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    • 45. 发明公开
    • METHOD AND DEVICE FOR DETERMINING PRECODING INFORMATION FOR UPLINK MULTI-ANTENNA TRANSMISSION
    • VERFAHREN UND VORRICHTUNG ZUR FESTLEGUNG VONPRÄKODIERUNGSINFORMATIONENFÜRUPLINK-MEHRANTENNEN-ÜBERTRAGUNGEN
    • EP2587704A4
    • 2017-05-17
    • EP11798376
    • 2011-06-22
    • LG ELECTRONICS INC
    • KO HYUNSOOCHUNG JAEHOONLEE MOONIL
    • H04L1/18H04B7/0404H04B7/0456H04L1/00H04L27/26
    • H04B7/0456H04B7/0404H04L1/0027H04L1/1812
    • The present invention relates to a wireless communication system, and more particularly, to a method and a device for determining precoding information for an uplink multi-antenna transmission. According to one embodiment of the present invention, a method for allowing a terminal to transmit uplink data through an HARQ method in a wireless communication system that supports MIMO transmission comprises the steps of: transmitting a plurality of data blocks to a base station on the basis of an uplink grant; receiving, from the base station, control information which indicates a NACK for some data blocks among the plurality of data blocks; selecting, according to a predetermined rule shared in the terminal and the base station, a precoding matrix which is to be applied to the data blocks for which the NACK is indicated; and retransmitting the data blocks, for which the NACK is indicated, to the base station by applying the selected precoding matrix.
    • 用于确定上行链路多天线传输的预编码信息的方法和设备技术领域本发明涉及无线通信系统,更具体地, 根据本发明的一个实施例,一种用于允许终端在支持MIMO传输的无线通信系统中通过HARQ方法传输上行链路数据的方法包括以下步骤:在基础上向基站传输多个数据块 的上行链路授权; 从所述基站接收指示所述多个数据块中的一些数据块的NACK的控制信息; 根据所述终端和所述基站共享的预定规则,选择待应用于所述NACK指示的数据块的预编码矩阵; 以及通过应用所选择的预编码矩阵向基站重传为其指示了NACK的数据块。