AMR Call Drop Ratio,AMR traffic Drop Ratio

[mahr]

hi expert,
i need a help
what is the signficant of eatch huwaei counters:
AMR Call Drop Ratio
,AMR TRAFFIC Drop Ratio.

thks

[jounishida]

AMR Call Drop Analysis and Measurement
Measurement Counter
A0409N :CELL_CALL_DROP_CALL_TCHF_AMR_RATIO
A0409P :CELL_CALL_DROP_CALL_TCHH_AMR_RATIO
Description
In the measurement of AMR Call Drop, the measurement point is the same as the original service channel call drop times. The measurement is insensitive to the cause of call drops but is sensitive to full/half rate and whether the service is AMR. The AMR call drop provides the ratio of the number of AMR call drops to the total number of AMR calls.
Unit
%.
Measurement Point
At the end of the granularity period, this counter is calculated by using the following formula.
Formula
Full Rate AMR Call Drop = ([Full Rate AMR Service Channel Call Drop Times]/([Full Rate TCH Successful Occupancy Times (Signaling Channel)] + [Full Rate AMR TCH Successful Call Occupancy Times (Service Channel)] + [Full Rate AMR TCH Successful Handover Occupancy Times (Service Channel)])) x {100}
Half Rate AMR Call Drop = ([Half Rate AMR Service Channel Call Drop Times]/([Half Rate TCH Successful Occupancy Times (Signaling Channel)] + [Half Rate AMR TCH Successful Call Occupancy Times (Service Channel)] + [Half Rate AMR TCH Successful Handover Occupancy Times (Service Channel)])) x {100}


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