Informing a lawful interception system of the serving system an intercepted target
First Claim
1. A method for informing a lawful interception system of the serving system serving an intercepted target (MS) roaming within a communication network system, the communication network system comprising:
- at least one serving system each serving system comprising at least one serving system node (SGSN) serving the intercepted target for communication, the method comprising the steps of;
first detecting a serving system node change request (1.) from the intercepted target (MS) towards a new serving system node which is currently not serving the target, first processing said serving system node change request at said new serving system node currently not serving the target, wherein said processing comprises the inclusion, to the request, of a serving system address of the new serving system node currently not serving the target, and first forwarding said processed request (2.) to an old serving system node currently serving the target.
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Accused Products
Abstract
The present invention proposes a method for informing a lawful interception system of the serving system serving an intercepted target (MS) roaming within a communication network system, the communication network system comprising at least one serving system each serving system comprising at least one serving system node, (SGSN) serving the intercepted target for communication, the method comprising the steps of first detecting a serving system node change request (1.) from the intercepted target (MS) towards a new serving system node which is currently not serving the target, first processing said serving system node change request at said new serving system node currently not serving the target, wherein said processing comprises the inclusion, to the request, of a serving system address of the new serving system node currently not serving the target, and first forwarding said processed request (2.) to an old serving system node currently serving the target. Also, the present invention proposes a serving system node adapted to be used in such a method.
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Citations
13 Claims
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1. A method for informing a lawful interception system of the serving system serving an intercepted target (MS) roaming within a communication network system, the communication network system comprising:
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at least one serving system each serving system comprising at least one serving system node (SGSN) serving the intercepted target for communication, the method comprising the steps of;
first detecting a serving system node change request (1.) from the intercepted target (MS) towards a new serving system node which is currently not serving the target, first processing said serving system node change request at said new serving system node currently not serving the target, wherein said processing comprises the inclusion, to the request, of a serving system address of the new serving system node currently not serving the target, and first forwarding said processed request (2.) to an old serving system node currently serving the target. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A serving system node of a serving system, the serving system node being adapted to serve an intercepted target (MS) for communication, and being connectable to a lawful interception system, the serving system node comprising:
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first detection means adapted for first detecting a serving system node change request (1.) from the intercepted target (MS), first processing means adapted for first processing said serving system node change request, wherein said processing is adapted to include, to the request, a serving system address of the serving system node, and first forwarding means adapted for first forwarding said processed request (2.) to another serving system node currently serving the target. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification