P-CSCF fast handoff for IMS/MMS architecture

US8971291B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8971291-B2
Application numberUS-201113323317-A
CountryUS
Kind codeB2
Filing dateDec 12, 2011
Priority dateSep 11, 2006
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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Abstract

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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.

First claim

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What is claimed is: 1. A method for handoff in IMS/MMD architecture of a mobile node in a first network, said mobile node associated with a first protocol component in said first network, said first protocol component associated with a second protocol component in said first network, said mobile node moving from said first network to a second network, said method comprising: preparing to move said mobile node to said second network by transferring context information from said fir…

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What does patent US8971291B2 cover?
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 sign…
Who is the assignee on this patent?
Dutta Ashutosh, Ghosh Abhrajit, Das Subir, and 9 more
What technology area does this patent fall under?
Primary CPC classification H04W36/0038. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).