Distributed cache for a wireless communication system

Details Distributed cache for a wireless communication system Distributed cache for a wireless communication system

G - Physics

06

F

G06F 9/46 (2006.01) G06F 17/30 (2006.01) H04L 12/28 (2006.01)

Patent

CA 2384040

In a wireless system comprising a plurality of radio base station, each base station services a portion of the system. A cache is associated with each base station. The cache stores files regularly requested by the remote unit within the coverage area of the corresponding base station. When a base station receives a message from a remote unit, it parses the message to determine if the message comprises a file request. If so, the base station determines whether the file is available from the cache. If available, the base station responds to the request by forwarding the requested file from the cache. If the file is not available, the base station forwards the message to a central controller, which retrieves the file via the Internet from the appropriate content server and provides it to the base station.

L'invention porte sur un système de télécommunications sans fil comportant plusieurs stations radio de base desservant chacune une partie du système. A chaque station de base est associée une antémémoire qui enregistre les fichiers régulièrement demandés par des unités distantes de l'aire de couverture de la station de base correspondante. Quand une station de base reçoit d'une unité distante un message, elle l'analyse pour savoir s'il contient une demande de fichier. Si c'est le cas, la station de base recherche si le fichier est disponible dans l'antémémoire. Si oui, la station de base répond à la demande et envoie le fichier demandé. Si non, la station de base envoie le message à un contrôleur central qui par le biais d'Internet retrouve le fichier dans le serveur détenant le contenu approprié et le transmet à la station de base.

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