Measurement of Incoming Internal Inter-Cell Handover Responses

Measurement Counter

H3210W:CELL_INTRABSC_INCELL_HO_CMD_SD_900_900

H3210X:CELL_INTRABSC_INCELL_HO_CMD_SD_1800_1800

H3210Y:CELL_INTRABSC_INCELL_HO_CMD_SD_900_1800

H3210Z:CELL_INTRABSC_INCELL_HO_CMD_SD_1800_900

H3217W:CELL_INTRABSC_INCELL_HO_CMD_TCHF_900_900

H3217X:CELL_INTRABSC_INCELL_HO_CMD_TCHF_1800_1800

H3217Y:CELL_INTRABSC_INCELL_HO_CMD_TCHF_900_1800

H3217Z:CELL_INTRABSC_INCELL_HO_CMD_TCHF_1800_900

H3218W:CELL_INTRABSC_INCELL_HO_CMD_TCHH_900_900

H3218X:CELL_INTRABSC_INCELL_HO_CMD_TCHH_1800_1800

H3218Y:CELL_INTRABSC_INCELL_HO_CMD_TCHH_900_1800

H3218Z:CELL_INTRABSC_INCELL_HO_CMD_TCHH_1800_900

H321a:CELL_INTRABSC_INCELL_HO_CMD_BSC_LOOP

H321b:CELL_INTRABSC_INCELL_HO_CMD_BTS_LOOP

Description

After receiving the measurement report from the MS, the BSC determines whether to initiate a handover and allocates the channels in the target cell, and then sends an HO CMD to the MS in the originating cell.

The specific counter provides the number of HO CMD messages sent by the BSC to the MS during the incoming internal inter-cell handover procedure. Together with the Incoming Internal Inter-Cell Handover Requests and the Failed Incoming Internal Inter-Cell Handovers, this counter determines the incoming internal inter-cell handover performance. Together with the counters related to the outgoing internal inter-cell handover, this counter determines the internal inter-cell handover performance.

The following counters provides the number of incoming internal inter-cell handover requests based on the target channel types and the frequency bands between which the handover is performed. The channel types include the SDCCH and TCH, and the handover occurs between the frequency bands as listed in Table 1.

H3210W:CELL_INTRABSC_INCELL_HO_CMD_SD_900_900
H3210X:CELL_INTRABSC_INCELL_HO_CMD_SD_1800_1800
H3210Y:CELL_INTRABSC_INCELL_HO_CMD_SD_900_1800
H3210Z:CELL_INTRABSC_INCELL_HO_CMD_SD_1800_900
H3217W:CELL_INTRABSC_INCELL_HO_CMD_TCHF_900_900
H3217X:CELL_INTRABSC_INCELL_HO_CMD_TCHF_1800_1800
H3217Y:CELL_INTRABSC_INCELL_HO_CMD_TCHF_900_1800
H3217Z:CELL_INTRABSC_INCELL_HO_CMD_TCHF_1800_900
H3218W:CELL_INTRABSC_INCELL_HO_CMD_TCHH_900_900
H3218X:CELL_INTRABSC_INCELL_HO_CMD_TCHH_1800_1800
H3218Y:CELL_INTRABSC_INCELL_HO_CMD_TCHH_900_1800
H3218Z:CELL_INTRABSC_INCELL_HO_CMD_TCHH_1800_900

**Table 1** Relations between counters and the frequency bands of the originating cell and the target cell
Frequency Band of the Originating Cell	Frequency Band of the Target Cell	Counter
GSM900, GSM900&DCS1800, GSM850, GSM850&DCS1800, GSM850&PCS1900	GSM900, GSM900&DCS1800, GSM850, GSM850&DCS1800, GSM850&PCS1900	900_900
GSM900, GSM900&DCS1800, GSM850, GSM850&DCS1800, GSM850&PCS1900	DCS1800, PCS1900	900_1800
DCS1800, PCS1900	GSM900, GSM900&DCS1800, GSM850, GSM850&DCS1800, GSM850&PCS1900	1800_900
DCS1800, PCS1900	DCS1800, PCS1900	1800_1800

The following counters are measured based on the loop types. The loop types include the BSC loop and BTS loop.

H321a:CELL_INTRABSC_INCELL_HO_CMD_BSC_LOOP
H321b:CELL_INTRABSC_INCELL_HO_CMD_BTS_LOOP

Unit

Integer number or integer.

Measurement Point

After the BSC sends an HO CMD to the MS from the originating cell, this counter is measured in the target cell at B as shown in Figure 1.

Figure 1 Measurement of counters related to the incoming internal inter-cell handover

A	Measurement point of Incoming Internal Inter-Cell Handover Requests
B	Measurement point of Incoming Internal Inter-Cell Handover Responses
C	Measurement point of Incoming Internal Inter-Cell Handover Detection Messages Received by BSC
D	Measurement point of Successful Incoming Internal Inter-Cell Handovers

Formula

This is an original counter without involving any formula.