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公开(公告)号：US10028276B2
公开(公告)日：2018-07-17
申请号：US15333456
申请日：2016-10-25
Inventor： Wun Cheol Jeong , Joon Hee Lee
Abstract: A method of allocating resources in a multi-hop wireless sensor network includes (A) when two arbitrary adjacent links among links connecting all nodes have a violation relationship where the two arbitrary adjacent links occupy the same time slot, by a network coordinator node, allocating different time slots to the two arbitrary adjacent links according to a resource allocation request command message from each of nodes configuring the multi-hop wireless sensor network, (B) when two arbitrary links which are not adjacent to each other among the links are within a communication distance, by the network coordinator node, allocating different frequency channels to the two arbitrary links, and (C) when resource allocation for all of the links is completed according to steps (A) and (B), checking whether an end-to-end maximum allowable time required by each of paths established by the links is satisfied.
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公开(公告)号：US10716141B2
公开(公告)日：2020-07-14
申请号：US15822403
申请日：2017-11-27
Inventor： Wun Cheol Jeong , Byeong Cheol Choi , Tae Joon Park , Kye Seon Lee
Abstract: A method of controlling a wireless communication network, performed by a server, includes determining neighbor base stations adjacent to a target base station based on a connection relationship between a plurality of base stations; setting at least two reference base stations based on hop distances between the neighbor base stations; grouping terminals connected to the target base station into at least two groups based on information of the at least two reference base stations, and allocating a different time resource to each of the at least two groups.
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公开(公告)号：US10136424B2
公开(公告)日：2018-11-20
申请号：US14383019
申请日：2013-03-08
Inventor： Wun Cheol Jeong , Chang Sub Shin , Tae Joon Park , Ho Yong Kang , In Hwan Lee , Cheol Sig Pyo
Abstract: A method of configuring a multi-superframe is provided. The method includes setting at least one parameter for configuring the multi-superframe, and configuring the multi-superframe corresponding to the at least one parameter, wherein the at least one parameter includes a superframe order (SO), a beacon order (BO), and a multi-superframe order (MO), in a form of positive integers, and the setting includes setting the MO to have a value higher than the BO.
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公开(公告)号：US12197234B2
公开(公告)日：2025-01-14
申请号：US17381385
申请日：2021-07-21
Inventor： Young Il Kim , Seong Hee Park , Soon Yong Song , Geon Min Yeo , Il Woo Lee , Wun Cheol Jeong , Tae Wook Heo
IPC: G05D1/00 , B64C39/02 , B64D47/08 , G06F7/58 , G07C5/00 , G07C5/08 , H04R1/32 , H04W4/40 , B64U101/31
Abstract: A reconnaissance UAV and a surveillance flight method of the reconnaissance UAV which can reduce a number of required reconnaissance UAVs are provided. The surveillance flight method for detecting an unauthorized UAV includes: defining multiple flight passages in a UAV no-fly zone for a plurality of reconnaissance UAVs; controlling each of the plurality of reconnaissance UAVs to fly across adjacent flight passages at an interval by crossing a border of the adjacent flight passages; and controlling at least one of an image sensor and a noise sensor mounted on the reconnaissance UAV to dynamically change a direction detection thereof.
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公开(公告)号：US11869365B2
公开(公告)日：2024-01-09
申请号：US17028345
申请日：2020-09-22
Inventor： Young Il Kim , Seong Hee Park , Soon Yong Song , Geon Min Yeo , Il Woo Lee , Wun Cheol Jeong , Tae Wook Heo
CPC classification number: G08G5/0026 , G06V20/13 , G06V20/52 , G08G5/0073 , H04N7/18 , H04N23/66 , H04N23/69 , H04N23/695 , H04N23/90
Abstract: Provided is a method and apparatus for detecting an unmanned aerial vehicle (UAV). The method of detecting a UAV includes receiving images from one or more cameras positioned in a UAV protected area; analyzing the received image to extract a UAV from the received image; and providing data related to the extracted UAV to train a UAV detection model, wherein photographing times or photographing positions of the one or more cameras are variably controlled.
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Patent Agency Ranking
公开(公告)号：US11116022B2
公开(公告)日：2021-09-07
申请号：US16733153
申请日：2020-01-02
Inventor： Wun Cheol Jeong , Eun Hee Kim , Tae Joon Park , Geon Min Yeo , Kye Seon Lee
Abstract: Disclosed are methods and apparatuses for relaying messages in LPWAN. An operation method of a terminal may comprise transmitting a first join request message to a base station without IQ inversion; when a number of failed transmissions of the first join request message is greater than or equal to a preconfigured threshold, transmitting an IQ-inverted second join request message to a relay; and receiving a join response message from the relay that is a response to the second join request message. Accordingly, the performance of the communication system can be improved.
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公开(公告)号：US10939452B2
公开(公告)日：2021-03-02
申请号：US16669074
申请日：2019-10-30
Inventor： Jae Seung Lee , Min ho Cheong , Hyoung Jin Kwon , Sok Kyu Lee , Wun Cheol Jeong , Chang Sub Shin , Cheol Sig Pyo
Abstract: Provided are a method of allocating resources in a wireless local area network (WLAN) system and the WLAN system including an access point (AP) to allocate a resource for communication between a relay and a station associated with the relay, the relay to allocate a restricted access window (RAW) or a slot for communication with a station based on the allocated resource, and the station to communicate with the relay based on the allocated RAW or the allocated slot.
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公开(公告)号：US10231267B2
公开(公告)日：2019-03-12
申请号：US15784310
申请日：2017-10-16
Inventor： Kye Seon Lee , Tae Joon Park , Byeong Cheol Choi , Wun Cheol Jeong
Abstract: An operation method of a server in a communication network includes receiving a connection request message from each of a plurality of gateways connected to the server; identifying a service level of a terminal that has transmitted the connection request message based on information included in the connection request message; selecting a first gateway corresponding to the service level among the plurality of gateways as a gateway to which the terminal is to be connected; and transmitting a connection approval message, which is a response to the connection request message, to the terminal through the first gateway.
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公开(公告)号：US10070448B2
公开(公告)日：2018-09-04
申请号：US15603260
申请日：2017-05-23
Inventor： Jae Seung Lee , Min Ho Cheong , Hyoung Jin Kwon , Sok Kyu Lee , Wun Cheol Jeong , Chang Sub Shin , Cheol Sig Pyo
IPC: G08C17/00 , H04W72/08 , H04W72/04 , H04B7/155 , H04W64/00 , H04W52/02 , H04W74/00 , H04W84/04 , H04W84/12
Abstract: Provided are a method of allocating resources in a wireless local area network (WLAN) system and the WLAN system including an access point (AP) to allocate a resource for communication between a relay and a station associated with the relay, the relay to allocate a restricted access window (RAW) or a slot for communication with a station based on the allocated resource, and the station to communicate with the relay based on the allocated RAW or the allocated slot.
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公开(公告)号：US09693362B2
公开(公告)日：2017-06-27
申请号：US14648206
申请日：2013-11-29
Inventor： Jae Seung Lee , Min Ho Cheong , Hyoung Jin Kwon , Sok Kyu Lee , Wun Cheol Jeong , Chang Sub Shin , Cheol Sig Pyo
IPC: G08C17/00 , H04W72/08 , H04W72/04 , H04B7/155 , H04W64/00 , H04W52/02 , H04W74/00 , H04W84/04 , H04W84/12
CPC classification number: H04W72/082 , H04B7/15507 , H04W52/0203 , H04W64/003 , H04W72/0446 , H04W74/006 , H04W84/047 , H04W84/12 , Y02D70/00 , Y02D70/1224 , Y02D70/1262 , Y02D70/142 , Y02D70/146
Abstract: Provided are a method of allocating resources in a wireless local area network (WLAN) system and the WLAN system including an access point (AP) to allocate a resource for communication between a relay and a station associated with the relay, the relay to allocate a restricted access window (RAW) or a slot for communication with a station based on the allocated resource, and the station to communicate with the relay based on the allocated RAW or the allocated slot.
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