Patent ID: 7974601

Claim:
A method of creating a database with information on each of a plurality of substantially nonoverlapping ranges of frequencies of electromagnetic waves, in each of a plurality of geographic regions, the method comprising: receiving a first set of data containing information from a first plurality of mobile voice communications devices in a first geographic region, the information indicating an average power received for each range of the plurality of ranges by the plurality of mobile voice communications devices in the first geographic region; receiving a second set of data containing information from a second plurality of mobile voice communications devices in a second geographic region, the information indicating an average power received for each range of the plurality of ranges by the plurality of mobile voice communications devices in the second geographic region; maintaining the database with information associating a cost with each range of the plurality in the first geographic region, and associating a cost with each range of the plurality in the second geographic region, wherein the cost associated with one or more of the ranges is different in the first geographic region than in the second geographic region; and populating the database with data comprising the average power received for each range of the plurality of ranges in the first geographic region and each range of the plurality of ranges in the second geographic region.