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21.发明授权公开(公告)号：US11171667B2
公开(公告)日：2021-11-09
申请号：US16855524
申请日：2020-04-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Min Jang , Hyuntack Lim , Hongsil Jeong , Hayoung Yang , Joohyun Lee
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). The disclosure provides decoding of a low-density parity-check (LDPC) code in a wireless communication system, and a decoding method of the LDPC code may include receiving a codeword, performing decoding iterations on the codeword a predefined maximum number of times using a parity check matrix, performing partial decoding using a partial area of the parity check matrix, and determining decoding success or failure of the codeword based a result of the partial decoding.
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22.发明授权公开(公告)号：US11109330B2
公开(公告)日：2021-08-31
申请号：US16343651
申请日：2017-03-14
Applicant: Samsung Electronics Co., Ltd.
Inventor： Hayoung Yang , Soongyoon Choi , Chongdon Kim
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.
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公开(公告)号：US10812171B2
公开(公告)日：2020-10-20
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 , H04B17/345
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.
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公开(公告)号：US10447329B2
公开(公告)日：2019-10-15
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
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).
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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.
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Patent Agency Ranking
公开(公告)号：US11108458B2
公开(公告)日：2021-08-31
申请号：US16473916
申请日：2018-01-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Joohyun Lee , Seijoon Shim , Hayoung Yang
Abstract: This disclosure relates to a 5G or pre-5G communication system to be provided to support a higher data transmission rate after a 4G communication system such as LTE. An apparatus that combines a plurality of radio signals according to an embodiment of the present invention comprises: a plurality of antennas which receive the plurality of radio signals; a baseband modem which generates channel estimation information related to the plurality of radio signals and combines the plurality of radio signals on the basis of combining control information; and a controller which generates the combining control information on the basis of the channel estimation information and preset configuration information and transmits the combining control information to the baseband modem.
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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
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.
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28.发明授权公开(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
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.
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29.发明授权公开(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
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.
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公开(公告)号：US10448349B2
公开(公告)日：2019-10-15
申请号：US15754805
申请日：2016-08-31
Applicant: Samsung Electronics Co., Ltd.
Inventor： Seijoon Shim , Hayoung Yang , Joohyun Lee , Soongyoon Choi
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.
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