HUAWEI 2nd Carrier Service Strategy

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

Huawei Confidential

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23/4/17

3G Network 2 Carriers Service

Strategy Introduction

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Contents

• Network Structure

• Neighbors Configuration Strategy

• User Resident Strategy

• Strategy of Service Setup

• Strategy of Mobility Management

• LDR Strategy

• HSDPA code allocation strategy

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential

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Network Structure

F1 cell built a continues coverage network, served for R99 F2 cell is mainly for HSPA, cover for hot spot area.

H+R99 H+R99

R99+H R99+H R99+H R99+H

F2

F1

H+R99

GSM GSM GSM GSM

Handover

F1

F2

DRD DRD DRD





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2-Carrier Service Priority Strategy F1 Cell

R99 service has higher priority in F1 carrier. HSPA service has higher priority in F2 carrier.

ADD SPG: SpgId=1, PriorityServiceForR99RT=1,

PriorityServiceForR99NRT=1, PriorityServiceForHSPA=2; ADD SPG: SpgId=2, PriorityServiceForR99RT=2,

PriorityServiceForR99NRT=2, PriorityServiceForHSPA=1; MOD CELLSETUP: CellId=xxxxx1, SpgId=1; （ F1 cell） MOD CELLSETUP: CellId=xxxxx2, SpgId=2; （ F2 cell）





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Neighbors Configuration Strategy

For F1 Cell Add intra-freq F1 cell as neighbor cell. BlindHoFlag=False ADD INTERFREQNCELL: CellId=F1 Cell ID, RncId=8, NCellId=F1 Cell ID, BlindHoFlag=FALSE

Add co-coverage F2 cell as inter-freq neighbor cell,

BlindHoFlag=TRUE. admit blind handover for F2 cell to co-

coverage F1 cell. ADD INTERFREQNCELL: CellId=F1 Cell ID, RncId=8, NCellId=F2 Cell ID, BlindHoFlag=TRUE

Add 2G cell as neighbor cell. ADD GSMNCELL:





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Neighbors Configuration Strategy

For F2 Cell Add intra-freq F2 cell as neighbor cell. BlindHoFlag=False ADD INTERFREQNCELL: CellId=F2 Cell ID, RncId=8, NCellId=F1 Cell ID, BlindHoFlag=False

Add co-coverage F1 cell as inter-freq neighbor cell,

BlindHoFlag=TRUE, admit blind handover for F2 cell to co-coverage

F1 cell. ADD INTERFREQNCELL: CellId=F2 Cell ID, RncId=8, NCellId=F1Cell ID, BlindHoFlag=TRUE

Add different-coverage F1 cell as inter-freq neighbor cell,

BlindHoFlag=False. ADD INTERFREQNCELL: CellId=F2Cell ID, RncId=8, NCellId=F1 Cell ID, BlindHoFlag=False.





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User Resident Strategy

UE Resident on R99 in Idle State Bar F2 cell to let UE resident on R99 cell After service released in F2 cell, UE come back to F1 cell.

Parameter modify Bar F2 cell

MML Command

MOD CELLACCESSSTRICT: CellId=F2 Cell Id,

IsAccessClass0~15Barred=BARRED, CellBarred=BARRED





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Strategy of service setup

R99 UE All service setup and keep on F1 cell

HSDPA UE R99 service originated on F1 cell, and setup on F1 cell HSPA service originated on F1 cell, and DRD (Direct Retry

Decision) to F2 cell





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Strategy of service setup

Parameter modify Switch on DRD

MML Command SET CORRMALGOSWITCH: HoSwitch=INTER_FREQ_HHO_SWITCH-1,

DrdSwitch=COMB_SERV_DRD_SWITCH-0&DRD_SWITCH-

1&HSDPA_DRD_SWITCH-1&HSUPA_DRD_SWITCH-

1&INTER_HO_D2H_DRD_SWITCH-1&INTRA_HO_D2H_DRD_SWITCH-

1&RAB_DCCC_DRD_SWITCH-1&RAB_MODIFY_DRD_SWITCH-

1&RAB_SETUP_DRD_SWITCH-1; SET DRD: ServiceDiffDrdSwitch=ON;





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Strategy of Mobility Management F1 cell

Normal intra-frequency handover to neighbor F1 cell Handover to 2G cell for coverage reason perform inter-frequency neighbor from F1 to F2 co-coverage

cell

F2 cell Normal intra-frequency handover to neighbor F2 cell perform inter-frequency neighbor from F2 to F1 co-coverage

cell





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Strategy of Mobility Management When F1 carrier is over load, F1 CELL can only

handover to GSM, It is forbiden handover to F2. MOD CELLHOCOMM: CellId=xxxx1, InterFreqRATSwitch=INTERRAT;

When F2 carrier is over load, F2 CELL can only

handover to F1, It is forbiden handover to GSM. MOD CELLHOCOMM: CellId=xxxx2, InterFreqRATSwitch=INTERFREQ;





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LDR strategy

For carrier1, open uplink and downlink algothrim

swith, MOD CELLALGOSWITCH: CellId=xxxx1, NBMLdcAlgoSwitch=UL_UU_LDR-

1&DL_UU_LDR-1;

For carrier2, open downlink algothrim swith, MOD CELLALGOSWITCH: CellId=xxxx2, NBMLdcAlgoSwitch=DL_UU_LDR-1;





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LDR Action

Set LDR, when the load of carrier1 cell is too high, the first action

is to decrese Best-effort service bit rate MOD CELLLDR: CellId=xxxx1, DlLdrFirstAction= BERateRed, DlLdrSecondAction=

NoAct, DlLdrThirdAction= NoAct, DlLdrFourthAction=NoAct, UlLdrFirstAction=

BERateRed, UlLdrSecondAction= NoAct, UlLdrThirdAction=NoAct,

Set LDR, when the load of carrier2 cell is too high, the first

action is to handover from F2 to F1. MOD CELLLDR: CellId=xxxx2, DlLdrFirstAction= InterFreqLDHO,

DlLdrSecondAction= NoAct, DlLdrThirdAction= NoAct, DlLdrFourthAction=NoAct,

UlLdrFirstAction= NoAct, UlLdrSecondAction= NoAct, UlLdrThirdAction=NoAct,





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HSDPA code allocation Strategy

Modify HSDPA CELL, Done in RNC LMT. SET Allocation Code Mode=Manual, set Hs-Pdsch Code Number=1, set

Hs-Scch Code Number=3; set Code Hsdpa Switch=OFF MOD CELLHSDPA: CellId=xxxx1, AllocCodeMode=Manual,

HsPdschCodeNum=1, HScchCodeNum=3;CodeAdjForHsdpaSwitch=OFF; MOD CELLHSDPA: CellId=xxxx2, AllocCodeMode=Manual,

HsPdschCodeNum=1, HScchCodeNum=3;CodeAdjForHsdpaSwitch=OFF;

Set dynamic code switch open, Done in NodeB LMT, SET MACHSPARA: LOCELL=xxxx1, DYNCODESW=OPEN; SET MACHSPARA: LOCELL=xxxx2, DYNCODESW=OPEN;

Thank You

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HUAWEI 2nd Carrier Service Strategy

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