Patent ID: 7450532

Claim:
A method for transmitting/receiving data for use as feedback information in a singular value decomposition multi input multi output (SVD-MIMO) mobile communication system, the method comprising the steps of: determining eigenvectors using a singular value decomposition (SVD) of a channel matrix, selecting at least one eigenvector from among the eigenvectors using at least one of noise and error probability of received data, generating transmission eigenvector selection information included in the selected at least one eigenvector, and feedbacking the transmission eigenvector selection information to a transmitter; and receiving the feedback transmission eigenvector selection information, selecting transmission data according to the received transmission eigenvector selection information, mapping the selected transmission data to at least one transmission antenna, and transmitting the transmission data to a receiver; wherein the determined transmission eigenvector selection information is determined by, P e , j = Q ⁡ ( d min 2 ⁢ ( σ n / λ j ) ) < th wherein P e,j denotes error probability, d min represents the shortest distance in a signal space of transmission data. σ n denotes variance value of channel, Q denotes Q function, and th denotes predetermined threshold.