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Routing an incoming call to a ported mobile station within a telecommunications network

  • US 5,839,072 A
  • Filed: 06/03/1996
  • Issued: 11/17/1998
  • Est. Priority Date: 03/26/1996
  • Status: Expired due to Term
First Claim
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1. A method for retrieving subscriber information associated with a mobile station, said mobile station being assigned to a particular home location register (HLR), said particular HLR storing said subscriber information associated with said mobile station, said method comprising the steps of:

  • transmitting a first signal with a mobile station identification number from a telecommunications exchange to a centralized database, said first signal requesting a first network address representing said particular HLR;

    determining said first network address by indexing on said mobile station identification number within said centralized database;

    transmitting said determining first network address back to said telecommunications exchange;

    transmitting a second signal from said telecommunications exchange to a gateway mobile switching center (GMSC) associated with said determined first network address;

    transmitting a third signal from said GMSC to said particular HLR using said determined first network address, said third signal requesting said subscriber information from said HLR;

    retrieving said subscriber information in response to a reception of said third signal by said HLR; and

    transmitting said retrieved subscriber information associated with said mobile station back to said GMSC.

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