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公开(公告)号：US20160353391A1
公开(公告)日：2016-12-01
申请号：US15231786
申请日：2016-08-09
Inventor： IL-GU LEE , Sok-Kyu LEE , Hyun-Kyu CHUNG , Dae-Sik KIM
CPC classification number: H04W52/262 , H04B7/0626 , H04L1/1671 , H04W52/0216 , H04W52/0219 , H04W52/0229 , Y02D70/00 , Y02D70/142 , Y02D70/26
Abstract: A method and apparatus of accessing a channel in a wireless local area network is provided. A destination station receives a request to send (RTS) frame to allocate a network allocation vector from a source station over a first bandwidth and transmits a clear to send (CTS) frame over a second bandwidth to the source station in response to the RTS frame. The second bandwidth is dynamically determined when a first parameter has a predetermined value.
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2.发明申请METHOD FOR SENDING AND RECEIVING DATA ON A COOPERATIVE COMMUNICATIONS SYSTEM AND A COOPERATIVE COMMUNICATIONS METHOD 有权在合作通信系统上发送和接收数据的方法和合作通信方法公开(公告)号：US20160329952A1
公开(公告)日：2016-11-10
申请号：US15213359
申请日：2016-07-18
Inventor： Kap-Seok CHANG , Woo-Yong LEE , Kyeongpyo KIM , Hyoung-Jin KWON , Hyun-Kyu CHUNG
CPC classification number: H04B7/15592 , H04B7/026 , H04B7/0417 , H04B7/0617 , H04B7/086 , H04B7/15521 , H04L1/0077 , H04L1/0618 , H04L2001/0097
Abstract: A data transmission method of a source node in a cooperative communication system includes: performing a beamforming to a relay node; transmitting data to the relay node; performing a beamforming to a destination node; and transmitting data to the destination node.
Abstract translation: 协作通信系统中的源节点的数据传输方法包括：对中继节点执行波束成形; 向中继节点发送数据; 对目的地节点执行波束成形; 并向目的节点发送数据。
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3.发明公开公开(公告)号：US20240333374A1
公开(公告)日：2024-10-03
申请号：US18733112
申请日：2024-06-04
Inventor： Kap-Seok CHANG , Woo-Yong LEE , Kyeongpyo KIM , Hyoung-Jin KWON , Hyun-Kyu CHUNG
CPC classification number: H04B7/15592 , H04B7/026 , H04B7/0417 , H04B7/0617 , H04B7/086 , H04B7/15521 , H04L1/0077 , H04L1/0618 , H04L2001/0097
Abstract: A data transmission method of a source node in a cooperative communication system includes: performing a beamforming to a relay node; transmitting data to the relay node; performing a beamforming to a destination node; and transmitting data to the destination node.
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公开(公告)号：US20170279518A1
公开(公告)日：2017-09-28
申请号：US15620154
申请日：2017-06-12
Inventor： Kap-Seok CHANG , Woo-Yong LEE , Kyeongpyo KIM , Hyoung-Jin KWON , Hyun-Kyu CHUNG
CPC classification number: H04B7/15592 , H04B7/026 , H04B7/0417 , H04B7/0617 , H04B7/086 , H04B7/15521 , H04L1/0077 , H04L1/0618 , H04L2001/0097
Abstract: A data transmission method of a source node in a cooperative communication system includes: performing a beamforming to a relay node; transmitting data to the relay node; performing a beamforming to a destination node; and transmitting data to the destination node.
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公开(公告)号：US20210306066A1
公开(公告)日：2021-09-30
申请号：US17345723
申请日：2021-06-11
Inventor： Kap-Seok CHANG , Woo-Yong LEE , Kyeongpyo KIM , Hyoung-Jin KWON , Hyun-Kyu CHUNG
Abstract: A data transmission method of a source node in a cooperative communication system includes: performing a beamforming to a relay node; transmitting data to the relay node; performing a beamforming to a destination node; and transmitting data to the destination node.
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Patent Agency Ranking
公开(公告)号：US20210226831A1
公开(公告)日：2021-07-22
申请号：US17221464
申请日：2021-04-02
Inventor： Kapseok CHANG , Wooyong LEE , Hyun-Kyu CHUNG
Abstract: Disclosed is a technique related to a method and apparatus for generating a preamble and a data frame for wireless communication, and to a synchronization estimation method using the preamble. According to the technique, a method for generating a frame for wireless communication is disclosed, wherein the method comprises: a step of generating a modified sequence using a first base sequence for synchronization estimation; and a step of allocating the first base sequence and the modified sequence to the frequency domain of a first timeslot to generate a preamble. The modified sequence includes a complex conjugated sequence of the first base sequence or a sequence having a code different from that of the first base sequence.
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7.发明申请公开(公告)号：US20180262263A1
公开(公告)日：2018-09-13
申请号：US15979422
申请日：2018-05-14
Inventor： Kap-Seok CHANG , Woo-Yong LEE , Kyeongpyo KIM , Hyoung-Jin KWON , Hyun-Kyu CHUNG
CPC classification number: H04B7/15592 , H04B7/026 , H04B7/0417 , H04B7/0617 , H04B7/086 , H04B7/15521 , H04L1/0077 , H04L1/0618 , H04L2001/0097
Abstract: A data transmission method of a source node in a cooperative communication system includes: performing a beamforming to a relay node; transmitting data to the relay node; performing a beamforming to a destination node; and transmitting data to the destination node.
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公开(公告)号：US20130308657A1
公开(公告)日：2013-11-21
申请号：US13951859
申请日：2013-07-26
Inventor： Hee-Soo LEE , Bang-Won SEO , Hyun-Kyu CHUNG
IPC: H04J1/02
CPC classification number: H04J1/02 , H04L1/0041 , H04L1/04 , H04L27/2602 , H04L27/2614 , H04L27/2636 , H04L27/2647 , H04W52/16 , H04W52/267 , H04W52/346
Abstract: The present invention relates a method and apparatus for transmitting/receiving data using multiple codewords in a communication system using SC-FDMA (single carrier frequency division multiple access). A transmitter generates the multiple codewords for user data and transmits the generated multiple codewords. A receiver receives the multiple codewords and sequentially performs decoding and SIC (successive interference cancellation) on the received multiple codewords. Therefore, this structure can minimize a PAPR (peak to average power ratio) and considerably reduces interference between symbols in a frequency selective fading environment.
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公开(公告)号：US20130176926A1
公开(公告)日：2013-07-11
申请号：US13779475
申请日：2013-02-27
Inventor： IL-GU LEE , Sok-Kyu LEE , Hyun-Kyu CHUNG , Dae-Sik KIM
IPC: H04W52/02
CPC classification number: H04W52/262 , H04B7/0626 , H04L1/1671 , H04W52/0216 , H04W52/0219 , H04W52/0229 , Y02D70/00 , Y02D70/142 , Y02D70/26
Abstract: A method and apparatus of accessing a channel in a wireless local area network is provided. A destination station receives a request to send (RTS) frame to allocate a network allocation vector from a source station over a first bandwidth and transmits a clear to send (CTS) frame over a second bandwidth to the source station in response to the RTS frame. The second bandwidth is dynamically determined when a first parameter has a predetermined value.
Abstract translation: 提供了一种在无线局域网中访问信道的方法和装置。 目的站接收请求发送（RTS）帧，以便通过第一带宽从源站分配网络分配向量，并响应于RTS帧向源站发送第二带宽的清除发送（CTS）帧 。 当第一参数具有预定值时动态地确定第二带宽。
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公开(公告)号：US20240080232A1
公开(公告)日：2024-03-07
申请号：US18505888
申请日：2023-11-09
Inventor： Kapseok CHANG , Wooyong LEE , Hyun-Kyu CHUNG
CPC classification number: H04L27/261 , H04L27/2613 , H04L27/2692 , H04W56/0085 , H04W72/04
Abstract: Disclosed is a technique related to a method and apparatus for generating a preamble and a data frame for wireless communication, and to a synchronization estimation method using the preamble. According to the technique, a method for generating a frame for wireless communication is disclosed, wherein the method comprises: a step of generating a modified sequence using a first base sequence for synchronization estimation; and a step of allocating the first base sequence and the modified sequence to the frequency domain of a first timeslot to generate a preamble. The modified sequence includes a complex conjugated sequence of the first base sequence or a sequence having a code different from that of the first base sequence.
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