7/25/2019 Abis congestion

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Post What is EDAP Congestion? How to remove it?When the Abis interface uses the TDM connection mode, if the PDCH coding schemeis adjusted, the idle Abis timeslot application or release may be initiated to support the adjustment of the PDCH coding scheme. Each time the PDCH requests anAbis timeslot for the adjustment of the PDCH coding scheme, the counter is incremented by one.

* Maximum no of Idle TS we can use based on no. of TRXs is as belowTRX=8 >> Max Idle TS=40TRX=9 >> Max Idle TS=32TRX=10 >> Max Idle TS=24TRX=7 >> Max Idle TS=48

Checks for Removal of Abis Congestion:-

1. Find out the sectors with EDAP Failure (Unsuccessful Application Attempts ofAbis Timeslot Because of no Idle TS/ Application Attempts of Abis TS) greater than 30% and Application Attempts of Abis TS is above 100 (sites coming in Five continue Working Days).2. Check for IDLE TS configuration. Add maximum IDLE TS in existing E1.3. Mapping must be proper of idle TS.4. Check Data download (MB) of a site before adding second E1, Download of DATABBH should be greater than 100Mb.5. Additional E1 to be added.