HANDLING COMMUNICATION SESSIONS IN A COMMUNICATIONS NETWORK
First Claim
1. A method of handling a communication session in a communications network, the method comprising, at an Application Function node:
- receiving from a user terminal a request to register the user terminal in the communication network;
sending to a Policy and Charging Register Function a request message, the request message including an Access Point Name identifying an Access Point used by the user terminal;
receiving a response message from the Policy and Charging Register Function, the response message including an indicator indicating whether the Access Point is an Emergency-Access Point ;
receiving from the user terminal a message to establish a communication session with a terminating node, the message identifying a non-emergency terminating node;
in the event that the indicator indicates that the Access Point is not an Emergency-Access Point, allowing the establishment of the communication session and, in the event that the indicator indicates that the Access Point is an Emergency-Access Point, rejecting the establishment of the communication session.
1 Assignment
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Accused Products
Abstract
A method and apparatus for handling a communication session in a communications network. An Application Function node receives a request to register a user terminal in the communication network. The Application Function identifies an Access Point used by the terminal to register with the network, and send a request message to a Policy and Charging Register Function (PCRF). The request message includes an Access Point Name identifying an Access Point used by the user terminal. The AF receives a response message from the PCRF, including an indicator indicating whether the Access Point is an Emergency-Access Point. The AF subsequently receives a message from the user terminal that identifies a non-emergency terminating node. If the indicator indicates that the Access Point is not an Emergency-Access Point, the AF allows the communication session. If the indicator indicates that the Access Point is an Emergency-Access Point, then the AF rejects the communication session.
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Citations
14 Claims
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1. A method of handling a communication session in a communications network, the method comprising, at an Application Function node:
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receiving from a user terminal a request to register the user terminal in the communication network; sending to a Policy and Charging Register Function a request message, the request message including an Access Point Name identifying an Access Point used by the user terminal; receiving a response message from the Policy and Charging Register Function, the response message including an indicator indicating whether the Access Point is an Emergency-Access Point ; receiving from the user terminal a message to establish a communication session with a terminating node, the message identifying a non-emergency terminating node; in the event that the indicator indicates that the Access Point is not an Emergency-Access Point, allowing the establishment of the communication session and, in the event that the indicator indicates that the Access Point is an Emergency-Access Point, rejecting the establishment of the communication session. - View Dependent Claims (2, 3, 4, 5, 11, 13)
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6. An Application Function node for use in a communications network, the Application Function node comprising:
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a first receiver for receiving from a user terminal a request to register the user terminal in the communication network; a first transmitter for sending to a Policy and Charging Register Function a request message, the request message including an Access Point Name identifying an Access Point used by the user terminal; a second receiver for receiving a response message from the Policy and Charging Register Function, the response message including an indicator indicating whether the Access Point is an Emergency-Access Point; a third receiver for receiving from the user terminal a message to establish a communication session with a terminating node, the message identifying a non-emergency terminating node; a processor arranged to determine whether the indicator indicates that the Access Point is an Emergency-Access Point and, in the event that the indicator indicates that the Access Point is not an Emergency-Access Point, allowing the establishment of the communication session and, in the event that the indicator indicates that the Access Point is an Emergency-Access Point, rejecting the establishment of the communication session. - View Dependent Claims (7, 8)
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9. A Policy and Charging Register Function node for use in a communications network, the Policy and Charging Register Function node comprising:
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a receiver for receiving from an Application Function node a request message, the request message including an Access Point Name identifying an Access Point used by a user terminal to register with the Application Function node; a transmitter for sending a response message to the Application Function node the response message including an indicator indicating whether the Access Point is an Emergency-Access Point.
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10. A method of operating a computer apparatus, the method comprising:
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receiving from an Application Function node a request message, the request message including an Access Point Name identifying an Access Point used by a user terminal to register with the Application Function node; sending a response message to the Application Function node, the response message including an indicator indicating whether the Access Point is an Emergency-Access Point. - View Dependent Claims (12, 14)
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Specification