Turkcell 3G

8/3/2019 Turkcell 3G

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HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

Huawei Confidential

Security Level:2012-1-12

Turkcell Huawei 3G

Setup

Xu XingShao


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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


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HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 3

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+HR99+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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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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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

BarF2 cell to let UE resident on R99 cell

After service released in F2 cell, UE come back to F1 cell.

Parameter modify

BarF2 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

HSDPAUE

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

SETCORRMALGOSWITCH:,

SET DRD: ServiceDiffDrdSwitch=ON;


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F1 cell

Normal intra-frequency handover to neighborF1 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 neighborF2 cell

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


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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 HSDPACELL, Done in RNC LMT.

SETAllocation 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;


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Thank You

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