公开(公告)号：US20130267266A1

公开(公告)日：2013-10-10

申请号：US13845760

申请日：2013-03-18

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jae Hyun PARK ,  Sung Jin YOO ,  Myung Sun SONG ,  Byung Jang JEONG ,  Jae Ick CHOI

IPC: H04B7/04

CPC classification number: H04B7/0456

Abstract: A communication method of a base station and a terminal based on interference alignment in a multi-cell multi-user multiple-input multiple-output (MIMO) interference channel and a method and apparatus of communication using interference alignment and block successive interference pre-cancellation in a multi-user MIMO interference channel. The base station may determine a precoding matrix to maximize a signal to interference and noise ratio (SINR) and a signal to leakage and noise ratio (SLNR) in the interference channel, and a terminal communicating with the base station may determine a decoding matrix to align interference. The transmitter including a multicell interference channel may calculate a rotation matrix for interference alignment, identify effective symbol vectors using the rotation matrix, and generate a transmit signal of a target transmitter to pre-cancel interference corresponding to a transmit signal of a neighboring transmitter.

Abstract translation: 基于多小区多用户多输入多输出（MIMO）干扰信道中的干扰对准的基站和终端的通信方法以及使用干扰对准和块连续干扰预取消的通信的方法和装置 在多用户MIMO干扰信道中。 基站可以确定预编码矩阵以使干扰信道中的信号与干扰和噪声比（SINR）以及信号与泄漏和噪声比（SLNR）最大化，并且与基站通信的终端可以确定解码矩阵 对准干扰。 包括多小区干扰信道的发射机可以计算用于干扰对准的旋转矩阵，使用旋转矩阵识别有效符号向量，并且生成目标发射机的发射信号以预先抵消与相邻发射机的发射信号相对应的干扰。

公开(公告)号：US20200064461A1

公开(公告)日：2020-02-27

申请号：US16550086

申请日：2019-08-23

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  PUKYONG NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION

Inventor： Sung Hyun HWANG ,  Woo Jin BYUN ,  Sung Jin YOO ,  Jae Hyun PARK

IPC: G01S13/58 ,  G01S7/02 ,  G01S13/93

Abstract: An operation method performed by an apparatus for detecting multiple targets may comprise transmitting first signals using Mt transmit antennas included in the apparatus; receiving the first signals reflected by the multiple targets through Mr receive antennas included in the apparatus; generating a first function for estimating a velocity and an azimuth of each of the multiple targets using the first signals and the reflected first signals; estimating a velocity and an azimuth that maximize a result of the first function as a velocity and an azimuth of a first target closest to the apparatus among the multiple targets; generating a second function by cancelling interference caused by the first target from the first function; and estimating a velocity and an azimuth that maximize a result of the second function as a velocity and an azimuth of a second target among the multiple targets.

公开(公告)号：US20140126617A1

公开(公告)日：2014-05-08

申请号：US13777121

申请日：2013-02-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hoi Yoon JUNG ,  Sun Min LIM ,  Jae Hyun PARK ,  Byung Jang JEONG

IPC: H03M7/46

CPC classification number: H03M7/46 ,  H03M7/3062

Abstract: Disclosed are a signal compression apparatus and method for dynamic compressive sensing, including: a signal input unit configured to simultaneously output an input signal, and generate and output a linear measurement reference signal based on the input signal; a linear transform unit configured to receive the linear measurement reference signal and variably generate a linear measurement matrix value according to the linear measurement reference signal; a signal compressor configured to output a compressed signal for the input signal based on the generated linear measurement matrix value; and a signal processor configured to reconstruct the compressed signal and perform spectrum sensing of the input signal. Accordingly, it is possible to increase signal compression efficiency of compressive sensing and improve signal reconstruction performance by using sparsity information of the input signal, and also by performing signal compression by using a compression matrix suitable for the sparsity information of the input signal.

Abstract translation: 公开了一种用于动态压缩感测的信号压缩装置和方法，包括：信号输入单元，被配置为同时输出输入信号，并且基于输入信号生成并输出线性测量参考信号; 线性变换单元，被配置为接收线性测量参考信号，并根据线性测量参考信号可变地生成线性测量矩阵值; 信号压缩器，被配置为基于所生成的线性测量矩阵值输出用于输入信号的压缩信号; 以及信号处理器，被配置为重构所述压缩信号并执行所述输入信号的频谱感测。 因此，可以通过使用输入信号的稀疏信息来提高压缩感测的信号压缩效率并且通过使用适合于输入信号的稀疏信息的压缩矩阵来执行信号压缩来提高压缩感测的信号压缩效率。

公开(公告)号：US20130336180A1

公开(公告)日：2013-12-19

申请号：US13898556

申请日：2013-05-21

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae Cheol PARK ,  Sung Hyun HWANG ,  Byung Jang JEONG ,  Jae Hyun PARK ,  Jae Ick CHOI

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04L5/001 ,  H04L5/006 ,  H04L27/0006 ,  H04W72/0453 ,  H04W72/087

Abstract: An exemplary embodiment provides a carrier aggregation apparatus including: a level assignment manager configured to perform management by classifying a license band allocated to a cognitive radio cell into a primary radio resource (PRR) level, and by classifying a shareable band obtained through a cognitive radio database or spectrum sensing into an auxiliary radio resource (ARR) level; a determiner configured to determine a quality of service (QoS) level of a communication service provided to the cognitive radio cell; and a service provider configured to allocate a frequency resource of the PRR level when the QoS level requires a first communication service, and to allocate a frequency resource of the ARR level when the QoS level requires a second communication service lower than the first communication service.

Abstract translation: 一种示例性实施例提供了一种载波聚合装置，包括：级别分配管理器，被配置为通过将分配给认知无线电小区的许可证频带分类为主无线电资源（PRR）级别并通过将通过认知无线电获得的可共享频带进行分类来执行管理 数据库或频谱感测成辅助无线电资源（ARR）级别; 被配置为确定提供给所述认知无线电小区的通信服务的服务质量（QoS）级别的确定器; 以及服务提供器，被配置为当QoS级别需要第一通信服务时分配PRR级别的频率资源，并且当QoS级别要求低于第一通信服务的第二通信服务时，分配ARR级别的频率资源。

公开(公告)号：US20140200017A1

公开(公告)日：2014-07-17

申请号：US13920504

申请日：2013-06-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jung Sun UM ,  Jae Hyun PARK ,  Byung Jang JEONG ,  Sang Won KIM ,  Jin Suk PAK

IPC: H04L5/06

CPC classification number: H04L5/006 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0085 ,  H04L27/0006

Abstract: To perform communication in a cognitive radio network, a cognitive radio apparatus according to an exemplary embodiment includes: an estimation module configured to generate a channel estimation signal to be transmitted to a predetermined reception apparatus positioned in a predetermined channel in the case of selecting the predetermined channel from among multiple channels; a communication module configured to transmit the channel estimation signal to the predetermined reception apparatus, and to receive a channel response signal from the predetermined reception apparatus; and a control module configured to control the communication module so that at least one of a communication signal set with respect to the predetermined channel and a variable communication signal obtained by varying the communication signal is transmitted to the predetermined reception apparatus, when it is determined that the predetermined channel is positioned in a deep fading section based on the channel response signal.

Abstract translation: 为了在认知无线电网络中执行通信，根据示例性实施例的认知无线电设备包括：估计模块，被配置为在选择预定的情况下，生成要发送到定位在预定信道中的预定接收设备的信道估计信号 频道来自多个频道; 通信模块，被配置为将所述信道估计信号发送到所述预定接收装置，并从所述预定接收装置接收信道响应信号; 以及控制模块，其被配置为控制所述通信模块，使得相对于所述预定信道设置的通信信号和通过改变所述通信信号获得的可变通信信号中的至少一个被发送到所述预定接收装置，当确定 基于信道响应信号将预定信道定位在深衰落部分中。

公开(公告)号：US20150096276A1

公开(公告)日：2015-04-09

申请号：US14220579

申请日：2014-03-20

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae Hyun PARK ,  Sung Lok CHOI ,  Won Pil YU

IPC: A01D34/00

CPC classification number: A01D34/008 ,  G05D2201/0208

Abstract: Provided is a mowing boundary area recognizing apparatus of a mowing robot. The mowing boundary area recognizing apparatus includes a ground state measurer configured to acquire environment data of a ground based on a grass length on the ground, a determiner configured to determine the grass length on the ground on a basis of the ground environment data to recognize a mowing boundary area, and a controller configured to adjust running of the mowing robot to a mowing area for which mowing is needed.

Abstract translation: 提供了一种割草机器人的割草边界区识别装置。 割草边界区域识别装置包括基本状态测量器，被配置为基于地面上的草地长度获取地面的环境数据;确定器，被配置为基于地面环境数据确定地面上的草地长度，以识别 割草边界区域和被配置为将割草机器人的行进调整到需要割草的割草区域的控制器。