Radio communication system

H - Electricity – 04 – B

Patent

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H04B 7/26 (2006.01)

Patent

CA 2655260

In a radio communication system, unicast data and multicast data are multiplexed by time division by the same carrier in the downlink for transmission. During an uplink time section corresponding to a time section when the multicast data is transmitted by the downlink, each terminal transmits a signal autonomously or according to an instruction from a base station. The transmitted signal may be, for example, a random access signal, a downlink radio line quality measurement result signal, or an uplink radio line quality measuring pilot signal.

L'invention concerne un système de radiocommunications, dans lequel les données à diffusion individuelle et les données multidiffusion sont multiplexées par répartition dans le temps sur la même porteuse de la liaison descendante de transmission. Pendant un intervalle de temps de liaison montante correspondant à un intervalle de temps où les données de multidiffusion sont transmises par la liaison descendante, chaque terminal émet un signal de manière autonome ou du fait d'une instruction provenant d'une station de base. Le signal émis peut être, par exemple, un signal d'accès aléatoire, un signal de résultat de la mesure de la qualité de la liaison radio descendante, ou un signal pilote destiné à mesurer la qualité de la liaison radio montante.

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