公开(公告)号：US20240421863A1

公开(公告)日：2024-12-19

申请号：US18747946

申请日：2024-06-19

Applicant: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Nam Yoon LEE ,  Deokhwan HAN

IPC: H04B7/0413 ,  H04L5/00 ,  H04W72/1273 ,  H04W72/21 ,  H04W72/54

Abstract: A method of reconstructing a downlink (DL) channel by a base station in a multiple-input-multiple-output (MIMO) communication system includes: estimating UL channel information on the basis of an uplink (UL) pilot signal received from a user equipment; extracting at least one key parameter among common parameters of the UL channel and the DL channel from the estimated UL channel information; estimating DL channel information using the UL channel information and the at least one key parameter; and reconstructing the DL channel by correcting an error between the estimated DL channel information and actual DL channel information.