Method And Apparatus For Handling Emergency Calls
First Claim
1. A method, of obtaining location information for a subscriber currently connected to an IP access network at a certain point of access, the method executed in a session managing node of a multimedia service network and comprising the following steps:
- receiving a request from said subscriber containing an IP address currently assigned to the subscriber when connected to said point of access,sending a location query for the subscriber including said IP address to the IP access network, andreceiving location information for said point of access of the subscriber in response to the location query, thereby enabling supply of the received location information to an emergency centre in connection with an emergency call from said subscriber.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus for obtaining location information for subscribers connected to an IP access network (300), in order to enable supply of such location information in connection with emergency calls directed to a multimedia service network (302). A request is received (3:1) at the multimedia service network from a subscriber (A) containing an IP address currently assigned to the subscriber. In response thereto, the multimedia service network sends a location query (3:2) including said IP address to the IP access network, which then can retrieve (3:3, 3:4) location information for the subscriber based on the IP address, by determining at which point of access in the IP access network the IP address is currently used. The IP access network then submits (3:5) the obtained location information to the multimedia service network in response to the location query.
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Citations
28 Claims
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1. A method, of obtaining location information for a subscriber currently connected to an IP access network at a certain point of access, the method executed in a session managing node of a multimedia service network and comprising the following steps:
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receiving a request from said subscriber containing an IP address currently assigned to the subscriber when connected to said point of access, sending a location query for the subscriber including said IP address to the IP access network, and receiving location information for said point of access of the subscriber in response to the location query, thereby enabling supply of the received location information to an emergency centre in connection with an emergency call from said subscriber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An arrangement in a session managing node of a multimedia service network, for obtaining location information for a subscriber currently connected to an IP access network at a certain point of access, the arrangement comprising:
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means for receiving a request from said subscriber containing an IP address currently assigned to the subscriber when connected to said point of access, means for sending a location query for the subscriber including said IP address to the IP access network, and means for receiving location information for said point of access of the subscriber in response to the location query, thereby enabling supply of the received location information to an emergency centre in connection with an emergency call from said subscriber. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 20)
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17. A method, executed in an IP access network. of providing location information to a session managing node of a multimedia service network for a subscriber currently connected to said IP access network at a certain point of access, the method comprising the following steps:
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receiving a location query for said subscriber containing an IP address currently assigned to the subscriber when connected to said point of access, retrieving location information for said point of access of the subscriber based on said IP address, and providing the retrieved location information for the subscriber to said session managing node in response to the received location query. - View Dependent Claims (18, 19, 21, 22)
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23. A location retrieval unit in an IP access network for providing location information to a session managing node of a multimedia service network for a subscriber currently connected to said IP access network at a certain point of access, the location retrieval unit comprising:
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means for receiving a location query for said subscriber containing an IP address assigned to the subscriber when connected to said point of access, means for retrieving location information for said point of access of the subscriber based on said IP address, and means for providing the retrieved location information for the subscriber to said session managing node in response to the received location query. - View Dependent Claims (24, 25, 26, 27, 28)
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Specification