Patent ID: 8311142

Claim:
A self-adapting transmission scheme of a channel environment in a multi-antenna wireless transmission system, comprising: obtaining a statistical channel information at a receiving end using a result of a channel estimation, the statistical channel information comprising a Tx and Rx-correlated channel matrix, a spatial power flooding matrix, a number of distinguishable channel streams, and an online channel capacity; then, quantizing and encoding the obtained statistical channel information to get feedback bit information, and transmitting the feedback bit information to a transmitting end through a feedback channel; wherein the transmitting end calculates a plurality of link self-adapting control parameters from the statistical channel information, the statistical channel information further being used for controlling coding modulation and sending a pre-code; wherein the transmitting end obtains a digital base band transmission signal using a characteristic mode transmission method and a random virtual space selection transmission method, and the receiving end carries out self-adapting receiving using the same parameters; and the Tx and Rx-correlated channel matrix is determined by: R TX (T) =(1−β) R TX (cur) +βR TX (T-1) R RX (T) =(1−β) R RX (cur) +βR RX (T-1) where R TX (T) represents the Tx-correlated matrix for a current frame and R TX (T-1) represents the Tx-correlated matrix for the previous frame, R RX (T) represents the Rx-correlated matrix for the current frame and R RX (T-1) represents the Rx-correlated matrix for the previous frame, R TX (cur) represents an estimated Tx-correlated matrix with channel parameters in the current frame and R RX (cur) represents an estimated Rx-correlated matrix with the channel parameters in the current frame, and β is a forgetting factor, the spatial power flooding matrix is determined by eigenvalues of the Tx and Rx-correlated channel matrix, the number of distinguishable channel streams determined by the eigenvalues of Tx and Rx-correlated channel matrix, and the online channel capacity is determined by a channel condition and performance of a detector.