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Method and system for locating a mobile terminal

  • US 8,825,088 B2
  • Filed: 12/27/2001
  • Issued: 09/02/2014
  • Est. Priority Date: 12/27/2001
  • Status: Expired due to Fees
First Claim
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1. A method of locating a mobile terminal in a cellular network, whereina gateway node receives a service request including an internet protocol multimedia subsystem (IMS) identity of an IMS system, accesses a database storing a first routing information of said mobile terminal based on said IMS identity;

  • uses said first routing information to access a subscriber database in order to derive,a second routing information and a cellular identity of said mobile terminal; and

    initiates a location service of said cellular network based on said derived second routing information and cellular identity, andall public IMS identities known in said subscriber database are returned to said gateway node so that any further location requests with other identities would not require a subscriber database query as long as a location result exists in said gateway node.

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