Mobile switchboard, mobile unit, mobile communication system, and position-registration extending method
First Claim
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1. A mobile switchboard comprising:
- an incoming-call recording unit that records number of incoming calls to a mobile unit, which is movable between a plurality of position registration areas, the number of incoming calls within a predetermined time period;
a movement recording unit that records, every time the mobile unit changes a location to a first area that is one of the position registration areas, a moving condition of the mobile unit, the moving condition of movement between the first area and a second area that is one of the position registration areas and in which the mobile unit has previously been located; and
an area extending unit that extends a position registration area to form a third area by combining the first area and the second area, that records the third area in the movement recording unit, and that informs the mobile unit of the third area, wherein the area extending unit determines whether to combine the first area with the second area based on the number of incoming calls and the moving condition, and the area extending unit extends the position registration area when it is determined to combine the first area with the second area.
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Abstract
A mobile unit transmits a request for position registration to a network when moving from a first area to a second area. When the number of incoming calls does not exceed a threshold and the number of movements between the first area and the second area exceeds a threshold, a mobile switchboard combines the first area and the second area into an extended area, and informs the mobile unit of the extended area.
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Citations
22 Claims
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1. A mobile switchboard comprising:
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an incoming-call recording unit that records number of incoming calls to a mobile unit, which is movable between a plurality of position registration areas, the number of incoming calls within a predetermined time period;
a movement recording unit that records, every time the mobile unit changes a location to a first area that is one of the position registration areas, a moving condition of the mobile unit, the moving condition of movement between the first area and a second area that is one of the position registration areas and in which the mobile unit has previously been located; and
an area extending unit that extends a position registration area to form a third area by combining the first area and the second area, that records the third area in the movement recording unit, and that informs the mobile unit of the third area, wherein the area extending unit determines whether to combine the first area with the second area based on the number of incoming calls and the moving condition, and the area extending unit extends the position registration area when it is determined to combine the first area with the second area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A mobile unit that performs communication in a plurality of position registration areas in a network that includes a mobile switchboard that manages position information of the mobile unit and that performs switching control of incoming and outgoing calls for the mobile unit, the mobile unit comprising:
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an area recording unit that records a first area that is one of the position registration areas and to which the mobile unit moves to change a location and a second area that is one of the position registration areas and in which the mobile unit has previously been located; and
a registration requesting unit that requests the mobile switchboard for registration of the first area, wherein the area recording unit combines the first area and the second area, and records the first area and the second area combined when the switchboard notifies the mobile unit of completion of the registration that is performed in accordance with the request from the registration requesting unit, and the registration requesting unit requests the registration only when the first area is a new area that is one of the position registration areas and that has not been recorded in the area recording unit. - View Dependent Claims (10, 11, 12, 13)
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14. A mobile communication system comprising:
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a mobile unit that is communicable while moving within a plurality of position registration areas in a network; and
a mobile switchboard that manages position information of the mobile unit and that performs switching control of incoming and outgoing calls for the mobile unit, wherein the mobile switchboard includes;
an incoming-call recording unit that records number of incoming calls to the mobile unit within a predetermined time period;
a movement recording unit that records, every time the mobile unit changes a location to a first area that is one of the position registration areas, a moving condition of the mobile unit, the moving condition of movement between the first area and a second area that is one of the position registration areas and in which the mobile unit has previously been located; and
an area extending unit that extends a position registration area to form a third area by combining the first area with the second area, that records the third area in the movement recording unit, and that informs the mobile unit of the third area, wherein the area extending unit extends the position registration area when the number of incoming calls does not exceed a predetermined threshold and the number of movements between the position registration areas within a predetermined time period exceeds a predetermined threshold, and the mobile unit includes;
an area recording unit that records the third area that is notified by the mobile switchboard; and
a registration requesting unit that requests the mobile switchboard for registration of the first area, wherein the registration requesting unit requests the registration only when the first area is a new area that is one of the position registration areas and that has not been recorded in the area recording unit. - View Dependent Claims (15)
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16. A method for extending position registration in a mobile switchboard that communicates with a mobile unit, that manages position information of the mobile unit, and that performs switching control of incoming and outgoing calls for the mobile unit, the method comprising:
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recording number of incoming calls to the mobile unit within a predetermined time period;
recording, every time the mobile unit changes a location to a first area that is one of the position registration areas, a moving condition of the mobile unit, the moving condition of movement between the first area and a second area that is one of the position registration areas and in which the mobile unit has previously been located; and
extending a position registration area to form a third area, when the number of incoming calls does not exceed a predetermined threshold and number of movements within a predetermined time period exceeds a predetermined threshold, wherein the extending includes;
combining the first area and the second area; and
notifying the mobile unit of the third area. - View Dependent Claims (17)
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18. A method for extending position registration in a mobile unit that moves in a plurality of position registration areas in a network, the method with which the mobile unit requests a mobile switchboard for registration of a position, the mobile switchboard managing position information that relates to movement of the mobile unit, the method comprising:
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requesting the mobile switchboard, when the mobile unit changes a location to a first area that is one of the position registration areas, and when the first area is different area from a second area that is one of the position registration areas and in which the mobile unit has previously been located, for registration of the first area, the first area determined to be different from the second area with reference to a record that indicates a position registration area in which the mobile unit has previously been located; and
adding, based on a notification of a response from the mobile switchboard to the requesting, the first area to the record. - View Dependent Claims (19)
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20. A method for extending position registration in which a mobile unit moves in a plurality of position registration areas in a network, and position information of the mobile unit is managed by a mobile switchboard, the method comprising:
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recording position registration areas in which the mobile unit has been located before;
recording number of incoming calls to the mobile unit within a predetermined time period;
extending a position registration area when the number of incoming calls does not exceed a predetermined threshold and number of movements between the position registration areas within a predetermined time period exceeds a predetermined threshold, wherein the extending includes;
combining a first area with a second area to form a third area, the fist area being one of the position registration areas and in which the mobile unit moves to change a location, the second area being one of the position registration areas and in which the mobile unit has previously been located; and
recording the third area; and
notifying the mobile unit of the third area. - View Dependent Claims (21, 22)
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Specification