Mobility support apparatus for mobile terminal
OwnerYuji Matsumotoinventor
Life of this patent
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Abstract
A home agent, when receiving a binding update message containing designation of a priority level in such a status that unauthorized binding is registered in a binding cache, judges which priority level, the priority level designated in this binding update message or a priority level related to the unauthorized binding, is higher, then updates, when judging that the former is higher than the latter, the binding cache with the binging contained in this binding update message, and deletes the unauthorized binding.
Claims18
A mobility support apparatus for a mobile terminal, having a storage unit stored with position information of said mobile terminal and controlling communications of said mobile terminal on the basis of the position information registered in said storage unit, said mobility support apparatus comprising:
- a priority level registering unit that registers a priority level of the position information registered in said storage unit;
- a communication unit;
- and
- an update processing unit that judges, with respect to a position information update request received by said communication unit, whether or not a priority level contained in the position information update request is higher than a priority level of an update target position information within said storage unit, and updates, when judging that the priority level contained in the position information update request is higher, the update target position information with the position information contained in the position information update request.
A mobility support apparatus for a mobile terminal, having a storage unit stored with position information of said mobile terminal and controlling communications of said mobile terminal on the basis of the position information registered in said storage unit, said mobility support apparatus comprising:
- a communication unit;
- and
- an update processing unit that receives a position information update request containing first position information from a management terminal of said mobility support apparatus via said communication unit, rewrites update target position information within said storage unit with the first position information, thereafter receives a position information update request containing second position information from said mobile terminal via said communication unit, and rewrites the first position information within said storage unit into the second position information.
A mobility support apparatus for a mobile terminal, having a storage unit stored with position information of said mobile terminal and controlling communications of said mobile terminal on the basis of the position information registered in said storage unit, said mobility support apparatus comprising:
- a communication unit;
- and
- an update processing unit that receives a position information update request sent from said mobile terminal having plural pieces of identifying information via said communication unit, and updates, if the storage unit is stored with the position information containing the mobile terminal identifying information different from the mobile terminal identifying information contained in the position information in this update request, the position information within said storage unit on the basis of the position information in the update request.
A mobile communication system comprising:
- a mobile terminal;
- a first mobility support apparatus;
- a second mobility support apparatus;
- and
- a gateway disposed in a private network accessed by said mobile terminal,
- wherein said first mobility support apparatus accepts position registration from said mobile terminal and from said gateway, and establishes communications between said mobile terminal and said gateway via said first mobility support apparatus itself, and
- said second mobility support apparatus accepts, when judging that said mobile terminal is unable to perform the communications with said gateway via said first mobility support apparatus due to a rise in load on said first mobility support apparatus, the position registration from said mobile terminal and from said gateway, and establishes the communications between said mobile terminal and said gateway via said second mobility support apparatus itself.
A mobile communication system comprising:
- a mobile terminal;
- a mobility support apparatus;
- and
- first and second gateways disposed in a private network accessed by a mobile terminal,
- wherein said mobility support apparatus accepts position registration from said mobile terminal and from said first gateway, and establishes communications between said mobile terminal and said first gateway via said mobility support apparatus itself, and
- said second gateway makes, if a load on said first gateway exceeds a predetermined value, the position registration in a way that serves as said first gateway in said mobility support apparatus, and takes over the communications with said mobile terminal from said first gateway.
Dependencies are inferred from the claim text.