L9331: DOWN_EGPRS_RLC_SIG_BLK_NUM
This measurement provides the number of downlink EGPRS RLC control blocks in a cell in a granularity period.
Integer number or integer.
Figure 1 shows the procedure in which the MS sends a PACKET DOWNLINK ACK/NACK message to the BSC. Every time the BSC receives a PACKET DOWNLINK ACK/NACK message (see measurement point A), the counter is incremented by one.
This is an original counter without involving any formula.