Radio Drop Rate of TCH

Measurement Counter

RM333: CELL_TCH_RD_DROP

Description

This measurement provides the ratio of call drops due to radio link failure.

Unit

%.

Measurement Point

At the end of the granularity period, this counter is calculated by using the following formula.

Formula

Radio Drop Rate of TCH =

([Call Drops on Radio Interface in Stable State (Traffic Channel)]+

[Call Drops on Radio Interface in Stable State (TCH Qua Signaling Channel) )])*{100}

/

(Successful TCH Seizures (Signaling Channel)]+

[Successful TCH Seizures (Traffic Channel)]+

[Successful TCH Seizures in TCH handovers (Traffic Channel)])