MOBILE COMMUNICATION SYSTEM, LOCATED AREA MANAGEMENT DEVICE, COMMUNICATION CONTROL DEVICE AND COMMUNICATION METHOD
First Claim
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1. A mobile communication system comprising:
- a located area management device configured to manage an area in which a mobile terminal is located; and
a communication control device configured to control an emergency report destination to which an emergency call from the mobile terminal is to be connected, according to the area in which the mobile terminal is located,the mobile terminal sending the emergency call through one of an ordinary radio base station and a small radio base station, the ordinary radio base station forming a first area that is a communicatable area with the mobile terminal, the small radio base station forming a second area that is a communicatable area smaller than the first area, whereinthe located area management device includes;
an area information registration unit configured to register area information when the mobile terminal is located in the second area, the area information having an ordinary area identifier and a small area identifier being associated with each other therein, the ordinary area identifier being for identifying the first area in which the mobile terminal has been located a predetermined time before or is to be located a predetermined time after the second area, the small area identifier being for identifying the second area; and
an area information response unit configured to refer to the area information and to notify the communication control device of the ordinary area identifier associated with the small area identifier, in response to an inquiry from the communication control device, andthe communication control device includes;
an area determination unit configured to determine the first area corresponding to the small area identifier by making an inquiry to the located area management device about the ordinary area identifier associated with the small area identifier, based on the small area identifier contained in the emergency call, upon receipt of the emergency call from the mobile terminal located in the second area; and
a communication control unit configured to acquire the emergency report destination associated with the first area determined by the area determination unit, and to connect the emergency call to the emergency report destination.
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Accused Products
Abstract
A communication control device 50 determines an area Al corresponding to the small area identifier by making an inquiry to a located area management device 40 about the ordinary area identifier associated with the small area identifier, based on the small area identifier contained in the emergency call, upon receipt of the emergency call from the mobile terminal 10 located in an area A2. The communication control device 50 acquires an emergency report destination device 70 associated with the area A1 determined, and to connect the emergency call to the emergency report destination device 70.
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Citations
9 Claims
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1. A mobile communication system comprising:
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a located area management device configured to manage an area in which a mobile terminal is located; and a communication control device configured to control an emergency report destination to which an emergency call from the mobile terminal is to be connected, according to the area in which the mobile terminal is located, the mobile terminal sending the emergency call through one of an ordinary radio base station and a small radio base station, the ordinary radio base station forming a first area that is a communicatable area with the mobile terminal, the small radio base station forming a second area that is a communicatable area smaller than the first area, wherein the located area management device includes; an area information registration unit configured to register area information when the mobile terminal is located in the second area, the area information having an ordinary area identifier and a small area identifier being associated with each other therein, the ordinary area identifier being for identifying the first area in which the mobile terminal has been located a predetermined time before or is to be located a predetermined time after the second area, the small area identifier being for identifying the second area; and an area information response unit configured to refer to the area information and to notify the communication control device of the ordinary area identifier associated with the small area identifier, in response to an inquiry from the communication control device, and the communication control device includes; an area determination unit configured to determine the first area corresponding to the small area identifier by making an inquiry to the located area management device about the ordinary area identifier associated with the small area identifier, based on the small area identifier contained in the emergency call, upon receipt of the emergency call from the mobile terminal located in the second area; and a communication control unit configured to acquire the emergency report destination associated with the first area determined by the area determination unit, and to connect the emergency call to the emergency report destination.
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2. A located area management device used in a mobile communication system in which a mobile terminal sends an emergency call through one of an ordinary radio base station and a small radio base station, the ordinary radio base station forming a first area that is a communicatable area with the mobile terminal, the small radio base station forming a second area that is a communicatable area smaller than the first area,
the located area management device comprising: -
an area information registration unit configured to register area information when the mobile terminal is located in the second area, the area information having an ordinary area identifier and a small area identifier being associated with each other therein, the ordinary area identifier being for identifying the first area in which the mobile terminal has been located a predetermined time before or is to be located a predetermined time after the second area, the small area identifier being for identifying the second area; and an area information response unit configured to refer to the area information and to notify the communication control device of the ordinary area identifier associated with the small area identifier, in response to an inquiry from the communication control device. - View Dependent Claims (3, 4, 5)
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6. A communication control device used in a mobile communication system in which a mobile terminal sends an emergency call through one of an ordinary radio base station and a small radio base station, the ordinary radio base station forming a first area that is a communicatable area with the mobile terminal, the small radio base station forming a second area that is a communicatable area smaller than the first area, the communication control device being configured to control an emergency report destination to which the emergency call is to be connected,
the communication control device comprising: -
an area determination unit configured to determine the first area corresponding to the small area identifier by making an inquiry to a located area management device managing an area where the mobile terminal is located, about the ordinary area identifier associated with the small area identifier, based on the small area identifier contained in the emergency call, upon receipt of the emergency call from the mobile terminal located in the second area; and a communication control unit configured to acquire the emergency report destination associated with the first area determined by the area determination unit, and to connect the emergency call to the emergency report destination. - View Dependent Claims (7, 8)
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9. A communication method used in a mobile communication system in which a mobile terminal sends an emergency call through one of an ordinary radio base station and a small radio base station, the ordinary radio base station forming a first area that is a communicatable area with the mobile terminal, the small radio base station forming a second area that is a communicatable area smaller than the first area,
the method comprising the steps of: -
registering area information in a device constituting the mobile communication system when the mobile terminal is located in the second area, the area information having an ordinary area identifier and a small area identifier being associated with each other therein, the ordinary area identifier being for identifying the first area in which the mobile terminal has been located a predetermined time before or is to be located a predetermined time after the second area, the small area identifier being for identifying the second area; determine the first area corresponding to the small area identifier by making an inquiry to the device for an area where the mobile terminal is located, about the ordinary area identifier associated with the small area identifier, based on the small area identifier contained in the emergency call, upon receipt of the emergency call from the mobile terminal located in the second area; and acquiring an emergency report destination that is a connection destination of the emergency call associated with the first area determined in the determining step, and connecting the emergency call to the emergency report destination.
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Specification