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Reply To: improve TBF drop rate

#47355
HasnatBD
Guest

Hey,
the cause of this can be several but you can the below steps to confirm.
1. Check frequency in BBH and the retransmission rate in those cells. if high retransmission –> for sure there is problem on Frequency
2. Try use most BCCH TRX TS for PDCH.
3. Make sure (E)GPRS link adaptation is enabled.
4. If frequency change doesn;t get good result, limit the (E)GPRS coding scheme up to MCS7 instead of MCS9. MCS7 is more robust than MCS9.