P-CSCF fast handoff for IMS/MMS architecture

Fuchun Lin (Inventor)

Research output: Patent

Abstract

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.
Original languageAmerican English
Patent number8,098,627
IPCUS
Filing date11/09/07
StatePublished - 17 Jan 2012

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