Call Drops on Radio Interface in Stable State (Traffic Channel) (TCHF)

Measurement Counter

RM3171: CELL_TRAF_CH_CALL_DROPS_IN_STABLE_STATE_TCHF

Description

This measurement provides the number of calls released because of the ERR IND, CONN FAIL IND, and REL IND messages the BSC receives after the MS seizes a traffic channel (TCHF).

Unit

Integer number or integer.

Measurement Point

The value of this counter is calculated according to the following formula.

Formula

Call Drops on Radio Interface in Stable State (Traffic Channel) (TCHF) =

[Call Drops Due to ERR IND Received on TCHF (Traffic Channel) in Stable State (T200 Expired)] +

[Call Drops Due to ERR IND Received on TCHF (Traffic Channel) in Stable State (Unsolicited DM Response)] +

[Call Drops Due to ERR IND Received on TCHF (Traffic Channel) in Stable State (Sequence Error)] +

[Call Drops Due to CONN FAIL Received on TCHF (Traffic Channel) in Stable State (Radio Link Failure)] +

[Call Drops Due to CONN FAIL Received on TCHF (Traffic Channel) in Stable State (HO Access Failure)] +

[Call Drops Due to CONN FAIL Received on TCHF (Traffic Channel) in Stable State (OM Intervention)] +

[Call Drops Due to CONN FAIL Received on TCHF (Traffic Channel) in Stable State (Radio Resource Unavailable)] +

[Call Drops Due to CONN FAIL Received on TCHF (Traffic Channel) in Stable State (Other Causes)] +

[Call Drops Due to REL IND Received on TCHF (Traffic Channel) in Stable State]


Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.