IP mobility

Details IP mobility IP mobility

2011-08-30

2011-08-30

Ly, Nghi H (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C455S436000, C455S442000, C455S415000

Reexamination Certificate

active

08009631

ABSTRACT:
A method of forwarding IP packets, sent to an old care-of-address of a mobile node, to the mobile node following a handover of the mobile node from a first old access router to a second new access router. The method comprises, prior to completion of said handover, providing said first router or another proxy node with information necessary to determine the new IP care-of address to be used by the mobile node when the mobile node is transferred to the second access router. At said first router or said proxy node, the new care-of-address for the mobile node is determined using said information and ownership of the new care-of-address by the mobile node confirmed, and subsequently packets received at said first access network and destined for said old care-of-address are forwarded to the predicted care-of-address address.

REFERENCES:
patent: 7031709 (2006-04-01), Watanabe et al.
patent: 7535870 (2009-05-01), Nikander et al.
patent: 2003/0225892 (2003-12-01), Takusagawa et al.

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