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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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公开(公告)号：US10033501B2
公开(公告)日：2018-07-24
申请号：US15061193
申请日：2016-03-04
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
Abstract: Disclosed are a frame transmission method and a communication device performing the same. The communication device may transmit a null data packet (NDP)-announcement (NDP-A) including information on a plurality of communication devices participating in interference alignment and transmit 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：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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35.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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Patent Agency Ranking
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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37.发明授权公开(公告)号：US09374736B2
公开(公告)日：2016-06-21
申请号：US13890190
申请日：2013-05-08
Inventor： Min Ho Cheong , Jae Seung Lee , Sok Kyu Lee
CPC classification number: H04W28/16 , H04L5/0044 , H04L5/0094 , H04L25/0224 , H04L25/03891 , H04L27/2613 , H04L27/2621 , H04W28/20
Abstract: The phase rotation relates to an apparatus and method of indicating a bandwidth in a wireless communication system. This disclosure discloses a wireless device comprising a transmission transmitting and receiving a wireless signal and a processor operating in operative connection with the transmission, wherein the processor generates a PPDU (physical protocol data unit) to which a phase rotation application is selectively applied depending on a case of bandwidth indication or a case of no bandwidth indication.
Abstract translation: 相位旋转涉及在无线通信系统中指示带宽的装置和方法。 本公开公开了一种无线设备，包括发送和接收无线信号的传输和与传输操作连接的处理器，其中处理器生成PPDU（物理协议数据单元），根据 带宽指示的情况或无带宽指示的情况。
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38.发明授权Method and apparatus of peer link setting, and method and apparatus of channel switching, in wireless mesh network 有权无线网状网络中对等链路设置的方法和装置，信道切换的方法和装置公开(公告)号：US09215747B2
公开(公告)日：2015-12-15
申请号：US13651306
申请日：2012-10-12
Inventor： Jae Seung Lee , Sok Kyu Lee
IPC: H04L12/58 , H04W4/00 , H04L12/56 , G06F15/16 , H04W40/00 , H04W84/12 , H04L12/701 , H04W8/22 , H04W16/32 , H04W84/18
Abstract: A method and apparatus for configuring mesh peer link and a method and apparatus for switching channel in wireless mesh network are provided. A method of configuring a mesh peer link in a wireless mesh network includes a first mesh station transmitting a mesh peering open frame to a second mesh station, and the first mesh station receiving a mesh peering confirm frame from the second mesh station in response to the mesh peering open frame, wherein the first mesh station and the second mesh station support a very high throughput (VHT), and wherein the mesh peering open frame and the mesh peering confirm frame comprise a VHT capability information element.
Abstract translation: 提供了一种用于配置网状对等链路的方法和装置，以及用于在无线网状网络中切换信道的方法和装置。 一种在无线网状网络中配置网状对等链路的方法包括：向第二网状站发送网状对等开放帧的第一网状站，以及响应于所述第二网状站从所述第二网孔站接收网状对等确认帧 网格对等开放框架，其中第一网格站和第二网格站支持非常高的吞吐量（VHT），并且其中网格对等开放框架和网格对准确认帧包括VHT能力信息元素。
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公开(公告)号：US12114261B2
公开(公告)日：2024-10-08
申请号：US18348240
申请日：2023-07-06
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：US11617145B2
公开(公告)日：2023-03-28
申请号：US17096182
申请日：2020-11-12
Inventor： Chan Bok Jeong , Hoo Sung Lee , Moon Sik Lee , Jae Woo Park , Jae Seung Lee
IPC: H04W80/02 , H04W56/00 , H04L5/00 , H04W72/1263 , H04W64/00 , H04W72/0446
Abstract: A timing control method, performed by a first DU including a processor and a modem in a base station supporting function-splitting, includes obtaining, by the processor, first time information from a CU included in the base station; obtaining, by the processor, synchronization information with a first system based on the first time information; identifying, by the processor, a change time point of an SFN based on the synchronization information; generating, by the processor, a first timing control signal including a signal indicating a changed SFN and a first tick signal having a same periodicity as a change periodicity of the SFN when the SFN is changed; and providing, by the processor, the first timing control signal to the modem.
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