Context transfer systems and methods in support of mobility

Details Context transfer systems and methods in support of mobility Context transfer systems and methods in support of mobility

2010-11-03

2011-11-15

Doan, Kiet (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C455S456200, C455S436000, C455S442000, C370S331000

Reexamination Certificate

active

08059587

ABSTRACT:
A broad aspect of the invention provides a method of providing mobility support for a mobile node's traffic. The method involves maintaining context information for the mobile node on each of a first plurality of network nodes carrying the traffic; and proactively transferring and maintaining at least a portion of the context information in a plurality of network nodes which are not carrying the traffic, but which are candidates for carrying the traffic due to mobility of the mobile node. The method typically further involves defining and maintaining a definition of the second plurality of network nodes. In one embodiment of the invention, this involves adding a particular network node to the second plurality when the particular network node becomes a candidate for carrying the traffic, removing a particular network node from the second plurality when the particular network node is no longer a candidate for carrying the traffic. Furthermore, for each node in the second plurality of network nodes, a definition is made of a node in the first plurality of network nodes from which to obtain the context information.

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