WCDMA Multi-Band and Multi-Carrier Solution

Multi-Band and Multi-Multi-Band and Multi-Carrier Solution

www.huawei.com

Copyright © 2010 Huawei Technologies Co., Ltd. All rights reserved.

ForewordWith continuous construction of networks and continuous development of radio services the operator needs to expand thedevelopment of radio services, the operator needs to expand the capacity of the existing network.

Due to the network construction strategy at the early stage and the difference between the frequency band used at the early stage and the frequency band used for capacity expansion, the function and performance requirements of the network whose capacity isand performance requirements of the network whose capacity is to be expanded are different from those of the existing network.

Based on different scenarios and requirements, Huawei puts forward a series of multi-band and multi-carrier solutions.

Copyright © 2010 Huawei Technologies Co., Ltd. All rights reserved. Page2

Objectivesj

Upon completion of this course, you will be able to:

Understand the application scenarios of the multi-band and

multi-carrier solution

Understand the main requirements and solutions in various

scenarios


Contents

1. Requirements of Expansion

2. Application Scenario Analysis and Networking Strategy

3. Description of the Overall Strategyp gy


Requirements of Expansionq p

With continuous development of radio services, the operator

needs to expand the capacity of the existing network. Use a high frequency band to expand the network capacity

1

Continuous Multi-band and 1. Function

network capacity

Continuous development of services

multi-carrier capacity

expansion

requirements2. Performance requirements

Use a low frequency band to ensure high

transmission2


transmission performance

Page5

Requirements of Expansionq pFunction requirements

After using other frequency bands or other carriers to expand the capacity of the existingAfter using other frequency bands or other carriers to expand the capacity of the existing UMTS network, the network operator should pay attention to the following points:

Impact of capacity expansion on the experience of the existing users

Load balancing status of the network before and after capacity expansion

Performance requirementsDifferent from the single-band networking mode, the operator should pay special attention to the following points in the multi-band and multi-carrier networking mode:

Access success rate: retry access success rate between different frequency bands and carriers

Handover success rate: handover success rate between different frequency bands and carrierscarriers

Access delay: access delay upon redirection


Contents



3. Description of the Overall Strategy


Contents


2.1 Low Frequency Band for Wide Coverage/High Frequency Band for Dense Coverage

2.2 Blind Compensation/ Capacity Expansion for Inter-Band

Network (High-Band Capacity Expansion)


Network (Low-Band Capacity Expansion)

2.4 Intra-Band Network


Low Frequency Band for Wide Coverage/High Frequency Band for Dense CoverageFrequency Band for Dense Coverage

The high frequency band is used for network construction in urban areas.

The low frequency band is used for wide coverage in suburban

areas/rural areas.



Wide coverage is implemented in suburban areas and rural areas.

Service continuity is ensured in the border areas between the low

frequency band and the high frequency band.

UMTS900UMTS900

UMTS2100 UMTS2100UMTS2100 UMTS2100



For details about the intra-band and multi-carrier solution for urban areas, see the multi-carrier

solution.

Border areas between the low frequency band and the high frequency band are configured as

inter-frequency neighbor cells. The version later than R10 supports 64 inter-frequency neighbor

cells, unlimited number of frequencies, and a maximum of three frequency bands.



Mobility policySupport two way handover between UMTS2100 and UMTS900 (UMTS900 must supportSupport two-way handover between UMTS2100 and UMTS900 (UMTS900 must support

the HSPA+R99 hybrid service).

For the handover from UMTS2100 to UMTS900, all the UMTS2100 cells that are located

on the borders of urban areas are configured with UMTS900 cells as inter frequencyon the borders of urban areas are configured with UMTS900 cells as inter-frequency neighbor cells.

For the handover from UMTS900 to UMTS2100, if UMTS2100 has two frequencies, the frequency F1 is used as the preferred cell for coverage based inter-frequency handover Infrequency F1 is used as the preferred cell for coverage based inter-frequency handover. In this case, UMTS900 only needs to be configured with a single inter-frequency neighbor

cell F1. (Among the two frequencies, if only F1 supports the HSPA+R99 hybrid service, F1

is recommended.))

Service bearer policy

For the detailed policy for the UMTS2100, see the dual-carrier policy.


UMTS900 supports the R99+HSPA hybrid service.

Page12

Contents


2.1 Low Frequency Band for Wide Coverage/High Frequency

Band for Dense Coverage

2.2 Blind Compensation/ Capacity Expansion for Inter-Band Network (High-Band Capacity Expansion)





Blind Compensation/Capacity Expansion for Inter-Band Network (High Band Capacity Expansion)Network (High-Band Capacity Expansion)

Ensure load balancing between the frequency band for capacity

i d th i ti f b d d i ti itexpansion and the existing frequency band, and ensure service continuity

in the areas with discontinuous coverage of the frequency band for

capacity expansion.

The high frequency band differs from the low frequency band in terms of

coverage.

UMTS2100 UMTS2100

UMTS900 UMTS900

F 2

F 1

UMTS2100 UMTS2100

UMTS900 UMTS900

UMTS2100 UMTS2100

F 2

F 3

F 1

UMTS2100 UMTS2100


High-Band Capacity Expansion (Two Frequencies)(Two Frequencies)

Solution 1: random camping and load balancing

(recommended)Two-way intra-frequency soft

handover

One-way

Load DRD

Cell reselection


Solution 1: Random Camping and Load Balancing (Camping Policy)Balancing (Camping Policy)

For the case in which UMTS2100 and UMTS900 differ

greatly in terms of coverage, it is recommended that random

camping should be adopted and the number of times for

DRD should be reduced to lower the probability of DRD

failure. S tti f Idl St t C t l F1 Carrier F2 CarrierSettings for Idle State Control F1 Carrier

(F1->NCellId)F2 Carrier

(F2->NCellId)

Central and neighbor cell load level offset 1 for idle mode (IdleQoffset1sn) 0 0( )

Central and neighbor cell load level offset 2 for idle mode (IdleQoffset2sn) 0 0


Solution 1: Random Camping and Load Balancing (Mobility Policy)Balancing (Mobility Policy)

Support the handover from UMTS2100 F2 (hotspot coverage) to

UMTS900 F1 ( ti ) Th b d h d fUMTS900 F1 (continuous coverage). The coverage based handover from

F1 to F2 is not recommended.

Neighbor cells with the same carrier are configured as intra-frequency neighbor g g q y g

cells.

The F1 and F2 cells with different frequencies but the same coverage are

configured as inter frequency blind handover cells (BlindHOFlag=TRUE)configured as inter-frequency blind handover cells (BlindHOFlag=TRUE).

The F2 cell on the edge of the F2 carrier and the non-hotspot F1 neighbor cell

are configured as one-way inter-frequency neighbor cells (Hot F2 Cell -> No

Hot F1 Cell).

Configure 2G inter-RAT neighbor cells for the two cells.



When users of the F2 carrier move out of the hotspot, inter-frequency

h d f th F2 ll t th h t t F1 ll i f d di tlhandover from the F2 cell to the non-hotspot F1 cell is performed directly.

When users move from the non-hotspot area into the hotspot area, intra-

frequency handover is performed directly between the cells of the F1frequency handover is performed directly between the cells of the F1

carrier.


Solution 1: Random Camping and Load Balancing (Service Bearer Policy)Balancing (Service Bearer Policy)

Follow the baseline Networking Policy F1 Carrier F2 Carrier

C i i li NOT B d NOT B dconfiguration when

setting the service

priority of the carriers

Carrier camping policy NOT_Barred NOT_Barred

Service priority of R99 RT service 1 1

Service priority of R99 NRT service 1 1

Service priority of HSPA service 1 1

HSDPA code allocation mode Manual Manualpriority of the carriers.

The service bearer is

not configured with

HSDPA code allocation mode Manual Manual

Code Number for HS-PDSCH 5 5

Code Number for HS-SCCH 3 3

The Offset of HSPA Total Power[0.1dB] 0 0

Code Adjust Switch for HSDPA ON ONg

priority.

Follow the baseline

Dynamic Code Switch for NodeB ON ON

Dynamic CE for NodeB ON ON

Code Number for E-AGCH 1 1

Code Number for E-RGCH/E-HICH 1 1

configuration when

setting the HSUPA cell.

Maximum Target Uplink Load Factor 75 75

Target Non-serving E-DCH to Total E-DCH Power ratio[%] 0 0


Solution 1: Random Camping and Load Balancing (Access Policy)Balancing (Access Policy)

The number of Access Policy Setting F1 Carrier F2 Carrier

Uplink CAC algorithm ENU ENU

HSDPA users can be

balanced between

Uplink CAC algorithm admission admission

Downlink CAC algorithm Loose admission

Loose admission

CE resource admission switch ON ON

Downlink code resource admission switch ON ON

two carriers in access

state.

HSPA Uu load admission control ON ON

HSDPA GBR/PBR measurement switch ON ON

DRD global function switch ON ON

HSPA DRD switch ON ON

Service differential DRD algorithm OFF OFF

Load balance DRD switch for DCH OFF OFF

Load balance DRD switch for HSDPA ON ON

Load balance DRD choice UserNumber. UserNumber.

Load balance DRD offset for HSDPA 10% 10%

Dl load balance DRD power remain threshold for HSDPA 100% 100%

Maximum HS-DSCH user number 64 64


EcNo threshold for direct retry -12 -12

Page20

Solution 1: Random Camping and Load Balancing (Connection State Policy)Balancing (Connection State Policy)

Reference LDR SettingF1/F2 Carrier

Uplink Downlink

Power resource triggering ON ON

configurations for

the LDR policy of

gg g

Code resource triggering - ON

CE resource triggering ON

LDR action 1 BE traffic rate reduction Code adjust

the F1 and F2

carriersLDR action 2

Inter-RAT load handover of the CS

domain

BE traffic rate reduction

LDR action 3 - Inter-RAT load

handover of the CS domain

Number of users for BE rate reduction 1 1

Number of users for inter-RAT load handover of the CS domain 3 3

Inter-frequency load handover triggered by code resource congestion - ONtriggered by code resource congestion

Ul LDR credit SF reserved threshold SF8 -

Gold user load control switch ON

Integrate Priority Configured Reference ARP

Indicator of Carrier Type Priority DCH


yp y

Page21

High-Band Capacity Expansion (Two Frequencies)(Two Frequencies)

Solution 2: Aptitudinal Camping and Load Balancing

Two-way intra-frequency softfrequency soft

handover

One-way

Load DRD

Cell reselection


Solution 2: Aptitudinal Camping and Load Balancing (Camping Policy)and Load Balancing (Camping Policy)

Aptitudinal camping on F2In case of capacity expansion through discontinuous coverage of UMTS2100, the

signals covering the UMTS900 cell are slightly stronger than those covering the

UMTS2100 cell. If a UE is prone to camp on the UMTS900 cell, when the UE is blind

handed over to the UMTS2100 neighbor cell covered by weak signals during the

DRD process at the RAB stage in connection state, DRD fails. Therefore, aptitudinal

camping on UMTS2100 is recommended.

Settings for Idle State Control F1 Carrier (F1->NCellId)

F2 Carrier (F2->NCellId)

Central and neighbor cell load level offset 1 for idle mode (IdleQoffset1sn) -5 0offset 1 for idle mode (IdleQoffset1sn)

Central and neighbor cell load level offset 2 for idle mode (IdleQoffset2sn) -5 0


Solution 2: Aptitudinal Camping and Load Balancing (Mobility Policy)Balancing (Mobility Policy)


UMTS900 F1 (continuous coverage). The coverage based

handover from F1 to F2 is not recommended.

N i hb ll ith th i fi d i t f i hb Neighbor cells with the same carrier are configured as intra-frequency neighbor

cells.


configured as inter-frequency blind handover cells (BlindHOFlag=TRUE).


are configured as one-way inter-frequency neighbor cells (Hot F2 Cell -> Noare configured as one way inter frequency neighbor cells (Hot F2 Cell > No

Hot F1 Cell).








carrier.


Solution 2: Aptitudinal Camping and Load Balancing (Service Bearer Policy)Balancing (Service Bearer Policy)

Follow the baseline configuration when

Networking Policy F1 Carrier F2 Carrier

Carrier camping policy NOT Barred NOT Barredconfiguration when setting the service priority of the carriers.






The service bearer is not configured with priority.




C d Adj t S it h f HSDPA ON ONp y

Follow the baseline

Code Adjust Switch for HSDPA ON ON





configuration when setting the HSUPA cell.

Code Number for E RGCH/E HICH 1 1




Solution 2: Aptitudinal Camping and Load Balancing (Access Policy)Balancing (Access Policy)

The number of HSDPA users can be balanced between two carriers in access statecarriers in access state.

Access Policy Setting F1 Carrier F2 Carrier

Uplink CAC algorithm ENU admission ENU admission

Downlink CAC algorithm Loose admission Loose admission









Load balance DRD switch for HSDPA ON ONLoad balance DRD switch for HSDPA ON ON






Maximum HS DSCH user number 64 64


Page27

Solution 2: Aptitudinal Camping and Load Balancing (Connection State Policy)Balancing (Connection State Policy)

Reference configurations for the LDR policy of the F1 and F2

carriersLDR Setting

F1/F2 Carrier

Uplink Downlink


Code resource triggering - ONCode resource triggering ON



LDR action 2 Inter-RAT load handover of the CS domain BE traffic rate reduction

LDR action 3 - Inter-RAT load handover of the CS domain



Inter-frequency load handover triggered by code resource congestion - ON







Page28

High-Band Capacity Expansion (Three Frequencies)Frequencies)


(recommended)



For the case in which UMTS2100 and UMTS900 differ greatly in terms of

it i d d th t d i h ld b d t dcoverage, it is recommended that random camping should be adopted

and the number of times for DRD should be reduced to lower the

probability of DRD failure.



Support the handover from UMTS2100 F2/F3 (hotspot coverage) to UMTS900 F1

(continuous coverage) The coverage based handover from F1 to F2/F3 is not(continuous coverage). The coverage based handover from F1 to F2/F3 is not

recommended. The coverage based handover between F2/F3 is not

recommended.

Neighbor cells with the same carrier are configured as intra-frequency neighbor cells.

The F2 and F3 cells with different frequencies but the same coverage are configured as

the inter-frequency blind handover cells of the F1 cell (BlindHOFlag=TRUE).





The F2/F3 cell on the edge of the F2/F3 carrier and the non-hotspot F1 neighbor cell are

configured as one-way inter-frequency neighbor cells (Hot F2/F3 Cell -> No Hot F1 Cell).


Configure 2G inter-RAT neighbor cells for the three cells.

Page31


When users of the F2/F3 carrier move out of the hotspot, inter-frequency

h d f th F2/F3 ll t th h t t F1 ll i f dhandover from the F2/F3 cell to the non-hotspot F1 cell is performed

directly.

When users move from the non-hotspot area into the hotspot area, intra-When users move from the non hotspot area into the hotspot area, intra

frequency handover is performed directly between the cells of the F1

carrier.




Networking Policy F1 Carrier F2 Carrier F3 Carrier

Carrier camping policy NOT_Barre NOT_Barre NOT Barredconfiguration when setting the service priority of the carriers. The service bearer is not

Carrier camping policy d d NOT_Barred

Service priority of R99 RT service 1 1 1

Service priority of R99 NRT service 1 1 1

Service priority of HSPA service 1 1 1

HSDPA code allocation mode Manual Manual Manual

configured with priority. HSDPA code allocation mode Manual Manual Manual

Code Number for HS-PDSCH 5 5 5

Code Number for HS-SCCH 3 3 3

The Offset of HSPA Total Power[0.1dB] 0 0 0

Code Adjust Switch for HSDPA ON ON ON

Follow the baseline configuration when setting the HSUPA cell


Dynamic Code Switch for NodeB ON ON ON

Dynamic CE for NodeB ON ON ON

Code Number for E-AGCH 1 1 1

Code Number for E-RGCH/E-HICH 1 1 1setting the HSUPA cell. Maximum Target Uplink Load Factor 75 75 75

Target Non-serving E-DCH to Total E-DCH Power ratio[%] 0 0 0



The number of HSDPA users can be balanced between two

carriers in access state. Access Policy Setting F1 Carrier F2 Carrier F3 Carrier

Uplink CAC algorithm ENU admission ENU admission ENU admission

Downlink CAC algorithm Loose admission Loose admission Loose admissiong

CE resource admission switch ON ON ON

Downlink code resource admission switch ON ON ON

HSPA Uu load admission control ON ON ON

HSDPA GBR/PBR measurement switch ON ON ON

DRD global function switch ON ON ON

HSPA DRD switch ON ON ON

Service differential DRD algorithm OFF OFF OFF

Load balance DRD switch for DCH OFF OFF OFF

Load balance DRD switch for HSDPA ON ON ON

Load balance DRD choice UserNumber. UserNumber. UserNumber.

Load balance DRD offset for HSDPA 10% 10% 10%

Dl load balance DRD power remain threshold for HSDPA 100% 100% 100%

Maximum HS-DSCH user number 64 64 64


EcNo threshold for direct retry -12 -12 -12

Page34


Reference configurations for the LDR policy of the F1 carrier

LDR SettingF1 Carrier

Uplink Downlink






Inter RAT load handover of the CSLDR action 3 - Inter-RAT load handover of the CS domain



I t f l d h d t i d bInter-frequency load handover triggered by code resource congestion - ON






Page35


Reference configurations for the LDR policy of the F2/F3

carrier


High-Band Capacity Expansion (Three Frequencies)Frequencies)



Solution 2: Aptitudinal Camping and Load Balancing (Camping Policy)Balancing (Camping Policy)

Aptitudinal camping on F2/F3I f it i th h di ti f UMTS2100 th i lIn case of capacity expansion through discontinuous coverage of UMTS2100, the signals

covering the UMTS900 cell are slightly stronger than those covering the UMTS2100 cell. If a UE

is prone to camp on the UMTS900 cell, when the UE is blind handed over to the UMTS2100

neighbor cell covered by weak signals during the DRD process at the RAB stage in connection

state, DRD fails. Therefore, aptitudinal camping on UMTS2100 is recommended.






recommended.






The F1 cell is not configured with inter-frequency blind handover neighbor cells.








directly.



carrier.




Networking Policy F1 Carrier F2 Carrier F2 Carrier

Carrier camping policy NOT_Barred NOT_Barred NOT_Barred

configuration when setting the service priority of the carriers.





The service bearer is not configured with priority.





D namic Code S itch for NodeB ON ON ONp y

Follow the baseline




Code Number for E-RGCH/E-HICH 1 1 1

Maximum Target Uplink Load Factor 75 75 75

configuration when setting the HSUPA cell.






carriers in access state. Access Policy Setting F1 Carrier F2 Carrier F3 Carrier


Downlink CAC algorithm Loose admission Loose admission Loose admission








Load balance DRD switch for DCH - OFF OFF

Load balance DRD switch for HSDPA ON ONLoad balance DRD switch for HSDPA - ON ON

Load balance DRD choice - UserNumber. UserNumber.

Load balance DRD offset for HSDPA - 5% 5%

Dl load balance DRD power remain threshold for HSDPA - 100% 100%


Maximum HS-DSCH user number - 64 64

EcNo threshold for direct retry - -12 -12

Page42




Uplink Downlink


Code resource triggering - ONCode resource triggering ON




Inter-RAT load handover of the CSLDR action 3 - Inter-RAT load handover of the CS domain



Inter-frequency load handover triggered by ONcode resource congestion - ON






yp y

Page43



carrier


Contents






2.3 Blind Compensation/ Capacity Expansion for Inter-Band Network (Low-Band Capacity Expansion)



Blind Compensation/Capacity Expansion for Inter-Band N t k (L B d C it E i )Network (Low-Band Capacity Expansion)

Ensure load balancing between the frequency band for capacity

i d th i ti f b d d i ti itexpansion and the existing frequency band, and ensure service continuity

in the frequency band for capacity expansion.

The high frequency band differs from the low frequency band in terms ofThe high frequency band differs from the low frequency band in terms of

coverage.

F 2 UMTS900 UMTS900

UMTS2100UMTS2100UMTS2100 UMTS2100F 1

F 2

F 3 UMTS900 UMTS900

UMTS900 UMTS900 UMTS900 UMTS900


UMTS2100UMTS2100UMTS2100F 1

UMTS2100

Page46

Low-Band Capacity Expansion (Two Frequencies)(Two Frequencies)


(recommended)



For the case in which UMTS2100 and UMTS900 differ greatly in terms of coverage,

it is recommended that random camping should be adopted and the number ofit is recommended that random camping should be adopted and the number of

times for DRD should be reduced to lower the probability of DRD failure.



Central and neighbor cell load level offset 1 forCentral and neighbor cell load level offset 1 for idle mode (IdleQoffset1sn) 0 0

Central and neighbor cell load level offset 2 for idle mode (IdleQoffset2sn) 0 0




UMTS900 F1 ( ti ) Th b d h d fUMTS900 F1 (continuous coverage). The coverage based handover from

F1 to F2 is not recommended.

Neighbor cells with the same carrier are configured as intra-frequency neighbor g g q y g

cells.


configured as inter frequency blind handover cells (BlindHOFlag=TRUE)configured as inter-frequency blind handover cells (BlindHOFlag=TRUE).


are configured as one-way inter-frequency neighbor cells (Hot F2 Cell -> No

Hot F1 Cell).








carrier.





Carrier camping policy NOT_Barred NOT_Barredconfiguration when setting the service priority of the carriers. The

i b i t




HSDPA code allocation mode Manual Manualservice bearer is not configured with priority.





Follow the baseline fi i h





C d N b f E RGCH/Econfiguration when setting the HSUPA cell.





Total E DCH Power ratio[%]

Page51


The number of HSDPA users can be balanced between two carriers in access state.carriers in access state.




C O OCE resource admission switch ON ON




DRD global function switch ON ONDRD global function switch ON ON




Load balance DRD switch for HSDPA ON ON







Page52


Reference configurations for the LDR policy of the F1 and

F2 carriersLDR Setting

F1/F2 Carrier

Uplink Downlink

Power resource triggering ON ONPower resource triggering ON ON














Page53

Low-Band Capacity Expansion (Two Frequencies)(Two Frequencies)




Aptitudinal camping on F1

In case of capacity expansion through discontinuous coverage of UMTS2100, the signals covering the UMTS900 cell are slightly stronger than those covering the UMTS2100 cell. If a UE is prone to camp on the UMTS900 cell, when the UE is blind handed over to the UMTS2100 neighbor cell covered by weak signals during the DRD process at the RAB stage in connection state DRD fails Therefore



process at the RAB stage in connection state, DRD fails. Therefore, aptitudinal camping on UMTS2100 is recommended.

(F1 >NCellId) (F2 >NCellId)Central and neighbor cell load level offset 1 for idle

mode (IdleQoffset1sn) 0 -5

Central and neighbor cell load level offset 2 for idle mode (IdleQoffset2sn) 0 -5




UMTS900 F1 (continuous coverage). The coverage based

handover from F1 to F2 is not recommended.

N i hb ll ith th i fi d i t Neighbor cells with the same carrier are configured as intra-

frequency neighbor cells.

The F1 and F2 cells with different frequencies but the same coverage are q g

configured as inter-frequency blind handover cells (BlindHOFlag=TRUE).


are configured as one way inter frequency neighbor cells (Hot F2 Cell > Noare configured as one-way inter-frequency neighbor cells (Hot F2 Cell -> No

Hot F1 Cell).








carrier.





Carrier camping policy NOT Barred NOT Barredconfiguration when setting the service priority of the carriers.





HSDPA d ll ti d M l M lThe service bearer is not configured with priority.












setting the HSUPA cell.Code Number for E RGCH/E HICH 1 1






carriers in access state. Access Policy Setting F1 Carrier F2 Carrier


D li k CAC l ith L d i i L d i iDownlink CAC algorithm Loose admission Loose admission















Maximum HS DSCH user number 64 64


Page59


Reference configurations for the LDR policy of the F1 and

F2 carriersLDR Setting

F1/F2 Carrier

Uplink Downlink

Power resource triggering ON ONPower resource triggering ON ON








fInter-frequency load handover triggered by code resource congestion - ON






Page60

Low-Band Capacity Expansion (Three Frequencies)(Three Frequencies)


(recommended)

Two-way intra-frequency soft

handover

One-way inter-frequency hard

handover

Load DRD

Cell reselection



For the case in which UMTS2100 and UMTS900 differ greatly in terms of

it i d d th t d i h ld b d t dcoverage, it is recommended that random camping should be adopted

and the number of times for DRD should be reduced to lower the

probability of DRD failure.






recommended.












Page63


When users of the F2/F3 carrier move out of the hotspot, inter-

frequency handover from the F2/F3 cell to the non-hotspot F1 cell

is performed directly.

Wh f th h t t i t th h t tWhen users move from the non-hotspot area into the hotspot area,

intra-frequency handover is performed directly between the cells

of the F1 carrierof the F1 carrier.



Follow the baseline Networking Policy F1 Carrier F2 Carrier F3 Carrier

C i i li NOT B d NOT B d NOT B dconfiguration when

setting the service


Carrier camping policy NOT_Barred NOT_Barred NOT_Barred




HSDPA code allocation mode Manual Manual Manualpriority of the carriers.


not configured with




Code Adjust Switch for HSDPA ON ON ONg

priority.

Follow the baseline






configuration when






The number of HSDPA users can be balanced between two carriers in access state.carriers in access state.

Access Policy Setting F1 Carrier F2 Carrier F3 Carrier


Downlink CAC algorithm Loose admission Loose admission Loose admissiong








Load balance DRD switch for DCH OFF OFF OFF

Load balance DRD switch for HSDPA ON ON ON

Load balance DRD choice UserNumber. UserNumber. UserNumber.

Load balance DRD offset for HSDPA 10% 10% 10%

Dl load balance DRD power remain threshold for HSDPA 100% 100% 100%



EcNo threshold for direct retry -12 -12 -12

Page66




Uplink Downlink






LDR ti 3 Inter-RAT load handover of the CS LDR action 3 - domain



Inter-frequency load handover triggered by code ti - ONresource congestion ON







Reference configurations for the LDR policy of the F2/F3 carrier


Low-Band Capacity Expansion (Three Frequencies)(Three Frequencies)


Two-way intra-frequency soft

handoverhandover

One-way inter-frequency hard

handover

Load DRD

Cell reselection



Aptitudinal camping on F1

In case of capacity expansion through discontinuous coverage of UMTS2100, the signals covering the UMTS900 cell are slightly stronger than those covering the UMTS2100 cell. If a UE is prone to camp on the UMTS900 cell, when the UE is blind handed over to the UMTS2100 neighbor cell covered by weak signals during the DRD process at the RAB stage in connection state, DRD fails. Therefore, aptitudinal camping on UMTS2100 is recommended.



Support the handover from UMTS2100 F2/F3 (hotspot coverage) to UMTS900 F1 (continuous coverage). The coverage based handover from ( g ) gF1 to F2/F3 is not recommended. The coverage based handover between F2/F3 is not recommended.

Neighbor cells with the same carrier are configured as intra-frequency neighbor cellscells. The F2 and F3 cells with different frequencies but the same coverage are configured as the inter-frequency blind handover cells of the F1 cell (BlindHOFlag=TRUE).The F2 cell with a different frequency but the same coverage is configured as the inter-frequency blind handover cell of the F3 cell (BlindHOFlag=TRUE).The F3 cell with a different frequency but the same coverage is configured as the inter-frequency blind handover cell of the F2 cell (BlindHOFlag=TRUE)the inter-frequency blind handover cell of the F2 cell (BlindHOFlag=TRUE).The F2/F3 cell on the edge of the F2/F3 carrier and the non-hotspot F1 neighbor cell are configured as one-way inter-frequency neighbor cells (Hot F2/F3 Cell -> No Hot F1 Cell).



Page71

Solution 2: Aptitudinal Camping and Load Balancing (Mobility Policy)and Load Balancing (Mobility Policy)



directly.



carrier.



Follow the baseline Networking Policy F1 Carrier F2 Carrier F2 Carrier

Carrier camping policy NOT Barre NOT Barred NOT Barreconfiguration when

setting the service


Carrier camping policy _d NOT_Barred _

dService priority of R99 RT service 1 1 1


Service priority of HSPA service 1 1 1priority of the carriers.


not configured with

HSDPA code allocation mode Manual Manual ManualCode Number for HS-PDSCH 5 5 5Code Number for HS-SCCH 3 3 3

The Offset of HSPA Total Power[0.1dB] 0 0 0g

priority.

Follow the baseline

Code Adjust Switch for HSDPA ON ON ONDynamic Code Switch for NodeB ON ON ON

Dynamic CE for NodeB ON ON ONCode Number for E-AGCH 1 1 1

C d N b f E RGCH/E

configuration when








carriers in access state. Access Policy Setting F1 Carrier F2 Carrier F3 CarrierUplink CAC algorithm ENU admission ENU admission ENU admission

Downlink CAC algorithm Loose admission Loose admission Loose admissiongCE resource admission switch ON ON ON

Downlink code resource admission switch ON ON ONHSPA Uu load admission control ON ON ON

HSDPA GBR/PBR measurement switch ON ON ONDRD global function switch ON ON ON

HSPA DRD switch ON ON ON Service differential DRD algorithm OFF OFF OFFLoad balance DRD switch for DCH OFF OFF OFF

Load balance DRD switch for HSDPA ON ON ONLoad balance DRD choice UserNumber. UserNumber. UserNumber.

Load balance DRD offset for HSDPA 5% 5% 5%Dl load balance DRD power remain threshold

for HSDPA 100% 100% 100%



Maximum HS-DSCH user number 64 64 64EcNo threshold for direct retry -12 -12 -12

Page74




Uplink Downlink











Gold user load control switch ONIntegrate Priority Configured Reference ARP


Integrate Priority Configured Reference ARPIndicator of Carrier Type Priority DCH

Page75



carrier


Contents










Intra-Band Network

Load balancing between multiple carriers

UMTS2100 UMTS2100F 2

UMTS2100 UMTS2100 UMTS2100 UMTS2100F 1



UMTS2100

UMTS2100 UMTS2100 UMTS2100 UMTS2100F 1


Networking Policy of Intra-Band and Multi-Carrier Capacity Expansion (Two Frequencies)Carrier Capacity Expansion (Two Frequencies)


(recommended)



PUC algorithm control

The PUC algorithm is used to ensure that users equally camp

on two frequencies. After a user moves into a dual-carrier

hotspot area, the user can camp on either carrier. With the

PUC algorithm, the system can update the cell

selection/reselection parameters of the two carriers accordingselection/reselection parameters of the two carriers according

to the load of the two carriers, and control the camping

behaviors of the users in idle state in the hotspot area. p



Support the handover from F2 (hotspot coverage) to F1

(continuous coverage).

Neighbor cells with the same carrier are configured as intra-


The F1 and F2 cells with different frequencies but the same coverage

are configured as inter frequency blind handover cellsare configured as inter-frequency blind handover cells

(BlindHOFlag=TRUE).

The F2 cell on the edge of the F2 carrier and the non-hotspot F1 g p

neighbor cell are configured as one-way inter-frequency neighbor cells

(Hot F2 Cell -> No Hot F1 Cell).



Page81





frequency handover is performed directly between the cells of the F1 carrier.frequency handover is performed directly between the cells of the F1 carrier.



Follow the baseline configuration when setting the service priority of the carriers. The service bearer is not configured with priority.of the carriers. The service bearer is not configured with priority. Follow the baseline configuration when setting the HSUPA cell.











D namic Code S itch for NodeB ON ONDynamic Code Switch for NodeB ON ON







Page83


Enable the DCCC algorithm switch for R99 and the dynamic allocation algorithm for the initial access rate at the network-wideallocation algorithm for the initial access rate at the network wide level.



















Page84


Enable the uplink and d li k R99 BE idownlink R99 BE service and dynamic CE switches. (If the dynamic CE switch is ( yunavailable, the DCCC algorithm for HSUPA needs t b bl d Th d ito be enabled. The dynamic CE switch and the DCCC algorithm for HSUPA gcannot be enabled at the same time.)


Networking Policy of Intra-Band and Multi-Carrier Capacity Expansion (Two Frequencies)Carrier Capacity Expansion (Two Frequencies)

Solution 2: aptitudinal camping and service differentiation


Solution 2: Aptitudinal Camping and Service Differentiation (Camping Policy)

Method 1: cell reselection parameters (recommended) with F2

Service Differentiation (Camping Policy)

unbarred

Settings for Idle State Control F1 Carrier F2 Carrier

Inter-freq cell reselection threshold for idle mode (IdleSintersearch) 0 10

Central and neighbor cell load level offset 1 for idle mode (IdleQoffset1sn)

0(F1->F2NCell)

-5(F2->F1NCell)

Method 2: aptitudinal camping on F1 and barring of user access on


0(F1->F2NCell)

-5(F2->F1NCell)

F2 Idle State Control Policy F1 Carrier F2 Carrier

Access restriction Unbarred Barred


Solution 2: Aptitudinal Camping and Service Differentiation (Mobility Policy)Differentiation (Mobility Policy)

Support the handover from F2 (hotspot coverage) to F1

(continuous coverage).

Neighbor cells with the same carrier are configured as intra-


The F1 and F2 cells with different frequencies but the same coverage

are configured as inter frequency blind handover cellsare configured as inter-frequency blind handover cells

(BlindHOFlag=TRUE).

The F2 cell on the edge of the F2 carrier and the non-hotspot F1 g p

neighbor cell are configured as one-way inter-frequency neighbor cells

(Hot F2 Cell -> No Hot F1 Cell).



Page88







Solution 2: Aptitudinal Camping and Service Differentiation (Service Bearer Policy)Differentiation (Service Bearer Policy)

F1 carrier configuration: Carrier Configuration F1 Carrier F2 Carrier


ensure that F1 first

bears the R99 service.





F2 carrier configuration:

ensure that F2 first





bears the HSPA service.y

HSUPA DCCC OFF OFF

HSUPA Dynamic CE Scheduling ON ON

HSUPA CE Consume Type GBR GBR






Solution 2: Aptitudinal Camping and Service Differentiation (Access Policy)and Service Differentiation (Access Policy)

Enable the DCCC algorithm switch for R99 and the dynamic allocation


DCCC algorithm switch ONfor R99 and the dynamic allocation algorithm for the initial access rate at the network-wide level. In addition, enable the service

Dynamic allocation switch for the initial access rate ON

RRC DRD algorithm switch ON

DRD algorithm switch for single service ON

differential DRD algorithm switch at the RNC and cell levels.

In this way, when the load of the

DRD switch for combined service OFF

Uplink CAC algorithm ENUadmission

ENUadmission


Downlink CAC algorithm Loose Loose y,two carriers is not heavy, if a user originates the HSPA service, the service is first set up on the F2

Downlink CAC algorithm admission admissionDownlink code resource admission

switch ON ON


HSDPA GBR/PBR measurementcarrier. If the user originates the R99 service, the service is directly set up on the F1 carrier.


Service differential DRD algorithm ON -

Load balance DRD algorithm for HSPA OFF -

Load balance DRD algorithm for R99 OFF -


Load balance DRD algorithm for R99 OFF -


Page91

Solution 2: Aptitudinal Camping and Service Differentiation (Connection State Policy)Differentiation (Connection State Policy)

Enable the uplink and downlink R99 BE service and dynamic CE switches. (If the d i CE it h i il bl th DCCCdynamic CE switch is unavailable, the DCCC algorithm for HSUPA needs to be enabled. The dynamic CE switch and the DCCC algorithm for HSUPA cannot be enabled at the same time.)

Enable the LDR algorithm based on the CE resources and the uplink power resources, and the LDR algorithm based on the downlinkand the LDR algorithm based on the downlink power resources and code resources.

Set UL HO load space threshold and DL HO load space threshold to 20% to prevent the

i ff t d i i t f l dping-pong effect during inter-frequency load handover.

Enable the inter-frequency load handover triggered by code resource congestion.


gg y g

Reference configurations for the LDR policy of the F1 and F2 carriers.

Page92

Networking Policy of Intra-Band and Multi-Carrier Capacity Expansion (Three p y p (Frequencies)

Solution 1: random camping and load balancing (recommended)


Solution 1: Random Camping and Load Balancing (Camping Polic )Balancing (Camping Policy)

PUC algorithm control

The PUC algorithm is used to ensure that users equally camp on two

frequencies (F1/F2). Users are not allowed to camp on F3.



Support the handover from F3 (hotspot coverage) to F1/F2 (continuous coverage).g )

Neighbor cells with the same carrier are configured as intra-frequency neighbor cells. The F2 and F3 cells with different frequencies but the same coverage are configured as the inter-frequency blind handover cells of the F1 cellconfigured as the inter-frequency blind handover cells of the F1 cell (BlindHOFlag=TRUE).The F1 and F3 cells with different frequencies but the same coverage are configured as the inter-frequency blind handover cells of the F2 cell (BlindHOFlag=TRUE)(BlindHOFlag=TRUE).The F1 and F2 cells with different frequencies but the same coverage are configured as the inter-frequency blind handover cells of the F3 cell (BlindHOFlag=TRUE).The F3 cell on the edge of the F3 carrier and the non-hotspot F1/F2 neighbor cell are configured as one-way inter-frequency neighbor cells (Hot F3 Cell -> No Hot F1/F2 Cell).Configure 2G inter-RAT neighbor cells for the three cells


g g

Page95








Follow the baseline

configuration when

setting the service

priority of the carriers.

The service bearer is not

fi d i h i iconfigured with priority.

Follow the baseline

configuration when



Solution 1: Random Camping and Load Balancing (Access Polic )

(1) Load admission controlEnable the algorithm switches for CE resources admission, uplink equivalent user number

Balancing (Access Policy)

admission, and downlink power admission (loose admission) of two carrier cells. Enable the HSPA power admission algorithm. Follow the baseline configuration when setting the uplink and downlink service admission thresholds for the cell.

(2) Access rate control and DRD policyEnable the DCCC algorithm for R99 and the dynamic allocation algorithm for the initial access rate at the network-wide level. Enable the DRD global function switchEnable the DRD global function switch for RRC and single service, and disable the DRD switch for combined service. For the F1 and F2 carriers, enable the load balance DRD algorithm switch for the HSPA service, disable the load balancing switch for the R99 service, and set the balancing object to user


g jnumber.

Page98


For the users who originate the HSPA service on the F1 or F2 carriers in the

Access Policy Setting

Dynamic allocation switch for the initial

F1 Carrier

DCCC algorithm switch

F2 Carrier F3 Carrier

hotspot area, the system hands over the new HSPA users through DRD to the cell with the lightest load among the

yaccess rate

RRC DRD algorithm switch

DRD algorithm switch for single service

DRD algorithm switch for combined service


three carriers only when the remaining HSPA user number of the local cell is smaller than 62 (64 x 97%)

Downlink CAC algorithm

CE resource admission switch

Downlink code resource admission switch

HSPA air interface load admission control

HSDPA GBR/PBR measurement switch

Loose admission Loose admission Loose admission

When the HSPA user number in the area jointly covered by the three carriers exceeds 6 (the DRD load offset is set to 1%; therefore 64 x 1% = 6 4) the load

DRD global function switch

HSPA DRD switch

Service differential DRD algorithm

Load balance DRD switch for DCH

Load balance DRD switch for HSDPA1%; therefore, 64 x 1% = 6.4), the load balance DRD algorithm can ensure that the difference between the HSPA user number of the three carriers does not

Load balance DRD choice

Load balance DRD offset for HSDPA

Dl load balance DRD power remain threshold for HSDPA

Maximum HS-DSCH user number


exceed 1Maximum HS DSCH user number

EcNo quality threshold for direct retry

Page99


Enable the uplink and downlink R99 BE service and dynamic CEBE service and dynamic CE switches. (If the dynamic CE switch is unavailable, the DCCC algorithm for HSUPA needs to be enabled. The dynamic CE switch and the DCCC algorithm for HSUPA cannot be enabled at the same time.)

Reference configurations for the LDR policy of the F1 and F2 carriers


Networking Policy of Intra-Band and Multi-Carrier Capacity Expansion (Three p y p (Frequencies)

Solution 2: aptitudinal camping and service differentiation

Two-way intra-frequency soft handover

O f

Cell reselection

One-way inter-frequency hard handover

Service DRD

Load DRD


Solution 2: Aptitudinal Camping and Service Differentiation (Camping Policy)

Method 1: cell reselection parameters (recommended) with F2

Differentiation (Camping Policy)

unbarred Settings for Idle State Control F1 Carrier F2 Carrier F3 Carrier

Inter-freq cell reselection threshold for idle mode (IdleSintersearch) 0 10 10

Central and neighbor cell load level offset 0 -5 -51 for idle mode (IdleQoffset1sn) (F1->F2NCell) (F2->F1NCell) (F3->F1NCell)


0(F1->F2NCell)

-5(F2->F1NCell)

-5(F3->F1NCell)

Method 2: aptitudinal camping on F1 and barring of user access on Idle State Control Policy F1 Carrier F2 Carrier F3 Carrier

F2Access restriction Unbarred Barred Barred



Support the handover from F3 (hotspot coverage) to F1/F2 (continuous coverage). The coverage based handover between F1 and F2 is not recommended. g


The F2 and F3 cells with different frequencies but the same coverage are configured as the inter-frequency blind handover cells of the F1 cell (BlindHOFlag=TRUE).

The F1 and F3 cells with different frequencies but the same coverage are configured as the inter-frequency blind handover cells of the F2 cell (BlindHOFlag=TRUE).

The F1 and F2 cells with different frequencies but the same coverage are configured as the inter frequency blind handover cells of the F3 cell (BlindHOFlag=TRUE)the inter-frequency blind handover cells of the F3 cell (BlindHOFlag=TRUE).

The F3 cell on the edge of the F3 carrier and the non-hotspot F1/F2 neighbor cell are configured as one-way inter-frequency neighbor cells (Hot F3 Cell -> No Hot F1/F2 Cell). In addition, ensure that the set priority of handover from the F3 cell to the F2 neighbor cell is higher than that from the F3 cell to the F1 neighbor cell. In this way, users are first handed over to the F2 neighbor cell.

Configure 2G inter-RAT neighbor cells for the three cells


Solution 2: Aptitudinal Camping and Service Differentiation (Mobility Policy)

When a user moves from the F3 carrier in the hotspot area to a non-

h t t th th t i t f i hb ll

Differentiation (Mobility Policy)

hotspot area, the user measures the two inter-frequency neighbor cells

(F1 and F2) and then is first handed over to the F2 carrier. The user is

handed over from F3 to F1 only when the quality of the F2 carrier is poor.

When the user moves from the non-hotspot area to the hotspot area, the

intra-frequency handover within the F1 or F2 carrier is performed.


Solution 2: Aptitudinal Camping and Service Differentiation (Service Bearer Policy)Differentiation (Service Bearer Policy)

F1 carrier configuration: ensure that F1 first bears the R99

Carrier ConfigurationF1

Carrier F2 CarrierF3

Carrier

SPG ID 1 2 2that F1 first bears the R99 service.

F2/F3 carrier configuration: ensure that F2/F3 first bears

SPG ID 1 2 2




HSDPA code allocation mode Manual Manual Manualensure that F2/F3 first bears the HSPA service.

Enable the dynamic CE algorithm switch (disable the





algorithm switch (disable the HSUPA DCCC algorithm). Follow the baseline configuration when setting the



HSUPA DCCC OFF OFF OFF

HSUPA Dynamic CE Scheduling ON ON ON

HSUPA CE Consume Type GBR GBR GBRconfiguration when setting the HSUPA cell.

HSUPA CE Consume Type GBR GBR GBR




Target Non-serving E-DCH to Total


g gE-DCH Power ratio[%] 0 0 0

Page105


Load admission control

Enable the algorithm switches for CE resources admission, uplink equivalent user number g , p qadmission, and downlink power admission (loose admission) of two carrier cells.

Enable the HSPA power admission algorithm

Follow the baseline configuration when setting the uplink and downlink service admission thresholds for the cell

Access rate control and DRD policy

Enable the DCCC algorithm for R99 and the dynamic allocation algorithm for the initial t t th t k id l laccess rate at the network-wide level

Enable the DRD global function switch for RRC and single service, and disable the DRD switch for combined service.

For the F1 and F2 carriers enable the load balance DRD algorithm switch for the HSPAFor the F1 and F2 carriers, enable the load balance DRD algorithm switch for the HSPA service, disable the load balancing switch for the R99 service, and set the balancing object to user number



When the baseline

configuration for other

parameters is retained, the F1

carrier in the hotspot area cancarrier in the hotspot area can

first bear the R99 service, and

the F2 and F3 carriers can first

bear the HSPA service so that

the number of HSPA users is

balanced between the F2 and

F3 carriers


Solution 2: Aptitudinal Camping and Service Differentiation (Connection State Policy)Differentiation (Connection State Policy)

Enable the uplink and downlink R99 BE service and dynamic CE switches. (If the dynamic CE switch is unavailable, the DCCC algorithm for HSUPA needs to be enabled. The dynamic CE switch and the DCCC algorithm for HSUPA cannot be enabled at the same time)

Enable the LDR algorithm based on the CE resources and the uplink power resources, and the LDR algorithm based on theand the LDR algorithm based on the downlink power resources and code resources

Set UL HO load space threshold and DL HO load space threshold to 20% to prevent the ping-pong effect during inter-frequency load handover

Enable the inter-frequency load handover


Enable the inter frequency load handover triggered by code resource congestion

Page108

Contents



3. Description of the Overall Strategyp gy


Description of the Overall Strategyp gy

Recommended camping policy for multiple carriers in

different frequency bands: random camping

Camping policy for multiple carriers in the same frequency

band:

For the scenario where both carriers implement continuous

coverage: The random camping policy is recommended.

For the scenario where either carrier implements discontinuous

coverage: The aptitudinal camping policy is recommended.


Summaryy

Multi-band and multi-carrier capacity expansion is based on

the current networking scenarios. The purpose of capacity

expansion is to compensate for blind areas or increase the

capacity of hotspot areas, and optimize the user camping

policy, mobility management, service bearer, access policy,

d i b d hand connection state management based on the parameter

configuration policy for algorithms such as the load control

l ithalgorithm.


Documents

WCDMA Multi-Band and Multi-Carrier Solution