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Systems and methods for call analysis

  • US 8,140,067 B1
  • Filed: 01/03/2008
  • Issued: 03/20/2012
  • Est. Priority Date: 01/03/2008
  • Status: Expired due to Fees
First Claim
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1. A method of operating a computer system to process dropped-call data for a cell tower in a radio access network, the method comprising:

  • receiving and processing dropped-call data for the cell tower in the radio access network to determine an average geographic distribution of dropped-calls relative to the cell tower and to determine a current geographic distribution of dropped-calls relative to the cell tower;

    processing the average geographic distribution and the current geographic distribution to identify dropped-call differences at a plurality of geographic locations;

    processing the dropped-call differences to identify ones of the geographic locations that exceed a dropped-call difference threshold;

    processing a number of the geographic locations that exceed the dropped-call difference threshold to determine if the number of the geographic locations exceeds a distribution threshold and triggering an alarm if the number of the geographic locations exceeds the distribution threshold;

    wherein identifying the dropped-call differences comprises identifying rolling average differences.

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