Controlling hand-off in a mobile node with two mobile IP clients
AssigneeFlarion Technologies, Inc.
InventorAlan O'Neill
Life of this patent
Estimating the term…
Abstract
Extending Mobile IP to support both local and remote access by using two MIP client stacks in the end node, a roaming Node in the local access network, a standard Home Agent in the remote network. Messages between the AR and the MN, and between the internal modules of the MN, are then used to control hand-off for each MIP client and to enable backwards compatibility with legacy remote access clients.
Claims20
A method of operating a mobile node including a local mobility agent module and a remote mobility agent module to interoperate with a communications network including a plurality of access nodes and a plurality of roaming nodes, a set including multiple access nodes being associated with at least one of said roaming nodes in said communications network, different ones of said access nodes being associated with different roaming nodes, the method comprising:
- operating said local mobility agent module to handle a handoff between two of said access nodes, said two of said access nodes including a first access node and a second access node;
- and
- operating said remote mobility agent module to handle handoff between two of said roaming nodes, said two of said roaming nodes including a first roaming node and a second roaming node.
A communications system comprising:
- a communications network including a plurality of access nodes and a plurality of roaming nodes, a set of access nodes including multiple access nodes being associated with at least one of said roaming nodes in said communications network, different ones of said access nodes being associated with different roaming nodes;
- a mobile node coupled to one of said access nodes, the mobile node including:
- a local mobility agent module including means for handling a handoff between two of said access nodes;
- and
- a remote mobility agent module including means for handling a handoff between two of said roaming nodes.
Dependencies are inferred from the claim text.