一种数据传输方法、用户设备和基站

Data transmission method, user equipment and base station

Abstract

本发明实施例公开了一种数据传输方法、用户设备和基站,该方法可包括:接收基站发送的第一参考信号集;基于第一参考信号集和码字到层的第一映射得到包括秩指示RI和信道质量指示CQI的CSI,并向基站发送CSI;接收基站发送的第二参考信号集;基于第二参考信号集和码字到层的第二映射接收基站发送的数据,其中,码字到层的第一映射中至少一个码字映射的层数比码字到层的第二映射中码字映射的层数要少。本发明实施例可以提高传输数据时采用的MCS的精度,以及提高通信系统的吞吐量。
Disclosed in an embodiment of the present invention are a data transmission method, user equipment and base station, the method comprising: receiving a first reference signal set transmitted by a base station; obtaining a CSI including a rank indication RI and a channel quality indicator CQI based on the first reference signal set and a first codeword-to-layer mapping, and transmitting the CSI to the base station; receiving a second reference signal set transmitted by the base station; receiving data transmitted by the base station based on the second reference signal set and a second codeword-to-layer mapping, the number of layers mapped to at least one codeword in the first codeword-to-layer mapping is less than the number of layers mapped to a codeword in the second codeword-to-layer mapping. The embodiment of the present invention can improve MCS precision employed for data transmission, and improve the throughput of a communication system.

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