Patent ID: 6338031
Filing Date: 2002-01-08
Classification: H04B,H04W

Abstract:
A method for modeling a communications system comprising a transmitter having an antenna and a receiver having an antenna located at a distant location from the transmitter antenna, comprising the steps of:determining a line-of-sight signal strength between the transmitter antenna and the receiver antenna; and computing enhancements and degradations to the line-of sight signal strength from at least one structure between the transmitter antenna and the receiver antenna; wherein the computing step further comprises the step of computing a strength Pr of a signal received at the receiver antenna from the transmitter antenna, wherein the strength Pr is computed as: Pr=Pt+Gtâˆ’Llosâˆ’Lroomâˆ’Loutside+Gr where:Pr is a signal strength at the receiver antenna, Pt is a transmitter power, Gt is a transmitter antenna gain, Llos is a loss under line of sight, Lroom is a loss due to intra-building effects, Loutside is a loss due to inter-building effects, and Gr is a receiver antenna gain.