Patent ID: 7372830

Claim:
A resource allocation method in a multiple-input multiple-output/orthogonal frequency division multiple access (MIMO/OFDMA) system including a base station for transmitting signals through a plurality of transmitter antennas, and a plurality of terminals for receiving the signals through receiver antennas, the method comprising: determining, at the base station upon receipt of feedback information, at least one of a channel gain and transmission rate for each user terminal; computing an average channel gain for each said user terminal according to the determined channel gain; determining an average number of bits for each said user terminal using the determined average channel gain; determining a number of subchannels for each said user terminal according to the determined average number of bits for each said user terminal; and allocating a modulating scheme for each subchannel according to the determined number of subchannels; wherein the average channel gain is computed differently for each said user terminal according to one of a multiuser-MIMO/OFDMA environment, a multiuser-multiple-input single-output (MISO)/OFDMA environment, and a single-user MIMO/OFDMA environment.