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ENHANCING LOCATION ACCURACY USING MULTIPLE SATELLITE MEASUREMENTS BASED ON ENVIRONMENT

  • US 20110068977A1
  • Filed: 09/23/2009
  • Published: 03/24/2011
  • Est. Priority Date: 09/23/2009
  • Status: Active Grant
First Claim
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1. A method for determining a location of a wireless device in a communications network, the method comprising the steps of:

  • (a) receiving a request for satellite assistance data from a requesting entity;

    (b) determining a reference location as a function of the request;

    (c) identifying one or more characterizing attributes as a function of the reference location;

    (d) determining a set of satellites as a function of the reference location;

    (e) determining whether more than one set of signal measurements should be acquired from one or more satellites in the set of satellites as a function of the identified one or more characterizing attributes;

    (f) acquiring the one or more sets of signal measurements; and

    (g) determining a location of the wireless device from the acquired measurements.

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