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Method and apparatus for providing location based services using connectivity graphs based on cell broadcast information

  • US 8,290,516 B2
  • Filed: 10/01/2009
  • Issued: 10/16/2012
  • Est. Priority Date: 10/01/2009
  • Status: Active Grant
First Claim
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1. A method comprising:

  • causing, at least in part, via a processor, receiving and storing in a memory a plurality of cell broadcast message identifiers;

    associating the plurality of cell broadcast message identifiers respectively with a plurality of cells;

    generating, based on the stored plurality of cell broadcast message identifiers, a connectivity graph specifying relationships among the plurality of cells for providing a location based service,wherein the plurality of cell broadcast message identifiers is provided by a plurality of mobile devices, andwherein storing the plurality of cell broadcast message identifiers comprises storing the plurality of cell broadcast message identifiers in a database of a service provider;

    receiving a query relating to the location based service;

    determining a path comprising one or more cells using the connectivity graph; and

    sending a response message comprising a plurality of area names corresponding to the cells in the path.

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