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    Apparatus and method for calibrating transmission path
    1.
    发明授权
    Apparatus and method for calibrating transmission path 有权
    用于校准传输路径的装置和方法

    公开(公告)号：US09503204B2

    公开(公告)日：2016-11-22

    申请号：US14976496

    申请日：2015-12-21

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Kwang Seon Kim ,  Min Soo Kang ,  Bong Su Kim ,  Jung Bin Kim ,  Woo Jin Byun ,  Mi Kyung Suk

    IPC: H04B17/12 ,  H04B17/13

    CPC classification number: H04B17/12 ,  H04B17/13

    Abstract: Provided is an apparatus for calibrating a transmission path, the apparatus including one or more couplers to separate, by one or more paths, one or more input signals input from an input terminal of one or more antennas, a power detector to detect amplitude of one or more path signals separated by the one or more paths, a power distributor to distribute any one of the one or more path signals, one or more mixers to mix a distribution signal distributed by the power distributor with the one or more path signals, a low-pass filter to remove a high-frequency component of a mixed signal mixed by the one or more mixers; and a voltage detector to detect amplitude of one or more filter pass signals with the high-frequency component removed.

    Abstract translation: 提供了一种用于校准传输路径的装置，该装置包括一个或多个耦合器，以通过一个或多个路径分离从一个或多个天线的输入端子输入的一个或多个输入信号，功率检测器，用于检测一个或多个天线的幅度 或更多路径信号，一个或多个路径分离的路径信号;功率分配器，用于分配所述一个或多个路径信号中的任何一个，一个或多个混频器，以将由所述分配器分配的分配信号与所述一个或多个路径信号混合; 低通滤波器，以去除由一个或多个混频器混合的混合信号的高频分量; 以及电压检测器，用于检测去除了高频分量的一个或多个滤波器通过信号的幅度。

    Method and apparatus for canceling self interference signal in communication system
    2.
    发明授权
    Method and apparatus for canceling self interference signal in communication system 有权

    公开(公告)号：US10924257B2

    公开(公告)日：2021-02-16

    申请号：US16393616

    申请日：2019-04-24

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Jae Ho Jung ,  Kwang Seon Kim

    IPC: H04L5/14 ,  H04B1/00 ,  H04B1/7107

    Abstract: Disclosed are a method and apparatus for canceling self-interference signals in a communication system. A first communication node includes a signal transmission unit configured to generate a first RF signal, an antenna module configured to transmit the first RF signal generated by the signal transmission unit and receive a second RF signal from a second communication node, a signal reception unit configured to process the second RF signal and a self-interference signal caused by the first RF signal, and an SIC circuit configured to cancel the self-interference signal. The SIC circuit includes a DSIC circuit for canceling the self-interference signal in a digital domain and an ASIC circuit and an HSIC circuit for canceling the self-interference signal in an analog domain. Accordingly, the performance of the communication system may be enhanced.

    Apparatus and method for wirelessly transmitting and receiving energy and data
    5.
    发明授权
    Apparatus and method for wirelessly transmitting and receiving energy and data 有权
    用于无线发送和接收能量和数据的装置和方法

    公开(公告)号：US09438314B2

    公开(公告)日：2016-09-06

    申请号：US13909532

    申请日：2013-06-04

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jung Ick Moon ,  In Kui Cho ,  Seong Min Kim ,  Je Hoon Yun ,  Woo Jin Byung ,  Kwang Seon Kim ,  Bong Su Kim ,  Min Soo Kang

    IPC: H04B5/00 ,  H01Q1/24 ,  H01Q21/28

    CPC classification number: H04B5/0037 ,  H01Q1/248 ,  H01Q21/28

    Abstract: A method for wirelessly receiving energy and data, including: a resonation operation of resonating a first frequency power signal transmitted from a transmission apparatus; a reception operation of receiving a second frequency data signal transmitted from the transmission apparatus; a first matching operation of matching input/output impedance upon receiving the first frequency power signal; a rectification operation of rectifying impedance-matched power signal from the first matching operation into a DC current; a second matching operation of matching input/output impedance upon receiving the second frequency data signal; an oscillation operation of outputting a second frequency signal by using the first frequency signal output from the resonation operation, as a reference frequency; and a frequency mixing operation of mixing the impedance-matched data signal from the second matching operation with the signal output from the oscillation operation to restore a baseband data signal.

    Abstract translation: 一种用于无线接收能量和数据的方法，包括：谐振从发送装置发送的第一频率功率信号的谐振; 接收从所述发送装置发送的第二频率数据信号的接收动作; 在接收到所述第一频率功率信号时匹配输入/输出阻抗的第一匹配操作; 从第一匹配操作到直流电流的整流阻抗匹配功率信号的整流操作; 在接收到所述第二频率数据信号时匹配输入/输出阻抗的第二匹配操作; 通过使用从共振运算输出的第一频率信号输出第二频率信号作为参考频率的振荡操作; 以及将来自第二匹配操作的阻抗匹配数据信号与从振荡操作输出的信号混合以恢复基带数据信号的混频操作。

    High frequency-based array antenna and communication method therefor
    6.
    发明授权
    High frequency-based array antenna and communication method therefor 有权

    公开(公告)号：US11658413B2

    公开(公告)日：2023-05-23

    申请号：US17712767

    申请日：2022-04-04

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jung Nam Lee ,  Woo Jin Byun ,  Kwang Seon Kim

    IPC: H01Q21/20 ,  H01Q3/36 ,  H04B7/0426 ,  H01Q5/28 ,  H01Q15/00

    CPC classification number: H01Q3/36 ,  H01Q5/28 ,  H01Q15/0033 ,  H04B7/043

    Abstract: An array antenna capable of steering a beam in a first communication node of a wireless communication system may comprise: a plurality of single antennas each capable of variably adjusting a beam steering direction; a plurality of beamforming control units each of which is connected to each of the plurality of single antennas to control a beamforming operation of each of the plurality of single antennas; and an array antenna control unit connected to the plurality of beamforming control units to control a beamforming operation of the entire array antenna, wherein the plurality of single antennas are arranged in a cylindrical shape and are installed to face a direction opposite to a central direction of the cylinder shape, and the array antenna is configured to steer a beam to a predetermined area around the first communication node through at least one single antenna among the plurality of single antennas.

    Wireless communication apparatus for increasing throughput using MIMO in LOS environment and method therefor
    7.
    发明授权
    Wireless communication apparatus for increasing throughput using MIMO in LOS environment and method therefor 有权

    公开(公告)号：US10361889B2

    公开(公告)日：2019-07-23

    申请号：US15459749

    申请日：2017-03-15

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Kwang Seon Kim ,  Min Soo Kang ,  Bong Su Kim ,  Myung Sun Song ,  Woo Jin Byun

    IPC: H04W4/00 ,  H04L25/02 ,  H04B7/0413 ,  H04W24/02

    Abstract: The present disclosure relates to a wireless communication apparatus capable of increasing throughput using MIMO in an LOS environment and a method for the same. A wireless communication apparatus based on the LOS-MIMO technique may comprise a multi-link configuration unit, a frequency response correction unit, a signal compensation unit, and a feedback unit. In the apparatus, an additional LOS-MIMO equalizer is used at the front of an LOS-MIMO estimator and a coding unit in order to compensate in-band frequency characteristics of frequency response characteristics estimated by the LOS-MIMO estimator and a signal channel estimator, whereby the LOS-MIMO estimation performance can be remarkably enhanced. Also, precise separation of multiplexed signals through the above-described LOS equalizer can make it possible to increase transmission capacity by using the LOS-MIMO which can be applied to high-order mode (e.g., over 16 quadrature amplitude modulation (QAM)) digital communications.

    Method for use with a reflectarray antenna for wireless telecommunication
    8.
    发明授权
    Method for use with a reflectarray antenna for wireless telecommunication 有权
    用于无线电信的反射天线的方法

    公开(公告)号：US09537225B2

    公开(公告)日：2017-01-03

    申请号：US13949358

    申请日：2013-07-24

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Woo Jin Byun ,  Yong Heui Cho ,  Min Soo Kang ,  Kwang Seon Kim ,  Bong-Su Kim

    IPC: H01Q21/00 ,  H01Q21/06 ,  H01Q3/46

    CPC classification number: H01Q21/065 ,  H01Q3/46

    Abstract: A method for use with a reflectarray antenna for wireless telecommunication is described. The method involves providing a reflectarray antenna, and adjusting a phase of a scattered field of the reflectarray antenna for generating different radiation patterns for angular mode-based multiplexing. The reflectarray antenna includes a ground plane, a dielectric substrate attached on the ground plane; and a first antenna patch formed on one side of the dielectric substrate. Further, the reflectarray antenna includes a second antenna patch formed adjacent to the first antenna patch with a separation area therebetween; and a phase adjustment member disposed in the separation area. The phase of the scattered field of the antenna is adjusted by changing a DC voltage of the phase adjustment member.

    Abstract translation: 描述了一种用于无线电信的反射阵列天线的方法。 该方法包括提供反射阵列天线，以及调整反射阵列天线的散射场的相位，以产生用于基于角模的复用的不同辐射图。 反射阵列天线包括接地平面，附着在接地平面上的电介质基片; 以及形成在电介质基板的一侧上的第一天线贴片。 此外，反射阵列天线包括与第一天线贴片相邻形成的第二天线贴片，其间具有分隔区域; 以及设置在分离区域中的相位调整构件。 通过改变相位调整部件的直流电压来调整天线的散射场的相位。

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