configuring hsupa power control
DESCRIPTION
Configuring HSUPA Power ControlTRANSCRIPT
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Configuring HSUPA Power Control
This section describes how to activate, verify, and deactivate the optional feature WRFD-
01061203 HSUPA Power Control.
Prerequisites
Dependencies on Hardware
o This feature does not depend on the hardware.
Dependencies on Other Features
o The features WRFD-010612 HSUPA Introduction Package and WRFD-020504
Inner Loop Power Control must be configured before this feature is activated.
License
o The license controlling this feature has been activated.
Context
This feature increases the system power efficiency, reduces the uplink and downlink
interference, and improves the system capacity by controlling the power on HSUPA physical
channels.
Procedure
Activation Procedure
1. Run the NodeB MML command SET MACEPARA. In this step, set E-AGCH
HPC Parameters, E-RGCH HPC Parameters for Service Radio Links Set,
and E-HICH HPC Parameters for Service Radio Links Set to YES.
2. Run the NodeB MML command SET MACEPARA. In this step, set E-AGCH
HPC Mode, E-RGCH HPC Mode for Service Radio Links Set, and E-HICH
HPC Mode for Service Radio Links Set to FOLLOW_TPC.
3. Run the NodeB MML command SET MACEPARA. In this step, set E-AGCH
Power Offset(0.25dB), E-RGCH Power Offset for Service Radio Links
Set(0.25dB), E-HICH Power Offset for Service Radio Links Set(0.25dB), and
E-HICH Power Offset for Single Radio Link(0.25dB) to appropriate values
according to the network plan.
4. Run the BSC6900 MML command MOD UTYPRABHSUPAPC to modify
power control parameters related to HSUPA services. In this step, set E-RGCH
2-Index-Step Threshold to 9 and E-RGCH 3-Index-Step Threshold to 12.
5. Run the BSC6900 MML command MOD UTYPRABOLPC. In this step, change
the number of target retransmissions for large and small retransmissions related to
HSUPA services according to the network plan.
Verification Procedure
1. On the BSC6900 LMT, open the Monitor page. Then, double-click Connection
Performance Monitoring under UMTS Monitoring. In the displayed dialog
box, select OLPC and specify the IMSI.
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2. Use an HSUPA-capable UE to set up a PS service over the enhanced DCH (E-
DCH).
3. Move the UE between the cell center and the cell edge.
4. View the monitor items related to the number of E-DCH retransmissions in the
OLPC area. The values of the monitor items change with UE movement.
5. View the power change on each HSUPA channel.
If static power control is used, the channel power remains unchanged.
If dynamic power control is used:
When the UE is moving away from the antenna, the transmit
power of the E-AGCH increases.
When the UE is moving towards the antenna, the transmit power of
the E-AGCH decreases.
Deactivation Procedure
1. This feature does not need to be deactivated.
Example
//Activating HSUPA Power Control
//Setting the power control mode
SET MACEPARA: LOCELL=111, EAGCHPCPARA=YES, SERGCHPCPARA=YES,
SEHICHPCPARA=YES;
SET MACEPARA: LOCELL=111, EAGCHPCMOD=FOLLOW_TPC, SERGCHPCMOD=FOLLOW_TPC,
SEHICHPCMOD=FOLLOW_TPC;
SET MACEPARA: LOCELL=111, EAGCHPWROFFSET=142, SERGCHPWROFFSET=100,
SEHICHPWROFFSET=96, SRLEHICHPWROFFSET=88;
//Modifying power control parameters related to HSUPA services
MOD UTYPRABHSUPAPC: RabIndex=48, SubflowIndex=0, TrchType=TRCH_EDCH_2MS,
Ul16QamInd=FALSE, UlL2EnhanceInd=FALSE, EdPwrInterpolationInd=FALSE,
ERgch2IndStpThs=9, ERgch3IndStpThs=12, UlEcBoostingInd=FALSE;
//Changing the number of target retransmissions for large and small
retransmissions related to HSUPA services
MOD UTYPRABOLPC: RabIndex=48, SubflowIndex=0, TrchType=TRCH_EDCH_2MS,
DelayClass=1, EdchTargetLittleRetransNum=12, EdchTargetLargeRetransNum=20;
Parent topic: Configuring RAN Features
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