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公开(公告)号：KR1020140049949A
公开(公告)日：2014-04-28
申请号：KR1020130124414
申请日：2013-10-18
Applicant: 한국전자통신연구원
Abstract: Disclosed are a spatial filtering apparatus and method using a transmission delay time difference of a signal. An apparatus for receiving a response from a receiver through spatial filtering includes: a first signal generator for generating a first signal; a second signal generator for generating a second signal, which is spaced apart from the first signal generator at a predetermined distance; and a response receiving unit for receiving a response based on the difference in receiving time between the first and second signals from the receiving apparatus. The first and second signals are transmitted at a predetermined interval by taking into consideration of the direction of the receiver to be detected so that the apparatus can perform the spatial filtering for the receiver located in a required direction. [Reference numerals] (110) 1st device; (120) 2nd device; (130) 3rd device
Abstract translation: 公开了使用信号的传输延迟时间差的空间滤波装置和方法。 一种用于通过空间滤波从接收机接收响应的装置包括：用于产生第一信号的第一信号发生器; 第二信号发生器，用于产生与所述第一信号发生器以预定距离间隔开的第二信号; 以及响应接收单元，用于基于来自接收设备的第一和第二信号之间的接收时间差来接收响应。 通过考虑待检测的接收机的方向，以预定的间隔来发送第一和第二信号，使得设备可以对位于所需方向的接收机进行空间滤波。 （附图标记）（110）第一装置; （120）第二装置; （130）第三装置
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公开(公告)号：KR101382614B1
公开(公告)日：2014-04-10
申请号：KR1020070117200
申请日：2007-11-16
Applicant: 한국전자통신연구원
CPC classification number: H04L5/0053 , H04L5/0007 , H04L25/0202
Abstract: 하향링크 프레임 생성 장치는 복수의 동기 채널 심볼과 복수의 방송 채널 심볼을 시간축에서 인접하도록 시스템의 공통 대역폭에 배치한다. 하향링크 프레임 생성 장치는 복수의 동기 채널 심볼과 복수의 방송 채널 심볼에 프리코딩 벡터를 적용하여 복수의 안테나에 각각 대응하는 복수의 하향링크 프레임을 생성한다. 프리코딩 벡터는 복수의 하향링크 프레임이 전송되는 섹터와 복수의 동기 채널 심볼이 위치하는 부프레임에 따라 변한다. 프리코딩 벡터는 부반송파의 인덱스에는 독립적이다.
SCH, BCH, 프리코딩 벡터, FSTD-
公开(公告)号：KR1020130117267A
公开(公告)日：2013-10-25
申请号：KR1020120040293
申请日：2012-04-18
Applicant: 한국전자통신연구원
CPC classification number: H04B7/0408
Abstract: PURPOSE: A device recognition apparatus and a method thereof are provided to reduce time to spend on selecting a device to set up a communication link. CONSTITUTION: A wireless unit (110) produces a main beam and side beams. A transmitting signal processing unit (120) directs the wireless unit to control the direction of the main beam which is to be toward a peripheral in order to set up a communication link. A receiving signal processing unit (130) receives an intensity of each signal corresponding to the main beam and each side beam from each peripheral. A control unit (140) calculates signal differences among the main beam and each side beam based on the intensities of the receiving signals. The control unit selects a peripheral among a plurality of the peripherals in order to set up a communication link based on the calculation. [Reference numerals] (110) Wireless unit; (120) Transmitting signal processing unit; (130) Receiving signal processing unit; (140) Control unit; (141) Signal intensity calculating unit; (142) Device recognizing unit; (143) Link setting unit; (150) Memory
Abstract translation: 目的：提供一种设备识别装置及其方法，以减少在选择设备以建立通信链路时花费的时间。 构成：无线单元（110）产生主梁和侧梁。 发送信号处理单元（120）指示无线单元控制要向外围设备的主波束的方向以建立通信链路。 接收信号处理单元（130）从每个外围接收与主波束和每个侧波束相对应的每个信号的强度。 控制单元（140）基于接收信号的强度来计算主波束和每个侧波束之间的信号差。 控制单元在多个外围设备中选择一个外围设备，以便根据该计算建立通信链路。 （附图标记）（110）无线单元; （120）发送信号处理单元; （130）接收信号处理单元; （140）控制单元; （141）信号强度计算单元; （142）设备识别单元; （143）链接设置单元; （150）内存
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公开(公告)号：KR1020130090800A
公开(公告)日：2013-08-14
申请号：KR1020130000746
申请日：2013-01-03
Abstract: PURPOSE: A terminal for recognizing a communication target in a visible range and a method thereof are provided to select the communication target through intuitive procedures and form a communication link with the selected communication target. CONSTITUTION: A terminal (1) includes a sensor (11), a communication unit (12), a control unit, and an output unit (14). The sensor obtains the direction information including a direction and an azimuth of the terminal. The communication unit receives the position information by requesting the position information from a communication target which does not know about the identifier information in a visible range of a terminal user. The control unit grasps a relative position of the communication target by using the position information of the communication target and the direction information of a terminal and maps the grasped relative position of the communication target on a screen of the terminal. The output unit displays the relative position of the communication target mapped through the control unit on the screen. [Reference numerals] (10) Image acquisition unit; (11) Sensor; (12) Communications unit; (13) Control unit; (14) Output unit; (15) Input unit
Abstract translation: 目的：提供用于识别可见范围内的通信目标的终端及其方法，以通过直观程序选择通信目标，并与所选择的通信目标形成通信链路。 构成：终端（1）包括传感器（11），通信单元（12），控制单元和输出单元（14）。 该传感器获得包括终端的方向和方位的方向信息。 通信单元通过从不知道终端用户的可见范围内的标识符信息的通信对象请求位置信息来接收位置信息。 控制单元通过使用通信对象的位置信息和终端的方向信息来掌握通信对象的相对位置，并将通信对象的所掌握的相对位置映射到终端的屏幕上。 输出单元在屏幕上显示通过控制单元映射的通信对象的相对位置。 （附图标记）（10）图像采集单元; （11）传感器; （12）通讯单位; （13）控制单元; （14）输出单元; （15）输入单元
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公开(公告)号：KR1020130061959A
公开(公告)日：2013-06-12
申请号：KR1020110128295
申请日：2011-12-02
Applicant: 한국전자통신연구원
CPC classification number: H04L25/0232 , H04B17/21 , H04L5/0048
Abstract: PURPOSE: A method for measuring EVM(Error Vector Magnitude) is provided to simply measure a performance index of a transmitter for various references or check the same through simulation, thereby saving expenses and time required for design of a transmitting system. CONSTITUTION: A transmitter generates symbols which are composed of pilots only and a symbol which is composed of data only(S210). The transmitter generates reference points corresponding to each pilot symbol(S220). The transmitter compensates a channel based on the final reference point(S230). The transmitter determines a receiving value for the data symbol based on the final reference point, and EVM is calculated based on determined data(S240). [Reference numerals] (AA) Start; (BB) End; (S210) Generate a symbol which are composed of pilots only and a symbol which is composed of data only, (Symbol P1, P2, P3) + (Symbol D1); (S220) Obtain reference points from each of the pilot symbols(Symbol P1, P2, P3) for synchronization and channel estimation; (S230) Compensate a channel by leveling the multiple reference points; (S240) Inspect EVM for the data symbol(Symbol D1) based on the compensated channel
Abstract translation: 目的：提供一种用于测量EVM（误差矢量幅度）的方法，简单地测量发射机对各种参考的性能指标或通过仿真来检查发射机的性能指标，从而节省了传输系统设计所需的费用和时间。 构成：发射机产生仅由导频组成的符号和仅由数据组成的符号（S210）。 发射机产生对应于每个导频符号的参考点（S220）。 发射机根据最终参考点补偿一个通道（S230）。 发射机基于最终参考点确定数据符号的接收值，并且基于确定的数据来计算EVM（S240）。 （附图标记）（AA）开始; （BB）结束; （S210）生成仅由导频构成的符号和仅由数据构成的符号（符号P1，P2，P3）+（符号D1）; （S220）从用于同步和信道估计的每个导频符号（符号P1，P2，P3）获取参考点; （S230）通过调平多个参考点来补偿通道; （S240）根据补偿通道检查数据符号（符号D1）的EVM
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Patent Agency Ranking
公开(公告)号：KR1020120070145A
公开(公告)日：2012-06-29
申请号：KR1020100131579
申请日：2010-12-21
Applicant: 한국전자통신연구원
CPC classification number: H03F1/32 , H04B1/62 , H04B7/0619
Abstract: PURPOSE: A digital pre-distortion(DPD) amplifying device in a multiple antenna system is provided to prevent the increase of system sizes and costs by sharing a DPD feedback path and a DPD algorithm processing part. CONSTITUTION: Correcting parts(411 to 414) pre-distort input signals to be output and output the pre-distorted signals through antennas(441 to 444). Power amplifiers(431 to 434) are in connection with the correcting parts and amplify and output the pre-distorted signals. A distorted information extractor(450) extracts distorted information from feedback signals from the power amplifiers and from the input signals and output the distorted information to the correcting parts.
Abstract translation: 目的：提供多天线系统中的数字预失真（DPD）放大装置，以通过共享DPD反馈路径和DPD算法处理部分来防止系统尺寸和成本的增加。 构成：校正部分（411至414）预失真输出信号以输出，并通过天线输出预失真信号（441至444）。 功率放大器（431至434）与校正部分相连，并放大并输出预失真信号。 失真的信息提取器（450）从功率放大器和输入信号的反馈信号中提取失真的信息，并将失真的信息输出到校正部分。
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公开(公告)号：KR101093290B1
公开(公告)日：2011-12-14
申请号：KR1020080130414
申请日：2008-12-19
Applicant: 한국전자통신연구원
CPC classification number: H04L5/0007 , H04B7/14 , H04L5/0032 , H04L5/0037 , H04L5/0048 , H04L25/03866 , H04L27/2613 , H04L27/2655
Abstract: 노드 인식용 동기 채널에 시퀀스를 할당하는 장치가 개시된다. 노드 인식용 동기 채널에 시퀀스를 할당하는 장치는 베이스 노드의 노드 ID 인식용 시퀀스인 베이스 시퀀스를 생성하는 베이스 노드용 시퀀스 생성부; 상기 베이스 시퀀스를 변형하여 릴레이 노드의 노드 ID 인식용 시퀀스인 릴레이 시퀀스를 생성하는 릴레이 노드용 시퀀스 생성부; 상기 베이스 시퀀스나 상기 릴레이 시퀀스를 주파수영역과 시간 영역에 매핑하여 기저대역 신호를 생성하는 기저대역 생성부; 및 상기 기저대역 신호를 송신하는 송신부를 포함한다.
노드 ID 인식용 동기채널, 베이스 노드, 릴레이 노드, 소형 베이스 노드-
公开(公告)号：KR101064015B1
公开(公告)日：2011-09-08
申请号：KR1020080128012
申请日：2008-12-16
Applicant: 한국전자통신연구원
IPC: H04B7/04
Abstract: 광대역 다중안테나 무선 채널 파라미터 추정 장치가 개시된다. 광대역 다중안테나 무선 채널 파라미터 추정 방법은 광대역 다중안테나 무선 채널 측정 시스템에서 측정된 데이터로부터 구하고자 하는 다중 경로의 수를 결정하는 단계; 상기 다중 경로 성분으로 구성된 복수의 클러스터 각각에 채널 탭 대표값을 결정하는 단계; 상기 클러스터 채널 탭 대표값을 기초로 상기 클러스터에 포함된 다중 경로들의 채널 탭을 계산하는 단계; 및, 상기 다중 경로들의 채널 탭을 기초로 채널 파라미터를 추정하는 단계를 포함한다.
광대역, 무선 채널, 채널 파라미터, 클러스터, 측정시스템Abstract translation: 公开了一种用于估计宽带多天线无线信道参数的设备。 宽带多天线的无线电信道参数估测方法包括：确定多径从在宽带多天线无线电信道测量系统所测量的数据来确定的数量的工序; 确定的代表值对每个信道抽头的多个由多径分量的簇; 计算被包括基于集群的代表值的信道抽头的集群中的多个路径的信道抽头; 并且基于多路径的信道抽头来估计信道参数。
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公开(公告)号：KR1020110067872A
公开(公告)日：2011-06-22
申请号：KR1020090124647
申请日：2009-12-15
Applicant: 한국전자통신연구원
CPC classification number: H04L27/2623 , H04L27/2628
Abstract: PURPOSE: A PAPR(Peak to Average Power Ratio) reduction apparatus and orthogonal frequency division multiplexing system for the same are provided to reduce the PAPR phenomenon of a signal that is modulated in two or more modulation methods. CONSTITUTION: A clipping level determining unit(620) determines a clipping level for PAPR reduction based on complex modulation method information and average voltage of a modulated signal. A clipping unit(600) clips the signal which is complexly modulated to the determined clipping level. The clipping level determining unit receives the average voltage from a modulating unit. The clipping unit performs nonlinear clipping by using a log function.
Abstract translation: 目的：提供一种PAPR（峰均功率比）降低装置及其正交频分复用系统，以减少以两种或多种调制方式调制的信号的PAPR现象。 构成：削波电平确定单元（620）基于复调制方法信息和调制信号的平均电压来确定用于PAPR降低的限幅电平。 剪切单元（600）将被复制调制的信号剪切到所确定的限幅电平。 限幅电平确定单元从调制单元接收平均电压。 剪辑单元通过使用日志功能执行非线性剪辑。
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公开(公告)号：KR1020110058641A
公开(公告)日：2011-06-01
申请号：KR1020100070966
申请日：2010-07-22
Applicant: 한국전자통신연구원
CPC classification number: H04W92/18 , H04M1/72583 , H04W76/10 , H04W88/02
Abstract: PURPOSE: An apparatus for establishing a communication link and a method thereof are provided to establish a communication link by selecting on object on a screen. CONSTITUTION: A controller(315) selects a second communication device(320) which is displayed on a screen. The controller creates a communication link request and analyzes the communication link response. The controller establishes communication link between the second communication device and the first communication device by using the link establishment information of the first communication device(310) and the second communication device.
Abstract translation: 目的：提供一种用于建立通信链路的装置及其方法，用于通过在屏幕上的对象上进行选择来建立通信链路。 构成：控制器（315）选择显示在屏幕上的第二通信设备（320）。 控制器创建通信链路请求并分析通信链路响应。 控制器通过使用第一通信设备（310）和第二通信设备的链路建立信息来建立第二通信设备和第一通信设备之间的通信链路。
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