公开(公告)号：US20150372741A1

公开(公告)日：2015-12-24

申请号：US14765192

申请日：2014-01-29

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  INDUSTRY-ACADEMIC COOPERATION FOUNDATION YONSEI UNIVERSITY

Inventor： Younsun KIM ,  Sooyong CHOI ,  Taehyoung KIM ,  Kyungsik MIN ,  Jungkyun PARK ,  Juho LEE ,  Hyojin LEE ,  Minchae JUNG ,  Hyoungju JI

IPC: H04B7/06 ,  H04L1/00 ,  H04B7/04

CPC classification number: H04B7/0632 ,  H04B7/0413 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0639 ,  H04B7/0641 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/0072 ,  H04L1/0078 ,  H04L1/06 ,  H04W88/08

Abstract: Disclosed are a method and an apparatus for feeding back channel estimation in a MIMO system. A terminal receives a reference signal for estimating a channel from a base station; estimates the channel based on the reference signal; generates channel estimation information according to the channel estimation result and generates error information indicating an error of the channel estimation; and transmits feedback information including the channel estimation information and the error information to the base station.

Abstract translation: 公开了一种用于在MIMO系统中反馈信道估计的方法和装置。 终端接收用于从基站估计信道的参考信号; 基于参考信号估计信道; 根据信道估计结果生成信道估计信息，生成表示信道估计误差的误差信息; 并向基站发送包括信道估计信息和错误信息的反馈信息。

公开(公告)号：US20250168042A1

公开(公告)日：2025-05-22

申请号：US19035176

申请日：2025-01-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seongbae HAN ,  Jaemin JUNG ,  Kyungsik MIN

IPC: H04L25/02 ,  H04B7/06 ,  H04L5/00

Abstract: A method performed by a radio unit (RU) is provided. The method includes receiving, by the RU, sounding reference signals (SRSs), receiving, by the RU from a distributed unit (DU) via a fronthaul interface, a control plane (C-plane) message including SRS configuration information, performing, by the RU, channel estimation based on the SRSs and the SRS configuration information, and performing, by the RU, beamforming on the basis of the channel estimation.

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：US20240129913A1

公开(公告)日：2024-04-18

申请号：US18540127

申请日：2023-12-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wonjun HWANG ,  Kyungsik MIN ,  Jongho OH ,  Hyoungjin LIM

IPC: H04W72/12 ,  H04B7/0452

CPC classification number: H04W72/12 ,  H04B7/0452

Abstract: A radio unit (RU) is provided. The RU includes memory storing instructions, one or more transceivers configured to transmit signals or receive signals on a fronthaul interface, and one or more processors. Wherein the instructions cause, when executed by the one or more processors, the RU to receive, from a distributed unit (DU), a control plane (C-plane) message including section information for user equipment (UE) scheduling information and section extension information for a group configuration of multiple ports, wherein the section information including information on a resource region of a section description and a UE identifier, and the section extension information including information on a beam group type, information on the number of one or more ports indicated by the section extension information, and a UE identifier per port, and, in case that a UE identifier of a specified port is set to 0x7FFF in the C-plane message, identify that the resource region is not allocated for the specified port.

公开(公告)号：US20230224919A1

公开(公告)日：2023-07-13

申请号：US18184221

申请日：2023-03-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wonjun HWANG ,  Daehoon KIM ,  Bongjin KIM ,  Kyungsik MIN ,  Byoungyoon MIN ,  Moongun SONG ,  Jongho OH ,  Hyoungjin LIM

IPC: H04W72/23 ,  H04B7/06

CPC classification number: H04W72/23 ,  H04B7/0617

Abstract: The disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate than a 4th generation (4G) communication system such as long term evolution (LTE). A method performed by a digital unit (DU) of a base station in a wireless communication system is provided. The method includes configuring, in a first control message, a section extension field including additional information, and transmitting the first control message to a radio unit (RU) of the base station, wherein the first control message includes information on one or more terminals scheduled in the base station.

公开(公告)号：US20150365153A1

公开(公告)日：2015-12-17

申请号：US14764086

申请日：2014-01-29

Applicant: Samsung Electronics Co., Ltd. ,  Industry-Academic Cooperation Foundation Yonsei University

Inventor： Younsun KIM ,  Sooyong CHOI ,  Taehyoung KIM ,  Kyungsik MIN ,  Jungkyun PARK ,  Juho LEE ,  Hyojin LEE ,  Minchae JUNG ,  Hyoungju JI

IPC: H04B7/06 ,  H04B7/04

CPC classification number: H04B7/0478 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632

Abstract: A PSCG feedback-based multi-stream multiuser CQI estimation method and apparatus is provided for estimating multi-stream MU-CQI efficiently based on per-stream channel gain feedback. A feedback information transmission method of a terminal in a wireless communication system according to the present disclosure includes estimating a downlink channel based on a channel state information reference signal transmitted by a base station, determining a number of streams based on the estimated downlink channel, generating the feedback information corresponding to the number of streams, and transmitting the feedback information to the base station.

Abstract translation: 提供基于PSCG反馈的多流多用户CQI估计方法和装置，用于基于每流信道增益反馈有效地估计多流MU-CQI。 根据本公开的无线通信系统中的终端的反馈信息传输方法包括基于由基站发送的信道状态信息参考信号估计下行链路信道，基于估计的下行链路信道确定流的数量，生成 对应于流的数量的反馈信息，以及将反馈信息发送到基站。