Measurement Counter
K3023: CELL_KPI_TCH_SUCC_SIG
Description
In the very early TCH assignment procedure, this measurement provides the number of successful attempts to activate the TCHs assigned by the BSC.
Unit
Integer number or integer.
Measurement Point
In the very early TCH assignment procedure, this counter is incremented by one when the BSC receives a CHANNEL ACTIVATION ACKNOWLEDGE message from the BTS. This counter is measured at B, as shown in Figure 1.
Formula
Successful TCH Seizures (Signaling Channel) =
([Channel Activation Attempts in Immediate Assignment Procedure (TCHF)] +
[Channel Activation Attempts in Immediate Assignment Procedure (TCHH)]) -
([CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (TCHF)] +
[CHAN ACTIV NACK Messages Sent by BTS in Immediate Assignment Procedure (TCHH)] +
[Channel Activation Timeouts in Immediate Assignment Procedure (TCHF)] +
[Channel Activation Timeouts in Immediate Assignment Procedure (TCHH)])