Nokia - 3G Network Layering 900 & 2100 Sharing Session - 15June2015

15/06/20151 Nokia 2014 - File Name - Version - Creator - DocID

NOKIA

3G Network Layering 900 & 2100 Band

SHARING SESSION15 June 2015

15/06/20152 Nokia 2014 - NPI Report V1.0 NPI Team CW18

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


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.

Periodic measurements and IF-HO if

target U2100 signal good enough

U2100

U2100

U900

U2100

U2100

U900


time

Ec/No

P CPICH of serving cell

1

2

3

Sintrasearch 5 (10 dB)

Sintersearch 3 (6 dB)

Ssearch_RAT 1 (2 dB)

Qqualmin (-18 dB)

-8

-12

-16

Intra Frequency Neighbor Measurement starts : CPCIH EcNo < Qqualmin+SintrasearchInter Frequency Neighbor Measurement starts : CPCIH EcNo < Qqualmin+Sintersearch



Qhyst2 : 2 dBQhyst2 FACH : 2 dBQhyst2 PCH : 2 dB

Treselection : 2 sTreselection FACH : 2 sTreselection PCH : 2 s

Cell Ranking occurred for each target cells following defined parameters:

AdjsQoffset1 : 0 dB (RSCP offset)AdjsQoffset2 : 0 dB (EcNo Offset)

AdjiQoffset1 : 0 dB (RSCP offset)AdjiQoffset2 : 0 dB (EcNo Offset)

time

Ec/No

P CPICH of serving cell

1

Qhyst2

Treselection

P CPICH of Neighbor cell

Selected Cell Rank :Ranking Value = Measured Neighbor Offset

Negative (-) offset : Higher ranking Positive (+) offset : Lower Ranking



Object Parameter Name Name UnitsFormula for

Getting Internal ValueDefault

Value (internal)Default

Value (GUI)Current

Value

WCEL_SIB QqualMin Minimum required quality level in the cell dB Internal_value = gui_value -18 -18 dB -18

WCEL_SIB QrxlevMin Minimum required RX level in the cell dBm internal_value = (gui_value - 1) / 2 -58 -115 dBm -56

WCEL_SIB Qhyst1 Cell reselection hysteresis 1 dB Internal_value = gui_value / 2 0 0 dB 1

WCEL_SIB Qhyst1FACH Cell reselection hysteresis 1 for FACH dB Internal_value = gui_value 0 0 dB 2

WCEL_SIB Qhyst1PCH Cell reselection hysteresis 1 for PCH dB Internal_value = gui_value 0 0 dB 2

WCEL_SIB Qhyst2 Cell reselection hysteresis 2 dB Internal_value = gui_value / 2 2 1 dB 1

WCEL_SIB Qhyst2FACH Cell reselection hysteresis 2 for FACH dB Internal_value = gui_value 2 2 dB 2

WCEL_SIB Qhyst2PCH Cell reselection hysteresis 2 for PCH dB Internal_value = gui_value 2 2 dB 2

WCEL_SIB Sintrasearch S intrasearch dB Internal_value = gui_value / 2 5 10 dB 5

WCEL_SIB SintrasearchConn S intrasearch Connected Mode dB Internal_value = gui_value / 2 5 10 dB 5

WCEL_SIB Sintersearch S intersearch dB Internal_value = gui_value / 2 4 8 dB 6 (U900) & 3 (U2100)

WCEL_SIB SintersearchConn S intersearch Connected Mode dB Internal_value = gui_value / 2 4 8 dB 6 (U900) & 3 (U2100)

WCEL_SIB Ssearch_RAT S search_RAT dB Internal_value = gui_value / 2 2 4 dB 0

WCEL_SIB Ssearch_RATConn S search_RAT Connected Mode dB Internal_value = gui_value / 2 2 4 dB 0

WCEL_SIB Treselection Cell reselection triggering time s Internal_value = gui_value 2 2 s 2

WCEL_SIB TreselectionFACH Cell reselection triggering time for FACH s Internal_value = gui_value * 5 10 2 s 10

WCEL_SIB TreselectionPCH Cell reselection triggering time for PCH s Internal_value = gui_value 2 2 s 2

HOPS AdjsPenaltyTime Cell Re-selection Penalty Time s internal_value = gui_value / 10 0 0 s 0

HOPS AdjsQoffset1 Cell Re-selection Quality Offset 1 (CPICH RSCP) dB Internal_value = gui_value 0 0 dB 0

HOPS AdjsQoffset2 Cell Re-selection Quality Offset 2 (CPICH EcNo) dB Internal_value = gui_value 0 0 dB 0)

HOPS AdjsQqualMin Cell Re-selection Minimum Quality dB Internal_value = gui_value -18 -18 dB -18

HOPS AdjsQrxlevMin Cell Re-selection Minimum RX Level dBm internal_value = (gui_value - 1) / 2 -58 -115 dBm -58

HOPS AdjsTempOffset1 Cell Re-selection Temporary Offset 1 - - 0 3 dB (0) 0

HOPS AdjsTempOffset2 Cell Re-selection Temporary Offset 2 - - 0 2 dB (0) 0

HOPI AdjiQoffset1 Cell Re-selection Quality Offset 1 (CPICH RSCP) dB Internal_value = gui_value 0 0 dB +10 (U900) & -10 (U2100)

HOPI AdjiQoffset2 Cell Re-selection Quality Offset 2 (CPICH EcNo) dB Internal_value = gui_value 0 0 dB +10 (U900) & -10 (U2100)

HOPI AdjiQqualMin Cell Re-selection Minimum Quality dB Internal_value = gui_value -18 -18 dB -12

HOPI AdjiQrxlevMin Cell Re-selection Minimum RX Level dBm internal_value = (gui_value - 1) / 2 -58 -115 dBm -51

HOPI AdjiTempOffset1 Cell Re-selection Temporary Offset 1 - - 0 3 dB (0) 0

HOPI AdjiTempOffset2 Cell Re-selection Temporary Offset 2 - - 0 2 dB (0) 0




BACKGROUND: 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)

WCELL U900 U2100

QqualMin - 18 dB - 18 dB

Qrxlevmin -115 dBm -115 dBm

Sintrasearch = Sintrasearchconn 10 dB 10 dB

Sintersearch = Sintersearchconn 12 dB 6 dB

Ssearch_RAT = Ssearch_RATConn 0 dB 0 dB

U2100

F1U900

F2 & F3

Bias to U2100HOPI

U900 -> U2100

U2100 -> U900

U2100 -> U2100

AdjiQqualmin -12 dB -18 dB -18 dB

AdjiQrxlevmin -101 dBm -115 dBm -115 dBm

AdjiQoffset1 -10 dB +10 dB 0 dB

AdjiQoffset2 -10 dB +10 dB 0 dB

* Negative (-) offset : Higher rankingPositive (+) offset : Lower Ranking


3. ADJI PLANNING RULE

10737 (F3)

10712 (F2)

2987 (F1)

HSDPA + R99 HSDPA + R99 HSDPA + R99



ADJI with BLHO Target Cell Enabled (1)

Layering scenario defined on Co-located layer only.

object Parameter Description Range value Unit Default setting Formula Current Value

ADJI BlindHOtargetcell

This parameter indicates whether the neighbor cell is defined as a target cell for inter-frequency blind handover. Only one target cell per frequency can be defined.

0 (disabled), 1 (enabled) - 0 (disable) - Enabled (1)


4. MBLB (Multi Band Load Balancing) Triggering Criteria

Blind HO at RAB setup Inactivity triggered Layering in state change Mobility 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

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)

with CM activation for UEwith HS-DSCH, in case: traffic inactivity detected (which

otherwise would cause CTS to CELL_FACH)

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

RAN2289

MBLBRABSetupEnabled MBLBInactivityEnabled MBLBStateTransEnabled MBLBMobilityEnabled

Each type can be enabled on cell level independently on others, by corresponding source cell WCEL parameter (enabling in the target cell not needed):

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 2172Multi-band Load Balancing



Object Parameter Range value Unit Formula Default settingCurrent

Value

WCEL_HC MBLBRABSetupEnabled Disabled (0), Enabled (1) - - Disabled (0) 1

WCEL_HC MBLBRABSetupMultiRAB

Disabled (0), Enabled when UE is in Cell_FACH/Cell_PCH state (1),Enabled when UE is in Cell_DCH state (2), Enabled when UE is in Dell_DCH/Cell_FACH/Cell_PCH (3)

- -

Enabled when UE is in Cell_FACH/Cell_PCHstate (1)

0

WCEL_HC MBLBStateTransEnabled Disabled (0), Enabled (1) - - Disabled (0) 1

WCEL_HC MBLBInactivityEnabled Disabled (0), Enabled (1) - - Disabled (0) 0

WCEL_HC MBLBMobilityEnabled Disabled (0), Enabled (1) - - Disabled (0) 0



object Parameter Range value Unit Formula Default setting Current Value Description

ADJI BlindHOtargetcell0 (disabled), 1 (enabled) - 0 (disable) Enabled (1)

HOPI BlindHORSCPThr -155-25 dBm internal_value = gui_value -92 -92 for SOURCE CELL

WCEL_SIB RACHIntraFreqMesQuant EcNo (0), RSCP (1) - EcNo (0) RSCP (1)WCEL_SIB RACHInterFreqMesQuant EcNo (0), RSCP (1) - EcNo (0) RSCP (1)

WCEL_HC BlindHOEcNoThrTarget -24..0 dB internal_value = gui_value * 2 -24 (-12 dB) -24

RACHInterFreqMesQuantsetting (whether EcNo or RSCP)

WCEL_HC BlindHORSCPThrTarget -155-25 dBm internal_value = gui_value -95 -92 for TARGET CELL)

High band preferenceU2100

Low band preferenceU900

10737 (F3)

10712 (F2)

2987 (F1)


4. MBLB (Multi Band Load Balancing) Decision Criteria

Preference

Score =

Not considered

for fast moving

UEs

Not considered

for non-HSPA

UEs or other with

CS RAB in DCH

cell

Preferred

Freq weight

Freq Band

weightRSCP

WeightLoad

Weight

+++

Only for Blind

HO and layer in

state transitions

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.



Preference

Score =

LaySelWeightPrefLayer= 1000

LaySelWeightBand = 0(not used)

LaySelWeightRSCP = 0(not Used)

LaySelWeightLoad = 10LowLoadPreference

= 0 (disabled)

Preferred

Freq weight

Freq Band

weightRSCP

WeightLoad

Weight

+++

LaySelWeightPrefLayer = 1000 (the preferred layer for different UE capability and service combinations in used).

LaySelWeightLoad = 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


4. MBLB (Multi Band Load Balancing) Decision Criteriaobject Parameter Range value Unit Formula Default setting Current Value Description

PFL LaySelWeightPrefLayer 110000 - internal_value = gui_value 1000 1000PFL PFLCSHSAMR - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for CS voice HSPA AMR

PFL PFLCSHSAMRNRT - - internal_value = gui_value - 10712;10737;2987Preferred Layer for CS voice HSPA AMR and NRT

PFL PFLCSHSNRT - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for CS voice HSPA NRTPFL PFLCSHSStr - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for CS voice HSPA StreamingPFL PFLDCHSDAMR - - internal_value = gui_value - 10712;10737 Preferred Layer for DC-HSDPA AMR

PFL PFLDCHSDAMRNRT - - internal_value = gui_value - 10712;10737Preferred Layer for DC-HSDPA AMR and NRT

PFL PFLDCHSDNRT - - internal_value = gui_value - 10712;10737 Preferred Layer for DC-HSDPA NRTPFL PFLDCHSDStr - - internal_value = gui_value - 10712;10737 Preferred Layer for DC-HSDPA StreamingPFL PFLMIMOAMR - - internal_value = gui_value - 2987 Preferred Layer for MIMO AMRPFL PFLMIMOAMRNRT - - internal_value = gui_value - 2987 Preferred Layer for MIMO AMR and NRTPFL PFLMIMONRT - - internal_value = gui_value - 2987 Preferred Layer for MIMO NRTPFL PFLMIMOStr - - internal_value = gui_value - 2987 Preferred Layer for MIMO StreamingPFL PFL64QAMAMR - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for 64QAM AMRPFL PFL64QAMAMRNRT - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for 64QAM AMR and NRTPFL PFL64QAMNRT - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for 64QAM NRTPFL PFL64QAMStr - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for 64QAM StreamingPFL PFLFDPCHAMR - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for FDPCH AMRPFL PFLFDPCHAMRNRT - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for FDPCH AMR and NRTPFL PFLFDPCHNRT - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for FDPCH NRTPFL PFLFDPCHStr - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for FDPCH streamingPFL PFLHSPAAMR - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for HSPA AMRPFL PFLHSPAAMRNRT - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for HSPA AMR and NRTPFL PFLHSPANRT - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for HSPA NRTPFL PFLHSPAStr - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for HSPA StreamingPFL PFLR99AMR - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for R99 AMRPFL PFLR99AMRNRT - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for R99 AMR and NRTPFL PFLR99NRT - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for R99 NRTPFL PFLR99Str - - internal_value = gui_value - 10712;10737;2987 Preferred Layer for R99 streaming



object Parameter Range value Unit Formula Default setting Current Value

PFL LaySelWeightBand 1..10000 - internal_value = gui_value 0 0RNMOBI PreferBandForLayering 0..51 - internal_value = gui_value 0 0PFL LaySelWeightRSCP 1..10000 - internal_value = gui_value 0 0PFL BlindHORSCPThrBelow -115 -25 dBm internal_value = gui_value -126 0PFL BlindHORSCPThrAbove -115 -25 dBm internal_value = gui_value 0 0PFL LaySelWeightLoad 1..10000 - internal_value = gui_value 0 20PFL LaySelLowLoadPref Disabled (0), Enabled (1) - internal_value = gui_value Disabled (0) 0


5. MBLB (Multi Band Load Balancing) Performance Result

Maintained & Improved Performance on RRC access and PS RAB Accessibility


5. MBLB (Multi Band Load Balancing) Performance Result

Pushed more traffic to 2100 and balancing Load on 2100.


END

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Nokia - 3G Network Layering 900 & 2100 Sharing Session - 15June2015