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Method and system for providing location measurement of network based to mobile communication terminal by using G-pCell database

  • US 8,073,466 B2
  • Filed: 05/29/2007
  • Issued: 12/06/2011
  • Est. Priority Date: 11/07/2006
  • Status: Active Grant
First Claim
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1. A method for providing a mobile communication terminal with network-based location measurement by using a G-pCell database, the method comprising the steps of:

  • (a) receiving a location measurement request signal from the mobile communication terminal by an SUPL (Secure User Plane Location) positioning center;

    (b) extracting a primary G-pCell candidate group from the G-pCell database by using measurement data contained in the location measurement request signal received from the mobile communication terminal;

    (c) extracting a secondary G-pCell candidate group from the primary G-pCell candidate group by excluding G-pCell IDs from the primary G-pCell candidate group, the G-pCell IDs having a distance equal to or larger than a predetermined value relative to location of the mobile communication terminal;

    (d) selecting a G-pCell ID having best pattern matching with the measurement data from the secondary G-pCell candidate group; and

    (e) transmitting a latitude and a longitude of the G-pCell ID selected in step (d) to the mobile communication terminal.

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