Mobile IP addressing

Details Mobile IP addressing Mobile IP addressing

2006-02-02

2009-12-15

Le, Danh C (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S338000, C370S389000, C455S439000, C455S436000

Reexamination Certificate

active

07633898

ABSTRACT:
A system and method are provided for mobile Internet Protocol (IP) addressing, in a multi-mode wireless communications access terminal (AT). The method provides an AT with an IP address (ATA), and a care-of-address (CoA) in each of a plurality of networks. In one aspect, the AT selects a first network for transmission, from the plurality of networks. The AT sends an IP packet to a correspondent node (CN) via a first mobile node (MN) external device. Regardless of the network selected, the AT is able to use the ATA as a source address. Sending the IP packet to the CN may include creating a tunnel between the first MN and the HA. The IP packet is sent to the HA using the first CoA as a tunnel source address, and the HA sends the IP packet to the CN using the ATA as the source address.

REFERENCES:
patent: 2006/0034209 (2006-02-01), O'Neill
patent: 2006/0062214 (2006-03-01), Ng et al.
patent: 2007/0047508 (2007-03-01), Yamada et al.
patent: 2007/0087748 (2007-04-01), Du et al.

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