公开(公告)号：KR1020110020200A

公开(公告)日：2011-03-02

申请号：KR1020100080713

申请日：2010-08-20

Applicant: 한국전자통신연구원

Inventor： 진성근 ,  장갑석 ,  권형진 ,  이우용 ,  정현규

IPC: H04B7/26

CPC classification number: H04W56/0065 ,  H04L65/4076 ,  H04W4/80 ,  H04W56/0075 ,  H04W72/0446 ,  H04W74/00 ,  H04W84/12 ,  H04W88/02 ,  H04B7/024 ,  H04W56/0015

Abstract: PURPOSE: A method and an apparatus for adjusting a signal transmission time of a terminal in a wireless network are provided to adjust a signal transmission time of plural terminals which independently operate. CONSTITUTION: A wireless communication unit(210) transmits to plural terminals a request frame including transmission time information of plural terminals. The wireless communication unit receives a response frame transferred from plural terminals from the plural terminals according to the transmission time information. A control unit(220) calculates the difference between the real arrival time and the estimated arrival time of the response frame. In addition, the control unit adjusts the transmission time information by reflecting the difference and sets up the request frame to include the adjusted transmission time information.

Abstract translation: 目的：提供一种用于调整无线网络中的终端的信号传输时间的方法和装置，以调整独立操作的多个终端的信号传输时间。 构成：无线通信部（210）向多个终端发送包含多个终端的发送时刻信息的请求帧。 无线通信单元根据传输时间信息从多个终端接收从多个终端传送的响应帧。 控制单元（220）计算实际到达时间与响应帧的估计到达时间之间的差。 此外，控制单元通过反映差异来调整发送时间信息，并设置请求帧以包括调整后的发送时间信息。

公开(公告)号：KR1020100050368A

公开(公告)日：2010-05-13

申请号：KR1020090004581

申请日：2009-01-20

Applicant: 한국전자통신연구원

Inventor： 최윤호 ,  권형진 ,  이우용

IPC: H04B7/15 ,  H04B1/59

CPC classification number: H04B7/15535 ,  H04B7/0814

Abstract: PURPOSE: A relay device with beam selection and gain control functions and a method thereof are provided to control power of an input part amplification unit connected to receiving antennas to control beam selection of an antenna and amplify a signal according to high or low of a power level of a receiving signal, thereby controlling a gain. CONSTITUTION: A relay device comprises a multiple receiving antenna unit(201), a receiving end amplifier(203), a power detecting unit(205) and a control unit(207). The multi receiving antenna unit comprises a plurality of antennas. The receiving end amplifier amplifies respective receiving signals through the antennas to generate a plurality of amplified signals. The power detecting unit detects each power of the amplified signals. The control unit controls at least one of beam selection control of a receiving antenna or gain control of the entire relay device using each power of the amplified signals.

Abstract translation: 目的：提供一种具有波束选择和增益控制功能的中继装置及其方法，用于控制连接到接收天线的输入部分放大单元的功率，以控制天线的波束选择，并根据功率的高或低放大信号 接收信号的电平，从而控制增益。 构成：中继装置包括多个接收天线单元（201），接收端放大器（203），功率检测单元（205）和控制单元（207）。 多接收天线单元包括多个天线。 接收端放大器通过天线放大相应的接收信号以产生多个放大信号。 功率检测单元检测放大信号的每个功率。 控制单元使用放大信号的每个功率来控制接收天线的波束选择控制或整个中继设备的增益控制中的至少一个。

公开(公告)号：KR1020100007689A

公开(公告)日：2010-01-22

申请号：KR1020090007949

申请日：2009-02-02

Applicant: 한국전자통신연구원

Inventor： 홍승은 ,  김경표 ,  김용선 ,  권형진 ,  이우용

IPC: H04L12/28 ,  H04B7/26

CPC classification number: H04W8/082 ,  H04W84/045

Abstract: PURPOSE: A detour route setting method and apparatus in a broadband high frequency wireless system using a centralized MAC(Media Access Control) protocol are provided to offer quickly a detour route in case the containment of a signal by an obstacle occurs, thereby preventing a communication failure. CONSTITUTION: A first device receives a beacon message from a PNC(PicoNet Coordinator) and confirms the information of the PNC. In response to the beacon message, the first device transmits the information of the first device to the PNC. The first device is registered in the PNC(S530). The first device transmits a detection request to a second device and a relay device(S540). The relay device offers a detour route about the direct communications path of the first and second devices. The first device receives a response to the detection request from the second device and the relay device, and confirms information related to the second device and the relay device(S550).

Abstract translation: 目的：提供一种使用集中式MAC（媒体访问控制）协议的宽带高频无线系统中的迂回路由设置方法和装置，用于在由障碍物发生信号的容纳的情况下快速提供绕行路由，从而防止通信 失败。 规定：第一个设备从PNC（PicoNet协调器）接收信标消息并确认PNC的信息。 响应于信标消息，第一设备将第一设备的信息发送到PNC。 第一个设备在PNC中注册（S530）。 第一设备向第二设备和中继设备发送检测请求（S540）。 中继装置提供关于第一和第二装置的直接通信路径的绕行路线。 第一设备从第二设备和中继设备接收对检测请求的响应，并确认与第二设备和中继设备相关的信息（S550）。

公开(公告)号：KR100932626B1

公开(公告)日：2009-12-17

申请号：KR1020070129754

申请日：2007-12-13

Applicant: 한국전자통신연구원

Inventor： 이우용 ,  김진경 ,  김경표 ,  이재섭 ,  김용선 ,  권형진

IPC: H04B1/7075

Abstract: 본 발명은 직접 시퀀스 확산 스펙트럼 방식을 이용하는 수신 장치에 관한 것으로, 더욱 상세하게는 혼성 역확산 장치를 이용하여 주파수 옵셋(Offset)을 추정하고, 심볼 동기화를 수행하는 수신장치에 관한 것이다.
본 발명은 제1 확산 코드를 각각의 위상 천이값에 따라서 위상 천이시켜 복수의 제2 확산 코드를 생성하는 확산 코드 생성부, 상기 복수의 제2 확산 코드에 상응하는 각각의 역확산 값을 생성하는 역확산부, 상기 각각의 역확산 값들 중에서 절대값의 크기가 가장 큰 역확산 값을 최대 역확산 값으로 선택하는 최대 역확산값 선택부, 상기 최대 역확산 값에 상응하는 제2 확산 코드의 상기 위상 천이값에 기반하여 전송 주파수와 수신 주파수간의 주파수 차를 추정하는 주파수 옵셋(frequency offset) 추정부를 포함하는 것을 특징으로 하는 혼성 역확산 장치를 제공한다.
본 발명에 따르면, 직접 시퀀스 확산 스펙트럼 방식의 수신 장치에서 혼성 역확산 방식을 이용하여 역확산, 신호감지, 동기화, 전송 주파수 오차 추정을 간편하게 수행할 수 있다.
혼성 역확산, 주파수 추정, 주파수 옵셋, 시간 동기

Abstract translation: 提供直接序列扩频方案的混合解扩装置来简单地执行解扩，信号检测，同步和发送频率误差估计。 扩频码产生单元（120）通过根据每个移相的相位值对第一扩频码进行相移来产生多个第二扩频码。 解扩单元（130）产生对应于第二扩展码的每个解扩值。 最大解扩值选择单元（140）选择解扩值中具有最大绝对值的解扩值作为最大解扩值。 频率偏移估计器（150）估计发送频率与接收频率之间的频率差。

公开(公告)号：KR100928825B1

公开(公告)日：2009-11-27

申请号：KR1020070129687

申请日：2007-12-13

Applicant: 한국전자통신연구원

Inventor： 김경표 ,  이우용 ,  김진경 ,  김용선 ,  권형진

IPC: H04J11/00 ,  H04L27/00

Abstract: 복수의 상관기들을 이용한 주파수 옵셋 추정 장치가 개시된다. 주파수 옵셋 추정 장치는 복수의 상관기들을 이용하여 훈련 신호에 대한 복수의 상관값들을 출력하는 상관값 생성부 -상기 복수의 상관기들 각각은 미리 설정된 고유의 위상 회전을 고려하여 상기 복수의 상관값들을 계산함.-, 상기 복수의 상관값들을 기초로 주파수 옵셋을 추정하는 주파수 옵셋 추정부 및 상기 추정된 주파수 옵셋에 따라 상기 데이터 신호에 포함된 심볼들을 검출하는 심볼 검출기를 포함한다.
주파수 옵셋, 상관기, 상관값, 훈련 신호, 보상, 추정

Abstract translation: 提供了一种用于估计频率偏移的设备和方法，以通过使用多个相关器以简单的硬件结构来估计频率偏移。 接收器包括模数转换器（110），低通滤波器，相关值生成器（130），频偏估计器（140）和符号检测器（150）。 模数转换器将模拟同相信号和模拟正交信号转换为数字同相信号和数字正交信号。 相关值生成器通过使用多个相关器输出用于训练信号的多个相关值。 如果存在预定相位旋转，则多个相关器输出最大相关值。 频率偏移估计器基于多个相关值来估计频率偏移。 符号检测器根据估计的频率偏移来检测包括在数据信号中的符号。

公开(公告)号：KR1020090060532A

公开(公告)日：2009-06-15

申请号：KR1020070127385

申请日：2007-12-10

Applicant: 한국전자통신연구원

Inventor： 권형진 ,  김진경 ,  이우용 ,  김경표

IPC: H04L5/00 ,  H04L29/06 ,  H04L1/06

CPC classification number: H04L65/4069 ,  H04L1/06 ,  H04L5/00 ,  H04L45/24 ,  H04L65/607 ,  H04L65/80

Abstract: An apparatus and a method for transmitting and receiving streaming data using a multiple path are provided to restore the lost streaming data and to reproduce the steaming data without an additional control signal in a wireless communication system using a directional antenna. A path list including sequencing information about a transmissible path is managed and maintained(S210). The streaming data is framed(S220). Whether a transmission method is a progressive method or interlace method is determined when the streaming data frame is transmitted according the sequencing information through the multiple path(S230). If the streaming data is the progressive mode, the streaming data is transmitted through the multiple path by corresponding to the sequencing information(S240). If the streaming data is the interlace mode, the streaming data is transmitted through one or more paths by corresponding to the sequencing information(S250).

Abstract translation: 提供了一种使用多路径发送和接收流数据的装置和方法，用于在使用定向天线的无线通信系统中恢复丢失的流数据和再现不含附加控制信号的蒸汽数据。 管理和维护包括关于可传播路径的排序信息的路径列表（S210）。 流式传输数据被帧化（S220）。 当根据通过多路径的排序信息发送流数据帧时，确定发送方法是逐行方式还是交错方式（S230）。 如果流数据是逐行模式，则通过对应于排序信息的多路径传输流数据（S240）。 如果流数据是交错模式，则流数据通过对应于排序信息的一个或多个路径传送（S250）。

公开(公告)号：KR100902248B1

公开(公告)日：2009-06-11

申请号：KR1020070129755

申请日：2007-12-13

Applicant: 한국전자통신연구원

Inventor： 이우용 ,  김진경 ,  김경표 ,  이재섭 ,  김용선 ,  권형진

IPC: H04L27/22

CPC classification number: H04L27/22 ,  H04B1/707

Abstract: An apparatus for measuring and compensating residual phase error in wireless communication system is provided to minimize the error generated between a transmission and a receiving frequency and minimize the performance degradation of the receiving device. The apparatus for measuring and compensating residual phase error comprises a receiver(110), a despreader(120), a maximum value selection part(130), a phase difference measurement part(140), a frequency offset estimator(150), a phase compensation part(160) and a detection unit(170). The receiver receives diffused transmission symbols from the transmitting device. The despreader despreads received transmission symbols. The despreader produces despreading values corresponding to each chip. The maximum value selection part selects maximum despreading values corresponding to each symbol. The phase difference measurement part measures the phase difference between selected maximum despreading values. The frequency offset estimator estimates the difference of the receiving frequency and transmission frequency. The phase compensation part compensates for the phase of the transmission symbol. The detection unit detects the transmitted symbol.

Abstract translation: 提供了一种用于测量和补偿无线通信系统中的残余相位误差的装置，用于最小化在传输和接收频率之间产生的误差，并使接收设备的性能下降最小化。 用于测量和补偿残余相位误差的装置包括接收器（110），解扩器（120），最大值选择部分（130），相位差测量部分（140），频率偏移估计器（150），相位 补偿部分（160）和检测单元（170）。 接收机从发送装置接收扩散的发送符号。 解扩器解扩收发信符号。 解扩器产生对应于每个芯片的解扩值。 最大值选择部分选择对应于每个符号的最大解扩值。 相位差测量部分测量所选择的最大解扩值之间的相位差。 频率偏移估计器估计接收频率和发射频率的差异。 相位补偿部分补偿发送符号的相位。 检测单元检测发送的符号。

公开(公告)号：KR1020090016390A

公开(公告)日：2009-02-13

申请号：KR1020080075790

申请日：2008-08-01

Applicant: 한국전자통신연구원

Inventor： 이우용 ,  김경표 ,  김진경 ,  김용선 ,  권형진

IPC: H04B7/02

CPC classification number: H04B7/061 ,  H04B7/0805 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/06 ,  H04B7/02

Abstract: An adaptive modulation apparatus and a method using a multiple antenna selective method and using a plurality of antennas are provided to minimize the frequency efficiency and the antenna selection delay by communicating data according to the channel environment of an antenna. A multiple antenna transmission apparatus(101) selects one transmission antenna among a plurality of transmission antennas(103). The purpose transmission rate of the selected transmission antenna is determined. A multiple antenna receiving device(105) selects one RX-antenna among a plurality of RX-antennas(107). By utilizing the selected RX-antenna, the purpose transmission rate is received from the multiple antenna transmission apparatus. The channel status value of RX-antenna is measured based on the received purpose transmission rate. The channel status value is the received signal power, SNR(Signal to Noise Ratio), and the value of LLR(Log Likelihood Ratio).

Abstract translation: 提供一种使用多天线选择方法并使用多个天线的自适应调制装置和方法，以通过根据天线的信道环境传送数据来最小化频率效率和天线选择延迟。 多天线发送装置（101）在多个发送天线（103）中选择一个发送天线。 确定所选发射天线的目的传输速率。 多天线接收装置（105）在多个RX天线（107）中选择一个RX天线。 通过利用选择的RX天线，从多天线发送装置接收目的传输速率。 RX天线的信道状态值根据接收到的目的传输速率进行测量。 信道状态值是接收信号功率，SNR（信噪比）和LLR（对数似然比）的值。

公开(公告)号：KR1020080050953A

公开(公告)日：2008-06-10

申请号：KR1020070061715

申请日：2007-06-22

Applicant: 한국전자통신연구원 ,  한양대학교 산학협력단

Inventor： 권형진 ,  조숙희 ,  허남호 ,  김진웅 ,  이수인 ,  정제창 ,  진순종 ,  하창우 ,  이완재

IPC: H04N13/00 ,  H04N19/146

Abstract: An apparatus and a method for adaptively controlling a bit rate and a 3D(Three-dimensional) stereo-scopic image coding system using the same are provided to code an image with a large complexity of an edge of a boundary line, thereby reducing degradation of picture quality due to the edge of the boundary line. A picture quality measurement unit(331) measures the difference of picture quality between a left image and a right image outputted from an image coding device(32). A bit rate controlling unit controls a coding bit rate of the left and right images in the image coding device such that the measured picture quality difference is maintained within a certain reference value. The bit rate controlling unit includes a bit rate generating unit(332) for generating a new coding bit rate of the left and right images by using the measured picture quality difference such that the measured picture quality difference is maintained within the certain reference value, and the first and second bit rate converting units(333,334) for converting the new coding bit rate into quantization parameter and transferring the same to the image coding device.

Abstract translation: 提供了一种用于自适应地控制比特率的装置和方法以及使用其的3D（三维）立体立体图像编码系统，以对边界线边缘的复杂度较大的图像进行编码，由此降低 画面质量由于边界的边缘线。 图像质量测量单元（331）测量从图像编码装置（32）输出的左图像和右图像之间的图像质量的差异。 比特率控制单元控制图像编码装置中的左图像和右图像的编码比特率，使得所测量的图像质量差保持在特定参考值内。 比特率控制单元包括：比特率生成单元，用于通过使用所测量的图像质量差来生成左右图像的新编码比特率，使得所测量的图像质量差保持在特定参考值内;以及 用于将新的编码比特率转换为量化参数并将其传送到图像编码装置的第一和第二比特率转换单元（333,334）。

公开(公告)号：KR100411587B1

公开(公告)日：2003-12-18

申请号：KR1020010086270

申请日：2001-12-27

Applicant: 한국전자통신연구원

Inventor： 권형진 ,  안충현 ,  안치득

IPC: G08G1/0969

Abstract: PURPOSE: A method and an apparatus for processing synchronously a motion picture and position information and a GIS(Geographical Information System) using the same are provided to identify the map information from images by synchronizing and multiplexing the motion picture and the position information. CONSTITUTION: The image information and the position information are simultaneously obtained and synchronized by applying the same synchronous signal to an image acquisition device(110) and a position acquisition device(120). A time stamp synchronized with the synchronous signal is added to the obtained image information bit stream and the obtained position information bit stream. The synchronized image information bit stream and the synchronized position bit stream are stored into a storage portion(150).

Abstract translation: 目的：提供一种用于同步处理运动图像和位置信息的方法和设备以及使用该方法和设备的GIS（地理信息系统），以通过同步和复用运动图像和位置信息来从图像中识别地图信息。 构成：通过将相同的同步信号施加到图像采集装置（110）和位置采集装置（120），图像信息和位置信息被同时获得并同步。 与同步信号同步的时间戳被添加到获得的图像信息比特流和获得的位置信息比特流。 同步图像信息比特流和同步位置比特流被存储到存储部分（150）中。