Apparatus and method for changing subscription status of...

H - Electricity – 04 – W

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H04W 60/04 (2009.01)

Patent

CA 2699476

A method for changing a subscription status of a service in a mobile communication system, and a system thereof. A method is provided for changing a subscription status of a service by a terminal in a mobile communication system. The method includes transmitting a pause request message, in which a pause period of the subscription status is included, to a network entity; receiving, from the network entity, a pause response message including therein a possible pause period for the pause period included in the pause request message, and a trigger for changing validity for a Long-term Key stored in the terminal; and changing validity for the Long-term Key using the trigger for the possible pause period included in the pause response message.

L'invention concerne un procédé permettant de modifier un état d'abonnement à un service dans un système de communication mobile, et un système associé. Le procédé permet de changer un état d'abonnement à un service via un terminal dans système de communication mobile. Ce procédé consiste à : transmettre un message de demande de suspension incluant une période de suspension d'état d'abonnement à une entité de réseau; recevoir, de l'entité de réseau, un message de réponse de suspension comprenant une période de suspension éventuelle correspondant à la période de suspension incluse dans le message de demande de suspension, et un élément déclencheur permettant de modifier la validation d'une clé à long terme (LTK) stockée dans le terminal; et modifier la validité de la clé à long terme à l'aide de l'élément déclencheur selon une période de suspension éventuelle incluse dans le message de réponse de suspension.

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