公开(公告)号：US20150207551A1

公开(公告)日：2015-07-23

申请号：US14327750

申请日：2014-07-10

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Soo KANG ,  Kwang Seon KIM ,  Bong Su KIM ,  Woo Jin BYUN ,  Jong Soo LIM ,  Myung Sun SONG ,  Jae Ick CHOI

IPC: H04B7/04 ,  H04B7/08 ,  H04L25/02 ,  H04B7/06

CPC classification number: H04L25/0204 ,  H04B7/0413 ,  H04B7/0608 ,  H04B7/10

Abstract: A spatial modulation method using a polarization and an apparatus using the same are provided. A spatial modulation method by a transmitting apparatus in a wireless communication system may comprise selecting an antenna to send data among transmit antennas arranged to have different polarization angles using a predetermined bit of input data based on indexes of the transmit antenna and mapping remaining bits of the input data to a preset constellation and transmitting the remaining bits of the mapped input data through the selected antenna.

Abstract translation: 提供使用偏振的空间调制方法和使用其的装置。 通过无线通信系统中的发送装置的空间调制方法可以包括：基于发射天线的索引，使用预定位的输入数据选择天线以发送天线之间的数据，以发送具有不同偏振角的数据， 将数据输入到预设星座，并通过所选择的天线发送映射的输入数据的剩余比特。

公开(公告)号：US20150195016A1

公开(公告)日：2015-07-09

申请号：US14592601

申请日：2015-01-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Bong Su KIM ,  Woo Jin BYUN ,  Min Soo KANG ,  Kwang Seon KIM ,  Jong Soo LIM

IPC: H04B7/04 ,  H04B7/06

CPC classification number: H04B7/0413 ,  H04B7/0671

Abstract: A line of sight (LOS) multiple-input and multiple-output (MIMO) system and a method of designing the system are provided, wherein a MIMO transmitter may include N transmission antennas, and an output transfer function of the MIMO transmitter may be adjusted based on phase difference between a direct path from each of the N transmission antennas to each of the M reception antennas and a delay path from each of the N transmission antennas to each of the M reception antennas.

Abstract translation: 提供了一种视线（LOS）多输入多输出（MIMO）系统和一种设计系统的方法，其中MIMO发射机可以包括N个发射天线，并且可以调整MIMO发射机的输出传递函数 基于从每个N个发送天线到每个M个接收天线的直接路径的相位差以及从N个发送天线中的每一个到每个M个接收天线的延迟路径。

公开(公告)号：US20140162652A1

公开(公告)日：2014-06-12

申请号：US13949605

申请日：2013-07-24

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Min Soo KANG ,  Kwang Seon KIM ,  Bong-Su KIM ,  Woo Jin BYUN

IPC: H04W36/32 ,  H04W52/28

CPC classification number: H04W36/32 ,  H04W52/283 ,  H04W52/285

Abstract: Provided is a method for handover for wireless communication of a high-speed mobile. The method may include receiving, from a candidate communication base station able to communicate with the high-speed mobile, location information of the candidate communication base station and location information of a neighboring communication base station near the candidate communication base station, obtaining current location information and speed information of the high-speed mobile based on global positioning system (GPS) satellite information of the high-speed mobile and topographic information around the high-speed mobile, determining an optimal communication base station among the candidate communication base station and the neighboring communication base station, based on the location information of the candidate communication base station, the location information of the neighboring communication base station, the current location information of the high-speed mobile, and the speed information of the high-speed mobile, and executing handover to the optimal communication base station.

Abstract translation: 提供了一种用于高速移动的无线通信的切换方法。 该方法可以包括从能够与高速移动通信的候选通信基站接收候选通信基站的位置信息和候选通信基站附近的相邻通信基站的位置信息，获得当前位置信息 并基于全球定位系统（GPS）对高速移动的高速移动卫星信息和地形信息进行高速移动的速度信息，确定候选通信基站和邻近基站之间的最佳通信基站 通信基站，基于候选通信基站的位置信息，相邻通信基站的位置信息，高速移动站的当前位置信息以及高速移动站的速度信息，并执行 切换到最佳通信ba se站。

公开(公告)号：US20140153502A1

公开(公告)日：2014-06-05

申请号：US13953312

申请日：2013-07-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Bong Su KIM ,  Min Soo KANG ,  Kwang Seon KIM ,  Woo Jin BYUN

IPC: H04L5/06

CPC classification number: H04L1/0001 ,  H04B1/0064

Abstract: Provided is a wireless link system using a multiband, the system including: a common baseband module to operate in a first frequency band and a second frequency band higher than the first frequency band; at least one low radio frequency (RF) module to process a signal output from the common baseband module in the first frequency band; at least one high RF module to process a signal output from the common baseband module in the second frequency band; a plurality of antennas electrically connected to the at least one low RF module and the at least one high RF module; and a control unit to adaptively allocate a control signal and data to the at least one low RF module and the at least one high RF module based on state information of a wireless channel.

Abstract translation: 提供一种使用多频带的无线链路系统，该系统包括：在比第一频带高的第一频带和第二频带中操作的公共基带模块; 至少一个低射频（RF）模块，用于处理在第一频带中从公共基带模块输出的信号; 至少一个高RF模块，用于处理在所述第二频带中从所述公共基带模块输出的信号; 电连接到所述至少一个低RF模块和所述至少一个高RF模块的多个天线; 以及控制单元，用于基于无线信道的状态信息自适应地将控制信号和数据分配给所述至少一个低RF模块和所述至少一个高RF模块。

公开(公告)号：US20250096482A1

公开(公告)日：2025-03-20

申请号：US18888999

申请日：2024-09-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Nam LEE ,  Kwang Seon KIM

IPC: H01Q21/06 ,  H01Q3/34 ,  H01Q13/18

Abstract: Exemplary embodiments provide an array antenna which may be used for the middle-range and long-range communications with the high output power and high sensitivity in a high frequency range such as a terahertz frequency band and which allows to effectively implement the beamforming. An array antenna device includes: a plurality of antenna elements periodically arranged to form a two-dimensional planar array; and a plurality of feeding waveguides each provided to supply a transmit signal to a corresponding one of the plurality of antenna elements. Each antenna element may include a resonance cavity and may be coupled to one of the plurality of feeding waveguides at a rear wall. In each antenna element, a plurality of radio wave radiation holes may be formed on a face of the resonance cavity opposite to a position where the feeding waveguide is coupled to the resonance cavity.

公开(公告)号：US20210242948A1

公开(公告)日：2021-08-05

申请号：US17160631

申请日：2021-01-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sunwoo KONG ,  Kwang Seon KIM ,  Jeehoon PARK ,  HUI DONG LEE ,  Seunghyun JANG ,  SEOK BONG HYUN

IPC: H04B17/12 ,  H04B17/21 ,  H04B17/14 ,  H01Q3/26

Abstract: An array antenna system, and a calibration method and apparatus thereof are provided. The calibration method includes measuring a signal loop including mutual coupling between antennas included in an array antenna, calculating a ratio of a reception (RX) signal received by each antenna to an RX signal received by a reference antenna of the array antenna based on a result of the measuring, and performing calibration of the array antenna based on the ratio.

公开(公告)号：US20190327070A1

公开(公告)日：2019-10-24

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

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.

公开(公告)号：US20190207790A1

公开(公告)日：2019-07-04

申请号：US16226812

申请日：2018-12-20

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Hyun JANG ,  Sun Woo KONG ,  Kwang Seon KIM ,  Myung Don KIM ,  Hui Dong LEE

IPC: H04L25/49 ,  H04B10/508 ,  H03M3/00

Abstract: Disclosed are a method for signal modulation based on pulse density modulation and an apparatus therefore. The method for signal modulation is performed in an apparatus for modulating a signal based on pulse density modulation and includes performing pulse density modulation on an analog signal input to the apparatus through a pulse density modulator of the apparatus, converting a bandwidth of the pulse density modulated signal into a bandwidth required for the apparatus through a correlative encoder of the apparatus, transmitting the bandwidth converted signal to a radio frequency (RF) unit of the apparatus based on an electrical-to-optical (E/O) converter and an optical-to-electrical (O/E) converter of the apparatus, filtering a frequency band of the bandwidth converted signal and outputting the frequency band filtered signal via the RF unit.

公开(公告)号：US20170155467A1

公开(公告)日：2017-06-01

申请号：US15251198

申请日：2016-08-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Min Soo KANG ,  Kwang Seon KIM ,  Myung Sun SONG ,  Woo Jin BYUN ,  Bong Su KIM

IPC: H04J14/06 ,  H01Q5/55 ,  H01Q9/04

CPC classification number: H04J14/06 ,  H01Q5/55 ,  H01Q9/0407 ,  H01Q21/00 ,  H04B10/112 ,  H04B10/116

Abstract: An apparatus for orbital angular momentum (OAM) mode combination and an antenna apparatus for multi-mode generation are provided. The apparatus for OAM mode combination includes three input ports configured to receive independent OAM mode signals, four output ports configured to output OAM mode signals with the same or different phase delays; and a circuit element configured to simultaneously combine or distribute the OAM mode signals by controlling phases of output signals output through the four output ports to be different depending on the OAM mode signals received through the input ports.

公开(公告)号：US20140333503A1

公开(公告)日：2014-11-13

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: H01Q3/34

CPC classification number: H01Q21/065 ,  H01Q3/46

Abstract: A reflectarray antenna for wireless telecommunication 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 to adjust a phase of a scattered field of the antenna by the appliance of a DC voltage.

Abstract translation: 用于无线电信的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板; 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; 以及相位调整部件，其设置在所述分离区域中，以通过直流电压的器具来调整所述天线的散射场的相位。