METHODS AND SYSTEMS FOR PROVIDING FEEDBACK FOR BEAMFORMING AND POWER CONTROL
摘要
<p>Methods and systems for providing feedback for beamforming and power control are provided. In some embodiments, the methods comprise: calculating a threshold associated with a subcarrier; receiving the subcarrier containing an information symbol at the receiver; determining a channel estimate of the subcarrier and a weighting vector for the information symbol; based at least on the channel estimate and the weighting vector, determining a power level of the subcarrier; comparing the power level to the threshold; generating a feedback signal indicating a first energy level to be used for the subcarrier based on the comparison; subsequent to generating the feedback signal, determining a second power level of the subcarrier; comparing the second power level to the threshold; and generating a second feedback signal to the transmitter indicating a second energy level to be used for the subcarrier.</p>
申请公布号
WO2008157724(A1)
申请公布日期
2008.12.24
申请号
WO2008US67546
申请日期
2008.06.19
申请人
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK;WANG, XIAODONG;MERLI, FILIPPO, ZUCCARDI