Patent ID: 8180365

Claim:
A method for identifying a geographic area having undesirable wireless service, the method comprising: collecting call detail logs (CDL) of each call for each of a plurality of subscriber units; collecting location information for at least one base transceiver station (BTS); estimating a call start location of each subscriber unit of the plurality of subscriber units based on information included in the CDL; associating the CDL of each call with the call start location of an associated subscriber unit of the plurality of subscriber units; creating a plurality of bins, each bin of the plurality of bins being associated with a geographical area having two or more subscriber units; associating the call start location of each subscriber unit of the plurality of subscriber units with a bin of the plurality of bins; determining one or more of a dropped calls metric for each bin of the plurality of bins based on the information included in the CDL's of the two or more subscriber units associated with the bin; generating a cumulative distribution across all bins associated with the call start location based on one or more of the dropped calls metrics; and generating a threshold for filtering the bins associated with the call start location based on the cumulative distribution.