Method for assigning channels based on spatial division multiplexing in an orthogonal frequency division multiplexing system다중 송수신 안테나를 구비하는 직교주파수분할다중화 시스템에서 공간분할 다중화를 고려하여 채널할당을 수행하는 방법
A method for assigning a single frequency sub-channel to a plurality of MSs (Mobile Stations) in an OFDM (Orthogonal Frequency Division Multiplexing) system utilizing SDM (Spatial Division Multiplexing) with multiple transmit/receive antennas. In the method, a BS (Base Station) can effectively assign a pilot channel to estimate a downlink channel. The BS divides the single frequency sub-channel into a plurality of spatial channels, and sequentially assigns the plurality of spatial channels to the MSs having the maximum communication capacity, thereby transmitting signals of the MSs through the single frequency sub-channel.