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Database update method and apparatus for locating a pCell

  • US 9,348,032 B2
  • Filed: 03/31/2011
  • Issued: 05/24/2016
  • Est. Priority Date: 04/02/2010
  • Status: Active Grant
First Claim
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1. A database update apparatus for pCell location determination, the apparatus comprising:

  • a database configured to store a plurality of pCell parameters extracted from signal of base stations associated with grid cells of mobile communication network that are classified by pCell ID;

    a DB collection unit configured to collect log data of WLAN signals from a mobile communication terminal having a WLAN module, wherein the WLAN module performs a communication with an AP (Access Point) using the WLAN signals;

    an information extraction unit configured to extract WLAN parameters from the log data; and

    a DB update unit configured to update the database by storing the extracted WLAN parameters with pCell ID as the pCell parameters on a corresponding grid cell in the database,wherein the pCell ID is identified based on PSC (Primary Scrambling Code) and a base station sector number (Ref_PN) for a base station located in an area, andwherein the pCell parameters includes at least one of system ID, network ID, base station ID, the base station sector number (Ref_PN), pilot phase and signal strength of in the base station sector number (Ref_PN), a neighboring base station sector number (measurement PN), and pilot phase in the measurement PN.

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