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公开(公告)号：US20240284491A1
公开(公告)日：2024-08-22
申请号：US18561197
申请日：2022-05-24
Inventor： Sung Hyun HWANG , Kyu Min KANG , Jae Cheol PARK , Jin Hyung OH , Dong Woo LIM , Su Na CHOI , Yong Ho KIM
IPC: H04W72/40 , H04W28/02 , H04W72/0446 , H04W74/0833 , H04W84/12
CPC classification number: H04W72/40 , H04W28/0252 , H04W72/0446 , H04W74/0833 , H04W84/12
Abstract: A method and a device for shard communication in a wireless LAN are disclosed. A method of a first STA comprises the steps of: receiving a first frame for allocation of a shared communication period from an AP; identifying the shared communication period on the basis of one or more fields included in the first frame; and performing shared communication with a second STA in the shared communication period, wherein the shared communication period is configured within a TXOP configured between the AP and a third STA.
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公开(公告)号：US20230319737A1
公开(公告)日：2023-10-05
申请号：US18126622
申请日：2023-03-27
Inventor： Jin Hyung OH , Kyu Min KANG , Jae Cheol PARK , Dong Woo LIM , Su Na CHOI , Sung Hyun HWANG
CPC classification number: H04W52/48 , H04W52/242 , H04W52/22
Abstract: A power control method for reducing power consumption of a terminal during retransmission in a wireless communication system using spread spectrum may include: transmitting a response message corresponding to a request message received from a base station to the base station; determining whether an acknowledgement (ACK) message is received from the base station in response to the response message; after the ACK message is received, determining whether the response message is decoded by the base station on the basis of the ACK message; and when it is determined that the response message is not decoded by the base station, setting retransmission transmission power randomly.
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公开(公告)号：US20230095120A1
公开(公告)日：2023-03-30
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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4.发明申请公开(公告)号：US20220322473A1
公开(公告)日：2022-10-06
申请号：US17626423
申请日：2020-07-10
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC CORPORATION FOUNDATION
Inventor： Sung Hyun HWANG , Kyu Min KANG , Jae Cheol PARK , Jin Hyung OH , Su Na CHOI , Yong Ho KIM , Yong Su GWAK
Abstract: The present invention relates to a method for operating a first communication node in a wireless local area network (WLAN) supporting a multi-link operation, comprising the steps of: setting a first transmit window size of a first link for transmitting a plurality of frames to a second communication node; transmitting the plurality of frames through the first link; when the state of a channel detected through channel sensing in the second link is an idle state, setting a transmit opportunity (TXOP) in the channel; and when the transmit opportunity is set, performing an agreement with the second communication node on the size of a second transmit window for transmitting the plurality of frames. Therefore, it is possible to improve the performance of a communication system.
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公开(公告)号：US20200015165A1
公开(公告)日：2020-01-09
申请号：US16506831
申请日：2019-07-09
Inventor： Sung Hyun HWANG , Kyu Min KANG , Sung Jin YOO , Su Na CHOI , Jae Cheol PARK , Yong Ho KIM
Abstract: Disclosed are a low-power communication method and a low-power communication apparatus in a communication system. A low-power station may comprise a processor; a memory storing at least one instruction executable by the processor; a receiver for receiving a WUR PPDU according to the at least one instruction; and a transceiver for transmitting and receiving a legacy PPDU according to the at least one instruction, and the at least one instruction may be configured to cause the receiver to receive a WUR wake-up frame from the access point in an on-duration within a WUR duty cycle period; when the WUR wake-up frame is received, cause the processor to transmit a first signal requesting wake-up to the transceiver; and when the first signal is received, cause the transceiver to transition from a sleep state to a wake-up state at a TWT configured between the access point and the low-power station.
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Patent Agency Ranking
公开(公告)号：US20170230129A1
公开(公告)日：2017-08-10
申请号：US15217884
申请日：2016-07-22
Inventor： Sung Jin YOO , Kyu Min KANG , Seung Keun PARK , Jae Cheol PARK , Jung Sun UM , Hoi Yoon JUNG
Abstract: Provided is a PIM detection apparatus including: a tone signal input unit configured to apply a tone signal having a first frequency characteristic to a test target apparatus; a sequence signal input unit configured to apply a sequence signal having a second frequency characteristic to the test target apparatus; a PIM detector configured to receive a Passive Intermodulation (PIM) signal from the test target apparatus, and to detect a delay time and a size of the PIM signal based on the sequence signal; and a PIM position determiner configured to determine a PIM occurrence position by using the delay time and the size of the PIM signal.
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7.发明申请METHOD OF ALLOCATING RADIO RESOURCES AND APPARATUS OF ALLOCATING RADIO RESOURCES IN COGNITIVE RADIO SMALL-CELL NETWORKS 有权分配无线电资源的方法和在无线电小型网络中分配无线电资源的设备公开(公告)号：US20150208422A1
公开(公告)日：2015-07-23
申请号：US14268582
申请日：2014-05-02
Inventor： Jae Cheol PARK , Kyu Min KANG , Sang In CHO , Dong Hun LEE , Byung Jang JEONG
CPC classification number: H04W72/082 , H04W16/16 , H04W52/241 , H04W52/243 , H04W52/244 , H04W52/265 , H04W52/267 , H04W52/346
Abstract: Disclosed is a method of allocating radio resources, including: acquiring available channel information of a cognitive radio small cell; analyzing a channel characteristic based on the available channel information and dividing a required transmission rate of the cognitive radio small cell into required transmission rates for each available channel; and performing a power control for each available channel based on the divided required transmission rates for each available channel. The method of allocating radio resources may be performed under an interference environment in which a plurality of cognitive radio small cells is present and the plurality of cognitive radio small cells shares an available channel.
Abstract translation: 公开了一种分配无线电资源的方法，包括：获取认知无线电小区的可用信道信息; 基于所述可用信道信息分析信道特性并将所述认知无线电小区的所需传输速率划分为每个可用信道的所需传输速率; 并且基于每个可用信道的所划分的所需传输速率对每个可用信道执行功率控制。 分配无线电资源的方法可以在其中存在多个认知无线电小小区并且多个认知无线电小区分享可用信道的干扰环境下执行。
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8.发明公开公开(公告)号：US20230156795A1
公开(公告)日：2023-05-18
申请号：US17916406
申请日：2021-04-02
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Sung Hyun HWANG , Kyu Min KANG , Jae Cheol PARK , Jin Hyung OH , Dong Woo LIM , Su Na CHOI , Yong Ho KIM , Han Seul HONG
IPC: H04W74/08
CPC classification number: H04W74/0816 , H04W84/12
Abstract: Disclosed are a method and apparatus for transmitting and receiving data in a communication system supporting multiple links. A method for operation of a first device comprises the steps of: transmitting, in a first link from among multiple links, a first RTS frame to a second device; receiving, from the second device in the first link, a first CTS frame that is a response to the first RTS frame; when the first CTS frame is received, transmitting, in the first link, a first data frame to the second device; and transmitting, in a second link during transmission of the first data frame, a second RTS frame to the second device.
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9.发明申请APPARATUS AND METHOD FOR COEXISTENCE OF LTE-U AND WIFI SERVICES IN UNLICENSED BANDS 审中-公开未经授权的银行LTE-U和WIFI服务共同的装置和方法公开(公告)号：US20160242183A1
公开(公告)日：2016-08-18
申请号：US15045764
申请日：2016-02-17
Inventor： Kyu Min KANG , Seung Keun PARK , Jae Cheol PARK , Jung Sun UM , Sung Jin YOO , Dong Hun LEE , Hoi Yoon JUNG , Su Na CHOI , Sung Hyun HWANG
CPC classification number: H04W72/1215 , H04W72/1226
Abstract: Disclosed are an apparatus and a method for coexistence of heterogeneous services of a user terminal, which can enhance performance of a wireless communication network by simultaneously providing heterogeneous services such as an LTE-U service and a WiFi service to coexist without signal interference in unlicensed bands through effectively performing selection of a frequency band and selection of a transmission spectrum type in respective service modules of the user terminal.
Abstract translation: 公开了一种用于用户终端的异构服务共存的装置和方法，其可以通过同时提供诸如LTE-U服务和WiFi服务的异构服务来提高无线通信网络的性能，以在未许可频带中没有信号干扰的情况下共存 通过在用户终端的各个服务模块中有效地执行频带的选择和发送频谱类型的选择。
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10.发明申请METHOD AND APPARATUS FOR COMMUNICATION FOR COEXISTING WITH WIRELESS-LAN IN NON-LICENSED BAND 审中-公开用于在非授权带中与无线局域网通信的通信方法和装置公开(公告)号：US20160135135A1
公开(公告)日：2016-05-12
申请号：US14937391
申请日：2015-11-10
Inventor： Sung Jin YOO , Kyu Min KANG , Seung Keun PARK , Jae Cheol PARK , Jung Sun UM
CPC classification number: H04W56/001 , H04W16/14 , H04W74/0816 , H04W84/12
Abstract: Disclosed is a communication method for coexisting with a non-licensed band communication system of a non-licensed band in a licensed band communication system. The method includes: transmitting a signal by a transmitter in order to operate in a non-licensed band, when the signal is a transmission target signal having frames and a wireless local area network (WLAN) preamble signal is inserted to the front of each frame of the transmission target signal; and extracting the WLAN preamble signal from the signal of the transmitter by a receiver to synchronize with the transmitter.
Abstract translation: 公开了一种与许可频带通信系统中的非许可频带的非许可频带通信系统共存的通信方法。 该方法包括：当信号是具有帧的传输目标信号并且将无线局域网（WLAN）前导码信号插入到每个帧的前面时，由发射机发送信号以便在非许可频带中操作 的传输目标信号; 以及由接收机从所述发射机的信号中提取所述WLAN前导信号以与所述发射机同步。
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