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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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22.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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24.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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公开(公告)号：US08582686B2
公开(公告)日：2013-11-12
申请号：US13749582
申请日：2013-01-24
Inventor： Jong Ee Oh , Min Ho Cheong , Sok Kyu Lee
IPC: H04L27/00
CPC classification number: H04L5/0046 , H03M13/1102 , H03M13/23 , H03M13/256 , H03M13/271 , H03M13/2957 , H03M13/356 , H04B7/04 , H04B7/0697 , H04B7/08 , H04L1/0041 , H04L1/0057 , H04L1/06 , H04L1/0618 , H04L5/0026 , H04L27/186 , H04L27/2627 , H04L27/3416
Abstract: Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: encoding an information bit and generating a block coded with an NCBPSS bit; generating two sub-blocks by parsing the coded block; and transmitting the two sub-blocks to the transmitter. By preventing the bits that are contiguous to the encoding block from having continuous identical reliabilities on a signal constellation, the deterioration of the decoding performance of the transmitter can be prevented.
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Patent Agency Ranking
公开(公告)号：US11916818B2
公开(公告)日：2024-02-27
申请号：US17902951
申请日：2022-09-05
Inventor： Jong Ee Oh , Min Ho Cheong , Sok Kyu Lee
IPC: H04L1/02 , H03M13/25 , H03M13/27 , H03M13/35 , H04B7/04 , H04B7/06 , H04B7/08 , H04L1/00 , H04L1/06 , H04L5/00 , H04L27/18 , H04L27/26 , H04L27/34 , H03M13/11 , H03M13/23 , H03M13/29
CPC classification number: H04L5/0046 , H03M13/256 , H03M13/271 , H03M13/356 , H04B7/04 , H04B7/0697 , H04B7/08 , H04L1/0041 , H04L1/0057 , H04L1/06 , H04L1/0618 , H04L5/0026 , H04L27/186 , H04L27/2627 , H04L27/3416 , H03M13/1102 , H03M13/23 , H03M13/2957
Abstract: Provided are a transmitter and a method for transmitting a data block in a wireless communication system. The method comprises the following steps: deciding the number of bits (s) and encoders (NES) to allocate to one axis of a signal constellation; encoding an information bit based on the s and the NES and generating a coded block; parsing the coded block based on the s and the NES and generating a plurality of frequency sub-blocks; and transmitting the plurality of frequency sub-blocks to a receiver.
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公开(公告)号：US10687342B2
公开(公告)日：2020-06-16
申请号：US16191286
申请日：2018-11-14
Inventor： Hyoung Jin Kwon , Sok Kyu Lee , Jae Seung Lee , Min Ho Cheong
IPC: H04W72/12 , H04L25/02 , H04L5/00 , H04B7/0417 , H04B7/0452 , H04L27/26 , H04W84/12
Abstract: Disclosed are a wireless communication method, and an access point and a station which perform the wireless communication method. A wireless communication method performed by an access point according to an embodiment may include performing channel sounding on a plurality of subchannels, identifying subchannels selected by stations among the subchannels, scheduling communications between the AP and the stations based on the selected subchannels, and transmitting a data frame to the stations through the subchannels based on a scheduling result.
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公开(公告)号：US10454534B2
公开(公告)日：2019-10-22
申请号：US15831243
申请日：2017-12-04
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：US10356810B2
公开(公告)日：2019-07-16
申请号：US15686073
申请日：2017-08-24
Inventor： Hyoung Jin Kwon , Jae Seung Lee , Min Ho Cheong , Hee Jung Yu , Sok Kyu Lee
Abstract: An apparatus and a method of controlling slot-based channel access by an access point (AP) to manage a network in a wireless local area network (WLAN) environment and a slot-based channel access terminal are disclosed. A slot-based channel access control apparatus of a WLAN system according to an exemplary embodiment determines one of each terminal and a group of terminals as a slot allocation target, allocates a slot defined in a beacon interval to the determined terminal or group to distinguish channel access time, and transmits a beacon including information on the allocated slot.
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公开(公告)号：US10356700B2
公开(公告)日：2019-07-16
申请号：US15071128
申请日：2016-03-15
Inventor： Jae Seung Lee , Min Ho Cheong , Je Hun Lee , Ja Beom Gu , Jae Woo Park , Sok Kyu Lee
Abstract: A scanning method in a wireless local area network (WLAN) system is provided. The scanning method includes transmitting, by a station, a probe request frame and receiving, by the station, a probe response frame from an access point (AP). The AP determines whether to transmit the probe response frame in response to the probe request frame using information indicated by the probe request frame.
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