公开(公告)号：US11689262B2

公开(公告)日：2023-06-27

申请号：US17539769

申请日：2021-12-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yongin Choi ,  Yangsoo Kwon ,  Joonsung Kim ,  Jinwoo Oh ,  Mingoo Kim ,  Inhyoung Kim ,  Youngseok Jung ,  Jinwon Choi

IPC: H04B7/02 ,  H04B7/06

CPC classification number: H04B7/0615 ,  H04B7/0639 ,  H04B7/0695

Abstract: An operating method of a communication device for providing a beamformed transmission signal to a plurality of terminals may include determining a target transmission vector based on an area restriction condition for each of the plurality of terminals, generating a beam selection matrix for selecting some of a plurality of antennas based on the target transmission vector and a beam selection condition, generating a precoding matrix based on the target transmission vector and the beam selection matrix, and generating a transmission signal based on the beam selection matrix and the precoding matrix.

公开(公告)号：US20210266198A1

公开(公告)日：2021-08-26

申请号：US17039709

申请日：2020-09-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongsik Yoon ,  Jungmin Park ,  Jinho Kim ,  Youngseok Jung

IPC: H04L25/02 ,  H04L5/00 ,  H04W72/04

Abstract: The present disclosure relates to a channel estimation method of a wireless communication device. The channel estimation method includes descrambling a pilot signal having a unit symbol, dividing the descrambled pilot signal, and estimating a channel value of the wireless communication device. The descrambled pilot signal may be divided into a plurality of frequency resources with a first frequency resource and a second frequency resource and generating a first signal chunk with the first frequency resource and a second signal chunk with the second frequency resource. The channel value of the wireless communication device may be estimated based on the first signal chunk and the second signal chunk.

公开(公告)号：US20210168731A1

公开(公告)日：2021-06-03

申请号：US17104245

申请日：2020-11-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Youngseok Jung ,  lnhyoung Kim

IPC: H04W52/32 ,  H04W24/08 ,  H04W52/24

Abstract: An operating method of a wireless communication device configured to perform wireless communication with a cell. The method involves identifying, from a downlink signal received from the cell, an electromagnetic field state associated with an antenna of the wireless communication device. A power compensation mode for compensating transmission power of a sounding reference signal is selected based on the identified electromagnetic field state. The transmission power of the sounding reference signal is compensated based on the selected power compensation mode. The sounding reference signal is transmitted with the compensated transmission power through the antenna to the cell.