Patent ID: 9154358
Filing Date: 2015-10-06
Classification: H04B,H04L

Abstract:
1. A wireless communication device for determining a reference signal on the basis of correlation values between a received signal and a plurality of standard signals and calculating an antenna weight by using said reference signal, said device comprising: a standard signal holding unit for holding said plurality of standard signals; a correlation value calculation unit for performing a correlation operation between said received signal and said plurality of standard signals; and a reference signal selection unit for determining said reference signal from among said plurality of standard signals on the basis of a correlation operation result obtained by said correlation value calculation unit, wherein said plurality of standard signals are generated by shifting a head position of a data part of a known signal at a predetermined symbol interval, and said reference signal selection unit repeats a predetermined number of times, a process of performing a correlation operation between a new standard signal which is generated so that a head of said data part is located at some midpoint in said predetermined symbol interval and said received signal when a correlation value peak which provides a maximum value is not detected among a plurality of correlation values obtained by said correlation operation between said received signal and said plurality of standard signals, and wherein said reference signal selection unit determines a standard signal that provides said correlation value peak as a provisional reference signal and corrects said provisional reference signal by shifting said provisional reference signal by the amount of symbol shift calculated on the basis of the amount of phase rotation of said received signal, to thereby determine a reference signal obtained after correction as said reference signal when said correlation value peak is less than a preset threshold value.