Method and associated apparatus for increment accuracy of geographical foreign agent topology relation in heterogeneous access networks
AssigneeNtt Docomo, Inc.
InventorsFujio Watanabe, Jingjun Cao, Toshio Miki
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Abstract
One aspect of the present invention regards a method of coordinating the handoff of a mobile carrier between a first access network and a second access network, the method including handing off from a first access network that the mobile carrier is currently operating within to a second access network and building physical access network topology based on the handing off without input from either the first access network or the second access network.
Claims29
A method for coordinating a handoff of a mobile device between a first access network and a second access network, the mobile device being registered to a server of a service provider which operates neither the first access network nor the second access network, the method comprising:
- receiving a message sent to the server from said mobile device;
- and
- after ascertaining that said message includes a new internet protocol (IP) address of the mobile device, the new IP address resulting from a hand-off of said mobile device from a first access network to a second access network, including said second access network in a physical access network topology map maintained by said server based on said message.
Dependencies are inferred from the claim text.