公开(公告)号：US10581573B2

公开(公告)日：2020-03-03

申请号：US15941780

申请日：2018-03-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chanho Choi ,  Seijoon Shim ,  Chongdon Kim ,  Hayoung Yang

IPC: H04L5/00 ,  H04W72/04 ,  H04J11/00 ,  H04W72/12

Abstract: The present disclosure relates to a 5G or a pre-5G communication system for supporting a higher data rate beyond 4G communication systems such as LTE. A signal transmitting method of an apparatus according to an embodiment of the present disclosure may include: confirming a location of a control signal for a first communication system when a transmission band of the first communication system and a transmission band of a second communication system overlap each other; puncturing a signal for the second communication system at the confirmed location of the control signal for the first communication system; and transmitting the punctured signal for the second communication system.

公开(公告)号：US20180183510A1

公开(公告)日：2018-06-28

申请号：US15850795

申请日：2017-12-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ikbeom Lee ,  Jinhwan Kang ,  Chongdon Kim ,  Hayoung Yang ,  Joohyun Lee

IPC: H04B7/08 ,  H04W72/08 ,  H04J11/00 ,  H04L5/00

Abstract: An interference cancellation method and apparatus of a base station is provided for use in a wireless communication system, which includes receiving a first signal by a first antenna and a second signal by a second antenna, measuring interference amounts in the first signal and the second signal based on a result of channel measurement performed on the first signal and the second signal, and generating a third signal as a target of decoding by adjusting channel parameters associated with channel conditions of the first antenna and the second antenna based on the measured interference amounts. The channel parameters are generated based on the channel measurement result.

公开(公告)号：US11476910B2

公开(公告)日：2022-10-18

申请号：US17257797

申请日：2019-07-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seijoon Shim ,  Chongdon Kim ,  Hayoung Yang ,  Chanho Choi

IPC: H04L27/28 ,  H04B7/06 ,  H04B7/0456 ,  H04L5/00

Abstract: Disclosed is a 5G or pre-5G communication system for supporting a data transmission rate higher than that of a 4G system such as LTE. According to one embodiment, disclosed is a method by which a base station performs downlink beamforming in a wireless access system, comprising the steps of, receiving, from a terminal, information related to a channel state, checking, on the basis of the information related to a channel state, channel state information estimated by subcarrier group unit, acquiring analog beamforming information and digital beamforming information on the basis of the channel state information, performing, by subcarrier group unit, hybrid beamforming in which the analog beamforming and the digital beamforming are combined, on the basis of the analog beamforming information and the digital beamforming information, and transmitting subcarrier group information corresponding to the subcarrier group, wherein the number of subcarriers in the subcarrier group is no more than the number of subcarriers included in one resource block.

公开(公告)号：US11064476B2

公开(公告)日：2021-07-13

申请号：US16464514

申请日：2017-11-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Myeongcheol Shin ,  Seijoon Shim ,  Hayoung Yang ,  Chongdon Kim

IPC: H04W72/04 ,  H04L1/18

Abstract: An electronic device in a wireless communication may include a communication unit configured to receive a signal, and a control unit configured to perform decoding of a control channel of the signal according to a first decoding condition among decoding conditions determined based on system information candidates for system information and to determine whether decoding is successful for the first decoding condition according to a result of performing the decoding.

公开(公告)号：US10892926B2

公开(公告)日：2021-01-12

申请号：US16325633

申请日：2017-08-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seijoon Shim ,  Hayoung Yang ,  Chongdon Kim ,  Chanho Choi

IPC: H04L27/20 ,  H04L5/00 ,  H04B17/12 ,  H04B7/06 ,  H04L25/02 ,  H04B17/309 ,  H04L5/14 ,  H04L27/26

Abstract: Disclosed are a method and a device for differently applying phase rotations for each antenna by dividing a frequency band in order to solve a problem in which reception performance deteriorates in a specific subcarrier when the correlation between antennas is high. According to the present invention, a method by which a transmitter transmits a signal comprises the steps of: estimating the transmission correlation between respective transmission paths; calculating a phase rotation value to be applied to a transmission signal on the basis of the estimated transmission correlation; applying a phase rotation in accordance with the phase rotation value to the transmission signal; and transmitting the transmission signal.

公开(公告)号：US10541473B2

公开(公告)日：2020-01-21

申请号：US16331906

申请日：2017-09-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seijoon Shim ,  Hayoung Yang ,  Chongdon Kim ,  Chanho Choi

IPC: H01Q3/30 ,  H04B17/12 ,  H04B17/21

Abstract: The present disclosure relates to a communication technique for convergence of a 5G communication system for supporting a higher data transmission rate beyond a 4G system with an IoT technology, and a system therefor. The present disclosure may be applied to an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety-related service, etc.) on the basis of a 5G communication technology and an IoT-related technology. An operation method of an inter-antenna phase calibration device in a wireless communication system using an unlicensed band according to an embodiment of the present invention comprises the steps of: calculating a listen before talk (LBT) processing time while an LBT is being performed; selecting a calibration mode for calibrating an inter-antenna phase on the basis of the LBT processing time; and calibrating the inter-antenna phase according to the selected calibration mode.