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    • 8. 发明申请
    • METHOD AND DEVICE FOR FEEDING BACK PRE-CODING MATRIX INDEX OF DUAL-POLARIZED ANTENNA
    • 用于馈送双极化天线的反向预编码矩阵索引的方法和装置
    • WO2011110064A1
    • 2011-09-15
    • PCT/CN2011/071114
    • 2011-02-21
    • PANASONIC CORPORATIONTONG, HuiXU, MingHOSHINO, MasayukiIMAMURA, Daichi
    • TONG, HuiXU, MingHOSHINO, MasayukiIMAMURA, Daichi
    • H04B7/02
    • H04B7/0636H04B7/0469H04B7/0634H04B7/0639H04B7/065H04B7/10
    • There is provied a method and device for feeding back a pre-coding matrix index of a dual-polarized antenna which has a first antenna array and a second antenna array and is arranged at a base station to which the index of a first pre-coding matrix for the first antenna array, the index of a second pre-coding matrix for the second antenna array and the phase offset between the first pre-coding matrix and the second pre-coding matrix are fed back from a terminal, comprising: computing a distance between the first pre-coding matrix and the second pre-coding matrix; judging whether the distance is larger than a predetermined threshold or not; and assigning less bits to indicate the phase offset if the distance is larger than the predetermined threshold. The method and device according to the present disclosure can effectively advance the feedback accuracy of a system thus improving the bit error rate and throughput of the system.
    • 已经提出了一种用于反馈具有第一天线阵列和第二天线阵列的双极化天线的预编码矩阵索引的方法和装置,并且被布置在基站,第一预编码的索引 用于第一天线阵列的矩阵,用于第二天线阵列的第二预编码矩阵的索引和第一预编码矩阵与第二预编码矩阵之间的相位偏移从终端反馈,包括:计算 第一预编码矩阵和第二预编码矩阵之间的距离; 判断距离是否大于预定阈值; 并且如果距离大于预定阈值,则分配较少的比特来指示相位偏移。 根据本公开的方法和装置可以有效地提高系统的反馈精度,从而提高系统的误码率和吞吐量。