Outgoing Inter-RAT Inter-Cell Handover Requests (TDD)

Measurement Counter

CH3501:CELL_INTERRAN_TDD_OUTCELL_HO_REQ

Description

The BSC uses the handover algorithm to decide whether a handover is required based on the measurement reports. If a handover is required, and if the target cell is in a TD-SCDMA system, an outgoing inter-RAT inter-cell handover (TDD) is initiated.

This measurement provides the outgoing inter-RAT inter-cell handover requests (TDD) initiated by the BSC. The measurement is performed based on the originating cell and involves handovers on the SDCCH, TCHF, and TCHH.

Unit

Integer number or integer.

Measurement Point

As shown in Figure 1 and Figure 2, the counter is measured at A when the BSC decides that an outgoing inter-RAT inter-cell handover (TDD) is required based on the measurement report.

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

Outgoing Inter-RAT Inter-Cell Handover Requests (TDD) = [Outgoing Inter-RAT Inter-Cell Handover Requests (SDCCH) (Excluding Directed Retry) (TDD)] +

[Outgoing Inter-RAT Inter-Cell Handover Requests (TCHF) (TDD)] +

[Outgoing Inter-RAT Inter-Cell Handover Requests (TCHH) (TDD)]