FIELD: communication facilities.
SUBSTANCE: invention concerns communication systems. Invention claims methods and systems for application in communication system for selective delay of absent acknowledgement (NAK) transmission after the original NAK requesting for retransmission of damaged packet has already been sent. Receiver launches NAK banning timer associated with specific NAK and bans inclusion of specific NAK into condition reports for receiver till timer-set period expires. Use of NAK banning timer reduced probability of false retransmissions from receiver caused by second NAK from receiver when retransmission process is already launched.
EFFECT: improved efficiency of resource utilisation.
34 cl, 10 dwg
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