公开(公告)号：KR1020090116618A

公开(公告)日：2009-11-11

申请号：KR1020090016817

申请日：2009-02-27

Applicant: 한국전자통신연구원

Inventor： 홍승은 ,  김경표 ,  김용선 ,  이우용

IPC: H03M13/00 ,  H04N19/89

CPC classification number: H03M13/356 ,  H04N19/67

Abstract: PURPOSE: A method and apparatus for channel coding and modulation for unequal error protection in transmitting uncompressed video over a wideband high frequency wireless system are provided to improve transmission speed by controlling an error of important signal factor in concentration. CONSTITUTION: In a method and apparatus for channel coding and modulation for unequal error protection in transmitting uncompressed video over a wideband high frequency wireless system, a bit segmentation unit classifies a pixel of moving-picture data into an MSB bit and an LSB bit. The MSB bit has high level of Importance while the LSB has low level of Importance. An MSB subframe and an LSB subframe are generated by using MSB bits and LSB bits. A header generation unit(190) produces an MSB MAC subframe and an LSB MAC subframe. The header having padding bit information is attached to the MSB MAC subframe and the LSB MAC subframe. A channel coding unit(200) generates MSB data channel-encoded through error correcting coding and channel-encoded LSB data.

Abstract translation: 目的：提供一种通过宽带高频无线系统传输未压缩视频的不平等误差保护的信道编码和调制方法和装置，通过控制浓度中重要信号因子的误差来提高传输速度。 构成：在用于通过宽带高频无线系统发送未压缩视频的不平等错误保护的信道编码和调制的方法和装置中，比特分段单元将运动图像数据的像素分类为MSB比特和LSB比特。 MSB位具有高级别的重要性，而LSB具有较低的重要性。 通过使用MSB位和LSB位来生成MSB子帧和LSB子帧。 标题生成单元（190）产生MSB MAC子帧和LSB MAC子帧。 具有填充位信息的报头附加到MSB MAC子帧和LSB MAC子帧。 信道编码单元（200）通过纠错编码和通道编码的LSB数据产生通道编码的MSB数据。

公开(公告)号：KR1020090100309A

公开(公告)日：2009-09-23

申请号：KR1020090023222

申请日：2009-03-18

Applicant: 한국전자통신연구원

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

IPC: H04B7/26 ,  H04N19/89 ,  H04B15/00

CPC classification number: H04L1/0078 ,  H04L1/0009 ,  H04L1/001 ,  H04L1/0011 ,  H04L1/004 ,  H04W4/06

Abstract: PURPOSE: A dynamic link adaptive method for the UEP of a video signal in a broadband high frequency wireless system and an apparatus thereof are provided to improve the transmission speed by concentrating the error control on more important signal components. CONSTITUTION: A UEP(Unequal Error Protection) transmission device(100) considering a dynamic link comprises a UEP transmission controller(110), a bit segmentation unit(160) and a channel coding unit(183). The UEP transmission controller confirms a bit segmentation position which distinguishes the bit space size and importance of each pixel component, in consideration of a channel condition when video data is inputted, and then controls so that the error correction coding can be used for correcting relatively more errors in a pixel component having high importance.

Abstract translation: 目的：提供一种用于宽带高频无线系统中的视频信号的UEP的动态链路自适应方法及其装置，通过将误差控制集中在更重要的信号分量上来提高传输速度。 构成：考虑动态链路的UEP（不等错误保护）传输设备（100）包括UEP传输控制器（110），比特分段单元（160）和信道编码单元（183）。 考虑到输入视频数据时的信道条件，UEP传输控制器确认区分每个像素分量的比特空间大小和重要性的比特分段位置，然后进行控制，使得纠错编码可以用于相对更多的校正 具有高重要性的像素分量中的错误。

公开(公告)号：KR1020090064707A

公开(公告)日：2009-06-22

申请号：KR1020070132004

申请日：2007-12-17

Applicant: 한국전자통신연구원

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

IPC: H04B7/26 ,  H04B5/02

CPC classification number: H04W16/28 ,  H04W52/0212 ,  H04W52/283

Abstract: A distance base controlled beam apparatus and a method thereof at the same time for suing a same channel are provided to reduce the interference with the other user terminal when performing communication between a user terminal and a service providing device. A user terminal is connected to a service providing device(S210). The distance between the service providing device and the user terminal is measured(S220). The user terminal controls the beam width and transmission power with reference to the measured distance information(S230). The user terminal transmits data request message to the service providing device. The data response message is received from the service providing device(S240). The user terminal transmits and receives the service providing device and data(S250).

Abstract translation: 提供了一种距离基站控制的波束装置及其同时用于起诉相同信道的方法，用于当在用户终端和服务提供装置之间进行通信时减少与其他用户终端的干扰。 用户终端连接到服务提供装置（S210）。 测量服务提供装置与用户终端之间的距离（S220）。 参照所测量的距离信息，用户终端控制波束宽度和发射功率（S230）。 用户终端向服务提供设备发送数据请求消息。 从服务提供装置接收数据应答消息（S240）。 用户终端发送和接收服务提供装置和数据（S250）。

公开(公告)号：KR1020090062442A

公开(公告)日：2009-06-17

申请号：KR1020070129687

申请日：2007-12-13

Applicant: 한국전자통신연구원

Inventor： 김경표 ,  이우용 ,  김진경 ,  김용선 ,  권형진

IPC: H04J11/00 ,  H04L27/00

CPC classification number: H04L25/0202 ,  H04L27/0014 ,  H04L2027/0026

Abstract: A device and a method for estimating a frequency offset are provided to estimate the frequency offset with a simple hardware structure by using a plurality of correlators. A receiver includes an analog to digital converter(110), a low pass filter, a correlation value generator(130), a frequency offset estimator(140) and a symbol detector(150). The analog to digital converter converts an analog in-phase signal and an analog quadrature signal into a digital in-phase signal and a digital quadrature signal. The correlation value generator outputs the plurality of correlation values for a training signal by using the plurality of correlators. The plurality of correlators output the maximum correlation value if the predetermined phase rotation exists. The frequency offset estimator estimates the frequency offset based on the plurality of correlation values. A symbol detector detects the symbol included in a data signal according to the estimated frequency offset.

Abstract translation: 提供一种用于估计频率偏移的装置和方法，以通过使用多个相关器以简单的硬件结构估计频率偏移。 接收机包括模数转换器（110），低通滤波器，相关值发生器（130），频率偏移估计器（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。 相关值发生器通过使用多个相关器输出用于训练信号的多个相关值。 如果存在预定的相位旋转，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含在数据信号中的符号。

公开(公告)号：KR1020090059023A

公开(公告)日：2009-06-10

申请号：KR1020080041976

申请日：2008-05-06

Applicant: 한국전자통신연구원

Inventor： 권형진 ,  김진경 ,  김용선 ,  김경표 ,  이우용

IPC: H04B7/04

CPC classification number: H04W40/22 ,  H04B7/2606 ,  H04L45/00 ,  H04L45/22 ,  H04W40/02

Abstract: An apparatus and a method for transmitting and receiving data in a wireless communication system are provided to perform smooth communication even when a direct path is blocked by using a bypass path with a relay except a direct path. A station sets up a bypass path by suing a relay device(S100), and performs antenna trading with the relay device(S110). The station confirms a communication path mode(S120). When the communication path mode is a single mode, the station transceives data by suing one path among multiple paths(S130). When the mode is a sequential multiple mode, the station transceives data by using the all multiple paths(S140).

Abstract translation: 提供了一种用于在无线通信系统中发送和接收数据的装置和方法，以便即使当通过使用具有除了直接路径之外的继电器的旁路路径来阻止直接路径时也执行平滑通信。 一个站通过中继设备（S100）设置旁路路径，并与中继设备进行天线交易（S110）。 站确认通信路径模式（S120）。 当通信路径模式为单一模式时，站通过在多个路径之间起诉一条路径收发数据（S130）。 当模式是顺序多模式时，站通过使用所有多个路径收发数据（S140）。

公开(公告)号：KR1020090042140A

公开(公告)日：2009-04-29

申请号：KR1020080075687

申请日：2008-08-01

Applicant: 한국전자통신연구원

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

IPC: H04B7/04 ,  H04B7/02

CPC classification number: H04B7/0617 ,  H04B7/0434 ,  H04B7/0619 ,  H04B7/063 ,  H04B7/0639

Abstract: A multi antenna communication method and a system thereof are provided to perform adaptive modulation according to channel environment, thereby increasing frequency efficiency. A spread spectrum code is used about a plurality of transmission antennas so that a weighting vector is determined(S410). The determined weighting vector is used so that a target transmission rate of each transmission antenna is determined(S420). Information about the determined target transmission rate is transmitted to a multiple antenna receiving device(S430). Channel information is received from the multiple antenna receiving device(S440). The received channel information is used so that data is transmitted to the multiple antenna receiving device(S450). The channel information comprises whether to include the information about the transmitted target transmission rate.

Abstract translation: 提供多天线通信方法及其系统，以根据信道环境进行自适应调制，从而提高频率效率。 关于多个发送天线使用扩频码，从而确定加权矢量（S410）。 使用确定的加权矢量，使得确定每个发送天线的目标传输速率（S420）。 关于确定的目标传输速率的信息被发送到多天线接收设备（S430）。 从多天线接收装置接收信道信息（S440）。 使用所接收的信道信息，使得数据被发送到多天线接收装置（S450）。 信道信息包括是否包括关于发送的目标传输速率的信息。

公开(公告)号：KR1020090024611A

公开(公告)日：2009-03-09

申请号：KR1020080052545

申请日：2008-06-04

Applicant: 한국전자통신연구원

Inventor： 김진경 ,  이우용 ,  권형진 ,  김경표 ,  김용선

IPC: H04N7/084 ,  H04B7/24

CPC classification number: H04N7/084 ,  H04N7/083 ,  H04N7/085 ,  H04N21/235 ,  H04N21/435

Abstract: An apparatus for transceiving a point to point moving signal reception high channel using horizontal blanking interval and a method for executing the apparatus are provided to enable an image signal display device to transmit user data to an image signal transmission device through an HBI(Horizontal Blanking Interval). A video signal transmission apparatus includes an application data receiver(101), a MAC(Media Access Control) controller(102), a map generator(103), a transmitter(104), a switching decision unit(105), and a MAC frame receiver(106). The application data receiver continuously receives application data from an application layer corresponding to an upper layer of MAC. The application data receiver stores the received application data in a memory and informs the MAC controller of the reception event. Here, the application data may be non- video information that is transferred in the HBI and video information that is transferred in an active line(AL). The non- video information is auxiliary data containing audio information or subtitle information. According to a request of the MAC controller, the map generator analyzes attribute information of each HBI to generate FUCA(Fast Uplink Channel Allocation) map information. Also, according to the request of the MAC controller, the transmitter transmits the generated FUCA map information, or a MAC control or data frame via a downlink channel. According to the request of the MAC controller, the switching decision unit determines when to change a mode of a radio frequency switch based on the FUCA map information and may also inform the MAC controller of the decision.

Abstract translation: 提供一种用于使用水平消隐间隔收发点对点移动信号接收高信道的装置和用于执行该装置的方法，以使得图像信号显示装置能够通过HBI（水平消隐间隔）向用户数据发送用户数据到图像信号传输装置 ）。 视频信号发送装置包括应用数据接收器（101），MAC（媒体接入控制）控制器（102），地图生成器（103），发送器（104），切换判定单元（105） 帧接收器（106）。 应用数据接收器从与MAC的上层相对应的应用层连续接收应用数据。 应用数据接收器将接收到的应用数据存储在存储器中，并向MAC控制器通知接收事件。 这里，应用数据可以是在HBI中传送的非视频信息和在有效行（AL）中传送的视频信息。 非视频信息是包含音频信息或字幕信息的辅助数据。 根据MAC控制器的要求，地图生成器分析每个HBI的属性信息，生成FUCA（快速上行链路分配）映射信息。 此外，根据MAC控制器的要求，发射机经由下行链路信道发送生成的FUCA映射信息或MAC控制或数据帧。 根据MAC控制器的要求，切换决定单元基于FUCA映射信息确定何时改变射频切换模式，并且还可以通知MAC控制器该决定。

公开(公告)号：KR1020090009118A

公开(公告)日：2009-01-22

申请号：KR1020080068587

申请日：2008-07-15

Applicant: 한국전자통신연구원

Inventor： 이우용 ,  김진경 ,  김경표 ,  권형진 ,  김용선 ,  이재섭 ,  이동용 ,  김민택 ,  황승구

IPC: H04L1/00 ,  H04L1/24 ,  H04N19/89

CPC classification number: H04L1/0041 ,  H04L1/007 ,  H04L1/0089 ,  H04N21/631

Abstract: An apparatus and a method for transmitting and receiving image data are provided to perform error correction by extracting the important bits of each pixel comprising the image signal and inserting an error correction code into an important bit. An image signal transmitter receives an image signal to be transmitted from an upper layer(602). Respective pixels of the image signals are divided into the upper bit and the lower bit(604). The image signal transmitter confirms the setting state of the insertion of an error correction code(606). If the insertion of the error-correction code is set according to the confirmation result, the image signal transmitter applies the error correction code according to the classified upper bit(608). The image signal transmitter forms a payload of an MSB packet by collecting the upper bits applying the error correction code and forms the payload of the LSB packet by collecting the lower bits(610). If the error correction code is not applied according to the confirmation result, the image signal transmitter forms the payload of the header of the MSB packet by collecting the upper bits and forms the payload of the LSB packet by collecting the lower bits(612). The image signal transmitter generates the headers of the MSB packet and the LSB packet and generates the MSB packet and the LSB packet by coupling with the respective payloads(614). The generated MSB packet and the LSB packet are transmitted to an image signal receiver(616).

Abstract translation: 提供了一种用于发送和接收图像数据的装置和方法，以通过提取包括图像信号的每个像素的重要位并将纠错码插入重要位来进行纠错。 图像信号发送器接收要从上层发送的图像信号（602）。 图像信号的各个像素被分成高位和低位（604）。 图像信号发送器确认插入纠错码的设置状态（606）。 如果根据确认结果设置纠错码的插入，则图像信号发送器根据分类的高位（608）应用纠错码。 图像信号发射器通过收集应用纠错码的高位形成MSB分组的有效载荷，并通过收集低位（610）形成LSB分组的有效载荷。 如果根据确认结果未应用错误校正码，则图像信号发射器通过收集较高比特来形成MSB分组报头的有效载荷，并通过收集低位来形成LSB分组的有效载荷（612）。 图像信号发送器生成MSB分组的报头和LSB分组，并通过与各自的有效载荷耦合来生成MSB分组和LSB分组（614）。 生成的MSB分组和LSB分组被发送到图像信号接收器（616）。

公开(公告)号：KR1020080109617A

公开(公告)日：2008-12-17

申请号：KR1020080050464

申请日：2008-05-29

Applicant: 한국전자통신연구원

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

IPC: H04B7/04 ,  H04L1/12

CPC classification number: H04B7/026 ,  H04B7/2606 ,  H04L1/06 ,  H04L1/1671 ,  H04L1/1825 ,  H04L1/1867 ,  H04L45/22 ,  H04L2001/0092 ,  H04W40/12 ,  H04W40/205 ,  H04W40/02 ,  H04W40/246 ,  H04W40/248

Abstract: A multipath management method for performing smooth communication, a data transmitting/receiving method using a multipath and an apparatus thereof are provided to perform smooth data exchange in a wireless telecommunications system of 60 GHz band which transmits data by using a directional antenna. A data transmitting part(630) selects one or more usable path according to predetermined regulation and transmits the data. A path management part(620) manages usable path according to whether to receive the confirmation control signal of the transmitted data. One or more path is searched according to the data and is registered in a path list. The registered path is selected and transmits the data.

Abstract translation: 提供一种用于执行平滑通信的多路径管理方法，使用多路径的数据发送/接收方法及其装置，以在通过使用定向天线发送数据的60GHz频带的无线电信系统中执行平滑的数据交换。 数据发送部（630）根据规定的规定选择一个以上的可用路径，并发送数据。 路径管理部（620）根据是否接收发送数据的确认控制信号来管理可用路径。 根据数据搜索一个或多个路径，并将其登记在路径列表中。 选择注册的路径并发送数据。

公开(公告)号：KR1020070061217A

公开(公告)日：2007-06-13

申请号：KR1020060067057

申请日：2006-07-18

Applicant: 한국전자통신연구원

Inventor： 이우용 ,  김경표 ,  이현

IPC: H04B1/7077

CPC classification number: H04B1/7077 ,  H04B1/7115 ,  H04L7/007

Abstract: An apparatus and a method for tracking sample timing in a wireless pico cell communication system of direct sequence band diffusion method are provided to improve performance of the wireless pico cell system by adjusting a timing point every N accumulated number of times. An apparatus for tracking sample timing in a wireless pico cell communication system includes a timing error detecting device(21), a filtering device(22), a normalizing device(23), a sample timing adjustment controlling device(24), and an interpolating device(25). The timing error detecting device(21) extracts a correlation function value by using an early signal having -1/Ns(Ns is a random natural number) chip offsets and a late signal having +1/Ns chip offsets based on a signal sampled at an on-time gate, and detects a difference between a square of the correlation function value detected through an early gate and a square of the correlation function value detected through a late gate. The filtering device(22) stabilizes the timing error detected at the timing error detecting device(21). The normalizing device(23) normalizes the timing error stabilized at the filtering device(22). The sample timing adjustment controlling device(24) controls a sample timing point every N(natural number) accumulated number of times by using the mean timing error normalized at the normalizing device(23). The interpolating device(25) adjusts the sample timing point according to control of the sampling timing adjustment controlling device(24).

Abstract translation: 提供了一种用于跟踪直接序列带扩散方法的无线微微蜂窝通信系统中的采样定时的装置和方法，以通过每N个累加次数调整定时点来提高无线微微蜂窝小区系统的性能。 一种用于在无线微微蜂窝通信系统中跟踪采样定时的装置，包括定时误差检测装置（21），滤波装置（22），归一化装置（23），采样定时调整控制装置（24） 装置（25）。 定时误差检测装置（21）通过使用具有-1 / Ns（Ns是随机自然数）码片偏移的早期信号和具有+ 1 / Ns码片偏移的延迟信号，基于在 并且检测通过早期门检测的相关函数值的平方和通过后门检测的相关函数值的平方之间的差。 过滤装置（22）稳定在定时错误检测装置（21）处检测到的定时错误。 标准化装置（23）使在过滤装置（22）处稳定的定时误差归一化。 采样定时调整控制装置（24）通过使用在标准化装置（23）处归一化的平均定时误差来控制每N（自然数）累积次数的采样定时点。 内插装置（25）根据采样定时调整控制装置（24）的控制来调整采样定时点。