Patent ID: 6173185
Filing Date: 2001-01-09
Classification: H04W

Abstract:
A method of determining the minimum geographic area from which RF samples must be received in order to determine the radius R of a wireless telecommunication system cell with a radius inaccuracy .DELTA.R, where .DELTA.R is a percentage of cell radius R, said cell including a base station transmitter, which comprises the steps of:partitioning said cell into a plurality of bins, each of said bins having a predetermined area;determining a minimum number N of samples necessary to determine said radius R with said radius inaccuracy .DELTA.R; and,multiplying said predetermined bin area by said minimum number N to determine said minimum geographic area wherein said step of determining a minimum number N of samples necessary to determine said radius R with said radius inaccuracy .DELTA.R includes the steps of:receiving RF samples at a plurality of locations:estimating coefficients A' and B for an equation P.sub.r =A'-Br.sub.L, wherein P.sub.r is the received power for a location a distance r from said transmitter and r.sub.L is log.sub.10 r; and,estimating a standard deviation .sigma. of lognormal fading for said received sample.