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    • 1. 发明公开
    • 확장 시퀀스 생성 방법 및 이를 이용한 무선 송수신 장치 및 방법
    • 用于产生扩展序列的方法和无线传输/接收方法和使用该方法的装置
    • KR1020130073623A
    • 2013-07-03
    • KR1020110141576
    • 2011-12-23
    • 한국전자통신연구원
    • 남승현김희욱홍태철강군석구본준안도섭
    • H04J11/00H04J13/10
    • H04L27/2605H04J11/00H04J13/0059H04L27/2615H04W74/0833
    • PURPOSE: A generating method of an extended sequence, a radio transmitter-receiver thereof, and a method thereof are provided to reduce interference among sequences, and to improve detection performance. CONSTITUTION: A radio transmitter (900) comprises: a sequence extender (930), a preamble generator (950), and a transmitter (970). The sequence extender comprises: a sequence generator (933), a circulating transition unit (935), and an operation unit (937). The sequence extender generates an extended sequence by adding up more than two sequences. The sequence generator produces more than two CAZACs (Constant Amplitude Zero Auto-Correlation). The circulating transition unit transits more than two CAZAC sequences produced by the sequence generator respectively. The operation unit produces an extended sequence by adding up the transited CAZAC sequences. The preamble generator produces a preamble by using the extended sequence. The transmitter transmits the preamble. [Reference numerals] (930) Sequence extender; (933) Sequence generator; (935) Circulating transition unit; (937) Operation unit; (950) Preamble generator; (970) Transmitter
    • 目的:提供扩展序列的生成方法,其无线电发射机 - 接收机及其方法,以减少序列之间的干扰,并提高检测性能。 构成:无线电发射机(900)包括:序列扩展器(930),前导码生成器(950)和发射机(970)。 序列扩展器包括:序列发生器(933),循环转移单元(935)和操作单元(937)。 序列扩展器通过相加多于两个序列生成扩展序列。 序列发生器产生两个以上的CAZAC(恒幅零自相关)。 循环转移单元分别转换由序列发生器产生的多于两个的CAZAC序列。 操作单元通过将转移的CAZAC序列相加来产生扩展序列。 前导码生成器通过使用扩展序列产生前导码。 发射机发送前导码。 (附图标记)(930)序列扩展器; (933)序列发生器; (935)循环过渡单位; (937)操作单元; (950)前导码发生器; (970)变送器
    • 2. 发明公开
    • 심볼 인터리버를 이용한 통신 방법 및 장치
    • 使用符号交互的通信方法和设备
    • KR1020120040554A
    • 2012-04-27
    • KR1020100102029
    • 2010-10-19
    • 한국전자통신연구원전북대학교산학협력단
    • 홍태철김희욱남승현강군석구본준안도섭여성문김수영
    • H03M13/27H04W84/06
    • H04L1/0071H03M13/2732H03M13/6508H03M13/6525H04L1/0033H04L1/0041
    • PURPOSE: A communication method using symbol interleaving and an apparatus thereof are provided to reduce a data transmission error when AMC(Adaptive Modulation and Coding) is used in an LTE(Long Term Evolution) base satellite communication system. CONSTITUTION: An information exchange unit(110) receives memory information and service information from a terminal device(200). An interleaver use determination unit(120) determines the active condition of an interleaver based on the service information. An interleaver information determination unit(130) determines interleaver information based on resource allocation type information and the memory information. An encoding unit(140) modulates and encodes data. A symbol interleaver(150) interleaves data, which is encoded by using the interleaver information, by symbol. A data transmission unit(160) transmits the data interleaved by the symbol to a terminal.
    • 目的:提供使用符号交织的通信方法及其装置,以在LTE(长期演进)基础卫星通信系统中使用AMC(自适应调制和编码)时减小数据传输错误。 构成:信息交换单元(110)从终端设备(200)接收存储器信息和服务信息。 交织器使用确定单元(120)基于服务信息确定交织器的活动状态。 交织信息确定单元(130)基于资源分配类型信息和存储器信息来确定交织器信息。 编码单元(140)对数据进行调制和编码。 符号交织器(150)通过符号对使用交织器信息进行编码的数据进行交织。 数据发送单元(160)将通过符号交替的数据发送到终端。
    • 4. 发明公开
    • 음성 신호 분리 장치
    • 用于分离声带信号的装置
    • KR1020120130908A
    • 2012-12-04
    • KR1020110048969
    • 2011-05-24
    • 한국전자통신연구원배재대학교 산학협력단
    • 장인선김민제백승권강경옥남승현
    • G10L19/00H04S3/00G11B20/10
    • PURPOSE: A voice signal separating device is provided to improve an estimation function of a basic frequency of main melody obtained in a non-negative matrix factorization method by sufficiently removing sounds of other musical instruments except for vocals. CONSTITUTION: A voice feature estimator(110) estimates a feature of a voice signal included in an inputted music signal. A contribution level calculator(120) calculates a contribution level of the voice signal for the music signal by using the estimated feature of the voice signal. A voice signal separator(130) separates the voice signal from the music signal by a filter gain for the voice signal based on the calculated contribution level. [Reference numerals] (110) Voice feature estimator; (120) Contribution level calculator; (130) Voice signal separator; (140) Power supply unit; (150) Main control unit
    • 目的:提供语音信号分离装置,通过充分除去除声乐之外的其他乐器的声音,提高以非负矩阵分解方法获得的主旋律的基本频率的估计功能。 构成:语音特征估计器(110)估计输入的音乐信号中包括的语音信号的特征。 贡献度计算器(120)通过使用语音信号的估计特征来计算音乐信号的语音信号的贡献度。 语音信号分离器(130)基于所计算的贡献级别将语音信号与音乐信号分离成用于语音信号的滤波器增益。 (附图标记)(110)语音特征估计器; (120)贡献水平计算器; (130)语音信号分离器; (140)电源单元; (150)主控单元
    • 9. 发明公开
    • 통신 시스템에서 데이터 수신 장치 및 방법
    • 用于在通信系统中接收数据的装置和方法
    • KR1020140029833A
    • 2014-03-11
    • KR1020120095622
    • 2012-08-30
    • 한국전자통신연구원
    • 남승현김희욱홍태철강군석구본준안도섭
    • H04B7/005
    • H04L27/2679H04L27/0014H04L27/2657H04L2027/0065H04L2027/0089
    • The present invention relates to an apparatus and a method for normally receiving data by accurately estimating and compensating for a frequency offset for a wireless frequency channel through which data are transmitted in a communication system under wireless frequency environment. In the present invention, data transmitted through the wireless frequency channel are received, the frequency offset in the wireless frequency channel from the received data is estimated based on an interpolation scheme using the periodogram, and the frequency offset is compensated to receive the data by frequency-synchronizing with the wireless frequency channel. [Reference numerals] (110) Reception unit; (120) Estimating unit; (130) Compensation unit
    • 本发明涉及一种正常地接收数据的装置和方法,用于通过在无线频率环境下的通信系统中准确地估计和补偿无线频道的频率偏移,通过该无线频率信道在通信系统中发送数据。 在本发明中,接收通过无线频道发送的数据,根据使用周期图的内插方式来估计来自接收数据的无线频率信道中的频率偏移,并且补偿频率偏移以按频率接收数据 与无线频道同步。 (附图标记)(110)接收单元; (120)估计单位; (130)补偿单位