Measurement of Outgoing Inter-RAT Inter-Cell Handover Commands (TDD)

Measurement Counter

H35101:CELL_INTERRAN_TDD_OUTCELL_HO_CMD_NOT_INCLUDE_DR_SD

H35171:CELL_INTERRAN_TDD_OUTCELL_HO_CMD_TCHF

H35181:CELL_INTERRAN_TDD_OUTCELL_HO_CMD_TCHH

Description

In the outgoing inter-RAT inter-cell handover (TDD) procedure, after receiving the HO CMD message from the MSC, the BSC sends the HO CMD message to the MS in the originating cell. The specific counter provides the number of outgoing inter-RAT inter-cell handover commands (TDD) sent by the BSC in the originating cell. Together with the Outgoing Inter-RAT Inter-Cell Handover Requests (TDD) and the Failed Outgoing Inter-RAT Inter-Cell Handovers (TDD), this counter determines the performance of the outgoing inter-RAT inter-cell handover (TDD).

The following counter provides the number of outgoing inter-RAT inter-cell handover commands (TDD) (excluding directed retry), when the BSC sends the HO CMD message to the MS and the MS seizes an SDCCH before the handover:

H35101:CELL_INTERRAN_TDD_OUTCELL_HO_CMD_NOT_INCLUDE_DR_SD.

The following two counters provide respectively the number of outgoing inter-RAT inter-cell handover commands when the MS seizes a TCHF or a TCHH before the handover. In this measurement, both the handovers initiated by directed retry and those initiated according to the handover algorithms based on the measurement reports are included.

H35171:CELL_INTERRAN_TDD_OUTCELL_HO_CMD_TCHF
H35181:CELL_INTERRAN_TDD_OUTCELL_HO_CMD_TCHH

Unit

Integer number or integer.

Measurement Point

As shown in Figure 1 and Figure 2, the counter is measured at B when the BSC sends the HO CMD message to the MS.

Figure 1 Measurement of the counters related to outgoing inter-RAT inter-cell handover (excluding directed retry) (TDD)

A	Measurement point of Outgoing Inter-RAT Inter-Cell Handover Requests (Excluding Directed Retry) (TDD)
B	Measurement point of Outgoing Inter-RAT Inter-Cell Handover Responses (Excluding Directed Retry) (TDD)
C	Measurement point of Successful Outgoing Inter-RAT Inter-Cell Handovers (Excluding Directed Retry) (TDD)

Figure 2 Measurement of the counters related to outgoing inter-RAT inter-cell handover (directed retry) (TDD)

A	Measurement point of Outgoing Inter-RAT Inter-Cell Handover Requests (Directed Retry) (TDD)
B	Measurement point of Outgoing Inter-RAT Inter-Cell Handover Responses (Directed Retry) (TDD)
C	Measurement point of Successful Outgoing Inter-RAT Inter-Cell Handovers (Directed Retry) (TDD)

Formula

This is an original counter without involving any formula.