Ran 2922

WCDMA 18 Feature Descriptions and Instructions

Radio resource management features

Procedure 1

Start the OMS Element Manager.

2

Go to the IUO object. Object path: Topology Topology !  ! Root Root !  ! RNC RNC !  ! IUOs IUOs !  ! IUO-x

3

Set the value of the ReEstDuringCSCallSetupEnabled  to Disabled Disabled.. ReEstDuringCSCallSetupEnabled to Sub-steps a) Rig Right ht-c -clic lick k the the ob objec jectt  ! Edit parameters b) In the Admission Control tab, Control tab, set the value of the  parameter to Disabled Disabled.. ReEstDuringCSCallSetupEnabled parameter ReEstDuringCSCallSetupEnabled c) Click Apply Apply..

Result Expected outcome The ReEstDuringCSCallSetupEnabled  parameter is successfully disabled, and ReEstDuringCSCallSetupEnabled parameter the RAN3376: Accelerated Voice Setup feature Setup  feature is deactivated.

3.2 RAN2922: Control Channel Interference Cancellation Benefits, functionality, system impact, reference data, instructions of the feature The RAN2922: Control Channel Interference Cancellation  feature introduces interference cancellation for Control channels such as DPCCH and HS-DPCCH.

3.2.1

RAN2922 benefits Benefits of RAN2922: Control Channel Interference Cancellation feature

The benefit of the RAN2922: Control Channel Interference Cancellation  feature can be measured by the KPIs related to HSUPA cell and user throughput. Uplink throughput gains are achieved with the available baseband resources. The feature complements the existing RAN1308: HSUPA Interference Cancellation and Cancellation  and RAN2250: Enhanced HSUPA IC  and  and the overall gain is higher with all 3 features activated as compared to individual feature gains.

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Radio resource management features

3.2.2

WCDMA 18 Feature Descriptions and Instructions

RAN2922 functional description The RAN2922: Control Channel Interference Cancellation  feature introduces interference cancellation for UL Control channels namely DPCCH and HS-DPCCH. With HSUPA Interference Cancellation features RAN1308 and RAN2250 interference caused by 2ms TTI HSUPA UEs are cancelled. Essentially, interference caused by E-DPDCH, EDPCCH and DPCCH of 2ms UEs is cancelled. Control Channel Interference Cancellation (CCIC) feature enhances this further by cancelling the interference caused by DPCCH and HS-DPCCH of 2ms, 10ms HSUPA UEs as well as Rel99 UEs. With this all UEs receive DPDCH/E-DPDCH on the cleaned residual stream.

3.2.3

RAN2922 system impact RAN2922: Control Channel Interference Cancellation interdependencies between features and impact on system performance and capacity  Interdependencies between features The RAN1308: HSUPA Interference Cancellation feature must be enabled before activating the RAN2922: Control Channel Interference Cancellation  feature. Impact on interfaces There are no impact on interfaces. Impact on network management tools The RAN2922: Control Channel Interference Cancellation  feature has no impact on network management tools. Impact on system performance and capacity The RAN2922: Control Channel Interference Cancellation  feature increases UL cell capacity and UL throughput due to reduced UL interference.

3.2.4

RAN2922 reference data RAN2922: Control Channel Interference Cancellation requirements, measurements and  counters, parameters, and sales information Requirements Table 7 

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RAN2922 hardware and software requirements

RAS

IPA-RNC

mcRNC

AirScale RNC

WCDMA 18

Support not required

Support not required

OMS

NetAct

MSC

SGSN

MGW

UE

Support not required

NetAct 17.2 1708 + fast pass SP460

Support not required

Support not required

Support not required

Support not required

Support not required

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Flexi Multiradio BTS

Flexi Multiradio 10 BTS

Not supported WBTS18

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WCDMA 18 Feature Descriptions and Instructions

Table 7 

Radio resource management features

RAN2922 hardware and software requirements (Cont.)

OMS

NetAct

MSC

SGSN

MGW

UE

NetAct 17.8 SP1801

Alarms There are no alarms related to the RAN2922: Control Channel Interference Cancellation feature. Commands There are no commands related to the RAN2922: Control Channel Interference Cancellation feature. Measurements and counters There are no counters related to the RAN2922: Control Channel Interference Cancellation feature. Key performance indicators If cell traffic is Voice/HSDPA (UL DCH) dominated with small to medium number of EDCH users (HSUPA), with CCIC the UL throughput of EDCH users is increased. This gain can be seen on related KPIs such as HSUPA MAC-es data volume at RNC [kbit] and active HSUPA cell throughput. The following legacy KPIs related to cell throughput and user throughput cover the benefit of the feature: Table 8 

Key performance indicators KPI ID

KPI name

RNC_931c

HSUPA MAC-es data volume at RNC

RNC_1883d

Active HSUPA cell throughput

RNC_5460a

Average HSUPA user throughput

RNC_2050b

Active HSUPA 2ms TTI throughput

RNC_2051b

Active HSUPA 10ms TTI throughput

Parameters Table 9

New parameter introduced by RAN2922 Full name

Control Channel Interference Cancellation enabled

Abbreviated name

cchicEnabled

Managed object

Parent structure

MRBTS/B TSSCW

Sales information

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Radio resource management features

Table 10 

WCDMA 18 Feature Descriptions and Instructions

RAN2922 sales information

Pricing type

 Application software (ASW)

3.2.5

License control

BTS License key

Activated by default

No

Activating RAN2922 Instructions to activate the RAN2922: Control Channel Interference Cancellation using  the BTS Site Manager. Before you start The license of features, RAN1308 and RAN2922 should be ON. Install the feature license: • • •

License name: Control Channel Interference Cancellation Feature code of the license: 0000030504 License type: On/off license

This feature activation is controlled through BTS long term On/Off license. Preconfiguration: Ensure that the RAN1308: HSUPA Interference Cancellation feature is enabled before activating of the RAN2922 Control Channel Interference Cancellation  feature: •

RAN1308: HSUPA Interference Cancellation

The benefits can be further increased by utilizing the following features: • • •

RAN3040: IRC Receiver  RAN2250: Enhanced HSUPA IC RAN3044: Uplink CoMP

Procedure

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1

Open the BTS Site Manager.

2

Go to the Commissioning interface.

3

Configure the PIC pool for Local Cell group, which belong to the Flexi Multiradio 10 BTS.

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WCDMA 18 Feature Descriptions and Instructions

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Radio resource management features

Check the Control channels interference cancellation in use  field to enable the RAN2922: Control Channel Interference Cancellation  feature at the BTS. Figure 1

RAN2922 activation window

Expected outcome: On setting the control channels interference cancellation in use field then the cchicEnabled parameter is activated on the PIC cells in the PIC pool within Flexi Multiradio 10 BTS. Unexpected outcome: On modification of the cchicEnabled parameter is unsuccessful then the Control Channel Interference Cancellation feature is disabled.

g 3.2.6

Note: The CCIC cannot be activated in the PIC pool within FSMr2.

Verifying RAN2922 Instructions to verify the RAN2922: Control Channel Interference Cancellation feature.

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Radio resource management features

WCDMA 18 Feature Descriptions and Instructions

Procedure 1

Compare the uplink throughput related KPIs before and after the feature activation. Expected outcome Uplink cell throughput is higher when RAN2922 Control Channel Interference Cancellation is activated. The achieved gains are dependent on the traffic profile. For further information, see section Key performance indicators.

3.2.7

Deactivating RAN2922 Instructions to deactivate the RAN2922: Control Channel Interference Cancellation feature using the BTS Site Manager.

Procedure

36

1

Open the BTS Site Manager.

2

Go to the Commissioning interface.

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WCDMA 18 Feature Descriptions and Instructions

3

Uncheck the Control channels interference cancellation in use  field to disable the RAN2922: Control Channel Interference Cancellation  feature at the BTS. Figure 2 

4

Radio resource management features

RAN2922 deactivation window

If there is no PIC pool configured in the Flexi Multiradio 10 BTS then cchicEnabled is not allowed to set from BTS SM. Expected Outcome On deactivation of the parameters cchicEnabled, the CCIC is deactivated on the PIC cells in the configured PIC pool within Flexi Multiradio 10 BTS which results in deactivation of the RAN2922 Control Channel Interference Cancellation  feature. Unexpected outcome The RAN2922 functionality remains enabled.

3.3 RAN3388: Dynamic Voice Call Prioritization Benefits, functionality, system impact, reference data, instructions of the feature

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