Patent ID: 6483866
Filing Date: 2002-11-19
Classification: H04B,H04L

Abstract:
A receiver for a mobile station which receives, from a base station in each of N adjacent zones, a modulated wave obtained by framing N pseudo-orthogonal signal sequences resulting from a transformation of a same signal and added with orthogonal training signals and selectively outputs the signal sequence transmitted from a desired base station, N being an integer equal to or greater than 2, comprising:N antennas (ANT-R1, ANT-R2) provided at different positions from one another for receiving transmitted waves from base stations and producing a combined wave signal of the transmitted waves; N radio frequency receivers (19R1, 19R2) each for receiving the combined wave signal from corresponding one of said N antennas and producing a received signal; and N weighted addition means 21W11, 21W12, 21W21, 21W22, 22A1, 22A2) for generating N weighted added values for N received signals from said N antennas; N decision means 24D1, 24D2) for determining levels of outputs from said N weighted addition means and outputting said received signals; pattern holding means (27G1, 27G2) for holding training signal patterns peculiar to said N adjacent zones; N subtracting means (23E1, 23E2) each for obtaining the difference between the output from one of said weighted addition means and said training signal patterns from one of said pattern holding means during the reception of said training signal in said received signal; and N control means (25C1, 25C2) for determining a weighting factor of said N weighted addition means which minimizes said difference, during the training signal receiving period.