公开(公告)号：US09722821B2

公开(公告)日：2017-08-01

申请号：US14661876

申请日：2015-03-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Gong Zhang ,  Xun Yang ,  Pei Xiao ,  Zihuai Lin

IPC: H04L25/03 ,  H04B7/04 ,  H04B7/06 ,  H04L1/00 ,  H04L25/02 ,  H04L27/02 ,  H04L27/20 ,  H04L27/34 ,  H04J11/00 ,  H04L1/06 ,  H04L1/12

CPC classification number: H04L25/03159 ,  H04B7/0434 ,  H04B7/0465 ,  H04B7/0617 ,  H04J11/0063 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0036 ,  H04L1/0073 ,  H04L1/0606 ,  H04L25/0204 ,  H04L25/03343 ,  H04L25/03968 ,  H04L27/02 ,  H04L27/2082 ,  H04L27/34 ,  H04L2001/125

Abstract: A precoding method, a precoding apparatus, a Frequency Domain Equalization (FDE) method, and an FDE apparatus are provided in the embodiments of the present invention. The precoding method includes: performing offset modulation for a transmitting signal vector; calculating a precoding matrix according to the offset-modulated transmitting signal vector and a receiver decision signal vector, where the precoding matrix is used for performing precoding for the transmitting signal vector; and performing precoding for the transmitting signal vector according to the precoding matrix. Linear precoding is performed by using the offset-modulated signal on the transmitter, and therefore, the interference caused by multiple antennas and multipath propagation is reduced, the system BER is reduced, and the complexity of implementation is low.