Measurement Counter
R3827:CELL_LOCALSWITCH_LOOP_FAIL_OTHER
Description
After the call is put through or the incoming BSC handover for the speech service is complete, the BSC selects the BSS local switch policy, determines whether the conditions for initiating the local switch are met, and performs local switch call detection during the local loopback. If all the local switch conditions are met, the BSC/BTS loopback is started. The loopback, however, fails because of other causes (the causes other than No Loopback Policy Available, Invalid State, Failures on the BTS Side, Territorial Resource Request Failure, Timer Expired, or Not Support by the BTS).
This measurement provides the number of loopback start failures due to other causes.
Unit
Integer number or integer.
Measurement Point
After the BSC receives the CONNECT ACK message from the MSC in the MS terminated call procedure, as shown in Figure 1(A1), or after the BSC receives the HANDOVER CMP message from the MS in the incoming BSC handover procedure, as shown in Figure 2 (B1), the BSC selects the BSS local switch policy, determines whether the conditions for initiating the local switch are met, and performs local switch call detection. If all the local switch conditions are met, the BSC/BTS local loopback start procedure is started. Within the BSC, the call processing module initiating loopback start at one end sends a loopback request message to the call processing module at the peer end. The call processing module at the peer end, however, returns a loopback reject message due to other causes. The loopback start fails. In this case, this counter is measured in the cell where the loopback start is initiated.
Formula
This is an original counter without involving any formula.