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公开(公告)号：US11888774B2
公开(公告)日：2024-01-30
申请号：US17500402
申请日：2021-10-13
Inventor： Kyeong Pyo Kim , Woo Ram Shin , Young Jo Ko , Kap Seok Chang
IPC: H04L5/00 , H04W72/0446 , H04L25/02
CPC classification number: H04L5/0048 , H04L25/0224 , H04W72/0446
Abstract: An operation method of a transmitter in a communication system may comprise: configuring a first reference signal region for transmission of a first reference signal in the delay-Doppler domain; arranging the first reference signal having a sequence form in a specific region within the first reference signal region; transforming a delay-Doppler domain signal including the first reference signal into a time domain signal; and transmitting the time domain signal to a receiver.
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公开(公告)号：US11870546B2
公开(公告)日：2024-01-09
申请号：US17892024
申请日：2022-08-19
Inventor： Kap Seok Chang , Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Hyo Seok Yi , Chan Bok Jeong , Young Hoon Kim , Seung Chan Bang
IPC: H04B7/26 , H04J11/00 , H04L27/26 , H04W72/23 , H04L7/04 , H04W72/0446 , H04W48/16 , H04W56/00 , H04B1/7073 , H04W88/08
CPC classification number: H04B7/2656 , H04J11/0069 , H04L7/043 , H04L27/2613 , H04L27/2655 , H04W48/16 , H04W56/00 , H04W72/0446 , H04W72/23 , H04B1/70735 , H04W88/08
Abstract: The present application relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal; generating a third scrambling sequence determined by the first short sequence and a fourth scrambling sequence determined by the second short sequence; scrambling the short sequences with the respective scrambling sequences; and mapping the secondary synchronization signal that includes the first short sequence scrambled with the first scrambling sequence, the second short sequence scrambled with the second scrambling sequence and the third scrambling sequence, the second short sequence scrambled with the first scrambling sequence and the first short sequence scrambled by the second scrambling sequence and the fourth scrambling sequence to a frequency domain.
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公开(公告)号：US10383041B2
公开(公告)日：2019-08-13
申请号：US15890114
申请日：2018-02-06
Inventor： Kap Seok Chang , Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Hyo Seok Yi , Chan Bok Jeong , Young Hoon Kim , Seung Chan Bang
IPC: H04W48/16 , H04B7/26 , H04J11/00 , H04L7/04 , H04L27/26 , H04W72/04 , H04W56/00 , H04B1/7073 , H04W88/08
Abstract: The present application relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal; generating a third scrambling sequence determined by the first short sequence and a fourth scrambling sequence determined by the second short sequence; scrambling the short sequences with the respective scrambling sequences; and mapping the secondary synchronization signal that includes the first short sequence scrambled with the first scrambling sequence, the second short sequence scrambled with the second scrambling sequence and the third scrambling sequence, the second short sequence scrambled with the first scrambling sequence and the first short sequence scrambled by the second scrambling sequence and the fourth scrambling sequence to a frequency domain.
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公开(公告)号：USRE49665E1
公开(公告)日：2023-09-19
申请号：US16813737
申请日：2020-03-10
Inventor： Kap Seok Chang , Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Hyo Seok Yi , Moon Sik Lee , Young Hoon Kim , Seung Chan Bang
CPC classification number: H04W56/00 , H04L27/2613 , H04L27/2655
Abstract: The present invention relates to a method for generating a downlink frame including generating a first short sequence and a second short sequence indicating cell group information, generating a first scrambling sequence determined by the first synchronization signal, generating a second scrambling sequence determined by the first short sequence, scrambling the first short sequence with the first scrambling sequence, scrambling the second short sequence with at least the second scrambling sequence, and mapping a second synchronization signal including the scrambled first short sequence and the scrambled second short sequence in the frequency domain.
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公开(公告)号：US11411636B2
公开(公告)日：2022-08-09
申请号：US17021030
申请日：2020-09-15
Inventor： Kap Seok Chang , Hyoung Jin Kwon , Sung Geun Jin , Yong Sun Kim , Seung Eun Hong , Woo Yong Lee , Hyun Kyu Chung
Abstract: Provided is an apparatus and method for wideband short-range wireless communication using a directional antenna in a millimeter wave band, and the method for wideband short-range wireless communication according to an embodiment may determine a first time interval and a second time interval for a cooperated data frame transfer based on a packet transmission time at each transmission from a source node to a destination node, transmit a frame to a relay node through an antenna pattern directed towards the relay node at a start point of the first time interval, and transmit the frame to the destination node through an antenna pattern directed towards the destination node after a predetermined period of time from a start point of the second time interval.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11140646B2
公开(公告)日：2021-10-05
申请号：US16884498
申请日：2020-05-27
Inventor： Kap Seok Chang , Young Jo Ko , Yong Sun Kim , Sang Ho Lee
IPC: H04W56/00
Abstract: Disclosed are a method and an apparatus for transmitting and receiving a synchronization signal in a communication system. According to an exemplary embodiment of the present disclosure, a method of transmitting a first synchronization signal, performed by a base station in the communication system, may comprise generating a base sequence; generating a modified sequence by inverting polarity of the base sequence; mapping the base sequence and the modified sequence to a first frequency region having a frequency higher than a center subcarrier and a second frequency region having a frequency lower the center subcarrier, so that the base sequence and the modified sequence are symmetric centering the center subcarrier located at a center frequency of a frequency domain of the synchronization signal; and transmitting the synchronization signal comprising the base sequence and the modified sequence to a terminal. Therefore, performance of the communication system can be improved.
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公开(公告)号：US10764790B2
公开(公告)日：2020-09-01
申请号：US15904279
申请日：2018-02-23
Inventor： Hyoung Jin Kwon , Yong Sun Kim , Kap Seok Chang , Seung Eun Hong , Sung Geun Jin , Woo Yong Lee , Hyun Kyu Chung
IPC: H04B7/24 , H04J1/00 , H04W28/26 , H04W16/26 , H04W88/04 , H04B7/155 , H04W28/16 , H04W40/22 , H04W72/04 , H04W84/04 , H04W84/12
Abstract: Provided is a communication method of a coordinator in a wireless networks system that uses a reservation-based media access control (MAC). The communication method includes receiving, from a source device, a frame that requests a reservation resource for a relay device, to enable a frame that the source device transmits to a destination device to be relayed via the relay device, and allocating the reservation resource for the relay device, in response to the request.
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公开(公告)号：USRE47910E1
公开(公告)日：2020-03-17
申请号：US15461510
申请日：2017-03-17
Inventor： Kap Seok Chang , Il Gyu Kim , Hyeong Geun Park , Young Jo Ko , Hyo Seok Yi , Moon Sik Lee , Young Hoon Kim , Seung Chan Bang
Abstract: The present invention relates to a method for generating a downlink frame including generating a first short sequence and a second short sequence indicating cell group information, generating a first scrambling sequence determined by the first synchronization signal, generating a second scrambling sequence determined by the first short sequence, scrambling the first short sequence with the first scrambling sequence, scrambling the second short sequence with at least the second scrambling sequence, and mapping a second synchronization signal including the scrambled first short sequence and the scrambled second short sequence in the frequency domain.
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9.发明授权Wireless communication method and apparatus for transmitting and receiving frame through relay 有权用于通过继电器发送和接收帧的无线通信方法和装置公开(公告)号：US09590719B2
公开(公告)日：2017-03-07
申请号：US14472298
申请日：2014-08-28
Inventor： Kap Seok Chang , Hyoung Jin Kwon , Sung Geun Jin , Yong Sun Kim , Seung Eun Hong , Woo Yong Lee , Hyun Kyu Chung
IPC: H04W48/16 , H04W40/24 , H04W40/12 , H04W24/00 , H04W72/08 , H04B7/14 , H04B7/155 , H04B7/26 , H04W40/22
CPC classification number: H04B7/15528 , H04B7/15592 , H04B7/2606 , H04W40/22 , Y02D70/00 , Y02D70/142 , Y02D70/39 , Y02D70/446 , Y02D70/449
Abstract: The present invention provides a wireless communication method used for transmitting and receiving a relay in a wireless local area network system. The wireless local area network system according to an embodiment of the present invention relates to a wireless communication method of setting a relay link through a relay and setting a transmission time point at which a data frame is transmitted in a source device by recognizing a propagation delay between devices, and the like when an operation mode of the set relay corresponds to a cooperating mode.
Abstract translation: 本发明提供一种用于在无线局域网系统中发送和接收中继的无线通信方法。 根据本发明的实施例的无线局域网系统涉及通过中继设置中继链路的无线通信方法，并且通过识别传播延迟来设置在源设备中发送数据帧的传输时间点 当设置的继电器的操作模式对应于协作模式时，在设备之间等。
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10.发明授权公开(公告)号：US09584212B2
公开(公告)日：2017-02-28
申请号：US14550365
申请日：2014-11-21
Inventor： Hyoung Jin Kwon , Yong Sun Kim , Sung Geun Jin , Kap Seok Chang , Seung Eun Hong , Woo Yong Lee , Hyun Kyu Chung
CPC classification number: H04B7/15557 , H04B7/1555 , H04L5/14 , H04L45/22 , H04W24/00 , H04W24/08 , H04W72/02 , H04W84/047
Abstract: A communication method of a source device according to an embodiment includes detecting a status of a first link directly connected from the source device to a destination device or a status of a second link connected from the source device to the destination device via a relay device, selecting any one of the first link and the second link based on a result of the detection, and transmitting data using the selected link.
Abstract translation: 根据实施例的源设备的通信方法包括：经由中继设备检测从源设备直接连接到目的地设备的第一链路的状态或从源设备连接到目的设备的第二链路的状态， 基于检测结果选择第一链路和第二链路中的任何一个，以及使用所选择的链路发送数据。
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