Nokia - 3G Network Layering 900 & 2100 Sharing Session - 15June2015
May 3, 2017 | Author: Aruna Fermadi | Category: N/A
Short Description
3G Layering U900 & U2100...
Description
NOKIA 3G Network Layering 900 & 2100 Band
SHARING SESSION 15 June 2015
1
15/06/2015
© Nokia 2014 - File Name - Version - Creator - DocID
CONTENT 1. BACKGROUND
2. IDLE & CONNECTED MODE CELL RESELECTION STRATEGY 3. ADJI PLANNING RULE 4. OOREDOO MYANMAR MBLB LAYERING SCENARIO • • • • • •
MBLB Triggering Criteria MBLB Decision Criteria Preferred Layer HSPA LoadWeight and Load Level HSPA Load State MBLB Inactivity Triggered IFHO
5. MBLB LAYERING RESULT
• MBLB RAB Setup • HSPA Load Balancing
2
15/06/2015
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
1. BACKGROUND • Ooredoo having 3 (three) Frequencies used for 3G network : 2987 (U900 F1), 10712 (U2100 F2), 10737 (U2100 F3). • U900 is the main coverage layer, i.e. more idle mode UEs are expected and less PS traffic is desired => lower Cell Weight. • U2100 is become capacity layer which mainly handle higher Traffic => higher Cell Weight. • DC-HSDPA is enabled on U2100 layer only which will be preferred by DC capable UE • MIMO is Enabled on U900 Layer only which will be preferred by MIMO Capable UE. U2100
U2100
U2100
U2100 Periodic measurements and IF-HO if target U2100 signal good enough
U900 3
15/06/2015
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
U900
2. IDLE & CONNECTED MODE CELL RESELECTION STRATEGY Ec/No
P CPICH of serving cell -8
-12
1
Sintrasearch 5 (10 dB)
2
Sintersearch 3 (6 dB)
3
-16
Ssearch_RAT 1 (2 dB) Qqualmin (-18 dB)
time Intra Frequency Neighbor Measurement starts : CPCIH EcNo < Qqualmin+Sintrasearch Inter Frequency Neighbor Measurement starts : CPCIH EcNo < Qqualmin+Sintersearch
4
15/06/2015
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
2. IDLE & CONNECTED MODE CELL RESELECTION STRATEGY Ec/No
P CPICH of serving cell
Cell Ranking occurred for each target cells following defined parameters:
P CPICH of Neighbor cell
AdjsQoffset1 : 0 dB (RSCP offset) AdjsQoffset2 : 0 dB (EcNo Offset) AdjiQoffset1 : 0 dB (RSCP offset) AdjiQoffset2 : 0 dB (EcNo Offset)
1 Selected Cell Rank : Ranking Value = Measured Neighbor – Offset
Qhyst2
time Treselection
Qhyst2 : 2 dB Qhyst2 FACH : 2 dB Qhyst2 PCH : 2 dB 5
15/06/2015
Treselection Treselection FACH Treselection PCH
:2s :2s :2s
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
• Negative (-) offset : Higher ranking • Positive (+) offset : Lower Ranking
2. IDLE & CONNECTED MODE CELL RESELECTION STRATEGY Object WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB WCEL_SIB HOPS HOPS HOPS HOPS HOPS HOPS HOPS HOPI HOPI HOPI HOPI HOPI HOPI 6
Parameter Name QqualMin QrxlevMin Qhyst1 Qhyst1FACH Qhyst1PCH Qhyst2 Qhyst2FACH Qhyst2PCH Sintrasearch SintrasearchConn Sintersearch SintersearchConn Ssearch_RAT Ssearch_RATConn Treselection TreselectionFACH TreselectionPCH AdjsPenaltyTime AdjsQoffset1 AdjsQoffset2 AdjsQqualMin AdjsQrxlevMin AdjsTempOffset1 AdjsTempOffset2 AdjiQoffset1 AdjiQoffset2 AdjiQqualMin AdjiQrxlevMin AdjiTempOffset1 AdjiTempOffset2
15/06/2015
Name Minimum required quality level in the cell Minimum required RX level in the cell Cell reselection hysteresis 1 Cell reselection hysteresis 1 for FACH Cell reselection hysteresis 1 for PCH Cell reselection hysteresis 2 Cell reselection hysteresis 2 for FACH Cell reselection hysteresis 2 for PCH S intrasearch S intrasearch Connected Mode S intersearch S intersearch Connected Mode S search_RAT S search_RAT Connected Mode Cell reselection triggering time Cell reselection triggering time for FACH Cell reselection triggering time for PCH Cell Re-selection Penalty Time Cell Re-selection Quality Offset 1 (CPICH RSCP) Cell Re-selection Quality Offset 2 (CPICH EcNo) Cell Re-selection Minimum Quality Cell Re-selection Minimum RX Level Cell Re-selection Temporary Offset 1 Cell Re-selection Temporary Offset 2 Cell Re-selection Quality Offset 1 (CPICH RSCP) Cell Re-selection Quality Offset 2 (CPICH EcNo) Cell Re-selection Minimum Quality Cell Re-selection Minimum RX Level Cell Re-selection Temporary Offset 1 Cell Re-selection Temporary Offset 2
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
Formula for Default Getting Internal Value Value (internal) dB Internal_value = gui_value -18 dBm internal_value = (gui_value - 1) / 2 -58 dB Internal_value = gui_value / 2 0 dB Internal_value = gui_value 0 dB Internal_value = gui_value 0 dB Internal_value = gui_value / 2 2 dB Internal_value = gui_value 2 dB Internal_value = gui_value 2 dB Internal_value = gui_value / 2 5 dB Internal_value = gui_value / 2 5 dB Internal_value = gui_value / 2 4 dB Internal_value = gui_value / 2 4 dB Internal_value = gui_value / 2 2 dB Internal_value = gui_value / 2 2 s Internal_value = gui_value 2 s Internal_value = gui_value * 5 10 s Internal_value = gui_value 2 s internal_value = gui_value / 10 0 dB Internal_value = gui_value 0 dB Internal_value = gui_value 0 dB Internal_value = gui_value -18 dBm internal_value = (gui_value - 1) / 2 -58 0 0 dB Internal_value = gui_value 0 dB Internal_value = gui_value 0 dB Internal_value = gui_value -18 dBm internal_value = (gui_value - 1) / 2 -58 0 0
Units
Default Value (GUI) -18 dB -115 dBm 0 dB 0 dB 0 dB 1 dB 2 dB 2 dB 10 dB 10 dB 8 dB 8 dB 4 dB 4 dB 2s 2s 2s 0s 0 dB 0 dB -18 dB -115 dBm 3 dB (0) 2 dB (0) 0 dB 0 dB -18 dB -115 dBm 3 dB (0) 2 dB (0)
Current Value -18 -56 1 2 2 1 2 2 5 5 6 (U900) & 3 (U2100) 6 (U900) & 3 (U2100) 0 0 2 10 2 0 0 0) -18 -58 0 0 +10 (U900) & -10 (U2100) +10 (U900) & -10 (U2100) -12 -51 0 0
2. IDLE & CONNECTED MODE CELL RESELECTION STRATEGY WCELL QqualMin
U2100
F2 & F3
Qrxlevmin Sintrasearch = Sintrasearchconn
Bias to U2100 F1
U2100
- 18 dB
- 18 dB
-115 dBm -115 dBm 10 dB 10 dB
Sintersearch = Sintersearchconn
12 dB
Ssearch_RAT = Ssearch_RATConn
0 dB
6 dB 0 dB
U900 -> U2100 -12 dB
U2100 -> U900 -18 dB
U2100 -> U2100 -18 dB
AdjiQoffset1
-101 dBm -10 dB
-115 dBm +10 dB
-115 dBm 0 dB
AdjiQoffset2
-10 dB
+10 dB
0 dB
HOPI AdjiQqualmin
U900
U900
AdjiQrxlevmin
* Negative (-) offset : Higher ranking BACKGROUND: Positive (+) offset : Lower Ranking To propose more traffic to U2100 when U900 Quality is Poor. UE on U900 is always searching for U2100Inter-Freq Cell Reselection if: CPICH EcNo of U900 is fall < -6 dBm U2100 is possible to be selected if : U2100 RSCP > -101 dBm U2100 EcNo > -12 dB U2100 always more attractive (having advantage) by -10 dB (adjiQoffset = -10) U900 setting less attractive (having reduction) by 10 dB (adjiQoffset = 10 dB) 7
15/06/2015
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
3. ADJI PLANNING RULE 10737 (F3)
HSDPA + R99
HSDPA + R99
HSDPA + R99
10712 (F2)
HSDPA + R99
HSDPA + R99
HSDPA + R99
2987 (F1)
HSDPA + R99
HSDPA + R99
HSDPA + R99
ADJI with BLHO Target Cell Enabled (1) Layering scenario defined on Co-located layer only. object
ADJI
8
Parameter
Description
This parameter indicates whether the neighbor cell is defined as a target cell for inter-frequency blind BlindHOtargetcell handover. Only one target cell per frequency can be defined.
15/06/2015
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
Range value
0 (disabled), 1 (enabled)
Unit Default setting Formula
-
0 (disable)
-
Current Value
Enabled (1)
4. MBLB (Multi Band Load Balancing) – Triggering Criteria The following MBLB triggers are enabled: • Blind HO in RAB Setup – U2100 & U900 layers for co-located sites • State Transition - U2100 & U900M layers for co-located sites Due to customer requirement, the following triggers are not enabled: • Inactivity triggered • Mobility triggered MBLB is also disabled for multi-RAB Setup - MBLBRABSetupMultiRAB=0 RAN 2172 Multi-band Load Balancing RAN2289 Blind HO at RAB setup
Inactivity triggered
w/out CM activation, in case: NRT/RT RAB is setup (1st RAB) AMR call is setup while UE with assigned NRT RAB is in CELL_DCH or CELL_FACH/PCH state
with CM activation for UE with HS-DSCH, in case: traffic inactivity detected (which otherwise would cause CTS to CELL_FACH)
Layering in state change w/out CM activation, in case: State change from CELL_FACH to DCH State change from PCH to DCH whenever fast call setup allowed (RAN1232)
Mobility triggered with CM activation in case: new cell added (1A/1C) with other PLFIdentifier than best AS cell removed cell (1B/1C) has other PLFIdentifier than best AS cell fast mobility was detected for UE SCC made to cell with other PLFIdentifier than in previous cell MBLB guard timer expired
Each type can be enabled on cell level independently on others, by corresponding source cell WCEL parameter (enabling in the target cell not needed): MBLBRABSetupEnabled 9
15/06/2015
MBLBInactivityEnabled
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
MBLBStateTransEnabled
MBLBMobilityEnabled
4. MBLB (Multi Band Load Balancing) – Triggering Criteria Object
Parameter
Range value
WCEL_HC MBLBRABSetupEnabled
Disabled (0), Enabled (1) Disabled (0), Enabled when UE is in Cell_FACH/Cell_PCH state (1), WCEL_HC MBLBRABSetupMultiRAB Enabled when UE is in Cell_DCH state (2), Enabled when UE is in Dell_DCH/Cell_FACH/Cell_PCH (3) WCEL_HC MBLBStateTransEnabled Disabled (0), Enabled (1) WCEL_HC MBLBInactivityEnabled Disabled (0), Enabled (1) WCEL_HC MBLBMobilityEnabled Disabled (0), Enabled (1)
10 15/06/2015
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
Unit
Formula
Default setting
-
-
-
-
-
-
Disabled (0) Enabled when UE is in Cell_FACH/Cell_PCH state (1) Disabled (0) Disabled (0) Disabled (0)
Current Value 1 0 1 0 0
4. MBLB (Multi Band Load Balancing) – Triggering Criteria
High band preference U2100
10737 (F3)
Low band preference U900
10712 (F2) 2987 (F1)
object ADJI HOPI WCEL_SIB WCEL_SIB
Parameter BlindHOtargetcell BlindHORSCPThr RACHIntraFreqMesQuant RACHInterFreqMesQuant
WCEL_HC WCEL_HC 11 15/06/2015
BlindHOEcNoThrTarget BlindHORSCPThrTarget
Range value
Unit
0 (disabled), 1 (enabled) -155…-25 EcNo (0), RSCP (1) EcNo (0), RSCP (1)
dBm -
-24..0 -155…-25
dB dBm
Formula
internal_value = gui_value
internal_value = gui_value * 2 internal_value = gui_value
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
Default setting
Current Value
0 (disable) -92 EcNo (0) EcNo (0)
Enabled (1) -92 RSCP (1) RSCP (1)
-24 (-12 dB) -95
-24 -92
Description
for SOURCE CELL RACHInterFreqMesQuant setting (whether EcNo or RSCP) for TARGET CELL)
4. MBLB (Multi Band Load Balancing) – Decision Criteria MBLB calculates the Preference Score for the possible target cells and source cell, and prioritizes the cell with the highest score. Target cells must have a result greater than zero for at least one of the following components of the Preference Score: • PrefLayerWeight, BandWeight or RSCPWeight
Blind HO is triggered if there is cell has higher preference score than source cell and target cell is not in HSPA load state. • The target cell with the highest Preference Score is prioritized. • If there are several equally good target cells, selection is randomized. Not considered for fast moving UEs
Preferred Freq weight
+
12 15/06/2015
=
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
Freq Band weight
+
Preference Score
Not considered for non-HSPA UEs or other with CS RAB in DCH cell
Only for Blind HO and layer in state transitions
RSCP Weight
+
Load Weight
4. MBLB (Multi Band Load Balancing) – Decision Criteria LaySelWeightPrefLayer LaySelWeightLoad
= 1000 (the preferred layer for different UE capability and service combinations in used). = 10 (HSPA Load taken into consideration in layer selection, and given weight 10 for every HSPA Load state)
Defined layer for each service combination and UE Capability
+
Preferred Freq weight LaySelWeightPrefLayer = 1000
13 15/06/2015
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
Freq Band weight LaySelWeightBand = 0 (not used)
+
=
RSCP Weight LaySelWeightRSCP = 0 (not Used)
+
Preference Score
Load Weight LaySelWeightLoad = 10 LowLoadPreference = 0 (disabled)
4. MBLB (Multi Band Load Balancing) – Decision Criteria object
Parameter
Formula
Default setting
Current Value
1…10000 -
-
internal_value = gui_value internal_value = gui_value
1000 -
1000 10712;10737;2987
PFLCSHSAMRNRT PFLCSHSNRT PFLCSHSStr PFLDCHSDAMR
-
-
internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value
-
10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737
PFLDCHSDAMRNRT PFLDCHSDNRT PFLDCHSDStr PFLMIMOAMR PFLMIMOAMRNRT PFLMIMONRT PFLMIMOStr PFL64QAMAMR PFL64QAMAMRNRT PFL64QAMNRT PFL64QAMStr PFLFDPCHAMR PFLFDPCHAMRNRT PFLFDPCHNRT PFLFDPCHStr PFLHSPAAMR PFLHSPAAMRNRT PFLHSPANRT PFLHSPAStr PFLR99AMR PFLR99AMRNRT PFLR99NRT PFLR99Str
-
-
internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value
-
10712;10737 10712;10737 10712;10737 2987 2987 2987 2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987 10712;10737;2987
PFL PFL
LaySelWeightPrefLayer PFLCSHSAMR
PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL PFL
14 15/06/2015
Range value Unit
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
Description Preferred Layer for CS voice HSPA AMR Preferred Layer for CS voice HSPA AMR and NRT Preferred Layer for CS voice HSPA NRT Preferred Layer for CS voice HSPA Streaming Preferred Layer for DC-HSDPA AMR Preferred Layer for DC-HSDPA AMR and NRT Preferred Layer for DC-HSDPA NRT Preferred Layer for DC-HSDPA Streaming Preferred Layer for MIMO AMR Preferred Layer for MIMO AMR and NRT Preferred Layer for MIMO NRT Preferred Layer for MIMO Streaming Preferred Layer for 64QAM AMR Preferred Layer for 64QAM AMR and NRT Preferred Layer for 64QAM NRT Preferred Layer for 64QAM Streaming Preferred Layer for FDPCH AMR Preferred Layer for FDPCH AMR and NRT Preferred Layer for FDPCH NRT Preferred Layer for FDPCH streaming Preferred Layer for HSPA AMR Preferred Layer for HSPA AMR and NRT Preferred Layer for HSPA NRT Preferred Layer for HSPA Streaming Preferred Layer for R99 AMR Preferred Layer for R99 AMR and NRT Preferred Layer for R99 NRT Preferred Layer for R99 streaming
4. MBLB (Multi Band Load Balancing) – Decision Criteria object
Parameter
PFL LaySelWeightBand RNMOBI PreferBandForLayering PFL LaySelWeightRSCP PFL BlindHORSCPThrBelow PFL BlindHORSCPThrAbove PFL LaySelWeightLoad PFL LaySelLowLoadPref
15 15/06/2015
Range value
Unit
Formula
Default setting
Current Value
1..10000 0..51 1..10000 -115 …-25 -115 …-25 1..10000 Disabled (0), Enabled (1)
dBm dBm -
internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value internal_value = gui_value
0 0 0 -126 0 0 Disabled (0)
0 0 0 0 0 20 0
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
5. MBLB (Multi Band Load Balancing) – Performance Result
Maintained & Improved Performance on RRC access and PS RAB Accessibility 16 15/06/2015
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
5. MBLB (Multi Band Load Balancing) – Performance Result
Pushed more traffic to 2100 and balancing Load on 2100. 17 15/06/2015
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
END
18 15/06/2015
© Nokia 2014 - NPI Report – V1.0 – NPI Team – CW18
View more...
Comments
