Wireless communication device and method of restraining dispersion of propagation environment index

摘要

A wireless communication device (10) capable of restraining dispersion of a propagation environment index and thereby improving throughput. A reception controller (11) receives a pilot signal, measures a propagation environment and detects a phase change of the pilot signal. A moving average processor (12) obtains a moving average of propagation environment values. An index function setter (13) generates a propagation environment index function indicative of the correspondence between the propagation environment value and a propagation environment index which is a propagation environment quality index. When the detected phase change is greater than a threshold, a slope corrector (14) corrects the slope of the propagation environment index function by using the moving average as a reference point, and a propagation environment index transmitter (15) obtains a propagation environment index corresponding to the measured propagation environment value by using the propagation environment index function whose slope has been corrected, and transmits the obtained index to a base station (20).