Method and apparatus for scheduling multi-user in wireless communication system using multiple transmit/receive antenna

The present invention in a mobile communication system using the MIMO supporting multiple users on the Robust eigenvalue based scheduling method and apparatus of the spatial correlation. The user terminal transmitting side eigen having a maximum value depending on the number of transmitting antennas and estimating a channel characteristic between a user terminal, extracts the transmission-side channel characteristics from the estimated channel characteristic, and the extracted transmission-side channel characteristic of a base station the vector is fed back to the base station. The base station configure the user pre-coding matrix by selecting the user terminal a predetermined number of correlation is the minimum by using the eigen vector fed back from each of a plurality of user terminals, and the combination of the eigen vectors of the selected user terminals, and the data stream to be transmitted to the selected user terminals by multiplying the user pre-coding matrix transmits the data to the plurality of transmission antennas. MIMO, MULTIPLE USER, USER PRECODER MATRIX, PRINCIPLE EIGEN VECTOR, PRINCIPLE EIGEN VALUE