ZTE LTE FDD Inter-RAT Interoperability Feature Guide(V3.20.30)_V1.0
Short Description
ZTE...
Description
ZTE LTE LTE TDD Inter-RAT Inter-RAT interop erability Feature Guid e
ZTE
LTE
FDD
Inter-RAT
Interoperability Interoperability Feature Guide
ZTE Confidential Confid ential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. reserved. 1
ZTE LTE LTE FDD Inter-RAT Inter-RAT Interoperab ility Feature Guid e
ZTE LTE FDD Inter-RAT Interoperability Feature Guide Version Version V1.00
Date
Author Author
Reviewer
ZTE ZTE
Note Note s Not open to the third party
© 201 5 ZTE Corpora tion. tion. All All rights ri ghts reserved. ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or used without the prior written permission of ZTE. Due to update and improvement of ZTE products and technologies, information in this document is subjected to change without notice.
TABLE OF CONTENTS 2 ZTE Confidential Confid ential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. reserved.
ZTE LTE LTE TDD Inter-RAT Inter-RAT interop erability Feature Guid e
1
Introduction ............................................ ..................................................................... .............................................. ....................................... .................. 2
1.1 1.2 1.3 1.4
Scope ........................................... .................................................................... .............................................. .............................................. .............................. ..... 2 Target Target Group Group ............................................ ..................................................................... .............................................. ....................................... ..................2 Feature Feature Attribute..................... Attribute.............................................. .................................................. .............................................. ................................ ........... 2 Correlation Correlation with Other Features Features ........................................... ................................................................... .................................... ............ 3
2
Term Ter minology .............................................. ....................................................................... .............................................. .................................... ............... 3
2.1
Definitions Definitions.................... ............................................ ................................................. ............................................... ............................................ ...................... 3
3
Feature Feat ure Introduction.................... Introduction............................................. .................................................. .............................................. ........................ ... 3
3.1 3.2 3.3
Overview............................. Overview..................................................... ................................................. .................................................. ..................................... ............ 4 RSCP & Ec/No Ec /No Based Mobility Management Management ........................ ................................................. .................................. ......... 4 Service Based Handov Handover er ............................................. ...................................................................... ............................................ ................... 4
4
Technical Description De scription ........................................... .................................................................... .............................................. ....................... .. 4
4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8
Measurement eas urement .............................................. ....................................................................... .............................................. .................................... ............... 4 LTE-to-UTRAN LTE-to-UTRAN Handover Handover Decision ............................................. ..................................................................... ............................ .... 9 LTE-to-GERAN LTE-to-GERAN Handover Handover Decision............................... Decision....................................................... .......................................... .................. 9 LTE CSFB with PS Handov Handover er Decision ......................... ................................................. ........................................ ................ 10 10 Inter-RAT Handover Handover ............................................. ...................................................................... .............................................. ......................... .... 11 Redirection ............................................... ........................................................................ .............................................. ..................................... ................ 12 RSCP & Ec/No Ec /No Based Mobility Management Management ........................ ................................................. ................................ ....... 15 Service Based Handov Handover er ............................................. ...................................................................... .......................................... ................. 16
5
Key Ke y Parameters Paramete rs and Configuration ............................................ ................................................................... ....................... 17
5.1 5.1.1 5.1.2 5.1.3 5.2 5.2.1 5.2.2 5.2.3 5.3 5.3.1 5.3.2 5.3.3 5.4 5.4.1 5.4.2 5.4.3 5.5
Inter-RAT Operation Function ................................................. .......................................................................... ............................... ...... 17 Parameters List ...................................................... ............................................................................... ................................................ ....................... 17 Parameters Configuration Configuration rule ................................................ ......................................................................... ............................... ...... 17 Parameters Configuration Configuration Procedure ............................................. .................................................................... ....................... 21 Inter-RAT Redirection Function ........................................... ................................................................... .................................. .......... 27 Parameters List ...................................................... ............................................................................... ................................................ ....................... 27 Parameters Configuration Configuration rule ................................................ ......................................................................... ............................... ...... 28 Parameters Configuration Configuration Procedure ............................................. .................................................................... ....................... 29 Inter-RAT PS HO Function .............................................. ...................................................................... ...................................... .............. 33 33 Parameters List ...................................................... ............................................................................... ................................................ ....................... 33 Parameters Configuration Configuration rule ................................................ ......................................................................... ............................... ...... 33 Parameters Configuration Configuration Procedure ............................................. .................................................................... ....................... 34 CCO Function..................... Function.............................................. .................................................. .............................................. .................................. ............. 36 Parameters List ...................................................... ............................................................................... ................................................ ....................... 36 Parameters Configuration Configuration rule ................................................ ......................................................................... ............................... ...... 36 Parameters Configuration Configuration Procedure ............................................. .................................................................... ....................... 36 CSFB Function............................................. ...................................................................... .............................................. ................................. ............ 37
ZTE Confidential Confid ential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. reserved. 3
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
5.5.1 5.5.2 5.5.3 5.6 5.6.1 5.6.2 5.6.3 5.7 5.7.1 5.7.2 5.7.3
Parameters List ...................................................................................................... 37 Parameters Configuration rule ............................................................................... 38 Parameters Configuration Procedure .................................................................... 42 Inter-RAT Load Balancing Function....................................................................... 50 Parameters List ...................................................................................................... 50 Parameters Configuration rule ............................................................................... 51 Parameters Configuration Procedure .................................................................... 55 Inter-RAT Cell Reselection Function ..................................................................... 57 Parameters List ...................................................................................................... 57 Parameters Configuration rule ............................................................................... 59 Parameters Configuration Procedure .................................................................... 73
6
Feature Validation................................................................................................ 81
6.1 6.1.1 6.1.2 6.1.3 6.2 6.2.1 6.2.2 6.2.3 6.3 6.3.1 6.3.2 6.3.3 6.4 6.5 6.5.1 6.5.2 6.5.3 6.6 6.6.1 6.6.2 6.6.3
Inter-RAT Redirection............................................................................................. 81 Topology ................................................................................................................. 81 Test Specification................................................................................................... 82 Test Result ............................................................................................................. 83 Inter-RAT PS HO.................................................................................................... 85 Topology ................................................................................................................. 85 Test Specification................................................................................................... 85 Test Result ............................................................................................................. 86 CCO........................................................................................................................ 91 Topology ................................................................................................................. 91 Test Specification................................................................................................... 91 Test Result ............................................................................................................. 91 CSFB ...................................................................................................................... 96 Inter-RAT Load Balance......................................................................................... 96 Topology ................................................................................................................. 96 Test Specification................................................................................................... 96 Test Result ............................................................................................................. 97 Inter-RAT Cell Reselection .................................................................................. 101 Topology ............................................................................................................... 101 Test Specification................................................................................................. 101 Test Result ........................................................................................................... 101
7
Related Counters, KPI and Alarm .................................................................... 104
7.1 7.1.1 7.1.2 7.1.3 7.2 7.2.1
Inter-RAT Redirection Function Related Counters, KPI and Alarm .................... 104 Inter-RAT Redirection Function Related Counters .............................................. 104 Inter-RAT Redirection Function Related KPI....................................................... 105 Inter-RAT Redirection Function Related Alarm ................................................... 105 Inter-RAT PS HO Function Related Counters, KPI and Alarm ........................... 105 Inter-RAT PS HO Function Related Counters ..................................................... 105
4 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
7.2.2 7.2.3 7.3 7.3.1 7.3.2 7.3.3 7.4 7.4.1 7.4.2 7.4.3 7.5 7.5.1 7.5.2 7.5.3 7.6 7.6.1 7.6.2 7.6.3
Inter-RAT PS HO Function Related KPI .............................................................. 109 Inter-RAT PS HO Function Related Alarm .......................................................... 109 CCO Function Related Counters, KPI and Alarm ............................................... 109 CCO Function Related Counters ......................................................................... 109 CCO Function Related KPI .................................................................................. 109 CCO Function Related Alarm .............................................................................. 110 CSFB Function Related Counters, KPI and Alarm .............................................. 110 CSFB Function Related Counters ....................................................................... 110 CSFB Function Related KPI ................................................................................ 111 CSFB Function Related Alarm............................................................................. 111 Inter-RAT Load Balancing Function Related Counters, KPI and Alarm ............. 111 Inter-RAT Load Balancing Function Related Counters ....................................... 111 Inter-RAT Load Balancing Function Related KPI ................................................ 112 Inter-RAT Load Balancing Function Related Alarm ............................................ 112 Inter-RAT Cell Reselection Function Related Counters, KPI and Alarm ............ 112 Inter-RAT Cell Reselection Function Related Counters ...................................... 112 Inter-RAT Cell Reselection Function Related KPI ............................................... 112 Inter-RAT Cell Reselection Function Related Alarm ........................................... 112
8
Abbrev iations..................................................................................................... 113
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 5
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
FIGURES Figure 4-1
LTE CSFB Handover Procedure ......................................................................... 10
Figure 4-2
Inter-RAT Handover ............................................................................................. 12
Figure 4-3
Blind Redirection .................................................................................................. 13
Figure 4-4
Measurement Based Redirection ........................................................................ 14
Figure 4-5
Measurement Based Inter-RAT Redirection ....................................................... 15
Figure 5-1
Configure Inter-RAT Neighbor Cell Parameters.................................................. 22
Figure 5-2
Configure Inter-RAT Neighbor Relation Parameters........................................... 24
Figure 5-3
Configure Measurement Parameters for UTRAN ............................................... 25
Figure 5-4
Configure Measurement Parameters for GERAN ............................................... 26
Figure 5-5
UE Access Mode Configuration ........................................................................... 27
Figure 5-6
Switch Configuration of Redirection .................................................................... 30
Figure 5-7
RAT Priority Configuration ................................................................................... 31
Figure 5-8
UTRAN Frequency Redirection Priority Configuration ........................................ 31
Figure 5-9
UTRAN Frequency Redirection Priority Configuration ........................................ 32
Figure 5-10 UE Capability Information .................................................................................. 35 Figure 5-11 UE Capability Information .................................................................................. 37 Figure 5-12 Configuration of CSFB Based Measurement Switch and Method of CSFB ..... 43 Figure 5-13 CSFB Target System Priority Configuration for UE in RRC_IDLE state .......... 44 Figure 5-14 CSFB Target System Priority Configuration for UE in RRC_CONNECTED state .................................................................................................................................................. 45 Figure 5-15 UTRAN Frequency CSFB Priority Configuration ............................................... 45 Figure 5-16 GERAN Frequency CSFB Priority Configuration .............................................. 46 Figure 5-17 Switch for CS Fallback base LAI and Multi-PLMN local strategy for CSFB ..... 47 Figure 5-18 Local Strategy for Multi-PLMN Configuration .................................................... 47 Figure 5-19 Setting UE to Support CS Domain and PS Domain.......................................... 48 Figure 5-20 Call Manager Usage .......................................................................................... 49 Figure 5-21 Load Balancing Function parameters Configuration ......................................... 55 Figure 5-22 User-inactivity Switch Configuration .................................................................. 73
6 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 5-23 User- Inactivity Timer on Control Panel Configuration ...................................... 74 Figure 5-24 E-UTRAN Cell Reselection Parameters Configuration ..................................... 75 Figure 5-25 UTRAN FDD Cell Reselection Configuration ................................................. 77 Figure 5-26 UTRAN TDD Cell Reselection Configuration ................................................. 78 Figure 5-27 GERAN Cell Reselection Configuration ............................................................ 79 Figure 6-1
Inter-RAT Redirection Test Environment Network .............................................. 81
Figure 6-2
RRC Connection Reconfiguration Message Carries the A2 Event ..................... 83
Figure 6-3
UE Reports the A2 Measurement Report............................................................ 84
Figure 6-4 Sending the UTRAN Frequency to the UE Through the RRC Connection Release Message ................................................................................................................................... 84 Figure 6-5 Sending the GERAN Frequency to the UE Through the RRC Connection Release Message ..................................................................................................................... 85 Figure 6-6
UE Capacity Query Message .............................................................................. 87
Figure 6-7
A2 Event in the RRC Connection Reconfiguration Message.............................. 87
Figure 6-8
UE Reports A2 Measurement .............................................................................. 87
Figure 6-9 eNodeB Instructs the UE to Measure the Frequency, Cell ID, and B2 Threshol d of the UTRAN Neighbor Cell .................................................................................................... 88 Figure 6-10 UE Reports the B2 Event ................................................................................... 88 Figure 6-11 eNodeB Requests Capacities and UE Reports Capacities............................... 89 Figure 6-12 E-UTRAN Sends the Mobility From E-UTRA Command message to the UE .. 89 Figure 6-13
UE Sends the handoverToUTRANComplete Message to the RNC ................. 90
Figure 6-14 UE Originates the RAU Flow ............................................................................. 90 Figure 6-15 Querying Whether the UE Supports the CCO Feature ..................................... 92 Figure 6-16 eNodeB Sends A2 Event Configuration Through RRC Connction Reconfiguration Message......................................................................................................... 93 Figure 6-17 UE Reports the A2 Event Measurement reporting After A2 Threshold Is Reached ................................................................................................................................... 93 Figure 6-18 eNodeB Delivers B2 Event Configuration Through the RRC Connection Reconfiguration Message......................................................................................................... 94 Figure 6-19 eNodeB Sends MobilityFromEutranCommand with Purpose CellChangeOrder to the UE ................................................................................................................................... 95
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 7
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 6-20 eNodeB Sends MobilityFrom EutranCommand without SI Information to the UE .................................................................................................................................................. 95 Figure 6-21 RIM Message Sent by the eNodeB ................................................................... 97 Figure 6-22 RIM Message Received by the eNodeB ........................................................... 98 Figure 6-23 eNodeB sends RRC Connection Reconfiguration message including B1 measurement configuration...................................................................................................... 99 Figure 6-24 UE2 Reports the Measurement Reporting ...................................................... 100 Figure 6-25
UE2 Originates a Handover to the UMTS Cell ................................................ 100
Figure 6-26
SIB7 Message .................................................................................................. 102
Figure 6-27
SIB6 Message .................................................................................................. 103
Figure 6-28 UE Reselects the UMTS/GSM Cell and Originates the RAU Flow ................. 104
8 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
TABLES Table 5-1
Common Parameters List ..................................................................................... 17
Table 5-2
Parameters Configuration rule .............................................................................. 17
Table 5-3
Parameters List ..................................................................................................... 27
Table 5-4
Parameters Configuration rule .............................................................................. 28
Table 5-5
Inter-RAT PS HO Parameters List........................................................................ 33
Table 5-6
Inter-RAT PS HO Parameters Configuration rule................................................. 33
Table 5-7
Parameters List ..................................................................................................... 37
Table 5-8
Parameters Configuration rule .............................................................................. 38
Table 5-9
Parameters List ..................................................................................................... 50
Table 5-10 Parameters Configuration rule ............................................................................ 51 Table 5-11 Parameters List ................................................................................................... 57 Table 5-12 Parameters Configuration rule ............................................................................ 59 Table 6-1
Test Devices .......................................................................................................... 82
Table 6-2
Inter-RAT Redirection Test ................................................................................... 82
Table 6-3
Inter-RAT PS HO Test .......................................................................................... 85
Table 6-4
CCO Feature Test ................................................................................................. 91
Table 6-5
Inter-RAT Load Balance Test ............................................................................... 96
Table 6-6
Inter-RAT Cell Reselection Test ......................................................................... 101
Table 7-1
Inter-RAT Redirection Function Related Counters ............................................. 104
Table 7-2
Inter-RAT PS HO Function Related Counters .................................................... 105
Table 7-3
Inter-RAT PS HO Function Related KPI ............................................................. 109
Table 7-4
CCO Function Related Counters ........................................................................ 109
Table 7-5
CSFB Function Related Counters....................................................................... 110
Table 7-6
Inter-RAT Load Balancing Function Related Counters ...................................... 111
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 1
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
1
Introduction
1.1
Scope This document describes inter-RAT interoperability, including technical description, key parameter configuration, related counters, KPI statistics, alarms, and function verification.
1.2
Target Group This document is intended for:
1.3
Personnel who nee d to understand FDD Inter- RAT Int eroperability function
Personnel who work with ZTE products
Feature Attribute
For FDD single-mod e eNodeB V3.20.30 series: OMMB version: V12.13.44 EMS version: V12.13.44
For GUL multi-mod e eNodeB V4.13.10 s eries: OMMB version: V12.13.42 EMS version: V12.13.42
Note: FDD single-mode V3.20.30 corresponds to GUL multi-mode V4.13.10, and LTE technology description and operation requirements in the corresponding versions are the same.
2 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Involved NEs: UE
√
eNodeB
MME
√
√
S-GW -
BSC/RNC -
SGSN -
P-GW
HSS
-
-
Note: *-: Not involved
*√: involved
1.4
Correlation with Other Features None
2
Terminology
2.1
Definitions None.
3
Feature Introduction In the LTE system, the UE mobility in connected state is fulfilled through handover and redirection. The handover is divided into intra-RAT handover (between E-UTRAN and E-UTRAN) and inter-RAT handover (between E-UTRAN and UTRAN, or between E-UTRAN and GERAN) in accordance with the network structures. The intra-RAT handover is divided into intra-frequency and inter-frequency handover in accordance with the frequency points. The intra-RAT handover is also divided into intra -eNodeB, X2, and S1 handover in accordance with the LTE system interfaces. This document describes the handover-related measurements, inter-RAT handover decision, and inter-RAT handover procedure, and focuses on enhanced CSFB and the RSCP&Ec/No based m obility management functions.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 3
ZTE LTE LTE FDD Inter-RAT Inter-RAT Interoperab ility Feature Guid e
3.1
Overview LTE services services are classified as data and voice voice ser vic es. For data data ser vices, vices, the inter-RAT interoperability feature includes handover, CCO, and redirection, which can be triggered based on measurement, load, or blind handover. For voice services, the inter-RAT interoperability feature includes SRVCC and CSFB. The SRVCC is triggered based on the inter-RA inter-RA T B1/B2 B1/B2 measurement report. report. The blind CSFB or me asurement asurement -based -based CSFB can be be used.
3.2
RSCP & Ec/N Ec/ No Based Mobility Mobil ity Management For a handover from LTE to UMTS, if the RSCP and Ec/No of the target cell do not change in the same way, an incorrect handover decision may be made. Therefore, the mixed measurement mechanism of UMTS is added to the R10 version. The eNodeB specifies that UEs report both RSCP and Ec/No in measurement reports. When the two measurement measureme nt items are reported, repo rted, the eNodeB conside rs both of of them and select s an appropriate UMTS target cell for hand hand over.
3.3
Service Based Handover Voice services are different from data services. For example, users are sensitive to voice services while data services have a buffering feature. Operators hope that different handover thresholds are specified for voice and data services. In the current version, the inter-RAT A2 and B2 measurements are delivered based on the service type (voice or data service). service).
4
Technical Description
4.1
Measurement After a UE acc esses the system, sy stem, the eNodeB delivers the measureme me asureme nt con figuratio figuratio n to the UE through the RRC connection reconfiguration reconfiguration mess age.
4 ZTE Confidential Confid ential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. reserved.
ZTE LTE LTE TDD Inter-RAT Inter-RAT interop erability Feature Guid e
The handover-related measurement configuration is delivered in the following five scenarios:
Only Only the the neighbor cells with the same frequency frequency exist. exist. a)
For initial acc access, ess, the eNodeB delivers a m easurement (A3/A5 (A3/A5 event) for intra-frequency handover. If the redirection switch is turned on, and there is an available different frequency or inter-RAT frequency, the eNodeB also delivers the A2 measurement for redirection.
b)
If the eNodeB receives receives the the intra -frequency -frequency measurement report, report, it makes a handover decision, and originates handover. If not, go to the next step.
c)
If the th e eNodeB recei receives ves the th e A2 measurem ent report for for redirection, redirec tion, it performs blind redirection in accordance with Section 4.6.
Only the inter-frequ ency neighbor cells exist. exist . a)
For initial access, acces s, the eNodeB delivers the A2 measurement measureme nt for for opening openi ng inter-frequency inter-frequency measureme measureme nt.
b)
After After receiving the A2 measurement report for opening inter-frequency measurement, the eNodeB delivers a measurement (A3/A5 event) for inter-frequency handover, opens Gap, delivers the A1 measurement for closing inter-frequency measurement, and deletes the A2 measurement for opening inter-frequency measurement. If the UE redirection switch is turned on, and there is an available redirection frequency, the eNodeB delivers the A2 measurement for redirection. Go to the next step.
c)
If the eNodeB eNodeB receives receives the inter -frequency -frequency measurement measurement report, report, it makes a handover decision, and originates handover. If not, go to the next step.
d)
If the eNodeB receives receives the A2 measurement report for redirection, redirection, it performs blind redirection in accordance with Section 4.6. If not, go to the next step.
e)
After receiving the A1 measu measurement rement rep ort, the eN odeB deletes the A1 measurement configuration, closes Gap, and deletes the inter-frequency
ZTE Confidential Confid ential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. reserved. 5
ZTE LTE LTE FDD Inter-RAT Inter-RAT Interoperab ility Feature Guid e
handover
measurement
configuration.
If
the
A2
measurement
configuration for redirection exists, the eNodeB deletes it, and delivers the A2 measurement for opening inter-frequency measurement, that means means the e NodeB returns to a) status.
Only the inter-RAT inter-RA T neighbor cells exist. exist . a)
For initial access, acces s, the eNodeB delivers the A2 measurement measureme nt for for opening openi ng inter-RAT inter-RAT measurement.
b)
After After receiving receiving the A2 measurement measurement report for opening int int er-RAT er-RAT measurement, the eNodeB delivers a measurement (B2/B1 event) for inter-RAT handover, opens Gap, delivers the A1 measurement for closing inter-RAT measurement, and deletes the A2 measurement for opening inter-RAT measurement. If the UE redirection switch is turned on, and there is an available redirection frequency, the eNodeB delivers the A2 measurement measu rement for redir ection.
c)
If the eNodeB eNo deB recei ves the inter-RA T handover handove r measurem ent report, repo rt, it makes a handover decision, and originates handover. If not, go to the next step.
d)
If the th e eNodeB recei receives ves the th e A2 measurem ent report for for redirection, redirec tion, it performs blind redirection in accordance with Section 4.6. If not, go to the next step.
e)
After receiving the A1 measu measurement rement report, rep ort, the eN odeB deletes the A1 measurement configuration, closes Gap, and deletes the inter-RAT handover
measurement
configuration.
If
the
A2
measurement
configuration for redirection exists , the eNodeB eNodeB deletes it, and deli deli vers vers the A2 measurement for opening inter-RAT measurement, that means the eNodeB returns to a) status.
Inter-frequency and inter-RAT neighbor cells exist, exist , and interFandInterR is set to 0 (delivering (delivering the inter-frequency inter-frequency and inter-RAT measurements at the same time). time).
6 ZTE Confidential Confid ential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
a)
For initial access , the eNodeB delivers the bigger one (called initial A2 measurement) of the A2 measurements for opening inter-frequency measurement and inter-RAT measurement.
b)
After recei ving the initial A2 measurem ent report, the eNode B delivers the measurement configuration (A3/A5 event) for inter-frequency handover and measurement configuration (B2/B1 event) for inter-RAT handover, opens Gap, delivers the A1 measurement for closing inter-frequency and inter-RAT measurement, and deletes the initial A2 measurement. If the UE redirection switch is turned on, and there is an available
redirection
frequency,
the
eNodeB
delivers
the
A2
measurement for redirection. Go to the next s tep. c)
If the eNodeB receives the inter -frequency measurement report, it makes a handover decision, and originates handover. If not, go to the next step.
d)
If the eNodeB recei ves the inter-RA T handove r measurem ent report, it makes a handover decision, and originates handover. If not, go to the next step.
e)
If the eNodeB receives the A2 measurem ent report for redirection, it performs blind redirection in accordance with Section 4.6. If not, go t o the next step.
f)
After receiving the A1 measurem ent rep ort, the eN odeB deletes the A1 measurement configuration, closes Gap, and deletes the inter-frequency and
inter-RAT
handover
measurement
configuration.
If
the
A2
measurement configuration for redirection exists, the eNodeB deletes it, and delivers the initial A2 measurement, that mea ns the eNodeB returns to a) status.
Inter-frequency and inter-RAT neighbor cells exist, and interFandInterR is set to 1 (delivering
the
inter-frequency
measurement
first,
and
then
the
inter-RAT
measurement). a)
For initial access, the eNodeB delivers the A2 measurement for opening inter-frequency measurement.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 7
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
b)
After recei ving
the A2 measurement
for opening
inter-frequency
measurement, the eNodeB delivers the measurement configuration (A3/A5 e vent) for inter-frequency ha ndover, deletes the A2 measurement for opening inter-frequency measurement, delivers the A2 measurement (B2/B1 event) for opening inter-RAT measurement, opens Gap, and delivers the A1 measurement for closing inter-frequency and inter-RAT measurement. Go to the next step. c)
If the eNodeB receives the inter -frequency measurement report, it makes a handover decision, and originates handover. If not, go to the next step.
d)
If the eNodeB receives the A1 measurement report, it deletes the measurement
configuration
for
inter-frequency
handover
and
A2
measurement for opening inter-RAT measurement, and delivers the A2 measurement for opening inter-frequency measurement, that means the eNodeB returns to a) status. If not, go to the next step. e)
If the eNodeB recei ves the A2 measurem ent report for ope ning inter-RAT measurement, it delivers the measurement configuration (B2/B1 event) for inter-RAT handover, and deletes the A2 measurement for opening inter-RAT measurement. If the UE redirection switch is turned on, and there is an available redirection frequency, the eNodeB delivers the A2 measurement for redirection. Go to the next s tep.
f)
If the eNodeB receives the measurem ent report for inter-RAT hand over, it makes a handover decision, and originates handover. If not, go to the next step.
g)
If the eNodeB receives the A2 measurem ent report for redirection, it performs blind redirection in accordance with Section 4.6. If not, go to the next step.
h)
After receiving the A1 measurement rep ort, the eN odeB deletes the A1 measurement configuration, closes Gap, and deletes the inter-frequency and
inter-RAT
handover
measurement
configuration.
If
the
A2
measurement configuration for redirection exists, the eNodeB deletes it,
8 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
and delivers the A2 measurement for opening inter-frequency handover, that means the eNodeB returns to a) status. Note: During the inte r-frequency or i nter-RA T measurement, if the UE ca pacity indicates that Gap is not needed, Gap will not be enabled.
4.2
LTE-to-UTRAN Handover Decision After recei ving the UTRAN handover measurement report, the eNodeB makes a handover decision in accordance with the UE capacity and neighbor cell configuration. To perform PS HO, the following conditions should be met: 1.
The UE supports UTRAN PS HO (FGI bit 8).
2.
The UTRAN supports PS HO.
3.
The neighbor cell relation supports HO.
If there are candidate cells that support PS HO in the measurement report, the eNodeB sorts them in accordance with radio quality, and originates inter-RAT handover from LTE to UTRAN in order.
4.3
LTE-to-GERAN Handover Decision After recei ving the GERAN handover measurement report, the eNodeB makes a handover decision in accordance with the UE capacity and neighbor cell configuration. To perform CCO, the following condition should be met:
The UE supports CCO (FGI bit 10).
If there are candidate cells that support CCO in the measurement report, the eNodeB sorts them in accordance with channel quality, and originates inter-RAT handover from LTE to GERAN in order. Note: The current version does not suppo rt PS HO from LTE to GERAN.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 9
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
4.4
LTE CSFB with PS Handover Decision At the initial stage of LTE network development, the core network does not have an IMS, so the LTE network cannot provide voice services. In this case, voice services can be provided by inter-RAT neighbor cells through CSFB. When the eNodeB receives the INITIAL CONTEXT SETUP REQUEST message or UE CONTEXT MODIFICATION REQUEST message from the MME, in which CS Fallback I ndicator IE is included, the
eNodeB originates the CSFB flow. The CSFB includes two modes: blind CSFB and measurement based CSFB.
LTE CSFB to UTRAN When a UE originates a voice service, the LTE system instructs the UE to perform PS HO, or redirect to the UTRAN system, which provides the voice service for the UE.
LTE CSFB to GERAN When a UE originates a voice service, the LTE system instructs the UE to perform PS HO or CCO, or redirect to the GERAN system, which provides the voice service for the UE. Note: The current version does not support PS HO from LTE to GERAN.
The detailed flow is shown in the following figure.
Figure 4-1
LTE CSFB Hando ver Procedure
10 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
eNB
UE
MME
Extended Service Request
. . .
IF A Message
A、INITIAL CONTEXT SETUP REQUEST or B 、UE CONTEXT MODIFICATION REQUEST
RRCConnectionReconfiguration RRCConnectionReconfigurationComplete INITIAL CO NTEXT SETUP RESPONSE
eNB Decides whether CSFB needs InterRat NeiborCell Measure
IF B and need measure
RRCConnectionReconfiguration(B1/B2) RRCConnectionReconfigurationComplete MeasurementReport UE CONTEXT MODIFICATION RESPONSE
Trigger CSFB Mobility（eNB Decides Handover or redirection）
IF Handover
HANDOVER REQUIRED HANDOVER COMMAND
MobilityFromEUTRACommand UE CONTEXT RELEASE COMMAND
IF Redirection
UE CONTEXT RELEASE REQUEST UE CONTEXT RELEASE COMMAND RRCConnectionRelease
For detailed information about LTE CSFB, please refer to ZTE LTE FDD Voice Service CSFB Feature Guide.
4.5
Inter-RAT Handov er The E-UTRAN instructs the UE in RRC_connected state to hand over from E-UTRAN to UTRAN (through PS HO) or GERAN (through PS HO/CCO) by sending the MOBILITY FROM EUTRA COMMAND message (carrying Handover or CellChangeOrder I E).
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 11
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 4-2
Inter-RAT Hando ver
UE
eNB
MME
MeasurementReport HandoverRequired
HandoverCommand MobilityFromEutraCommand UeContextReleaseCommand UeContextReleaseComplete
The inter-RA T hando ver procedure is as follows: 1.
The eNodeB sends the HandoverRequired message to the MME. The MME interacts with other systems, and the target system establishes UE context.
2.
After interacting with other systems, the MME sends the Handover Command message to the eNodeB.
3.
The eNodeB sends the MobilityFromEutraCommand message to the UE, and the UE performs the random access procedure to access another sys tem.
4.
After the UE hands over to the target system, the MME notifies the eNodeB to release the UE context.
4.6
Redirection The UE mobility in connected state is fulfilled through PS HO, CCO, and redirection, which are per formed in the followin g order: PS HO > CCO > redirection
12 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
if the UE cannot perform PS HO or CCO, the eNodeB instructs it to redirect by sending the RRC CONNECTION RELEASE message that carries redirectedCarrierInfo IE. Redirection includes t wo modes: blind redirection and measurement based redirection.
Blind redirection
Figure 4-3
Blind Redirect ion
eNB
MME
UE MEASUREMENT REPORT (A2 measurement report for redirection
UE CONTEXT RELE ASE REQUEST UE CONTEXT RELEASE COMMAND UE CONTEXT RELEASE COMPLETE
RRCCONNECTION RELEASE
After recei ving the A2 measurem ent report for blind redirect ion, the eNodeB makes a blind redirection decision. 1.
The eNodeB selects a system as the target sys tem. The target system must be supported by the UE, and its priority (ratPriorityPara) is the highest one and is not 0.
2.
The eNodeB selects a frequency of the target sys tem as the target frequency. The target frequency must be supported by the UE, and its priority is the highest one and is not 0. If there is an available frequency, go to Step 4. If not, go to the next step.
3.
If there is no available freq uency in the target sys tem, the eNodeB selects another system as the target system. The target system must be supported by the UE, and its priority is the second highest one and is not 0. Go to Step 2.
4.
The eNodeB sends the selected frequency to the UE.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 13
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Measurement based redirection
Figure 4-4
Measurem ent Based Redirection
UE
eNB
MEASUREMENT REPORT Measurement report inter-frequency handover
MME
for UE CONTEXT RELEASE REQUEST UE CONTEXT RELEASE COMMAND UE CONTEXT RELEASE COMPLETE
RRCCONNECTION RELEASE
Inter-frequency redirection
After recei ving the inter- frequ ency handover measurement report, the UE redirects to the frequency indicated in the m easurement rep ort if the following conditions are met: a)
The UE does not support inter- frequ ency handove r, or (and) the neighbor cell does not sup port h andover, o r
b)
The measurement report only includes unknown PCI, or
c)
The measurem ent report includes unknown PCI, and all known PCI attempts fail, and
d)
The measurement report does not include the cell that is limited by the handover limit list.
Inter-RAT redirection
14 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 4-5
Measurem ent Based Inter-RA T Redirection UE
eNB
MME
MEASUREMENT REPORT Measurement report for
REQUEST
inter-RAT hando ver
UE CONTEXT RELEASE UE CONTEXT RELEASE COMMAND UE CONTEXT RELEASE COMPLETE
RRCCONNECTION RELEASE
After recei ving the inter- RAT handove r measurem ent report, the UE redirects to the system and frequency indicated in the measurement report if the following conditions are met: a)
The UE does not support inter-RAT handover, or (and) the neighbor cell does not sup port handover, and
b)
When the measurem ent report is GERAN, the UE does not support CCO, or
c)
The measurement report only includes unknown PCI, or
d)
The measurem ent report includes unknown PCI, and all known PCI attempts fail.
After
recei ving
the
RRC
CONNECTION
RELEASE
message
that
carries
redirectedCarrierInfo IE, the UE redirects to the corresponding frequency of the corresponding syst em.
4.7
RSCP & Ec/No Based Mobility Management In the inter-RAT B1/B2 measurement configuration of UTRAN-FDD, if ReportQuantity is set to both, the eNodeB will deliver reportQuantityUTRA-FDD-r10 in the measurement
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 15
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
configuration, instructing UEs to report both RSCP and Ec/No in measurement reports. When TriggerQuantity is CPICH_RSCP, and ReportQuantity is both, the eNodeB needs to sort the cells again in accordance with CPICH_EC/No. If both RSCP and Ec/No need to be reported in the inter-RAT B1/B2 measurement of UTRAN-FDD, the filtering coefficient of another ReportQuantity needs to be configured in the Layer-3 filtering coefficient in UTRAN measurement.
4.8
Service Based Handover The int er-RA T A2 and B2 measurements are d elivered b ased on the service type (voice or data service). The measu rement mechanis m is as follows:
Before the A2/B2 measurement is delivered, it is necessary to check the current service type. If a voice service exists, the eNodeB needs to deliver the voice measurement. Otherwise, the eNodeB deliver the data measurement.
When a voice ser vice is esta blished, the eNodeB needs to change the current data A2/B2 measurem ent to voice A2/B2 measurem ent. If t he UE is at the edge of th e cell, the above-mentioned measurement re-configuration can be triggered only when the di fference between the voice and data me asurement thresholds exceeds the re-configuration threshold.
When the voice ser vice is released, the eNodeB needs to change the current voice A2/B2 measureme nt to data A2/B2 measurement. If the UE is at the edge of the cell, the above-mentioned measurement re-configuration can be triggered only when the difference between the voice and data measurement thresholds exceeds the re-configuration t hreshold.
16 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
5
Key Parameters and Configuration
5.1 5.1.1
Inter-RAT Operation Function Parameters List
Table 5-1
Common Parameters List
SN
5.1.2
Para meters Name (English)
Figure
1
Neighbor Cell Configuration
Figure 5-1
2
Neighbor Relation Configuration
Figure 5-2
3
UTRA N-Frequency Numbe r
Figure 5-3
4
UTRAN-Frequency Measurement Configuration
Figure 5-3
5
Duplex Mode
Figure 5-3
6
Band Indicat or for FDD DL Freque ncy
Figure 5-3
7
UTRA N FDD Frequency
Figure 5-3
8
Band Indicat or for FDD DL Frequency
Figure 5-3
9
UTRA N FDD Frequency
Figure 5-3
10
GERAN- Frequency Numbe r
Figure 5-4
11
GERAN-Frequency Measurement Configuration
Figure 5-4
12
The First ARFCN Value
Figure 5-4
13
Band Indicati on
Figure 5-4
14
GERAN Frequency
Figure 5-4
15
The Number of Explicit ARFCN
Figure 5-4
16
ARFCN Detailed List
Figure 5-4
Parameters Configuration rule
Table 5-2 SN
Parameters Configuration rule
Parameter s Name
ZTE Confidential Proprietary
Description
Value Range
Default Value
© 2015 ZTE CORPORATION. All rights reserved. 17
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
1
2
UTRAN-Fre
This parameter is used to
quency
present the UTRAN
Number
frequency number.
Duplex Mode
This parameter is used to determine UTRAN duplex mode, FDD or TDD
0-32
enum(FDD,FD D)
0
FDD
UTRA-FDD: enum(0:1,1:2,2 :3,3:4,4:5,5:6,6 :7,7:8,8:9,9:10,
3
Band
This parameter is used to
Indicator for
configure the band
FDD DL
indicator for UTRAN
Frequency
downlink frequency.
10:11,11:12,12 :13,13:14,14:1 9,16:20,15:21, 17:22,18:25,19 :26) UTRA-FDD: enum （0:a,1:b,2:c,3
:d,4:e,5:f ）
18 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
UTRA-FDD:1[0] UTRAN-FDD: a[0]
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
UTRA-FDD: (I:2112.4-2167 .6, II:1932.4-1987. 6, III:1807.4-1877 .6, IV:2112.4-215 2.6, V:871.4-891.6, VI:877.4-882.6 ,VII:2622.4-26 87.6, VIII:927.4957.6, IX:1847.4-187 7.4, X:2112.4-2167 .6, XI:1478.4-149 3.4, XII:731.4-743. 6, 4
UTRAN
This parameter is used to
XIII:748.4-753.
UTRA-FDD:2140
FDD
configure the UTRAN
6,
UTRAN-FDD:191
Frequency
central frequ ency.
XIV:760.4-765.
0
6, XIX:877.4-887. 6,XX:793.4-81 8.6,XXI:1498.4 1508.4,XXII:35 12.4-3587.6,X XV:1932.4-199 2.6,XXVI:861.4 -891.6)MHZ,st ep 0.2MH Z
UTRA-FDD: (a:1900-1920, 2010-2025,b:1 850-1910,1930 ZTE Confidential Proprietary
-1990,c:1910-
© 2015 ZTE CORPORATION. All rights reserved.
1930,d:2570-2 620,e:2300-24 00,f:1880-1920 )MHz,step
19
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
The parameter indicates the numbers of GERAN Frequency Group. The GERAN5
Frequency Number
GERAN carrier frequencies are organized in groups and the cell
0-16
0
0-1023
0
reselection parameters are provided per group of GERAN carrier frequencies.
6
The First
This parameter is used to
ARFCN
configure the first ARFCN
Value
of GERAN neighbor cell This parameter indicates how to interpret an associated GERAN carrier ARFCN. More s pecifically,
7
the IE indicates the
enum
GERAN frequency band
（GSM900,EX
Band
in case the ARFCN value
T900,R-GSM,
Indication
can concern either a DCS
DCS1800,
1800 or a PCS 1900
PCS1900,GS
carrier frequency. For
M850）
ARFCN values not associated with one of these bands, the indicator has no meaning.
20 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
GSM900
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
{geranBand== 0}[1..124] step 1,{geranBand= =1}[0..124][97 5..1023] step
This parameter is used to 8
GERAN
configure the GERAN
Frequency
system measurement frequency.
1,{geranBand=
{geranBand==0}[1
=2}[0..124][95
],{geranBand==1}[
5..1023] step
0],{geranBand==2
1,{geranBand=
}[0],{geranBand==
=3}[512..885]
3}[512],{geranBan
step
d==4}[512],{geran
1,{geranBand=
Band==5}[128]
=4}[512..810] step 1,{geranBand= =5}[128..251] step 1
9
The
This parameter is used to
number of
configure the detailed
Explicit
ARFCN number o f
ARFCN
GERAN.
0-31
0
0-1023
0
This parameter is used to configure the detail list of ARFCN. The group 10
ARFCN detailed list
number is the same as the GERAN carrier frequency number, the effective value number of each group equal to the detail ARFCN number.
5.1.3
Parameters Configuration Procedure
5.1.3.1
Function Activation 1.
Inter-RAT Neighbor Cell parameter configurati on: In the Configuration Management window on the EMS or OMMB, select Modify Area > Radio Parameter > LTE FDD > Neighbor Cell Configuration > UTRAN
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 21
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
FDD Neighbor Cell or Modify Area > Radio Parameter > LTE FDD > Neighbor Cell Configuration > GSM Neighbor Cell, configure the parameter, see Figure 5-1.
Figure 5-1
Configure Inter-RAT Neighbor Cell Paramet ers
UTRAN FDD Neighbor Cell Configu ration
GERAN Neighbor Cell Configuration
22 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
2.
Inter-RAT Neighbor Relation parameter configuration: In the Configuration Management window on the EMS or OMMB, select Modify Area > Radio Parameter > LTE FDD > Neighbor Relation Configuration > UTRAN Neighbor Relation or Modify Area > Radio Parameter > LTE FDD > Neighbor Relation Configuration > GSM Neighbor Relation , configure the parameters, see Figure 5-2.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 23
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 5-2
Configure Inter-RAT Neighbor Relation Paramet ers
UTRA N Neighbor Relation Configuration
GERAN Neighbor Relation Configuration
3.
Configure Measurement Parameters for UTRAN: Select Modify Area> Radio Parameter > LTE FDD > E-UTRAN FDD Cell >Measureme nt Parameter ,configure the parameters, see Figure 5-3.
24 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 5-3
4.
Configure Measurement Parameters for UTRA N
Configure Measurement Parameters for GERAN: Select Modify Area> Radio Parameter > LTE FDD > E-UTRAN FDD Cell >Measureme nt Parameter ,configure the parameters, see Figure 5-4.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 25
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 5-4
5.1.3.2
Configu re Measurement Parameters for GERAN
Other Parameters Configuration QXDM configuration on UE Set the access mode of UE. Click View, the NV Brow ser window is displayed. Select 00010 Digital/Analog Mode Preference, see Figure 5-5.
26 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 5-5
5.1.3.3
UE Access Mode Configuration
Data Synchronization 1.
After modified the parameters, click
to save all the data.
2.
Select [Configuration Management->Data Synchronization ] from the main menu of the Configuration Management tab. The Data Synchronization dialog box opens. First select NE, then select synchronization mode as Incremental synchronization, then click Synchronize button.
5.1.3.4
Function Deactivation No.
5.2 5.2.1
Inter-RAT Redirection Function Parameters List
Table 5-3
Paramet ers List
SN
ZTE Confidential Proprietary
Parameter Name(English)
Figure
© 2015 ZTE CORPORATION. All rights reserved. 27
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
5.2.2
1
Redirection Algorith m for Co verage
Figure 5-6
2
RAT Priority
Figure 5-7
3
UTRA N Frequency Redirect ion Priority
Figure 5-8
4
GERAN Frequency Redirection Priority
Figure 5-9
Parameters Configuration rule Table 5-4 SN
1
Parameters Configuration rule
Parameters Name
Description
Redirection
This is a switch for the
Algorithm for
algorithm applied for
Coverage
coverage bas ed redirect.
Value Range 0:Close,1:O pen
Default Value
Open[1]
The parameter defines a array with size seven ,they're responded to the priority of EUTRA-FDD、EUTRA-TDD 、 GERAN 、UTRA-FDD、 UTRA-TDD 、 2
RAT Priority
CDMA2000-HRPD and
0-255
CDMA2000-1xRTT . The priority value range of each RAT is from 0 to 255. Bigger value means higher priority. The value "0" means no cells exist in this RAT.
28 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
[254,255,0,0,0,0 ,0]
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
This array indicates the priority of candidate frequencies for Redirection target. eNB selects the target frequency based on this
3
UTRAN
information. The value range
Frequency
of each integer array member
Redirection
is from 0 to 255. A higher
Priority
value indicates a higher
0-255
0
0-255
0
priority. The default value 0 means the co rresponding frequency cannot be selected as redirection target frequency. This array indicates the priority of candidate frequencies for Redirection target. eNB selects the target frequency based on this
4
GERAN
information. The value range
Frequency
of each integer array member
Redirection
is from 0 to 255. A higher
Priority
value indicates a higher priority. The default value 0 means the co rresponding frequency cannot be selected as redirection target frequency.
5.2.3
Parameters Configuration Procedure
5.2.3.1
Function Activation 1.
Redirection Algorithm for coverage parameter configuration: In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell . Click modify the parameter, Click
ZTE Confidential Proprietary
button to
to save the configuration. See Figure 5-6.
© 2015 ZTE CORPORATION. All rights reserved. 29
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 5-6
2.
Switch Configuration of Redirection
RAT Priority configuration: In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell> Measurement Parameter, Click
button to modify the parameter, Click
configuration. See Figure 5 -7.
30 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
to save the
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 5-7
3.
RAT Priority Configuration
UTRAN Frequency Redirection Priority Configuration: In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell> Measurement Parameter, Click
button to modify the parameter, Click
to save the
configuration. See Figure 5 -8.
Figure 5-8
UTRAN Frequency Redirect ion Priority Configuration
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 31
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
4.
GERAN Frequency Redirection Priority Configuration: In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell> Measurement Parameter, Click
button to modify the parameter, Click
configuration. See Figure 5 -9.
Figure 5-9
5.2.3.2
UTRAN Frequency Redirect ion Priority Configuration
Other Parameters Configuration Please refer to 5.1.3.2
5.2.3.3
Data Synchronization Please refer to 5.1.3.3.
5.2.3.4
Function Deactivation Redirection Algorithm for coverage parameter con figuration:
32 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
to save the
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell . Click Redirection Algorithm for Coverage to be Close , Click
button to modify
to save the configuration. See
In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell> Measurement Parameter, Click button to modify the parameter, Click
to sa ve the configuration. See Figu re 5 -8.
.
5.3 5.3.1
Inter-RAT PS HO Function Parameters List
Table 5-5
Inter-RAT PS HO Paramete rs List
SN
5.3.2
Parameter Name(English)
Figure
1
UTRAN neighbor cell supported PS HO
Figure 5-1
2
PS HO supporte d by GERAN neighbor cell
Figure 5-1
3
Handover supported
Figure 5-2
Parameters Configuration rule
Table 5-6 SN
Inter-RAT PS HO Paramete rs Configuration rule
Paramete rs Name UTRAN neighbor
1
cell supported PS HO
ZTE Confidential Proprietary
Description
Value Range
Default Value
PS HO capability for UTRAN-FDD neighbor cell. When UTRAN-FDD neighbor
enum(No,
cell support the capability.
Yes).
Yes
Service cell can trigger PS handover.
© 2015 ZTE CORPORATION. All rights reserved. 33
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
PS HO supported 2
by GERAN neighbor cell
supported
Handover
4
HO capability for GSM neighbor cell. When GSMD
enum(No,
neighbor cell support the
Yes).
Yes
capability. Service cell can trigger PS handover.
Handover
3
The parameter indicates PS
supported
handover indication whether Server cell can handover to
0: Not Support； 1:Support
1
UTRAN neighboring cell
handover indication whether Server cell can handover to GSM neighboring cell
5.3.3
Parameters Configuration Procedure
5.3.3.1
Function activation
0: Not Support；
1
1:Support
1.
In
2.
In the Configuration Manag ement windo w on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell> Measurement Parameter, Click
button to modify the parameter, Click
to save the
configuration. See Figure 5 -8.
3.
, click
button, configure UTRAN neighbor cell supported PS HO and PS HO
supported by GE RAN neighbor cell to Yes. 4.
In
5.
In the Configuration Manag ement windo w on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell> Measurement Parameter, Click
button to modify the parameter, Click
configuration. See Figure 5 -8.
34 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
to save the
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
6.
5.3.3.2
, click
button, click
button, configure Handover supported to Support.
Other Parameters Configuration 1.
Please refer to chapter 5.1.3.2;
2.
UE Capability Information : When UE attach, examine UE capability In UE Capability Information. Se e Figure5-10. Whe n the bit 8 and th e bit 22 both e qual to 1, UE supports PS HO to UTRAN; When the bit 9 and the bit 2. both equal to 1 . UE supports PS HO to GERAN.
Figure 5-10
5.3.3.3
UE Capability Information
Data Synchronization Please refer to c hapt er 5.1.3.3.
5.3.3.4
Function Deactivation No.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 35
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
5.4 5.4.1
CCO Function Parameters List Please refer to table 5-1, the sn of the parameters is 1 , 2, 10~16.
5.4.2
Parameters Configuration rule Please refer to table 5-2.
5.4.3
Parameters Configuration Procedure
5.4.3.1
Function Activation Please refer to GERAN Related param eters configuration in chapter 5.1.3.1.
5.4.3.2
Other Parameters Configuration 1.
Please refer to chapter 5.1.3.2.
2.
UE Capability Information : When UE attaches and examines UE capability in UE Capability Information. See Figure5-11. When the bit 10 and the bit 230both equal to 1, UE supports CCO to GERAN.
36 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 5-11
5.4.3.3
UE Capability Information
Data Synchronization Please refer to chapter 5.1.3.3.
5.4.3.4
Function Deactivation No.
5.5 5.5.1
CSFB Function Parameters List
Table 5-7
Paramet ers List
SN
Parameter Name(English)
Figure
1
Inter-RAT neighbor relation
Figure5-2
2
CSFB Method of UTRAN
Figure 5-12
3
CSFB Method of GSM
Figure 5-12
4
Switch for CS Fallback Based Measurement
Figure 5-12
5
Target system of Idle Ue for CS Fallback
Figure5-1 3
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 37
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
5.5.2
6
Target system of Connected Ue for CS Fallback
Figure5-1 4
7
UTRAN Frequency CSFB Priority
Figure5-15
8
GERAN Frequency CSFB Priority
Figure5-16
9
Switch for CS Fallback base LAI
Figure5-17
10
Multi-PLMN local strategy for CSFB
Figure5-17
Parameters Configuration rule
Table 5-8 SN
1
Parameters Configuration rule
Paramete rs Name
Description
Value Range
The parameter indicates the
0 neighboring;
Inter-RAT
location relation between
1 same
neighbor
server cell and
coverage;
relation
UTRAN(GERAN)
2 Containing;
neighboring cell
3 Contained
Default Value
0: neighboring
This parameter indicates the prefer method of CS fallback to UTRAN. The 2
CSFB
default Priority configuration
Method of
is that PS HO > Redirection.
UTRAN
When the Lower priority
0:PS Handover,
PS
1:Redirection
Handover[0]
Configuration is set on OMC, Higher priority will not be considered. This parameter indicates the prefer method of CS fallback to GSM. The CSFB 3
Method of GSM
default Priority configuration is that PS HO > CCO>Redirection. When the Lower priority
0:PS Handover, 1:CCO, 2:Redirection
Configuration is set on OMC, Higher priority will not be considered.
38 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
Redirection[2]
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
This array indicates the priority of candidate RATs for CS Fallback. eNB selects the target RAT based on this information. From the first array member, each denotes the corresponding priority of GERAN, UTRA-FDD, Target syst em of 4
Idle Ue for CS Fallback
UTRA-TDD, and CDMA2000-1xRTT respectively. The value range of each integer array
0-255
[100,0,0,0]
member is from 0 to 255. A higher value indicates a higher priority. The default value 0 means there is no applicable neighbor cell for the corresponding RAT. Each non-isolated serving cell shall be configured with the redirect RAT priority for the corresponding neighboring cell(s).
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 39
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
This array indicates the priority of candidate RATs for CS Fallback. eNB selects the target RAT based on this information. From the first array member, each denotes the corresponding priority of GERAN, UTRA-FDD, Target syst em of 5
Connected Ue for CS Fallback
UTRA-TDD, and CDMA2000-1xRTT respectively. The value range of each integer array
0-255
[0,100,0,0]
member is from 0 to 255. A higher value indicates a higher priority. The default value 0 means there is no applicable neighbor cell for the corresponding RAT. Each non-isolated serving cell shall be configured with the redirect RAT priority for the corresponding neighboring c ell(s).
Switch for
6
CS
The parameter is a switch to
Fallback
control whether or not
[0: No,
Based
performing CSFB
1: Yes]
Measurem
measurement.
ent
40 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
0
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
This array indicates the priority of candidate frequencies for CSFB target. eNB selects the target frequency based on
7
UTRAN
this information. The value
Frequency
range of each integer array
CSFB
member is from 0 to 255. A
Priority
higher value indicates a
0-255
0
0-255
0
higher priority. The default value 0 means the corresponding frequency cannot be selected as CSFB target frequency. This array indicates the priority of candidate frequencies for CSFB target. eNB selects the target frequency based on
8
GERAN
this information. The value
Frequency
range of each integer array
CSFB
member is from 0 to 255. A
Priority
higher value indicates a higher priority. The default value 0 means the corresponding frequency cannot be selected as CSFB target frequency. If ucCSFBbaseLAI equal to 1,then PLMN indicated in
9
Switch for
Register ALI will priority to
CS
other candidate PLMNs ；
0:{Close},
Fallback
If ucCSFBbaseLAI equal to
1:{Open}
base LAI
0, then PLMN indicated in
Close
Register ALI will not priority to other candidate PLMNs ；
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 41
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
If ucMultiPLMNLocStofCSFB equal to 0,then Multi-PLMN local strategy for CSFB will Multi-PLM N local
10
strategy for CSFB
not be effective ； I If
0: {Close},
ucMultiPLMNLocStofCSFB equal to 1, then Multi-PLMN
1: {Open}
Close
local strategy for CSFB will be effective; And, the operator can configure different local strategy of CSFB for different PLMN.
5.5.3
Parameters Configuration Procedure
5.5.3.1
Function Activation 1.
Inter-RAT Neighbo r Relation parameter configuration: See Figu re5-2, configure Inter-RAT neighbor relation .
2.
Configure the switch for CS Fallback based measurement and Method of CSFB: i.
In the Configu ration Management windo w on the EMS or OMMB, clic k Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell > Measurement Parameter, click the
ii.
button.
If Switch for CS Fallback Based Measurement is set to No[0], a blind CSFB procedure will be performed. If Switch for CS Fallback Based Measurement is set to Yes[1], a CSFB based on measurement procedure will be performed, see
iii.
.
For CSFB to UTRAN, Set CSFB Method of UTRAN to PS Handover[0] or Redirection[1] based on actual CSFB procedures to be test. For CSFB to GSM, Set CSFB Method of GSM to PS Handover[0], CCO[1] or Redirection[2] based on actual CS FB procedu res to be test , s ee
iv.
Click
to save the configuratio n.
42 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 5-12
2.
Configuration of CSFB Base d Measurem ent Switch and Method of CSFB
Configure target system of idle UE for CS Fallback paramete r: i.
In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell > Measurement Parameter , click the
ii.
button.
If CSFB procedure test base on UE in RRC-IDLE state, click behind the Target System of Idle Ue for CS Fallback parameter, then Target System of Idle Ue for CS Fallback tab opens, set GERAN Target System of Idle Ue for CS Fallback and UTRAN-FDD Target System of Idle Ue for CS Fallback to non-zero value. A higher value indicates a higher priority. If the priority is set to 0, the related system is not considered for CSFB. See
iii.
Click
ZTE Confidential Proprietary
.
to save the configuratio n.
© 2015 ZTE CORPORATION. All rights reserved. 43
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 5-13
3.
CSFB Targ et System Priority Configuration for UE in RRC_IDLE state
Configure target system of Connecte d UE for CS Fallback parameter: i.
In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio P arameter > LTE FD D > E- UTRA N F DD Cell > Measurement Parameter, click the
ii.
button.
If CSFB proced ure test base on UE in RRC-CONNECTED state, click behind the Target sy stem of Connected Ue for CS Fall back parameter, then Target System of Connected Ue for CS Fallback tab opens, set GERAN Target System of Connected Ue for CS Fallback and UTRAN-FDD Target System of Connected Ue for CS Fallback to non-zero value. A higher value indicates a higher priority. If the priority is set to 0, the related system is not considered for CSFB. See Figure 5-14.
iii.
Click
to save the configuratio n.
44 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 5-14
CSFB Targ et System Priority Configuration for UE in RRC_CON NECTED
state
2.
UTRA N Frequency CSFB Priority Configuration: In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell > Measurement Parameter . Click the
button to configure UTRAN Frequency CSFB Priority.
See Figure 5-15.
Figure 5-15
UTRAN Frequency CSFB Priority Configuratio n
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 45
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
3.
GERAN Frequency CSFB Priority Configuration: In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell > Measurement Parameter . Click the
button to configure GERAN Frequency CSFB Priority.
See Figure 5-16.
Figure 5-16
4.
GERAN Frequency CSFB Priority Configuration
Switch for CS Fallback base LAI and Multi-PLMN local strategy for CSFB Configuration: In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD > E-UTRAN FDD Cell > Measurement Parameter . Click the
button to modify the par ameters. See Figure 5-1 7.
46 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 5-17
5.
Switch for CS Fallback base LAI and Multi-PLMN loc al strategy for CSFB
local strategy for Multi-PLMN Configuration: In the Configuration Management window on the EMS or OMMB, click Modify Area > Radio Parameter > LTE FDD >E-UTRAN Service Configuration> local strategy for Multi-PLMN, s ee Figure 5-18 for configuring local strategy paramet ers of Multi-PLMN.
Figure 5-18
Local Strategy for Multi-P LMN Configuratio n
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 47
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
5.5.3.2
Other Parameters Configuration 1.
Please refer to chapter 5.1.3.2.
2.
Set UE to support CS domain and PS domain. Click View, the NV Browser window is displayed. Select 00850 Service Domain Preference. In Fields, select 0x2 CS PS, see Figure 5-19.
Figure 5-19
Setting UE to Suppo rt CS Domain and PS Domain
48 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Call Manager : Simulat e a call by using Call Manager. Parameter configurations in Call Manager: Click View, the Call Manager window is displayed, see Figure 5-20. If the call is Mobile Originated, click Start. If the call is Mobile Terminated, it is automatically established. The MO call is established from the UE in LTE to the UE in 3G or 2G communication system.
Figure 5-20
5.5.3.3
Call Manager Usage
Data Synchronization Please refer to chapter 5.1.3.3.
5.5.3.4
Function Deactivation No.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 49
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
5.6 5.6.1
Inter-RAT Load Balancing Function Parameters List
Table 5-9
Paramet ers List
SN 1 2
Parameter Name(English) Inter-RAT neighbor relation Load Management Switch of Load Balancing Algorithm
Figure Figure5-2 Figure 5-21
3
Inter-freq/RAT Camp Load Balancing S witch
Figure 5-21
4
Switch of Cell Load Log
Figure 5-21
5
Load Balancing RAT Priority
Figure 5-21
6
7
8
9
10
11
12
13
Threshold of intra-LTE neighbor cell in overload state in uplink Threshold of intra-LTE neighbor cell in overload state in downlink Threshold to Execute ZTE PRB Load Balancing in Uplink Threshold to Execute ZTE PRB Load Balancing in Downlink Threshold to Execute Inter-freq/RAT Camp Load Balancing Number of Frequency to Modify Cell reselection Priority Threshold of Inter-RAT Neighbor Cell in Overload State in Uplink Threshold of Inter-RAT Neighbor Cell in Overload State in Downlink
Figure 5-21
Figure 5-21
Figure 5-21
Figure 5-21
Figure 5-21
Figure 5-21
Figure 5-21
Figure 5-21
50 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
5.6.2
Parameters Configuration rule
Table 5-10 SN
1
Parameters Configuration rule
Paramete
Description
rs Name
Value Range
The parameter indicates
0 neighboring;
Inter-RAT
the location relation
1 same
neighbor
between server cell and
coverage;
relation
UTRAN(GERAN)
2 Containing;
neighboring cell
3 Contained
Default Value
0: neighboring
Switch of load balancing Load Managem 2
ent Switch of Load Balancing Algorithm
algorithm in load management, which determine whether load balancing al gorithm is valid or not. Scheme of
0:Close, 1:Open
Close
blind handover or scheme based on measurement of event can be selected.
Inter-freq/ RAT 3
Camp Load Balancing Switch
4
Switch of inter-freq/RAT Camp Load Balancing, which can determine whether the inter-freq/RAT Camp Load Balancing function is performed or
1: General Strategy,
Close
2: WCP Strategy
not.
Switch of
This switch determine
Cell Load
whether output cell load
Log
log.
ZTE Confidential Proprietary
0: Close
0: Close 1: Open
Close
© 2015 ZTE CORPORATION. All rights reserved. 51
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
This array indicates the priority of candidate RATs for load balancing. eNB selects the target RAT based on this information. From the first array member, each denotes the corresponding priority of EUTRA-FDD, EUTRA-TDD, GERAN, UTRA-FDD, UTRA-TDD, CDMA2000-HRPD and
5
Load
CDMA2000-1xRTT
Balancing
respectively. The value
RAT
range of each integer
Priority
array member is from 0 to
0-255
FDD:[254,255,0, 0,0,0,0]
255. A higher value indicates a higher priority. The default value 0 means there is no applicable neighbor cell for the corresponding RAT. Each non-isolated serving cell shall be configured with load balancing RAT priority for the corresponding neighboring cell(s). This parameter is used to Threshold of intra-LTE 6
neighbor cell in overload state in uplink
judge load leveling of Intra-LTE neighbor cells in uplink. When the PRB usage of an Intra-LTE neighbor cell in uplink
1-100
exceeds this parameter, this cell cannot be used as candidate target cell in uplink for Intra-LTE load balancing.
52 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
60
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
This parameter is used to Threshold of intra-LTE 7
neighbor cell in overload state in downlink
judge load leveling of Intra-LTE neighbor cells in downlink. When the PRB usage of an Intra-LTE neighbor cell in downlink
1-100
60
0-100
65
0-100
65
exceeds this parameter, this cell can't be used as candidate target cell in downlink for Intra-LTE load balancing. This parameter is used to execute ZTE load
8
Threshold
balancing function in
to Execute
uplink. When the average
ZTE PRB
PRB usage of LTE serving
Load
cell in uplink exceeds this
Balancing
parameter during the
in Uplink
counter window, the cell executes ZTE load balancing in uplink. This parameter is used to execute ZTE load
Threshold to Execute
9
ZTE PRB Load Balancing in Downlink
balancing function in downlink. When the average PRB usage of LTE serving cell in downlink exceeds this parameter during the counter window, the cell executes ZTE load balancing in downlink.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 53
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
This parameter is used to Threshold to Execute Inter-freq/ 10
RAT Camp Load Balancing
start the camp load balancing function. When either the UL total PRB usage of the cell or the DL total PRB usage of the cell
0-100
70
1-128
1
0-100
60
0-100
60
is greater than this parameter, the cell starts the camp load balancing function.
CLB 中专 用小区重
11
选优先级 的频点个 数
The Number of frequency, which is selected to modify the UE-specific cell reselection priority for inter-freq Camp Load Balancing. This parameter is used to
12
Threshold
judge load leveling of RAT
of
neighbor cells in uplink.
Inter-RAT
When the load value of a
Neighbor
RAT neighbor cell in
Cell in
uplink exceeds this
Overload
parameter, this cell can‟t
State in
be used as candidate
Uplink
target cell in uplink for RAT load balancing. This parameter is used to
13
Threshold
judge load leveling of RAT
of
neighbor cells in Downlink.
Inter-RAT
When the load value of a
Neighbor
RAT neighbor cell in
Cell in
Downlink exceeds this
Overload
parameter, this cell can‟t
State in
be used as candidate
Downlink
target cell in Downlink for RAT load balancing.
54 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
5.6.3
Parameters Configuration Procedure
5.6.3.1
Function Activation 1.
Inter-RAT neighbor relation parameter configuration: See Figure5-2, configure Inter-RAT neighbor relation .
2.
Load balancing function parameters configuration: In the Configuration Management windo w on the EMS or OMMB, click Modify Area-> Radio Parameter -> LTE FDD -> E-UTRAN Service Configuration -> Load Management,configuration the Related parameters of
Load Balancing
Function, see figure 5 -21.
Figure 5-21
Load Balancing Function parameters Configuratio n
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 55
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
5.6.3.2
Other Parameters Configuration Please refer to chapter 5.1.3.2.
5.6.3.3
Data Synchronization Please refer to chapter 5.1.3.3.
5.6.3.4
Function Deactivation In Figure5-21, select Modify Area-> Radio Parameter -> LTE FDD -> E-UTRAN Service Configuration -> Load Management] ,configuration Load Management Switch of Load Balancing Algorithm and Inter-freq/ RAT Camp Load Balancing Switch to close.
56 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
5.7 5.7.1
Inter-RAT Cell Reselection Function Parameters List
Table 5-11
Parameters List
SN
Parameter Name
Figure
1
User – Inactivity Enabled
Figure5-22
2
User- Inacti vity Timer on Control Panel
Figure 5-23
3
Whether configure Snonintrasearch parameters
Figure 5-24
4
Decision threshold of same/lower priority RSRP measurement
Figure 5-24
5
Lower threshold of serving ca rrier
Figure 5-24
6
Reselection priority of intra-frequency cell
Figure 5-24
7
Cell reselection prio rity base SPID
Figure 5-24
8
Decision threshold of same/lower priority RSRQ measurement
Figure 5-24
RSRQ threshold (in dB) of the serving cell when 9
reselecting towards a lower priority RAT/
Figure 5-24
frequency (Release 9)
Switch for „Threshold (in dB) of the serving cell 10
when reselecting towards a lower priority RAT/
Figure 5-24
frequency RSRQ (Release 9)‟ 11
UTRAN FDD frequency number
Figure 5-25
12
UTRAN FDD ARFCN
Figure 5-25
13
UTRAN cell reselection priority
Figure 5-25
14
15
16
17
Minimum required UTRAN FDD cell RX level when c ell selection RSRP threshold for Reselecting to High Priority UTRAN FDD Cell Minimum quantity required UTRAN FDD cell selection RSRQ threshold for reselecting higher priority serving UTRAN cell
ZTE Confidential Proprietary
Figure 5-25
Figure 5-25
Figure 5-25
Figure 5-25
© 2015 ZTE CORPORATION. All rights reserved. 57
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
18
19
RSRQ threshold for reselecting higher priority serving UTRAN cell RSRQ threshold for reselecting lower priority serving UTRAN cell
Figure 5-25
Figure 5-25
20
UTRAN FDD frequency number
Figure 5-26
21
UTRAN FDD ARFCN
Figure 5-26
22
UTRAN FDD cell reselect ion priority
Figure 5-26
23
24
25
Minimum required UTRAN FDD Cell Rx level when cell selection RSRP threshold for Reselecting to High Priority UTRAN FDD Cell RPRP threshold for reselecting to low priority UTRAN FDD cell
Figure 5-26
Figure 5-26
Figure 5-26
26
Number of GERAN ca rriers
Figure 5-27
27
Band Indicat or
Figure 5-27
28
Representation of the Remaining ARFCN
Figure 5-27
29
The Number of Explicit ARFCN
Figure 5-27
30
Equally Spaced ARFCN Value
Figure 5-27
31
32
33
34
the Number of the Remaining Equally Spaced ARFCN Values Minimum Required GERAN Cell RX Level When Cell Selection Threshold for Reselecting to High Priority GERAN Cell Threshold for Reselecting to Low Priority GERAN Cell
Figure 5-27
Figure 5-27
Figure 5-27
Figure 5-27
35
Geran Cell Reselection Priority
Figure 5-27
36
the First ARFCN Value
Figure 5-27
37
ARFCN detailed list
Figure 5-27
58 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
5.7.2
Parameters Configuration rule
Table 5-12 SN
Parameters Configuration rule
MO
Short
Name
Name
Globa 1
Description The parameter is used to
l
ucSwchUs
determine whether or not
Switc
erInac
to enable UE inactivity
h
function.
Value
Default
Range
Value
0: Close,
Open
1:Open.
The parameter is a switch indicating whether S_nonintrasearch is configured or not If the value is False, UE always performs measurements of inter-RAT frequencies or inter-frequencies of
E-UT RAN 2
Cell Resel ection
equal or lower priority If ucSNintra
the value is True,
enum(N
SrchPre
S_nonintrasearch is
o,Yes)
Yes
configured to UE, and UE judges whether to perform the measurements of inter-RAT frequencies or inter-frequencies of equal or lower priority For detail description please refers to TS 36304.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 59
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
The parameter indicates the measurement triggering threshold for cell reselection (S_nonintrasearch) used by UE to judge whether inter-frequency/inter-RA T should be performed If the quality of serving cell exceeds S_nonintrasearch, UE E-UT RAN 3
Cell Resel ection
may choose not to ucSNintra Srch
perform me asurements of inter-RAT frequencies
[0,62]
or inter-frequencies of equal or lower priority if the quality of serving cell is not larger than S_nonintrasearch, UE shall perform measurements of inter-RAT frequencies or inter-frequencies cells of equal or lower priority For detail description please refers to TS 36304
60 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
50
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
The parameter indicates the threshold for cell reselection to a cell on a lower priority RAT or frequency There have 3 elements fulfilled for cell reselection criteria : (1) No cell of a higher priority RAT or frequency fulfills the criteria above (2) SServingCell < ThresholdServing_Low
E-UT RAN 4
Cell Resel
and the ucThreshS
SnonServingCell,x of a
vrLow
cell of a lower priority
[0,62]
6
0-7
7
frequency RAT or
ection
frequency is greater than ThresholdX_Low (including inter-frequency and inter-RAT) during a time interval TreselectionRAT (3) more than 1 second has elapsed since the UE camped on the current serving cell For detail description please refers to TS 36304
E-UT RAN 5
Cell Resel ection
ZTE Confidential Proprietary
The parameter indicates ucIntraRes elPrio
intra-frequency cell reselection priority The less its value is, the lower its priority class is
© 2015 ZTE CORPORATION. All rights reserved. 61
ZTE LTE LTE FDD Inter-RAT Inter-RAT Interoperab ility Feature Guid e
This parameter indicates the reselection priority of RAT. The reselection priority of RAT is defined by SPID value sent to
E-UT 6
RAN
aucCellRe
eNB from EPC with S1
Cell
selPrioBas
interface. EUTRAN,
Resel
eSpid[3]
GERAN, UTRAN is
ection
0-7
divided into High, Medium, Low class, and its priority is determined by SPID value respectively.
62 ZTE Confidential Confid ential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. reserved.
7,4,1
ZTE LTE LTE TDD Inter-RAT Inter-RAT interop erability Feature Guid e
This parameter indicates the measurement triggering threshold for cell reselection (SnonintrasearchQ) used by UE to judge whether inter-frequency/inter-RA T should be performed. If the quality of serving cell exceeds Snonintrasearch, UE may choose not to perform perform me asurements
E-UT RAN 7
Cell Resel ection
ucSNintra SrchQ
of inter-RAT frequencies or inter-frequencies of
1-31
1
equal or lower priority. if the quality of serving cell is not larger than SnonintrasearchQ, UE shall perform measurements of inter-RAT frequencies or inter-frequencies cells of equal or lower priority. For detail description please refers to TS 36.304. Range of the parameter is actual value which equals to the value value in 3 6.331. 6.331.
ZTE Confidential Confid ential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. reserved. 63
ZTE LTE LTE FDD Inter-RAT Inter-RAT Interoperab ility Feature Guid e
This parameter indicates the threshold for cell reselection to a cell on a lower priority RAT or frequency. There have 3 elements fulfilled for cell reselection criteria: (1) No cell of a higher priority RAT or frequency fulfills the criteria above; (2) SServingCell < ucThreshSrvLowQ and the SnonServingCell,x of a cell of a lower priority
E-UT RAN 8
Cell Resel
ucThreshS rvLowQ
ection
frequency RAT or frequency is greater than
[1,31]
3
ucThreshSvrLow (including inter-frequency and inter-RAT) during a time interval TreselectionRAT; (3) more than 1 second has elapsed since the UE camped on the current serving cell. For detail description please refers to TS 36.304. Range of the parameter is actual value which equals to the value in 36.331.
If select „Open‟, then the parameter “Threshold “Threshold (in dB) of the serving cell
E-UT 9
RAN
ucThreshS
when reselecting
enum(Cl
Cell
rvLowQSw
towards a lower priority
ose,Ope
Resel
itch
RAT/ frequency RSRQ
n)
ection
(Release 9)” (threshServingLowQ-r9 IE) shall prese nt in SIB3. SIB3.
64 ZTE Confidential Confid ential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. reserved.
Open
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
UTRA N 10
FDD
ucUtranFr
Cell
eqNum
Resel
This parameter is used to present the UTRAN
[0..32]
0
frequency number.
ection UTRA N 11
FDD
awUtranC
Cell
arriFreq
UTRAN FDD ARFCN
[0..1638 3]
0
Resel ection UTRA N 12
FDD
aucUtranR
UTRAN FDD cell
Cell
eselPrio
reselection priority
[0,7]
5
Resel ection The parameter indicates the minimum required received power level of UTRAN FDD cell which satisfies the condition of
UTRA
being reselected by UE It
N 13
FDD
aucUtranQ
Cell
rxLevMin
Resel ection
is a key parameter of SnonServingCell,x which is necessary to calculate for reselection to a
[-119,-2 5] step 2 unit
-115
dBm
UTRAN FDD neighbor cell Range of the parameter is actual value which equals to double of value in 36331 plus 1.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 65
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
The parameter indicates the threshold for cell reselection to a higher priority UTRAN FDD cell There have 2 elements fulfilled for cell
UTRA
reselection criteria:(1)
N 14
FDD
aucUtranT
Cell
hrdXHigh
Resel
the SnonservingCell,x of a higher priority UTRAN
[0,62]
8
[0,62]
10
FDD cell is greater than utran_ThreshX_High
ection
_FDD during a t ime interval Treselection (2) more than 1 second has elapsed since the UE camped on the current serving cell. The parameter indicates the threshold for cell reselection to a lower priority frequency UTRAN FDD cell There have 3 elements fulfilled for cell reselection criteria :(1)
No cell of a
higher priority frequency
15
UTRA
or inter-RAT fulfills the
N
criteria above (2)
FDD
aucUtranT
SServingCell <
Cell
hrdXLow
ThresholdServing_Low
Resel
and the
ection
SnonServingCell,x of a lower priority UTRAN FDD cell is greater than utran_ThreshX_Low _FDD
during a time
interval Treselection (3) more than 1 second has elapsed since the UE camped on the current serving c ell
66 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
The the
indicates
minimum
quality
requirement
UTRA
of
UTRAN
FDD cell which satisfies the
N 16
parameter
FDD
aucqQual
Cell
Min
condition
of
being
reselected by UE It is a ke y parameter
Resel
[-24,0]
-18
[0,31]
5
[0,31]
3
[0,16]
0
of
SnonServingCell,x which is
ection
necessary to calculate for reselection to a UTRAN FDD neighbor cell This specifies the Squal threshold (in dB) used by the UE when reselecting
UTRA N 17
FDD Cell Resel
aucUtranT hreshXHig hQFdd
ection
towards a higher priority RAT/ frequency than the current serving frequency Each
frequency
E-UTRAN
and
of
UTRAN
FDD might have a specific threshold This specifies the Srxlev threshold (in dB) used by the UE when reselecting towards a lower priority
UTRA N 18
FDD Cell Resel
RAT/ frequency than the
aucUtranT hreshXLo wQFdd
ection
current serving frequency Each
frequency
E-UTRAN each
and
group
frequencies,
of
UTRAN,
of
GERAN
each
band
class of CDMA2000 HRPD and
CDMA2000
might
have
a
1xRTT specific
threshold
UTRA N 19
TDD Cell Resel
ucUtranTD DFreqNu m
UTRAN number
TDD
frequency
ection
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 67
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
UTRA N 20
TDD Cell Resel
awUtranT DDCarriFr
UTRAN TDD ARFCN
eq
[0,1638 3]
0
ection UTRA N 21
TDD Cell Resel
The parameter indicates aucUtranT
UTRAN TDD cell
DDReselP
reselection priority The
rio
less its value is, the
[0,7]
7
lower its priority class is
ection
The parameter indicates the minimum required received power level of UTRA N 22
TDD Cell Resel ection
UTRAN TDD cell which aucUtranT DDQrxLev Min
satisfies the condition of being reselected by UE It
[-119,-2
is a key parameter of
5]
SnonServingCell,x which is necessary to calculate for reselection to a UTRAN TDD neighbor cell
68 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
-115
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
The parameter indicates the threshold for cell reselection to a higher priority UTRAN TDD cell There have 2 elements fulfilled for cell
UTRA N 23
TDD Cell Resel
reselection criteria:(1) aucUtranT
the SnonservingCell,x of
DDThrdX
a higher priority UTRAN
High
TDD cell is greater than
[0,62]
8
[0,62]
10
utran_ThreshX_High
ection
_TDD during a t ime interval Treselection (2) more than 1 second has elapsed since the UE camped on the current serving cell The parameter indicates the threshold for cell reselection to a lower priority frequency UTRAN TDD cell There have 3 elements fulfilled for cell reselection criteria :(1)
No cell of a
higher priority frequency UTRA N 24
TDD Cell Resel ection
or inter-RAT fulfills the aucUtranT DDThrdXL ow
criteria above (2) SServingCell < ThresholdServing_Low and the SnonServingCell,x of a lower priority UTRAN TDD cell is greater than utran_ThreshX_Low _TDD
during a time
interval Treselection (3) more than 1 second has elapsed since the UE camped on the current serving c ell
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 69
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
The parameters indicate the numbers of GERAN Frequency Group. The
GER AN 25
Cell Resel
GERAN carrier ucGeranFr frequencies are eqNum
organized in groups and
0-16
0
the cell reselection
ection
parameters are provided per group of GERAN carrier frequencies.
GER AN 26
Cell Resel
aucBandInd icator
The parameter indicates the frequency band for downlink carrier
AN 27
Cell Resel
The aucFollowA RFCNInd
ection
parameter
indicates
the representation of the remaining ARFCN, include explicitly
0,
DCS180
PCS190
0[0]
0
ection GER
DCS180
and
equally
The
parameter
indicates
the
Number
spaced
enum(ex plicitly, equally
explicitly
spaced)
GER ANCe 28
ll Resel
aucExpliAR FCNNum
of
Explicit
0-31
0
1-8
1
0-31
0
ARFCN
ection GER AN 29
Cell Resel
aucArfcnSp acing
The parameter indicates the equally spaced ARFCN value
ection GER AN 30
Cell Resel ection
The parameter indicates aucFollowA
the number of the
RFCNNum
remaining equally spaced ARFC N values
70 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
The parameter indicates the minimum required received power level of
31
GER
GERAN cell which
AN
satisfies the condition of
Cell Resel
aucGeranQ rxLevMin
ection
being reselected by UE It is a key parameter of SnonServingCell,x which
[-115,-2 5] step 2 unit
-109
dBm
is necessary to calculate for reselection to a GERAN neighbor cell. The parameter indicates the threshold for cell reselection to a higher priority GERAN cell There have 2 elements fulfilled for cell GER AN 32
Cell Resel ection
reselection criteria: (1) aucGeranT hrdXHigh
the SnonservingCell,x of
[0,62]
a higher priority GERAN
step 2
cell is greater than
unit dB
10
geran_ThreshX_High during a time interval Treselection (2) more than 1 second has elapsed since the UE camped on the current serving cell.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 71
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
The parameter indicates the threshold for cell reselection to a lower priority frequency GERAN cell There have 3 elements fulfilled for cell reselection criteria : (1)
No cell of a
higher priority frequency or inter-RAT fulfills the
GER AN 33
Cell Resel
criteria above (2) aucGeranT
SServingCell <
hrdXLow
ThresholdServing_Low and the
ection
[0,62] step 2
12
unit dB
SnonServingCell,x of a lower priority GERAN cell is greater than geran_ThreshX_Low during a time interval Treselection
(3) more
than 1 second has elapsed since the UE camped on the current serving cell. GER AN 34
Cell Resel
The parameter indicates aucGeranR eselPrio
ection
GERAN cell reselection priority The less its value
[0,7]
4
is, the lower its priority class is.
GER AN 35
Cell Resel
awStartAR FCN
The First ARFCN Value
[0..1023 ]
0
ection GER AN 36
Cell Resel
awExplicit
The parameter indicates
ARFCN
the explicit list of ARFCN
0-1023
ection
72 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
0
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
5.7.3
Parameters Configuration Procedure
5.7.3.1
Function Activation 1.
User-inacti vity Enabled S witch Configuration : Select Modify Area-> Radio Parameter -> LTE FDD -> E-UTRAN Service Configuration ->Global Switch , see Figure 5-22, c lick
button, config ur e
User-inactivity Enabled to open.
Figure 5-22
2.
User-inacti vity Switch Configuration
User- Inacti vity Timer on Control Panel Configuration: Select Modify Area-> Radio Parameter -> LTE FDD -> E-UTRAN Service Configuration ->Global Switch ,see Figure 5-23, click
button, and configure
User- Inactivity Timer on Control Panel.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 73
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 5-23
3.
User- Inacti vity Timer on Control Panel Con figuration
E-UTRAN Cell Reselection Param eters Configuration: Select Modify Area-> Radio Parameter -> LTE FDD -> Cell Reselection Configuration->E-UTRAN Cell Reselection , see Figure 5-24, clic k configure the r elated parameters.
74 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
button, an d
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 5-24
E-UTRA N Cell Reselection Parameters Configuration
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 75
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
4.
UTRA N FDD
Cell Reselection Configuration:
Select Modify Area-> Radio Parameter -> LTE FDD -> Cell Reselection Configuration->UTRAN FDD Cell Reselection , see Figure 5-25, click and configure the related parameters.
76 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
button,
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 5-25
UTRAN FDD
ZTE Confidential Proprietary
Cell Reselection Configuration
© 2015 ZTE CORPORATION. All rights reserved. 77
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
5.
UTRA N TDD
Cell Reselection Configuration:
Select Modify Area-> Radio Parameter -> LTE FDD -> Cell Reselection Configuration->UTRAN TDD Cell Reselection , see Figure 5-26, click and configure the related parameters.
Figure 5-26
UTRAN TDD
Cell Reselection Configuration
78 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
button,
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
6.
GERAN
Cell Reselection Configuration:
Select Modify Area-> Radio Parameter -> LTE FDD -> Cell Reselection Configura tion->GERAN Cell Reselection, see Figure 5-27, c lick
button, an d
configure the r elated parameters.
Figure 5-27
GERAN Cell Reselection Configuration
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 79
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
80 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE LTE TDD Inter-RAT Inter-RAT interop erability Feature Guid e
5.7.3.2
Other Parameters Configuration Please refer to chapter 5.1.3.2.
5.7.3.3
Data Synchronizat Synchronization ion Please refer to chapter 5.1.3.3. 5.1.3.3.
5.7.3.4
Function Deacti De activat vation ion No.
6
Feature Validation Validation
6.1
Inter-RAT Redirection
6.1.1
Topology shows the test environment network.
Figure 6-1
Inter-RAT Inter-RA T Redirection Redirect ion Test Env En vi ronment Network
ZTE Confidential Confid ential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. reserved. 81
ZTE LTE LTE FDD Inter-RAT Inter-RAT Interoperab ility Feature Guid e
Besides the system devices in the above figure,
shows other test
devices required for the test.
Table 6-1
Test Devices No.
Device Name
1
Remarks
UE
One UE that supports GSM, UMTS, and LTE
2
PC
Three PCs that are connected to the UE, EMS, and OMC
6.1.2
Test Specification Specification
Table 6-2
Inter-RAT Inter-RA T Redirection Redirect ion Test
Test item
Inter-RAT redirection feature validation
Purpose
Verify Verify that the inter-RA T redirect ion featu feature re is normal. The parameters of the cells and UE are configured in accordance
Prerequisites
with Section 5.2. The environment environment is normal, normal, an d cells are established. established. Step
1
Expected step result
Place the UE in an LTE cell, and
The UE accesses the LTE cell
attach the UE to the LTE cell.
successfully. The UE is redirected to the UTRAN/GREN cell successfully. The Redirection IE in the RRC Connection
2
Move the UE from LTE cell to
Release message carries the
UTRAN(or GERAN) cell.
UTRAN/GREN UTRAN/GREN cell frequency that is configured in the system to the UE. Verify that the RAU flow originated by the UE is succ essful. essful.
82 ZTE Confidential Confid ential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. reserved.
ZTE LTE LTE TDD Inter-RAT Inter-RAT interop erability Feature Guid e
Expected result
1.
The inter-RAT inter- RAT redirect ion feature is supported.
2.
The Redirection Redirect ion IE in the RRC Connection Connection Release mess message age carries the UTRAN/GREN cell frequency that is configured in the system to the UE. UE.
Criteria Test re sult
6.1.3
Passed
Test Result 1.
After the th e UE registers with with the LTE LTE cell, the RRC Connection Con nection Reco Reconfiguratio nfiguration n message carries the A2 event that reports redirection, see
Figure 6-2
2.
.
RRC Connection Con nection Recon Reconfiguration figuration M essage Carries Carries the A2 E vent vent
The red uction in the th e signal strength stre ngth of the th e LTE cell trigge rs the UE reporting the A 2 Measurement Measurement Report message based o n redirection, see
ZTE Confidential Confid ential Proprietary
.
© 2015 ZTE CORPORATION. All rights reserved. reserved. 83
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 6-3
3.
UE Reports the A2 Measurement Report
The eNodeB selects the target RAT (UMTS or GSM) and frequency in accordance with the redirection priority, and sends them to the UE through the RRC Connection Release message, see
Figure 6-4
and
.
Sending the UTRAN Frequency to the UE Through the RRC Connection
Release Message
84 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 6-5
Sending the GERAN Fre quency to the UE Through the RRC Connection
Release Message
4.
After receiving the RRC Connection Release message, the UE enters Idle status, searches for the target cell, and originates the RA U flow.
6.2
Inter-RAT PS HO
6.2.1
Topology For the test environment, re fer to Section 6.1.1.
6.2.2
Test Specification
Table 6-3
Inter-RAT PS HO Test
Test item
Inter-RAT PS HO feature validation
Purpose
Verify that the inter- RAT PS HO feature is normal.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 85
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
The parameters of the cells and UE are configured in accordance Prerequisites
with Section 5.3. The environment is normal, an d cells are established.
1
Step
Expected step result
Place the UE in an LTE cell, and
The UE accesses the LTE cell
attach the UE to the LTE cell.
successfully. The UE is handed over to the UTRAN
2
Move the UE from LTE cell to
(or GEREN) cell successfully. The
UTRAN (or GERAN) cell.
handover signaling is normal, and the RAU flow is normal.
Expected result
1. The inter- RAT PS HO feature is supported. 2. The UE is handed over to the UTRAN/GREN cell successfully. The handover signaling is normal.
Criteria Test re sult
6.2.3
Passed
Test Result The PS HO flow from LTE to UMTS is similar to that from LTE to GSM. The PS HO flow from LTE to UMTS is described as follows. 1.
UE access information
The UE accesses an LTE cell first. Check whether the UE supports UTRAN and GERAN by querying the UE capacity, see event in the RRC Connection Reconfiguration message, see .
86 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
. Check the A2
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 6-6
UE Capacity Query Message
Figure 6-7
A2 Event in the RRC Connection Reconfiguration Message
2.
PS HO execution
Move the UE to a UMTS cell. When the signal strength is lower than the A2 threshold, the UE reports the A2 Measurement Report message, see .
Figure 6-8
UE Reports A2 Measurement
When the signal strength is lower than the A2 threshold, the eNodeB sends the RRC Connection Reconfiguration message to the UE, instructing it to measure the
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 87
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
UTRAN neighbor cell, including frequency, cell ID, and B2 threshold. The eNodeB configures the measurement gap parameters. Then UE informs the eNodeB that the reconfiguration is completed, and starts the inter-RAT measurement, see .
Figure 6-9
eNodeB Instructs the UE to Measure the Frequency , Cell ID, and B2
Threshold of the UTRAN Neighbor Cell
After the report threshold is reached, the UE reports the B2 event, including signal qualities of the serving cell and UTRAN neighbor cell, see
Figure 6-10
.
UE Reports the B2 E vent
The eNodeB requests the capacity informatio n of the UE, and the UE reports the capacity information, including capacities related to UTRAN, see .
88 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 6-11
eNodeB Requests Capacities and UE Reports Capacities
The core network sends the handover comm and to the eNodeB. The E-UTRA N sends the Mobility From E-UTRA Command message (that carries Handover or CellChangeOrder IE) to instruct the UE in RRC_Connected status to hand over (PS HO) from E-UTRAN to another RAT, see
Figure 6-12
.
E-UTRAN Sends the Mobility From E-U TRA Command message to the UE
After handing over to UMTS, the UE sends the hando verToUTRANComplete message to the RNC, indicating that the handover to UMTS is successful, see .
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 89
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 6-13
UE Sends the handoverToUTRANComplete Message to the RNC
The UE originates the RAU flow. After that, the PS HO flow from LTE to UMTS is ended, see the following figu re.
Figure 6-14
UE Originates the RAU Flow
90 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
6.3
CCO
6.3.1
Topology For the test environment, re fer to Section 6.1.1.
6.3.2
Test Specification
Table 6-4
CCO Featu re Test
Test item
CCO feature validation
Purpose
Verify that the CCO feature is normal. The parameters of the cells and UE are configured in accordance
Prerequisites
with Section 5.4. The environment is normal, an d cells are established.
1
2
Step
Expected step result
Place the UE in an LTE cell, and
The UE accesses the LTE cell
attach the UE to the LTE cell.
successfully.
Move the UE from LTE cell to
Verify that the RAU flow originated by
GERAN cell.
the UE is succ essful.
Expected
1. The system supports the CCO feature.
result
2. The CCO signaling of the UE is normal.
Criteria Test re sult
6.3.3
Passed
Test Result 1.
The CCO featur e can be triggered only when the UE supports the feature. Whether the UE supports the CCO feature can be checked by querying the UE capacities(Bit10=1 in featureGroupIndicators IE indicate that UE support UE support CCO), see
ZTE Confidential Proprietary
.
© 2015 ZTE CORPORATION. All rights reserved. 91
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 6-15
2.
Querying Whether the UE Supports the CCO Feature
Move the UE from LTE cell to GERAN cell. When the signal quality of UE is met A2 threshold for opening the inter-RAT measurement, the UE reports the measurement reporting, and then eNodeB s ends RRC Connection Recon figuration message with B2 event configuration, see
,
.
92 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
, and
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 6-16
eNodeB Sends A2 Event Configuration Through RRC Connection
Reconfiguration Message
Figure 6-17
UE Reports the A2 E vent Measurement repo rting A fter A2 Thresh old Is
Reached
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 93
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 6-18
eNodeB Delivers B2 E vent Configu ration Through the RRC Connection
Reconfiguration Mess age
3.
Continue mo ving the UE to GERAN cell to make the UE report the B2 event measurement reporting. After receiving the B2 event measurement reporting, the eNodeB sends the MobilityFromEutranCommand message to the UE, in which Purpose CellChangeOrder IE and target cell information are carried. The difference between "with NACC" and "without NACC" is whether the SI information of the target cell is carried in the message.
For "with NACC", see
.
94 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 6-19
eNodeB Sends MobilityFromEutra nCommand with Purpose
CellChangeOrder to the UE
For "without NACC", see
Figure 6-20
.
eNodeB Sends MobilityFromEutra nCommand without SI Information to the
UE
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 95
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
6.4
CSFB For more information, refer to the ZTE LTE FDD Voice Service CSFB Feature Guide .
6.5
Inter-RAT Load Balance
6.5.1
Topology For the test environment, refer to Section 6.1.1.
6.5.2
Test Specification
Table 6-5
Inter-RAT Load Balance Test
Test item
Inter-RAT load balancing feature validation
Purpose
Verify that the inter-RAT load balancing feature is normal. Configure the test environment in accordance with Section 5.6,
Prerequisites
and prepare two UEs. The environment is normal, an d cells are established.
1
Step
Expected step result
Attach UE1 and UE2 to the L TE
UE1 and UE2 attach to LTE cell
cell.
successfully.
Establish a dedicated E-RAB with QCI =3 and ARP=4 from XGW for 2
the UE1, and Establish a
The dedicated bearers are established
dedicated E-RAB with QCI =7
successfully.
and ARP=6 from XGW for the
The FTP service is normal.
UE2. Start the uplink/downlink FTP s ervice.
96 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Wait for the UE2 to be handed over from LTE to UMTS when the DL/UL PRB utilization of the LTE 3
cell is higher than the specified load balancing threshold, and the unbalance degree of the UMTS cell is higher than 5%. Expected result
1. The UE at a lower dedicated bearer level is first handed over to the target cell. 2. The inter- RAT load balancing feature is normal.
Criteria Test re sult
6.5.3
Passed
Test Result 1.
Check the RIM messa ges sent and received by the eNodeB, see and
Figure 6-21
.
RIM Message Sent by the eNodeB
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 97
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 6-22
2.
RIM Message Received by the eNodeB
Start the downlink FTP service from the PDN server to the UE1 and UE2 respectively. When the load balancing period is started, and the load balancing threshold is exceeded, the UE2 is selected as a candidate UE for load balancing. The eNodeB sends RRC Connection Reconfiguration message including B1 measurement configu ration, see
.
98 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 6-23
eNodeB sends RRC Connection Recon figuration messag e including B1
measurement c onfigu ration
3.
When the conditions for the load balancing measurement event are met, the UE2 reports the measurement reporting, see
ZTE Confidential Proprietary
.
© 2015 ZTE CORPORATION. All rights reserved. 99
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 6-24
4.
UE2 Reports the Measurement Reporting
The UE2 originates a handover to the UMTS cell, see
Figure 6-25
UE2 Originates a Hando ver to the UMTS Cell
100 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
6.6
Inter-RAT Cell Reselection
6.6.1
Topology For the test environment, refer to Section 6.1.1.
6.6.2
Test Specification
Table 6-6
Inter-RAT Cell Reselection Test
Test item
Inter-RAT cell reselection feature validation
Purpose
Verify that the inter-RAT cell reselection feature is normal.
Prerequisites
The cell parameters are configured in accordance with Section 5.7. The environment is normal, and cells are established. Step
1
Expected result
Place the UE in an LTE cell, and
The UE attaches to the LTE cell
attach the UE to the LTE cell.
successfully.
The UE does not establish the 2
PPPOE connection but waits for
The RRC connection of the UE is
the user-inactivity timer to trigger it
released.
entering Idle status.
3
Move the UE form LTE cell to UTRAN (or GERAN) cell.
Expected result Test re sult
6.6.3
The UE reselects to the UTRAN (or GERAN) cell successfully. The RAU flow is successful.
1. The inter-RAT cell reselection feature is s upported. 2. The UE can reselect the UMTS/GSM cell. Passed
Test Result 1.
Make the UE enter idle status through the Switch for User Inact ivity switch after it registers with the LTE cell.
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 101
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
2.
Read the system broadcast messages (SIB3, SIB6, and SIB7) to view the reselected target cell carrier frequency, priority, and threshold, see and
Figure 6-26
.
SIB7 Message
102 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
Figure 6-27
3.
SIB6 Message
Change the signal strength of the s erving and target cells in accordance with the target frequency, priority, and threshold in the broadcast messages to trigger the reselection from LTE to UMTS/GSM.
4.
The UE reselects and resides in the UMTS/GSM cell, and originates the RAU flow, see
ZTE Confidential Proprietary
.
© 2015 ZTE CORPORATION. All rights reserved. 103
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
Figure 6-28
7
UE Reselects the UMTS/GSM Cell and Origin ates the RAU Flow
Related Counters, KPI and Alarm
7.1
Inter-RAT Redirection Function Related Counters, KPI and Alarm
7.1.1
Inter-RAT Redirection Function Related Counters Table 7-1
Inter-RAT Redirection Function Related Counters
SN
Counter No.
1
C373576600
2
C373576601
3
C373576602
4
C373576603
Description Number of Redirection Requests from LTE to GSM(CSFB) Number of Redirection Requests from LTE to GSM(Due to A2 event) Number of Redirection Requests from LTE to GSM(Due to Shut Down or Reset Cell) Number of Redirection Requests from LTE to GSM(Due to B2 event)
104 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
SN
7.1.2
Counter No.
5
C373576607
6
C373576608
7
C373576609
8
C373576610
Description Number of Redirection Requests from LTE to UTRAN(CSFB) Number of Redirection Requests from LTE to UTRAN(Due to A2 event) Number of Redirection Requests from LTE to UTRAN(Due to Shut Down or Reset Cell) Number of Redirection Requests from LTE to UTRAN(Due to B2 event)
Inter-RAT Redirection Function Related KPI No
7.1.3
Inter-RAT Redirection Function Related Alarm No
7.2
Inter-RAT PS HO Function Related Counters, KPI and Alarm
7.2.1
Inter-RAT PS HO Function Related Counters
Table 7-2
Inter-RAT PS HO Function Related Counters
SN
Counter No.
Description Number of Successful Outgoing
1
C373312708
inter-RAT(LTE->UTRAN) Handover Preparation Number of Outgoing
2
C373312709
inter-RAT(LTE->UTRAN) Handover Preparation Failure due to HO Command Timeout
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 105
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
SN
Counter No.
Description Number of Outgoing
3
C373312710
inter-RAT(LTE->UTRAN) Handover Preparation Failure due to Dst Preparation Failure Number of Outgoing
4
C373312711
inter-RAT(LTE->UTRAN) Handover Preparation Failure due to Other Reason Number of Successful Outgoing
5
C373312712
inter-RAT(LTE->UTRAN) Handover Execution Number of Outgoing
6
C373312713
inter-RAT(LTE->UTRAN) Handover Execution Failure due t o Re-establishment t o Source e NodeB Number of Outgoing
7
C373312714
inter-RAT(LTE->UTRAN) Handover Execution Failure due to UE Context Release Timeout Number of Outgoing
8
C373312715
inter-RAT(LTE->UTRAN) Handover Execution Failure due to Other Cause Number of Outgoing
9
C373312716
inter-RAT(LTE->UTRAN) Handover Preparation Failure due to User Inacti vity Number of Successful Outgoing
10
C373333308
inter-RAT(LTE->GSM) Handover Preparation Number of Outgoing inter-RAT(LTE->GSM)
11
C373333309
Handover Preparation Failure due to HO Command Timeo ut Number of Outgoing inter-RAT(LTE->GSM)
12
C373333310
Handover Preparation Failure due to Destination Preparation Failure Number of Outgoing inter-RAT(LTE->GSM)
13
C373333311
Handover Preparation Failure due to other Reason
14
C373333312
Number of Successful Outgoing
106 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
SN
Counter No.
Description inter-RAT(LTE-> GSM) Handover Execution Number of Outgoing
15
C373333313
inter-RAT(LTE-> GSM)Handover Execution Failure due to Re-establishment to Source eNodeB Number of Outgoing inter-RAT(LTE->GSM)
16
C373333314
Handover Execution Failure due to UE Context Release Timeout Number of Outgoing inter-RAT(LTE->GSM)
17
C373333315
Handover Execution Failure due to Other Cause Number of Outgoing inter-RAT(LTE->GSM)
18
C373333316
Handover Preparation Failure due to User Inactivity Number of Successful Outgoing
19
C373661808
inter-RAT(LTE->UTRAN) Handover Preparation Number of Outgoing
20
C373661809
inter-RAT(LTE->UTRAN) Handover Preparation Failure due to HO Command Timeout Number of Outgoing
21
C373661810
inter-RAT(LTE->UTRAN) Handover Preparation Failure due to Dst Preparation Failure Number of Outgoing
22
C373661811
inter-RAT(LTE->UTRAN) Handover Preparation Failure due to Other Reason Number of Successful Outgoing
23
C373661812
inter-RAT(LTE->UTRAN) Handover Execution Number of Outgoing
24
C373661813
inter-RAT(LTE->UTRAN)Handover Execution Failure due to Re -esta blishment to Source e NodeB
25
ZTE Confidential Proprietary
C373661814
Number of Outgoing inter-RAT(LTE->UTRAN) Handover
© 2015 ZTE CORPORATION. All rights reserved. 107
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
SN
Counter No.
Description Execution Failure due to UE Context Release Timeout Number of Outgoing
26
C373661815
inter-RAT(LTE->UTRAN) Handover Execution Failure due to Other Cause Number of Outgoing
27
C373661816
inter-RAT(LTE->UTRAN) Handover Preparation Failure due to User Inacti vity Number of Successful Outgoing
28
C373682408
inter-RAT(LTE->GSM) Handover Preparation Number of Outgoing inter-RAT(LTE->GSM)
29
C373682409
Handover Preparation Failure due to HO Command Timeo ut Number of Outgoing inter-RAT(LTE->GSM)
30
C373682410
Handover Preparation Failure due to Dst Preparation Failure Number of Outgoing inter-RAT(LTE->GSM)
31
C373682411
Handover Preparation Failure due to Other Reason
32
C373682412
Number of Successful Outgoing inter-RAT(LTE-> GSM) Handover Execution Number of Outgoing
33
C373682413
inter-RAT(LTE->GSM)Handover Execution Failure due to Re-establishment to Source eNodeB Number of Outgoing inter-RAT(LTE->GSM)
34
C373682414
Handover Execution Failure due to UE Context Release Timeout Number of Outgoing inter-RAT(LTE->GSM)
35
C373682415
Handover Execution Failure due to Other Cause Number of Outgoing inter-RAT(LTE->GSM)
36
C373682416
Handover Preparation Failure due to User Inactivity
108 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
7.2.2
Inter-RAT PS HO Function Related KPI
Table 7-3
Inter-RAT PS HO Function Related KPI
SN
7.2.3
KPI No.
Description
1
310603
LTE-to-UMTS Ho Success Rate(Cell)
2
310605
LTE-to-GSM Ho Success Rate(Cell)
3
310609
4
310611
LTE-to-UMTS Ho Success Rate(EUtranRelation) LTE-to-GSM Ho Succ ess Rate(EUtranRelation)
Inter-RAT PS HO Function Related Alarm No
7.3 7.3.1
CCO Function Related Counters, KPI and Alarm CCO Function Related Counters Table 7-4
CCO Funct ion Related Counters
SN
Counter No.
1
C373712900
2
C373712901
Description Number of CCO Request From LTE to GSM(CSFB) Number of CCO Request From LTE to GSM(Due to B2 event) Number of CCO Request From LTE to
3
C373712905
GSM(Due to Handover Strategy based on Traffic )
7.3.2
CCO Function Related KPI No
ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved. 109
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
7.3.3
CCO Function Related Alarm No
7.4 7.4.1
CSFB Function Related Counters, KPI and Alarm CSFB Function Related Counters
Table 7-5
CSFB Funct ion Related Counters
SN
Counter No.
1
C373220644
2
C373220645
3
C373220646
4
C373220647
5
C373220648
6
C373220649
7
C373220650
8
C373220651
9
C373220652
10
C373220653
11
C373220654
12
C373220655
Description Number of Attempted Mt-Access Initial Cont ext Setup with CSFB Number of Successful Mt-Access Initial Cont ext Setup with CSFB Number of Mt-Access UE Context Release with CSFB Number of Attempted Mo-Signaling or Mo-Data Initial Context Setup with CSFB Number of Successful Mo-Signaling or Mo-Data Initial Context Setup with CSFB Number of Mo-Signaling or Mo-Data UE Cont ext Release with CSFB Number of Attempted Context Modification with CSFB Number of Successful Context Modification with CSFB Number of UE Context Release after Successful Context Modification with CSFB Number of Attempted Other Initial Context Setup with CSFB Number of Successful Other Initial Context Setup with CSFB Number of Other UE Context Release with CSFB
110 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
ZTE LTE TDD Inter-RAT interoperability Feature Guid e
SN
7.4.2
Counter No.
13
C373485133
14
C373485 141
Description Number of Outgoing Handover Preparation Attempts (CSFB) Number of Outgoing HO Success(CSFB)
CSFB Function Related KPI No
7.4.3
CSFB Function Related Alarm No
7.5
Inter-RAT Load Balancing Function Related Counters, KPI and Alarm
7.5.1
Inter-RAT Load Balancing Function Related Counters
Table 7-6
Inter-RAT Load Balancing Function Relate d Counters
SN
Counter No.
Description Number of Successful Outgoing
1
C373485159
inter-RAT(LTE->UTRAN) Handover Preparation based on Load Balance Number of Outgoing
2
C373485160
inter-RAT(LTE->UTRAN) Handover Preparation Failure based on Load Balance Number of Successful Outgoing
3
C373485161
inter-RAT(LTE->UTRAN) Handover Execution based on Loa d Balance Number of Outgoing
4
C373485162
inter-RAT(LTE->UTRAN) Handover Execution Failure based on Load Balance
5
ZTE Confidential Proprietary
C373485163
Number of Successful Outgoing inter-RAT(LTE->GERAN) Handover
© 2015 ZTE CORPORATION. All rights reserved. 111
ZTE LTE FDD Inter-RAT Interoperab ility Feature Guide
SN
Counter No.
Description Preparation based on Load Balance Number of Outgoing
6
C373485164
inter-RAT(LTE->GERAN) Handover Preparation Failure based on Load Balance Number of Successful Outgoing
7
C373485165
inter-RAT(LTE->GERAN) Handover Execution based on Loa d Balance Number of Outgoing
8
C373485166
inter-RAT(LTE->GERAN) Handover Execution Failure based on Load Balance
7.5.2
Inter-RAT Load Balancing Function Related KPI No
7.5.3
Inter-RAT Load Balancing Function Related Alarm No
7.6
Inter-RAT Cell Reselection Function Related Counters, KPI and Alarm
7.6.1
Inter-RAT Cell Reselection Function Related Counters No
7.6.2
Inter-RAT Cell Reselection Function Related KPI No
7.6.3
Inter-RAT Cell Reselection Function Related Alarm No
112 ZTE Confidential Proprietary
© 2015 ZTE CORPORATION. All rights reserved.
View more...
Comments
