公开(公告)号：US20210288704A1

公开(公告)日：2021-09-16

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: H04B7/06 ,  H04L5/00 ,  H04B7/0456

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：US20200212979A1

公开(公告)日：2020-07-02

申请号：US16727391

申请日：2019-12-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seijoon SHIM ,  Joonho CHO ,  Hayoung YANG ,  Eunae LEE ,  Taejun JANG ,  Jonghwan KIM

IPC: H04B7/06 ,  H04L5/00 ,  H04B7/0417 ,  H04B7/08 ,  H04L27/26

Abstract: A base station for transmitting and receiving signals in a wireless communication system is provided. The base station includes a transceiver, and at least one processor configured to obtain reception antenna weights for the base station including an array of a plurality of antennas, and transmission antenna weights for at least one user equipment (UE), convert signals received from the at least one UE through a plurality of reception paths, into beam-domain signals, based on the transmission antenna weights and the reception antenna weights, combine the converted beam-domain signals by applying predefined combining weights to the converted beam-domain signals, and obtain data from the combined signals.

公开(公告)号：US20190281564A1

公开(公告)日：2019-09-12

申请号：US16343651

申请日：2017-03-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hayoung YANG ,  Soongyoon CHOI ,  Chongdon KIM

IPC: H04W56/00 ,  H04W74/08 ,  H04W72/04 ,  H04L27/26

Abstract: A method and apparatus is provided for determining, by a receiving end, a correction time value according to ranging access in a wireless communication system. A reception apparatus in a wireless communication system comprises a signal period selector for selecting a first detection time interval and a second detection time interval from a RACH signal for ranging access, the RACH signal including a RACH preamble sequence, a time offset detector for detecting a first time offset and a second time offset, each corresponding to a point of time when the preamble sequence is received, from the selected first detection time interval and the second detection time interval, respectively, and a time offset determiner for determining a correction time value for correcting a point of time when data is transmitted by a transmitting end in the wireless communication system, on the basis of the detected first time offset and the second time offset. This research was carried out with the support of “Pan-government Giga Korea Project” led by the Ministry of Science, ICT and Future Planning.

公开(公告)号：US20190260616A1

公开(公告)日：2019-08-22

申请号：US16282110

申请日：2019-02-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hayoung YANG ,  Chongdon KIM ,  Joohyun LEE

IPC: H04L25/03 ,  H04L27/26 ,  H04W76/15

Abstract: Provided are an apparatus for supporting a plurality of wireless communication systems and an operating method of the same. The apparatus receives an integrated signal including a first wireless communication system signal and a second wireless communication system signal assigned to a certain frequency band, performs first processing on the integrated signal, performs second processing on the integrated signal, is scheduled to perform at least one of first interference cancellation (IC) process of canceling interference of the first wireless communication system signal from the integrated signal based on the signal on which first processing is performed or second IC process of canceling interference of the second wireless communication system signal from the integrated signal based on the signal on which second processing is performed, and performs at least one of the first IC process or the second IC process based on the scheduling.

公开(公告)号：US20180287655A1

公开(公告)日：2018-10-04

申请号：US15765433

申请日：2016-09-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Dae Ho SOHN ,  Byungjoon PARK ,  Hayoung YANG ,  Yusuk YUN

IPC: H04B1/40

CPC classification number: H04B1/40 ,  H04B7/08 ,  H04W76/00 ,  H04W88/085

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method of operating a first Radio Unit (RU) for transmitting an uplink signal in a communication system of the present disclosure includes receiving a first signal through an antenna, re-compensating a second signal delivered from a second RU through a transmission line by using a re-compensation factor, compensating a third signal obtained by adding the first signal and the re-compensated second signal by using a compensation factor, and delivering the compensated third signal to a higher-level RU or a Digital Unit (DU).

公开(公告)号：US20230318665A1

公开(公告)日：2023-10-05

申请号：US18173379

申请日：2023-02-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyuntack LIM ,  Hayoung YANG ,  Joohyun LEE

IPC: H04B7/0417 ,  H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/061

Abstract: An iterative detection and decoding (IDD) device in a receiving device of a wireless communication system by using multiple-input multiple-output (MIMO) and a channel code by connecting is provided. The IDD device includes an MIMO detector that generates an output log likelihood ratio (LLR) value by using signals received from a plurality of antennas and a feedback LLR value, a channel decoder for outputting a channel decoded LLR value through channel decoding and a second operation by using the LLR value of the MIMO detector, and a feedback compensator for generating the feedback LLR value so that the channel decoded LLR value is within the range of an upper threshold and a lower threshold determined based on a bit width of an LLR used by the receiving device.

公开(公告)号：US20210105730A1

公开(公告)日：2021-04-08

申请号：US16971905

申请日：2019-02-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seijoon SHIM ,  Hayoung YANG ,  Chongdon KIM ,  Byungjoon PARK ,  Myeongcheol SHIN ,  Joohyun LEE ,  Chanho CHOI

IPC: H04W56/00 ,  H04W72/04

Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. A method for transmitting and receiving data comprises the steps of: receiving a first synchronization block over a first narrow band; identifying whether an indicator indicating that the first narrow band is not allocated to a terminal is included in the first synchronization block; and performing synchronization in the first narrow band if the indicator indicating that the first narrow band is not allocated to the terminal is not included in the first synchronization block.

公开(公告)号：US20210058172A1

公开(公告)日：2021-02-25

申请号：US16979307

申请日：2019-02-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ikbeom LEE ,  Chongdon KIM ,  Youngtaek BAE ,  Hayoung YANG

IPC: H04B17/345 ,  H04B17/327 ,  H04B7/06

Abstract: The present disclosure provides a method for measuring an amount of interference from an antenna, the method comprising the operations of: receiving at least on reference symbol; calculating a reference symbol NI, which is the antenna-related noise interference (NI) in the at least one reference symbol, on the basis of the at least one reference symbol; receiving at least one data symbol; calculating a data symbol NI, which is the antenna-related NI in the data symbol, on the basis of the at least one data symbol; calculating an NI ratio of the antenna which is the ratio of the data symbol NI relative to the reference symbol NI; and determining an antenna weight of the antenna on the basis of the NI ratio.

公开(公告)号：US20200067608A1

公开(公告)日：2020-02-27

申请号：US16463123

申请日：2017-03-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seijoon SHIM ,  Chongdon KIM ,  Hayoung YANG ,  Joohyun LEE ,  Chanho CHOI

IPC: H04B17/12 ,  H04B17/14

Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting a higher data transfer rate than a 4G communication system such as LTE. The method is for phase correction of an antenna in a large-capacity antenna system, the method includes grouping large-capacity antennas into a predetermined number of groups; setting a path such that ports of the grouped antennas have a feedback path; outputting a test signal to be outputted to each antenna port of each group by adding a code or sequence having orthogonality; separating signals for each antenna port in the group by using the code or sequence having orthogonality in a signal received through the feedback path; and calculating a calibration value by detecting a phase change of the separated signal.

公开(公告)号：US20180270770A1

公开(公告)日：2018-09-20

申请号：US15754805

申请日：2016-08-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seijoon SHIM ,  Hayoung YANG ,  Joohyun LEE ,  Soongyoon CHOI

IPC: H04W56/00 ,  H04L5/00

CPC classification number: H04W56/001 ,  H04J11/0069 ,  H04J11/0083 ,  H04L5/0048

Abstract: Provided are a cell ID determination method and apparatus for a receiving device in a wireless communication system. The cell ID determination method for a receiving device may include: receiving a first synchronization signal and a second synchronization signal; generating a first joint signal by concatenating the first synchronization signal and the second synchronization signal; calculating the correlation between the first joint signal and each of a preset number of cell IDs; and determining a cell ID using the calculated correlations.