Patent ID: 6922805

Claim:
A transmission system comprising: at least one transmitter ( 10 ); at least one receiver ( 30 ); said transmitter including: means of transmitting packets (TX 1 ) that contain an indication of packet processing time (T T , T L ), where T T is the processing time of a packet Q T being processed at the moment that a retransmission request (RR) is transmitted, and T L is the processing time of a packet Q L to be retransmitted, and means of receiving (RX 1 ) retransmission requests (RR) relating to a packet to be retransmitted (Q L ); said receiver including: means of for receiving (RX 3 ) packets, means of processing the packets received (DEC), and means of transmitting (TX 3 ) retransmission requests relating to a packet to be retransmitted; wherein at least certain of said retransmission requests contain a recovery data (SN T ; T T ) allowing the recovery of the processing time indication (T T ), where SN T is a sequence number for a packet Q T ; and said transmitter further including: means (E 1 ) of recovering a processing time indication (T T ) from a recovery data (SN T , T T ) contained in a received retransmission request, and means (E 1 ) of comparing the recovered processing time indication and the processing time indication of the packet to be retransmitted, so as to authorize or block the retransmission of the packet to be retransmitted, whereby retransmission is permitted if T L −T T ≧½θ(θ being an estimate of the round-trip transmission time on an associated transmission network), and if T L −T T <½θ, retransmission is blocked.