Communication apparatus, terminal, and communication method
First Claim
Patent Images
1. A communication apparatus in a home network comprising:
- a receiver configured to receive a session establishment request from a terminal, the terminal being registered in an IMS (IP (Internet Protocol) Multimedia Subsystem) in the home network and located in a visited network;
a receiver configured to receive first information from a management apparatus managing a policy and a charging rule, the first information related to identify the visited network in which the terminal is located;
a controller configured to access a database to obtain second information related to emergency numbers for the visited network corresponding to the first information;
anda transmitter configured to send a response to the terminal, the response indicating a rejection of the session establishment request in response to detection of the session establishment request for an emergency session, the detection being based on the second information.
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Accused Products
Abstract
A communication apparatus includes a location information acquisition unit that acquires location information of a terminal, a reception unit that receives a call request transmitted by the terminal, a service identification unit that identifies a service of the request based on the location information of the terminal and a destination telephone number of the request, and a transmission unit that transmits a response to the terminal, when the service corresponding to the request cannot be provided.
17 Citations
24 Claims
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1. A communication apparatus in a home network comprising:
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a receiver configured to receive a session establishment request from a terminal, the terminal being registered in an IMS (IP (Internet Protocol) Multimedia Subsystem) in the home network and located in a visited network; a receiver configured to receive first information from a management apparatus managing a policy and a charging rule, the first information related to identify the visited network in which the terminal is located; a controller configured to access a database to obtain second information related to emergency numbers for the visited network corresponding to the first information; and a transmitter configured to send a response to the terminal, the response indicating a rejection of the session establishment request in response to detection of the session establishment request for an emergency session, the detection being based on the second information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A terminal comprising:
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a transmitter configured to send a session establishment request to a communication apparatus in a home network, the terminal being registered in an IMS (IP (Internet Protocol) Multimedia Subsystem) in the home network and being located in a visited network; a receiver configured to receive a response from the communication apparatus, the response indicating a rejection of the session establishment request in response to detection of the session establishment request for an emergency session corresponding to the visited network; and a controller configured to select a domain for the emergency session based on the response and information related to whether a domain is available to the terminal. - View Dependent Claims (11, 12, 13, 14)
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15. A communication method by a communication apparatus, comprising:
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receiving a session establishment from a terminal, the terminal being registered in an IMS (IP (Internet Protocol) Multimedia Subsystem) in the home network and being located in a visited network; receiving first information from a management apparatus managing a policy and a charging rule, the first information related to identify the visited network in which the terminal is located; accessing a database to obtain second information related to emergency numbers for the visited network corresponding to the first information; and transmitting a response to the terminal, the response indicating a rejection of the session establishment request in response to detection of the session establishment request for an emergency session, the detection being based on the second information. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A communication method by a terminal, comprising:
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transmitting a session establishment request to a communication apparatus in a home network, the terminal being registered in an IMS (IP (Internet Protocol) Multimedia Subsystem) in the home network and being located in a visited network; receiving a response from the communication apparatus, the response indicating a rejection of the session establishment request in response to detection of the session establishment request for an emergency session corresponding to the visited network; and selecting a domain for the emergency session based on the response and information related to whether a domain is available to the terminal. - View Dependent Claims (22, 23, 24)
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Specification