METHOD AND APPARATUS FOR DEMODULATING RECEIVED SIGNALS IN CDMA BASE STATION RECEIVING SYSTEM HAVING ANTENNA ARRAY

摘要

PURPOSE: A method and an apparatus for demodulating received signals in a CDMA base station receiving system having an antenna array are provided to improve the performance of demodulation by applying an optimum weight vector, calculated at the signal processing apparatus of a CDMA base station receiving system having an antenna array, to the operation processing of a walsh demodulation signal vector. CONSTITUTION: A CDMA base station receiving system having an antenna array weights a walsh demodulation signal vector, the output of a walsh demodulator, using a weight vector for the present snapshot and yields an array output signal corresponding to each walsh word. The system selects and provides an index having the maximum size among the output signals. Then the system updates a weight vector value for the received signal processing at the next snapshot using a walsh demodulation signal vector corresponding to the selected index.