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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
Inventor： Yu Ro Lee , Jae Woo Park , Jae Seung Lee , Jee Yon Choi , Il Gyu Kim , Seung Chan Bang
IPC: H04L1/06 , H04L5/00 , H04B7/0452 , H04W72/0453 , H04B7/06 , H04W84/12
CPC classification number: H04B7/0452 , H04B7/068 , H04B7/0697 , H04L5/0028 , H04L5/0064 , H04L5/0092 , H04W72/0453 , H04L5/0023 , H04W84/12
Abstract: 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：US11463218B2
公开(公告)日：2022-10-04
申请号：US16921541
申请日：2020-07-06
Inventor： Yu Ro Lee , Jae Woo Park , Jae Seung Lee , Jee Yon Choi , Il Gyu Kim , Seung Chan Bang
IPC: H04L5/00 , H04B17/336 , H04B7/024 , H04L27/26 , H04B7/0452 , H04B7/06
Abstract: 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：US11039357B2
公开(公告)日：2021-06-15
申请号：US15984159
申请日：2018-05-18
Inventor： Hyun Seo Park , Hyun Lee , Tae Joong Kim , Hee Soo Lee , Yu Ro Lee , Eun Kyung Kim , An Seok Lee
Abstract: An operation method of a terminal, for a handover in a mobile communication system, may comprise performing measurement on beams of a target base station, and transmitting a measurement result of at least one beam of the target base station to a source base station; receiving, from the source base station, a handover command message including information on at least one RACH resource for the at least one beam; transmitting a handover indication message including information on at least one random access target beam having an order of channel conditions determined based on a latest measurement to the source base station and to the target base station through the source base station; and determining an optimal beam among the at least one random access target beam, and transmitting a RACH to the target base station through a RACH resource allocated to the optimal beam.
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公开(公告)号：US10432250B2
公开(公告)日：2019-10-01
申请号：US15697592
申请日：2017-09-07
Inventor： Hyung Sik Ju , Dong Hyuk Gwak , Seon Ae Kim , Yu Ro Lee , Hyun Lee
IPC: H04B1/525 , H04B7/0413 , H04L5/16 , H04L5/00
Abstract: An operation method of an in-band full duplex (IFD) multiple-input multiple-output (MIMO) transceiver, including a reception part, a transmission part, an analog self-interference (SI) generator, and a self-interference cancellation (SIC) controller, may comprise generating, at the SIC controller, a control signal for analog SIC and digital SIC and outputting the control signal to the reception part and the analog SI generator; cancelling, at the SIC controller, SI of a transmission signal of the transmission part based on the control signal; and cancelling, at the reception part, SI of a signal of the reception part based on the control signal.
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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
Inventor： Jee Yon Choi , Jae Woo Park , Yu Ro Lee , Jae Seung Lee , Il Gyu Kim , Seung Chan Bang
IPC: H04B7/024 , H04B7/0408 , H04B7/0456
CPC classification number: H04B7/024 , H04B7/0408 , H04B7/0456 , H04W74/0816
Abstract: 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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Patent Agency Ranking
公开(公告)号：US09602174B2
公开(公告)日：2017-03-21
申请号：US14681425
申请日：2015-04-08
Inventor： Jee Yon Choi , Jae Woo Park , Yu Ro Lee , Jae Seung Lee , Il Gyu Kim , Seung Chan Bang
CPC classification number: H04B7/024 , H04B7/0408 , H04B7/0456 , H04W74/0816
Abstract: 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：US20240284314A1
公开(公告)日：2024-08-22
申请号：US18441667
申请日：2024-02-14
Inventor： Han Jun PARK , Yong Jin Kwon , An Seok Lee , Heesoo Lee , Yun Joo Kim , Hyun Seo Park , Jung Bo Son , Yu Ro Lee
Abstract: A method of identifying AI/ML functionalities/models supported for mobile communication operated in mobile communication systems including a base station and one or more terminals may comprise: identifying, by at least one of the base station or the one or more terminals, information related to the AI/ML functionalities supportable by the one or more terminals; and identifying, by at least one of the base station or the one or more terminals, AI/ML model information supportable by the one or more terminals.
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公开(公告)号：US12028893B2
公开(公告)日：2024-07-02
申请号：US17562932
申请日：2021-12-27
Inventor： Hyung Sik Ju , Dong Hyuk Gwak , Seon Ae Kim , Yu Ro Lee
IPC: H04W72/12 , H04L5/00 , H04L5/14 , H04W72/04 , H04W72/044 , H04W72/121 , H04W72/23 , H04W72/51 , H04W72/566 , H04W72/54
CPC classification number: H04W72/569 , H04L5/0037 , H04L5/0044 , H04L5/0069 , H04L5/14 , H04W72/044 , H04W72/121 , H04W72/23 , H04W72/51 , H04W72/54
Abstract: An operation method of a base station in an IFD scheme may comprise receiving position information of each of a plurality of downlink (DL) terminals and a plurality of uplink (UL) terminals; determining a guard zone corresponding to each of the plurality of DL terminals based on the position information of each of the plurality of DL terminals; determining whether at least one UL terminal is located in the guard zone based on the position information of each of the plurality of UL terminals; determining a scheduling priority of each of the plurality of DL terminals according to whether at least one UL terminal is located in the guard zone; generating DL control information including frequency-time resource allocation information and interference control information based on the determined scheduling priority; and transmitting data signals and the DL control information to the plurality of DL terminals.
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公开(公告)号：US11930534B2
公开(公告)日：2024-03-12
申请号：US16963747
申请日：2019-04-10
Inventor： Eunkyung Kim , Tae Joong Kim , Hyun Seo Park , An Seok Lee , Yu Ro Lee , Hyun Lee
CPC classification number: H04W74/0833 , H04L1/18
Abstract: Disclosed are a method and a device for low latency communication in a communication system. An operation method of a base station comprises the steps of: transmitting first scheduling information of data units, transmitted through A sections in subframe #n, to a terminal through a first control channel in subframe #n; transmitting the data units to the terminal through the A sections; and transmitting second scheduling information of data unit(s), transmitted through B section(s) in subframe #(n+k) following subframe #n, to the terminal through a second control channel in subframe #(n+k). Therefore, the performance of the communication system can be improved.
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公开(公告)号：US11522583B2
公开(公告)日：2022-12-06
申请号：US17154779
申请日：2021-01-21
Inventor： Yu Ro Lee , Jae Woo Park , Jae Seung Lee , Jee Yon Choi , Il Gyu Kim , Seung Chan Bang
IPC: H04B7/06 , H04L5/00 , H04W72/04 , H04B7/0452 , H04W84/12
Abstract: 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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