Patent ID: 6424643
Filing Date: 2002-07-23
Classification: H04W

Abstract:
A process for modeling a CDMA cellular telephone system comprising the steps of:determining base stations likely to communicate with a mobile unit at each of a plurality of closely spaced locations defining all positions of some area of a CDMA system at which a mobile unit is likely to communicate with base stations utilizing data indicating received signal level at each location and associated transmit power of each base station throughout the area; determining the transmit power necessary for each base station to communicate effectively with a mobile unit at each location throughout the area; calculating interference levels at each base station by determining a level of decoded transmission necessary to provide a quality signal at each base station, multiplying the level of decoded transmission determined for each location by a probability of a base station serving the location, and summing results determined from the multiplications; repeating the forgoing steps of the process until transmit power for each base station does not change significantly from a preceding iteration of the process; then determining transmit power necessary for a mobile unit at each location to communicate with each base station which most probably communicates with a mobile unit at that particular location; and repeating the steps of the process for determining transmit power for each mobile unit until a total interference level at each base station does not change significantly from a preceding iteration of the process.