S4563: TRX_EXT_TCHF_ERASE_FRM_AVR_RATE
When decoding the customized extended MR or pre-processed customized extended MR from the BTS, the BSC checks whether the DelFrame cell is contained in the MS. If the cell is contained, and the MS is from the TCHH, then this counter is incremented by one.
Frame erasion rate reflects the bit error rate of the frames received by the DSP on the TRX of the BTS.
None.
After receiving a customized extended MR or pre-processed customized extended MR from the BTS over the TCHH, the BSC decodes the MR. This counter is measured when the DelFrame cell is contained in the MS.
This is an original counter without involving any formula.