Nokia LTE RL60, Feature Descriptions and Instructions 2016
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Nokia LTE RL60, Feature Descriptions and Instructions 2016...
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LTE Radio Access, Rel. FDDLTE16, Operating Documentation, Issue 02, Documentation Change Delivery 3 LTE RL60, Feature Descriptions and Instructions DN09185955 Issue 01J Approval Date 2016-07-25
LTE RL60, Feature Descriptions and Instructions
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© 2016 Nokia
DN09185955 Issue: 01J
LTE RL60, Feature Descriptions and Instructions
Table of Contents This document has 322 pages
Summary of changes................................................................... 22
1
RL60 Features - not supported by Flexi Zone Micro....................23
2
Introduction.................................................................................. 24
3
Activating and deactivating LTE features using BTS Site Manager. 25
4
Descriptions of radio resource management and telecom features. 27 LTE57: Inter RAT handover from UTRAN.................................... 27 Description of LTE57: Inter RAT handover from UTRAN............. 27 Benefits........................................................................................ 27 Requirements...............................................................................27 Functional description.................................................................. 27 System impact..............................................................................29 LTE57: Inter RAT handover from UTRAN management data...... 31 Sales information......................................................................... 32 Activating LTE57: Inter RAT handover from UTRAN....................32 Deactivating LTE57: Inter RAT handover from UTRAN............... 33 LTE60: Inter RAT handover to eHRPD/3GPP2............................ 34 Description of LTE60: Inter RAT Handover to eHRPD/3GPP2.... 34 Benefits........................................................................................ 34 Requirements...............................................................................34 Functional description.................................................................. 34 System impact..............................................................................36 LTE60: Inter RAT handover to eHRPD/3GPP2 management data.. 37 Sales information......................................................................... 41 Activating LTE60: Inter RAT handover to eHRPD/3GPP2........... 41 Deactivating LTE60: Inter RAT handover to eHRPD/3GPP2 ...... 45 LTE498: RAN Information Management for GSM........................ 46 Description of LTE498: RAN Information for GSM....................... 46 Benefits........................................................................................ 46 Requirements...............................................................................46 Functional description.................................................................. 47 System impact..............................................................................48 Management data........................................................................ 49 Sales information......................................................................... 51 Activating LTE498: RAN Information Management for GSM....... 51 Deactivating LTE498: RAN Information Management for GSM... 53 LTE520: 8 EPS bearers per UE................................................... 53
4.1 4.1.1 4.1.1.1 4.1.1.2 4.1.1.3 4.1.1.4 4.1.1.5 4.1.1.6 4.1.2 4.1.3 4.2 4.2.1 4.2.1.1 4.2.1.2 4.2.1.3 4.2.1.4 4.2.1.5 4.2.1.6 4.2.2 4.2.3 4.3 4.3.1 4.3.1.1 4.3.1.2 4.3.1.3 4.3.1.4 4.3.1.5 4.3.1.6 4.3.2 4.3.3 4.4
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LTE RL60, Feature Descriptions and Instructions
4.4.1 4.4.1.1 4.4.1.2 4.4.1.3 4.4.1.4 4.4.1.5 4.4.1.6 4.4.2 4.4.3 4.5 4.5.1 4.5.1.1 4.5.1.2 4.5.1.3 4.5.1.4 4.5.1.5 4.5.1.6 4.5.2 4.5.3 4.6 4.6.1 4.6.1.1 4.6.1.2 4.6.1.3 4.6.1.4 4.6.1.5 4.6.1.6 4.6.2 4.6.3 4.7 4.7.1 4.7.1.1 4.7.1.2 4.7.1.3 4.7.1.4 4.7.1.5 4.7.1.6 4.7.2 4.7.3 4.8 4.8.1
4
Description of LTE520: 8 EPS bearers per UE............................ 53 Benefits........................................................................................ 53 Requirements...............................................................................53 Functional description.................................................................. 54 System impact..............................................................................54 LTE520: 8 EPS bearers per UE management data..................... 55 Sales information......................................................................... 55 Activating and configuring LTE520: 8 EPS bearers per UE......... 55 Deactivating LTE520: 8 EPS bearers per UE...............................57 LTE801: Group hopping for UL reference signal..........................58 Description of LTE801: Group hopping for UL reference signal...58 Benefits........................................................................................ 58 Requirements...............................................................................58 Functional description.................................................................. 59 System impact..............................................................................59 LTE801: Group hopping for UL reference signal management data ..................................................................................................... 59 Sales information......................................................................... 60 Activating and configuring LTE801: Group hopping for UL reference signal............................................................................60 Deactivating LTE801: Group hopping for UL reference signal..... 61 LTE874: CSFB to CDMA/1xRTT for dual RX Ues........................62 Description of LTE874: CSFB to CDMA/1xRTT for dual RX Ues..... 62 Benefits........................................................................................ 62 Requirements...............................................................................62 Functional description.................................................................. 62 System impact..............................................................................64 LTE874: CSFB to CDMA/1xRTT for dual RX Ues management data.............................................................................................. 66 Sales information......................................................................... 67 Activating and configuring LTE874: CSFB to CDMA/1xRTT for dual RX UEs.................................................................................67 Deactivating LTE874: CSFB to CDMA/1xRTT for dual RX UEs...... 69 LTE944: PUSCH masking............................................................ 69 Description of LTE944: PUSCH masking..................................... 69 Benefits........................................................................................ 70 Requirements...............................................................................70 Functional description.................................................................. 70 System impact..............................................................................72 LTE944: PUSCH masking management data.............................. 73 Sales information......................................................................... 73 Activating and configuring LTE944: PUSCH masking..................74 Deactivating LTE944: PUSCH masking....................................... 75 LTE1047: Control plane overload handling.................................. 76 Description of LTE1047: Control plane overload handling........... 76
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DN09185955 Issue: 01J
LTE RL60, Feature Descriptions and Instructions
4.8.1.1 4.8.1.2 4.8.1.3 4.8.1.4 4.8.1.5 4.8.1.6 4.8.2 4.8.3 4.9 4.9.1 4.9.1.1 4.9.1.2 4.9.1.3 4.9.1.4 4.9.1.5 4.9.1.6 4.9.2 4.9.3 4.10 4.10.1 4.10.1.1 4.10.1.2 4.10.1.3 4.10.1.4 4.10.1.5 4.10.1.6 4.10.2 4.10.3 4.11 4.11.1 4.11.1.1 4.11.1.2 4.11.1.3 4.11.1.4 4.11.1.5 4.11.1.6 4.11.2 4.11.3 4.12 4.12.1 4.12.1.1 4.12.1.2
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Benefits........................................................................................ 76 Requirements...............................................................................77 Functional description.................................................................. 77 System impact..............................................................................78 LTE1047: Control plane overload handling management data.... 79 Sales information......................................................................... 80 Activating and configuring LTE1047: Control plane overload handling........................................................................................80 Deactivating LTE1047: Control plane overload handling............. 81 LTE1074: Multimedia priority services..........................................82 Description of LTE1074: Multimedia priority services...................82 Benefits........................................................................................ 82 Requirements...............................................................................82 Functional description.................................................................. 83 System impact..............................................................................84 LTE1074: Multimedia priority services management data............84 Sales information......................................................................... 85 Activating and configuring LTE1074: Multimedia priority services... 86 Deactivating LTE1074: Multimedia priority services.....................88 LTE1198: RSRQ triggered mobility.............................................. 88 Description of LTE1198: RSRQ Triggered Mobility...................... 88 Benefits........................................................................................ 88 Requirements...............................................................................89 Functional description.................................................................. 89 System impact..............................................................................89 LTE1198: RSRQ triggered mobility management data................ 90 Sales information......................................................................... 91 Activating LTE1198: RSRQ triggered mobility..............................91 Deactivating LTE1198: RSRQ triggered mobility..........................93 LTE1231: Operator-specific GBR QCIs........................................94 Description of LTE1231: Operator-specific GBR QCIs.................94 Benefits........................................................................................ 94 Requirements...............................................................................94 Functional description.................................................................. 94 System impact..............................................................................95 LTE1231: Operator-specific GBR QCIs management data..........95 Sales information......................................................................... 97 Activating and configuring LTE1231: Operator-specific GBR QCIs. 97 Deactivating LTE1231: Operator-specific GBR QCIs...................98 LTE1332: Downlink Carrier Aggregation - 40 MHz...................... 99 Description of LTE1332: Downlink Carrier Aggregation - 40 MHz... 99 Benefits........................................................................................ 99 Requirements...............................................................................99
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LTE RL60, Feature Descriptions and Instructions
4.12.1.3 4.12.1.4 4.12.1.5 4.12.1.6 4.12.2 4.12.3 4.13 4.13.1 4.13.1.1 4.13.1.2 4.13.1.3 4.13.1.4 4.13.1.5 4.13.1.6 4.13.2 4.13.3 4.14 4.14.1 4.14.1.1 4.14.1.2 4.14.1.3 4.14.1.4 4.14.1.5 4.14.1.6 4.14.2 4.14.3 4.15 4.15.1 4.15.1.1 4.15.1.2 4.15.1.3 4.15.1.4 4.15.1.5 4.15.1.6 4.15.2 4.15.3 4.16 4.16.1 4.16.1.1 4.16.1.2 4.16.1.3
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Functional description................................................................ 100 System impact............................................................................103 LTE1332: Downlink Carrier Aggregation - 40 MHz management data............................................................................................ 104 Sales information....................................................................... 106 Activating and configuring LTE1332: Downlink Carrier Aggregation - 40 MHz.....................................................................................106 Deactivating LTE1332: Downlink Carrier Aggregation - 40 MHz...... 111 LTE1336: Interference aware UL power control......................... 111 Description of LTE1336: Interference aware UL power control........ 111 Benefits.......................................................................................112 Requirements............................................................................. 112 Functional description.................................................................112 System impact............................................................................ 114 LTE1336: Interference aware UL power control management data. 115 Sales information........................................................................116 Activating and configuring LTE1336: Interference aware UL power control.........................................................................................116 Deactivating LTE1336: Interference aware UL power control.... 118 LTE1342: Extended RNC ID.......................................................119 Description of LTE1342: Extended RNC ID................................119 Benefits.......................................................................................119 Requirements............................................................................. 119 Functional description.................................................................119 System impact............................................................................120 Management data...................................................................... 121 Sales information....................................................................... 121 Activating and configuring LTE1342: Extended RNC ID............ 121 Deactivating LTE1342: Extended RNC ID..................................124 LTE1382: Cell resource groups..................................................125 Description of LTE1382: Cell resource groups ..........................125 Benefits...................................................................................... 125 Requirements.............................................................................125 Functional description................................................................ 126 System impact............................................................................127 LTE1382: Cell resource groups management data....................128 Sales information....................................................................... 131 Activating and configuring LTE1382: Cell resource groups....... 131 Deactivating LTE1382: Cell resource groups............................. 134 LTE1402: Uplink Intra-eNB CoMP..............................................134 Description of LTE1402: Uplink Intra-eNB CoMP.......................134 LTE1402 benefits....................................................................... 134 Requirements.............................................................................135 Functional description................................................................ 135
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LTE RL60, Feature Descriptions and Instructions
4.16.1.4 4.16.1.5 4.16.1.6 4.16.2 4.16.3 4.17 4.17.1 4.17.1.1 4.17.1.2 4.17.1.3 4.17.1.4 4.17.1.5 4.17.1.6 4.17.2 4.17.3 4.18 4.18.1 4.18.1.1 4.18.1.2 4.18.1.3 4.18.1.4 4.18.1.5 4.18.1.6 4.18.2 4.18.3 4.19 4.19.1 4.19.1.1 4.19.1.2 4.19.1.3 4.19.1.4 4.19.1.5 4.19.1.6 4.19.2 4.19.3 4.20 4.20.1 4.20.1.1 4.20.1.2
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System impact............................................................................136 LTE1402: Uplink Intra-eNB CoMP management data............... 137 Sales information....................................................................... 138 Activating and configuring LTE1402: Uplink Intra-eNB CoMP... 138 Deactivating LTE1402: Uplink Intra-eNB CoMP.........................140 LTE1433: LPPa support for OTDOA.......................................... 140 Description of LTE1433: LPPa support for OTDOA................... 140 Benefits...................................................................................... 140 Requirements.............................................................................141 Functional description................................................................ 141 System impact............................................................................143 LTE1433: LPPa support for OTDOA management data............ 143 Sales information....................................................................... 144 Activating and configuring LTE1433: LPPa support for OTDOA...... 144 Deactivating LTE1433: LPPa support for OTDOA..................... 146 LTE1441: Enhanced CS Fallback to CDMA/1xRTT (e1xCSFB)...... 146 Description of LTE1441: Enhanced CS Fallback to CDMA/1xRTT (e1xCSFB)................................................................................. 146 Benefits...................................................................................... 147 Requirements.............................................................................147 Functional description................................................................ 147 System impact............................................................................150 LTE1441: Enhanced CS Fallback to CDMA/1xRTT (e1xCSFB) management data...................................................................... 152 Sales information....................................................................... 159 Activating and configuring LTE1441: Enhanced CS Fallback to CDMA/1xRTT (e1xCSFB).......................................................... 159 Deactivating of LTE1441: Enhanced CS Fallback to CDMA/1xRTT (e1xCSFB)................................................................................. 166 LTE1495: Fast uplink link adaptation......................................... 166 Description of LTE1495: Fast uplink link adaptation.................. 166 Benefits...................................................................................... 167 Requirements.............................................................................167 Functional description................................................................ 167 System impact............................................................................168 LTE1495: Fast uplink link adaptation management data........... 169 Sales information....................................................................... 170 Activating and configuring LTE1495: Fast uplink link adaptation..... 171 Deactivating LTE1495: Fast uplink link adaptation.................... 174 LTE1531: Inter-frequency Load Balancing Extension................ 174 Description of LTE1531: Inter-frequency Load Balancing Extension................................................................................... 174 Benefits...................................................................................... 175 Requirements.............................................................................175
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LTE RL60, Feature Descriptions and Instructions
4.20.1.3 4.20.1.4 4.20.1.5 4.20.1.6 4.20.2 4.20.3 4.21 4.21.1 4.21.1.1 4.21.1.2 4.21.1.3 4.21.1.4 4.21.1.5 4.21.1.6 4.21.2 4.21.3 4.22 4.22.1 4.22.1.1 4.22.1.2 4.22.1.3 4.22.1.4 4.22.1.5 4.22.1.6 4.22.2 4.22.3 4.23 4.23.1 4.23.1.1 4.23.1.2 4.23.1.3 4.23.1.4 4.23.1.5 4.23.1.6 4.23.2 4.23.3 4.24 4.24.1
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Functional description................................................................ 175 System impact............................................................................176 Management data...................................................................... 176 Sales information....................................................................... 178 Activating LTE1531: Inter-frequency Load Balancing Extension..... 178 Deactivating LTE1531: Inter-frequency Load Balancing Extension. 180 LTE1534: Multiple Frequency Band Indicator............................ 181 Description of LTE1534: Multiple Frequency Band Indicator..... 181 Benefits...................................................................................... 181 Requirements.............................................................................181 Functional description................................................................ 181 System impact............................................................................183 Management data...................................................................... 184 Sales information....................................................................... 186 Activating LTE1534: Multiple Frequency Band Indicator............186 Deactivating LTE1534: Multiple Frequency Band Indicator....... 187 LTE1677: Idle Mode Mobility Balancing Extensions.................. 188 Description of LTE1677: Idle Mode Mobility Balancing Extensions. 188 Benefits...................................................................................... 188 Requirements.............................................................................189 Functional description................................................................ 189 System impact............................................................................191 LTE1677: Management data...................................................... 192 Sales information....................................................................... 196 Activating and configuring LTE1677: Idle Mode Mobility Balancing Extensions..................................................................................196 Deactivating LTE1677: Idle Mode Mobility Balancing Extensions.... 206 LTE1755: Multiple emergency areas per cell............................. 207 Description of LTE1755: Multiple emergency areas per cell...... 207 Benefits...................................................................................... 207 Requirements.............................................................................208 Functional description................................................................ 208 System impact............................................................................208 LTE1755: Multiple emergency areas per cell management data..... 209 Sales information....................................................................... 209 Activating and configuring LTE1755: Multiple emergency areas per cell........................................................................................209 Deactivating LTE1755: Multiple emergency areas per cell.........211 LTE2008: Extended Inter-frequency Measurements..................212 Description of LTE2008: Extended Inter-frequency Measurements. 212
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Descriptions of transport and transmission features.................. 215
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5.1 5.1.1 5.1.1.1 5.1.1.2 5.1.1.3 5.1.1.3.1 5.1.1.3.1.1 5.1.1.3.2 5.1.1.3.3 5.1.1.4 5.1.1.5 5.1.1.6 5.1.2 5.1.3 5.2 5.2.1 5.2.1.1 5.2.1.2 5.2.1.3 5.2.1.4 5.2.1.5 5.2.1.6 5.2.2 5.2.3 5.3 5.3.1 5.3.1.1 5.3.1.2 5.3.1.3 5.3.1.3.1 5.3.1.4 5.3.1.5 5.3.1.6 5.3.2 5.3.3 5.4 5.4.1 5.4.1.1 5.4.1.2 5.4.1.3 5.4.1.3.1
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LTE125: IPv6 for U/C-Plane....................................................... 215 Description of LTE125: IPv6 for U/C-Plane................................ 215 LTE125 - IPv6 for U/C-Plane benefits........................................ 215 LTE125 - IPv6 for U/C-Plane requirements................................215 LTE125 - IPv6 for U/C-Plane functional description................... 215 Migration.................................................................................... 215 Fast Fallback mechanism.......................................................... 217 Local IP Address Configuration..................................................217 Remote U/C-Plane IP Address Configuration............................ 217 LTE125- IPv6 for U/C-Plane system impact...............................218 LTE125- IPv6 for U/C-Plane management data.........................221 LTE125- IPv6 for U/C-Plane sales information...........................222 Activating and configuring LTE125: IPv6 for U/C-Plane.............223 Deactivating LTE125- IPv6 for U/C-Plane.................................. 224 LTE1390: IPsec Emergency Bypass.......................................... 225 Description of LTE1390: IPsec Emergency Bypass................... 225 LTE1390: IPsec Emergency Bypass benefits............................ 225 LTE1390: Emergency Bypass requirements.............................. 225 LTE1390: IPsec Emergency Bypass functional description....... 226 LTE1390: IPsec Emergency Bypass system impact.................. 227 LTE1390: IPsec Emergency Bypass management data............ 228 LTE1390: IPsec Emergency Bypass sales information..............229 Activating the LTE1390: IPsec Emergency Bypass feature using BTS Site Manager......................................................................229 Deactivating LTE1390: IPsec Emergency Bypass..................... 231 LTE1401: Measurement based TAC.......................................... 231 Description of LTE1401: Measurement based TAC................... 231 LTE1401:Measurement based TAC benefits..............................232 LTE1401:Measurement based TAC requirements..................... 232 LTE1401:Measurement based TAC functional description........ 233 User scenarios........................................................................... 234 LTE1401:Measurement based TAC system impact................... 235 LTE1401:Measurement based TAC management data............. 236 LTE1401:Measurement based TAC sales information............... 237 Activating and configuring LTE1401: Measurement-based Transport Admission Control......................................................237 Deactivating LTE1401: Measurement-based Transport Admission Control........................................................................................237 LTE1460: Local and Remote IP Traffic Capturing...................... 237 Description of LTE1460: Local and Remote IP Traffic Capturing..... 237 LTE1460: Local and Remote IP Traffic Capturing benefits........ 238 LTE1460: Local and Remote IP Traffic Capturing requirements...... 238 LTE1460: Local and Remote IP Traffic Capturing functional description..................................................................................239 User scenario............................................................................. 241
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LTE RL60, Feature Descriptions and Instructions
5.4.1.4
5.4.3
LTE1460: Local and Remote IP Traffic Capturing system impact.... 242 LTE1460: Local and Remote IP Traffic Capturing management data............................................................................................ 243 LTE1460: Local and Remote IP Traffic Capturing sales information ................................................................................................... 243 Activating and configuring LTE1460: Local and Remote IP Traffic Capturing....................................................................................243 Deactivating LTE1460: Local and Remote IP Traffic Capturing. 243
6 6.1 6.1.1
Descriptions of operability features............................................ 244 LTE556: ANR Intra-LTE, Inter-frequency - UE Based................ 244 Description of LTE556: ANR Intra-LTE, Inter-frequency - UE Based......................................................................................... 244 Benefits...................................................................................... 244 Requirements.............................................................................244 Functional description................................................................ 245 System impact............................................................................249 Management data...................................................................... 250 Sales information....................................................................... 251 Activating LTE556: ANR Intra-LTE, Inter-frequency - UE Based..... 251 Deactivating LTE556: ANR Intra-LTE, Inter-frequency - UE Based. 255 LTE954: Intelligent configuration synchronization ..................... 256 Description of LTE954: Intelligent configuration synchronization..... 256 Benefits...................................................................................... 256 Requirements.............................................................................257 Functional description................................................................ 257 System impact............................................................................257 Management data...................................................................... 258 Sales information....................................................................... 258 Configuring LTE954: Intelligent configuration synchronization.. 258 Removing the configuration of LTE954: Intelligent configuration synchronization.......................................................................... 260 LTE1245: Revocation Management .......................................... 260 Description of LTE1245: Revocation Management.................... 260 Benefits...................................................................................... 261 Requirements.............................................................................261 Functional description................................................................ 261 System impact............................................................................266 LTE1245: Revocation Management management data............. 267 Sales information....................................................................... 268 Activating and configuring the LTE1245: Revocation Management feature using BTS Site Manager................................................ 268 Deactivating LTE1245: Revocation Management...................... 272 LTE1361: Additional QoS performance measurements............. 272
5.4.1.5 5.4.1.6 5.4.2
6.1.1.1 6.1.1.2 6.1.1.3 6.1.1.4 6.1.1.5 6.1.1.6 6.1.2 6.1.3 6.2 6.2.1 6.2.1.1 6.2.1.2 6.2.1.3 6.2.1.4 6.2.1.5 6.2.1.6 6.2.2 6.2.3 6.3 6.3.1 6.3.1.1 6.3.1.2 6.3.1.3 6.3.1.4 6.3.1.5 6.3.1.6 6.3.2 6.3.3 6.4
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6.4.1 6.4.1.1 6.4.1.2 6.4.1.3 6.4.1.4 6.4.1.5 6.4.1.6 6.5 6.5.1 6.5.1.1 6.5.1.2 6.5.1.3 6.5.1.4 6.5.1.5 6.5.1.6 6.6 6.6.1 6.6.1.1 6.6.1.2 6.6.1.3 6.6.1.4 6.6.1.5 6.6.1.6 6.7 6.7.1 6.7.1.1 6.7.1.2 6.7.1.3 6.7.1.4 6.7.1.5 6.7.1.6 6.8 6.8.1 6.8.1.1 6.8.1.2 6.8.1.3 6.8.1.4 6.8.1.5 6.8.1.6 6.9 6.9.1 6.9.1.1
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Description of LTE1361: Additional QoS performance measurements........................................................................... 272 Benefits...................................................................................... 272 Requirements.............................................................................273 Functional description................................................................ 273 System impact............................................................................274 Management data...................................................................... 275 Sales information....................................................................... 279 LTE1486: Parameter Categorization.......................................... 279 Description of LTE1486 : Parameter Categorization ................. 279 Benefits...................................................................................... 280 Requirements.............................................................................280 Functional description................................................................ 280 System impact............................................................................281 Management data...................................................................... 281 Sales information....................................................................... 282 LTE1560: System Upgrade to RL60...........................................282 Description of LTE1560: System Upgrade to RL60................... 282 Benefits...................................................................................... 282 Requirements.............................................................................282 Functional description................................................................ 282 System impact............................................................................285 LTE1560: System Upgrade to RL60 management data............ 286 Sales information....................................................................... 286 LTE1657: Support for Multi-antenna RET device ......................286 Description of LTE1657: Support for Multi-antenna RET device ..... 286 Benefits...................................................................................... 287 Requirements.............................................................................287 Functional description................................................................ 287 System impact............................................................................287 Management data...................................................................... 288 Sales information....................................................................... 288 LTE1708: Extend Maximum Number of X2 Links.......................288 Description of LTE1708: Extend Maximum Number of X2 Links ..... 288 Benefits...................................................................................... 288 Requirements.............................................................................288 Functional description................................................................ 289 System impact............................................................................292 Management data...................................................................... 293 Sales information....................................................................... 295 LTE1909: BTS Diagnostics Toolkit used by operator................. 296 Description of LTE1909: BTS Diagnostics Toolkit used by operator ................................................................................................... 296 LTE1909 benefits....................................................................... 296
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LTE RL60, Feature Descriptions and Instructions
6.9.1.2 6.9.1.3 6.9.1.4 6.9.1.5
6.10 6.10.1 6.10.1.1 6.10.1.2 6.10.1.3 6.10.1.4 6.10.1.5 6.10.1.6
LTE1909 requirements............................................................... 296 LTE1909 functional description.................................................. 297 LTE1909 system impact............................................................. 297 LTE1909: BTS Diagnostics Toolkit used by operator management data............................................................................................ 297 LTE1909 sales information.........................................................298 Triggering snapshot collection using LTE1909: BTS Diagnosis Toolkit......................................................................................... 298 LTE1910: S1 lock/unlock............................................................299 Description of LTE1910: S1 lock/unlock.....................................299 LTE1910 benefits....................................................................... 299 LTE1910 requirements............................................................... 299 LTE1910 functional description.................................................. 300 LTE1910 system impact............................................................. 301 LTE1910: S1 lock/unlock management data..............................301 LTE1910 sales information.........................................................302
7 7.1 7.1.1 7.1.1.1 7.1.1.2 7.1.1.3 7.1.1.4 7.1.1.5
Descriptions of BTS site solution features................................. 303 LTE1440: FXFC Flexi RF Module 3TX 1900..............................303 Description of LTE1440: FXFC Flexi RF Module 3TX 1900.......303 LTE1440 benefits....................................................................... 303 LTE1440 requirements............................................................... 303 FXFC functional description....................................................... 304 LTE1440 system impact............................................................. 304 LTE1440: FXFC Flexi RF Module 3TX 1900 management data...... 304 LTE1440 sales information.........................................................305 LTE1444: FBBC Flexi Capacity Extension Sub-Module.............305 Description of LTE1444: FBBC Flexi Capacity Extension SubModule....................................................................................... 305 LTE1444 benefits....................................................................... 305 LTE1444 requirements............................................................... 305 LTE1444 functional description.................................................. 306 LTE1444 system impact............................................................. 307 LTE1444: FBBC Flexi Capacity Extension Sub-Module management data...................................................................... 307 LTE1444 sales information.........................................................307 LTE1508: Multiradio System Module Full LTE Configurations... 308 Description of Multiradio System Module full LTE configurations .... 308 LTE1508 Benefits....................................................................... 308 LTE1508 Requirements..............................................................308 LTE1508 Functional description................................................. 309 LTE1508 System impact............................................................ 309 LTE1508: Multiradio System Module full LTE configurations management data...................................................................... 310 LTE1508 Sales information........................................................ 310
6.9.1.6 6.9.2
7.1.1.6 7.2 7.2.1 7.2.1.1 7.2.1.2 7.2.1.3 7.2.1.4 7.2.1.5 7.2.1.6 7.3 7.3.1 7.3.1.1 7.3.1.2 7.3.1.3 7.3.1.4 7.3.1.5 7.3.1.6
12
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7.4 7.4.1 7.4.1.1 7.4.1.2 7.4.1.3 7.4.1.4 7.4.1.5 7.4.1.6 7.5 7.5.1 7.5.1.1 7.5.1.2 7.5.1.3 7.5.1.4 7.5.1.5 7.5.1.6 7.6 7.6.1 7.6.1.1 7.6.1.2 7.6.1.3 7.6.1.4 7.6.1.5 7.6.1.6 7.7 7.7.1 7.7.1.1 7.7.1.2 7.7.1.3 7.7.1.4 7.7.1.5 7.7.1.6 7.8 7.8.1 7.9 7.9.1 7.9.1.1
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LTE1644: Multiradio System Module Extended LTE Configurations with FBBC.................................................................................. 310 Description of Multiradio System Module extended LTE configurations with FBBC...........................................................310 LTE1644 Benefits....................................................................... 310 LTE1644 Requirements..............................................................311 LTE1644 Functional description................................................. 311 LTE1644 System impact............................................................ 312 LTE1644: Multiradio System Module extended LTE configurations with FBBC management data.................................................... 312 LTE1644 Sales information........................................................ 313 LTE1665: FXFB Flexi 3-sector RF Module 1900........................313 Description of LTE1665: FXFB Flexi 3-sector RF Module 1900....... 313 LTE1665 benefits....................................................................... 313 LTE1665 requirements............................................................... 314 LTE1665 functional description.................................................. 314 LTE1665 system impact............................................................. 314 LTE1665: FXFB Flexi 3-sector RF Module 1900 management data............................................................................................ 315 LTE1665 sales information.........................................................315 LTE1695: FXCB Flexi RF Module 850....................................... 315 Description of LTE1695: FXCB Flexi RF Module 850................ 315 LTE1695 benefits....................................................................... 315 LTE1695 requirements............................................................... 315 LTE1695 functional description.................................................. 316 LTE1695 system impact............................................................. 316 LTE1695: FXCB Flexi RF Module 850 management data......... 316 LTE1695 sales information.........................................................317 LTE1895: LTE-GSM and LTE-WCDMA RF sharing for dual band configurations.............................................................................317 Description of LTE1895: LTE-GSM and LTE-WCDMA RF sharing for dual band configurations.......................................................317 LTE1895 benefits....................................................................... 317 LTE1895 requirements............................................................... 317 LTE1895 functional description.................................................. 318 LTE1895 system impact............................................................. 318 LTE1895: LTE-GSM and LTE-WCDMA RF sharing for dual band configurations management data...............................................319 LTE1895 sales information.........................................................319 LTE1915: RF sharing LTE-WCDMA with FSMF for WCDMA.... 319 Description of LTE1915: RF sharing LTE-WCDMA with FSMF for WCDMA..................................................................................... 319 LTE1952: LTE GSM/WCDMA RF-sharing for Band 2 (1900MHz)... 321 Description of LTE1952: LTE GSM/WCDMA RF-sharing for Band 2 (1900MHz).............................................................................. 321 LTE1952 benefits....................................................................... 321
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LTE RL60, Feature Descriptions and Instructions
7.9.1.2 7.9.1.3 7.9.1.4 7.9.1.5 7.9.1.6
14
LTE1952 requirements............................................................... 321 LTE1952 functional description.................................................. 322 LTE1952 system impact............................................................. 322 LTE1952: LTE GSM/WCDMA RF-sharing for Band 2 (1900MHz) management data...................................................................... 322 LTE1952 sales information.........................................................322
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List of Figures Figure 1
HO from UTRAN preparation............................................................. 28
Figure 2
HO from UTRAN execution................................................................ 29
Figure 3
RIM protocol structure between E-UTRAN and GERAN....................47
Figure 4
Interference-aware UL power control diagram................................. 113
Figure 5
UL CoMP scenario........................................................................... 136
Figure 6
Protocol layer between E-SMLC and eNB....................................... 141
Figure 7
Example Configuration: IPv6 migration support............................... 216
Figure 8
Example configuration: U/C - application binding to IPv6, IPsec enabled.............................................................................................217
Figure 9
Migration example with IPsecv4/v6 tunneling in Transport Network...... 218
Figure 10
Traffic path in IPsec Emergency Bypass mode................................ 227
Figure 11
Overview...........................................................................................234
Figure 12
Network Operation Center................................................................239
Figure 13
Capture points.................................................................................. 240
Figure 14
Capturing mechanism.......................................................................241
Figure 15
ANR Intra-LTE, Inter-frequency UE Based neighbor discovery: radio frequency (RF) part.......................................................................... 246
Figure 16
Intra-eNB neighbor cells at different frequencies and fully overlap.. 247
Figure 17
Inter-eNB neighbor cells at different frequency bands, of different type and fully overlap............................................................................... 247
Figure 18
Automatic establishment of an inter-frequency NR.......................... 248
Figure 19
Cross-signed certificates in eNB...................................................... 262
Figure 20
SEG's chain of trust.......................................................................... 262
Figure 21
Top-down approach for the system upgrade.................................... 283
Figure 22
Selecting triggers for eNB snapshot collection................................. 298
Figure 23
Isometric view of FBBC.................................................................... 306
Figure 24
FBBC LEDs...................................................................................... 306
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LTE RL60, Feature Descriptions and Instructions
List of Tables
16
Table 1
RL60 Features - not supported by Flexi Zone Micro.......................... 23
Table 2
Software requirements....................................................................... 27
Table 3
New parameters................................................................................. 31
Table 4
Sales information................................................................................32
Table 5
Parameters used for activating and configuring LTE57: Inter RAT handover from UTRAN....................................................................... 32
Table 6
Software requirements....................................................................... 34
Table 7
Measurements....................................................................................38
Table 8
Counters............................................................................................. 38
Table 9
Parameters......................................................................................... 39
Table 10
Sales information................................................................................41
Table 11
Parameters used for activating and configuring LTE60: Inter RAT handover to eHRPD/3GPP2...............................................................41
Table 12
Software requirements....................................................................... 46
Table 13
Modified alarms.................................................................................. 49
Table 14
New parameters................................................................................. 50
Table 15
Related parameters............................................................................ 50
Table 16
Sales information................................................................................51
Table 17
Parameters used for activating and configuring LTE498: RAN Information Management for GSM..................................................... 51
Table 18
Software requirements....................................................................... 54
Table 19
Sales information................................................................................55
Table 20
Software requirements....................................................................... 59
Table 21
New parameter................................................................................... 60
Table 22
Sales information................................................................................60
Table 23
Software requirements....................................................................... 62
Table 24
Counters............................................................................................. 66
Table 25
New parameter................................................................................... 66
Table 26
Updated or reused parameters...........................................................66
Table 27
Sales information................................................................................67
Table 28
Parameters used for activating and configuring LTE874: CSFB to CDMA/1xRTT for dual RX UEs.......................................................... 67
Table 29
Software requirements....................................................................... 70
Table 30
New parameters................................................................................. 73
Table 31
Related existing parameters...............................................................73
Table 32
Sales information................................................................................73
Table 33
Parameters used for activating and configuring LTE944: PUSCH masking.............................................................................................. 74
Table 34
Software requirements....................................................................... 77
Table 35
New counters......................................................................................79
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Table 36
New parameters................................................................................. 79
Table 37
Sales information................................................................................80
Table 38
Parameters used for activating and configuring LTE1047: Control plane overload handling..................................................................... 80
Table 39
Software requirements....................................................................... 82
Table 40
Existing counters................................................................................ 84
Table 41
New parameters................................................................................. 85
Table 42
Related parameters............................................................................ 85
Table 43
Sales information................................................................................85
Table 44
Parameters used for activating and configuring LTE1074: Multimedia priority services...................................................................................86
Table 45
Software requirements....................................................................... 89
Table 46
Parameters......................................................................................... 90
Table 47
Sales information................................................................................91
Table 48
Parameters used for activating and configuring LTE1198: RSRQ triggered mobility................................................................................ 91
Table 49
Software requirements....................................................................... 94
Table 50
New parameters................................................................................. 96
Table 51
Related existing parameters...............................................................96
Table 52
Sales information................................................................................97
Table 53
Parameters used for activating and configuring LTE1231: Operator specific GBR QCIs..............................................................................97
Table 54
Software requirements..................................................................... 100
Table 55
Related existing counters................................................................. 104
Table 56
Related existing key performance indicators....................................105
Table 57
New parameters............................................................................... 105
Table 58
Related existing parameters.............................................................105
Table 59
Sales information..............................................................................106
Table 60
Parameters used for activating and configuring the LTE1332: Downlink Carrier Aggregation - 40 MHz........................................... 106
Table 61
Software requirements......................................................................112
Table 62
Existing counters.............................................................................. 115
Table 63
New parameters............................................................................... 115
Table 64
Sales information.............................................................................. 116
Table 65
Parameters used for activating and configuring LTE1336: Interference aware UL power control.................................................................... 116
Table 66
Software requirements......................................................................119
Table 67
Related existing parameters.............................................................121
Table 68
Sales information..............................................................................121
Table 69
Parameters used for configuring LTE1342: Extended RNC ID........ 122
Table 70
Software requirements..................................................................... 125
Table 71
Related existing counters................................................................. 128
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18
Table 72
New parameters............................................................................... 129
Table 73
Related existing parameters.............................................................129
Table 74
Sales information..............................................................................131
Table 75
Parameters used for activating and configuring LTE1382: Cell resource groups................................................................................131
Table 76
Software Requirements.................................................................... 135
Table 77
New counters....................................................................................137
Table 78
New parameters............................................................................... 137
Table 79
Sales Information..............................................................................138
Table 80
Parameters used for activating and configuring LTE1402: Uplink IntraeNB CoMP........................................................................................138
Table 81
Software requirements..................................................................... 141
Table 82
New parameters............................................................................... 143
Table 83
Related existing parameters.............................................................144
Table 84
Sales information..............................................................................144
Table 85
Parameters used for activating and configuring LTE1433: LPPa support for OTDOA...........................................................................144
Table 86
Software requirements..................................................................... 147
Table 87
Related existing counters................................................................. 152
Table 88
New parameters............................................................................... 153
Table 89
New parameters............................................................................... 155
Table 90
Related existing parameters.............................................................158
Table 91
Sales information..............................................................................159
Table 92
Parameters used for activating and configuring LTE1441: Enhanced CS Fallback to CDMA/1xRTT (e1xCSFB)........................................ 159
Table 93
Software requirements..................................................................... 167
Table 94
Related existing counters................................................................. 169
Table 95
Related existing key performance indicators....................................169
Table 96
New parameter................................................................................. 170
Table 97
Modified parameters.........................................................................170
Table 98
Related existing parameters.............................................................170
Table 99
Sales information..............................................................................170
Table 100
Parameters used for activating and configuring LTE1495: Fast uplink link adaptation.................................................................................. 171
Table 101
Software requirements..................................................................... 175
Table 102
New parameters............................................................................... 177
Table 103
Related parameters.......................................................................... 177
Table 104
Sales information..............................................................................178
Table 105
Parameters used for activating and configuring LTE1531: Interfrequency Load Balancing Extension............................................... 178
Table 106
Software requirements..................................................................... 181
Table 107
New parameters............................................................................... 185
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Table 108
Related existing parameters.............................................................185
Table 109
Sales information..............................................................................186
Table 110
Parameters used for activating and configuring LTE1534: Multiple Frequency Band Indicator................................................................ 186
Table 111
Software requirements..................................................................... 189
Table 112
New parameters............................................................................... 193
Table 113
Related existing parameters.............................................................194
Table 114
Sales information..............................................................................196
Table 115
Parameters used for activating and configuring LTE1677: Idle Mode Mobility Balancing Extensions.......................................................... 197
Table 116
Software requirements..................................................................... 208
Table 117
Related existing parameters.............................................................209
Table 118
Sales information..............................................................................209
Table 119
Parameters used for configuring LTE1755: Multiple emergency areas per cell.............................................................................................. 209
Table 120
Hardware and software requirements.............................................. 212
Table 121
New parameters............................................................................... 214
Table 122
Sales information..............................................................................214
Table 123
Software requirements..................................................................... 215
Table 124
New Alarms...................................................................................... 221
Table 125
New parameters............................................................................... 222
Table 126
New Parameters with structure Static IPv6 Routes Set (staticIpv6Routes).............................................................................222
Table 127
Sales information..............................................................................222
Table 128
Parameters used for activating and configuring LTE125- IPv6 for U/CPlane................................................................................................ 223
Table 129
Software requirements..................................................................... 226
Table 130
New Alarms...................................................................................... 228
Table 131
New parameters............................................................................... 229
Table 132
Sales information..............................................................................229
Table 133
Parameters used for activating and configuring the LTE1390: IPsec Emergency Bypass feature.............................................................. 229
Table 134
Software requirements..................................................................... 232
Table 135
Standardized QCI characteristics..................................................... 233
Table 136
New counters....................................................................................236
Table 137
New parameters............................................................................... 237
Table 138
Sales information..............................................................................237
Table 139
Software requirements..................................................................... 238
Table 140
New Alarms...................................................................................... 243
Table 141
Sales information..............................................................................243
Table 142
Software requirements..................................................................... 244
Table 143
Resulting ANR method toward target frequency F2......................... 249
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Table 144
Related existing counters................................................................. 250
Table 145
New parameters............................................................................... 250
Table 146
Related existing parameters.............................................................251
Table 147
Sales information..............................................................................251
Table 148
Parameters used for activating and configuring LTE556: ANR IntraLTE, Inter-frequency - UE Based......................................................251
Table 149
Software Requirements.................................................................... 257
Table 150
New parameters............................................................................... 258
Table 151
Sales Information..............................................................................258
Table 152
Software Requirements.................................................................... 261
Table 153
Modified alarms................................................................................ 267
Table 154
New parameters............................................................................... 267
Table 155
Related existing parameters.............................................................268
Table 156
Sales Information..............................................................................268
Table 157
Parameters used for activating and configuring the LTE1245: Revocation Management feature..................................................... 268
Table 158
Software Requirements.................................................................... 273
Table 159
New Measurements and counters....................................................275
Table 160
New key performance indicators ..................................................... 278
Table 161
New Parameters...............................................................................279
Table 162
Sales information..............................................................................279
Table 163
Software Requirements.................................................................... 280
Table 164
Sales Information..............................................................................282
Table 165
Software Requirements.................................................................... 282
Table 166
Related existing alarm...................................................................... 286
Table 167
Sales Information..............................................................................286
Table 168
Software Requirements.................................................................... 287
Table 169
Sales Information..............................................................................288
Table 170
Software Requirements.................................................................... 289
Table 171
Maximum number of supported neighbor objects............................ 289
Table 172
Related existing alarms.................................................................... 293
Table 173
Related existing counters................................................................. 293
Table 174
New parameters............................................................................... 295
Table 175
Related existing parameters.............................................................295
Table 176
Sales Information..............................................................................295
Table 177
Software requirements..................................................................... 296
Table 178
Sales Information..............................................................................298
Table 179
Software Requirements.................................................................... 299
Table 180
New Alarms...................................................................................... 302
Table 181
Sales Information..............................................................................302
Table 182
Software Requirements.................................................................... 303
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Table 183
Sales Information..............................................................................305
Table 184
Software requirements..................................................................... 305
Table 185
Sales information..............................................................................307
Table 186
Software Requirements.................................................................... 308
Table 187
Number of extra new RF units .........................................................309
Table 188
Sales Information..............................................................................310
Table 189
Software Requirements.................................................................... 311
Table 190
Existing parameters related to LTE1644.......................................... 312
Table 191
Sales Information..............................................................................313
Table 192
Software Requirements.................................................................... 314
Table 193
Sales Information..............................................................................315
Table 194
Software Requirements.................................................................... 316
Table 195
Sales Information..............................................................................317
Table 196
Software Requirements.................................................................... 317
Table 197
Sales Information..............................................................................319
Table 198
Hardware and software requirements.............................................. 320
Table 199
Sales information..............................................................................321
Table 200
Software Requirements.................................................................... 321
Table 201
Sales Information..............................................................................322
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Summary of changes
LTE RL60, Feature Descriptions and Instructions
Summary of changes Changes between issues 01I (2016-06-29, FDD-LTE16A) and 01J (2016-07-25, FDDLTE16) Radio Resource Management The following feature has been updated: •
LTE1332: Downlink Carrier Aggregation - 40 MHz
Changes between issues 01H (2016-02-19, FDD-LTE16) and 01I (2016-06-29, FDDLTE16A) Radio Resource Management The following feature has been updated: • • • • •
LTE1382: Cell resource groups LTE498: RAN Information Management for GSM LTE874: CSFB to CDMA/1xRTT for dual RX Ues LTE1441: Enhanced CS fallback to CDMA/1xRTT (e1xCSFB) LTE1332: Downlink Carrier Aggregation - 40 MHz
Operability The following features have been updated: • •
LTE556: ANR Intra-LTE, Inter-frequency - UE Based LTE1708: Extend Maximum Number of X2 Links
Transport The following feature has been updated: • •
LTE125: IPv6 for U/C-Plane LTE1460: Local and Remote IP Traffic Capturing
Changes between issues 01G (2015-09-30, RL60) and 01H (2016-02-19, FDD-LTE 16) BTS Site Solution The following features have been updated: • •
22
LTE1508: Multiradio System Module full LTE configurations LTE1644: Multiradio System Module extended LTE configurations with FBBC
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LTE RL60, Feature Descriptions and Instructions
RL60 Features - not supported by Flexi Zone Micro
1 RL60 Features - not supported by Flexi Zone Micro The following features are not supported by Flexi Zone Micro: Table 1
RL60 Features - not supported by Flexi Zone Micro Features
Category
LTE1332: Downlink carrier aggregation - 40 MHz
RRM
LTE1402: Uplink Intra-eNB CoMP
RRM
LTE1440: FXFC Flexi RF Module 3TX 1900
BTS
LTE1444: FBBC Flexi Capacity Extension Sub-Module
BTS
LTE1508: Multiradio System Module full LTE configurations
BTS
LTE1560: System Upgrade to RL60
Operability
LTE1644: Multiradio System Module extended LTE configurations with FBBC
BTS
LTE1657: Support for Multi-antenna RET device
Operability
LTE1665: FXFB Flexi 3-sector RF Module 1900
BTS
LTE1695: FXCB Flexi RF Module 850
BTS
LTE1895: LTE-GSM and LTE-WCDMA RF sharing for dual band configurations
BTS
LTE1915: RF sharing LTE-WCDMA with FSMF for WCDMA
BTS
LTE1952: LTE GSM/WCDMA RF-sharing for Band 2 (1900MHz)
BTS
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Introduction
LTE RL60, Feature Descriptions and Instructions
2 Introduction This document provides the list of feature descriptions for the LTE Radio Access Network Release. Hardware (HW) requirements indicate if the feature requires specific HW from the RAN LTE portfolio. If the feature has no specific hardware requirements, it means that only LTE System Module should be used. The subchapter Interdependencies between features lists only dependencies among Nokia RAN LTE features.
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Activating and deactivating LTE features using BTS Site Manager
3 Activating and deactivating LTE features using BTS Site Manager Purpose Follow this general BTS Site Manager (BTSSM) procedure to activate or deactivate LTE features. Before you start The eNB must already be commissioned. The BTS Site Manager can be connected to the eNB either locally, or from a remote location. For information on feature-specific prerequisites, see section Before you start of every feature-specific procedure.
Steps 1
Start the BTSSM application and establish the connection to the eNB. For details, see Launching BTS Site Manager in Commissioning Flexi Multiradio BTS LTE or the BTSSM online help (section Instructions).
2
Upload the configuration plan file from the eNB. When the BTSSM is connected to the eNB, it automatically uploads the current configuration plan file from the eNB. a) Select View ► Commissioning or click Commissioning on the View bar. b) The BTS Site checkbox, located in the Target section, is selected by default. This is the recommended setting. c) Choose the commissioning type. Use the Template, Manual, or Reconfiguration option depending on the actual state of the eNB. For details, see Manual commissioning, Performing template commissioning, and Performing reconfiguration commissioning in Commissioning Flexi Multiradio BTS LTE.
3
Modify the feature-specific eNB configuration settings. The feature-related settings are found in the set of Commissioning pages. In the top right-hand corner of the BTSSM window, there is a location bar that shows at which stage of the Commissioning process the user is. It is recommended that the user carefully reads the pages containing full eNB configuration information.
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Activating and deactivating LTE features using BTS Site Manager
4
LTE RL60, Feature Descriptions and Instructions
Send the commissioning plan file to the eNB. Sub-steps a) Go to the Send Parameters page. b) In section Send, choose whether the BTSSM should send to the eNB only the changed parameters: Only changes (may require reset), or a whole set of parameters: All parameters (requires reset). c) Click the Send Parameters button.
5
The new commissioning plan file is automatically activated in the eNB. Sub-steps a) After successful transmission of the parameters, the new configuration is automatically activated. The BTSSM automatically sends an activation command after finishing the file download.
b) If the configuration changes require restart, the eNB performs the restart now.
g
26
Note: For information on possible restarts, see section Before you start of every feature -specific procedure.
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Descriptions of radio resource management and telecom features
4 Descriptions of radio resource management and telecom features 4.1 LTE57: Inter RAT handover from UTRAN 4.1.1 Description of LTE57: Inter RAT handover from UTRAN Introduction to the feature The LTE57: Inter RAT handover from UTRAN introduces active mode mobility from UTRAN to LTE.
4.1.1.1
Benefits End-user benefits This feature provides a better service quality experience for the end user, peak rates and latency, in LTE as in UTRAN. An inter-RAT handover for a UE from UTRAN (WCDMA and TD-SCDMA) to LTE is possible. Operator benefits The operator delivers an improved service quality for his customers.
4.1.1.2
Requirements Software requirements Table 2: Software requirements lists software required for this feature. Table 2
Software requirements
System release RL60
Flexi Multiradio BTS LBTS6.0
UE 3GPP R8 UE capabilities
Flexi Multiradio 10 BTS LBTS6.0
NetAct NetAct8 EP1
OMS -
MME -
SAE GW -
Hardware requirements This feature requires no new or additional hardware.
4.1.1.3
Functional description The LTE57: Inter RAT handover from UTRAN feature provides support for inter-IRAT handover of UEs from UTRAN (WCDMA & TD-SCDMA). Incoming IRAT Handover Requests are treated the same way as incoming intra-LTE S1-based handover requests with the exception that data forwarding is not supported and no delta configuration is done. The handover procedure is initiated by the RNC (Radio Network Controller).
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Descriptions of radio resource management and telecom features
LTE RL60, Feature Descriptions and Instructions
Handover from UTRAN is - similar as S1-based intra-LTE handover - one application of the generic incoming S1-based handover procedure. For Handover from UTRAN the eNB can only have the role of the Target eNB, as the handover source is outside LTE. From a Target eNB's point of view the procedure is very similar to incoming intra-LTE handover with the following exceptions: • • • • •
No data forwarding is applied. Usage of contention-based RACH access to target cell might be forced. Full configuration is applied as no source configuration from UTRAN can be used for delta configuration. Measurement configuration via the target cell after handover execution becomes mandatory as no previous measurement configuration is configured in the UE. UTRAN Source System-specific security setting is applied.
The eNB gets during the handover preparation phase an S1AP:HANDOVER REQUEST message from the MME. Figure 1
HO from UTRAN preparation
UE
UTRAN
eNB
SGSN
MME
S-GW/P-GW
RANAP:Relocation Required
HOpreparationwithinEPC
S1AP:HandoverRequest (HandoverType=UTRANtoLTE) AdmissionControl and ResourceAllocation
S1AP:HandoverRequestAcknowledge (RRCContainerincludingHandoverCommandmessageforUE)
TS1RELOCexec Messageforwarding RANAP:Relocation Command
Following Parameters have a specific use in case of incoming HO from UTRAN: • • •
The handover type is set to UTRANtoLTE. NAS Security Parameters to E-UTRAN are present. The RRC Container within the Source eNB to Target eNB Transparent Container does not contain as-Config, as-Context, or ue-ConfigRelease-r9.
If the eNB detects that the incoming HO is from Source RAT UTRAN, the eNB verifies that feature LTE57: Inter RAT handover from UTRAN is activated. If LTE57: Inter RAT handover from UTRAN is deactivated, the eNB rejects the HO Request with the cause value Radio Network Layer (Handover Target not allowed). If the IE NAS Security Parameters to E-UTRAN is missing, the eNB rejects the HO Request with the cause value Protocol Cause(Abstract Syntax Error (Reject)).
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Descriptions of radio resource management and telecom features
The eNB applies the same admission control thresholds for the handover request as for other incoming mobility handovers, intra-LTE handovers, and either acknowledges or rejects the handover request. The RNC issues, after a successful handover preparation phase, a handover command to the UE with embedded RRCConnectionReconfiguration information. Figure 2
HO from UTRAN execution
UE
UTRAN
eNB
SGSN
MME
S-GW/P-GW
RRC:HOfromUTRANCommand
DetachfromUTRANsourcecellperform randomaccessprocedureonLTEtargetcell
RRC:Connection ReconfigurationComplete
T S1RELOCexec UplinkUserData
UplinkUserData
The UE accesses the LTE and finalizes the handover with a RRC:RRCConnectionReconfigurationComplete message to the eNB. The eNB sends afterwards a S1AP:HandoverNotify message to the MME. The MME might trigger after a successful handover a security key update via the S1AP:UEContextModificationRequest message. The eNB performs the security key update via an intra-cell handover. The following O&M parameters are new: • •
Feature-flag/feature (de-)activation Switch for (Non) contention based RACH access
The feature can be enabled/disabled per BTS by setting the Activate handover from UTRAN parameter to true/false.
4.1.1.4
System impact Interdependencies between features The following features have interdependencies to the LTE57: Inter RAT handover from UTRAN feature: •
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LTE511: Intra-Cell handover : The LTE511: Intra-Cell handover feature describes the application of intra cell handover for security key update. As it is very likely that MME triggers a security key update shortly after an incoming handover from UTRAN, the LTE511: Intra-Cell handover feature is a prerequisite for the LTE57: Inter RAT handover from UTRAN feature. Otherwise, each incoming UE would be released by eNB shortly after HO completion. As LTE511: Intra-Cell handover is a basic feature of RL50, no crosscheck for feature activation is needed.
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Descriptions of radio resource management and telecom features
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LTE RL60, Feature Descriptions and Instructions
LTE54: Intra-LTE handover via S1: The LTE54: Intra-LTE handover via S1 feature has introduced the general procedure handling for incoming S1-based handover. This functionality is reused for the LTE57: Inter RAT handover from UTRAN feature. However both features may be activated independently from each other RAN2264: Smart LTE Handover: The RAN2264: Smart LTE Handover feature is a corresponding feature on UTRAN side that was introduced to support Handover from UTRAN to LTE. FC085_000407 3G Gn based handover: The FC085_000407 3G Gn based handover feature is a corresponding feature on MME side which was introduced to support Handover from UTRAN to LTE. FC085_000535 Rel-8 architecture support for inter system mobility: The FC085_000535 Rel-8 architecture support for inter system mobility feature is a corresponding feature on MME side that was introduced to support Handover from UTRAN to LTE. FC085_001505 S3 based Inter-system handover: The FC085_001505 S3 based Inter-system handover feature is a corresponding feature on MME side that was introduced to support Handover from UTRAN to LTE. FC085_000448 Gn based mobility: The FC085_000448 Gn based mobility feature is a corresponding feature on SAE GW side that was introduced to support Handover from UTRAN to LTE. FC085_000698 Commercial level 2G/3G & LTE interworking (Gn based): The FC085_000698 Commercial level 2G/3G & LTE interworking (Gn based) feature is a corresponding feature on SAE GW side that was introduced to support Handover from UTRAN to LTE. FC085_000418 10A_601_Inter RAT Handover 3G: The FC085_000418 10A_601_Inter RAT Handover 3G feature is a corresponding feature on SAE GW side that was introduced to support Handover from UTRAN to LTE. LTE497: Smart Admission Control: The LTE497: Smart Admission Control feature handles incoming handovers from UTRAN transparently in the same way as intraLTE handovers. LTE534: ARP-based Admission Control for E-RABs: The LTE534: ARP-based Admission Control for E-RABs feature handles incoming handovers from UTRAN transparently in the same way as intra-LTE handovers. LTE1382: Cell Resource Groups: PLMN-ID selective Admission Control applied for Cell resource groups handles incoming handovers from UTRAN transparently in the same way as intra LTE handovers. LTE1170: Inter eNodeB IF Load Balancing: The LTE1170: Inter eNodeB IF Load Balancing feature specified rules to reject incoming handover requests for load based intra LTE handovers. If the LTE1170: Inter eNodeB IF Load Balancing feature and the LTE57: Inter RAT handover from UTRAN feature are activated commonly, the same rules shall be applied for load based IRAT handovers. LTE1089: Downlink Carrier Aggregation: The LTE1089: Downlink Carrier Aggregation feature foresees that carrier aggregation might be applied in the target cell to incoming UE after Handover completion. This is applied to a UE entering from UTRAN as well. LTE1047: Control plane overload handling: One measure to defend against C-Plane overload defined in the LTE1047: Control plane overload handling feature is to reject incoming intra-LTE inter eNB handover requests. With the introduction of the LTE57: Inter RAT handover from UTRAN feature, incoming IRAT handover is rejected according to the same rules.
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Descriptions of radio resource management and telecom features
LTE1074: Multimedia Priority Services: The LTE1074: Multimedia Priority Services feature introduces special handling for High Priority Services. Especially Admission Control for incoming Handover is extended. Incoming Handover from UTRAN according to LTE will be treated in the same was as incoming intra-LTE Handover. LTE1139: ZUC security algorithm: The LTE1139: ZUC security algorithm is applied for UE entering from UTRAN according to the same rules as for UE entering from LTE.
•
•
Impact on interfaces S1 - Interface The existing messages HANDOVER REQUEST HANDOVER REQUEST ACKNOWLEDGE
• •
are extended to support the additional value "UTRANtoLTE" as Handover Type. The HANDOVER REQUEST contains the new IE "NAS Security Parameters to EUTRAN" Impact on network and network element management tools This feature has no impact on network management or network element management tools. Impact on system performance and capacity This feature has no impact on system performance or capacity.
4.1.1.5
LTE57: Inter RAT handover from UTRAN management data Alarms There are no alarms related to this feature. Measurements and counters There are no measurements and counters related to this feature. Key performance indicators There are no key performance indicators related to this feature. Parameters The table lists parameters introduced with this feature. Table 3
New parameters
Full name
Abbreviated name
Managed object
Activate handover from UTRAN
actHoFromUtran
LNBTS
RACH access for handover from UTRAN
rachAccessForHoFromUtran
LNBTS
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4.1.1.6
LTE RL60, Feature Descriptions and Instructions
Sales information Table 4
Sales information BSW/ASW
ASW
License control in network element SW Asset Monitoring
License control attributes -
4.1.2 Activating LTE57: Inter RAT handover from UTRAN Before you start The eNB has activated the RNW (Radio Network ) database and the LTE cells have been set up. Table 5
Parameters used for activating and configuring LTE57: Inter RAT handover from UTRAN Parameter
Purpose
Requires eNB restart or object locking
Activate handover from UTRAN (actHofromUtran)
activation flag
no
RACH access for handover from UTRAN ( rachAccessForHoFrom Utran)
optional configuration
no
By default UEs are configured to perform contention based RACH access. If the eNodeB shall provide and reserve a dedicated RACH preamble for HO from UTRAN the LNBTS rachAccessForHoFromUtra must be set to NonContentionBased'.
Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure perform the steps described in this procedure.
2
Activate/Configure the feature LTE57: Inter RAT handover from UTRAN. a) b) c) d)
32
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Activate handover from UTRAN (actHoFromUtran) parameter value to 1 (true).
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LTE RL60, Feature Descriptions and Instructions
3
Configure the RACH access (optional). a) b) c) d)
4
Descriptions of radio resource management and telecom features
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the RACH access for handover from UTRAN (rachAccessForHoFromUtran.) parameter value to 1 (nonContentionBased).
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected Outcome The feature LTE57: Inter RAT handover from UTRAN is configured and activated in eNB. eNB accepts and processes S1-HANDOVER REQUEST messages with handover type UTRANtoLTE.
4.1.3 Deactivating LTE57: Inter RAT handover from UTRAN Before you start The Activate handover from UTRAN (actHoFromUtran) parameter is used for deactivation. Modification of this parameter does not require eNB restart. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure perform the steps described in this procedure.
2
Deactivate the feature LTE57: Inter RAT handover from UTRAN a) b) c) d)
3
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Activate handover from UTRAN (actHoFromUtran) parameter value to 0 (false).
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected Outcome The feature LTE57: Inter RAT handover from UTRAN is deactivated.
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LTE RL60, Feature Descriptions and Instructions
4.2 LTE60: Inter RAT handover to eHRPD/3GPP2 4.2.1 Description of LTE60: Inter RAT Handover to eHRPD/3GPP2 Introduction to the feature The LTE60: Inter RAT handover to eHRPD/3GPP2 feature introduces prepared coverage-based inter-RAT handover from an LTE cell to a CDMA2000 eHRPD cell.
4.2.1.1
Benefits End-user benefits This feature reduces the service interruption time. Operator benefits The operator can deliver higher quality/less service interruption time to the customer.
4.2.1.2
Requirements Software requirements Table 6: Software requirements lists software required for this feature. Table 6
Software requirements
System release RL60
Flexi Multiradio BTS -
UE 3GPP R8 UE capabilities
Flexi Multiradio 10 BTS LBTS6.0
NetAct NetAct8 EP1
OMS -
MME -
SAE GW -
Hardware requirements There are no hardware requirements related to this feature.
4.2.1.3
Functional description The LTE to eHRPD optimized handover functionality of the Flexi Multiradio BTS allows for a service continuity of data services with minimal interruption time when changing from an LTE cell to a CDMA2000 eHRPD cell. The functionality is only applicable for multimode devices supporting both LTE and CDMA2000 eHRPD for the relevant frequency band and the relevant feature support.
g
Note: Handover to a HRPD configuration (i.e. actHOtoHrpd is 'true') is ONLY allowed when eNodeB is configured in phase sync mode( i.e. btsSyncMode is 'PhaseSync') and not as the sync hub slave (i.e. gpsCtrlBlockForCoLocatedBts is 'False' ). Pre-registration
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Descriptions of radio resource management and telecom features
The UE initiates the pre-registration to the CDMA2000 eHRPD Access. Based on a Radio Layer trigger, the UE decides to initiate a pre-registration procedure with potential target HRPD access. The pre-registration procedure allows the UE to establish and maintain a session in the target HRPD access, while attached to the E-UTRAN/MME. The eNB provides up to three operator-configurable Zone ID for the preregistration either in SIB8 for RRC Idle UEs, or in the measurement configuration IE for RRC Connected UEs. The three Zone IDs (Primary Zone ID and two Secondary Zone IDs) are operatorconfigurable per cell. The same Zone IDs are applied for SIB 8 and the measurement configuration. However, different preRegistrationAllowed flags can be configured for SIB8 and the measurement configuration. The eNB supports the following messages for the pre-registration: • • • •
the RRC:ULInformationTransfer message the RRC:DLInformationTransfer message are supported between the UE and the eNB. the S1AP:DownlinkS1CDMA2000Tunneling message and the S1AP:UplinkS1CDMA2000Tunneling are supported between the eNB and the MME.
The eNB adds during the pre-registration procedure a CDMA2000 Sector ID to the S1AP:UplinkS1CDMA2000Tunneling message. The sector ID for the pre-registration is selected with a weighted round robin mechanism out of an operator- configurable pool of sector IDs. Handover trigger The handover is a network controlled handover with support of the UE. The following measurement events are used: • • •
A1 - deactivate IRAT/IF measurements (RSRP) A2 - activate IRAT eHRPD measurements (RSRP) B2 - IRAT eHRPD measurements
The operator-configurable measurements events A2 and A1 are used to start and stop IRAT measurements. The UE capabilities are considered for the IRAT measurements, for example UE support of measurement gaps and UE support of the target cell frequency band. The measurement gap gp0 is used. The target cells for the IRAT measurements are operator- configurable. The operator can select whether cells are considered for IRAT measurement or not. A target cell load balancing between different frequency layers is applied for the initial target frequency considering operator-configurable weights. The selection valid as long as the UE is RRC CONNECTED in the same cell. The B2 measurement configuration of the source cell thresholds (RSRP), target cell threshold (pilotStrength), hysteresis (specific to eHRPD), time to trigger (specific to eHRPD) and speed dependent scaling are operator- configurable on a per eHRPD carrier basis. Handover
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LTE RL60, Feature Descriptions and Instructions
The Flexi Multiradio BTS initiates the optimized eHRPD handover after receiving a B2 measurement report from the UE. A handover will be triggered if no QCI 1 bearer nor an emmergency session are on the UE. Upon receiving a B2 measurement report, the eNB takes the first target cell indicated by the UE measurements for the handover to eHRPD. The handover comprises of the following steps: 1. A RRC:HandoverFromEUTRAPreparationRequest message is sent to the selected UE. 2. The content of the response message from the UE (RRC:ULHandoverPreparationTransfer) is forwarded with the S1AP:UplinkS1CDMA2000Tunneling message via the MME to the CDMA2000 HRPD Access. The CDMA2000 Sector ID is set to the first target indicated by the UE measurement report. The S1AP:UplinkS1CDMA2000Tunneling message also contains the EUTRAN Round Trip Delay Estimation IE. 3. The CDMA2000 HRPD Access provides the responses via the S1AP:DownlinkS1CDMA2000Tunneling message. 4. The eNB sends, in case of a positive handover preparation response, a RRC:MobilityFromEUTRA message to the UE. The UE leaves LTE and starts to establish a traffic channel to CDMA2000 HRPD Access. 5. The eNB receives in case of a successful handover a S1AP:UEContextReleaseCommand message. The handover functionality can be enabled or disabled per eNB by OAM settings.
4.2.1.4
System impact Interdependencies between features This feature requires the support of GPS time retrieval, i.e. handover to a HRPD is only allowed when SIB8 CDMA system time is broadcasted, which is only possible when eNodeB is in phase sync mode and GPS time is available. As a result, Handover to a HRPD configuration (i.e.actHOtoHrpd is 'true') is ONLY allowed when eNodeB is configured in phase sync mode( i.e. btsSyncMode is 'PhaseSync') and not as the sync hub slave (i.e.gpsCtrlBlockForCoLocatedBts is 'False' ). And the following features need to be enabled: •
LTE870: Idle Mode Mobility from LTE to CDMA/eHRPD
The following features cannot be enabled in parallel with this functionality: • • • • • • •
LTE56: Inter RAT Handover to WCDMA LTE872: SRVCC to WCDMA LTE873: SRVCC to GSM LTE442: Network Assisted Cell Change to GSM LTE736: CS Fallback to UTRAN LTE898: TDD inter-RAT Handover to TD-SCDMA LTE908: ANR Inter-RAT UTRAN - Fully UE Based
Impact on interfaces S1 - Interface The following messages are new:
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Descriptions of radio resource management and telecom features
Downlink S1 CDMA2000 Tunneling Uplink S1 CDMA2000 Tunneling
RRC - Interface The following messages are new: • •
HandoverFromEUTRAPreparationRequest(CDMA2000) ULHandoverPreparationTransfer(CDMA2000)
The following messages have new content: • • •
DLInformationTransfer -> support of PDU-Type "dedicatedInfoCDMA2000-eHRPD" ULInformationTransfer -> support of PDU-Type "dedicatedInfoCDMA2000-eHRPD" MobilityFromEUTRACommand -> support of targetRAT-Type "cdma2000-eHRPD"
Impact on network and network element management tools Interface to Netact The following parameters are added: • • •
preregistation parameters for SIB8 A2-threshold for eHRPD in LNCEL supervision timer(s) in LNBTS
The following managed object classes (MOCS) are added • • •
eHRPD-specific measurement objects below LNCEL: CDFIM eHRPD neighbour cell Object below LNBTS: LNADJX eHRPD neighbour relation Object below LNCEL: LNNEIH
Impact on system performance and capacity This feature has following impact on the system performance: • • •
Service Interrupt Time (UP & CP): Interruption Time will be dominated by the target RAT and might therefore deviate from other known IRAT service interruption times. Handover Success Rate: Decreased, because of longer IRAT HO preparation time. Single User Throughput: Reduced LTE throughput due to measurement gap. TCP throughput/loss impact because of lack of data forwarding during HO. eHRPD throughput on target is not dependent on LTE60: Inter RAT Handover to eHRPD/3GPP2.
There is no impact on capacity.
4.2.1.5
LTE60: Inter RAT handover to eHRPD/3GPP2 management data Alarms There are no alarms related to this feature. Measurements and counters The following measurement is new in the LTE60: Inter RAT handover to eHRPD/3GPP2 feature:
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Table 7
LTE RL60, Feature Descriptions and Instructions
Measurements
Measurement ID
Measurement Name
8025
LTE Handover to eHRPD per eHRPD bandclass
Measurement Description
target MO
The measurement LTE Handover to eHRPD per eHRPD bandclass contains counters which measure the Inter System Handover to eHRPD per eHRPD bandclass. For each handover relationship between the LTE cell (source of the inter system handover) and the eHRPD bandclass (target of the inter system handover) a separate counter is provided.
Handover relationship between LNCEL and eHRPD bandclass
Measured Object (MO) Descriptor (eNB) LNCEL/eHR PD bandclass
The following counters are new (belong to the measurement above) Table 8 PI ID
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Counters Network element name
NetAct name
M8025C0
Inter System Handover preparations to eHRPD per eHRPD bandclass
ISYS_HO_EHRPD_PREP_BC
M8025C1
Failed Inter System Handover preparations to eHRPD caused by expiration of guarding timer TUlHoPrepTransferHrpd per eHRPD bandclass
ISYS_HO_EHRPD_PREP_FAIL1_ BC
M8025C2
Failed Inter System Handover preparations to eHRPD caused by expiration of guarding timer TC2KRelocPrepHrpd per eHRPD bandclass
ISYS_HO_EHRPD_PREP_FAIL2_ BC
M8025C3
Failed Inter System Handover preparations to eHRPD caused by received HO Failure indication message per eHRPD bandclass
ISYS_HO_EHRPD_PREP_FAIL3_ BC
M8025C4
Successful Inter System Handover preparations to eHRPD per eHRPD bandclass
ISYS_HO_EHRPD_PREP_SUCC_ BC
M8025C5
Inter System Handover attempts to eHRPD per eHRPD bandclass
ISYS_HO_EHRPD_ATT_BC
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Table 8
Descriptions of radio resource management and telecom features
Counters (Cont.)
PI ID
Network element name
NetAct name
M8025C6
Failed Inter System Handover attempts to eHRPD caused by expiration of guarding timer TC2KRelocOverallHRPD per eHRPD bandclass
ISYS_HO_EHRPD_FAIL_TIM_BC
M8025C7
Successful Inter System Handover completions to eHRPD per eHRPD bandclass
ISYS_HO_EHRPD_SUCC_BC
Key performance indicators There are no key performance indicators related to this feature. Parameters The following parameters are new: Table 9
Parameters
Full name
Abbreviated name
Managed object
Structure
HRPD pre-registration info
hoRegParamHrpd
CDFIM
HRPD pre-registration allowed
hrpdPreRegAllowed
CDFIM
hoRegParamHrpd
HRPD pre-registration zone ID
hrpdPreRegZoneId
CDFIM
hoRegParamHrpd
HRPD secondary preregistration Zone ID1
hrpdSecPreRegZoneI d1
CDFIM
hoRegParamHrpd
HRPD secondary preregistration Zone ID2
hrpdSecPreRegZoneI d2
CDFIM
hoRegParamHrpd
CDMA2000 HRPD neighbor cell list
hrpdNCList
CDFIM
CDMA2000 HRPD frequency
hrpdArfcn
CDFIM
hrpdNCList
CDMA2000 HRPD Band Class
hrpdBdCl
CDFIM
hrpdNCList
CDMA2000 HRPD band class
hrpdBdClNcl
CDFIM
hrpdNCList
CDMA2000 HRPD physical cell identity
hrpdCellId
CDFIM
hrpdNCList
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Table 9
LTE RL60, Feature Descriptions and Instructions
Parameters (Cont.)
Full name
Abbreviated name
Managed object
Structure
CDMA2000 HRPD NCL extension selector
hrpdExSel
CDFIM
hrpdNCList
CDMA2000 1xRTT neighbor cell list
rttNCList
CDFIM
CDMA2000 1xRTT frequency
rttArfcn
CDFIM
rttNCList
CDMA2000 1xRTT band class (NCL)
rttBdClNcl
CDFIM
rttNCList
CDMA2000 1xRTT physical cell identity
rttCellId
CDFIM
rttNCList
CDMA2000 1xRTT NCL extension selector
rttExSel
CDFIM
rttNCList
Activate handover from LTE to eHRPD
actHOtoHrpd
LNBTS
Time to Trigger for A2 a2TimeToTriggerActHr LNCEL to activate C2K-HRPD pdMeas Measurement
40
eHRPD sector-ID list for pre-registration
eHrpdSectList
LNCEL
Loadbalancing factor for pre-registration with eHRPD
preRegLoadBalFactor
LNCEL
eHrpdSectList
SectorID of eHRPD access network
sectorID
LNCEL
eHrpdSectList
HRPD Timers
hrpdTimers
LNCEL
CDMA2000 HRPD Handover Relocation Execution Timer
tC2KRelocOverallHrpd LNCEL
hrpdTimers
CDMA2000 HRPD Handover Relocation Preparation Timer
tC2KRelocPrepHrpd
LNCEL
hrpdTimers
CDMA2000 HRPD UL Handover Preparation Transfer Timer
tUlHoPrepTransferHrp d
LNCEL
hrpdTimers
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Table 9
Parameters (Cont.)
Full name
4.2.1.6
Descriptions of radio resource management and telecom features
Abbreviated name
Managed object
Related Hysteresis of Threshold2 C2KHRPD for RSRP
hysThreshold2Hrpd
LNCEL
Threshold Th2 CDMA2000-HRPD for RSRP
threshold2Hrpd
LNCEL
Threshold th2a for RSRP
threshold2a
LNCEL
Structure
Sales information Table 10
Sales information BSW/ASW
ASW
License control in network element SW Asset Monitoring
License control attributes -
4.2.2 Activating LTE60: Inter RAT handover to eHRPD/3GPP2 Before you start Table 11
Parameters used for activating and configuring LTE60: Inter RAT handover to eHRPD/3GPP2
Parameter
Purpose
Requires eNB restart or object locking
Activate handover from LTE to eHRPD(actHOtoHrpd)
activation flag
no restart required
Activation idle mode mobility CDMA/eHRPD (actImmHRPD)
mandatory configuration
no restart required
Activate eNACC to GSM(acteNACCtoGSM)
mandatory configuration
Activate handover from LTE to WCDMA((actHotoWCDM A)
mandatory configuration
Activate SRVCC to GSM(actSrvccToGsm)
mandatory configuration
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Activates LTE870: Idle mode mobility from LTE to CDMA/eHRPD. no restart required
Deactivates LTE442: Network Assisted Cell Change from LTE to GSM. no restart required
Deactivates LTE56: Inter RAT handover to WCDMA. no restart required
Deactivates LTE873:SRVCC from LTE to GSM.
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Descriptions of radio resource management and telecom features
Table 11
LTE RL60, Feature Descriptions and Instructions
Parameters used for activating and configuring LTE60: Inter RAT handover to eHRPD/3GPP2 (Cont.)
Parameter
Purpose
Activate UE-based ANR for UTRAN(actUeBasedAn rUtran)
mandatory configuration
eHRPD sector-ID list for preregistration (eHrpdSectList)
mandatory configuration
HRPD preregistration info(hoRegParamHrp d)
mandatory configuration
Related Hysteresis of Threshold2 C2KHRPD for RSRP(hysThreshold2 Hrpd)
mandatory configuration
Requires eNB restart or object locking no restart required
Deactivates LTE908: ANR Inter-RAT UTRAN - Fully UE Based. no restart required
This structure contains a list of eHRPD Sector-IDs which are used to address eHRPD-AN when tunneling cdma2000 HRPD PDU for Pre-Registration with eHRPD. Each Sector-ID is associated with a loadbalancing factor to allow loadbalancing between multiple eHRPD-AN. no restart required
This structure contains parameters associated with eHRPD Preregistration used in SIB8. no restart required
This parameter describes the related hysteresis of threshold for RSRP of serving cell for start of CDMA2000-eHRPD measurements. It must be configured in all LNCEL instances.
HRPD Timers(hrpdTimers)
mandatory configuration
no restart required
Defines the timers used to control mobility to CDMA2000 HRPD. It must be configured in all LNCEL instances.
Threshold Th2 CDMA2000-HRPD for RSRP (threshold2Hrpd)
mandatory configuration
no restart required
This parameter describes the Threshold for RSRP of serving cell for start of CDMA2000-eHRPD measurements . It must be configured in all LNCEL instances.
Time to Trigger mandatory configuration for A2 to activate C2K-HRPD Measurement (a2TimeToTriggerAc tHrpdMeas)
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Table 11
Descriptions of radio resource management and telecom features
Parameters used for activating and configuring LTE60: Inter RAT handover to eHRPD/3GPP2 (Cont.)
Parameter
Purpose
Requires eNB restart or object locking
This is the time during which specific RSRP criteria for the event A2 needs to be met to trigger a measurement report. It must be configured in all LNCEL instances. Mandatory configuration
BTS restart needed
GPS control Mandatory configuration interface blocked for co-located BTS ( gpsCtrlBlockForCoL ocatedBts)
BTS restart needed
Network synchronization mode (btsSyncMode)
The LTE870: Idle Mode Mobility from LTE to CDMA/eHRPD feature needs to be activated before activation of LTE60: Inter RAT handover to eHRPD/3GPP2 . The following features need to be deactivated before activation of LTE60: Inter RAT handover to eHRPD/3GPP2 • • • •
LTE56: Inter RAT Handover to WCDMA LTE442: Network Assisted Cell Change to GSM LTE873: SRVCC to GSM LTE908: ANR Inter-RAT UTRAN - Fully UE based
•
Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure perform the steps described in this procedure.
2
Activate/Deactivate related features to LTE60: Inter RAT handover to eHRPD/3GPP2. a) b) c) d)
DN09185955 Issue: 01J
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNTBS object. Set the Activation idle mode mobility CDMA/eHRPD (actImmHRPD) parameter value to true.
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Descriptions of radio resource management and telecom features
LTE RL60, Feature Descriptions and Instructions
e) Set the Activate eNACC to false. f) Set the Activate SRVCC to false. g) Set the Activate handover parameter value to false. h) Set the Activate UE-based parameter value to false.
3
GSM (acteNACCtoGSM) parameter value to GSM (actSrvccToGsm) parameter value to from LTE to WCDMA (actHotoWCDMA) ANR for UTRAN ( actUeBasedAnrUtran)
Activate/Configure the feature LTE60: Inter RAT handover to eHRPD/3GPP2. a) b) c) d) e) f)
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNTBS object. Create at least one LNCEL instance Set hrpdTimers structure in all configured LNCEL instances. Set Related hysteresis of threshold C2K - HRPD for RSRP (hysThreshold2HRPD) parameter in all configured LNCEL instances. g) Set Threshold Th2 CDMA2000-HRPD for RSRP (threshold2Hrpd) parameter in all configured LNCEL instances. h) Set eHrpdSectListstructure in all configured LNCEL instances. i) Set Time to Trigger for A2 to activate C2K - HRPD measurements ( a2TimeToTriggerActHrpdMeas) parameter in all configured LNCEL instances. j) Set the System information scheduling list (sibSchedulingList) structure in all configured LNCEL instances. 1. Set the periodicity ( siMessagePeriodicity) parameter. 2. Set the siMessageSibType ( siMessageSibType ) parameter value to SIB8. k) Create CDFIM instance in at least one LNCEL instance. l) Set the HRPD pre-registration Info (hoRegParamHrpd) structure in all configured CDFIM instances. 1. The HRPD pre-registration allowed (hrpdPreRegAllowed ) parameter needs to be set as true. 2. Configure the CDMA2000 HRPD band class list (hrpdBdCIList ) and the CDMA2000 HRPD neighbor cell list (hrpdNCList): the band class numbers must be supported by the UE. m) Create at least one LNHOH instance. n) Create at least one LNNEIH instance. 1. LNHOH/hrpdCarrierFreq/hrpdArfcn and
LNHOH/hrpdCarrierFreq/hrpdBandClass must be the same as the related parameters from CDFIM instance CDFIM/hrpdNCList/hrpdArfcn and CDFIM/hrpdNCList/hrpdBdClNcl and must be the same as the related parameters from LNNEIH instance LNNEIH/hrpdArfcn and LNNEIH/hrpdBandClass.
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LTE RL60, Feature Descriptions and Instructions
Descriptions of radio resource management and telecom features
2. Set the PS handover allowed psHoAllowed to allowed. 3. LNNEIH/hrpdSectorId must be the same as the related parameter LNCEL/eHRPDSectList/sectorID. o) Create at least one LNADJL instance. p) Create at least one LNHOIF instance. 1. LNADJL/fDIEarfcn must be the same as the related parameter from LNHOIF instance LNHOIF/eutraCarrierInfo. q) Set the Activate handover from LTE to eHRPD (actHotoHrpd ) parameter value to true.
g
4
Note: Handover to a HRPD configuration (i.e.actHOtoHrpd is 'true') is ONLY allowed when eNodeB is configured in phase sync mode( i.e. btsSyncMode is 'PhaseSync') and not as the sync hub slave (i.e.gpsCtrlBlockForCoLocatedBts is 'False' )
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
4.2.3 Deactivating LTE60: Inter RAT handover to eHRPD/3GPP2 Before you start The Activate handover from LTE to eHRPD(actHOtoHrpd) is used for deactivation. Modification of this parameter does not require a restart. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure perform the steps described in this procedure.
2
Deactivate the feature: LTE60: Inter RAT handover to eHRPD/3GPP2 a) b) c) d)
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Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Activate handover from LTE to eHRPD (actHOtoHrpd) parameter value to false.
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LTE RL60, Feature Descriptions and Instructions
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
4.3 LTE498: RAN Information Management for GSM 4.3.1 Description of LTE498: RAN Information for GSM Introduction to the feature The LTE498: RAN Information for GSM feature allows the transfer of information between the source and target cell via the core network. This mechanism allows for a reduction of parameter setting.
4.3.1.1
Benefits End-user benefits During the following procedures: • • •
CSFB NACC normal redirection
to Global System for Mobile Communications (GSM), the GSM system information message is included in the RRCConnectionRelease and MobilityFromEutranCommand messages. This feature reduces the time the UE uses to access the GSM network because the UE does not need to read the system information from GSM. Operator benefits This feature provides the operator with the following benefits: •
4.3.1.2
reducing the number of parameters needed to configure the network assisted cell change or the RRC connection release with redirect and SIB
Requirements Software requirements Table 12: Software requirements lists software required for this feature. Table 12
Software requirements
System release RL60
Flexi Multiradio BTS LBTS6.0
UE 3GPP R8 UE capabilities
Flexi Multiradio 10 BTS LBTS6.0
NetAct NetAct8 EP1
OMS -
MME -
SAE GW -
Hardware requirements This feature requires no new or additional hardware.
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4.3.1.3
Descriptions of radio resource management and telecom features
Functional description Generic RAN Information Management (RIM) procedures support the exchange of information via the core network, between peer application entities located in the access networks. The LTE498: RAN Information Management for GSM feature introduces the RIM for GSM functionality to transfer up-to-date System Information of GERAN neighbor cells from a remote base station controller (BSC) to a local eNB, which are used to populate GERAN System Information for eNACC procedure and redirection to GSM procedure, see Figure 3: RIM protocol structure between E-UTRAN and GERAN Figure 3
RIM protocol structure between E-UTRAN and GERAN
eNB (controlling)
RIM Container
S1
S3/Gn
MME
BSC (serving)
Gb
SGSN
RIM-App
RIM-App
RIM
RIM-App
RIM-App
RIM-App
RIM-App
RIMPDUs
(forexample,NACC)
(forexample,NACC)
RIM Container
RIM
RIMPDUs
Relay
Relay
S1AP
S1AP
SCTP
SCTP
IP/L2andL1
IP/L2andL1
GTP-C
GTP-C
UDP
UDP
IP
IP
L2
L2
L1
L1
BSSGP
BSSGP
NS
NS
L1
L1
The RAN information management (RIM) function enables the eNB to retrieve system information (SI1, SI3, and SI13) from a target GSM cell. The eNB acts always as a controller. The systemInfoListGeran optional parameter contains SI that is manually entered. The systemInfoType parameter, set by the operator, indicates which type of GERAN System Information (if any) is included in the RRC MOBILITYFROMEUTRANCOMMAND message. The systemInfoType and systemInfoListGeran parameters become meaningless under the same conditions, that is: • • •
if the LTE498: RAN Information Management for GSM feature is activated and the PLMN of the cell is not blacklisted for RIM and the gTargetRac parameter is configured
The following RIM procedures are supported: • •
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RAN Information Request/Multiple Report procedure RAN Information Request/Stop procedure
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• • •
LTE RL60, Feature Descriptions and Instructions
RAN Information Send procedure RAN Information Application Error procedure RAN Information Error procedure
The LTE498: RAN Information Management for GSM feature allows the eNB to receive GERAN SIB information from BSC without the need for configuration of GERAN SIBs by the operator. The received GERAN SIBs are used during eNACC to GSM (the LTE442: Network Assisted Cell Change to GSM feature), and during enhanced UE Context Release with Redirect to GSM for CS fallback and/or the "normal" redirect (the LTE984: GSM Redirect with System Information feature). Support of Direct Information Transfer via S1 interface To transmit RIM information between the eNB and the MME, two following procedures are supported: • •
the eNB Direct Information Transfer procedure to transmit an information container from the eNB to the MME the MME Direct Information Transfer procedure to transmit an information container from the MME to the eNB
Blacklisting GSM PLMNs for RIM In case of multi-operator configurations, the RIM might not be supported by all GSM networks. It is possible to blacklist the GSM PLMNs to avoid periodical attempts to establish RIM associations. The Blacklisted GSM PLMNs for RIM (blacklistedGsmPlmnsForRim) parameter allows blacklisting of RIM for all GERAN neighbor cells belonging to one of the configured PLMNs. If the blacklistedGsmPlmnsForRim parameter is omitted, the RIM applies for all GERAN neighbor cells of the eNB. RIM interface status The RIM interface status (rimStatus) parameter provides the status of the RIM association to a serving base station system (BSS). This parameter can have the values as follows: •
disabled The GERAN neighbor cell is not RIM enabled. With the rimStatus=disabled, one of the following options happens: – – –
•
•
4.3.1.4
The LTE498: RAN Information Management for GSM feature is not activated. The PLMN of the GERAN cell is blacklisted for RIM. No RAC value is configured.
unavailable The GERAN neighbor cell is RIM-enabled but no valid system information from the RIM procedure is available. available The GERAN neighbor cell is RIM-enabled and a valid system information from the RIM procedure is available.
System impact Interdependencies between features
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Activation of the LTE498: RAN Information Management for GSM feature is reasonable if at least one of the features: the LTE442: Network Assisted Cell Change to GSM or the LTE984: GSM Redirect with System Information is activated. LTE442: Network Assisted Cell Change to GSM When both features: the LTE498: RAN Information Management for GSM and the LTE442: Network Assisted Cell Change to GSM are activated, then eNACC to GERAN procedure is populated with up-to-date system information acquired by RIM procedure. LTE984: GSM Redirect with System Information When both features: the LTE498: RAN Information Management for GSM and the LTE984: GSM Redirect with System Information are activated, then GSM redirection procedure is populated with up-to-date system information acquired by RIM procedure.
•
•
Impact on interfaces This feature impacts: the RRC protocol in the LTE-Uu interface the S1AP protocol in the S1-MME interface
• •
Impact on network and network element management tools This feature has no impact on network management or network element management tools. Impact on system performance and capacity This feature has no impact on system performance or capacity.
4.3.1.5
Management data Alarms Table 13: Modified alarms lists existing alarms related to this feature. Table 13
Modified alarms Alarm ID
7657
Alarm name BASE STATION CONNECTIVITY DEGRADED The alarm is caused by the following BTS faults: •
RIM interface timeout
•
RIM interface error
If an RIM association to a GERAN neighbor cell cannot be established after several attempts or if a RAN INFORMATION ERROR PDU is received or if an application error is detected in Application Container IE of RAN INFORMATION PDU or if Application Error Container IE is included in RAN INFORMATION PDU, the RIM interface timeout or RIM interface error fault is reported. Only one fault can be reported per GERAN public land mobile network (PLMN). This avoids alarm floods and reporting of several alarms for the same root cause. The raised alarm remains active as long as there is an active fault for the PLMN even if the fault for
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the cell, whose routing area code (RAC) and cell global identification (CGI) are reported in the alarm, has been cleared. Updating of alarm information is not required (a risk for message floods). The RIM alarms do not suppress BASE STATION CONNECTIVITY DEGRADED alarms that are raised because of S1 and/or X2 interface failures. Measurements and counters There are no measurements and counters related to this feature. Key performance indicators There are no key performance indicators related to this feature. Parameters Table 14: New parameters lists parameters introduced with this feature. Table 14
New parameters
Full name
Abbreviated name
Managed object
Structure
RAC GERAN
gTargetRac
LNADJG
RIM interface status
rimStatus
LNADJG
Activate RAN Information Management for GSM
actRIMforGSM
LNBTS
Blacklisted GSM PLMNs for RIM
blacklistedGsmPlmnsF LNBTS orRim
MCC
mcc
LNBTS
blacklistedGsmPlmnsF orRim
MNC
mnc
LNBTS
blacklistedGsmPlmnsF orRim
MNC length
mncLength
LNBTS
blacklistedGsmPlmnsF orRim
Maximum RIR attempts to GERAN
nRimRirG
LNBTS
Timer to wait for next RI PDU from GERAN
tRimKaG
LNBTS
Polling timer to ReStart RIR Procedure to GERAN
tRimPollG
LNBTS
Timer to wait for RIR Response from GERAN
tRimRirG
LNBTS
Table 15: Related parameters lists existing parameters related with the feature. Table 15
Related parameters
Name System info list GERAN
50
Abbreviation systemInfoListGeran
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Managed object LNADJG
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Table 15
Descriptions of radio resource management and telecom features
Related parameters (Cont.)
Name
Abbreviation
System information type
4.3.1.6
systemInfoType
Managed object LNADJG
Sales information Table 16
Sales information
BSW/ASW ASW
License control in network element SW Asset Monitoring
License control attributes -
Activated by default No
4.3.2 Activating LTE498: RAN Information Management for GSM Before you start Table 17
Parameters used for activating and configuring LTE498: RAN Information Management for GSM
Parameter
Purpose
Activate RAN activation flag Information Management for GSM (actRIMforGSM) RAC GERAN (gTargetRac)
optional configuration
g
Requires eNB restart or object locking no
no
Note: If it is not configured for the GERAN target cell, RAN Information Management (RIM) will not be used.
Blacklisted GSM optional configuration PLMNs for RIM (blacklistedGsmPlm nsForRim) parameter structure
no
Maximum RIR attempts to GERAN (nRimRirG)
mandatory configuration
no
Timer to wait for next RI PDU from GERAN (tRimKaG)
mandatory configuration
no
Polling timer to mandatory configuration ReStart RIR Procedure to GERAN (tRimPollG)
no
mandatory configuration
no
Timer to wait for RIR Response from GERAN ( tRimRirG)
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Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure, perform the steps described in this procedure.
2
Activate the feature. a) b) c) d)
3
Configure the RAC GERAN. a) b) c) d) e) f)
4
Go to the Radio Network Configuration page. Expand the MRBTS object. Right-click the LNBTS object. Select New LNADJG. For the LNADJG object set all the mandatory parameters' values. Set the RAC GERAN (gTargetRac) parameter value.
Configure the parameters. a) b) c) d)
5
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Activate RAN Information Management for GSM (actRIMforGSM) parameter value to true.
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Maximum RIR attempts to GERAN (nRimRirG), Timer to wait for next RI PDU from GERAN (tRimKaG), Polling timer to ReStart RIR Procedure to GERAN (tRimPollG), Timer to wait for RIR Response from GERAN (tRimRirG) parameters’ values.
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager. Once RIM association is successfully established, the RIM interface status (rimStatus) parameter, set by the system, is changed automatically to available. If RIM association is not established, alarm will be raised and the RIM interface status (rimStatus) parameter will be changed automatically to unavailable.
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4.3.3 Deactivating LTE498: RAN Information Management for GSM Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure, perform the steps described in this procedure.
2
Deactivate the feature. a) b) c) d)
3
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Activate RAN Information Management for GSM (actRIMforGSM) parameter value to false.
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager. The RIM interface status (rimStatus) parameter, set by the system, will be changed automatically to disabled for all LNADJG’s.
4.4 LTE520: 8 EPS bearers per UE 4.4.1 Description of LTE520: 8 EPS bearers per UE Introduction to the feature The LTE520: 8 EPS bearers per UE feature establishes up to eight EPS bearers per UE.
4.4.1.1
Benefits End-user benefits This feature does not affect the end-user experience. Operator benefits This feature offers an always-on service with multiple concurrent sessions.
4.4.1.2
Requirements Software requirements Table 18: Software requirements lists the software required for this feature.
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Table 18
LTE RL60, Feature Descriptions and Instructions
Software requirements
System release RL60
Flexi Multiradio BTS LBTS6.0
UE 3GPP R8 UE capabilities
Flexi Multiradio 10 BTS LBTS6.0
NetAct NetAct8 EP1
OMS -
MME -
SAE GW -
Hardware requirements This feature requires no new or additional hardware.
4.4.1.3
Functional description The Flexi Multiradio BTS supports up to eight EPS bearers for multiple-bearer-capable UEs. The UE indicates its capabilities with a feature bit in the UE capabilities. The Flexi Multiradio BTS supports the following radio bearer combinations per UE: • • • • • •
SRB1 + SRB2 + 6 x AM DRB SRB1 + SRB2 + 7 x AM DRB SRB1 + SRB2 + 8 x AM DRB SRB1 + SRB2 + 4 x AM DRB + 3 UM DRB SRB1 + SRB2 + 5 x AM DRB + 2 x UM DRB SRB1 + SRB2 + 5 x AM DRB + 3 x UM DRB
Multiple data radio bearers (DRB) can be either multiple default EPS bearers or a combination of default and dedicated EPS bearers. The Flexi Multiradio BTS provides checks for the total number of DRB per cell and maximum possible number of DRB per UE. For the Intra-LTE handovers, it applies the all-or-nothing approach and supports the following scenarios: • • • •
establish individual EPS bearers release individual EPS bearers add multiple EPS bearers to existing EPS bearers release multiple EPS bearers from existing EPS bearers
Various EPS bearers per UE can have the same or a different QCI. The downlink scheduler provides prioritization among multiple non-GBR EPS bearers and provides means to avoid starvation of downlink traffic. The support of up to eight EPS bearers is requested to use the emergency calls when six EPS bearers are active, since eNB does not fully support pre-emption of one of the six EPS bearers.
4.4.1.4
System impact Interdependencies between features The following features have to be enabled:
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LTE7: Support of Multiple EPS bearer LTE534: ARP Based Admission Control LTE496: Support of QCI 2, 3 and 4 LTE497: Smart Admission Control
• • • •
The following features are suggested to be enabled: LTE10: EPS bearers for conversational voice To support the IMS conversational voice. LTE587: Multiple GBR EPS Bearers per UE To support the multiple UM DRBs.
• •
Impact on interfaces This feature has no impact on interfaces. Impact on network and network element management tools This feature has no impact on network management or network element management tools. Impact on system performance and capacity This feature has no impact on system performance or capacity.
4.4.1.5
LTE520: 8 EPS bearers per UE management data Alarms There are no alarms related to this feature. Measurements and counters There are no measurements or counters related to this feature. Key performance indicators There are no key performance indicators related to this feature. Parameters There are no parameters related to this feature.
4.4.1.6
Sales information Table 19
Sales information
BSW/ASW ASW
License control in network element SW Asset Monitoring
License control attributes -
Activated by default No
4.4.2 Activating and configuring LTE520: 8 EPS bearers per UE Before you start The Activate Support of 8 EPS Bearers (act8EpsBearers) parameter is used for activation. Modification of this parameter requires object locking.
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The following features need to be activated and configured before activation of LTE520: 8 EPS bearers per UE: • • • •
LTE7: Support of Multiple EPS bearer LTE496: Support of QCI 2, 3 and 4 LTE497: Smart Admission Control LTE534: ARP Based Admission Control
Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure, perform the steps described in this procedure.
2
Activate the LTE520: 8 EPS bearers per UE feature. a) b) c) d)
3
Cells locking. a) b) c) d) e)
g
Go to the Radio Network Configuration page. Expand the MRBTS object. Expand the LNBTS object. Select the LNCEL object. Set the Administrative state (administrativeState) parameter value to locked for all cells configured in eNB. Note: In case the LTE914: Graceful cell shut down feature is active, set the Administrative state (administrativeState) parameter value to shutting down for all cells configured in eNB.
4
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
5
Cells unlocking. a) b) c) d)
56
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Activate Support of 8 EPS Bearers ( act8EpsBearers) parameter value to true.
Go to the Radio Network Configuration page. Expand the MRBTS object. Expand the LNBTS object. Select the LNCEL object.
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e) Set the Administrative state (administrativeState) parameter value to unlocked for all cells configured in eNB.
6
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected Outcome Feature LTE520: 8 EPS bearers per UE has been activated and up to eight EPS bearers can be established per UE.
4.4.3 Deactivating LTE520: 8 EPS bearers per UE Before you start The Activate Support of 8 EPS Bearers (act8EpsBearers) parameter is used for deactivation. Modification of this parameter requires object locking. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure, perform the steps described in this procedure.
2
Deactivate the LTE520: 8 EPS bearers per UE feature. a) b) c) d)
3
Cells locking a) b) c) d) e)
g
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Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Activate Support of 8 EPS Bearers ( act8EpsBearers) parameter value to false.
Go to the Radio Network Configuration page. Expand the MRBTS object. Expand the LNBTS object. Select the LNCEL object. Set the Administrative state (administrativeState) parameter value to locked for all cells configured in eNB. Note: In case the LTE914: Graceful cell shut down feature is active, set the Administrative state (administrativeState) parameter value to shutting down for all cells configured in eNB.
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4
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
5
Cells unlocking a) b) c) d) e)
6
Go to the Radio Network Configuration page. Expand the MRBTS object. Expand the LNBTS object. Select the LNCEL object. Set the Administrative state (administrativeState) parameter value to unlocked for all cells configured in eNB.
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected Outcome Feature LTE520: 8 EPS bearers per UE has been deactivated.
4.5 LTE801: Group hopping for UL reference signal 4.5.1 Description of LTE801: Group hopping for UL reference signal Introduction to the feature The LTE801: Group hopping for UL reference signal randomizes the base sequence for the uplink (UL) demodulation reference signal of the physical uplink shared channel (PUSCH) and the physical uplink control channel (PUCCH), as well as the base sequence for sounding reference signal (SRS) on a per slot basis.
4.5.1.1
Benefits End-user benefits The end-user benefits from reduced crosstalk between cells, which may result to improvements in the UL and DL performance of the network. This is only if the planning for the UL demodulation reference signal in the network is not optimal. Otherwise, the end-user experience will be similar if careful network planning is done. Operator benefits This feature does not require reference signal planning or configuration.
4.5.1.2
Requirements Software requirements Table 20: Software requirements lists the software required for this feature.
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Table 20
Descriptions of radio resource management and telecom features
Software requirements
System release RL60
Flexi Multiradio BTS LBTS6.0
UE 3GPP R8 mandatory
Flexi Multiradio 10 BTS LBTS6.0
NetAct NetAct8 EP1
OMS -
MME -
SAE GW -
Hardware requirements This feature requires no new or additional hardware.
4.5.1.3
Functional description With the LTE801: Group hopping for UL reference signal activated, the base sequence for the UL demodulation reference signal for PUSCH and PUCCH, as well as the base sequence for SRS are changed randomly. The random pattern changes with the underlying physical cell ID so that each physical cell ID gives a unique group pattern within the radio frame. Applying group hopping, the cell planning of the UL reference signal is unnecessary since the crosstalk of the sequence is on a very small level and averaged across the network. The UEs are informed via the SIB2 broadcast message whenever group hopping in a cell is enabled/disabled. The parameter actUlGrpHop is used to activate this feature.
g 4.5.1.4
Note: The actual value of the parameter grpAssigPusch for the UL demodulation reference signal for PUSCH does not matter in network planning because of the overlaying UL group hopping pattern.
System impact Interdependencies between features There are no interdependencies between this and any other feature. Impact on interfaces This feature has no impact on interfaces (but reference signal hopping is visible on Uu). Impact on network and network element management tools If this feature is activated in the radio access network (RAN), planning of the UL demodulation reference signal is unnecessary. Impact on system performance and capacity This feature brings performance improvement for the PUSCH, PUCCH, and SRS if planning for the UL demodulation reference signal in the network is not optimal. The downlink (DL) performance may be impacted if, for example, the ACK/NACK in UL is improved.
4.5.1.5
LTE801: Group hopping for UL reference signal management data For information on alarm, counter, key performance indicator, and parameter documents, see Reference documentation. Alarms
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There are no alarms related to this feature. Measurements and counters There are no measurements or counters related to this feature. Key performance indicators There are no key performance indicators related to this feature. Parameters Table 21: New parameter lists the parameter introduced with this feature. Table 21
New parameter Full name
Abbreviated name
Activation of uplink group hopping
4.5.1.6
actUlGrpHop
Managed object LNCEL
Sales information Table 22
Sales information BSW/ASW
License control in network element
ASW
SW Asset Monitoring
Activated by default No
4.5.2 Activating and configuring LTE801: Group hopping for UL reference signal Before you start Restart of the eNB is not required after activation of this feature. The Activation of uplink group hopping (actUlGrpHop) parameter is used to activate the feature. Modification of this parameter requires object locking. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure, perform the steps described in this procedure.
2
Set the activation flag. a) b) c) d)
60
Go to the Radio Network Configuration page. Expand the MRBTS object. Expand the LNBTS object. Select the LNCEL object corresponding to the cell where the LTE801: Group hopping for UL reference signal feature will be activated.
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e) Set the Activation of uplink group hopping (actUlGrpHop) parameter value to true.
g
Note: This parameter activates the feature.
3
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected Outcome The LTE801: Group hopping for UL reference signal feature is activated in the cell.
4.5.3 Deactivating LTE801: Group hopping for UL reference signal Before you start Restart of the eNB is not required after deactivation of this feature. The Activation of uplink group hopping (actUlGrpHop) parameter is used to deactivate the feature. Modification of this parameter requires object locking. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure, perform the steps described in this procedure.
2
Go to the Radio Network Configuration page. a) Expand the MRBTS object. b) Expand the LNBTS object. c) Select the LNCEL object corresponding to the cell where the LTE801: Group hopping for UL reference signal feature will be deactivated. d) Set the Activation of uplink group hopping (actUlGrpHop) parameter value to false.
3
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected outcome The LTE801: Group hopping for UL reference signal feature is deactivated in the cell.
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4.6 LTE874: CSFB to CDMA/1xRTT for dual RX Ues 4.6.1 Description of LTE874: CSFB to CDMA/1xRTT for dual RX Ues Introduction to the feature The LTE874: CSFB to CDMA/1xRTT for dual RX Ues feature introduces service continuity for CS voice.
4.6.1.1
Benefits End-user benefits This feature does not affect the end-user experience. Operator benefits This feature benefits the operator by redirecting call setup for voice calls
4.6.1.2
Requirements Software requirements The table lists software required for this feature. Table 23
Software requirements
System release RL60
Flexi Multiradio BTS LBTS6.0
UE 3GPP R9 UE capabilities
Flexi Multiradio 10 BTS LBTS6.0
NetAct NetAct8 EP1
OMS -
MME
SAE GW
-
-
Hardware requirements This feature requires no new or additional hardware.
4.6.1.3
Functional description The Flexi Multiradio BTS supports the RRC-release-based Circuit Switched Fallback (CSFB) to CDMA/1xRTT for dual receiver multimode UEs and for single radio UEs emulating dual receiver mode. With the feature, UE supporting dual Rx 1xCSFB stays attached to CDMA/1xRTT network to perform idle mode mobility procedures and to listen paging also while being in RRC-connected state to the LTE network. When voice call is initiated or received on CDMA/1xRTT system by the UE, the eNB releases the RRC connection to allow voice call setup on CDMA. The eNB indicates with the SIB 8 the related capabilities to the UE. The following scenarios are supported: • •
62
Mobile-originated CSFB with an Initial context setup (UE in IDLE prior to CSFB) Mobile-originated CSFB with a UE context modification (UE in RRC-connected prior to CSFB)
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• • • •
Descriptions of radio resource management and telecom features
Mobile-terminated CSFB with an Initial context setup (UE in IDLE prior to CSFB) Mobile-terminated CSFB with a UE context modification (UE in RRC-connected prior to CSFB) Mobile-originated CSFB with a UE in RRC IDLE Mobile-terminated CSFB with a UE in RRC IDLE
The MME triggers in all cases the CSFB procedure at the eNB by sending the IE CS Fallback Indicator within the S1AP:UE Context Modification Request (RRC connected cases) or Initial context setup request (RRC idle cases) message to the eNB. The eNB performs upon the CSFB trigger an RRC connection release without redirect information for UEs. There is no need for redirect information or measurements as the UE is already attached to CDMA/1xRTT. Towards MME, the eNB will send S1AP: UE context release request with cause value “Redirection towards 1xRTT” (though terminal still gets an RRC release without actual redirection). The eNB indicates within the SIB8 the capability to support dual receiver UEs. The following performance counters are supported. The following existing PM counters under LNCEL are updated: • • •
CS Fallback attempts with redirection via RRC Connection Release (M8016C11) CS Fallback attempts (UE in Connected Mode) with redirection via RRC Connection Release (M8016C12) CS Fallback attempts for emergency call reason with redirection via RRC Connection Release (M8016C13)
The following existing PM counters under LNCEL are reused: • • •
UE Context modification attempts (M8000C23) UE Context modification failures (M8000C25) UE Context modification attempts because of to CS Fallback (M8000C31)
The operator can enable/disable the functionality per cell by O&M setting. Emergency session The eNB is able to determine whether an Emergency Session is active for the feature LTE874: CSFB to CDMA/1xRTT for dual RX Ues. An Emergency Session is active for a UE if: • •
feature LTE874: CSFB to CDMA/1xRTT for dual RX Ues is activated in the eNB (actDualRx1xCsfb) AND –
–
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RRC establishment cause for this UE has been set to “emergency” AND the INITIAL UE MESSAGE has not been sent yet or Initial Context Setup Request has been received with “CS Fallback Indicator” = “CS Fallback High Priority”, RRCConnectionRelease message has not been sent yet and the Initial Context Setup Request is not rejected by the eNB. or
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Descriptions of radio resource management and telecom features
–
4.6.1.4
LTE RL60, Feature Descriptions and Instructions
UE Context Modification Request has been received with “CS Fallback Indicator” = “CS Fallback High Priority”, and RRCConnectionRelease message has not been sent yet and the UE Context Modification Request is not rejected by the eNB.
System impact Interdependencies between features The following features introduce CSFB to GERAN/UTRAN. When LTE874: CSFB to CDMA/1xRTT for dual RX Ues is active, these features need to be deactivated. • • •
LTE562: CSFB to UTRAN or GSM via redirect LTE22: Emergency call handling LTE736: CS Fallback to UTRAN
The following features have also impact to LTE874: CSFB to CDMA/1xRTT for dual RX Ues: •
LTE1441: Enhanced CS fallback to CDMA/1xRTT (e1xCSFB) LTE1441: Enhanced CS fallback to CDMA/1xRTT (e1xCSFB) could be activated parallel with LTE874: CSFB to CDMA/1xRTT for dual RX Ues, eNB will make 1xCSFB decision according to UE capability: –
–
•
•
•
•
64
in case that both LTE874: CSFB to CDMA/1xRTT for dual RX Ues and LTE1441: Enhanced CS fallback to CDMA/1xRTT (e1xCSFB) are activated, if UE have dual receiver but not support R9 e1xCSFB, then eNB will execute Dual Rx 1xCSFB option; otherwise, the R8/R9 (e)1xCSFB options defined in LTE1441: Enhanced CS fallback to CDMA/1xRTT (e1xCSFB) are attempted. in case that LTE874: CSFB to CDMA/1xRTT for dual RX Ues is deactivated but LTE1441: Enhanced CS fallback to CDMA/1xRTT (e1xCSFB) is activated, the eNB will perform the legacy R8/R9 (e)1xCSFB
LTE807: Idle mode mobility LTE to CDMA/1xRTT LTE807: Idle mode mobility LTE to CDMA/1xRTT introduces the broadcast of SIB8. LTE807: Idle mode mobility LTE to CDMA/1xRTT is not a precondition for LTE874: CSFB to CDMA/1xRTT for dual RX Ues. SIB8 broadcasting is enabled automatically if LTE874: CSFB to CDMA/1xRTT for dual RX Ues is activated LTE426: System time broadcast for SIB8 This feature introduces the CDMA system time support from the GPS timing. The CDMA system time is broadcasted together with other SIB8 parameters. Enabling of LTE874: CSFB to CDMA/1xRTT for dual RX Ues implicitly enables LTE426: System time broadcast for SIB8 automatically. LTE1074: Multimedia priority services LTE1074: Multimedia priority services feature introduces the priority-controlled admission and pre-emption of RRC connections and active UEs as well as paging priority handling. When both LTE874: CSFB to CDMA/1xRTT for dual RX Ues and LTE1074: Multimedia priority services are activated, LTE874: CSFB to CDMA/1xRTT for dual RX Ues will not have any special handling for high priority call except the case of receipt of Initial Context Setup Request/UE Context Modification Request with CS Fallback High Priority indicator, which will be treated as emergency call during 1xCSFB procedure. LTE572: IMS emergency sessions
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Descriptions of radio resource management and telecom features
LTE572: IMS emergency sessions introduces IMS emergency session. This feature could be active in parallel with LTE874: CSFB to CDMA/1xRTT for dual RX Ues. But for one specific UE, only LTE572: IMS emergency sessions or LTE874: CSFB to CDMA/1xRTT for dual RX Ues could happen. In small cell bandwidth (1.4 MHz/3 MHz) configuration, LTE874: CSFB to CDMA/1xRTT for dual RX Ues is supported while other CDMA interworking features are still not supported. • •
LTE116: Cell Bandwidth - 3 MHz LTE117: Cell Bandwidth - 1.4 MHz
These features can be activated with LTE874: CSFB to CDMA/1xRTT for dual RX Ues in parallel (no feature dependency rule is defined in eNB between these features and LTE874: CSFB to CDMA/1xRTT for dual RX Ues). • • • • •
LTE56: Inter RAT handover to WCDMA LTE442: Network Assisted Cell Change LTE898: TDD inter-RAT handover to TD-SCDMA LTE873: SRVCC to GSM LTE908: ANR Inter-RAT UTRAN - Fully UE based
For (de-)configuration of SCell RRC Connection Reconfiguration procedures are started without any eNB external triggering event. During such an RRC Reconfiguration no other RRC procedure may be performed to avoid inconsistent configuration in the UE. Therefore, RRC: RRCConnectionRelease for LTE874: CSFB to CDMA/1xRTT for dual RX Ues might have to be delayed if an SCell addition/release is ongoing. • • •
LTE1089: Downlink carrier aggregation - 20 MHz LTE1558: TDD Downlink carrier aggregation LTE1830: TDD downlink carrier aggregation enhancement
Impact on interfaces This feature impacts interfaces as follows: •
S1–Interface –
•
S1AP: INITIAL CONTEXT SETUP REQUEST and S1AP: UE CONTEXT MODIFICATION REQUEST -> reuse field “CS Fallback indicator”
RRC – Interface: – – –
RRC: UECapabilityInformation -> reuse and newly support EUTRA Capability: rxConfig1xRTT RRC: RRCConnectionRelease -> reuse RRC: SIB8 -> add csfb-SupportForDualRxUEs support
Impact on network and network element management tools This feature has no impact on network management or network element management tools. Impact on system performance and capacity This feature has no impact on system performance or capacity.
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4.6.1.5
LTE RL60, Feature Descriptions and Instructions
LTE874: CSFB to CDMA/1xRTT for dual RX Ues management data Alarms There are no alarms related to this feature. Measurements and counters The table lists counters which are updated or reused with this feature. Table 24
Counters
Counter ID
Counter name
Measurement
M8016C11
CS Fallback attempts via RRC Connection Release
8016 - LTE Inter System Handover (WBTS)
M8016C12
CS Fallback attempts (UE in Connected Mode) via RRC Connection Release
8016 - LTE Inter System Handover (WBTS)
M8000C23
UE Context modification attempts
8000 - LTE S1AP (WBTS)
M8000C25
UE Context modification failures
8000 - LTE S1AP (WBTS)
M8000C31
UE Context modification attempts due to CS Fallback
8000 - LTE S1AP (WBTS)
Key performance indicators There are no key performance indicators related to this feature. Parameters There is only one new parameters related to this feature. Table 25
New parameter
Full name
Abbreviated name
Activate CSFB to CDMA 1xRTT for dual Rx UEs
actDualRx1xCsfb
Managed object LNBTS
The table lists parameters which are updated or reused with this feature. Table 26
Updated or reused parameters
Full name
Abbreviated name
Activate CS Fallback Via Redirection
66
actCSFBRedir
Managed object LNBTS
Activate Emergency Call Via Redirection actEmerCallRedir
LNBTS
Activate CS Fallback with PS-HO to UTRA
actCsfbPsHoToUtra
LNBTS
System Information Scheduling List
sibSchedulingList
SIB
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Table 26
Descriptions of radio resource management and telecom features
Updated or reused parameters (Cont.)
Full name
4.6.1.6
Abbreviated name
Managed object
SIB Type
siMessageSibType
SIB
Naming attribute of MOC CDFIM
cdfimId
CDFIM
Sales information Table 27
Sales information
BSW/ASW
License control in network element
License control attributes SW Asset Monitoring
ASW
Activated by default
No
4.6.2 Activating and configuring LTE874: CSFB to CDMA/1xRTT for dual RX UEs Before you start Before activating LTE874: CSFB to CDMA/1xRTT for dual RX UEs all CSFB to GERAN/UTRAN features (LTE22: Emergency call handling, LTE562: CSFB to UTRAN or GSM via redirect, LTE736: CS Fallback to UTRAN) must be deactivated. Restart of the eNB is not required after activation of this feature. Table 28
Parameters used for activating and configuring LTE874: CSFB to CDMA/1xRTT for dual RX UEs
Parameter
Purpose
Requires eNB restart or object locking
Activate CSFB to CDMA 1xRTT for dual Rx UEs (actDualRx1xCsfb)
activation flag
no
System Information Scheduling List (sibSchedulingList)
mandatory configuration
no
SIB Type (siMessageSibType)
mandatory configuration
no
The following features need to be deactivated before activation of LTE874: CSFB to CDMA/1xRTT for dual RX UEs: • • •
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LTE22: Emergency Call Handling (actEmerCallRedir is set to Disabled ) LTE562: CSFB To UTRAN or GSM Via Redirect (actCSFBRedir is set to Disabled ) LTE736: CS Fallback to UTRAN (actCsfbPsHoToUtra is set to false)
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LTE RL60, Feature Descriptions and Instructions
Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure, perform the steps described in this procedure.
2
Activate/Configure the feature LTE874: CSFB to CDMA/1xRTT for dual RX UEs. a) b) c) d)
3
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Activate CSFB to CDMA 1xRTT for dual RX UEs (actDualRx1xCsfb) parameter value to true.
Create the System information scheduling list. a) Go to the Radio Network Configuration page. b) Go to MRBTS ► LNBTS ► LNCEL ► SIB object. c) Select System information scheduling list and create a new SIB list
g
Note: To create a new SIB list, click the right mouse button and select New System Information Schedule list d) Set the SIB type (siMessageSibType) parameter value to SIB8. e) Set the Periodicity (siMessagePeriodicity) parameter to a value between 80ms and 5120ms. f) Set the Repetition (siMessageRepetition ) parameter to a value between 1– 4.
4
Create the CDFIM parameters. a) Go to the Radio Network Configuration page. b) Go to MRBTS ► LNBTS ► LNCEL object. c) Create CDFIM object.
g
Note: To create a new CDFIM, click the right mouse button and select CDFIM d) Set the CDMA2000 frequency idle mode configuration identifier parameter value to 1. The following parameters are optional - no need to set for activation. e) Set the CDMA search window size to a value between 0 ... 15 f) Set the CDMA2000 1xRTT cell reselection timer to a value between 0 ... 7 g) Set the CDMA2000 HRPD cell reselection timer to a value between 0 ... 7
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5
Descriptions of radio resource management and telecom features
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Result The feature LTE874: CSFB to CDMA/1xRTT for dual RX UEs is activated.
4.6.3 Deactivating LTE874: CSFB to CDMA/1xRTT for dual RX UEs Before you start The Activate CSFB to CDMA 1xRTT for dual Rx UEs (actDualRx1xCsfb) parameter is used for deactivation. Modification of this parameter does not require eNB restart. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure, perform the steps described in this procedure.
2
Deactivate the feature LTE874: CSFB to CDMA/1xRTT for dual RX UEs. a) b) c) d)
3
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Activate CSFB to CDMA 1xRTT for dual RX UEs (actDualRx1xCsfb) parameter value to false.
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected outcome The feature LTE874: CSFB to CDMA/1xRTT for dual RX UEs is deactivated.
4.7 LTE944: PUSCH masking 4.7.1 Description of LTE944: PUSCH masking Introduction to the feature
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LTE RL60, Feature Descriptions and Instructions
The LTE944: PUSCH masking feature provides an option for masking physical uplink shared channel (PUSCH) sub-areas that are not supposed to be granted to the UEs with data in the uplink (UL) transmission buffer. Typically, a masked PUSCH sub-area is affected by the UL interference. The LTE944: PUSCH masking feature provides a way to overcome static interference issues between adjacent cells (to set up or to guard other services which use a small spectrum inside the LTE spectrum) or cells that may be disturbed by crosstalk. Only PUSCH physical resource blocks (PRBs) are masked by this feature. In addition, PRBs that are allocated by the physical random access channel (PRACH) at least once per radio frame cannot be selected for masking. The PUSCH sub-area to be masked is identified by two O&M parameters: the first parameter defines the starting PRB and the second parameter specifies PUSCH mask size by the number of PRBs. Maximum of two PUSCH masks can be configured.
4.7.1.1
Benefits End-user benefits This feature does not affect the end-user experience. Operator benefits This feature provides a flexible way of handling the UL interference problems, such as static reuse schemes.
4.7.1.2
Requirements Software requirements Table 29: Software requirements lists the software required for this feature. Table 29
Software requirements
System release RL60
Flexi Multiradio BTS LBTS6.0
UE n/a
Flexi Multiradio 10 BTS LBTS6.0
NetAct NetAct8 EP1
OMS -
MME -
SAE GW -
Hardware requirements This feature requires no new or additional hardware.
4.7.1.3
Functional description The Flexi Multiradio BTS supports O&M-based masking of PRBs for PUSCH in the frequency domain scheduler. This feature can be enabled or disabled per cell O&M settings. The LTE944: PUSCH masking provides a simple way to permanently mask a PUSCH sub-spectrum, which should not be granted to the UEs. The PRB mask is treated by the UL scheduler as permanent virtual users blocking certain PRBs. An FD scheduler considers only the non-masked PRBs for scheduling in the PUSCH spectrum. The PUSCH sub-area being masked is defined by two O&M parameters: the starting PRB
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Descriptions of radio resource management and telecom features
and the number of PRBs to be masked. The PRB mask is operator-configurable per cell and up to two areas of consecutive PUSCH PRBs can be masked. PRACH regions cannot be masked. The PUSCH PRB mask cannot be used in combination with sounding reference signal (SRS). The SRS has to be disabled whenever this feature is enabled to protect the services located in the masked PUSCH sub-area from interfering signals. Disabling the SRS affects the LTE46: Channel Aware Scheduler (UL) and LTE1495: Fast uplink link adaptation features. These two features can be enabled even though the SRS is not configured. When SRS is disabled, the evaluation of channel state and carrier frequencies is based only on PUSCH transmission. When SRS is enabled, PUSCH transmission is also used as a basis to obtain channel state information (CSI) measurements that indicate link quality. The channel aware scheduler is allowed in combination with PUSCH masking. Since the SRS is disabled whenever PUSCH masking is enabled, the UL scheduler has to schedule the UEs based only on the CSI coming from PUSCH transmissions. This leads to a decrease in channel aware scheduler gain as compared to the case where SRS is enabled. By configuring the eNB, the number of scheduling areas shall be defined when applicable so that the PUSCH mask falls completely within one or more scheduling area(s) and the masked scheduling areas can be excluded from the determination of the preferred scheduling area. If this is not possible, the UL scheduler evaluates the average I+N power for the restricted scheduling area only for the non-masked PUSCH PRBs and handles the affected scheduling area in a similar manner as the unaffected scheduling areas. Whenever the PUSCH mask affects more than half of the PRBs, the scheduling area cannot be selected as the preferred scheduling area. The restrictions in scheduling non-GBR bearers are possible for PUSCH mask configuration, which leads to strong PUSCH sub-areas of varying sizes. The PRB assignment is done by the weighted round robin (WRR) scheduler. If for such a PUSCH mask configuration, the LTE619: Interference aware UL Scheduler or LTE46: Channel Aware Scheduler (UL) feature is selected and the preferred scheduling area falls into the largest PUSCH sub-area, then the PRB assignment procedure might stop after all the resources of the initially allocated PUSCH sub-area are exhaust. The move of any UE from the initially allocated PUSCH sub-area to one of the remaining PUSCH sub-areas is prevented due to the lack of resources in the considerably smaller PUSCH sub-areas. For such a scenario, it is likely that not all available PUSCH PRBs are assigned to the UEs with non-GBR bearers, which leads to restrictions in the overall PRB allocations and hence in peak as well as in cell throughput. Certain conditions apply to LTE944: PUSCH masking: •
PUSCH masking cannot be performed with the following narrow-band features: – – –
•
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LTE115: 5MHz system bandwidth LTE116: 3 MHz system bandwidth LTE117: 1.4 MHz system bandwidth
Concurrent allocation of PUSCH mask and PRACH in the PUSCH spectrum is prohibited since allocation of PUSCH mask overrules the PRACH allocation. The PUSCH mask is configured to guarantee enough resources for the configuration of the PRACH (6 PRBs) within the PUSCH spectrum.
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g
LTE RL60, Feature Descriptions and Instructions
Note: –
–
• •
g
In case the PRACH Management feature determines the optimum PRACH location within the PUSCH mask area, the next best configuration that does not overlap with the PUSCH mask is selected for the location of the PRACH. The random access channel (RACH) optimization process has to consider the location of the PUSCH masks within the PUSCH spectrum and has to prevent the overlapping of PRACH and PUSCH mask.
Two PUSCH masks cannot overlap. SRS is disabled independent of the selected FD scheduling approach whenever a PUSCH mask is specified for a cell. Note: The setting of all other O&M parameters that can affect the suitable behavior of the eNB is controlled by the operator.
The use of the PRB mask might lead to decrease in: • • •
4.7.1.4
peak rate for normal users less frequency diversity for normal users as the UL scheduler is restricted in random hopping for channel unaware scheduler less fair resource assignment
System impact Interdependencies between features The LTE46: Channel Aware Scheduler and LTE1495: Fast uplink link adaptation features can be enabled together with this feature; however, only PUSCH information is used. The following features are affected by this feature: • • • •
LTE619: Interference aware UL Scheduler LTE581: PRACH Management LTE962: RACH Optimization LTE28: Closed Loop UL Power Control
The following features are not supported in combination with this feature: • • •
LTE117: 1.4 MHz cell bandwidth LTE116: 3 MHz cell bandwidth LTE115: 5 MHz cell bandwidth
Impact on interfaces This feature has no impact on interfaces. Impact on network and network element management tools This feature has no impact on network management or network element management tools. Impact on system performance and capacity System performance is impacted because the peak rate and the maximum cell throughput are decreased.
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The reduction of the RAN system capacity is proportional to the number of PRBs, which are spent for the PUSCH mask.
4.7.1.5
LTE944: PUSCH masking management data For information on alarm, counter, key performance indicator, and parameter documents, see Reference documentation. Alarms There are no alarms related to this feature. Measurements and counters There are no measurements or counters related to this feature. Key performance indicators There are no key performance indicators related to this feature. Parameters Table 30: New parameters lists parameters introduced with this feature. Table 30
New parameters
Full name
Abbreviated name
Managed object
Structure
Activate PUSCH masking
actPuschMask
LNCEL
PUSCH mask
ulsPuschMask
LNCEL
Length of the PUSCH mask
ulsPuschMaskLength
LNCEL
ulsPuschMask
Start PRB of the PUSCH mask
ulsPuschMaskStart
LNCEL
ulsPuschMask
Table 31: Related existing parameters lists existing parameters related to this feature. Table 31
Related existing parameters
Full name
4.7.1.6
Abbreviated name
Managed object
Method for UL power control
actUlpcMethod
LNCEL
PRACH frequency offset
prachFreqOff
LNCEL
Uplink channel bandwidth
ulChBw
LNCEL
Structure
Sales information Table 32
Sales information
BSW/ASW ASW
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Activated by default No
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LTE RL60, Feature Descriptions and Instructions
4.7.2 Activating and configuring LTE944: PUSCH masking Before you start Activation of this feature requires object locking. Table 33
Parameters used for activating and configuring LTE944: PUSCH masking
Parameter
g
Purpose
Requires eNB restart or object locking
Activate PUSCH masking Activation flag (actPuschMask)
Object locking
PUSCH mask (ulsPuschMask) set of parameters
Mandatory configuration
Object locking
Length of the PUSCH mask (ulsPuschMaskLengt h)
Mandatory configuration
Object locking
Start PRB of the PUSCH mask (ulsPuschMaskStart )
Mandatory configuration
Object locking
Note: The LTE46: Channel Aware Scheduler and LTE1495: Fast uplink link adaptation can be enabled together with this feature; however, PUSCH information is used and SRS will not be used. These features will work in modified modes, which may result in reduced gains. These features are expected to cause the following: • •
The channel aware scheduler will derive the channel state information (CSI) exclusively from the demodulation reference signal. The fast UL link adaptation evaluates only the received signal strength indicator (RSSI) coming from PUSCH. The SRS does not provide any measurements for this case.
The following features are not supported in combination with this feature: • • •
LTE117: 1.4 MHz cell bandwidth LTE116: 3 MHz cell bandwidth LTE115: 5 MHz cell bandwidth
The channel bandwidth must be greater than or equal to 10 MHz.
Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure, perform the steps described in this procedure.
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2
Descriptions of radio resource management and telecom features
Set the activation flag. a) b) c) d)
Go to the Radio Network Configuration page. Expand the MRBTS object. Expand the LNBTS object. Select the LNCEL object corresponding to the cell where the LTE944: PUSCH masking feature will be activated. e) Set the Activate PUSCH masking (actPuschMask) parameter value to true.
g
Note: This parameter activates the feature.
3
Define PUSCH mask (ulsPuschMask). a) Expand the MRBTS object. b) Expand the LNBTS object. c) In each LNCEL object under selected LNBTS, repeat the following actions: 1. If the PUSCH mask is not available under LNCEL, right-click on the LNCEL object and select New PUSCH mask. 2. Expand PUSCH mask under LNCEL object. 3. Select PUSCH mask-1 and define all the parameters within this object. 4. Select and right-click on the PUSCH mask under LNCEL object. 5. Select New PUSCH mask-2 and define all the parameters within this object.
g
Note: Maximum of two masks can be defined/created.
4
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected Outcome The LTE944: PUSCH masking feature is activated in the cell.
4.7.3 Deactivating LTE944: PUSCH masking Before you start Deactivation of this feature requires object locking.
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LTE RL60, Feature Descriptions and Instructions
Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure, perform the steps described in this procedure.
2
Set the Activate PUSCH masking (actPuschMask) parameter. a) b) c) d)
Go to the Radio Network Configuration page. Expand the MRBTS object. Expand the LNBTS object. Select the LNCEL object corresponding to the cell where the LTE944: PUSCH masking feature will be deactivated. e) Set the Activate PUSCH masking (actPuschMask) parameter value to false.
3
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected outcome The LTE944: PUSCH masking feature is deactivated in the cell.
4.8 LTE1047: Control plane overload handling 4.8.1 Description of LTE1047: Control plane overload handling Introduction to the feature The LTE1047: Control plane overload handling feature is introduced to deal with control plane overload resulting from signaling messages on Uu (RRC), S1-MME (S1AP) and X2 (X2AP) interfaces. The functionality comprises of an overload management function and a set of overload countermeasures.
4.8.1.1
Benefits End-user benefits This feature does not affect the end-user experience directly, but it helps to maintain the basic network services during overload situations. Operator benefits This feature provides the following benefits to the operator: •
•
76
It helps to maintain reasonable control plane throughput during overload scenarios (for example, during New Year's Eve, sport events, or in disaster areas) and prevents the eNB from crashing. Provides countermeasures to regulate the control plane load.
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4.8.1.2
Descriptions of radio resource management and telecom features
Requirements Software requirements Table 34: Software requirements lists the software required for this feature. Table 34
Software requirements
System release
Flexi Multiradio BTS
RL60
LBTS6.0 UE
Flexi Multiradio 10 BTS LBTS6.0
NetAct
3GPP R8 mandatory
NetAct8 EP1
OMS -
MME -
SAE GW -
Hardware requirements This feature requires no new or additional hardware.
4.8.1.3
Functional description Functional overview Overload can be caused by traffic peaks, which last only for a short time, or by sustainable traffic increase, which might last for longer periods of time. With the introduction of the LTE1047: Control plane overload handling feature, the eNB is able to: • • •
continue to process signaling messages during overload and successfully complete high percentage of the corresponding signaling procedures operate under conditions where the CPU load of 70-80% is exceeded protect itself against crashing
The functionality is enabled with the Activation of C-plane overload handling (actCplaneOvlHandling) parameter. Overload levels To deal with control plane overload effectively, the following overload levels are defined: •
overload level 0 (normal operation) At normal state, the following conditions are fulfilled: – – – –
•
•
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KPIs are on target the BHCA load does not exceeds the eNB capacity the message queues are practically empty overload thresholds are not exceeded
overload level 1 (graceful overload handling) At this overload level, ongoing services should be maintained and emergency/high priority calls should be prioritized. The admission of new connections might be reduced and the quality of the connection decreased (for example, because of delayed handovers). overload level 2 (self-defense)
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At this overload level the system should protect itself against queue overflow and a system crash. Only the establishment of emergency sessions and high priority access are admitted. The control plane overload level is evaluated based on message queuing time. Control plane overload countermeasures The following countermeasures are introduced: •
•
Rejection of incoming handovers The incoming handover (HO) requests are rejected to reduce the load. In overload level 1, the eNB rejects incoming non-emergency HO without GBR bearer and HO cause other than Time Critical Handover or Handover Desirable for Radio Reasons. For level 2, the eNB rejects all non-emergency HO. The functionality is enabled with the Activate incoming HO reduction (actInHORed) parameter. Rejection of RRC connection requests When an RRC connection request is received by the eNB, the reject message is sent back to the UE. In overload level 1, the eNB rejects low priority RRC connection requests (with Establishment Causes: delayTolerantAccess, mo-data, or mosignaling). The same rule applies for level 2. The functionality is enabled with the Activate RRC connection reduction (actRrcConnRed) parameter.
If the Activation of C-plane overload handling (actCplaneOvlHandling) parameter is set to true, the eNB: 1. Monitors the C-Plane processing behavior. 2. Identifies the overload state. 3. Applies countermeasures depending on overload state. All these actions are performed on the cell level. If the parameter is set to false, the C-Plane overload state is always set to level 0 for all cells, and no countermeasures are applied. New performance counters The countermeasures applied during overload might distort counters defined for different LTE features. The distortion of these counters should be proportional to the overload duration. To quantify this distortion, the following performance counters are introduced to monitor the control plane overload functionality of the affected cells: • •
number of rejected RRC connection establishment requests for both emergency and non-emergency access aggregated time period of control plane in overload level 1 and 2
For the detailed list, see the Measurements and counters section.
4.8.1.4
System impact Interdependencies between features Rejection of incoming handover requests affects the following handover-related features: • •
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LTE53: Intra and Inter eNB Handover with X2 LTE54: Intra-LTE Handover via S1
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LTE55: Inter-frequency Handover LTE1060: TDD - FDD Handover LTE1170: Inter-frequency Load Balancing
• • •
Rejection of RRC Connection Request affects the LTE50: UE State Management feature. Impact on interfaces The overload countermeasures aim to reduce the signaling on Uu, S1 and X2 interfaces. Impact on network and network element management tools This feature has no impact on network management or network element management tools. Impact on system performance and capacity This feature has no impact on system performance or capacity.
4.8.1.5
LTE1047: Control plane overload handling management data Alarms There are no alarms related to this feature. Measurements and counters Table 35: New counters lists counters introduced with this feature. Table 35
New counters
Counter ID
Counter name
Measurement
M8013C29
Number of rejected RRC Connection Establishment Requests for nonemergency access
LTE UE State
M8013C30
Number of rejected RRC Connection Establishment Requests for emergency access
LTE UE State
M8001C149
Aggregated time period of Control Plane in overload level 1
LTE Cell Load
M8001C152
Aggregated time period of Control Plane in overload level 2
LTE Cell Load
Key performance indicators There are no key performance indicators related to this feature. Parameters Table 36: New parameters lists parameters introduced with this feature. Table 36
New parameters
Full name
Abbreviated name
Managed object
Activation of C-plane overload handling
actCplaneOvlHandling LNBTS
Overload handling
ovlha
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Structure
LNBTS
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Table 36
New parameters (Cont.)
Full name
4.8.1.6
LTE RL60, Feature Descriptions and Instructions
Abbreviated name
Managed object
Structure
Activate incoming HO reduction
actInHORed
LNBTS
ovlha
Activate RRC connection reduction
actRrcConnRed
LNBTS
ovlha
Sales information Table 37
Sales information
BSW/ASW ASW
License control in network element SW Asset Monitoring
License control attributes -
Activated by default No
4.8.2 Activating and configuring LTE1047: Control plane overload handling Before you start Table 38
Parameters used for activating and configuring LTE1047: Control plane overload handling Parameter
Purpose
Requires eNB restart or object locking
Activation of C-plane overload handling (actCplaneOvlHand ling)
activation flag
no
Activate incoming HO reduction (actInHORed)
mandatory configuration
no
Activate RRC connection reduction (actRrcConnRed)
mandatory configuration
no
Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure perform the steps described in this procedure.
2
Set the activation flag. a) Go to the Radio Network Configuration page. b) Expand the MRBTS object. c) Select the LNBTS object.
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d) Set the Activation of C-plane overload handling (actCplaneOvlHandling) parameter value to true.
3
Enable the overload countermeasures. a) b) c) d)
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Right-click on LNBTS object and add new Overload handling (ovlha) parameter structure. • •
4
To enable the incoming handover reduction, set the Activate incoming HO reduction (actInHORed) parameter value to true. To enable the RRC Connection reduction, set the Activate RRC connection reduction (actRrcConnRed) parameter value to true.
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected Outcome The LTE1047: Control plane overload handling feature together with the enabled overload countermeasures is active in the eNB.
4.8.3 Deactivating LTE1047: Control plane overload handling Before you start The Activation of C-plane overload handling (actCplaneOvlHandling) parameter is used for deactivation. Modification of this parameter does not require eNB restart or cell locking. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure perform the steps described in this procedure.
2
Set the activation flag. a) Go to the Radio Network Configuration page. b) Expand the MRBTS object. c) Select the LNBTS object.
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d) Set the Activation of C-plane overload handling (actCplaneOvlHandling) parameter value to false.
3
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected Outcome The LTE1047: Control plane overload handling feature together with all the overload countermeasures is deactivated in the eNB.
4.9 LTE1074: Multimedia priority services 4.9.1 Description of LTE1074: Multimedia priority services Introduction to the feature The LTE1074: Multimedia priority services feature supports admission control for high priority services that require resources during network congestion. It extends the functionality of the LTE572: IMS Emergency Sessions feature, to support also other - not usual IMS emergency - prioritized sessions.
4.9.1.1
Benefits End-user benefits This feature does not affect the end-user experience directly, but it helps to: •
•
maintain mobile-terminated accessibility for important services (for example, emergency calls or internal communication of rescue teams) in case of paging congestion prioritize connection requests for these services during network congestion
Operator benefits This feature allows the operator to control the connection requests in a prioritized manner.
4.9.1.2
Requirements Software requirements Table 39: Software requirements lists the software required for this feature. Table 39
Software requirements
System release RL60
LBTS6.0 UE
3GPP R8 mandatory
82
Flexi Multiradio BTS
Flexi Multiradio 10 BTS LBTS6.0
NetAct NetAct8 EP1
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OMS -
MME -
SAE GW -
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Hardware requirements This feature requires no new or additional hardware.
4.9.1.3
Functional description Functional overview The LTE1074: Multimedia priority services feature deals with priority services by introducing the following concepts: •
•
•
Paging prioritization Paging resources are assigned according to the paging priority information element (IE) of its related S1AP: PAGING request. This solution helps to maintain mobile-terminated availability during paging congestion. Recognition and handling high-priority RRC connections and E-RABs RRC connection requests and E-RABs with a high-priority allocation and retention priority (ARP) are recognized and prioritized using a method similar to the one already introduced with the LTE572: IMS Emergency Sessions feature. This solution allows prioritized services to get required resources. Emergency callback If an RRC connection request is caused by an S1AP: PAGING message containing the paging priority IE, it is handled like a request with establishment cause set to Emergency. This solution allows the network to establish an emergency session with a UE that is prioritized like a mobile-originated emergency session.
Handling prioritized services The whole functionality is enabled with the Activate high priority services (actHighPrioServices) parameter. If it is switched on, the following scenarios are applied: •
•
•
During paging congestion, the surplus paging requests are discarded considering the priority. In practice, the requests without the paging priority are dropped first, and requests with the paging priority are dropped in the order of descending priority level. The high priority access UEs are identified either by the RRC connection establishment cause (set to highPriorityAccess) or by dedicated operatorconfigurable high priority ARP values associated with data radio bearer. High priority calls are treated as emergency calls during admission control in serving cell and in target cell (during the handover). A subsequent RRC connection request from a UE that has been paged with a paging priority is admitted like an emergency RRC connection request.
Feature configuration The operator can define a range of ARP priority levels. Any ARP parameter matching this range is recognized as a high-priority ARP parameter. To define the minimum priority level, configure the High-priority session ARP priority level minimum (hpsSessArpMin) parameter. To define the maximum priority level, configure the
High-priority session ARP priority level maximum (hpsSessArpMax) parameter. The operator can also configure the time interval for correlating S1 paging requests with the relevant RRC connection request messages. It is defined with the Timer paging correlation interval (tPageCorrInt) parameter.
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For details on feature activation and configuration, see Activating and configuring LTE1074: Multimedia priority services. New performance counters To monitor the scale of prioritized connections, new counters are introduced to measure: • •
the number of signaling connection establishment attempts and completions for high priority calls the E-RAB setup requests and completions for high priority calls
For a detailed list of counters, see the Measurements and counters section.
4.9.1.4
System impact Interdependencies between features The following features need to be enabled before the activation of the LTE1074: Multimedia Priority Services feature : • • • •
LTE572: IMS emergency session LTE534: ARP based admission control LTE496: Support of QCI 2, 3, and 4 LTE497: Smart admission control
Impact on interfaces This feature has no impact on interfaces. Impact on network and network element management tools This feature has no impact on network management or network element management tools. Impact on system performance and capacity When prioritized calls are served during network congestion, some connection requests for normal sessions might be dropped.
4.9.1.5
LTE1074: Multimedia priority services management data Alarms There are no alarms related to this feature. Measurements and counters Table 40: Existing counters lists existing counters for this feature. Table 40
Existing counters Counter ID
84
Counter name
Measurement
M8006C186
E-RAB setup attempts LTE EPS Bearer (requests) for high priority calls
M8006C187
E-RAB setup completions for high priority calls
LTE EPS Bearer
M8013C31
Signaling Connection Establishment attempts for high priority calls
LTE UE State
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Table 40
Descriptions of radio resource management and telecom features
Existing counters (Cont.) Counter ID
Counter name
Measurement
M8013C32
Signaling Connection Establishment completions for high priority calls
LTE UE State
M8013C33
Number of rejected Signaling Connection Establishment Requests for high priority calls
LTE UE State
Key performance indicators There are no key performance indicators related to this feature. Parameters Table 41: New parameters lists parameters introduced with this feature. Table 41
New parameters
Full name
Abbreviated name
Managed object
Structure
Activate high priority services
actHighPrioServices
LNBTS
High-priority session configurations
hpsSessConfig
LNBTS
High-priority session ARP priority level maximum
hpsSessArpMax
LNBTS
hpsSessConfig
High-priority session ARP priority level minimum
hpsSessArpMin
LNBTS
hpsSessConfig
Timer paging correlation interval
tPageCorrInt
LNCEL
Table 42: Related parameterslists parameters related to other features that need to be activated. Table 42
Related parameters Full name
4.9.1.6
Abbreviated name
Managed object
Activate enhanced AC and GBR services
actEnhAcAndGbrServices
LNBTS
Activate support of IMS emergency sessions for Rel 9 UE
actIMSEmerSessR9
LNBTS
Sales information Table 43
Sales information
BSW/ASW ASW
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License control attributes -
Activated by default no
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4.9.2 Activating and configuring LTE1074: Multimedia priority services Before you start Table 44
Parameters used for activating and configuring LTE1074: Multimedia priority services Parameter
Purpose
Requires eNB restart or object locking
Activate high priority services (actHighPrioServices)
activation flag
no
Timer paging correlation interval (tPageCorrInt)
mandatory configuration
no
High-priority session ARP priority level minimum (hpsSessArpMin)
mandatory configuration
no
High-priority session ARP priority level maximum (hpsSessArpMax)
mandatory configuration
no
The following features need to be activated before activation of the LTE1074: Multimedia priority services feature: • • • •
LTE572: IMS Emergency Session LTE534: ARP-based Admission Control for E-RABs LTE496: Support of QCI 2, 3, and 4 LTE497: Smart Admission Control For details, see Activating LTE496: Support of QCI 2, 3 and 4; LTE497: Smart Admission Control; LTE534: ARP Based Admission Control and Activating LTE572: IMS Emergency Sessions using BTS Site Manager.
To handle the emergency callback and high priority access properly, the parameters in the IMS emergency PLMN configurations (imsEmerPlmnConfig) structure under the LNBTS object need to be configured for the selected PLMN. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure perform the steps described in this procedure.
2
Set the activation flag. a) Go to the Radio Network Configuration page. b) Expand the MRBTS object. c) Select the LNBTS object.
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d) Set the Activate high priority services (actHighPrioServices) parameter value to true.
3
Define the high priority level range for allocation and retention priority (ARP) parameters. a) b) c) d)
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Right-click on LNBTS object and add new High-priority session configurations (hpsSessConfig) parameter structure. •
•
g 4
5
Note: The hpsSessArpMin value must be less than or equal to hpsSessArpMax value.
Configure the time interval for correlating S1 paging and RRC connection request messages. a) b) c) d) e)
g
To define the minimum priority level, configure the High-priority session ARP priority level minimum (hpsSessArpMin) parameter. To define the maximum priority level, configure the High-priority session ARP priority level maximum (hpsSessArpMax) parameter.
Go to the Radio Network Configuration page. Expand the MRBTS object. Expand the LNBTS object. Select the LNCEL object. Define the correlation interval time using the Timer paging correlation interval (tPageCorrInt) parameter. Note: Repeat this step for all cells of the eNB.
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected Outcome The LTE1074: Multimedia priority services feature is enabled in the eNB.
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4.9.3 Deactivating LTE1074: Multimedia priority services Before you start The Activate high priority services (actHighPrioServices) parameter is used for deactivation. Modification of this parameter does not require eNB restart or cell locking. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure perform the steps described in this procedure.
2
Set the activation flag. a) b) c) d)
3
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Activate high priority services (actHighPrioServices) parameter value to false.
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected Outcome The LTE1074: Multimedia priority services feature is deactivated in the eNB.
4.10 LTE1198: RSRQ triggered mobility 4.10.1 Description of LTE1198: RSRQ Triggered Mobility Introduction to the feature The LTE1198: RSRQ triggered mobility introduces inter-frequency and inter-RAT mobility based on RSRQ triggers.
4.10.1.1
Benefits End-user benefits This feature does not affect the end-user experience. Operator benefits This feature benefits the operator by allowing it to better cope with high inter-cell interference scenarios, for example, because of missing neighbor cell relations or tight site re-use scheme in re-farming scenarios.
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4.10.1.2
Descriptions of radio resource management and telecom features
Requirements Software requirements Table 45: Software requirements lists software required for this feature. Table 45
Software requirements
System release RL60
Flexi Multiradio BTS LBTS6.0
UE 3GPP R8 UE capabilities
Flexi Multiradio 10 BTS LBTS6.0
NetAct NetAct8 EP1
OMS -
MME -
SAE GW -
Hardware requirements This feature requires no new or additional hardware.
4.10.1.3
Functional description The Flexi Multiradio BTS supports besides the A2 RSRP trigger, a parallel A2 RSRQ trigger in order to start inter-frequency and IRAT measurements. The termination of the inter-frequency and the inter-RAT measurements is extended in such a way that the RSRP triggered A1 measurement report contains also an RSRQ measurement that is compared to an operator-configurable threshold. The report amount for the A1 event is set to infinity and the report interval for the A1 event is operatorconfigurable. The related inter-frequency or IRAT measurement events (e.g. A3, A5 or B2) remain unchanged. The functionality can be enabled / disabled per eNode B by O and M settings.
4.10.1.4
System impact Interdependencies between features The following mobility features need to be enabled in order to be triggered by this feature. • • • • • • • •
LTE55: Inter-frequency Handover LTE56: Inter RAT Handover to WCDMA LTE872: SRVCC to WCDMA LTE1060: TDD - FDD handover LTE60: Inter-RAT Handover to eHRPD/3GPP2 LTE442: Network Assisted Cell Change to GSM LTE873: SRVCC to GSM LTE898: TDD Inter-RAT Handover to TD-SCDMA
Impact on interfaces This feature has no impact on interfaces. Impact on network and network element management tools Interface to Netact
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New parameters are added in the structure rsrqMobility: • • • • •
threshold2MobRsrq hysThreshold2MobRsrq a2TimeToTriggerMobRsrq a1ReportInterval threshold2aRsrq
Impact on system performance and capacity This feature has a negligible impact in terms of system capacity (MCU processing capacity) of eNB.
4.10.1.5
LTE1198: RSRQ triggered mobility management data Alarms There are no alarms related to this feature. Measurements and counters There are no measurements and counters related to this feature. Key performance indicators There are no key performance indicators related to this feature. Parameters The following parameters are new: Table 46
Parameters Full name
90
Abbreviated name
Manage d object
Structure
RSRQ mobility parameters
rsrqMobilityParams
LNCEL
A1 report interval for serving becomes better than RSRP
rsrqMobilityParams
LNCEL
rsrqMobilityParams
Time to trigger A2-RSRQ to start mobility measurement
a2TimeToTriggerMobRsrq
LNCEL
rsrqMobilityParams
Related hysteresis of threshold Th2 for RSRQ mobility
hysThreshold2MobRsrq
LNCEL
rsrqMobilityParams
Threshold Th2 for RSRQ mobility
threshold2MobRsrq
LNCEL
rsrqMobilityParams
Threshold Th2a for RSRQ mobility
threshold2aRsrq
LNCEL
rsrqMobilityParams
RSRQ redirection parameters
rsrqRedirectParams
LNCEL
Time to trigger for A2 by RSRQ to start redirect
a2TimeToTriggerRedirectRsr q
LNCEL
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Table 46
Descriptions of radio resource management and telecom features
Parameters (Cont.) Full name
4.10.1.6
Abbreviated name
Manage d object
Structure
Related hysteresis of threshold Th4 for RSRQ
hysThreshold4Rsrq
LNCEL
rsrqRedirectParams
Threshold Th4 for RSRQ
threshold4Rsrq
LNCEL
rsrqRedirectParams
Sales information Table 47
Sales information BSW/ASW
ASW
License control in network element SW Asset Monitoring
License control attributes -
4.10.2 Activating LTE1198: RSRQ triggered mobility Before you start The eNB has activated the RNW (Radio Network) database and is in service. Table 48
Parameters used for activating and configuring LTE1198: RSRQ triggered mobility
Parameter
Purpose
RSRQ mobility The feature is activated by parameters configuring the parameters ( contained in the structure. rsrqMobilityParams )
Requires eNB restart or object locking no
This is a structure. The parameters below are part of this structure.
A1 report interval for serving becomes better than RSRP(a1ReportInter val)
mandatory configuration
Time to trigger A2-RSRQ to start mobility measurement (a2TimeToTriggerMo bRsrq)
mandatory configuration
For the RSRP based A1 event of serving cell for stopping of Inter-RAT (InterFreq) Measurements the UE performs periodical reporting with this indicated interval. no
Time to trigger for A2-RSRQ. Duration for which the event A2RSRQ must be valid, such that mobility measurements with measurement gaps are activated.
Related hysteresis mandatory configuration of threshold Th2 for RSRQ mobility
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no
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Table 48
LTE RL60, Feature Descriptions and Instructions
Parameters used for activating and configuring LTE1198: RSRQ triggered mobility (Cont.)
Parameter
Purpose
Requires eNB restart or object locking
( Related Hysteresis of Threshold for hysThreshold2MobRs RSRQ of serving cell for mobility rq) measurements activation. Parameter is used within the entry and leave condition of the A2-RSRQ triggered reporting condition. The dB values are mapped to 3GPP IE values according to TS 36.331: IE value = value [dB] * 2.
Threshold Th2 for mandatory configuration no RSRQ mobility (threshold2MobRsrq Threshold for RSRQ of serving cell. If RSRQ of serving value is less than ) threshold2MobRsrq, then mobility measurements with measurement gaps are activated. Threshold Th2a for mandatory configuration no RSRQ mobility Threshold for RSRQ of serving cell (threshold2aRsrq) for stopping of Inter-RAT (Inter-Freq) measurements. The RSRP based A1 event reports also the RSRQ value which is compared with this threshold in eNB.
It is recommended to configure the feature LTE1407: RSRQ Based Redirect in parallel. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure perform the steps described in this procedure.
2
Activate/Configure the LTE1198:RSRQ Triggered Mobility feature. a) b) c) d) e)
92
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Select at least one LNCEL object. Create the optional structure RSRQ mobility parameters ( rsrqMobilityParams).
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f)
Descriptions of radio resource management and telecom features
Set the included parameters of the RSRQ mobility parameters (rsrqMobilityParams) parameter value to appropriate or default values. 1. Set the A1 report interval for serving becomes better than RSRP(a1ReportInterval) to an appropriate or default value. 2. Set the Related hysteresis of threshold Th2 for RSRQ mobility (hysThreshold2MobRsrq) to an appropriate or default value. 3. Set the Threshold Th2 for RSRQ mobility (threshold2MobRsrq) to an appropriate or default value. 4. Set the Threshold Th2a for RSRQ mobility(threshold2aRsrq to an appropriate or default value. 5. Set the Time to trigger A2-RSRQ to start mobility measurement (a2TimeToTriggerMobRsrq) to an appropriate or default value.
3
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
4.10.3 Deactivating LTE1198: RSRQ triggered mobility Before you start The eNB has activated the RNW database and is in service, and the optional LNCEL structure parameter rsrqMobilityParams is configured, that is the feature is activated in at least one cell The RSRQ mobility parameters (rsrqMobilityParams) structure is used for deactivation. Modification of this structure does require neither eNB restart, nor cell locking. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure, perform the steps described in this procedure.
2
Deactivate the LTE1198: RSRQ triggered mobility feature. a) b) c) d) e)
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Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Select at least one LNCEL object. Delete the optional structure RSRQ mobility parameters ( rsrqMobilityParams ).
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LTE RL60, Feature Descriptions and Instructions
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected outcome The feature LTE1198:RSRQ Triggered Mobility is deactivated.
4.11 LTE1231: Operator-specific GBR QCIs 4.11.1 Description of LTE1231: Operator-specific GBR QCIs Introduction to the feature The LTE1231: Operator specific GBR QCIs feature defines its own quality of service (QoS) profiles for guaranteed bit rate (GBR) evolved packet system (EPS) bearers.
4.11.1.1
Benefits End-user benefits This feature does not affect the end-user experience. Operator benefits The operator-specific QCIs allows better user and service differentiation of the GBR services.
4.11.1.2
Requirements Software requirements Table 49: Software requirements lists the software required for this feature. Table 49
Software requirements
System release
Flexi Multiradio BTS
RL60
LBTS6.0 UE
Flexi Multiradio 10 BTS LBTS6.0
NetAct
3GPP R8 mandatory
NetAct8 EP1
OMS -
MME -
SAE GW -
Hardware requirements This feature requires no new or additional hardware.
4.11.1.3
Functional description Up to 21 operator-specific QCIs for GBR EPS bearers are supported per eNB. The operator-specific QCIs allow for better user and service differentiation of GBR services. The QCI value for each QCI is operator configurable in the range from 128 to 254.
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The PM counter groups for non-GBR QCIs are applied as well to operator-specific GBR QCIs. Operator-specific GBR bearers are treated by admission control as standard GBR bearers. Robust header compression is not applied for operator-specific GBR QCIs. The total maximum number of operator-specific QCIs (GBR and non GBR) is 21.
4.11.1.4
System impact Interdependencies between features The following features need to be enabled: • • •
LTE496: Support of QCI 2, 3 and 4 LTE497: Smart admission control LTE534: ARP based admission control for E-RABs
The LTE587: Multiple GBR EPS Bearers per UE feature needs to be activated if the operator wants to use more than one GBR bearer at the same time. The LTE518: Operator specific QCI feature covers the operator-specific non-GBR QCIs and can be enabled separately or at the same time as LTE1231: Operator specific GBR QCIs feature. The differentiation between non-GBR and GBR is done by the Resource type (resType) parameter. One QCI value might be configured either for non-GBR or for GBR. Impact on interfaces This feature has no impact on interfaces. Impact on network and network element management tools This feature has no impact on network management or network element management tools. Impact on system performance and capacity This feature has no impact on system performance or capacity.
4.11.1.5
LTE1231: Operator-specific GBR QCIs management data Alarms There are no alarms related to this feature. Measurements and counters Counters defined for LTE518: Operator-specific QCI are applicable also for LTE1231: Operator-specific GBR QCIs. Key performance indicators There are no key performance indicators related to this feature. Parameters Table 50: New parameters lists parameters introduced with this feature.
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Table 50
LTE RL60, Feature Descriptions and Instructions
New parameters
Full name
Abbreviated name
Managed object
Structure
Activate support of operator specific GBR QCIs
actOperatorQCIGBR
LNBTS
Delay target
delayTarget
LNBTS
qciTabOperator
L2 overhead factor GBR Dl
l2OHFactorDl
LNBTS
qciTabOperator
L2 overhead factor GBR Ul
l2OHFactorUl
LNBTS
qciTabOperator
Maximum GBR downlink
maxGbrDl
LNBTS
qciTabOperator
Maximum GBR uplink
maxGbrUl
LNBTS
qciTabOperator
Priority
prio
LNBTS
qciTabOperator
Table 51: Related existing parameters lists existing parameters related to this feature. Table 51
Related existing parameters
Full name
Abbreviated name
Managed object
Structure
Activate enhanced AC actEnhAcAndGbrServi LNBTS and GBR services ces
96
QCI translation table qciTabOperator operator specific QCIs
LNBTS
Counter group
counterGroup
LNBTS
qciTabOperator
DRX profile index
drxProfileIndex
LNBTS
qciTabOperator
DSCP
dscp
LNBTS
qciTabOperator
Enforce TTI bundling
enforceTtiBundling
LNBTS
qciTabOperator
Logical channel group identifier
lcgid
LNBTS
qciTabOperator
PDCP profile index
pdcpProfIdx
LNBTS
qciTabOperator
QCI
qci
LNBTS
qciTabOperator
QCI support
qciSupp
LNBTS
qciTabOperator
Resource type
resType
LNBTS
qciTabOperator
RLC mode
rlcMode
LNBTS
qciTabOperator
RLC profile index
rlcProfIdx
LNBTS
qciTabOperator
Scheduling bucket size duration
schedulBSD
LNBTS
qciTabOperator
Scheduling priority
schedulPrio
LNBTS
qciTabOperator
Scheduling weight
schedulWeight
LNBTS
qciTabOperator
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4.11.1.6
Descriptions of radio resource management and telecom features
Sales information Table 52
Sales information
BSW/ASW ASW
License control in network element SW Asset Monitoring
License control attributes -
Activated by default No
4.11.2 Activating and configuring LTE1231: Operator-specific GBR QCIs Before you start Table 53
Parameters used for activating and configuring LTE1231: Operator specific GBR QCIs
Parameter
Purpose
Requires eNB restart or object locking
Activate support of operator specific GBR QCIs (actOperatorQCIGB R)
activation flag
no
QCI translation table operator specific QCIs (qciTabOperator) parameter structure
mandatory configuration
no
The following features need to be activated/configured before activation of LTE1231: Operator specific GBR QCIs: • • •
LTE534: ARP-based Admission Control for E-RABs LTE496: Support of QCI 2, 3 and 4 LTE497: Smart Admission Control
If the operator wants to use more then one GBR bearer at the same time, the LTE587: Multiple GBR EPS bearers per UE feature has to be activated. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure perform the steps described in this procedure.
2
Activate the LTE1231: Operator specific GBR QCIs. a) Go to the Radio Network Configuration page. b) Expand the MRBTS object.
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c) Select the LNBTS object. d) Set the Activate support of operator specific GBR QCIs (actOperatorQCIGBR) parameter value to true.
3
Configure the LTE1231: Operator specific GBR QCIs. a) b) c) d)
Go to the Radio Network Configuration page. Expand the MRBTS object. Expand the LNBTS object. Select and right-click on the QCI translation table operator specific QCIs (qciTabOperator) parameter structure and select New QCI translation table operator specific QCI-x. e) Set the parameters in the created parameter structure. The Resource type (resType) parameter value must be set to GBR.
g g
4
Note: If QCI translation table operator specific QCIs (qciTabOperator) parameter structure does not exist right-click on LNBTS object and add New QCI translation table operator specific QCIs parameter structure. Note: If the QCI translation table operator specific QCIs (qciTabOperator) parameter structure is not configured or parameter Resource type (resType) is not equal to GBR value for all entries in qciTabOperator, the feature LTE1231: Operator specific GBR QCIs is not activated.
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected outcome The feature LTE1231: Operator specific GBR QCIs has been activated and operator can define its own QoS profiles for GBR EPS bearers.
4.11.3 Deactivating LTE1231: Operator-specific GBR QCIs Before you start The Activate support of operator specific GBR QCIs (actOperatorQCIGBR) parameter is used for deactivation. Modification of this parameter does not require neither the eNB restart, nor cell locking. Procedure 1
Follow the general procedure described in section Activating and deactivating LTE features using BTS Site Manager. In Step 3 (Modify the feature-specific eNB configuration settings) of the general procedure perform the steps described in this procedure.
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2
Deactivate the LTE1231: Operator specific GBR QCIs. a) b) c) d)
3
Descriptions of radio resource management and telecom features
Go to the Radio Network Configuration page. Expand the MRBTS object. Select the LNBTS object. Set the Activate support of operator specific GBR QCIs (actOperatorQCIGBR) parameter value to false.
Send the parameters to the eNB according to the procedure described in section Activating and deactivating LTE features using BTS Site Manager.
Expected outcome The LTE1231: Operator specific GBR QCIs feature has been deactivated.
4.11 Variable Definitions
4.12 LTE1332: Downlink Carrier Aggregation - 40 MHz 4.12.1 Description of LTE1332: Downlink Carrier Aggregation - 40 MHz Introduction to the feature The LTE1332: Downlink Carrier Aggregation - 40 MHz feature supports carrier aggregation (CA) in downlink (DL) for two component carriers of up to 20 MHz cell bandwidth each and two non-aggregated uplink cells as an extension to LTE1089: Downlink Carrier Aggregation - 20 MHz feature. A mix of non-CA and CA UEs is supported in DL. The maximum aggregated DL bandwidth is 40 MHz.
4.12.1.1
Benefits End-user benefits This feature offers the end-user an improved peak and average UE downlink throughput. Operator benefits This feature supports 40 MHz DL Carrier Aggregation. It also enables fast load balancing for CA UEs and consolidates fragmented spectrum.
4.12.1.2
Requirements Software requirements Table 54: Software requirements lists the software required for this feature.
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Table 54
LTE RL60, Feature Descriptions and Instructions
Software requirements
System release RL60
Flexi Multiradio BTS -
UE 3GPP R10 UE capabilities
Flexi Multiradio 10 BTS LBTS6.0
NetAct NetAct8 EP1
OMS -
MME -
SAE GW -
Hardware requirements The following are the limitations regarding FSME/FMSF: •
•
•
5 MHz + 5 MHz and 10 MHz + 10 MHz are supported on both FSME and FSMF. All other bandwidth combinations, including the ones introduced in RL60, are supported on FSMF only. If the DL channel BW is greater than 10 MHz for one of the CA cells with 4RX antennas, two extension cards are needed for DL CA (FSMF + FBBA + FBBC or FSMF + FBBC + FBBC). Otherwise, FSMF + 1xFBBA or FSMF + 1xFBBC are needed. Note that once actFlexBbUsage is set to true for 5 MHz + 5 MHz, 5 MHz + 10 MHz, and 10 MHz + 10 MHz with 2RX antennas, no extension cards are needed. Special requirements are valid for the following antenna configurations: 2TX4RX + 2TX4RX, 2TX4RX + 4TX4RX, and 4TX4RX + 4TX4RX. One cell should have a maximum bandwidth of 10 MHz.
For more information, please see Flexi Multiradio and Multiradio 10 BTS LTE Supported Configurations.
4.12.1.3
Functional description The LTE1332: Downlink Carrier Aggregation - 40 MHz feature supports (intra-eNB) intraband contiguous/non-contiguous and (intra-eNB) inter-band DL CA. Two cells are aggregated in the DL so that CA UEs can achieve higher peak data rates. Note that this only works if neither of the two cells is fully loaded. The feature does not increase the overall capacity of the system. However, in some scenarios, the system capacity gains may be observed depending on the network deployment type and/or the UE traffic profile. The physical downlink shared channel (PDSCH) on the primary cell (PCell) and secondary cell (SCell) can be transmitted to the CA UE in a single TTI that is up to 4 transport blocks (TBs) (2 TBs per cell). In case of intra-band DL CA, the distance between the center frequencies of cells that can be aggregated is used to distinguish if the aggregation is contiguous or non-contiguous. The CA UEs can transmit on only one UL cell (PCell). Note that each of the cells can serve non-CA UEs in parallel to CA UEs. The feature is for FDD only. This feature supports the scenario 1 and scenario 2 from 3GPP TS 36.300 in the same way as the LTE1089: Downlink Carrier Aggregation - 20 MHz feature. Support of DL CA – 40 MHz The support of DL CA - 40 MHz is described as follows: • •
100
It supports setting and signaling of deltaF-PUCCH-Format1bCS-r10 and deltaFPUCCH-Format3-r10 in system information. The transient period with the ambiguity on the ACK/NACK codebook size on physical uplink shared channel (PUSCH), A/N spatial bundling on scheduling request
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indicator (SRI), and the downlink control information (DCI) 0/1A size between the UE and eNB during SCell addition and SCell release is mitigated. SCell outage/lock/shutdown causes an SCell release (it causes a UE Context Release including an RRC Connection Release in LTE1089: Downlink Carrier Aggregation - 20 MHz feature). The measurement gap configuration for the UEs with an added SCell is based on checking the MeasParameters-v1020. If either the Release 8/9 or Release 10 need for gaps information (or even both) indicates that the measurement gaps are needed for the related inter-frequency or inter-RAT measurements, then the measurement gaps are set up by the eNB. Alignment of DRX start offset with PCell's periodic channel state information (CSI). Handling of delayed SCell activation. A UE is camped in the SCell when a MAC CE activates the SCell, which is sent in the subframe n and acknowledged on the layer 1 by the UE. The UE is not a candidate for dynamic packet scheduling in the SCell until periodic/aperiodic CQI other than 0/OOR is received for the SCell or until subframe n + 33 (subframe n + 33 inclusive). The TX diversity fallback is not used and the multiple inputs multiple outputs (MIMO) is always used for the UEs with an active SCell. The prevention from entering the TX diversity is applied only for the closed-loop MIMO. The precoding matrix indicator (PMI) values might be not up-to-date due to CA-specific dropping of periodic CSI or due to infrequent aperiodic CSI in certain traffic conditions.
•
•
• •
•
g
Descriptions of radio resource management and telecom features
Note: The sub-band periodic CSI is not recommended to be configured when the DL CA is enabled. Instead, only the wideband periodic CSI is recommended to be configured. Feature deployment The deployment for the feature is as follows: • •
•
The aggregated cells are co-located. The aggregated cells are contiguous in the same band or non-contiguous in the same band or in different bands (inter-band DL CA is already in LTE1089: Downlink Carrier Aggregation - 20 MHz feature). The allowed band combinations are the following (with bandwidth combination set to 0 if not mentioned): – – – – – – – – – – – – – – – –
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band 1 + band 5 band 1 + band 7 band 1 + band 8 band 1 + band 18 band 2 + band 4 band 2 + band 5 band 2 + band 17 band 3 + band 3 (non-contiguous, contiguous) band 3 + band 5 band 3 + band 7 band 3 + band 8 band 3 + band 20 band 3 + band 28 band 4 + band 4 (non-contiguous, contiguous) band 4 + band 7 band 4 + band 12
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– – – –
g
band 4 + band 17 band 5 + band 7 band 7 + band 7 (non-contiguous, contiguous) band 7 + band 20 Note: The bandwidth configuration set must be checked at the SCell configuration for band combination 4 + 12. The bandwidth configuration sets 1, 2, 3, and 4 for band combination 4 + 12 must be supported.
•
The following cell bandwidth combinations are supported (as well for cell bandwidth combinations introduced in LTE1089: Downlink Carrier Aggregation - 20 MHz feature): – – – – – – – – – –
g
5 MHz + 5 MHz 5 MHz + 10 MHz 10 MHz + 10 MHz 5 MHz + 15 MHz 5 MHz + 20 MHz 10 MHz + 15 MHz 10 MHz + 20 MHz 15 MHz + 15 MHz 15 MHz + 20 MHz 20 MHz + 20 MHz Note: Only 3GPP defined cell band and cell bandwidth combinations are tested and released.
•
The dynamic throughput and caSchedFairFact-based division of per UE weights onto serving cells are replaced with static division of per UE weight onto the serving cells based only on caSchedFairFact parameter. This modification provides more predictable behavior and better fairness across the CA and non-CA UEs within each cell. The throughput differentiation between the CA and non-CA UEs is still provided according to the configuration of the caSchedFairFact parameter. However, the modification might provide some suboptimal or inexact fairness across the CA and non-CA UEs in case the radio/load conditions on the serving cells are unbalanced. The modification might reduce the load balancing benefit of the DL CA. The TX configurations of the aggregated cells are: – – – – – –
g
1TX + 1TX 1TX + 2TX 1TX + 4TX 2TX + 2TX 2TX + 4TX 4TX + 4TX Note: The TX configurations 1TX + 1TX, 1TX + 2TX (but not part of the officially supported and tested configurations), and 2TX + 2TX are already specified in LTE1089: Downlink Carrier Aggregation - 20 MHz feature.
• •
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LTE RL60, Feature Descriptions and Instructions
Two cells are aggregated in the DL (aggregation of more than two cells is not supported, UL CA is not supported). The antennas of the aggregated cells shall be pointed to the same geographical area (ignoring possible down tilt, if any).
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Descriptions of radio resource management and telecom features
The DL SFN/subframe and radio frame timing of the aggregated cells are synchronized at the eNB.
Since the UE changes the L1 configuration during the SCell addition and release, it is not clear when the UE will apply the configuration. This feature mitigates any one the following: • • •
the uncertainty on the ACK/NACK codebook size on PUSCH the A/N spatial bundling on SRI the DCI 0/1A size between the UE and eNB
The specific mitigation methods during the transient period include scheduling only the PCell in the DL (no SCell scheduling), not scheduling UL and DL in the same TTI, and avoiding of spatial ACK/NACK bundling on SRI resources. During the transient period, ACK/NACK spatial bundling with positive scheduling request is avoided by scheduling one TB per TTI to the UE in the DL on the PCell. Improved handling of an SCell lock/shutdown is introduced so that it causes an SCell release. An SCell lock/shutdown causes an RRC connection release in LTE1089: Downlink Carrier Aggregation - 20 MHz feature. The UE is still configured with cqiReportConfig-r10 after an SCell release by dedicated RRC signaling. In case of an FSP failure, the affected cells may be disabled and the automatic cell recovery not possible alarm is raised. An automatic BTS restart is performed if the alarm is raised to all configured cells in the eNB.
4.12.1.4
System impact Interdependencies between features The LTE1332: Downlink Carrier Aggregation - 40 MHz feature is enabled together with the LTE1089: Downlink Carrier Aggregation - 20 MHz feature. The LTE1089: Downlink Carrier Aggregation - 20 MHz and LTE1332: Downlink Carrier Aggregation - 40 MHz features can only be enabled if the LTE496: Support of QCI 2,3 and 4 feature is enabled. This restriction is used to avoid CA-related modifications of multiple types of scheduling metric calculation. CA-related modifications are introduced only together with the scheduling metric calculation specified in LTE496: Support of QCI 2,3 and 4. This also means that ARP handling is enabled with LTE1089: Downlink Carrier Aggregation - 20 MHz and LTE1332: Downlink Carrier Aggregation - 40 MHz features. The LTE1542: FDD Supercell feature can be enabled together with CA; however, the only allowed bandwidth is 10 MHz and both aggregated cells must have the same activation status of the supercell function. The LTE72: 4-way RX Diversity, LTE568: DL Adaptive Closed Loop MIMO (4x2), and LTE980: IRC for 4 RX Paths features work together with LTE1332: Downlink Carrier Aggregation - 40 MHz; however, additional limitations might be in place regarding capacity of the eNB. The LTE1382: Cell Resource Groups feature has a function of virtually splitting cell resources up to four operators. This feature can run in parallel with LTE1332: Downlink Carrier Aggregation - 40 MHz feature.
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The LTE1367: Automatic Cell Combination Assignment for Carrier Aggregation feature automatically pairs the cells to be used together for the CA features, and updates the BTS configuration. Without this feature, proper PCell/SCell pairing have to be assured manually on a cell-to-cell basis. Impact on interfaces This feature affects the interfaces as follows: •
Uu – –
new parameter in system information SCell release because of SCell lock/shutdown
Impact on network and network element management tools This feature has no impact on network management or network element management tools. Impact on system performance and capacity An improved peak and mean user DL throughput (for non-GBR) for the UEs with the secondary cell configured is the main goal of this feature. These throughput figures can be at maximum doubled (for bandwidth combinations with equal bandwidth of two involved cells). The actual gain depends on many factors like CA deployment type (level of overlapping of two involved layers), network load, level of GBR traffic, and parameterization of scheduling fairness factor.
4.12.1.5
LTE1332: Downlink Carrier Aggregation - 40 MHz management data For information on alarm, counter, key performance indicator, and parameter documents, see Reference documentation. Alarms There are no alarms related to this feature. Measurements and counters lists existing counters for this feature. Table 55
Related existing counters Counter ID
104
Counter name
Measurement
M8001C494
Average number of DL carrier aggregated capable UEs
LTE Cell Load
M8001C495
Average number of UEs with a configured Scell
LTE Cell Load
M8001C496
Average number of UEs with an activated Scell
LTE Cell Load
M8011C67
Number of SCell configuration attempts
LTE Cell Resource
M8011C68
Number of successful SCell configurations
LTE Cell Resource
M8012C151
PCell RLC data volume in DL via SCell
LTE Cell Throughput
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Descriptions of radio resource management and telecom features
Key performance indicators lists the existing key performance indicators related to this feature. Table 56
Related existing key performance indicators KPI ID
KPI name
LTE_5318a
E-UTRAN Average CA Capable UEs in DL
LTE_5319a
E-UTRAN Average UEs with a Configured SCell in DL
LTE_5320a
E-UTRAN Average UEs with an Activated SCell in DL
LTE_5321a
E-UTRAN Penetration of the CA Capable UEs into the Network
LTE_5323a
E-UTRAN SCell Configuration Success Ratio
LTE_5323a
E-UTRAN RLC PDU Volume DL via Scell
Parameters Table 57: New parameters lists parameters introduced with this feature. Table 57
New parameters
Full name
Abbreviated name
Managed object
Structure
Uplink power control common rel10 addons
uplinkPCCommonr10
LNCEL
UL power offset for PUCCH format 1bCS
deltaFPucchF1bCSr10 LNCEL
uplinkPCCommonr10
UL power offset for PUCCH format 3
deltaFPucchF3r10
uplinkPCCommonr10
LNCEL
Table 58: Related existing parameters lists existing parameters related to this feature. Table 58
Related existing parameters Full name
Abbreviated name
Managed object
Local cell resource ID of cell to lcrId be aggregated
CAREL
Activation of downlink carrier aggregation
actDLCAggr
LNBTS
EARFCN downlink
earfcnDL
LNCEL
Carrier aggregation pool ID
caPoolId
LNCEL
Sched Carrier Aggr fairness control factor
caSchedFairFact
LNBTS
SCell activation cycle period
sCellActivationCyclePeriod
LNBTS
Max number Carrier Aggr configured UEs double carrier
maxNumCaConfUeDc
LNCEL
Min UE-AMBR downlink for carrier aggregation
caMinDlAmbr
LNBTS
SCell activation method
sCellActivationMethod
LNBTS
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LTE RL60, Feature Descriptions and Instructions
Related existing parameters (Cont.) Full name
4.12.1.6
Abbreviated name
Managed object
Disable PDCCH outer loop link disableSCellPDCCHOlLa adaptation in SCell
CADPR/CAPR
SCell and PCell ambiguous HARQ feedback usage
sCellpCellHARQFdbkUsage
LNBTS
SCell deactivation timer eNB
sCellDeactivationTimereNB
LNBTS
Carrier aggregation relation identifier
caRelId
CAREL
Sales information Table 59
Sales information BSW/ASW
License control in network element
ASW
SW Asset Monitoring
Activated by default No
4.12.2 Activating and configuring LTE1332: Downlink Carrier Aggregation - 40 MHz Before you start The LTE1332: Downlink Carrier Aggregation - 40 MHz feature is enabled together with the LTE1089: Downlink Carrier Aggregation - 20 MHz feature (both features have the same activation flag). In operating the CA features, it might be necessary to set the link speed parameter. This is described in the Commissioning Flexi Multiradio BTS LTE document. Note that the default value (Auto) of this parameter is normally the optimal selection. Table 60
Parameters used for activating and configuring the LTE1332: Downlink Carrier Aggregation - 40 MHz Parameter
106
Purpose
Requires eNB restart or object locking
Activation of downlink carrier aggregation (actDLCAggr)
activation flag
eNB restart
UL power offset for PUCCH format 1bCS (deltaFPucchF1bCSr10)
optional configuration
no
UL power offset for PUCCH format 3 optional configuration (deltaFPucchF3r10)
no
Local cell resource ID of cell to be aggregated (lcrId)
mandatory configuration
object locking
Sched Carrier Aggr fairness control factor (caSchedFairFact)
mandatory configuration
object locking
Min UE-AMBR downlink for carrier aggregation (caMinDlAmbr)
optional configuration
no
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Table 60
Descriptions of radio resource management and telecom features
Parameters used for activating and configuring the LTE1332: Downlink Carrier Aggregation - 40 MHz (Cont.) Parameter
Purpose
Requires eNB restart or object locking
SCell activation cycle period optional configuration (sCellActivationCyclePerio d)
no
SCell activation method (sCellActivationMethod)
optional configuration
no
SCell and PCell ambiguous HARQ feedback usage (sCellpCellHARQFdbkUsage)
optional configuration
no
SCell deactivation timer eNB optional configuration (sCellDeactivationTimereNB )
no
EARFCN downlink (earfcnDL)
object locking
optional configuration
Max number Carrier Aggr configured optional configuration UEs double carrier (maxNumCaConfUeDc)
no
All LCELLs in the eNB must have the Carrier aggregation pool ID (caPoolId) parameter configured when the LTE1332: Downlink Carrier Aggregation 40 MHz feature is enabled. The CA cells with subordinated CAREL or CA cells linked by CAREL-lcrId of another LNCEL must have the same CA pool ID. A maximum of two cells can have the same CA pool ID. Each non-CA cell must have a unique CA pool ID. Not all MIMO modes can be mixed. Only the combinations that have the same maximum number of TB per TTI are allowed in the same CA pool ID. For intra-band contiguous DL CA, nominal channel spacing and channel spacing lower than the nominal channel spacing are allowed (proper configuration by the operator is required since there are no consistency checks) (available on the LTE Carriers page). Channel spacing for intra-band contiguous CA can be adjusted to any multiple of 300 kHz less than the nominal channel spacing. Minimum carrier spacing requirements between the aggregated carriers are: 18.3 MHz for 20 + 20 MHz 15.9 MHz for 15 + 20 MHz and 20 + 15 MHz 13.8 MHz for 15 + 15 MHz, 10 + 20 MHz and 20 + 10 MHz 11.4 MHz for 10 + 15 MHz, 15 + 10 MHz, 5 + 20 MHz and 20 + 5 MHz 9.3 MHz for 10 + 10 MHz, 5 + 15 MHz and 15 + 5 MHz 6.9 MHz for 5 + 10 MHz and 10 + 5 MHz 4.8 MHz for 5 + 5 MHz
• • • • • • •
Nominal channel spacing for carrier aggregation are provided in 3GPP specification 36.101.
g
Note: In order for the channel spacing to be configured properly, this must be fulfilled: 0.45 x (BW_Channel(1) + BW_Channel(2))
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