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公开(公告)号：US11870468B2
公开(公告)日：2024-01-09
申请号：US18051802
申请日：2022-11-01
发明人： Yu Ro Lee , Jae Woo Park , Jae Seung Lee , Jee Yon Choi , Il Gyu Kim , Seung Chan Bang
IPC分类号： H04L1/06 , H04L5/00 , H04B7/0452 , H04W72/0453 , H04B7/06 , H04W84/12
CPC分类号： H04B7/0452 , H04B7/068 , H04B7/0697 , H04L5/0028 , H04L5/0064 , H04L5/0092 , H04W72/0453 , H04L5/0023 , H04W84/12
摘要： A wireless communication method and apparatus in a wireless local area network (WLAN) system are disclosed. A wireless communication method according to one embodiment may include generating a high-efficiency Wi-Fi (HEW) frame including at least one of an HEW-SIG-A field and an HEW-SIG-B field which include channel information for communications according to an Orthogonal Frequency-Division Multiple Access (OFDMA) mode, and transmitting the generated HEW frame to a reception apparatus.
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公开(公告)号：USRE49665E1
公开(公告)日：2023-09-19
申请号：US16813737
申请日：2020-03-10
发明人： Kap Seok Chang , Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Hyo Seok Yi , Moon Sik Lee , Young Hoon Kim , Seung Chan Bang
CPC分类号： H04W56/00 , H04L27/2613 , H04L27/2655
摘要： The present invention relates to a method for generating a downlink frame including generating a first short sequence and a second short sequence indicating cell group information, generating a first scrambling sequence determined by the first synchronization signal, generating a second scrambling sequence determined by the first short sequence, scrambling the first short sequence with the first scrambling sequence, scrambling the second short sequence with at least the second scrambling sequence, and mapping a second synchronization signal including the scrambled first short sequence and the scrambled second short sequence in the frequency domain.
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公开(公告)号：US11463218B2
公开(公告)日：2022-10-04
申请号：US16921541
申请日：2020-07-06
发明人： Yu Ro Lee , Jae Woo Park , Jae Seung Lee , Jee Yon Choi , Il Gyu Kim , Seung Chan Bang
IPC分类号： H04L5/00 , H04B17/336 , H04B7/024 , H04L27/26 , H04B7/0452 , H04B7/06
摘要： Disclosed are a frame transmission method and a communication device performing the same. The communication device transmits a null data packet (NDP)-announcement (NDP-A) including information on a plurality of communication devices participating in interference alignment and transmits an NDP including a common signal field and a common training field commonly applied to the plurality of communication devices.
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公开(公告)号：US11160033B2
公开(公告)日：2021-10-26
申请号：US16904341
申请日：2020-06-17
发明人： Go San Noh , Seon Ae Kim , Il Gyu Kim , Jun Hyeong Kim , Hee Sang Chung , Dae Soon Cho , Sung Woo Choi , Seung Nam Choi , Jung Pil Choi
摘要： An operation method of a first terminal, performed in a communication system, may comprise receiving sidelink resource allocation information from a base station; receiving a first sidelink signal from a second terminal based on the sidelink resource allocation information; calculating a path loss experienced by the first sidelink signal based on the first sidelink signal; transmitting a second sidelink signal including information on the path loss experienced by the first sidelink signal to the second terminal; and receiving, from the second terminal, a third sidelink signal to which a sidelink transmit power determined based on the path loss is allocated.
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5.发明授权公开(公告)号：US10362530B2
公开(公告)日：2019-07-23
申请号：US15593501
申请日：2017-05-12
发明人： Bing Hui , Junhyeong Kim , Yeong Jin Kim , Il Gyu Kim , Hee Sang Chung
摘要： A radio unit (RU) in a directional communication network establishes a connection with a first antenna among two antennas of a first TE in a first moving object that first enters a serving duration of the RU according to a network access request from the first antenna, and when receiving the network access request from a second antenna among two antennas of a second TE in a second moving object that next enters the serving duration, the RU processes the network access request from the second antenna based on network access priority of the second antenna and network access priority of the first antenna to which the connection is established.
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公开(公告)号：US09906277B2
公开(公告)日：2018-02-27
申请号：US15462370
申请日：2017-03-17
发明人： Jee Yon Choi , Jae Woo Park , Yu Ro Lee , Jae Seung Lee , Il Gyu Kim , Seung Chan Bang
IPC分类号： H04B7/024 , H04B7/0408 , H04B7/0456
CPC分类号： H04B7/024 , H04B7/0408 , H04B7/0456 , H04W74/0816
摘要： Disclosed is a protocol for transmitting data through cooperation between access points in an overlapped basic service set (OBSS) environment. A cooperative beamforming communication method may include negotiating, by a first access point, a cooperative transmit beamforming with a second access point having an OBSS area with the first access point; transmitting, by the first access point, a clear-to-send (CTS) to the second access point; and performing, by the first access point, the cooperative transmit beamforming with the second access point during a cooperative transmit beamforming duration determined through the negotiation after a predetermined time interval is elapsed, when transmission of the CTS is completed.
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公开(公告)号：US09602174B2
公开(公告)日：2017-03-21
申请号：US14681425
申请日：2015-04-08
发明人： Jee Yon Choi , Jae Woo Park , Yu Ro Lee , Jae Seung Lee , Il Gyu Kim , Seung Chan Bang
CPC分类号： H04B7/024 , H04B7/0408 , H04B7/0456 , H04W74/0816
摘要： A method for cooperative beamforming communication, is described including negotiating, at a first access point, a cooperative transmit beamforming with a second access point having an overlapped basic service set (OBSS) area with the first access point, and transmitting, from the first access point, a clear-to-send (CTS) signal to the second access point. The method, upon detecting at the first access point a completion of transmission of the CTS signal, performs at the first access point the cooperative transmit beamforming with the second access point during a time duration of the cooperative transmit beamforming and after a predetermined time interval has elapsed.
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公开(公告)号：US11363547B2
公开(公告)日：2022-06-14
申请号：US16114224
申请日：2018-08-28
发明人： Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Kapseok Chang , Hyo Seok Yi , Young Hoon Kim , Seung Chan Bang
摘要： A method of searching a cell in a mobile station of a communication system in which a plurality of cells are grouped into a plurality of cell groups, each cell group including at least two cells, includes: detecting a primary synchronization signal and a secondary synchronization signal from a received signal; and identifying a cell based on a combination of the primary synchronization signal and the secondary synchronization signal. The secondary synchronization signal is related to the cell group to which the mobile station belongs and the primary synchronization signal is related to the cell to which the mobile station belongs within the cell group.
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公开(公告)号：US11330540B2
公开(公告)日：2022-05-10
申请号：US16114224
申请日：2018-08-28
发明人： Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Kapseok Chang , Hyo Seok Yi , Young Hoon Kim , Seung Chan Bang
摘要： A method of searching a cell in a mobile station of a communication system in which a plurality of cells are grouped into a plurality of cell groups, each cell group including at least two cells, includes: detecting a primary synchronization signal and a secondary synchronization signal from a received signal; and identifying a cell based on a combination of the primary synchronization signal and the secondary synchronization signal. The secondary synchronization signal is related to the cell group to which the mobile station belongs and the primary synchronization signal is related to the cell to which the mobile station belongs within the cell group.
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10.发明授权公开(公告)号：US10687366B2
公开(公告)日：2020-06-16
申请号：US16128568
申请日：2018-09-12
发明人： Bing Hui , Il Gyu Kim , Jun Hyeong Kim , Go San Noh , Hee Sang Chung , Sung Woo Choi
摘要： A method of performing, by a device, a random access procedure in a radio communication system includes: receiving from a base station RACH configuration information; and transmitting a first message based on the received RACH configuration information. Herein, a plurality of SSBs may be in association with a plurality of preambles, and the first message may be transmitted in a time domain through a plurality of RACH resources.
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