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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：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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5.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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Patent Agency Ranking
6.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：US10270568B2
公开(公告)日：2019-04-23
申请号：US14743800
申请日：2015-06-18
Inventor： Jong Ee Oh , Min Ho Cheong , Sok Kyu Lee
IPC: H04L5/00 , H03M13/25 , H03M13/27 , H03M13/35 , H04B7/06 , H04L1/06 , H04B7/08 , H04L27/18 , H04L27/26 , H04L27/34 , H04L1/00 , H04B7/04 , H03M13/11 , H03M13/23 , H03M13/29
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：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：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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