公开(公告)号：US20250150306A1

公开(公告)日：2025-05-08

申请号：US18990311

申请日：2024-12-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yongyun CHOI ,  Kyungsik MIN ,  Seongbae HAN

IPC: H04L25/02 ,  H04B17/373 ,  H04L5/00

Abstract: The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. According to various embodiments disclosed herein, a method performed in a wireless communication system by a distributed unit (DU) comprises: receiving a sounding reference signal (SRS) for channel estimation from a terminal; based on the received SRS, generating information on a channel prediction performed by a radio unit (RU); and transmitting a control message including the generated information on the channel prediction to the RU through a control plane (C-plane), wherein the information on the channel prediction includes an index of the terminal and information on the SRS.

公开(公告)号：US20230198810A1

公开(公告)日：2023-06-22

申请号：US17919425

申请日：2021-04-16

Applicant: Samsung Electronics Co., Ltd. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yongyun CHOI ,  Hwanjin KIM ,  Chulhee JANG ,  Junil CHOI

IPC: H04L25/02 ,  H04W64/00

CPC classification number: H04L25/0204 ,  H04L25/0222 ,  H04W64/006

Abstract: Disclosed is a method for estimating a channel of a terminal by a base station in a wireless communication system supporting multiple antennas, the method comprising the steps of: estimating a moving speed of the terminal on the basis of a first channel value acquired at a current time point and a second channel value acquired at a previous time point; determining, on the basis of the estimated moving speed, a complexity degree corresponding to the number of channel values for multiple time points including the current time point; and estimating a channel of the terminal at a next time point on the basis of the determined complexity degree.

公开(公告)号：US20230336224A1

公开(公告)日：2023-10-19

申请号：US18141812

申请日：2023-05-01

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yongyun CHOI ,  Chulhee JANG ,  Junil CHOI ,  Sucheol KIM ,  Hyeongtaek LEE ,  Hwanjin KIM

IPC: H04B7/06 ,  H04B7/0456 ,  H04B7/0426

CPC classification number: H04B7/0617 ,  H04B7/0639 ,  H04B7/0456 ,  H04B7/0426

Abstract: A method performed by a base station in a wireless communication system, includes: determining, from among a plurality of antennas of the base station, a first antenna that meets a power threshold, based on a first beamformer scaled according to a power limit; generating a second beamformer corresponding to the first antenna; applying an overlap coefficient matrix to the second beamformer; generating a third beamformer by combining the second beamformer to which the overlap coefficient matrix has been applied and the first beamformer; and transmitting a signal using the third beamformer.

公开(公告)号：US20220224388A1

公开(公告)日：2022-07-14

申请号：US17703379

申请日：2022-03-24

Applicant: Samsung Electronics Co., Ltd. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yongyun CHOI ,  Chulhee JANG ,  Hyeongtaek LEE ,  Junil CHOI ,  Hwanjin KIM

IPC: H04B7/06 ,  H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04B7/08

Abstract: The disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data rate after a 4th generation (4G) communication systems such as long term evolution (LTE). The disclosure is for reconstructing a downlink channel in a wireless communication system. An operation method for a base station is provided. The operation method includes the steps of transmitting downlink reference signals (RSs) to a terminal, receiving an indication of a first channel matrix estimated by the terminal and at least one uplink RS; estimating a second channel matrix on the basis of the at least one uplink RS, and on the basis of the first channel matrix and the second channel matrix, reconstructing channel information to be used for data transmission.