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    PROPAGATION CHANNEL SIMULATION METHOD AND APPARATUS
    4.
    发明公开
    PROPAGATION CHANNEL SIMULATION METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20240214093A1

    公开(公告)日：2024-06-27

    申请号：US18514179

    申请日：2023-11-20

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Jun Seok KIM ,  Jong Soo LIM ,  Young Jun CHONG ,  Ju Yeon HONG

    IPC: H04B17/391 ,  H04B17/00

    CPC classification number: H04B17/3912 ,  H04B17/0087

    Abstract: Exemplary embodiments provide a method of correcting a result of a ray tracing-based propagation channel simulation. The method of correcting propagation channel simulation data, includes: determining an intensity error value of a propagation channel simulation model for a propagation path associated with each object in a space for which a three-dimensional (3D) environment map is given and storing the intensity error value in a storage device; performing a propagation channel simulation for an arbitrary pair of a transmitter position and a receiver position in the space to obtain multipath components; determining an object having influenced propagations of the multipath components in the space; and correcting an intensity of at least one of the multipath components by applying the intensity error value associated with a determined object stored in the storage device.

    SIGNAL RECEIVING DEVICE FOR MEASURING CHARACTERISTIC OF WIRELESS COMMUNICATION CHANNEL, AND METHOD OF MEASURING CHARACTERISTIC OF WIRELESS COMMUNICATION CHANNEL
    6.
    发明申请
    SIGNAL RECEIVING DEVICE FOR MEASURING CHARACTERISTIC OF WIRELESS COMMUNICATION CHANNEL, AND METHOD OF MEASURING CHARACTERISTIC OF WIRELESS COMMUNICATION CHANNEL 有权
    用于测量无线通信信道特性的信号接收设备及其测量无线通信信道特性的方法

    公开(公告)号：US20150288546A1

    公开(公告)日：2015-10-08

    申请号：US14636728

    申请日：2015-03-03

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Heon Kook KWON ,  Myung Don KIM ,  Kwangchun LEE ,  Young Jun CHONG

    IPC: H04L25/06 ,  H04L1/20 ,  H04L27/22

    CPC classification number: H04L25/061 ,  H04J11/004 ,  H04J11/0066 ,  H04L1/206 ,  H04L25/0212 ,  H04L27/22 ,  H04L27/3863

    Abstract: A signal receiving device for measuring a characteristic of a wireless communication channel is provided. The signal receiving device includes an analog signal processor, an analog-digital converter, and a digital signal processor. The analog signal processor generates a band-limited signal by decreasing an intensity of a signal having an image frequency in a correlation operation result signal being a result of correlation operation, and generates an intermediate frequency signal by transforming the band-limited signal. The analog-digital converter converts the intermediate frequency signal into a digital signal. The digital signal processor generates a demodulated signal by performing in-phase/quadrature-phase modulation on the digital signal, the demodulated signal including a baseband signal, which includes a direct current component, and signals repeated at constant frequency intervals with a same bandwidth as the baseband signal, and generates an impulse response signal by decreasing intensities of the repeated signals in the demodulated signal.

    Abstract translation: 提供了一种用于测量无线通信信道的特性的信号接收装置。 信号接收装置包括模拟信号处理器，模拟数字转换器和数字信号处理器。 模拟信号处理器通过减小作为相关运算结果的相关运算结果信号中具有图像频率的信号的强度来产生频带限制信号，并且通过变换频带限制信号来产生中频信号。 模数转换器将中频信号转换为数字信号。 数字信号处理器通过对数字信号执行同相/正交相位调制来产生解调信号，该解调信号包括包括直流分量的基带信号和以恒定频率间隔以与 基带信号，并且通过降低解调信号中的重复信号的强度来产生脉冲响应信号。

    METHOD OF PROVIDING MILLIMETER WAVE BAND-BASED COMMUNICATION CONNECTION SERVICE
    8.
    发明申请
    METHOD OF PROVIDING MILLIMETER WAVE BAND-BASED COMMUNICATION CONNECTION SERVICE 审中-公开
    提供基于波段的通信连接服务的方法

    公开(公告)号：US20140349693A1

    公开(公告)日：2014-11-27

    申请号：US13937831

    申请日：2013-07-09

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jong Ho KIM ,  Myoung-Won JUNG ,  Young Keun YOON ,  Joo Hwan LEE ,  Young Jun CHONG

    IPC: H04W48/20

    CPC classification number: H04W48/20 ,  H04W48/16

    Abstract: A method of providing millimeter wave band-based communication connection service, includes measuring a strength of a signal received from at least one base station that forms at least one cell; and storing signal data based on the measured strength of the signal so that the signal data is mapped to the at least one base station. Further, the method includes selecting any one base station from among the at least one base station based on the stored signal data; and connecting communication to the selected base station. Further, the method is performed on a millimeter wave band-based mobile communication terminal.

    Abstract translation: 一种提供基于毫米波段的通信连接服务的方法，包括测量从形成至少一个小区的至少一个基站接收的信号的强度; 以及基于所测量的信号强度存储信号数据，使得信号数据被映射到至少一个基站。 此外，该方法包括基于所存储的信号数据从至少一个基站中选择任何一个基站; 以及将通信连接到所选择的基站。 此外，该方法在基于毫米波段的移动通信终端上执行。

    BACKWARD-WAVE OSCILLATOR IN COMMUNICATION SYSTEM
    10.
    发明申请
    BACKWARD-WAVE OSCILLATOR IN COMMUNICATION SYSTEM 有权
    通信系统中的后向波振荡器

    公开(公告)号：US20150061784A1

    公开(公告)日：2015-03-05

    申请号：US14475802

    申请日：2014-09-03

    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Ju Yeon HONG ,  Young Jun CHONG ,  Jeong Hae LEE ,  Dong Jin KIM

    IPC: H01J25/46

    CPC classification number: H01J25/46 ,  H01J23/24 ,  H01J25/40

    Abstract: Provided is a backward-wave oscillator in a communication system, including a waveguide formed of a metamaterial. A unit structure of the waveguide may include: a top plate; a short-circuited stub; a bottom plate separated at a predetermined gap from the top plate, and having the short-circuited stub formed in the center thereof; a first metal pillar connecting the top plate at a first port positioned on one surface based on the short-circuited stub to the bottom plate at a second port positioned on the opposite surface of the first port based on the short-circuited stub; and a second metal pillar separated from the first metal pillar, and connecting the top plate at the second port to the bottom plate at the first port.

    Abstract translation: 提供了一种通信系统中的反向波振荡器，包括由超材料形成的波导。 波导的单元结构可以包括：顶板; 短路短路 与顶板隔开预定间隙的底板，其中心形成有短路短截线; 第一金属支柱，其基于所述短路短截线将位于一个表面上的第一端口连接到位于所述第一端口的相对表面上的第二端口处的所述底板，所述第二端口基于所述短路短截线; 以及与第一金属柱分离的第二金属柱，并且将第二端口处的顶板连接到第一端口处的底板。

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