System and method for priority access channel assignment in...

H - Electricity – 04 – W

Patent

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H04W 72/10 (2009.01) H04W 74/00 (2009.01)

Patent

CA 2341199

A priority access channel assignment system and a messaging protocol for wireless mobile stations. A mobile station (MS1, ..., MS10) originates a call that manually or automatically includes a request for priority access. If system resources are unavailable to process the call immediately, the origination message is processed by a base station (BS1, BS2) and a mobile switching center (MSC) using a plurality of messaging protocols to determine the time at which the call was originated and the priority associated with the call. Based on priority and arrival time, the base station (BS1, BS2) queues the call where higher priority calls are placed in a higher position in the queue than lower priority calls. Calls having identical priority may be placed in the queue in order of the time of arrival. When system resources become available, the pending call with the highest priority is assigned a channel and the call is processed in a conventional manner.

L'invention concerne un système d'attribution de voies d'accès prioritaires et un protocole de messagerie qui sont destinés aux stations mobiles sans fil. Une station mobile (MS1, ..., MS 10) lance un appel dans lequel on a inclus manuellement ou automatiquement une demande d'accès prioritaire. Si les ressources système sont insuffisantes pour traiter l'appel immédiatement, le message de lancement est traité par une station de base (BS1, BS2) et par un centre de commutation mobile (CCM) en utilisant plusieurs protocoles de messagerie pour déterminer le temps de lancement de l'appel et la priorité associée à cet appel. Sur la base de la priorité et du temps d'arrivée, la station de base (BS1, BS2) met l'appel en une file d'attente dans laquelle les appels à priorité élevée occupent une position plus élevée que les appels à priorité inférieure. Les appels ayant une priorité identique peuvent être placés dans la file d'attente selon le temps d'arrivée. Lorsque des ressources système se libèrent, l'appel en attente ayant une priorité plus élevée est attribué à une voie; l'appel est ensuite traité selon une procédure ordinaire.

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