Channel resource management within a digital mobile...

Details Channel resource management within a digital mobile... Channel resource management within a digital mobile...

H - Electricity

04

Q

H04Q 7/38 (2006.01) H04Q 7/22 (2006.01) H04Q 7/30 (2006.01)

Patent

CA 2270957

A disconnect time in accordance with the Global System for Mobile (GSM) Phase 1 standard is reduced within a particular base station controller (BSC) serving a particular mobile station (20). In response to a Layer 2 Disconnect message from a first mobile station (20) and after the expiration of the reduced disconnect time, the serving BTS (30) releases the indicated logical channel from the first mobile station (20) and enables the connected base station control (BSC) (40) to more efficiently allocate the released logical channel (SDCCH or TCH) to a second mobile station (25). Thereafter, additional Layer 2 Disconnect messages transmitted by the first mobile station (20) are ignored and no acknowledging Disconnect Mode (DM) message is transmitted over the indicated logical channel. Thus, collision over the same logical channel between the first and second mobile stations (20, 25) is avoided and the second mobile station (25) is able to communicate over the allocated logical channel.

Dans cette invention, un temps de déconnexion en accord avec la norme de Phase 1 GSM (Groupe spécial mobile) est réduit à l'intérieur d'un contrôleur de station de base particulier (BSC) desservant une station mobile particulière (20). En réponse à un message de déconnexion de couche 2 provenant d'une première station mobile (20) et après l'expiration du temps de déconnexion réduit, la station de base BTS serveuse (30) libère le canal logique indiqué de la première station mobile (20) et permet au contrôleur de station de base connecté (BSC) (40) d'attribuer plus efficacement le canal logique libéré (SDCCH ou TCH) à une seconde station mobile (25). Ensuite, les messages de déconnexion de couche 2 additionnels, transmis par la première station mobile (20) sont ignorés et aucun message d'accusé de réception en mode déconnexion (DM) n'est transmis sur le canal logique indiqué. Ainsi, toute collision sur le même canal logique entre la première et la seconde station mobile (20, 25) est évitée et la seconde station mobile (25) peut alors communiquer sur le canal logique attribué.

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