Method and apparatus for maintaining communications when...

H - Electricity – 04 – W

Patent

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Details

H04W 40/24 (2009.01) H04W 76/00 (2009.01)

Patent

CA 2564657

A method and apparatus for maintaining communications between a mobile computer (102) and a mobile subscriber unit (104) is disclosed. The method and apparatus comprise determining whether a connection is available between the mobile subscriber unit (104) and a radio communications system. If a connection is available, then the method and apparatus include retrieving a first LP address for the mobile computer (102) from the radio communications system. Then, the method and apparatus comprise caching the first IP address in the mobile subscriber unit (104) for use by the mobile computer (102). Finally, the method and apparatus include utilizing the first IP address even if the radio communications system is unavailable and updating the first IP address with a second IP address obtained from the radio communications system when the radio communications system is available.

Un procédé et un appareil de maintien d'une communication entre un ordinateur portable (102) et une unité d'abonné immobile (104). Le procédé et l'appareil consistent à déterminer si une liaison est disponible entre l'unité d'abonné mobile (104) et un système de radio communication. Si une liaison est disponible, le procédé et l'appareil récupèrent une première adresse IP pour l'ordinateur (102) depuis le système de radio communication. Ensuite, le procédé et l'appareil mémorisent par cache la première adresse IP dans l'unité d'abonné mobile (104) que l'ordinateur portable va utiliser (102). Finalement, le procédé et l'appareil consistent à utiliser la premier adresse IP même si le système de radio communication n'est pas disponible et à mettre à jour la première adresse IP avec une seconde adresse IP obtenue depuis le système de radio communication lorsque le système de radio communication est disponible.

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