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Reply To: Drop due to BBS Interm/RTC – in ALU



AIC counters are counted per Atermux nibble, or A-interface timeslot
–> not per Atermux “timeslot”

There are some counters, such as C181 or C18x… that are counting messages sent or received by the BSC on the A interface. Thanks to them, you are able to investigate a problem on A interface. But they are not counted per Atermux nibble. They are counted per cell.

Regarding C181 precisely, could you check its properties ? Check the “trigger”. that will tell you which message is actually counted. Then go to the 3GPP and find in which situation this message is sent/received on A interface.
This is the way to do it… Can’t do it for you because I’m not in the office right now…