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GSM, maps, TRX, transmission, google,
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Faulty TRX Identification
Bottleneck
• There is no particular Alarm for Faulty TRX• Identification of faulty TRX in E// BSC is
difficult as we cannot get TRX level stats therefore we have to identify it by observing degradation in multiple KPIs
• For the confirmation we have to block suspected TRX and monitor KPIs through RPMO
Affected KPIs
• Degraded TCH assignment success rate with out congestion
• Incoming HOSR degraded• SDCCH drop rate increased• Low SS Uplink drops increased• Bad Quality DL drops increased• In case of BCCH TRX, RACH will decrease while
availability will be same
Examples of Affected KPIs
Examples of Affected KPIs
Examples of Affected KPIs
Examples of Affected KPIs
Examples of Affected KPIs
Monitoring KPIs through RPMO
Monitoring KPIs through RPMO
Monitoring KPIs through RPMO
Monitoring KPIs through RPMO
Monitoring KPIs through RPMO
Monitoring KPIs through RPMO
THANK YOU