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公开(公告)号：US10231218B2
公开(公告)日：2019-03-12
申请号：US14755329
申请日：2015-06-30
Inventor： Yun Joo Kim , Jee Yon Choi , Sok-Kyu Lee
Abstract: The present invention relates to a method for efficient transmission of a request frame such as an RTS/CTS frame and a response frame in response to the request frame in a multi-user based wireless communication system. The method of the present invention comprises: a process where wireless terminals transmit a response frame at their own response frame transmission time through a request frame that contains information about a plurality of wireless terminals and information about the response frame transmission time of the respective wireless terminals; a process where the respective wireless terminals transmit a response frame according to a token scheme such that the response frame is transmitted to a final access point; and a process where only a representative wireless terminal selected depending on a given wireless environment receives the response frame.
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公开(公告)号：US09730238B2
公开(公告)日：2017-08-08
申请号：US14734733
申请日：2015-06-09
Inventor： Jee Yon Choi , Jae Woo Park , Yu Ro Lee , Jae Seung Lee , Il Gyu Kim , Seung Chan Bang
Abstract: Provided is a data frame transmission method of a communication apparatus, the method including determining whether a transmission allowance condition of a data frame of the communication apparatus is satisfied when another communication apparatus occupies a channel, verifying an end time of another data frame transmitted by the other communication apparatus based on a result of the determining, and transmitting the data frame based on the verified end time.
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公开(公告)号：US09014212B2
公开(公告)日：2015-04-21
申请号：US13783192
申请日：2013-03-01
Inventor： Jae Woo Park , Jong Ee Oh , Il-Gu Lee , Sok-kyu Lee , Min Ho Cheong , Jee Yon Choi , Jae Seung Lee , Yun Joo Kim
CPC classification number: H04B7/0452 , H04B7/0413 , H04L1/0003 , H04L1/0061 , H04L1/0072 , H04L1/0075 , H04L1/0083 , H04L1/08 , H04L27/18 , H04L27/20 , H04L69/22 , H04L69/323 , H04Q2213/13215 , H04W84/12
Abstract: The present invention relates to a method and apparatus for transceiving data. A method in which a transmitting terminal transmits data to a receiving terminal in a MIMO system according to one embodiment of the present invention comprises the following steps: generating a data field containing the data; generating a signal field containing information on the data field; generating a data frame containing the data field and the signal field; and transmitting the data frame to the receiving terminal. According to the present invention, an end of the frame being transmitted is accurately notified to the receiving terminal in a communication system in which the frame is transmitted using MIMO, thereby decoding the frame in a more efficient manner at the receiving terminal.
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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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Patent Agency Ranking
公开(公告)号：US10136287B2
公开(公告)日：2018-11-20
申请号：US15206420
申请日：2016-07-11
Inventor： Jae Seung Lee , Moon Sik Lee , Young Hoon Kim , Hoo Sung Lee , Jae Woo Park , Gyung Chul Shin , Ik Jae Chun , Jee Yon Choi , Dong Seung Kwon
IPC: H04W4/80 , H04W56/00 , H04B7/0413 , H04B5/00 , H04L12/40 , H04L29/06 , H04L29/08 , H04L12/70 , H04L1/00
Abstract: A method and apparatus for close-proximity communication. The close-proximity communication method performed by a transmitter includes generating a physical layer (PHY) frame including a PHY preamble, a frame header, and a payload field, and transmitting the generated PHY frame to a receiver, in which the frame header may include a media access control (MAC) header, a header check sequence (HCS), and a Reed-Solomon (RS) parity bit.
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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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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：US11546124B2
公开(公告)日：2023-01-03
申请号：US17064994
申请日：2020-10-07
Inventor： Jae Seung Lee , Moon Sik Lee , Jae Woo Park , Jee Yon Choi , Young Hoon Kim , Ju Ho Park , Hoo Sung Lee , Young Il Jeon , Chan Bok Jeong , Hyung Sik Ju , Ik Jae Chun , Il Gyu Kim
Abstract: Disclosed are a method and an apparatus for communication using fronthaul interfaces. An operation method of a first communication node includes transmitting a section type 8 message #1 including numerology-related information #1; transmitting a section type 9 message #1 including channel information of each of one or more second communication nodes indicated by the section type 8 message #1 and the numerology related information #1, transmitting a section type 8 message #2 including numerology-related information #2 other than the numerology-related information #1; and transmitting a section type 9 message #2 including channel information of each of one or more third communication nodes indicated by the section type 8 message #2 and the numerology-related information #2.
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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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