Patent ID: 8600294

Claim:
An uplink signal weighted processing method, comprising: acquiring a first channel impulse response from a Mobile Station (MS) to a relay station, and a second channel impulse response from the relay station to a Base Station (BS); determining a relay weight and a demodulation weight according to the first channel impulse response and the second channel impulse response, wherein determining the relay weight and the demodulation weight comprises determining an iterative initial value of the relay weight; and sending the relay weight to the relay station and sending the demodulation weight to the BS, so as to enable the relay station to perform weighted processing on an MS uplink signal received by the relay station according to the relay weight to obtain an uplink relay weighted signal and to send the uplink relay weighted signal to the BS, and so as to enable the BS to perform demodulation weighted processing on the uplink relay weighted signal received by the BS according to the demodulation weight to obtain an uplink estimation signal corresponding to the MS uplink signal, wherein determining the relay weight and the demodulation weight further comprises: determining a threshold value of an uplink Signal to Noise Ratio (SINR); determining an iterative initial value of the demodulation weight according to the iterative initial value of the relay weight, the threshold value of the uplink SINR, the first channel impulse response and the second channel impulse response; determining an iterative value of the relay weight of the time when the threshold value of the uplink SINR is reached and a total transmission power of a plurality of relay stations is minimum according to the iterative initial value of the demodulation weight; determining an iterative value of the demodulation weight according to the iterative value of the relay weight, the threshold value of the uplink SINR, and the second channel impulse response; redetermining an iterative value of the relay weight of the time the threshold value of the uplink SINR is reached and a total transmission power of the plurality of relay stations is minimum according to the iterative value of the demodulation weight; redetermining an iterative value of the demodulation weight according to the redetermined iterative value of the relay weight, the threshold value of the uplink SINR, and the second channel impulse response; and repeating redetermining an iterative value of the relay weight and redetermining an iterative value of the demodulation weight until a minimal value of the total transmission power of the plurality of relay stations is converged into a fixed value thereby determining respectively a final iterative value of the relay weight and a final iterative value of the demodulation weight of the time the minimal value of the total transmission power of the plurality of relay stations is converged into a certain fixed value as the relay weight and the demodulation weight.