ZTA03490:BSCRPT_KPI_VGCS_DL_TRAF_ERL
This measurement provides the ratio of the number of busy VGCS downlink TCH to the number of attempts to scan channel states. This counter indicates the frequency of seizing the downlink VGCS TCHs in the BSC.
Erl.
At the end of each granularity period, this counter is measured by using the following formula. For details, see the related formula.
Traffic Volume of VGCS Downlink TCH per BSC = Number of Busy VGCS Downlink TCH per BSC/Number of Attempts to Scan Channel States per BSC