公开(公告)号：US20210368455A1

公开(公告)日：2021-11-25

申请号：US17256656

申请日：2020-02-20

Applicant: SOUTHEAST UNIVERSITY

Inventor： Xiqi GAO ,  Li YOU ,  Xu CHEN ,  Yufei HUANG ,  Xueyuan SHI ,  Siran HE ,  Wenjin WANG

IPC: H04W52/42 ,  H04B7/0452 ,  H04W72/04 ,  H04W56/00

Abstract: A large-scale MIMO (Multiple-Input Multiple-Output) wireless transmission method for millimeter wave/Terahertz networks is provided. In order to reduce the interruption of propagation in the millimeter wave/Terahertz band, a plurality of cells are combined into a wireless transmission network, the base station in each cell is equipped with a large-scale antenna array, and a unitary transformation matrix is used to achieve large-scale beam coverage for user terminals in the entire network. Moreover, in order to reduce the influence of the multipath and Doppler effects on transmission performance, received signals are synchronized for time and frequency in each receiving beam of a user terminal. The method allocates power for signal transmission according to the statistic information of synchronized equivalent channels, and gives an optimal power allocation matrix by iterative solution based on the CCCP (concave-convex procedure) and the deterministic equivalent method.