Invention Application
US20160087703A1 Method and Apparatus for Open Loop Transmission in a Multiple Antenna Wireless Communication System 审中-公开
多天线无线通信系统中开环传输的方法与装置

Method and Apparatus for Open Loop Transmission in a Multiple Antenna Wireless Communication System
Abstract:
The invention concerns a method for precoding in an open loop transmission communications system. The method includes precoding data at each of M REs with a precoding matrix, precoding each of DM-RSs with one column of a precoding matrix which is same as that used for precoding M data REs. The method is distinguished by using at least L≧2 different precoding matrices from a set of precoding matrices W to precode the M REs and the E allocated REs such that REs precoded with a first precoding matrix are interleaved with REs precoded with at least one additional, different precoding matrix and the number of used precoding matrices L is adapted to the transmission rank r and number N of available DM-RS.
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