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2G GBFD-119504 PS Power Control features Trial Proposal

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Trial Scope Carry out this feature trial on Cluster VM327(24cells) in TEBH2 at 10

Feb13.

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Function Description This feature enables the BSC to adjust the transmit power of the BTS

according to the link quality of the Um interface. In this way, the desirable

link quality can be ensured without requiring the maximum power on the

PDCH. The reduced transmit power of the BTS helps decrease the

interference in the network and lower the power consumption of the BTS.

This feature lowers the BTS transmit power without compromising the link

quality. In this way, the network interference and power consumption can be

reduced, while the system capacity can be increased.

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Parameters Instruction_1Parameter Command Current

ValueProposed

Value Comment

SUPPSDLPC SET GCELLPSPWPARA NO YES Whether to support downlink EGPRS closed-loop power control.

PCMEASCHAN SET GCELLPSPWPARA PDCH BCCHChannel used for the measured receiving power. It is used to set the measured receiving power level of the channel and control the power of the uplink.

MCSSTATTHR SET GCELLPSPWPARA None 10

Threshold for the times of coding scheme adaptation (measurement period in which the stability of a code scheme can be determined). That is, the coding scheme stability can be determined only when the times of coding scheme adaptation is equal to this parameter.

MCSSTABTHR SET GCELLPSPWPARA None 8

Threshold for the times of using current coding scheme in a measurement period. This parameter is used to determine whether the coding scheme is stable. When the number of using the current coding scheme in a measurement period is equal to this parameter, the coding scheme is stable.

DLPCSTARTTHR SET GCELLPSPWPARA None MCS9

Lowest coding scheme (with 8PSK used) to start downlink power control. If the current coding scheme is equal to or higher than this parameter, downlink power control can be started. Downlink power control is not required when EGPRS GMSK is applied.

DLPCINITPR SET GCELLPSPWPARA None DB0Initial attenuation value of the transmit power for other channel relative to the maximum BCCH transmit power for PS downlink power control.

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Parameters Instruction_2Parameter Command Current

ValueProposed

Value Comment

TGTCIRPOS SET GCELLPSPWPARA None 3

Position corresponding to the target CIR in the value range for the specified coding scheme, that is, the delta between the target CIR and the minimum value in the value range.

TGTCIROFFSET SET GCELLPSPWPARA None 2Maximum offset of the target CIR. This parameter, together with target CIR, is used to determine the value range of the target CIR.

MAXPCSTEP SET GCELLPSPWPARA None 1 Maximum step size of power control

PSPCPRES SET GCELLPSPWPARA None 0.6dB This parameter indicates the minimum granularity of BTS output power during PS downlink power control.

DummyPRGran SET GCELLPSPWPARA None 15

Set the power reduce granularity for the Dummy control blocks with reserved Uplink State Flag (USF). When the parameter is set to 0, power control is not performed on the Dummy control blocks with reserved USF.

USFDummyPCFactor SET GCELLPSPWPARA None 3

Set the power reduce granularity for the Dummy control blocks with valid USF. When the parameter is set to 0, power control is not performed on the Dummy control blocks with valid USF.

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Performance Anticipating & Indicator General KPI is the key needed to closely monitor at. We will pay more attention to CS quality(HQI) and PS data

throughput, it may improve slightly. These two counter need to be enabled for monitoring the feature

Counter ID Description

R9217 Sum of Power Control Percentages of Untransmitted Packet Downlink Dummy Control Blocks over the PDCH with DTX Enabled

R9218 Sum of Power Control Percentages of Transmitted Downlink EGPRS Data Blocks

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Trial Schedule

Date Task1/02/2013 Model Test10/02/2013 Enable GBFD-119504 PS Power Control11/02/2013 Day 1 monitor report18/02/2013 Day 7 report

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Version ControlVersion Comment Date Author

V1.0 Initial Version 30Jan13 Jeffrey ZhangV1.1 Change with new template 01Feb13 Jeffrey Zhang

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Copyright©2011 Huawei Technologies Co., Ltd. All Rights Reserved.The information in this document may contain predictive statements including, without limitation, statements regarding the future financial and operating results, future product portfolio, new technology, etc. There are a number of factors that could cause actual results and developments to differ materially from those expressed or implied in the predictive statements. Therefore, such information is provided for reference purpose only and constitutes neither an offer nor an acceptance. Huawei may change the information at any time without notice.