Patent ID: 7117016
Filing Date: 2006-10-03
Classification: H04B

Abstract:
1. An adaptive antenna base station apparatus comprising: an array antenna including N (N being a natural number) antenna elements; N reception sections for respectively performing orthogonal detection of code-multiplexed high-frequency signals, respectively received by said antenna elements of said array antenna, after frequency conversion of said code-multiplexed high-frequency signals; N×M despreading sections for performing despreading operations, corresponding to delay times of M (M being a natural number) path components included in output signals of said reception sections, with respect to said output signals of said reception sections; M correlation computing sections for performing correlations among said antenna elements on output signals of said despreading sections for each path; a correlation combining section for combining output signals of said correlation computing sections; and a direction-of-arrival estimating section for estimating a direction of arrival by using an output of said correlation combining section.