阅读说明：本技术 用于数据传输的方法、装置和系统 (Method, device and system for data transmission ) 是由 吴晔 金黄平 韩玮 毕晓艳 于 2018-06-20 设计创作，主要内容包括：本申请提供了一种用于数据传输的方法、装置和系统,能够提高数据传输的可靠性。该方法应用于包含有网络设备和终端设备的通信系统中,网络设备和终端设备预先保存有多个预编码矩阵,该方法包括：终端设备接收用于信道测量的多个参考信号；该终端设备根据该至少一个参考信号和CSI反馈基于的传输方案,发送多个第一指示信息,该多个第一指示信息用于指示x个目标预编码矩阵,该多个第一指示信息中的至少一个第一指示信息用于指示一个目标预编码矩阵,该x个目标预编码矩阵是基于多个预编码矩阵确定,其中,x为需要反馈的目标预编码矩阵的数量,x为大于1的整数。(The application provides a method, a device and a system for data transmission, which can improve the reliability of data transmission. The method is applied to a communication system comprising network equipment and terminal equipment, wherein the network equipment and the terminal equipment pre-store a plurality of precoding matrixes, and the method comprises the following steps: the terminal equipment receives a plurality of reference signals for channel measurement; the terminal device sends a plurality of pieces of first indication information according to a transmission scheme based on the at least one reference signal and CSI feedback, wherein the plurality of pieces of first indication information are used for indicating x target precoding matrices, at least one piece of first indication information in the plurality of pieces of first indication information is used for indicating one target precoding matrix, and the x target precoding matrices are determined based on a plurality of precoding matrices, wherein x is the number of the target precoding matrices needing to be fed back, and x is an integer greater than 1.)