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Wireless CPU GPS application

  • US 7,463,188 B1
  • Filed: 04/03/2007
  • Issued: 12/09/2008
  • Est. Priority Date: 04/03/2007
  • Status: Expired due to Fees
First Claim
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1. A wireless handset (102), comprising:

  • a wireless-CPU (120, 122, 124) that functions as a host processor and provides access to a satellite model server (114) through a local wireless cell base station (106) whose location has been previously logged into a breadcrumb database (226);

    a GPS chipset (132) connected to provide pseudorange measurements (134) to the wireless-CPU; and

    a GPS application (154) hosted by the wireless-CPU and for providing more rapid initial position solutions derived from said pseudorange measurements by requesting and receiving from said breadcrumb database (226) location information associated with a particular location area identifier (LAI) corresponding to said local wireless cell base station (106);

    wherein, the GPS application (154) adopts a particular z-count previously associated with the LAI for its cold start initialization and assumes a not-to-exceed (NTE) operational distance separation limitation between the wireless-CPU (120, 122, 124) and said wireless cell base station (106) is not being exceeded.

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