Communication network system and mobile terminal
First Claim
Patent Images
1. A communication network system comprising:
- a plurality of heterogeneous wireless communication systems;
a mobile terminal that communicates with the wireless communication systems; and
a location registering device that registers a location of the mobile terminal, whereinthe mobile terminal includesan identification-information extracting unit that extracts first identification information specific to a location registration area of each of the wireless communication systems from information received from each of the wireless communication systems,a first storage unit that stores therein correspondence information concerning a correspondence relationship between the first identification information and second identification information of a location registration area managed by the communication network system, anda location-registration requesting unit that extracts the second identification information corresponding to the first identification information based on the first identification information extracted by the identification-information extracting unit and the correspondence information stored in the first storage unit, and transmits location-registration request information for requesting the location registering device to perform a new location registration when the second identification information is updated by a movement of the mobile terminal.
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Abstract
An identification-information extracting unit extracts first identification information of a location registration area of a wireless communication system. A storage unit stores correspondence information concerning a relationship between the first identification information and second identification information of a location registration area managed by a communication network system. A location-registration requesting unit transmits location-registration request information for requesting a location registering device to perform a new location registration when the second identification information is updated by a movement of a mobile terminal.
11 Citations
24 Claims
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1. A communication network system comprising:
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a plurality of heterogeneous wireless communication systems; a mobile terminal that communicates with the wireless communication systems; and a location registering device that registers a location of the mobile terminal, wherein the mobile terminal includes an identification-information extracting unit that extracts first identification information specific to a location registration area of each of the wireless communication systems from information received from each of the wireless communication systems, a first storage unit that stores therein correspondence information concerning a correspondence relationship between the first identification information and second identification information of a location registration area managed by the communication network system, and a location-registration requesting unit that extracts the second identification information corresponding to the first identification information based on the first identification information extracted by the identification-information extracting unit and the correspondence information stored in the first storage unit, and transmits location-registration request information for requesting the location registering device to perform a new location registration when the second identification information is updated by a movement of the mobile terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mobile terminal that communicates with a plurality of heterogeneous wireless communication systems, and that moves while performing a location registration within a communication network system having the wireless communication systems, the mobile terminal comprising:
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an identification-information extracting unit that extracts first identification information specific to a location registration area of each of the wireless communication systems from information received from each of the wireless communication systems; a first storage unit that stores therein correspondence information concerning a correspondence relationship between the first identification information and second identification information of a location registration area managed by the communication network system; and a location-registration requesting unit that extracts the second identification information corresponding to the first identification information based on the first identification information extracted by the identification-information extracting unit and the correspondence information stored in the first storage unit, and transmits location-registration request information for requesting the location registering device to perform a new location registration when the second identification information is updated by a movement of the mobile terminal.
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14. A method of registering a location of a mobile terminal in a wireless communication system including a mobile terminal, a base station, and a controller that performs a location registering process of registering the location of the mobile terminal that communicates with the base station, the method comprising:
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first notifying including the base station notifying area identification information unique to a location registration area corresponding to the base station to the mobile terminal; receiving including the mobile terminal notified at the first notifying; comparing including the mobile terminal comparing the area identification information received at the receiving and registration-area identification information registered in the mobile terminal with each other; second notifying including the mobile terminal notifying the area identification information and mobile-terminal identification information unique to the mobile terminal to the controller via the base station on whether the area identification information is register as the registration-area identification information as a result of comparison at the comparing; third notifying including the controller notifying second area identification information associated with the area identification information to the mobile terminal corresponding to the mobile-terminal identification information based on the area identification information and the mobile-terminal identification information notified at the second notifying; and registering including the mobile terminal registering the second area identification information notified at the third notifying as the registration-area identification information of the mobile terminal. - View Dependent Claims (15, 16, 17)
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18. A wireless communication system including a mobile terminal, a base station, and a controller that performs a location registering process of registering the location of the mobile terminal that communicates with the base station;
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the base station notifies area identification information unique to a location registration area corresponding to the base station to the mobile terminal, the mobile terminal receives the area identification information notified by the base station, compares received area identification information with registration-area identification information registered in the mobile terminal, and notifies the area identification information and mobile-terminal identification information unique to the mobile terminal to the controller via the base station based on whether the area identification information is registered as the registration-area identification information as a result of comparison, the controller notifies a second area identification information associated with the area identification information to the mobile terminal corresponding to the mobile-terminal identification information based on the area identification information and the mobile-terminal identification information notified by the mobile terminal, and the mobile terminal registers the second area identification information notified by the controller as the registration-area identification information of the mobile terminal.
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19. A mobile terminal in a wireless communication system that includes a mobile terminal, a base station, and a controller that performs a location registering process of registering the location of the mobile terminal that communicates with the base station, wherein
the mobile terminal receives area identification information unique to a location registration area corresponding to the base station from the base station, compares received area identification information with registration-area identification information registered in the mobile terminal, notifies the area identification information and mobile-terminal identification information unique to the mobile terminal to the controller via the base station based on whether the area identification information is registered as the registration-area identification information as a result of comparison, and registers second area identification information associated with the area identification information notified by the controller based on the notified area identification information and mobile-terminal identification information as the registration-area identification information of the mobile terminal.
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20. A location registration method employed in a radio communication system having a controller registering a location of a mobile terminal communicating with a base station, the location registration method comprising:
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an information step of, at the base station, informing the mobile terminal of a location registration identifier specific to an area corresponding thereto; a determination step of, at the mobile terminal, receiving the location registration identifier and determining whether the received location registration identifier is present in a first identification information list, which stores therein the location registration identifier in advance; a first transmission step of, at the mobile terminal, transmitting a location-registration request message to the controller by way of the base station, when determining that the received location registration identifier is not present in the first identification information list at the determination step; a second transmission step of, at the controller, transmitting a second identification information list to the mobile terminal as a location-registration response message; and an update step of, at the mobile terminal, storing the second identification information transmitted from the controller. - View Dependent Claims (21, 22, 23, 24)
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Specification