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121.发明公开
公开(公告)号：KR1020150031177A
公开(公告)日：2015-03-23
申请号：KR1020140116988
申请日：2014-09-03
Applicant: 한국전자통신연구원
IPC: H04B1/66
CPC classification number: H04L25/03834 , H04L25/0328 , H04L25/03343
Abstract: 본 명세서는 무선 통신 시스템에서 FTN(Faster Than Nyquist) 펄스(pulse) 성형을 이용한 신호 전송 장치의 신호 송신 방법 및 장치에 관한 것이다. 이러한 본 명세서는 전송하고자 하는 비트 스트림(bit stream)을 변조하는 단계, 상기 FTN 펄스 성형을 위한 파라미터를 결정하는 단계, 상기 파라미터를 기반으로 상기 FTN 펄스를 생성하는 단계 및 상기 생성된 FTN 펄스를 신호 수신 장치로 전송하는 단계를 포함하되, 상기 파라미터는 상기 신호 수신 장치의 채널 수신 상태를 기반으로 결정되는 것을 특징으로 하는 신호 송신 방법을 제공한다.
Abstract translation: 本发明涉及一种用于在无线通信系统中使用比奈奎斯特（FTN）脉冲整形更快地在信号传输设备中发送和接收信号的方法和装置。 该方法包括以下步骤：调制要发送的比特流; 确定FTN脉冲整形的参数; 基于该参数产生FTN脉冲; 以及将所生成的FTN脉冲发送到信号接收装置，其中，根据信号接收装置的信道接收状态来确定参数。
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公开(公告)号：KR1020140079579A
公开(公告)日：2014-06-27
申请号：KR1020120147315
申请日：2012-12-17
Applicant: 한국전자통신연구원
CPC classification number: H04H20/59 , H04H20/71 , H04H60/50 , H04H60/76 , H04H2201/11
Abstract: The present invention relates to an apparatus and a method for providing emergency information and supplementary information. A terminal for providing emergency information and supplementary information includes an EWAS processor to receive an EWAS signal, to determine whether an EWC is included in the EWAS signal, and to decode the EWC for acquiring the emergency information and the supplementary information; a region based service unit to decode the emergency information and the supplementary information to acquire service information including at least one service item, and to express an item label, an item description, broadcasting link information, and communications link information on the service item; and a terminal base function unit accessing a Wi-Fi network or a mobile communications network to perform communications or accessing a T-DMB network to receive broadcasting according to selection of a user, and to control web browsing environment for acquiring additional information through Internet access provided from the mobile communications network or Wi-Fi network. An automatic recognition service and a region based service are used to the highest degree as an advantage of an automatic recognition emergency broadcasting service and a low data transmission rate may be compensated.
Abstract translation: 本发明涉及一种用于提供紧急信息和补充信息的装置和方法。 用于提供紧急信息和补充信息的终端包括用于接收EWAS信号的EWAS处理器，以确定EWC是否包括在EWAS信号中，并解码用于获取紧急信息和补充信息的EWC; 基于区域的服务单元来解码紧急信息和补充信息以获取包括至少一个服务项目的服务信息，并且在服务项上表示项目标签，项目描述，广播链接信息和通信链接信息; 以及终端基站功能单元，其接入Wi-Fi网络或移动通信网络以执行通信或访问T-DMB网络以根据用户的选择来接收广播，并且控制网络浏览环境以通过因特网接入获取附加信息 由移动通信网络或Wi-Fi网络提供。 自动识别服务和基于区域的服务被最大程度地用作自动识别紧急广播服务的优点，并且可以补偿低数据传输速率。
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公开(公告)号：KR101407007B1
公开(公告)日：2014-06-13
申请号：KR1020110027606
申请日：2011-03-28
Applicant: 한국전자통신연구원
IPC: H04N7/015
Abstract: 본 발명은 시간에 따라 채널 환경이 변화되는 디지털 방송 시스템에서 데이터를 블록 단위로 반복 전송하고 수신단에서 수신 품질 측정을 통해 우수한 수신 블록을 선택 결합하여 수신 품질을 향상시키기 위한 반복 송신 장치 및 수신 장치에 관한 것으로,
본 발명에 따른 송신 장치는, 압축된 데이터 스트림을 채널 부호화하는 채널 코딩수단; 상기 채널 코딩수단에 의해 채널 부호화된 데이터 스트림을 복수의 블록 단위로 구분하여 복수의 데이터 블록을 생성하고, 상기 복수의 데이터 블록을 다중화하여 제1 반복 전송 구간에 출력하고, 상기 복수의 데이터 블록과 동일한 복사된 데이터 블록을 제2 반복 전송 구간에 출력하여 동일 데이터 블록에 대해 임의의 자연수 N회만큼 반복 출력하는 반복 및 다중화수단; 및 상기 반복 및 다중화수단으로부터 출력된 다중화된 데이터 블록들을 무선 주파수 신호로 변조하여 송출하는 변조수단을 포함하되, 상기 반복 및 다중화수단은, 상기 동일 데이터 블록들에 대해 코히어런스 시간과 동일하거나 긴 시간 간격을 가지고 반복 전송한다.-
公开(公告)号：KR1020140057154A
公开(公告)日：2014-05-12
申请号：KR1020130124461
申请日：2013-10-18
Applicant: 한국전자통신연구원
IPC: H04H20/59
CPC classification number: H04H20/59 , H04H60/50 , H04H2201/11 , H04H2201/20
Abstract: An apparatus and a method for providing a digital broadcast signal are provided. The apparatus for providing a digital broadcast signal comprises a disaster broadcast unit which detects a first disaster message signal from a terrestrial DMB signal, and generates a second disaster message signal including a disaster broadcast activation data for emergency alert service for a radio shadow area based on a first field value of the first disaster message signal; and a broadcast signal relay unit which controls transmission of the second disaster massage signal transmitted from the disaster broadcast unit.
Abstract translation: 提供了一种用于提供数字广播信号的装置和方法。 用于提供数字广播信号的装置包括灾难广播单元，其从地面DMB信号检测第一灾难信号信号，并且生成第二灾害信号信号，其包括基于无线电阴影区域的紧急警报服务的灾难广播激活数据 第一灾害信号信号的第一场值; 以及广播信号中继单元，其控制从灾害广播单元发送的第二灾害按摩信号的发送。
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公开(公告)号：KR1020140052852A
公开(公告)日：2014-05-07
申请号：KR1020130125233
申请日：2013-10-21
Applicant: 한국전자통신연구원
Abstract: The present invention relates to a broadcasting transmission apparatus. Disclosed in the present specification is the broadcasting transmission apparatus which comprises an ATSC signal generation unit to transmit an ATSC signal in accordance with ATSC transmission standards; a low-speed data signal generation unit which has the same frequency range as that of the ATSC signal, and transmits at least one narrow-band signal located in a null frequency domain of an NTSC removal filter; a coupling unit to couple the ATSC signal to the at least one narrow-band signal; and an RF transmission unit to transmit the signal, coupled by the coupling unit, as an RF signal.
Abstract translation: 广播发送装置技术领域本发明涉及广播发送装置。 在本说明书中公开的广播发送装置包括：ATSC信号生成单元，按照ATSC传输标准发送ATSC信号; 低速数据信号生成单元，其具有与ATSC信号相同的频率范围，并且发送位于NTSC去除滤波器的零频域中的至少一个窄带信号; 耦合单元，用于将所述ATSC信号耦合到所述至少一个窄带信号; 以及RF发送单元，用于将由耦合单元耦合的信号作为RF信号发送。
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Patent Agency Ranking
公开(公告)号：KR1020130106496A
公开(公告)日：2013-09-30
申请号：KR1020120028072
申请日：2012-03-20
Applicant: 한국전자통신연구원
IPC: H04L27/38
CPC classification number: H04L1/0045 , H04L25/067 , H04L27/3818
Abstract: PURPOSE: A soft-decision bit detection and demodulation method is provided to secure performance by using a simple method while maintaining a conventional modulation/demodulation system. CONSTITUTION: A soft-decision bit detection and demodulation method includes the following steps: a step of securing the I-channel value and Q-channel value of a received transmission signal; a step of securing initial soft-decision bit values for a first bit and a second bit by using the secured I-channel value and Q-channel value; a step of cyclically securing initial soft-decision bit values for a third bit through an Mth bit by using the initial soft-decision bit values for the first and second bits; and a step of securing final soft-decision bit values by multiplying the secured initial soft-decision bit values by a gain which is calculated based on a reliability adjustment value for the initial soft-decision bit values. [Reference numerals] (101) Error correction encoder; (102) M-ary modulator (symbol phase); (103) M-ary demodulator (bit-specific soft-decision detection); (104) Iterative decoder; (AA) Transmission system; (BB,FF) Binary signal; (CC) Log_2M bit; (DD) Channel fading; (EE) Reception system; (GG) Log_2M soft-decision value; (HH) Channel noise
Abstract translation: 目的：提供一种软判决比特检测和解调方法，通过简单的方法保护传统的调制/解调系统来保证性能。 构成：软判决位检测和解调方法包括以下步骤：确保接收到的发送信号的I信道值和Q信道值的步骤; 通过使用安全的I信道值和Q信道值来确保第一比特和第二比特的初始软判决比特值的步骤; 通过使用第一和第二比特的初始软判决比特值，循环地确保第三比特的第M比特的初始软判定比特值的步骤; 以及通过将安全的初始软判决比特值乘以基于用于初始软判决比特值的可靠性调整值计算的增益来确保最终软判决比特值的步骤。 （附图标记）（101）纠错编码器; （102）M元调制器（符号相位）; （103）M元解调器（比特特定软判决检测）; （104）迭代解码器; （AA）传动系统; （BB，FF）二进制信号; （CC）Log_2M位; （DD）频道衰落; （EE）接待系统; （GG）Log_2M软判决值; （HH）通道噪声
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公开(公告)号：KR1020130061257A
公开(公告)日：2013-06-11
申请号：KR1020110127471
申请日：2011-12-01
CPC classification number: H04B1/707 , H04H20/30 , H04H60/07 , H04N21/2383 , H04N21/4382 , H04N21/8126
Abstract: PURPOSE: A device for transmitting and receiving additional data in a digital broadcast system and a method thereof are provided to transmit and receive the additional data which guarantees excellent receiving performance in a low SNR(Signal-to-Noise Ratio) and multi-path environment. CONSTITUTION: An IF(Intermediate Frequency) broadcast signal generation unit(110) generates a broadcast signal of an IF band through FEC(Forward Error Correction) and modulation of input broadcast data. An IF additional signal generation unit(120) generates additional input data as an additional signal of the IF band by using DSSS(Direct Sequence Spread Spectrum). An RF(Radio Frequency) upward conversion unit(150) converts a combination signal of the additional signal and the broadcast signal, which is generated in a signal combination unit(140), into an RF band. A transmission unit(160) transmits the combination signal of the generated RF band. [Reference numerals] (110) IF broadcast signal generation unit; (120) IF additional signal generation unit; (130) Average power control unit; (150) RF upward conversion unit; (160) Transmission unit; (AA) Broadcast data; (BB) Additional data
Abstract translation: 目的：提供一种用于在数字广播系统中发送和接收附加数据的装置及其方法，用于发送和接收保证在低SNR（信噪比）和多径环境中的良好接收性能的附加数据 。 构成：IF（中频）广播信号生成单元（110）通过FEC（前向纠错）生成IF频带的广播信号，并输入广播数据的调制。 IF附加信号生成单元（120）通过使用DSSS（直接序列扩频）生成作为IF频带的附加信号的附加输入数据。 RF（射频）向上转换单元（150）将在信号组合单元（140）中产生的附加信号和广播信号的组合信号转换成RF频带。 发送单元（160）发送所生成的RF频带的组合信号。 （附图标记）（110）IF广播信号生成单元; （120）IF附加信号发生单元; （130）平均功率控制单元; （150）RF向上转换单元; （160）传输单元; （AA）广播资料; （BB）附加数据
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公开(公告)号：KR101211115B1
公开(公告)日：2012-12-11
申请号：KR1020090002405
申请日：2009-01-12
Applicant: 한국전자통신연구원
Abstract: 또한프레임헤더는복수의서비스각각에대한정보를포함하며, 복수의서비스각각에대한정보는, 복수의서비스각각이할당된서브밴드및 심볼에대한정보, 복수의서비스각각의채널부호화레벨에대한정보및 복수의서비스각각의디지털변조레벨에대한정보를포함한다.
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公开(公告)号：KR1020110047955A
公开(公告)日：2011-05-09
申请号：KR1020100051402
申请日：2010-05-31
Applicant: 한국전자통신연구원 , 충남대학교산학협력단
IPC: H04L27/34
CPC classification number: H04L27/02 , H03C1/547 , H03D1/2245 , H03D2200/008
Abstract: PURPOSE: An apparatus and a method for transmitting/receiving data in a communication system are provided to receive a complex signal of broadcasting data by using a vestigial sideband/single side band modulation system. CONSTITUTION: A serial/parallel conversion part(110) changes data into an I signal and a Q signal. Multiplicators(115,120) multiply orthogonal sequence and transformed I signal and Q signal. Transform units(130,135) hilbert-transform the I signal and Q signal. Combiners(140,145) add the hilbert-transformed I signal and Q signal to the I signal and Q signal. An intermediate frequency/radio frequency part(150) transmits an up-conversed signal.
Abstract translation: 目的：提供一种用于在通信系统中发送/接收数据的装置和方法，以通过使用残留边带/单边带调制系统来接收广播数据的复合信号。 构成：串行/并行转换部分（110）将数据改变为I信号和Q信号。 乘法器（115,120）乘以正交序列和变换的I信号和Q信号。 变换单元（130,135）希尔伯特变换I信号和Q信号。 组合器（140,145）将希尔伯特变换的I信号和Q信号加到I信号和Q信号上。 中频/射频部分（150）发送上传信号。
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公开(公告)号：KR1020110047118A
公开(公告)日：2011-05-06
申请号：KR1020100082856
申请日：2010-08-26
Applicant: 한국전자통신연구원
IPC: H04B7/005
CPC classification number: H04L27/04 , H04L1/0003 , H04L1/004 , H04L27/183 , H04L27/3488 , H04W52/26
Abstract: PURPOSE: An apparatus and method for improving high-power signal receiving performance using low-power signals are provided to hierarchically modulate primary service data and supplementary information data for supplementing the primary service data and transmit the modulated data. CONSTITUTION: A main service modulation unit(320) modulates main service data, and a supplementary information generator(330) generates supplementary information data of the main service data. A supplementary information modulator(340) modulates the supplementary information data, and a signal combiner(350) combines the output of the main service modulator with the output of the supplementary information modulator. A signal transmitter(360) transmits the combined signal of the signal combiner.
Abstract translation: 目的：提供一种使用低功率信号改善高功率信号接收性能的装置和方法，以对主服务数据和补充信息数据进行分级调制，以补充主业务数据并发送调制数据。 构成：主服务调制单元（320）调制主服务数据，辅助信息生成器（330）生成主服务数据的补充信息数据。 补充信息调制器（340）调制补充信息数据，并且信号组合器（350）将主业务调制器的输出与补充信息调制器的输出组合。 信号发送器（360）发送信号组合器的组合信号。
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