Apparatus and method for receiving packet data on a subset...

H - Electricity – 04 – W

Patent

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H04W 72/08 (2009.01)

Patent

CA 2583075

A wireless communication system includes base station (104) and remote station (102). The base station sends pilots on the allocated set of frequencies. The remote station estimates the channel and reports it back to the base station. Further, the base station selects a subset of the allocate frequencies to transmit in parallel packet data~s to the remote station. Each packet data is proceeded by a header field for identifying the remote station. At the same time the base station sends pilots in the frequencies other than the subset selected. The remote station receives the packet data and the pilots, repeats back the channels corresponding to the pilots so that the transmitter can frequency hop to new frequency channels which have been estimated.

L'invention concerne un système de communications sans fil comprenant une station de base (104) et une station distante (102). La station base envoie des pilotes sur un ensemble de fréquences attribuées. La station distante évalue la voie et fait un compte-rendu à la station de base. Puis, ladite station de base sélectionne un sous-ensemble des fréquences attribuées afin de transmettre des données en paquets en parallèle à la station distante. Chaque donnée en paquet est précédée d'un champ d'en-tête permettant d'identifier la stations distante. Simultanément, la station de base envoie des pilotes dans les fréquences autres que celles du sous-ensemble sélectionné. La station distante reçoit les données en paquets et les pilotes, répète des voies correspondant aux pilotes de sorte que l'émetteur peut effectuer un saut de fréquence vers de nouvelles voies de fréquence qui ont été estimées.

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