Local location manager, home location manager and mobile communication system
First Claim
1. A local location manager for receiving registration of location information sent by a mobile router moving together with a group of mobile nodes in a master-slave relationship on behalf of the group;
- the location manager comprising;
means for updating location information registered with the local location manager;
means for sending a deletion request for deleting location information on the mobile router, which has requested registration of location information, to a different local location manager storing the location information on the mobile router; and
means for sending an update request for updating local location manager information indicating a correspondence relationship of the mobile router and the mobile nodes with the local location manager.
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Accused Products
Abstract
Time required for location registration is reduced and concentration of location update signals caused when a group moves is prevented. Each mobile node and a mobile router sends a location update request to a local location manager near to the area in which it exists, so that time required for location registration can be reduced, and it is possible to prevent pressure on wireless resources and temporary increase in communication traffic within a mobile network, which may be caused by concentration of location update signals when a group moves as in the case of a train with a lot of passengers having mobile nodes. Thereby, even if location registration is not correctly performed by a mobile router, which sends a location update request on behalf of mobile nodes existing in the space of a moving body, due to the communication condition or a failure, it can be dealt with.
14 Citations
11 Claims
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1. A local location manager for receiving registration of location information sent by a mobile router moving together with a group of mobile nodes in a master-slave relationship on behalf of the group;
- the location manager comprising;
means for updating location information registered with the local location manager;
means for sending a deletion request for deleting location information on the mobile router, which has requested registration of location information, to a different local location manager storing the location information on the mobile router; and
means for sending an update request for updating local location manager information indicating a correspondence relationship of the mobile router and the mobile nodes with the local location manager. - View Dependent Claims (2, 4, 5)
- the location manager comprising;
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3. A local location manager comprising:
- means for, in response to receiving the deletion request for deleting location information to a different local location manager, notifying the different location manager of registered contents for the mobile nodes in a master-slave relationship with a mobile router registered with the local location manager itself; and
means for deleting registered contents of location information and information indicating a master-slave relationship on the mobile router registered with the local location manager itself.
- means for, in response to receiving the deletion request for deleting location information to a different local location manager, notifying the different location manager of registered contents for the mobile nodes in a master-slave relationship with a mobile router registered with the local location manager itself; and
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6. A home location manager for managing local location manager information indicating a correspondence relationship of mobile nodes and a mobile router with a local location manager, with which location information on the mobile nodes and the mobile router are registered;
- the home location manager comprising;
means for, in response to receiving an update request for updating the local location manager information from a local location manager in association with the home location manager itself, updating the local location manager information registered with the home location manager itself; and
means for sending registered contents before update to the local location manager which has sent the update request.
- the home location manager comprising;
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7. A mobile communication system comprising:
- a first local location manager for receiving registration of location information from a mobile router moving together with a group of mobile nodes in a master-slave relationship on behalf of the group; and
a home location manager for managing local location manager information indicating a correspondence relationship of the mobile nodes and the mobile router with the local location manager;
whereinthe first local location manager comprises;
means for updating location information registered with the first local location manager itself;
means for sending a deletion request for deleting location information on the mobile router, which has requested registration of location information, to a different location manager storing the location information on the mobile router; and
means for sending an update request for updating local location manager information indicating a correspondence relationship of the mobile router and the mobile nodes with the local location manager; and
the home location manager comprises;
means for, in response to receiving an update request for updating the local location manager information from a local location manager in association with the home location manager itself, updating the local location manager information registered with the home location manager itself; and
means for sending registered contents before update to the first local location manager which has sent the update request. - View Dependent Claims (8, 9, 10, 11)
- a first local location manager for receiving registration of location information from a mobile router moving together with a group of mobile nodes in a master-slave relationship on behalf of the group; and
Specification