Measurement Counter
S3010A:CELL_SIG_CH_MR_NUM_SD_900
S3010B:CELL_SIG_CH_MR_NUM_SD_1800
S3017A:CELL_SIG_CH_MR_NUM_FR_900
S3017B:CELL_SIG_CH_MR_NUM_FR_1800
S3018A:CELL_SIG_CH_MR_NUM_HR_900
S3018B:CELL_SIG_CH_MR_NUM_HR_1800
S3007A:CELL_TRAF_CH_MR_NUM_FR_900
S3007B:CELL_TRAF_CH_MR_NUM_FR_1800
S3008A:CELL_TRAF_CH_MR_NUM_HR_900
S3008B:CELL_TRAF_CH_MR_NUM_HR_1800
S3012:CELL_SIG_CH_MR_NUM_ULCELL
S3011:CELL_SIG_CH_MR_NUM_OLCELL
S3002:CELL_TRAF_CH_MR_NUM_ULCELL
S3001:CELL_TRAF_CH_MR_NUM_OLCELL
Description
After the BSC receives a valid MR or pre-processed MR from the BTS, the BSC measures the number of received MRs based on the frequency band of the cell (GSM900/850 or DCS1800/PCS1900), the channel type (SDCCH, TCHF, or TCHH), the cell type (normal cell or concentric cell), and the concentric attribute of the TRX (underlaid subcell or overlaid subcell).
NOTE: - Uplink MR: The BTS reports the uplink measurement result to the BSC, including whether the BTS is in the DTX mode, the transmit level and quality of the MS.
- Downlink MR: The MS sends the downlink measurement result in the format of the UI frame over the SACCH to the BTS. The measurement result includes whether the MS is in the DTX mode, the tramsmit level and quality of the BTS in the serving cell, number of neighbor cells (a maximum of six), and the downlink receive level and quality of the neighbor cell.
- During the power control at the BSC side or during the handover, the MS in converstation and the BTS together measure the radio link status to the BSC. The BTS reports the uplink and downlink measurements results in one MR to the BSC. Normally, the BTS sends an MR every 480 ms on the TCH and every 470 ms on the SDCCH.
- Pre-processing MR: If the BSC supports the pre-processed MR and power control is performed on the BTS, the BTS pre-processes the uplink and downlink measurement results, and then reports them to the BSC at the pre-defined interval for sending the pre-processed MR.
- Valid MR or pre-processed MR: The contents of the uplink and downlink MR or pre-processed MR are integrate and valid.
- Concentric cell, overlaid subcell, and underlaid subcell: TRXs in one cell differ in coverage; thus, two subcells with different radiuses form the concentric cells. Due to the difference in coverage, the overlaid subcell and the underlaid subcell can be regarded as two cells logically. The overlaid subcell carries most of the traffic because more channels are available, and thus serves most users in the coverage of the cell. The underlaid subcell is used to maximize the coverage and provide services for the area beyond the coverage of the overlaid subcell. The underlaid subcell covers the overlaid subcell and can share some traffic.
Unit
Integer number or integer.
Measurement Point
When the BSC receives a valid MR from the BTS in the serving cell, the specific counter is incremented by one based on the frequency band of the cell, the channel type, the cell type, and the concentric attribute of the TRX.
When the BSC receives a valid pre-processed MR from the BTS in the serving cell, the specific counter is incremented by M based on the frequency band of the cell, the channel type, the cell type, and the concentric attribute of the TRX. Table 1 lists the mapping between the frequency of sending the pre-processed MR and the number by which the counter is incremented.
Formula
This is an original counter without involving any formula.