公开(公告)号：US20190013846A1

公开(公告)日：2019-01-10

申请号：US16067085

申请日：2016-03-21

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

Inventor： Wenyi ZHANG ,  Cong SHEN ,  Ning LIANG

IPC: H04B7/06 ,  H04B7/0413

Abstract: The present disclosure provides a method for transmitting a signal to multiple User Equipments (UEs) utilizing reciprocity of a wireless channel. In this method, a vector channel from the base station to each UE can be converted into an equivalent Single Input Single Output (SISO) channel having a strong Light-of-Sight (LOS) component using channel feedback. In this way, a reliable signal transmission to multiple UEs can be achieved with little channel training overhead. The present disclosure has prominent advantages such as simplicity in implementation, low processing complexity and very low channel training overhead and is particularly applicable in low-speed transmission of broadcast signaling in a massive MIMO system and scenarios where the base station is to page inactive UEs.