Friday 4 December 2015

Power Control activation for Electricity Saving in Huawei GSM

Power Control is needed to activate in GSM to save Battery consumption of BTS. What I would like to share is about Electricity saving feature implementation in Huawei GSM. This feature is purposed to save battery consume to reduce Electricity bill especially during low traffic. The goal of this feature is to shut down TRX during low traffic and turn on during traffic going to high.The feature is named TRX Power Amplifier intelligent shutdown

Description of TRX Power Amplifier intelligent shutdown
The TRX Power Amplifier Intelligent Shutdown function can be enabled during a specific period. After this function is enabled, idle TRXs can be shut down to reduce power consumption when estimated traffic load is light, and disabled TRXs can be switched on so that they are available for use when estimated traffic load is heavy.

When the BCCH TRX participates in baseband FH, the cell TRX cannot be shut down. Thus, the TRX power amplifier intelligent shutdown can't be used.
Before configuring Allow Shutdown of TRX Power Amplifier on the TRX, ensure the TRX meets the following conditions:

 >The TRX is not on the BCCH.
 >The Static PDCH is not available on the TRX.
At least two QTRUs or GRFUs need to be configured to support this feature.

Figure description of intelligent shutdown TRX Power Amplifier :
Power Control activation for Electricity Saving in Huawei GSM

To activate this feature we need to run script in BSC, Cell and TRX Level. Before run the script make sure to reconfigure/dimension Static PDCH on TRX non BCCH because script on TRX level will be failed if there are static PDCH exist on the channel. So you need to shift static PDCH to TRX BCCH or just to change CHTYPE on TRX non BCCH from static PDCH to TCHFR.After that you can run main script to activate feature of Intelligent shutdown TRX. Below are script need to be run if you want to activate intelligent shutdown TRX Power Amplifier in Huawei GSM:


Activation Script :
BSC Level:
SET BSCDSTPA:BSCDYNSWITCHTRXPAALLOW=YES,STARTTIMETACLOSETRXPA=00&00,ENDTIMETACLOSETRXPA=23&59,PROTECTTIMETRXPOWERON=300,RSVIDLECHANNUM=2;
Cell Level:
SET GCELLBASICPARA:IDTYPE=BYID,CELLID=XXXX,DYNOPENTRXPOWER=YES;
TRX Level(non BCCH)
SET GTRXDEV: TRXID=XXXX, CPS=YES;


Deactivation Script :
BSC Level:
SET BSCDSTPA:BSCDYNSWITCHTRXPAALLOW=NO;
Cell Level:
SET GCELLBASICPARA:IDTYPE=BYID,CELLID=XXXX,DYNOPENTRXPOWER=NO;
TRX Level:
SET GTRXDEV: TRXID=XXXX, CPS=NO;

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