Timer-based feedback in multicast communication

H - Electricity – 04 – L

Patent

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Details

H04L 1/18 (2006.01) H04L 1/00 (2006.01) H04L 12/18 (2006.01)

Patent

CA 2488369

A multicast system is described in which a mechanism for suppressing feedback involves the receivers using an optimized timer function for selecting a backoff delay time before sending feedback, and canceling their feedback if in the meantime they detect that another receiver has sent a duplicate feedback message. The timer function is optimised, taking into account both the expected number of feedback messages and the extra latency which is introduced by the feedback mechanism, by minimizing an objective function expressed in terms of both these two aspects

L'invention concerne un système à multidestination dans lequel un mécanisme conçu pour supprimer une rétroaction implique les récepteurs utilisant une fonction de chronomètre optimisée pour sélectionner un temps de retard de régression avant d'envoyer une rétroaction, et annulant leur rétroaction si, entre-temps, ils détectent qu'un autre récepteur a envoyé un message de rétroaction double. On optimise la fonction de chronomètre en tenant compte du nombre escompté de messages de rétroaction et du temps d'attente supplémentaire introduit par le mécanisme de rétroaction, et en minimisant une fonction objective exprimée en termes de ces deux aspects.

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