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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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13.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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15.发明申请公开(公告)号：US20140148113A1
公开(公告)日：2014-05-29
申请号：US13911501
申请日：2013-06-06
Inventor： Su Na CHOI , Seung Keun PARK
IPC: H04B1/10
CPC classification number: H04B1/1027
Abstract: An apparatus and method for evaluating statistical interference concerning a multi-source noise environment of an electromagnetic (EM) zone are disclosed. The apparatus for evaluating statistical interference may include a receiver to receive an EM wave in a preset frequency band, a spectrum analyzer to analyze the received EM wave and to measure interference in the preset frequency band, a frequency selector to select an interest frequency in the frequency band based on a level of the measured interference, an amplitude probability distribution (APD) measurement unit to measure an APD of an interference signal with respect to the interest frequency, and a comparator to compare the measured APD to a preset limit and to draw a probability of the limit or higher of interference occurring.
Abstract translation: 公开了一种用于评估关于电磁（EM）区域的多源噪声环境的统计干扰的装置和方法。 用于评估统计干扰的装置可以包括：接收器，用于接收预置频带中的EM波;频谱分析器，用于分析所接收的EM波并测量预置频带中的干扰;频率选择器，用于在 基于所测量的干扰水平的频带，用于测量相对于兴趣频率的干扰信号的APD的幅度概率分布（APD）测量单元，以及将测量的APD与预设极限进行比较并绘制 干扰发生的极限或更高的概率。
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Patent Agency Ranking
16.发明公开公开(公告)号：US20240340975A1
公开(公告)日：2024-10-10
申请号：US18578703
申请日：2022-07-19
Inventor： Sung Hyun HWANG , Kyu Min KANG , Jae Cheol PARK , Jin Hyung OH , Dong Woo LIM , Su Na CHOI , Yong Ho KIM
IPC: H04W74/0833 , H04L1/00 , H04W74/08 , H04W74/0816
CPC classification number: H04W74/085 , H04L1/0008 , H04W74/0816 , H04W74/0891
Abstract: A method and apparatus for NSTR communication in a communication system supporting multiple links are disclosed. A method for a first device comprises the steps of: if a first backoff operation has succeeded on a first link belonging to a first pair of NSTR links on which an STR operation of a second device is not supported, transmitting a first data frame to the second device on the first link; performing a second backoff operation for transmission of a second data frame on a second link belonging to the first pair of NSTR links; if the second backoff operation has succeeded on the second link, identifying whether or not a transmission operation of the second device is performed on the first link belonging to the pair of NSTR links; and transmitting the second data frame to the second device on the second link.
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公开(公告)号：US20240340950A1
公开(公告)日：2024-10-10
申请号：US18291550
申请日：2022-08-11
Inventor： Sung Hyun HWANG , Kyu Min KANG , Jae Cheol PARK , Jin Hyung OH , Dong Woo LIM , Su Na CHOI , Yong Ho KIM
IPC: H04W74/0816
CPC classification number: H04W74/0816
Abstract: Disclosed are a method and device for bidirectional communication in a wireless LAN. The method of a first STA comprises the steps of: receiving, from an AP, a first frame including an information element indicating TXOP sharing; confirming a shared TXOP duration on the basis of the first frame; and communicating with a second STA within the shared TXOP duration.
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公开(公告)号：US20220338251A1
公开(公告)日：2022-10-20
申请号：US17761029
申请日：2020-09-16
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 , Su Na CHOI , Yong Ho KIM , Yong Su GWAK
IPC: H04W74/04 , H04W74/00 , H04B7/0452
Abstract: A method for sharing a multilink in a next-generation wireless LAN is disclosed. An operation method of a first communication node comprises the steps of: setting a transmission interval; communicating with a second communication node by using a first link and a second link in the transmission interval; sharing the transmission interval with a third communication node; and communicating with the second communication node by using the first link in the transmission interval.
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19.发明申请公开(公告)号：US20220287121A1
公开(公告)日：2022-09-08
申请号：US17624248
申请日：2020-07-10
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 , Su Na CHOI , Yong Ho KIM , Han Seul HONG
Abstract: The present invention relates to an operating method of a first communication node in a communication system, comprising the steps of: negotiating with a second communication node with respect to a parameter for multi-link transmission; determining, on the basis of the parameter, a plurality of links for performing the multi-link transmission, and the transmission method by which the multi-link transmission is performed; and transmitting, in the plurality of links, a data frame to the second communication node by means of the transmission method. Therefore, the communication node can efficiently set and change links.
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公开(公告)号：US20180110090A1
公开(公告)日：2018-04-19
申请号：US15562005
申请日：2016-01-28
Inventor： Jung Sun UM , Kyu Min KANG , Seung Keun PARK , Jae Cheol PARK , Sung Jin YOO , Dong Hun LEE , Hoi Yoon JUNG , Su Na CHOI , Sung Hyun HWANG
Abstract: The present invention relates to a device and method for allocating a coexistence resource in an unlicensed band. The device according to the present invention comprises: a frame configuration unit for configuring a subframe in which data and a reference signal for a channel in an unlicensed band are allocated, and allocating a part of the symbols of the subframe as a coexistence resource; a signal detection unit for detecting a signal of another LTE system or Wi-Fi system during a transmission idle period where the coexistence resource is allocated; and a transmission processing unit which, when the signal of another system is detected during the transmission idle period, does not occupy a resource for the next subframe, and when the occupation of the coexistence resource by the another system has ended, occupies the resource for the next subframe.
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