Positioning with wireless local area networks and WLAN-aided global positioning systems

  • US 10,212,540 B2
  • Filed: 08/21/2017
  • Issued: 02/19/2019
  • Est. Priority Date: 02/14/2003
  • Status: Active Grant
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First Claim
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1. A wireless device comprising:

  • a wireless local area network (WLAN) baseband configured to;

    receive decoded global positioning system (GPS) data from one or more access points in a communication system;

    a GPS baseband configured to;

    identify a first GPS satellite based at least in part on the decoded GPS data;

    acquire a GPS signal from the first GPS satellite; and

    determine frequency offsets for other GPS satellites based at least in part on the acquired GPS signal; and

    wherein the GPS baseband comprises;

    a plurality of correlators configured to operate in parallel to acquire the GPS signal from the first GPS satellite, wherein each pair of correlators includes an in-phase correlator and a quadrature correlator.

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