Method and apparatus for dynamically configuring a hybrid...

H - Electricity – 04 – L

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H04L 1/18 (2006.01)

Patent

CA 2641336

A method and apparatus for dynamically configuring a memory for hybrid automatic repeat request (H-ARQ) processes in a receiving node to permit a more flexible H-ARQ memory configuration and improve the performance of H-ARQ processes. An H-ARQ memory in the receiving node is reserved for a plurality of H-ARQ processes. A transmitting node dynamically configures the H-ARQ memory in the receiving node for each H-ARQ transmission so that the memory requirement for a plurality of H-ARQ processes exceeds the H-ARQ memory capacity. If there is insufficient H-ARQ memory available to support H-ARQ transmissions, only a subset of the plurality of H-ARQ processes may be activated at a time. When there is insufficient H-ARQ memory for processing H-ARQ transmissions, a negative acknowledgement (NACK), an acknowledgement (ACK), nothing, and/or information indicating the reason for a failed transmission may be transmitted to a transmitting node.

L'invention concerne un procédé et un appareil de configuration dynamique d'une mémoire pour des processus de demande de répétition automatique hybride (H-ARQ) dans un noeud de réception afin de permettre une configuration de mémoire H-ARQ plus souple et d'améliorer les performances de processus H-ARQ. Une mémoire H-ARQ au niveau du noeud de réception est réservée pour une pluralité de processus H-ARQ. Un noeud de transmission configure dynamiquement la mémoire H-ARQ au niveau du noeud de réception pour chaque transmission H-ARQ de sorte que les besoins de mémoire pour une pluralité de processus H-ARQ dépassent la capacité de mémoire H-ARQ. En cas d'insuffisance de mémoire H-ARQ disponible pour supporter les transmissions H-ARQ, seul un sous-ensemble de la pluralité de processus H-ARQ peut être activé à la fois. Lors d'une insuffisance de mémoire H-ARQ pour le traitement des transmissions H-ARQ, un accusé de réception (NACK) négatif, un accusé de réception (ACK), rien, et/ou des informations indiquant la raison d'un échec de transmission peuvent être transmis à un noeud de transmission.

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