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公开(公告)号：US12223844B2
公开(公告)日：2025-02-11
申请号：US17945255
申请日：2022-09-15
Inventor： Su Na Choi , Kyu Min Kang , Jae Cheol Park , Jin Hyung Oh , Dong Woo Lim , Sung Hyun Hwang
Abstract: A method of managing identification information of a drone may include: generating an access message, wherein the access message includes an identifier for the ground identification device, which is a transmitter, an identifier for a receiver, an execution function command for classifying and defining a function to be performed, a serial number for transmitting information sequentially and retransmitting the information when transmission fails, data size information for informing a size of data to be transmitted, and transmission data; and transmitting the access message to an integrated management system corresponding to the identifier for the receiver.
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公开(公告)号：US09642070B2
公开(公告)日：2017-05-02
申请号：US14621523
申请日：2015-02-13
Inventor： Hyun Duk Kang , Gwang Zeen Ko , Jin Hyung Oh , Igor Kim , Myung Sun Song
Abstract: Disclosed are a method for avoiding interference in a wireless local area network system and an apparatus for performing the same. The method for avoiding interference by an access point in a wireless local area network system, includes receiving channel scan results from a station associated with the access point; setting connection with an adjacent access point based on the channel scan results; determining an access point to be associated with the station through negotiation with the adjacent access point; and transmitting a reassociation request message to request reassociation with the adjacent access point to the station when the negotiation with the adjacent access point succeeds.
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3.发明授权公开(公告)号：US10111253B2
公开(公告)日：2018-10-23
申请号：US15172466
申请日：2016-06-03
Inventor： Jin Hyung Oh , Sang Woon Jeon , Myung Sun Song
Abstract: Provided is a communication method in a wireless communication system using an interference alignment. The method includes: receiving, by a first AP, a data stream by using N1 (natural number) first reception antennas, and receiving, by a second AP, the data stream by using N2 (natural number) second reception antennas, in a wireless communication system including the first AP and the second AP which receive the data stream through a transmission beam which one or more user terminals having m (natural number) transmission antennas within a given number transmit; and updating to selectively add a part of user terminals which are newly connected to the first AP and the second AP to a set of connected user terminal, and transmitting, by each terminal of the set of connected user terminal, linearly independent transmission beams by applying an interference alignment with respect to a plurality of the first and the second reception antennas for the updated set of connected user terminal.
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公开(公告)号：US09843949B2
公开(公告)日：2017-12-12
申请号：US14744821
申请日：2015-06-19
Inventor： Jin Hyung Oh , Bang Chul Jung , Hu Jin , Myung Sun Song
CPC classification number: H04W24/08 , H04B7/0695 , H04W24/02 , H04W74/006 , H04W74/0833
Abstract: Provided is a frame transmission method of interference alignment (IA) and controlling, the method including calculating a channel matrix of a basic service set (BSS) by measuring channel information between an access point and a user terminal, performing singular value decomposition (SVD) based on the calculated channel matrix, selecting a beamforming vector in consideration of an interference amount associated with another access point based on the SVD performed by the channel matrix, and calculating a leakage interference (LIF) value based on the selected beamforming vector.
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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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Patent Agency Ranking
公开(公告)号：US10405372B2
公开(公告)日：2019-09-03
申请号：US15722492
申请日：2017-10-02
Inventor： Jin Hyung Oh , Gwang Zeen Ko , Hyun Duk Kang , Igor Kim , Myung Sun Song
Abstract: Provided are a frame transmission method performed in an access point (AP), a frame reception method performed in a terminal, and an AP. The frame transmission method performed in an AP includes acquiring a channel for transmitting a first data unit of a first terminal, when a data unit to be transmitted to at least one terminal other than the first terminal is in the AP, generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including the first data unit and the data unit to be transmitted to the at least one terminal, and transmitting the PPDU to the first terminal and the at least one terminal. Accordingly, it is possible to improve the performance of a wireless local area network (WLAN).
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公开(公告)号：US10045240B2
公开(公告)日：2018-08-07
申请号：US15805787
申请日：2017-11-07
Inventor： Jin Hyung Oh , Bang Chul Jung , Hu Jin , Myung Sun Song
Abstract: Provided is a frame transmission method of interference alignment (IA) and controlling, the method including calculating a channel matrix of a basic service set (BSS) by measuring channel information between an access point and a user terminal, performing singular value decomposition (SVD) based on the calculated channel matrix, selecting a beamforming vector in consideration of an interference amount associated with another access point based on the SVD performed by the channel matrix, and calculating a leakage interference (LIF) value based on the selected beamforming vector.
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公开(公告)号：US09838090B2
公开(公告)日：2017-12-05
申请号：US14916920
申请日：2014-09-05
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
CPC classification number: H04B7/024 , H04B7/0452 , H04B7/0617 , H04L1/00 , H04L1/1685 , H04W48/00 , H04W84/12 , H04W88/08
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：US11160135B2
公开(公告)日：2021-10-26
申请号：US16555942
申请日：2019-08-29
Inventor： Jin Hyung Oh , Gwang Zeen Ko , Hyun Duk Kang , Igor Kim , Myung Sun Song
Abstract: Provided are a frame transmission method performed in an access point (AP), a frame reception method performed in a terminal, and an AP. The frame transmission method performed in an AP includes acquiring a channel for transmitting a first data unit of a first terminal, when a data unit to be transmitted to at least one terminal other than the first terminal is in the AP, generating a physical layer convergence procedure (PLCP) protocol data unit (PPDU) including the first data unit and the data unit to be transmitted to the at least one terminal, and transmitting the PPDU to the first terminal and the at least one terminal. Accordingly, it is possible to improve the performance of a wireless local area network (WLAN).
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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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