Transmission antenna diversity method base station apparatus and mobile station apparatus therefor in mobile communication system

摘要

PURPOSE: A transmission antenna diversity method in a mobile communication system and a BTS(Base Transceiver Station) and MS(Mobile Station) therefor are provided to resolve power unbalance between antennas by using a complex number basic vector aggregation when expanding antenna selection to a basic vector selection region. CONSTITUTION: A data receiving process unit(350) decodes a signal received through an antenna(300) and recovers transmission data. A transmission antenna diversity channel information measuring unit(310) measures channel information from the signal received through the antenna(300) and outputs measured channel information as a matrix type. A basic vector modifies the channel information matrix outputted from the transmission antenna diversity channel information measuring unit(310) using a modification matrix formed as a predetermined complex number basic vector aggregation. An optimum weight value detecting unit(330) detects an element of the complex number basic vector aggregation in which a receipt measuring power is maximized to a plurality of antennas using the modified channel information matrix. A feedback information uplink signal process unit(340) transmits the detected result as feedback information for adjusting a transmission antenna diversity to a transmitting device through the antenna(300).