Method and apparatus implementing retransmission in a...

Details Method and apparatus implementing retransmission in a... Method and apparatus implementing retransmission in a...

H - Electricity

04

B

H04B 7/216 (2006.01) G06F 11/00 (2006.01) G08C 25/02 (2006.01) H03M 13/00 (2006.01) H03M 13/03 (2006.01) H04J 3/16 (2006.01) H04J 3/22 (2006.01) H04L 1/00 (2006.01) H04L 1/18 (2006.01) H04L 12/413 (2006.01)

Patent

CA 2457230

An apparatus and corresponding method (Fig. 4) for responding to a repeat request in a wireless communication system in which packets are communicated according to a modulation and coding scheme, with one or more packets provided in a frame communicated during a transmission time interval, the method including the steps of: if a repeat request is received, then ordering in a second order the bits of the packets associated with the repeat request, and repeating the steps up to and including retransmitting the packets associated with the repeat request; wherein the second order, the symbols constituting the modulation are generated differently than in the original transmission.

L'invention concerne un appareil et un procédé correspondant, permettant de répondre à une demande de répétition dans un système de communication sans fil, dans lequel des paquets sont transmis selon un schéma de modulation et de codage, un ou plusieurs paquets fournis dans une trame étant transmis pendant un intervalle de temps de transmission. Ledit procédé comprend différentes étapes, dont celle consistant, lors de la réception d'une demande de répétition, à classer dans un second ordre les bits contenus dans les paquets associés à la demande de répétition, et à répéter les étapes précédant et comprenant la retransmission des paquets associés à la demande de répétition; dans le second ordre, les symboles constituant la modulation ne sont pas générés de la même façon que dans la transmission originale.

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