Proxy call session control function fast handoff for ip...

H - Electricity – 04 – W

Patent

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Details

H04W 36/18 (2009.01) H04W 8/18 (2009.01) H04W 12/00 (2009.01) H04W 12/04 (2009.01)

Patent

CA 2663143

A mechanism by which handoff delay can be minimized while not compromising the IMS/MMD security and also protecting the media if required by certain applications is presented. One proactive method includes proactive authentication. Another proactive method includes proactive security association, such as transferring SA keys from old proxy to new proxy, or transferring keys through serving signal entities. Reactive methods include transferring SA keys from old proxy to new proxy, using either push or pull technology. Other reactive methods include transferring keys through serving signal entities using either push or pull technology.

L'invention concerne un mécanisme qui permet de minimiser le délai de transfert tout en ne compromettant pas la sécurité d'IMS/MMD et en protégeant le support le cas échéant par certaines applications. Un procédé proactif comporte une authentification proactive. Un autre procédé proactif comporte une association de sécurité proactive, par exemple le transfert de clés SA d'un ancien à un nouveau mandataire, ou le transfert de clés par le biais de service à des entités de signalisation. Les procédés réactifs consistent notamment à transférer les clés SA d'un ancien à un nouveau mandataire au moyen d'une technologie de pousser ou de tirer. D'autres procédés réactifs consistent notamment à transférer des clés par le biais de service à des entités de signalisation au moyen d'une technologie de pousser ou de tirer.

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