Measurement Counter
K3013A:CELL_KPI_TCH_ASS_SUCC_TRAF
Description
This measurement provides the number of successful TCH (traffic channel) seizures by the MS in assignment procedure.
Unit
Integer number or integer.
Measurement Point
If the assignment procedure is successful, the BSC sends the ASSIGNMENT COMPLETE message to the MSC and measures the counter. See measurement point B in Figure 1.
Formula
Successful TCH Seizures (Traffic Channel) =
[TCH Seizure Requests (Traffic Channel)] -
([Failed Assignments during MOC on the A Interface (Including Directed Retry)] +
[Failed Assignments during MTC on the A Interface (Including Directed Retry)] +
[Failed Assignments during Emergency Call on the A Interface (Including Directed Retry)] +
[Failed Assignments during Call Re-establishment on the A Interface (Including Directed Retry)] +
[Failed Mode Modify Attempts (MOC) (TCHF)] +
[Failed Mode Modify Attempts (MTC) (TCHF)] +
[Failed Mode Modify Attempts (Emergency Call) (TCHF)] +
[Failed Mode Modify Attempts (Call Re-establishment) (TCHF)] +
[Failed Mode Modify Attempts (MOC) (TCHH)] +
[Failed Mode Modify Attempts (MTC) (TCHH)] +
[Failed Mode Modify Attempts (Call Re-establishment) (TCHH)])