dokumen.tips_umts-multi-carrier-strategy-and-configuration-20100622.ppt

HUAWEI TECHNOLOGIES CO., LTD.
www.huawei.com
Huawei Confidential
Security Level: Internal
25/5/27
UMTS Multi-Carrier
Strategy and
Configuration
Hu Mingchao

HUAWEI TECHNOLOGIES CO., LTD. Huawei Confidential Page 2
Two-carrier strategy introduce
Strategy 1
Strategy 2 (Recommend)
Strategy 3
Strategy 4

Two-carrier strategy introduce
Strategy 1
F1 only supports R99;
F2 cell is barred and UE camp on F1.
Strategy 2 (Recommend)
Camp on F1 or F2 randomly,
Load balance
R99
R99+HSPA
F1
F2
R99
R99+HSPA
R99
R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
F1
F2
R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
F1
F2
R99+HSPA R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
Strategy 3
Camp on F1,
Service steering.
R99+HSPA
R99+HSPA
F1
F2
R99+HSPA R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
Strategy 4
Camp on F1,
Load balance.

Strategy 1
Strategy 3
Strategy 4

 UE with Idle Mode Strategy
 UE with Connected Mode Strategy
 Parameters configuration
Strategy 1

Idle Mode Selection/Reselection
strategy1
R99+HSDPA R99
HSDPA+R99(Barred)
R99+ HSDPA
F1
F2
Strategy 1:
F2 cell is barred to force UE to camp on F1 in idle mode.
After service released in F2 cell, UE come back to F1 cell.
when UE hang up in F2 cell, maybe UE will display “no service ” for a
short time because F2 is barred.
Reselect F1 after finish a
call on F2

Strategy 1

Connected mode mobility strategy (1/2)
• F1 R99 calls are soft handover between intra-freq cells.
• F2 HSDPA Cell change between intra-freq cells if there exists continuous F2
coverage.
• In hotspots, HSDPA calls are DRD from F1 to F2.
R99 R99
R99+HSDPA
R99 R99
R99+HSDPA
R99+HSDPA R99
HSDPA+R99
R99+HSDPA R99
HSDPA+R99
Initiates HSDPA
Service on F1
Setup HSDPA
service on F2
F1
F2
DRD to F2 based
on service
HSDPA users DRD
from F1 to F2

Connected mode mobility strategy (2/2)
HSDPA inter-freq HHO from F2 to F1 – leaving a hotspot
R99
HSDPA+R99
R99 R99+ HSDPA
HSDPA+R99
R99
HSDPA+r99
R99
HSDPA+R99
DRD to F2 to
HSDPA
Intra-freq HO to
DCH
R99+ HSDPA
User with HSDPA
service
R99+ HSDPA
R99+ HSDPA
HSDPA DRD from F1 to F2 – entering a hotspot
R99 R99+ HSDPA
HSDPA+R99
HSDPA service inter-freq
HHO to F1.
User with HSDPA service
in F2

Combined Service for Connected UE Strategy
◆ For Combined Service:
→Scenario A
Step1:CS is established on F1;
Step2:Established R99 PS service on F1 for HSDPA service request ;
Step3:CS service is released;
Step4:trigger DRD from F1 to F2,
HSDPA service remain in F2;
→Scenario B:
Step1:HSDPA terminals camp on F1;
Step2:HSDPA service DRD from F1 to F2 and established
on F2 finally;
Step3:Combined HSDPA+CS will be remained on F2;
Step4:If CS service released, HSDPA service remain in F2 OR
If HSDPA service released, CS service remain in F2;

Strategy 1

Parameter Configuration (1/5)
1. F2 is barred to force UE to camp on F1
MOD CELLACCESSSTRICT: CellId=xxxxx2, IsAccessClass0Barred=BARRED,
IsAccessClass1Barred=BARRED, IsAccessClass2Barred=BARRED,
IsAccessClass15Barred=BARRED, IdleCellBarred=BARRED,
IdleIntraFreqReselection=NOT_ALLOWED, IdleTbarred=D320, ConnCellBarred=NOT_BARRED;
2. Setting DRD switch and close combined service switch.
SET CORRMALGOSWITCH: HoSwitch=INTER_FREQ_HHO_SWITCH-1,
HspaSwitch=HSDPA_STATE_TRANS_SWITCH-0&HSUPA_STATE_TRANS_SWITCH-0,
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;

3. F1 and F2 configure to unidirectional blind HO.
ADD INTERFREQNCELL: CellId=xxxx1, RncId=xxxxx, NCellId=xxxx2, SIB11Ind=TRUE, SIB12Ind=FALSE, TpenaltyHcsReselect=D0,
BlindHoFlag=TRUE, NPrioFlag=FALSE;
R99+HSDPA R99
R99+HSDPA
F1
F2
R99
R99+HSDPA
R99+HSDPA
Bidirectional neighboring relation
Unidirectional neighboring relation
Unidirectional blind HO neighbouring

4. Neighbor cell configuration:
a) F1 &F2 configure intra-Freq Neighbor each other;
b) F2 configure inter-Freq unidirectional neighbor to F1 in the border
covered by F2;
c) F1& F2 configure the GSM neighbor cell.
Intra-freq neighbour:
ADD INTRAFREQNCELL: CellId=xxxxx, RncId=xxxxx, NCellId=xxxxx, SIB11Ind=TRUE,
SIB12Ind=FALSE, TpenaltyHcsReselect=D0, NPrioFlag=FALSE;
Inter-freq neighbour:
ADD INTERFREQNCELL: CellId=xxxx2, RncId=xxxxx, NCellId=xxxx1, SIB11Ind=TRUE,
SIB12Ind=FALSE, TpenaltyHcsReselect=D0, BlindHOFlag=FALSE, NPrioFlag=FALSE;
Inter-RAT neighbour: ADD GSMNCELL
R99+HSDPA R99
R99+HSDPA
F1
F2
R99
R99+HSDPA
R99+HSDPA
Unidirectional blind HO neighbouring

5. Load Control, open F1 uplink &downlink LDR algorithm

Set the LDR algorithm switch:

MOD CELLALGOSWITCH: NBMLdcAlgoSwitch=UL_UU_LDR-
1&DL_UU_LDR-1;

Set the LDR algorithm:

MOD CELLLDR: CellId=xxxx1, DlLdrFirstAction= BERateRed,
DlLdrSecondAction= NoAct, DlLdrThirdAction= NoAct,
DlLdrFourthAction=NoAct, UlLdrFirstAction= BERateRed, UlLdrSecondAction=
NoAct, UlLdrThirdAction=NoAct;
6. Configure F2 HSDPA code

RNC

MOD CELLHSDPA: CellId=xxxx2, AllocCodeMode=Manual, HsPdschCodeNum=1,
HsScchCodeNum=2;CodeAdjForHsdpaSwitch=OFF;

NodeB Dynamic Code Switch

SET MACHSPARA: LOCELL=xxxx2, DYNCODESW=OPEN;

7. F2 I-RAT HO using RSCP, and close the EcIo by setting the lower
value.
ADD CELLINTERRATHOCOV: CellId=xxxxx2,
InterRatReportMode=PERIODICAL_REPORTING, InterRATCSThd2DEcN0=-24,
InterRATR99PsThd2DEcN0=-24, InterRATHThd2DEcN0=-24;
8. Deactive the HSDPA function for the F1 cell.

DEA CELLHSDPA:CELLID=xxxxF1;

Advantage and disadvantage of Strategy
1
 No R99 and HSPA interference
in F1.
Advantage
 Lots of DRD attempts for HSPA service;
 Only F2 can carry HSPA service;
 Load is not balance between F1 and F2.
Disadvantage

Strategy 1
Strategy 3
Strategy 4

Idle Mode Selection/Reselection
strategy2
R99+HSDPA R99+HSDPA
HSDPA+R99
R99+ HSDPA
F1
F2 Strategy 2:
Camp on F1 or F2 randomly

Connected mode mobility strategy
F1 and F2 calls are soft handover between intra-freq cells.
HSDPA inter-freq HHO from F2 to F1 – leaving a hotspot
R99+HSDPA R99+ HSDPA
HSDPA+R99
R99+HSDPA R99+ HSDPA
HSDPA+R99
HSDPA service inter-freq HHO to F1.
User with HSDPA service in F2

Load balance strategy
Load balance between F1 and F2
in hotspots by DRD or LDR.
R99 users can configured BE
reduction as the first LDR actions.
F1
F2
R99+HSDPA R99+HSDPA
R99+HSDPA
HSDPA+R99
User from F1
by DRD or LDR
User from F2
by DRD or LDR
Name Parameters introduction
LdbDRDOffsetDCH
The threshold of remanent load offset between the current cell and the target cell when load
balancing DRD is applied for DCH users.
Recommended value: 5% (SET DRD)
LdbDRDOffsetHSDPA
The threshold of remanent load offset between the current cell and the target cell when load
balancing DRD is applied for HSDPA users.
Recommended value: 5% (SET DRD)
DlInterFreqHoCellLoad
SpaceThd
The inter-frequency neighboring cell could be selected as the destination of load handover only when
its load remaining space is larger than this threshold. Recommended value: 20% (ADD CELLLDR)
Notes: DRD and LDR will be introduced in detail in Load Control slides.

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;
Load balance DRD switch for HSDPA:

SET DRD: ServiceDiffDrdSwitch=OFF, LdbDrdSwitchDCH=OFF,
LdbDrdSwitchHSDPA=ON, LdbDRDchoice=UserNumber,
LdbDRDOffsetHSDPA=5;

MOD CELLDRD: CellId=0, ServiceDiffDrdSwitch=OFF, LdbDRDSwitchDCH=ON,
LdbDRDSwitchHSDPA=ON, LdbDRDchoice=UserNumber;

2. F1 and F2 configure to blind HO neighbor cell for the co-coverage cell each other.
 ADD INTERFREQNCELL: CellId=1, RncId=1, NCellId=2, SIB11Ind=TRUE, SIB12Ind=FALSE, TpenaltyHcsReselect=D0, BlindHOFlag=TRUE, NPrioFlag=FALSE;
Bidirectional blind HO neighbouring
R99+HSDPA R99+HSDPA
R99+HSDPA
F1
F2
R99+HSDPA
R99+HSDPA
R99+HSDPA

b) F2 configure inter-Freq unidirectional neighbor to F1 in the border covered by F2.
ADD INTRAFREQNCELL: CellId=xxxxx, RncId=xxxxx, NCellId=xxxxx, SIB11Ind=TRUE, SIB12Ind=FALSE,
TpenaltyHcsReselect=D0, NPrioFlag=FALSE;
ADD INTERFREQNCELL: CellId=xxxx2, RncId=xxxxx, NCellId=xxxx1, SIB11Ind=TRUE, SIB12Ind=FALSE,
TpenaltyHcsReselect=D0, BlindHOFlag=FALSE, NPrioFlag=FALSE;
R99+HSDPA R99+HSDPA
R99+HSDPA
F1
F2
R99+HSDPA
R99+HSDPA
R99+HSDPA

4. Load Control ,open F1 uplink &downlink LDR algorithm

Set the LDR and DCCC algorithm switch:

MOD CELLALGOSWITCH: NBMLdcAlgoSwitch=UL_UU_LDR-1&DL_UU_LDR-
1&CELL_CODE_LDR-1&CELL_CREDIT_LDR-1;

SET CORRMALGOSWITCH: ChSwitch=DCCC_SWITCH-1,
HspaSwitch=HSUPA_DCCC_SWITCH-1;


MOD CELLLDR: CellId=0, DlLdrFirstAction=CodeAdj, DlLdrSecondAction=BERateRed,
DlLdrThirdAction=InterFreqLDHO, DlLdrFourthAction=CSInterRatShouldBeLDHO,
UlLdrFirstAction=BERateRed, UlLdrSecondAction=InterFreqLDHO,

RNC




value.
ADD CELLINTERRATHOCOV: CellId=xxxxx2,
InterRatReportMode=PERIODICAL_REPORTING, InterRATCSThd2DEcN0=-24,
InterRATR99PsThd2DEcN0=-24, InterRATHThd2DEcN0=-24;

2
 Both F1 and F2 can establish
and carry on HSPA service.
 Balance load between F1 and
F2
 Keep DRD attempt in low
quantity and it is good KPI for
access.
Advantage
 R99 and HSPA service establish in same
cell, it would bring service interference
each other, and it should be affect the
call drop of AMR.
 F2 should be covered in a large
continuous area, otherwise it is not
good feeling for AMR when the CS users
hard handover between the inter
frequency.
Disadvantage

Strategy 1
Strategy 3
Strategy 4

 Camp on F1 in idle mode

Cell reselection make UE
camp on F1 cell in advance
by setting the threshold
and offset for inter-
frequency cell reselection
in idle mode .

Or forcibly camp ： F2 cell
is barred to force UE to
camp on F1 in idle mode.
(not recommend)
Idle Mode Strategy
 Open the LDR
algorithm, and set the
LDR action as
following:

Uplink: BE reduction-
>inter-Freq load HO->CS
inter-RAT load HO

Downlink: Code
Adjustment-> BE
reduction->inter-Freq load
HO->CS inter-RAT load HO
Connected mode Strategy
 Open DRD algorithm
switch;
 Close combined service
DRD switch.
 Service steering DRD: ON

The SPG for R99 is same for
F2&F1

The SPG for HSPA on F2 is
higher than F1.
 DCH Load balance DRD: OFF
 HSDPA Load balance DRD: OFF
Accessed mode Strategy
Conditions ： Continuous coverage for F1, not continuous coverage for F2
F1 & F2 can support the R99 and HSPA (recommend)
or F1 support R99 and F2 support HSPA (not recommend)
R99+HSPA
R99+HSPA
F1
F2
R99+HSPA R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
Strategy 3: Camp on F1 and Service Steering

Moving strategy:
Neighbor cell configuration:
F1
F2
intra-Freq Neighbor Inter-freq blind HO
neighbor
Common inter-freq
neighbor
Inter-RAT neighbor cell
GSM
F1
F2
GSM
Intra-Freq HO Access DRD
IRAT HO based coverage IRAT HO Inter-Freq HO
based load for LDR
 F1 &F2 configure intra-Freq Neighbor each other;
 F1 and F2 configure blind HO neighbor each other for the co-coverage cell, but not HO based
coverage;
 F2 configure inter-Freq unidirectional neighbor to F1 in the border covered by F2;
 F1& F2 configure the GSM neighbor cell, and GSM congfigure the F1 neighbor cell.
Strategy 3: Camp on F1 and Service Steering

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;
Service Steering DRD switch for HSDPA:

SET DRD: ServiceDiffDrdSwitch=ON;

ADD SPG: SpgId=1, PriorityServiceForR99RT=1, PriorityServiceForR99NRT=1,
PriorityServiceForHSPA=2;

ADD SPG: SpgId=2, PriorityServiceForR99RT=1, PriorityServiceForR99NRT=1,
PriorityServiceForHSPA=1;

MOD CELLSETUP: CellId=xxxxx1, SpgId=1; （ F1 ）

MOD CELLSETUP: CellId=xxxxx2, SpgId=2; （ F2 ）

2. F1 and F2 configure to blind HO neighbor cell for the co-coverage cell each other.
R99+HSDPA R99+HSDPA
R99+HSDPA
F1
F2
R99+HSDPA
R99+HSDPA
R99+HSDPA

b) F2 configure inter-Freq unidirectional neighbor to F1 in the border covered by F2.
ADD INTRAFREQNCELL: CellId=xxxxx, RncId=xxxxx, NCellId=xxxxx, SIB11Ind=TRUE, SIB12Ind=FALSE,
TpenaltyHcsReselect=D0, NPrioFlag=FALSE;
ADD INTERFREQNCELL: CellId=xxxx2, RncId=xxxxx, NCellId=xxxx1, SIB11Ind=TRUE, SIB12Ind=FALSE,
TpenaltyHcsReselect=D0, BlindHOFlag=FALSE, NPrioFlag=FALSE;
R99+HSDPA R99+HSDPA
R99+HSDPA
F1
F2
R99+HSDPA
R99+HSDPA
R99+HSDPA

4. Load Control ,open F1 uplink &downlink LDR algorithm

Set the LDR and DCCC algorithm switch:

MOD CELLALGOSWITCH: NBMLdcAlgoSwitch=UL_UU_LDR-1&DL_UU_LDR-
1&CELL_CODE_LDR-1&CELL_CREDIT_LDR-1;

SET CORRMALGOSWITCH: ChSwitch=DCCC_SWITCH-1,
HspaSwitch=HSUPA_DCCC_SWITCH-1;


MOD CELLLDR: CellId=0, DlLdrFirstAction=CodeAdj, DlLdrSecondAction=BERateRed,
DlLdrThirdAction=InterFreqLDHO, DlLdrFourthAction=CSInterRatShouldBeLDHO,
UlLdrFirstAction=BERateRed, UlLdrSecondAction=InterFreqLDHO,
UlLdrThirdAction=CSInterRatShouldNotLDHO;

RNC




value.
ADD CELLINTERRATHOCOV: CellId=xxxxx2, InterRatReportMode=PERIODICAL_REPORTING,
InterRATCSThd2DEcN0=-24, InterRATR99PsThd2DEcN0=-24, InterRATHThd2DEcN0=-24;
7. Cell reselection make UE camp on F1 cell in advance by setting
the threshold and offset for inter-frequency cell reselection in
idle mode.

F1: MOD UCELLSELRESEL: CellId=xxxxxx, IdleSintersearch=0;

F2: MOD UCELLSELRESEL: CellId=xxxxxx, IdleSintersearch=9;

F1->F2: ADD INTERFREQNCELL: RncId=x, CellId=xxxxx, NCellRncId=x, NCellId=xxxxx,
IdleQoffset1sn=50, IdleQoffset2sn=50;

F2->F1: ADD INTERFREQNCELL: RncId=x, CellId=xxxxx, NCellRncId=x, NCellId=xxxxx,
IdleQoffset1sn=-50, IdleQoffset2sn=-50;

3
 The interference is small
between the HSPA service and
the AMR.
 It should be good feeling for
R99 service when F2 is not
continuous coverage, because
the R99 service does not hard
handover in this area.
Advantage
 The HSPA accessibility should be affect
by the DRD.
 The HSPA call drop should be increase
when HSPA service move with the hard
handover in these not continuous
coverage area for F2.
 PS call drop should be increase when
opening the function of state transition.
Disadvantage

Strategy 1
Strategy 3
Strategy 4

Strategy 4: Camp on F1 and Load balance
R99+HSPA
R99+HSPA
F1
F2
R99+HSPA R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
R99+HSPA
Conditions ： Continuous coverage for F1, not continuous coverage for F2
F1 & F2 can support the R99 and HSPA
A few AMR users, most users is HSPA.
Idle Mode Strategy Connected mode Strategy
Accessed mode Strategy
 Camp on F1 in idle mode

Cell reselection make UE
camp on F1 cell in advance
by setting the threshold
and offset for inter-
frequency cell reselection
in idle mode .

Or forcibly camp ： F2 cell
is barred to force UE to
camp on F1 in idle mode.
(not recommend)
 Open the LDR
algorithm, and set the
LDR action as
following:

Uplink: BE reduction-
>inter-Freq load HO->CS
inter-RAT load HO

Downlink: Code
Adjustment-> BE
reduction->inter-Freq load
HO->CS inter-RAT load HO
 Open DRD algorithm switch;
 Close combined service DRD
switch.
 DCH Load balance DRD: OFF
 HSDPA Load balance DRD: ON

Load balance DRD choice: user number

Load balance DRD offset for HSDPA: 5

Load balance DRD power remain
threshold for HSDPA :90

Moving
strategy:
Neighbor cell configuration:
F1
F2
GSM
Strategy 4: Camp on F1 and Load balance
intra-Freq Neighbor Inter-freq blind HO
neighbor
Common inter-freq
neighbor
Inter-RAT neighbor cell
F1
F2
GSM
Intra-Freq HO Access DRD
IRAT HO based coverage IRAT HO Inter-Freq HO
based load for LDR
 F1 &F2 configure intra-Freq Neighbor each other;
 F1 and F2 configure blind HO neighbor each other for the co-coverage cell, but not HO based
coverage;
 F2 configure inter-Freq unidirectional neighbor to F1 in the border covered by F2;
 F1& F2 configure the GSM neighbor cell, and GSM congfigure the F1 neighbor cell.

4
 The R99 service does not hard
handover in not continuous
coverage area for F2;
 The resource of two carriers
should be used fully.
Advantage
 There are half HSPA users on F1, and it
will interfere the AMR users.
 The accessibility should be affect by the
half users DRD
 It should be ease congestion in F1 when
there are many traffic for R99 in F1, and
it is bad feeling for HSPA service in F1.
 PS call drop should be increase when
opening the function of state transition.
Disadvantage

dokumen.tips_umts-multi-carrier-strategy-and-configuration-20100622.ppt

More Related Content

Similar to dokumen.tips_umts-multi-carrier-strategy-and-configuration-20100622.ppt

dokumen.tips_umts-multi-carrier-strategy-and-configuration-20100622.ppt

Editor's Notes