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公开(公告)号：US09912509B2
公开(公告)日：2018-03-06
申请号：US15017035
申请日：2016-02-05
Inventor： Hee Jung Yu , Min Ho Cheong , Jae Seung Lee , Hyoung Jin Kwon , Sok Kyu Lee
CPC classification number: H04L27/2637 , H04B7/12 , H04L1/004 , H04L1/08 , H04L5/0007 , H04L5/001 , H04L5/0044 , H04L5/0053 , H04L27/2617 , H04L27/2621 , H04L27/2627 , H04W52/0209 , H04W72/0453 , H04W84/12 , Y02D70/00 , Y02D70/142
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 symbols.
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公开(公告)号：US09860837B2
公开(公告)日：2018-01-02
申请号：US14407811
申请日：2013-06-13
Inventor： Jae Seung Lee , Hyoung Jin Kwon , Min Ho Cheong , Hee Jung Yu , Sok Kyu Lee
CPC classification number: H04W52/0216 , H04W74/006 , H04W84/12 , Y02D70/00 , Y02D70/142 , Y02D70/23
Abstract: An operating mode change method of a wireless local area network (WLAN) system according to an exemplary embodiment includes transmitting, by a station (STA) to an access point (AP), an operating mode change request frame comprising at least one of information on a change of a traffic indication map (TIM) mode, a request for a change of a power save parameter, and information on a change of a service type of the STA, receiving, from the AP, an operating mode change response frame comprising at least one of a TIM mode allowed by the AP, a reallocated association identification (AID), and information on a changed power save parameter, and performing at least one of the change of the TIM mode and the change of the power save parameter based on the information included in the operating mode change response frame.
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13.发明授权公开(公告)号：US09839047B2
公开(公告)日：2017-12-05
申请号：US14561043
申请日：2014-12-04
Inventor： Hyoung Jin Kwon , Sok Kyu Lee , Jae Seung Lee , Min Ho Cheong
CPC classification number: H04W72/1231 , H04L1/00 , H04L25/0224 , H04W74/00 , H04W84/12
Abstract: Provided are channel sounding and scheduling methods for interference alignment in a wireless LAN. The sounding method includes transmitting a RTS frame, the RTS frame including an OIA candidate AP list that includes identification information of a plurality of access points, transmitting a CTS poll frame for triggering transmission of a CTS frame to a second access point which is a first access point in the OIA candidate AP list, and receiving a CTS frame which is a response to the CTS poll frame from the second access point. Therefore, communication performance of the wireless LAN can be improved.
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公开(公告)号：US09807797B2
公开(公告)日：2017-10-31
申请号：US14425617
申请日：2013-09-04
Inventor： Min Ho Cheong , Hyoung Jin Kwon , Jae Seung Lee , Jae Woo Park , Sok Kyu Lee
CPC classification number: H04W74/04 , H04B7/0408 , H04B7/0617 , H04W16/28 , H04W48/16 , H04W74/08 , H04W84/12
Abstract: A channel access method and apparatus are disclosed. The channel access method by an access point (AP) having a sector antenna in a wireless local access network (WLAN), may include transmitting a sector beacon with respect to any one sector among a plurality of sectors, transmitting and receiving data with at least one station in any one sector during a pre-scheduled sector interval, sequentially performing transmission of the sector beacon and transmission and reception of the data with respect to remaining sectors of the plurality of sectors excluding the any one sector, transmitting an omni beacon with respect to all of the plurality of sectors, and transmitting and receiving data with respect to at least one station of the plurality of sectors during a pre-scheduled Basic Service Set (BSS) interval.
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15.发明授权Wireless communication method and apparatus for transmitting and receiving frame through relay 有权用于通过继电器发送和接收帧的无线通信方法和装置公开(公告)号：US09590719B2
公开(公告)日：2017-03-07
申请号：US14472298
申请日：2014-08-28
Inventor： Kap Seok Chang , Hyoung Jin Kwon , Sung Geun Jin , Yong Sun Kim , Seung Eun Hong , Woo Yong Lee , Hyun Kyu Chung
IPC: H04W48/16 , H04W40/24 , H04W40/12 , H04W24/00 , H04W72/08 , H04B7/14 , H04B7/155 , H04B7/26 , H04W40/22
CPC classification number: H04B7/15528 , H04B7/15592 , H04B7/2606 , H04W40/22 , Y02D70/00 , Y02D70/142 , Y02D70/39 , Y02D70/446 , Y02D70/449
Abstract: The present invention provides a wireless communication method used for transmitting and receiving a relay in a wireless local area network system. The wireless local area network system according to an embodiment of the present invention relates to a wireless communication method of setting a relay link through a relay and setting a transmission time point at which a data frame is transmitted in a source device by recognizing a propagation delay between devices, and the like when an operation mode of the set relay corresponds to a cooperating mode.
Abstract translation: 本发明提供一种用于在无线局域网系统中发送和接收中继的无线通信方法。 根据本发明的实施例的无线局域网系统涉及通过中继设置中继链路的无线通信方法，并且通过识别传播延迟来设置在源设备中发送数据帧的传输时间点 当设置的继电器的操作模式对应于协作模式时，在设备之间等。
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Patent Agency Ranking
16.发明授权公开(公告)号：US09584212B2
公开(公告)日：2017-02-28
申请号：US14550365
申请日：2014-11-21
Inventor： Hyoung Jin Kwon , Yong Sun Kim , Sung Geun Jin , Kap Seok Chang , Seung Eun Hong , Woo Yong Lee , Hyun Kyu Chung
CPC classification number: H04B7/15557 , H04B7/1555 , H04L5/14 , H04L45/22 , H04W24/00 , H04W24/08 , H04W72/02 , H04W84/047
Abstract: A communication method of a source device according to an embodiment includes detecting a status of a first link directly connected from the source device to a destination device or a status of a second link connected from the source device to the destination device via a relay device, selecting any one of the first link and the second link based on a result of the detection, and transmitting data using the selected link.
Abstract translation: 根据实施例的源设备的通信方法包括：经由中继设备检测从源设备直接连接到目的地设备的第一链路的状态或从源设备连接到目的设备的第二链路的状态， 基于检测结果选择第一链路和第二链路中的任何一个，以及使用所选择的链路发送数据。
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17.发明授权Uplink multi-user multiple-input and multiple-output (UL MU-MIMO) transmission request method in UL MU-MIMO communication 有权UL MU-MIMO通信中的上行多用户多输入多输出（UL MU-MIMO）传输请求方法公开(公告)号：US09455773B2
公开(公告)日：2016-09-27
申请号：US14329874
申请日：2014-07-11
Inventor： Jee Yon Choi , Jae Woo Park , Hyoung Jin Kwon , Sok Kyu Lee
CPC classification number: H04L45/74 , H04B7/0452 , H04B7/0617 , H04W72/0413 , H04W88/08
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 transmitting, to each of a plurality of stations (STAs), an uplink multi-user request (UL MU request) frame requesting transmission of a data frame, and receiving, from each of the plurality of STAs, the data frame during an identical period of time based on an identical reception intensity, wherein the UL MU request frame includes at least one of information on a transmission time of the data frame and information on a reception intensity of the data frame in the AP.
Abstract translation: 提供了一种在接入点（AP）中发送和接收用于多用户多输入和多输出（MU-MIMO）通信的帧的方法，所述方法包括向多个站（STA） ），请求传输数据帧的上行链路多用户请求（UL MU请求）帧，并且基于相同的接收强度在相同的时间段内从多个STA中的每一个接收数据帧，其中， UL MU请求帧包括关于数据帧的发送时间的信息和关于AP中的数据帧的接收强度的信息中的至少一个。
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公开(公告)号：US09398295B2
公开(公告)日：2016-07-19
申请号：US13950986
申请日：2013-07-25
Inventor： Yong Sun Kim , Seung Eun Hong , Kyeongpyo Kim , Hyoung Jin Kwon , Jin Kyeong Kim , Woo Yong Lee
CPC classification number: H04N19/67
Abstract: Disclosed are an Unequal Error Protection (UEP) apparatus and method thereof for transmitting various types of uncompressed video signals in a broadband high frequency wireless system. The UEP apparatus may include a UEP transmission controller to verify a bit separation point of separating a color depth and priority for each pixel element being composed of a video data pixel when video data is inputted, and to control an error correction coding of correcting relatively many errors to be used in information with a high priority for each pixel element, a bit separator to separate the video data pixel through a control of the UEP transmission controller based on the priority for each pixel element, and a channel coding unit to use a corresponding error correction coding through the control of the UEP transmission controller based on the priority for each pixel element.
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公开(公告)号：US11729715B2
公开(公告)日：2023-08-15
申请号：US17510247
申请日：2021-10-25
Inventor： Jae Seung Lee , Mln Ho Cheong , Hyoung Jin Kwon , Hee Jung Yu , Jae Woo Park , Sok Kyu Lee
CPC classification number: H04W52/0216 , H04L5/0055 , H04W74/002 , H04W84/12 , Y02D30/70
Abstract: A method and an apparatus for allocating a flexible transmission slot in a wireless local area network (LAN) system are disclosed. A flexible transmission slot allocation method of an access point (AP) in a wireless local area network (WLAN) system according to an exemplary embodiment includes transmitting a beacon including a traffic indication map (TIM) bit to a station, receiving a power save poll (PS-Poll) from the station in a slot implicitly allocated by the TIM bit, and transmitting an acknowledgement (ACK) including transmission slot allocation information on downlink data to the station.
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公开(公告)号：US11219058B2
公开(公告)日：2022-01-04
申请号：US16730648
申请日：2019-12-30
Inventor： Hyoung Jin Kwon , Jae Seung Lee , Min ho Cheong , Hee Jung Yu , Sok Kyu Lee
Abstract: The present invention relates to a terminal for requesting and acquiring information relating to channel access in a wireless LAN, and to an apparatus for providing information relating to channel access in a wireless LAN. The terminal for requesting and acquiring information relating to channel access in a wireless LAN according to one embodiment of the invention verifies the reception of a beacon during a preset beacon interval, if it is verified that the beacon has not been received, transmits a group and slot information request signal, and receives, from an access point, a group and slot information response signal as a response to the group and slot information request signal.
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