Packet data communication device and method in mobile...

Details Packet data communication device and method in mobile... Packet data communication device and method in mobile...

H - Electricity

04

Q

H04Q 7/38 (2006.01)

Patent

CA 2307341

A method for controlling channel access in a mobile communication system. A base station generates a broadcast channel frame, which includes status information indicating whether channel codes which are changing in real time are occupied or not. The base station transmits the broadcast channel frame at predetermined intervals. Then, a mobile station selects an available channel code based on information from the received broadcast channel frame, generates a channel assignment request message, and transmits the channel assignment request message on a random access channel. Upon reception of the channel assignment request message on the random access channel, the base station assigns a channel, sets a transmission rate, and transmits the information on a forward access channel.

L'invention concerne un procédé permettant de régir l'accès à un canal dans un système de communication mobile. Une station de base génère une trame du canal de télédiffusion comprenant une information d'état qui indique si les codes canaux changeant en temps réel sont ou non occupés. Puis cette station de base transmet ladite trame du canal de télédiffusion selon des intervalles prédéterminés, avant qu'une station mobile ne choisisse un code canal disponible sur la base de l'information transmise par la trame du canal de télédiffusion reçue, le message de demande d'attribution de canaux étant ensuite transmis par l'intermédiaire d'un canal d'accès aléatoire. Une fois reçu ce message de demande d'attribution de canaux sur le canal d'accès aléatoire, ladite station de base attribue un canal, fixe la vitesse de transmission, et transmet l'information sur un canal d'accès vers l'avant.

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