Measurement Counter
L9311: DOWN_EGPRS_MCS1_RLC_DATA_BLK_VALID_TOTAL
L9312: DOWN_EGPRS_MCS2_RLC_DATA_BLK_VALID_TOTAL
L9313: DOWN_EGPRS_MCS3_RLC_DATA_BLK_VALID_TOTAL
L9314: DOWN_EGPRS_MCS4_RLC_DATA_BLK_VALID_TOTAL
L9315: DOWN_EGPRS_MCS5_RLC_DATA_BLK_VALID_TOTAL
L9316: DOWN_EGPRS_MCS6_RLC_DATA_BLK_VALID_TOTAL
L9317: DOWN_EGPRS_MCS7_RLC_DATA_BLK_VALID_TOTAL
L9318: DOWN_EGPRS_MCS8_RLC_DATA_BLK_VALID_TOTAL
L9319: DOWN_EGPRS_MCS9_RLC_DATA_BLK_VALID_TOTAL
Description
This measurement provides the total number of valid downlink RLC data blocks using MCS-1 to MCS-9 coding schemes in a cell in a granularity period. The more robust coding scheme, the more data transmitted on each data block. High proportion of valid downlink RLC data blocks indicates few retransmissions of downlink RLC data blocks.
Unit
Integer number or integer.
Measurement Point
Figure 1 shows the procedure in which the BSC sends a downlink EGPRS RLC data block using MCS-1 coding scheme and receives an EGPRS PACKET DOWNLINK ACK/NACK message. After receiving an EGPRS PACKET DOWNLINK ACK/NACK message from the MS (see measurement point A), the BSC determines the number of downlink EGPRS RLC data blocks using MCS-1 coding scheme received by the MS and updates the V(A) based on the bitmap in the PACKET DOWNLINK ACK/NACK message. Every time the V(A) is incremented by one, the counter is incremented by one.
The measurement point of the number of downlink EGPRS RLC data blocks using MCS-2 to MCS-9 coding schemes is the same as that of the number of downlink EGPRS RLC data blocks using MCS-1 coding scheme. The measurement is triggered after the downlink data block using the corresponding coding scheme is received and acknowledged.
Formula
This is an original counter without involving any formula.