Patent ID: 7502419

Claim:
A method of communicating in a Multi-Input/Multi-Output (MIMO) communication system having M transmission antennas at a transmitting side, comprising: receiving, at the transmitting side, a plurality of channel status information corresponding to M transmission data streams in the MIMO system; determining a common modulation scheme to use for all of the M transmission data streams based on the plurality of channel status information at the transmitting side of the MIMO communication system, wherein determining the common modulation scheme calculates an average value of the plurality of channel status information, and selects the modulation scheme that produces the calculated average value to use as the common modulation scheme; modulating all of the M transmission data streams using the determined common modulation scheme at the transmitting side of the MIMO communication system; and transmitting all of the M transmission data streams via the M transmission antennas to a receiving side of the MIMO communication system, wherein each of the M data streams corresponds to each of the M transmission antennas, respectively.