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公开(公告)号：US11463293B2
公开(公告)日：2022-10-04
申请号：US17022962
申请日：2020-09-16
Inventor： Hee Jung Yu , Min Ho Cheong , Jae Seung Lee , Hyoung Jin Kwon , Sok Kyu Lee
Abstract: An apparatus and method for orthogonal frequency division multiplexing (OFDM) transmission in a wireless local area network (WLAN) system is disclosed, in which the apparatus for OFDM transmission in the WLAN system includes a signal repetition unit to repeat an encoded signal based on a block unit and output the encoded signal and a repeated signal, an interleaver to interleave the encoded signal and the repeated signal and output an interleaved signal, a modulator to modulate the interleaved signal and output modulated symbols, and a phase rotation unit to phase shift the modulated symbol.
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公开(公告)号：US11146314B2
公开(公告)日：2021-10-12
申请号：US16794140
申请日：2020-02-18
Inventor： Jee Yon Choi , Hyoung Jin Kwon , Je Hun Lee , Sok Kyu Lee
IPC: H04W4/00 , H04B7/0452 , H04B7/0404 , H04L1/16 , H04W74/06 , H04W72/04 , H04W88/02
Abstract: Provided is a method of transmitting and receiving a frame for a multi-user multiple-input and multiple-output (MU-MIMO) communication in an access point (AP), the method including determining at least one transmission station (STA), transmitting, to the transmission STA, an uplink multi-user poll (UL MU poll) frame requesting a data frame, receiving the data frame from the at least one transmission STA simultaneously, and transmitting an acknowledgement (ACK) frame to the at least one transmission STA in response to the receiving.
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公开(公告)号：US11139863B2
公开(公告)日：2021-10-05
申请号：US16578100
申请日：2019-09-20
Inventor： Jae Seung Lee , Jin Hyung Oh , Gwang Zeen Ko , Hyun Duk Kang , Hyoung Jin Kwon , Myung Sun Song , Sok Kyu Lee , Min Ho Cheong , Jae Ick Choi
Abstract: Disclosed is a communication method using interference alignment in a wireless local area network (WLAN). An access point (AP) according to one embodiment may receive first channel information between a station associated with the AP and the AP and second channel information between the station and a neighboring AP to perform interference alignment in cooperation with the AP from the station, and perform interference alignment based on the first channel information and the second channel information.
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公开(公告)号：US10979344B2
公开(公告)日：2021-04-13
申请号：US16529042
申请日：2019-08-01
Inventor： Seung Eun Hong , Kyeongpyo Kim , Yong Sun Kim , Hyoung Jin Kwon , Woo Yong Lee
IPC: H04L12/707 , H04W40/24 , H04L12/24 , H04L12/703 , H04W24/04
Abstract: Provided is a method and apparatus for setting a detour path in a wideband high frequency wireless system using a centralized Media Access Control (MAC) protocol. Here, in a wireless system using the centralized MAC protocol where a time synchronization and a band allocation may be performed by a single central control unit, when a signal blockage occurs while a data communication is being performed via a direct path between a source device and a destination device, the detour path may be quickly provided.
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公开(公告)号：US10764790B2
公开(公告)日：2020-09-01
申请号：US15904279
申请日：2018-02-23
Inventor： Hyoung Jin Kwon , Yong Sun Kim , Kap Seok Chang , Seung Eun Hong , Sung Geun Jin , Woo Yong Lee , Hyun Kyu Chung
IPC: H04B7/24 , H04J1/00 , H04W28/26 , H04W16/26 , H04W88/04 , H04B7/155 , H04W28/16 , H04W40/22 , H04W72/04 , H04W84/04 , H04W84/12
Abstract: Provided is a communication method of a coordinator in a wireless networks system that uses a reservation-based media access control (MAC). The communication method includes receiving, from a source device, a frame that requests a reservation resource for a relay device, to enable a frame that the source device transmits to a destination device to be relayed via the relay device, and allocating the reservation resource for the relay device, in response to the request.
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Patent Agency Ranking
公开(公告)号：US10716055B2
公开(公告)日：2020-07-14
申请号：US16245097
申请日：2019-01-10
Inventor： Jae Seung Lee , Min Ho Cheong , Hyoung Jin Kwon , Hee Jung Yu , Sok Kyu Lee
IPC: H04W48/16 , H04W48/14 , H04W4/80 , H04L12/12 , H04L29/12 , H04L29/08 , H04W8/00 , H04W28/06 , H04W84/12 , H04W92/20
Abstract: A scanning method performed by a station (STA) in a wireless LAN system is provided. The method comprises: transmitting a probe request frame; and receiving a short probe response frame from an access point (AP) as a response to the probe request frame. The short probe response frame includes service set ID (SSID) information or compressed
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7.发明授权公开(公告)号：US10462817B2
公开(公告)日：2019-10-29
申请号：US15021524
申请日：2014-09-11
Inventor： Hyoung Jin Kwon , Hee Jung Yu , Sok Kyu Lee , Jae Seung Lee , Min Ho Cheong
Abstract: Disclosed are a method and apparatus for an access point (AP) to control channel access of a station in a wireless local area network (WLAN) system. An AP according to one embodiment may determine resource allocation information for protecting a resource for a station not referring to traffic indication map (TIM) information. The determined resource allocation information is transmitted to a station referring to the TIM information, and the station referring to the TIM information does not conduct channel access in a time period specified in the resource allocation information.
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8.发明授权公开(公告)号：US10462791B2
公开(公告)日：2019-10-29
申请号：US16035402
申请日：2018-07-13
Inventor： Hee Jung Yu , Min Ho Cheong , Jae Seung Lee , Hyoung Jin Kwon , Sok Kyu Lee
Abstract: Provided is an apparatus and method for communication in a wireless local area network (LAN) system supporting a multi-bandwidth in which a communication apparatus supporting a multi-bandwidth includes generating a base frame based on at least one of a first bandwidth having the lowest signal-to-noise ratio (SNR) among predetermined bandwidths and a second bandwidth that is two times greater than the first bandwidth, configuring a duplication mode frame based on the base frame, and transmitting the duplication mode frame through a plurality of bands.
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公开(公告)号：US10098054B2
公开(公告)日：2018-10-09
申请号：US14431741
申请日：2013-09-30
Inventor： Jae Seung Lee , Min Ho Cheong , Hyoung Jin Kwon , Jae Woo Park , Sok Kyu Lee
Abstract: Provided is a sector discovery apparatus and method, the method including setting, by an AP in a WLAN system, an omni-beacon interval for transmitting an omnidirectional beacon and sector beacon intervals for transmitting a sector beacon with respect to one of a plurality of sectors which are spatially divided, transmitting the sector beacon to a current sector among the plurality of sectors, transmitting, to the current sector, a transmission frame indicating sectorized transmission or a transmission frame indicating omnidirectional transmission, in a sector interval between the sector beacon intervals, and receiving, from a terminal located in the current sector, a response frame indicating an association performed by receiving the transmission frame indicating the sectorized transmission.
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10.发明申请公开(公告)号：US20180262547A1
公开(公告)日：2018-09-13
申请号：US15979416
申请日：2018-05-14
Inventor： Hyoung Jin Kwon , Jin Kyeong Kim , Woo Yong Lee , Kyeongpyo Kim
IPC: H04L29/06 , H04L5/00 , H04L12/707 , H04L1/06
CPC classification number: H04L65/4069 , H04L1/06 , H04L5/00 , H04L45/24 , H04L65/607 , H04L65/80
Abstract: The present invention relates to an apparatus and method for transmitting/receiving streaming data using multiple paths, in which the streaming data is smoothly reproduced without being interrupted, and more particularly, to an apparatus and method for transmitting/receiving streaming data using multiple paths, in which exchange of the streaming data is performed in real-time using the multiple paths regardless of obstacles. The method for transmitting streaming data using multiple paths includes managing and maintaining a path list including sequence information about a transmission path capable of transmitting data, framing the streaming data, and transmitting the framed streaming data via the transmission path according to the sequence information.
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