Patent ID: 6438362
Filing Date: 2002-08-20
Classification: H04B,H04W

Abstract:
An apparatus for measuring characteristics of a propagated radio-wave on the basis of a reference signal, comprising:a plurality of signal-processing channels each including: obtaining means for obtaining a reference signal by demodulating the propagated radio-wave; estimating means for estimating characteristics of a propagation-path, through which said propagated radio-wave has been transmitted, on the basis of the reference signal; determining means for determining a first signal power of said propagated radio-wave on the basis of the estimated characteristics; calculating means for calculating a second signal power of said propagated radio-wave on the basis of a difference value between the estimated characteristics and the reference signal intensity; summing means for summing the first signal powers determined in said determining means within said plurality of signal-processing channels to obtain a first radio-wave characteristic; and averaging means for averaging the second signal powers calculated in said calculating means within said plurality of signal-processing channels to obtain a second radio-wave characteristic.