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公开(公告)号：US11916626B2
公开(公告)日：2024-02-27
申请号：US17515218
申请日：2021-10-29
发明人： Seunghyun Lee , Chahyeon Eom , Kwonjong Lee , Chungyong Lee , Jieun Yu , Hyungje Lee
IPC分类号： H04B7/04 , H04B7/0456 , H04B7/06
CPC分类号： H04B7/0456 , H04B7/0617 , H04B7/0695
摘要： The disclosure relates to a 5G or pre-5G communication system for supporting higher data transmission rates than 4G communication systems such as LTE systems. According to an embodiment, a method performed by a base station supporting beam training using a beamforming codebook may comprise storing a plurality of codebooks corresponding to a plurality of different beamwidths, receiving a beam adjustment request from a user equipment (UE), determining, among the plurality of codebook, a codebook including beam codebooks for beam coverages including a beamwidth corresponding to a channel state of the UE, in response to receiving the beam adjustment request, and transmitting, to the UE, signals that are beamformed based on the codebook through a plurality of transmission beams using digital beamforming matrixes of the codebook.
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公开(公告)号：US11844034B2
公开(公告)日：2023-12-12
申请号：US17390146
申请日：2021-07-30
发明人： Kwonjong Lee , Hakkeon Lee , Insik Jung , Daesik Hong , Hyojin Lee
CPC分类号： H04W56/001 , H04L5/0048 , H04L25/0202 , H04W24/08
摘要： The disclosure relates to post-4th generation (4G) communication systems, such as 5th generation (5G) or 6th generation (6G), which support a higher data rate than the long term evolution (LTE) or 4G communication systems. A method and an apparatus for transmitting and receiving signals in a frequency-asynchronous non-orthogonal multiple access (FA-NOMA) communication system are provided. The method for transmitting a signal by a base station in an FA-NOMA system includes determining a frequency offset to be applied to a first signal transmitted to a first user equipment (UE) based on a second signal transmitted to a second UE, determining information for interference caused by the frequency offset, determining at least one pre-processing factor for the first UE based on the information for the interference, and transmitting a third signal including at least one first pilot to the first UE using the at least one pre-processing factor. The second signal includes at least one second pilot.
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公开(公告)号：US11595170B2
公开(公告)日：2023-02-28
申请号：US17167689
申请日：2021-02-04
发明人： Kwonjong Lee , Hyojin Lee , Hyungje Lee , Chungyong Lee , Chahyeon Eom , Sanggeun Lee
摘要： In a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE), a method of a first terminal in a wireless communication system is disclosed and may include performing channel measurement, based on one or more first reference signals received from a base station; identifying channel distribution information between the first terminal and the base station, based on the measured channel; selecting one or more representative channel vectors (RCVs), based on the identified channel distribution information; generating one or more constellations corresponding to the selected one or more RCVs; transmitting constellation set information including the generated one or more constellations to the base station; and performing communication with the base station, based on the generated one or more constellations.
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公开(公告)号：US11503651B2
公开(公告)日：2022-11-15
申请号：US17009630
申请日：2020-09-01
发明人： Kwonjong Lee , Daesik Hong , Soohyun Kim , Hyojin Lee , Seungil Park , Hakkeon Lee
摘要： The present disclosure relates to a communication method and system for converging a 5th-generation (5G) communication system or a 6th-generation (6G) communication system for supporting higher data rates beyond a 4th-generation (4G) system. The disclosure relates to an operating method of a terminal in a wireless communication system. The method may include: receiving configuration information about a plurality of signatures for non-orthogonal multiple access (NOMA) from a base station, the plurality of signatures including first signatures and second signatures; identifying a first signature sequence for the terminal, based on the configuration information; and transmitting data, configured based on the identified first signature sequence, to the base station, wherein the first signature sequence may be configured by repeating the first signatures, and the first signatures may be respectively applied to consecutive symbols of the data.
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公开(公告)号：US12082232B2
公开(公告)日：2024-09-03
申请号：US17524672
申请日：2021-11-11
发明人： Kwonjong Lee , Sang-Hyo Kim , Hyojin Lee , Min Young Chung , Dong Hyun Kong , Yong-Sung Kil , Seungil Park , Seunghyun Lee
IPC分类号： H04W72/542 , H04L5/14 , H04L41/12 , H04W72/23
CPC分类号： H04W72/542 , H04L5/1461 , H04L41/12 , H04W72/23
摘要： The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate than a 4G communication system such as LTE. The disclosure relates to a method and an apparatus for enhancement of self-interference channel estimation performance to secure self-interference removal performance in full-duplex (FD) communication and, more specifically, to a method and an apparatus for scheduling a transmission resource for enhanced self-interference channel estimation in the FD communication.
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6.发明授权公开(公告)号：US12120068B2
公开(公告)日：2024-10-15
申请号：US17604262
申请日：2020-04-08
发明人： Kwonjong Lee , Hyojin Lee , Jaehyun Lee
CPC分类号： H04L5/1461 , H04L5/16
摘要： The present disclosure relates to a communication technique for converging an IoT technology with a 5G communication system for supporting a higher data transfer rate beyond the 4G system, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail, security- and safety-related services, etc.) on the basis of 5G communication and IoT-related technologies. The present invention provides an apparatus and a method for supporting a full duplex operation in a wireless communication system.
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7.发明授权公开(公告)号：US12021619B2
公开(公告)日：2024-06-25
申请号：US18069072
申请日：2022-12-20
发明人： Donghun Lee , Seho Myung , Kwonjong Lee , Juho Lee , Min Jang
CPC分类号： H04L1/0059 , H03M13/23 , H03M13/2933
摘要： The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate than 4G communication systems such as LTE systems. The disclosure relates to a method and device for dynamically selecting, or simultaneously performing, PAC code-based Fano decoding and/or list decoding in a wireless communication system. The method for performing PAC code-based decoding by a reception device in a wireless communication system comprises identifying a specific criterion variable related to a channel state for selecting at least one of Fano decoding or list decoding for a signal received from a transmission device, comparing the specific criterion variable related to the channel state with a threshold, performing the Fano decoding in case that the specific criterion variable related to the channel state satisfies the threshold, and performing the list decoding in case that the specific criterion variable related to the channel state does not satisfy the threshold.
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8.发明授权公开(公告)号：US11552671B2
公开(公告)日：2023-01-10
申请号：US16936068
申请日：2020-07-22
发明人： Kwonjong Lee , Sang-Hyo Kim , Hyojin Lee , Min Young Chung , Dong Hyun Kong , Seungil Park , Hyosang Ju
摘要： A method of a first communication device for removing a self-interference signal in a wireless communication system is provided. The method includes receiving a signal having a size less than a first threshold value from a second communication device in a first interval within a first frame, transmitting a first signal to a third communication device in the first interval, and estimating a self-interference channel through which the self-interference signal is transmitted based on the signal received in the first interval and the first signal transmitted in the first interval. The self-interference signal is a signal transmitted by the first communication device and is received by the first communication device through the self-interference channel.
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公开(公告)号：US11483039B2
公开(公告)日：2022-10-25
申请号：US17389256
申请日：2021-07-29
发明人： Kwonjong Lee , Kwangseok Noh , Jeonghoon Park , Jun Heo
IPC分类号： H04B7/02 , H04B7/0456
摘要： A method of detecting a signal in a wireless communication system supporting multiple-input multiple-output (MIMO) is provided. The method includes obtaining a MIMO channel matrix between a transmission end and a reception end and a reception vector received by the reception end, identifying a modulation scheme of the transmission end, applying a preset equation modification scheme to the MIMO channel matrix and the reception vector according to the identified modulation scheme, and detecting a transmission vector of the transmission end by performing quantum calculation on the modified MIMO channel matrix and the modified reception vector.
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公开(公告)号：US11936400B2
公开(公告)日：2024-03-19
申请号：US17749636
申请日：2022-05-20
发明人： Kwonjong Lee , Seunghyun Lee , Sanghyo Kim , Minyoung Chung , Hyosang Ju , Jisang Park
CPC分类号： H03M13/29 , H03M13/253 , H03M13/098 , H03M13/1157 , H03M13/13 , H04L1/0063
摘要： The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. An encoding apparatus may obtain state-indicator information indicating a state of each of bits included in the polar code based on an index set of the bits, identify a weak-bit or a second weak-bit corresponding to a parity bit candidate position preset according to an interconnection within a parity-check (PC)-chain of the polar code and between PC-chains of the polar code as a parity bit, based on a number of weak-bits determined according to the state-indicator information and a number of bits to be used as parity bits, and obtain a polar code including the identified parity bit.
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