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    디지털 복조 방법 및 그 시스템
    111.
    发明公开
    디지털 복조 방법 및 그 시스템 审中-实审
    数字解调方法及其系统

    公开(公告)号：KR1020150100373A

    公开(公告)日：2015-09-02

    申请号：KR1020140022106

    申请日：2014-02-25

    Applicant: 한국전자통신연구원

    Inventor： 김영민 ,  서재현 ,  김흥묵

    IPC: H04L27/38

    CPC classification number: H04L25/067 ,  H04L27/2032 ,  H04L27/38

    Abstract: 디지털 복조 시스템이 수신 신호의 I 채널 값 및 Q 채널 값을 계산한다. 그리고 비균등 검출 레벨을 가지도록 검출 레벨을 변경한다. 그리고 변경된 검출 레벨, I 채널 값 및 Q 채널 값을 이용하여 비트 단위로 수신 신호를 복조한다.

    Abstract translation: 数字解调系统计算接收信号的Q信道值和I信道值，并将检测电平改变为具有不均匀的检测电平。 通过使用改变的检测电平，I通道值和Q通道值，以位为单位对接收到的信号进行解调。

    부호화된 MIMO 시스템에서 MMSE 선형 검출을 이용한 연판정 획득방법
    112.
    发明公开
    부호화된 MIMO 시스템에서 MMSE 선형 검출을 이용한 연판정 획득방법 审中-实审
    使用用于编码MIMO系统的线性MMSE检测的软决策方法

    公开(公告)号：KR1020140067255A

    公开(公告)日：2014-06-05

    申请号：KR1020120134276

    申请日：2012-11-26

    Applicant: 한국전자통신연구원

    Inventor： 김영민 ,  김수영 ,  서재현 ,  김흥묵

    IPC: H04L27/26 ,  H04L1/06

    CPC classification number: H04B7/0854 ,  H04B7/0413

    Abstract: The present invention provides a method for obtaining a soft decision value by a receiving end of a multi-input multi-output (MIMO) communications system comprising steps of detecting signals transmitted by transmission antennas from MIMO reception signals received by multiple antennas by using a minimum mean square error (MMSE) detection matrix; calculating symbols by distributing a channel gain to the detected signals; demapping soft decision bits by a soft decision demapper by using the calculated symbols; and generating final soft decision bits by applying a correction value generated by using a value of a real part of the channel gain to the demapped soft decision bits. By simply calculating the correction value applied to the soft decision bits, complexity of the receiving end can be reduced to simplify formation of a receiving unit, perform MIMO detection, and obtain performance similar to that of maximum likelihood detection (MLD).

    Abstract translation: 本发明提供一种用于通过多输入多输出（MIMO）通信系统的接收端获得软判决值的方法，包括以下步骤：通过使用最小值从多个天线接收的MIMO接收信号中检测由发送天线发送的信号 均方误差（MMSE）检测矩阵; 通过向检测到的信号分配信道增益来计算符号; 通过使用计算的符号，通过软判决解映射器对软判决比特进行解映射; 以及通过将通过使用所述信道增益的实部的值生成的校正值应用于所述解映射的软判决比特来生成最终的软判决比特。 通过简单地计算应用于软判决比特的校正值，可以减少接收端的复杂度，以简化接收单元的形成，执行MIMO检测，并获得与最大似然检测（MLD）类似的性能。

    디지털 방송 신호의 전송 방법, 전송 장치, 수신 방법 및 수신 장치
    115.
    发明公开
    디지털 방송 신호의 전송 방법, 전송 장치, 수신 방법 및 수신 장치 无效
    传输方法，传输装置，接收方法，数字广播信号接收装置

    公开(公告)号：KR1020130096688A

    公开(公告)日：2013-08-30

    申请号：KR1020130093840

    申请日：2013-08-07

    Applicant: 한국전자통신연구원

    Inventor： 임형수 ,  신현출 ,  서재현 ,  김흥묵 ,  이용태 ,  박성익 ,  임종수 ,  이수인

    IPC: H04N19/00 ,  H04N21/234 ,  H04N7/015

    CPC classification number: H04H20/42 ,  H04H20/72 ,  H04H40/18 ,  H04H60/07 ,  H04L1/0003 ,  H04L1/0017 ,  H04L1/0041 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/04 ,  H04L2001/0093 ,  H04L2001/0098 ,  H04N21/2343 ,  H04N21/234327

    Abstract: PURPOSE: A transmission method, transmission apparatus, reception method, and reception apparatus for a digital broadcasting signal are provided to divide a stream into multiple layers according to the properties of the stream and independently process the layers. CONSTITUTION: A transmission method for a digital broadcasting signal comprises steps of: dividing a unit stream into multiple layers according to the properties of the stream (S104); encoding and mapping the divided layers (S105, S106); and dynamically assigning the resources of the layers based on the number of symbols of the layers (S107, S108). [Reference numerals] (AA) Start; (BB) End; (S101) Input multiple transmission streams; (S102) Multiplex in the type of a unit stream; (S103) Encode for error correction; (S104) Divide the unit stream into multiple layers; (S105) Encode the divided layers; (S106) Map the divided layers using a predetermined method; (S107) Determine the bandwidth of each layer based on the number of symbol of each layer; (S108) Assign frequency domain; (S109) Perform frequency interleaving to each layer; (S110) Perform inverse fast Fourier transform

    Abstract translation: 目的：提供一种用于数字广播信号的传输方法，传输装置，接收方法和接收装置，以根据流的属性将流划分成多个层，并独立地处理这些层。 构成：数字广播信号的传输方法包括以下步骤：根据流的属性将单元流划分成多个层（S104）; 编码和映射划分的层（S105，S106）; 并且基于层的符号的数量动态分配层的资源（S107，S108）。 （附图标记）（AA）开始; （BB）结束; （S101）输入多个传输流; （S102）单位流类型中的多路复用; （S103）编码纠错; （S104）将单位流划分为多层; （S105）对划分的层编码; （S106）使用预定方法映射分割图层; （S107）根据每一层的符号数确定每层的带宽; （S108）分配频域; （S109）对各层进行频率交织; （S110）进行快速傅立叶逆变换

    훈련 신호를 이용한 추가 데이터 송수신 장치 및 방법
    116.
    发明公开
    훈련 신호를 이용한 추가 데이터 송수신 장치 및 방법 无效
    使用训练序列发送和接收附加数据的装置和方法

    公开(公告)号：KR1020130055264A

    公开(公告)日：2013-05-28

    申请号：KR1020110120921

    申请日：2011-11-18

    Applicant: 한국전자통신연구원

    Inventor： 서재현 ,  임형수 ,  박성익 ,  김흥묵 ,  허남호

    IPC: H04N7/015

    CPC classification number: H04H20/65 ,  H04B10/556 ,  H04H40/27 ,  H04L27/04 ,  H04N21/4348 ,  H04N21/4355 ,  H04N21/4382

    Abstract: PURPOSE: A device for transmitting and receiving additional data by using training signals and a method thereof are provided to transmit the additional data by using the training signals while maintaining inverse compatibility with ATSC(Advanced Television System Committee). CONSTITUTION: An additional data transmitting/receiving device includes a training signal assignment unit(310), an additional data insertion unit(320), and a signal transmission unit(330). The training signal assignment unit assigns training signals to broadcast signals. The additional data insertion unit inserts additional data into the training signals. The signal transmission unit transmits the training signals which the additional data is inserted. [Reference numerals] (310) Signal assignment unit; (320) Additional data insertion unit; (330) Signal transmission unit

    Abstract translation: 目的：提供一种通过使用训练信号发送和接收附加数据的装置及其方法，用于通过使用训练信号来发送附加数据，同时维持与ATSC（高级电视系统委员会）的反相容性。 构成：附加数据发送/接收装置包括训练信号分配单元（310），附加数据插入单元（320）和信号发送单元（330）。 训练信号分配单元将训练信号分配给广播信号。 附加数据插入单元将附加数据插入到训练信号中。 信号发送单元发送附加数据插入的训练信号。 （附图标记）（310）信号分配单元; （320）附加数据插入单元; （330）信号传输单元

    방송 신호의 수신 방법 및 수신 장치
    118.
    发明公开
    방송 신호의 수신 방법 및 수신 장치 有权
    用于接收广播信号的装置和方法

    公开(公告)号：KR1020120132454A

    公开(公告)日：2012-12-05

    申请号：KR1020120119271

    申请日：2012-10-25

    Applicant: 한국전자통신연구원

    Inventor： 서재현 ,  임형수 ,  김흥묵 ,  이용태 ,  박성익 ,  임종수 ,  이수인

    IPC: H04N21/43 ,  H04N7/015

    CPC classification number: H04N5/4401 ,  H04N7/122 ,  H04N7/52

    Abstract: PURPOSE: A broadcast signal receiving method and a device thereof are provided to supply separate transmission types according to a frequency domain and a time domain. CONSTITUTION: An A/D converting unit(510) receives a transmission frame. The A/D converting unit converts the received transmission frame into a distal signal. The transmission frame includes a plurality of transmission data. The transmission frame includes a frame header including information about the transmission data. A frame header determining unit(520) decodes frame header information from the transmission frame. A transmission data selecting unit outputs one of the transmission data based on the frame header information. [Reference numerals] (510) A/D converting unit; (520) Frame header determining unit; (530) Fourier converting unit; (540) Service selecting unit; (AA) Transmitting signal; (BB) Digital demodulation unit 1; (CC) Digital demodulation unit 2; (DD) Digital demodulation unit 3; (EE) Channel decoding unit 1; (FF) Channel decoding unit 2; (GG) Channel decoding unit 3; (HH) Service 1; (II) Service 2; (JJ) Service 3

    Abstract translation: 目的：提供广播信号接收方法及其装置，以根据频域和时域提供单独的传输类型。 构成：A / D转换单元（510）接收传输帧。 A / D转换单元将接收到的传输帧转换为远端信号。 发送帧包括多个发送数据。 传输帧包括包括关于传输数据的信息的帧报头。 帧头确定单元（520）从传输帧解码帧头信息。 发送数据选择单元基于帧头信息输出发送数据之一。 （附图标记）（510）A / D转换单元; （520）帧头确定单元; （530）傅里叶变换单元; （540）服务选择单元; （AA）发射信号; （BB）数字解调单元1; （CC）数字解调单元2; （DD）数字解调单元3; （EE）信道解码单元1; （FF）信道解码单元2; （GG）信道解码单元3; （HH）服务1; （二）服务2; （JJ）服务3

    통신 시스템에서 데이터 송수신 장치 및 방법
    119.
    发明公开
    통신 시스템에서 데이터 송수신 장치 및 방법 无效
    用于在通信系统中发送/接收数据的装置和方法

    公开(公告)号：KR1020110129823A

    公开(公告)日：2011-12-02

    申请号：KR1020110048908

    申请日：2011-05-24

    Applicant: 한국전자통신연구원

    Inventor： 이유석 ,  박성익 ,  서재현 ,  김흥묵

    IPC: H04N7/08 ,  H04N7/015 ,  H04W4/06 ,  H04W52/22

    CPC classification number: H04W52/225 ,  H04W4/06 ,  H04N7/08 ,  H04H60/78 ,  H04N7/015 ,  H04W4/00 ,  H04W24/00 ,  H04W52/20 ,  H04W52/54

    Abstract: PURPOSE: A data transceiving apparatus of a communication system is provided to transceiver broadcasting data corresponding to the broadcast service by combining additional data with main data. CONSTITUTION: A main data generator(102) creates main data corresponding to a main broadcasting service. A main signal generator(104) creates the main signal of the main data. An additional data generator(110) creates a plurality of additional data corresponding to additional services. An additional signal generator(112) generates a plurality of additional signals of the additional data. A combination unit(106) unites the main signal and the additional signals. A transmitting unit(108) transmits broadcast signal.

    Abstract translation: 目的：通过将附加数据与主数据组合，提供通信系统的数据收发装置，用于收发与广播业务相对应的广播数据。 构成：主数据发生器（102）创建对应于主广播服务的主数据。 主信号发生器（104）产生主数据的主信号。 附加数据生成器（110）创建对应于附加服务的多个附加数据。 附加信号发生器（112）产生附加数据的多个附加信号。 组合单元（106）将主信号和附加信号相结合。 发送单元（108）发送广播信号。

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