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Locating packet-switched mobile terminals using network initiated artificial cell hops

  • US 20030119524A1
  • Filed: 12/22/2001
  • Published: 06/26/2003
  • Est. Priority Date: 12/22/2001
  • Status: Active Grant
First Claim
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1. A method of determining the position of a wireless mobile terminal comprising:

  • determining a first timing advance between the mobile terminal and a first base station based on packet-switched communications therebetween;

    instructing said mobile terminal to artificially change from said first base station to a second base station, and thereafter determining a second timing advance between said mobile terminal and said second base station;

    receiving indications of the signal strengths of signals from at least third and fourth base stations received at said mobile terminal;

    determining the location of said mobile terminal based on said first timing advance, said second timing advance, and said signal strengths.

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