R3550M:CELL_SIG_CH_TRAF_SD
This measurement provides the traffic volume of signaling channels (SDCCH), that is, the average number of busy SDCCHs scanned in the granularity period.
Erl.
In the granularity period, this counter is calculated according to the following formula.
Traffic Volume on Signaling Channels (SDCCH) = [Number of Busy Signaling Channels (SDCCH)]/[Number of Attempts to Scan SDCCH States]