发明名称 |
METHOD FOR DETERMINING PRECODING MATRIX, COMMUNICATION METHODS AND DEVICES THEREOF |
摘要 |
<p>A method for determining precoding matrix for the sub-band precoding in a transmitter, wherein the transmitter has M transmitting antennas, and the method comprises : a. determining anoptimized first matrix W1 according to wideband and/or long-term channel properties, with the first matrix W1 corresponding to wideband and/or long-term channel properties; b. multiplying the optimized first matrix W1, with each second matrix W2, in a second codebook, so as to obtain a plurality of candidate precoding matrices, the second matrix W2 corresponds to frequency-selective and/or short-term channel properties; c. selecting an optimized one from the plurality of candidate preceding matrices for precoding the data to be transmitted, according to a frequency selection and/or a short-term channel state information; characterized in that, the amount of DFT beams is increased to improve the spatial resolution; a diagonal matrix is involved in said first matrix W1; and phrase adjustment is involved in said second matrix W2, so as to guarantee the adjusted phrase is evenly distributed among the whole phrase space.</p> |
申请公布号 |
WO2012035425(A1) |
申请公布日期 |
2012.03.22 |
申请号 |
WO2011IB02294 |
申请日期 |
2011.08.24 |
申请人 |
ALCATEL LUCENT;WU, LU;CHEN, JINHUI;SONG, YANG;YANG, HONGWEI;LV, DI;LIU, HAO |
发明人 |
WU, LU;CHEN, JINHUI;SONG, YANG;YANG, HONGWEI;LV, DI;LIU, HAO |
分类号 |
H04J1/06;H04B7/06 |
主分类号 |
H04J1/06 |
代理机构 |
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