Improved method of operating a mobile telecommunications...

Details Improved method of operating a mobile telecommunications... Improved method of operating a mobile telecommunications...

H - Electricity

04

Q

H04Q 7/22 (2006.01) H04L 12/56 (2006.01) H04L 29/02 (2006.01) H04L 29/06 (2006.01)

Patent

CA 2351052

In a 3G telecom network, when a mobile wanders in a foreign network and a home agent (26) is allocated a Care of Address for the mobile, the home agent (26) also changes packet headers so that the destination address is the Care of Address, and there is a mobile node identifier field (50); the home agent maintains a mapping table of mobile nodes and mobile node identifiers. Route optimization is therefore provided. Quality of Service can be provided; when the mobile node sends a PATH message and a RSVP proxy server is built into the mobile node, the server changes the packet header source address to the mobile node; Care of Address, to prevent misrouting of the RESV message to the home network.

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