公开(公告)号：WO2016029394A1

公开(公告)日：2016-03-03

申请号：PCT/CN2014/085359

申请日：2014-08-28

Applicant: SOUTHEAST UNIVERSITY

Inventor： GAO, Xiqi ,  MENG, Xin ,  ZHONG, Wen

IPC: H04L5/00

CPC classification number: H04W16/28 ,  H04B7/0408 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0465 ,  H04B7/0617 ,  H04B7/0669 ,  H04L1/00 ,  H04L1/0042 ,  H04L1/0668 ,  H04L25/03898

Abstract: Described herein is an omni-directional transmission scheme allowing signals to transmit from a base station to multiple users in massive MIMO systems with reduced pilot overhead and system complexity. The transmission scheme uses a low-dimensional space-time coding scheme to generate a K-dimensional vector signal, and based on the K-dimensional vector signal, using an omni-directional precoding matrix W to generate an M-dimensional vector signal for transmission over a large number of transmitting antennas, wherein the matrix W comprises M rows and K columns, and K is much smaller than M.

Abstract translation: 这里描述的是一种全方位传输方案，允许信号在大量MIMO系统中从基站向多个用户发送，具有降低的导频开销和系统复杂度。 传输方案使用低维空时编码方案来生成K维向量信号，并且基于K维向量信号，使用全向预编码矩阵W生成用于传输的M维向量信号 通过大量发射天线，其中矩阵W包括M行和K列，并且K远小于M。