Method for controlling gated transmission of dedicated...

H - Electricity – 04 – B

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Details

H04B 7/26 (2006.01) H04B 1/69 (2006.01) H04B 1/707 (2006.01)

Patent

CA 2333135

There is provided a method for controlling gated transmission of a dedicated channel signal in a W-CDMA communication system. In the W-CDMA communication system, a dedicated control channel has 15 slots in one frame, each slot includes a TFCI bit, a TPC bit, and a pilot bit, and the dedicated control channel and a dedicated data channel for transmitting packet data are multiplexed prior to transmission. In an embodiment of the present invention, a base station transmits to a mobile station a gated transmission command message including a gating rate and a gated transmission start time for gated transmission of the dedicated control channel signal, if no data exists on the dedicated data channel for a predetermined period of time. Then, the base station transmits the dedicated control channel signal in a gated mode at the gated transmission start time set in the gated transmission command message.

L'invention se rapporte à un procédé de commande de l'émission intermittente d'un signal de canal spécialisé dans un système de communication W-CDMA (accès multiple par code de répartition-large bande). Dans un tel système, un canal de commande spécialisé comporte 15 intervalles de temps dans chaque trame, chaque intervalle comprenant un bit TFCI, un bit TPC et un bit pilote, et le canal de commande spécialisé et un canal de données spécialisé destiné à la transmission des paquets de données sont multiplexés avant l'émission. Dans une réalisation préférée de l'invention, une station de base émet à destination d'une station mobile un message de commande d'émission intermittente incluant une cadence de portillonnage et un instant de démarrage de l'émission intermittente du signal du canal de commande spécialisé, si aucune donnée n'est présente sur le canal de données spécialisé pendant un laps de temps préétabli. Puis la station de base émet le signal du canal de commande spécialisé en mode intermittent à l'instant de démarrage de l'émission intermittente défini dans le message de commande d'émission intermittente.

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