Patent ID: 7376094
Filing Date: 2008-05-20
Classification: H04B

Abstract:
1. A method for forming a forward channel pattern in a base station of a communication system equipped with an antenna array, comprising the steps of: generating complex correlation responses to a signal received by the antenna array in association with L different directions, respectively; calculating discrete values of an antenna pattern in a reverse channel in association with the L different directions, respectively; combining the generated complex correlation responses with the discrete values of an antenna pattern associated therewith, thereby generating decision functions associated with the L different directions, respectively; estimating, in association with the L different directions, angles of signal arrival at each of which an associated one of the generated decision functions has a maximum value; determining phase coefficients of elements of the antenna array, based on the estimated angles of signal arrival, respectively; estimating respective averages of the estimated signal angles by estimating top and bottom boundaries of angle signal areas for respective averaged estimate distribution vectors of the estimated signal arrival angles so that the average angles are used for the determination of the phase coefficients; and generating weight vectors of the antenna array in a forward channel using the determined phase coefficients.