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公开(公告)号：US10136287B2
公开(公告)日：2018-11-20
申请号：US15206420
申请日：2016-07-11
Inventor： Jae Seung Lee , Moon Sik Lee , Young Hoon Kim , Hoo Sung Lee , Jae Woo Park , Gyung Chul Shin , Ik Jae Chun , Jee Yon Choi , Dong Seung Kwon
IPC: H04W4/80 , H04W56/00 , H04B7/0413 , H04B5/00 , H04L12/40 , H04L29/06 , H04L29/08 , H04L12/70 , H04L1/00
Abstract: A method and apparatus for close-proximity communication. The close-proximity communication method performed by a transmitter includes generating a physical layer (PHY) frame including a PHY preamble, a frame header, and a payload field, and transmitting the generated PHY frame to a receiver, in which the frame header may include a media access control (MAC) header, a header check sequence (HCS), and a Reed-Solomon (RS) parity bit.
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2.发明授权公开(公告)号：US09729108B2
公开(公告)日：2017-08-08
申请号：US14996809
申请日：2016-01-15
Inventor： Seung Hyun Jang , Bong Hyuk Park , Nam Sik Ryu , Dong Seung Kwon
CPC classification number: H03F1/0222 , H03F3/19 , H03F3/245 , H03F2200/102 , H03F2200/451 , H03G3/30 , H03G3/3005
Abstract: Provided is an apparatus for adjusting an envelope signal delay in an envelope-tracking power amplifier. The apparatus includes: an envelope signal providing unit configured to provide an envelope signal; a variable negative group delay unit configured to adjust a group delay of the envelope signal received from the envelope signal providing unit and output the adjusted envelope signal; an envelope modulator configured to modulate the envelope signal outputted from the variable negative group delay unit; a group delay difference detecting unit configured to detect a group delay difference between the envelope signal which is outputted from the envelope signal providing unit and the envelope signal which is outputted from the envelope modulator; and a control signal generating unit configured to generate a control signal to control a group delay value of the variable negative group delay unit according to the group delay difference.
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3.发明授权公开(公告)号：US09332590B2
公开(公告)日：2016-05-03
申请号：US14620927
申请日：2015-02-12
Inventor： Young Jin Moon , Seung Jae Bahng , Youn Ok Park , Dong Seung Kwon
CPC classification number: H04W88/085 , H04B7/022
Abstract: Disclosed is a base station that performs coordinated communication with a plurality of remote radio heads (RRHs), including: a communication unit receiving source signals from the plurality of remote radio heads; a measurement unit measuring signal intensities and delay times of the respective source signals; a selection unit selecting remote radio heads that will perform the coordinated communication among the plurality of remote radio heads based on the signal intensities and the delay times; and a demodulation unit demodulating source signals received from the selected remote radio heads.
Abstract translation: 公开了一种与多个远程无线电头（RRH）进行协调通信的基站，包括：通信单元，从多个远程无线电头接收源信号; 测量单元，测量各个源信号的信号强度和延迟时间; 选择单元，基于所述信号强度和所述延迟时间来选择将在所述多个远程无线电头中执行协调通信的远程无线电头; 以及解调单元，解调从所选择的远程无线电头接收的源信号。
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公开(公告)号：US09955489B2
公开(公告)日：2018-04-24
申请号：US15170239
申请日：2016-06-01
Inventor： Hye Kyung Jwa , Hyung Jong Yang , Jee Hyeon Na , Mu Yong Shin , Dong Seung Kwon
CPC classification number: H04W72/085 , H04L5/0048 , H04W24/10 , H04W48/12 , H04W48/20
Abstract: Provided is a method of allocating a resource in a small cell system. The method includes: selecting a temporary base station for each user terminal; measuring a signal-to-noise ratio (SNR) through a downlink pilot in a small cell base station; transmitting the signal-to-noise ratio measured for each user terminal to the temporary base station; receiving base station selection and resource allocation information from the small cell base station; and selecting the small cell base station to which most frequency resource block are allocated as a home base station.
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公开(公告)号：US09749051B2
公开(公告)日：2017-08-29
申请号：US14863862
申请日：2015-09-24
Inventor： Seung Hyun Jang , Bong Hyuk Park , Dong Seung Kwon
IPC: H04B10/25 , H04B10/2575
CPC classification number: H04B10/25753 , H04B10/25759
Abstract: The present invention relates to a central office device, a remote site device, and a communication method thereof that can be used in a radio over fiber (RoF) technique. Provided are a central office device and a communication method thereof that convert an analog signal into a signal having a carrier with an intermediate frequency and converts the converted signal into a digital signal to transmit the converted digital signal to a remote site device. Provided are a remote site device and a communication method thereof that filter a digital signal having a carrier with an intermediate frequency to easily induce a corresponding analog signal.
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Patent Agency Ranking
公开(公告)号：US09622092B2
公开(公告)日：2017-04-11
申请号：US14242157
申请日：2014-04-01
Inventor： Chan Yong Lee , Eun Seon Cho , Hyeon Ju Oh , Byung Han Ryu , Nam Hoon Park , Dong Seung Kwon
IPC: G06F15/173 , H04W24/02 , G06F9/445 , H04L12/24 , H04W88/08
CPC classification number: H04W24/02 , G06F8/60 , H04L41/082 , H04W88/08
Abstract: Disclosed are a method and apparatus for managing a cloud virtual base station system. The present invention includes setting initial resources and driving or downloading an execution file or environment file of the cloud virtual base station system and monitoring or managing a state for a failure, radio resources, or the execution file or the environment file of the cloud virtual base station system.
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7.发明授权公开(公告)号：US09282584B2
公开(公告)日：2016-03-08
申请号：US13851541
申请日：2013-03-27
Inventor： Keun Young Kim , Seung-Hwan Lee , Dong Seung Kwon
CPC classification number: H04W76/14 , H04W16/26 , H04W72/0406 , H04W72/042
Abstract: Disclosed is a cellular communication system allowing direct communication between terminals within a cell or simultaneous transmission and reception of signals between a base station and the terminals through a repeater to be made by introducing a universal link, and a communication method thereof. The communication method of the cellular communication system includes: transmitting, by a base station, universal link setting information and a transmission control signal to a first terminal within a cell, transmitting, by the base station, the universal link setting information and a reception control signal to a second terminal within the cell, and directly transmitting/receiving, by the first and second terminals, signals through the universal link.
Abstract translation: 公开了允许在小区内的终端之间进行直接通信的蜂窝通信系统，以及通过引入通用链路来进行基站和终端之间的信号的同时发送和接收，以及通信方法。 蜂窝通信系统的通信方法包括：由基站将通用链路设定信息和发送控制信号发送到小区内的第一终端，由基站发送通用链路设定信息和接收控制 信号发送到小区内的第二终端，并且由第一和第二终端通过通用链路直接发送/接收信号。
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8.发明授权公开(公告)号：US10278054B2
公开(公告)日：2019-04-30
申请号：US15134595
申请日：2016-04-21
Inventor： Jee Yon Choi , Jae Woo Park , Moon Sik Lee , Jae Seung Lee , Young Hoon Kim , Gyung Chul Shin , Hoo Sung Lee , Ik Jae Chun , Dong Seung Kwon
IPC: H04W8/00
Abstract: A method and apparatus for wireless communication in a wireless personal area network (WPAN) communication system. A wireless communication method to be performed by a first wireless communication device includes broadcasting a beacon, receiving an association request signal from a second wireless communication device receiving the beacon, and performing association with the second wireless communication device after receiving the association request signal, in which the first wireless communication device may suspend beacon transmission after the association with the second wireless communication device is established.
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公开(公告)号：US10171201B2
公开(公告)日：2019-01-01
申请号：US15352845
申请日：2016-11-16
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , University-Industry Cooperation Group of Kyung Hee University
Inventor： Kyung Sook Kim , Een Kee Hong , Ji Hye Park , Joo Sun Bang , Dong Seung Kwon , Sung Kyung Kim , Jee Hyeon Na , Jung Mo Moon
Abstract: A data transmission method and apparatus initialize an index of a modulation and coding scheme (MCS) for transmitting data to a terminal, adjust the index of the MCS based on at least one of a hybrid automatic repeat request (HARM) feedback of the terminal and a channel quality of the terminal, and transmit the data to the terminal based on the adjusted index of the MCS.
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公开(公告)号：US10170641B2
公开(公告)日：2019-01-01
申请号：US15431926
申请日：2017-02-14
Inventor： Chulho Kim , Dong Seung Kwon , Bonghyuk Park , Young-Kyun Cho
IPC: H01L29/868 , H01L23/528 , H01L23/66 , H01L27/08 , H01L29/06
Abstract: A vertical positive-intrinsic-negative (pin) diode includes a semiconductor substrate in which a P-type region, an intrinsic region, and an N-type region are sequentially disposed in a vertical direction to be formed therein, a first electrode formed on one surface of the semiconductor substrate to be in electrical contact with the P-type region, and a second electrode formed on the other surface of the semiconductor substrate to be in electrical contact with the N-type region, wherein the P-type region and the N-type region are respectively disposed in an upper portion and a lower portion of the semiconductor substrate to be opposite to each other.
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