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公开(公告)号：KR101421406B1
公开(公告)日：2014-07-23
申请号：KR1020080010538
申请日：2008-02-01
Applicant: 삼성전자주식회사 , 성균관대학교산학협력단
CPC classification number: H04L27/2688 , H04L27/2659 , H04L27/2672 , H04L27/2675
Abstract: 본 발명은 주파수 동기를 위한 상관 방법에 관한 것으로, 광대역 무선접속 통신시스템에서 수신기의 주파수 동기 방법에 있어서 수신한 신호와 기준신호 사이에 가변 간격의 차동 상관을 수행하여 가장 상관도가 높은 값을 구하는 과정과 상기 가장 상관도가 높은 값에 따라 주파수 동기를 수행하는 과정을 포함하는 것으로 다중 경로 페이딩이 존재하는 직교 주파수 분할 다중 전송 시스템의 실제 수신환경에서 대략적 주파수 동기 성능을 크게 향상시킬 수 있는 이점이 있다.
OFDM, 주파수 동기, CAZAC, FFT-
Patent Agency Ranking
公开(公告)号：KR1020100003530A
公开(公告)日：2010-01-11
申请号：KR1020080063467
申请日：2008-07-01
Applicant: 삼성전자주식회사
Inventor： 백창현
IPC: G10L21/0208 , G10L15/20
CPC classification number: G10L21/0208 , G10L2021/02166
Abstract: PURPOSE: An apparatus for canceling noise of a voice signal in an electronic device and a method thereof are provided to cancel the noise in consideration of characteristics of non-fixed noise. CONSTITUTION: A blocking matrix(250) obtains noise components by canceling a voice signal according to adjacent channels in a voice interval of an inputted signal by using an adaptive filter. A multiple input canceller(260) mixes the obtained noise components in a mute interval of the inputted signal by using the adaptive filter. A step-size decision device(230) estimates an SNR(Signal to Noise Ratio) of the inputted signal. The step-size decision device decides the step-size of the adaptive filter.
Abstract translation: 目的：提供一种用于消除电子设备中的语音信号的噪声的装置及其方法，以便考虑到非固定噪声的特性来消除噪声。 构成：通过使用自适应滤波器，阻塞矩阵（250）通过在输入信号的语音间隔中根据相邻信道取消声音信号来获得噪声分量。 多输入消除器（260）通过使用自适应滤波器将所获得的噪声分量混合在输入信号的静音间隔中。 步长决定装置（230）估计输入信号的SNR（信噪比）。 步长决定装置决定自适应滤波器的步长。
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公开(公告)号：KR1020160030842A
公开(公告)日：2016-03-21
申请号：KR1020150118027
申请日：2015-08-21
Applicant: 삼성전자주식회사
Abstract: 본개시는 LTE와같은 4G 통신시스템이후보다높은데이터전송률을지원하기제공될 5G 또는 pre-5G 통신시스템에관련된것이다. 본발명의실시예에따른무선통신시스템에서단말의동작방법은, 상기단말을위해지정된대역의식별정보를수신하는과정과, 상기대역에대한자원할당정보및 직교주파수분할다중접속(orthogonal frequency division multiple access, 이하 'OFDMA') 기법에따라생성된데이터신호를수신하는과정과, 상기자원할당정보에따라상기데이터신호를복조및 복호하는과정을포함한다.
Abstract translation: 本发明涉及一种用于在诸如LTE的4G通信系统之后支持更高数据速率的前5G或5G通信系统。 根据本发明的实施例，一种在无线通信系统中操作终端的方法包括以下步骤：接收为终端指定的频带的识别信息; 接收关于频带的资源分配信息和根据正交频分多址（OFDMA）技术生成的数据信号; 并根据资源分配信息对数据信号进行解调或解码。
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公开(公告)号：KR1020130052375A
公开(公告)日：2013-05-22
申请号：KR1020110117783
申请日：2011-11-11
Applicant: 삼성전자주식회사
CPC classification number: H04L27/36 , H04L1/0086 , H04L27/2601
Abstract: PURPOSE: An orthogonal amplitude modulation symbol mapping apparatus and a method thereof are provided to safely provide a large amount of data through a long wired cable. CONSTITUTION: A reference frequency checking unit(110) checks a frequency of a sub-currier in an OFDM(Orthogonal Frequency Division Multiplexing) symbol. A data classification unit(120) corresponds to coded data or uncoded data for an error correction to the sub-carrier. A mapping unit(130) maps a symbol which is included in a constellation which corresponds to the sub-carrier. A transceiver(140) receives and transmits a variety of information necessary for the operation of an orthogonal amplitude modulation symbol mapping apparatus(100) with an external device. A controller(150) controls the whole orthogonal amplitude modulation symbol mapping apparatus and provides processed data to a device through a modulated carrier signal. [Reference numerals] (110) Reference frequency checking unit; (120) Data classification unit; (130) Mapping unit; (140) Transceiver; (150) Controller
Abstract translation: 目的：提供一种正交幅度调制符号映射设备及其方法，通过长有线电缆安全提供大量数据。 构成：参考频率检查单元（110）在OFDM（正交频分复用）符号中检查子钳位的频率。 数据分类单元（120）对应于用于对子载波进行纠错的编码数据或未编码数据。 映射单元（130）映射包括在与子载波相对应的星座中的符号。 收发器（140）用外部设备接收和发送用于正交振幅调制符号映射设备（100）的操作所需的各种信息。 控制器（150）控制整个正交幅度调制符号映射设备，并通过调制载波信号将处理后的数据提供给设备。 （附图标记）（110）参考频率检查单元; （120）数据分类单位; （130）映射单元; （140）收发器; （150）控制器
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公开(公告)号：KR1020090084382A
公开(公告)日：2009-08-05
申请号：KR1020080010538
申请日：2008-02-01
Applicant: 삼성전자주식회사 , 성균관대학교산학협력단
CPC classification number: H04L27/2688 , H04L27/2659 , H04L27/2672 , H04L27/2675
Abstract: A correlation apparatus for frequency synchronization in a broadband wireless access communication system and a correlation method thereof are provided to improve the frequency synchronization performance by performing the frequency synchronization according to the highest correlation value. A frequency synchronizing unit(300) includes a delay and conjugate complex processor(350) and a correlator(340). The delay and conjugate complex processor delays as much as the predetermined interval after the FFT(Fast Fourier Transform) and generates a first signal by multiplying the signal after the FFT(Fast Fourier Transform) processing by the conjugate complex processed reception signal. The correlation unit receives a first signal, a second signal, and a third signal, and obtains the highest correlation value by producing the differential correlation value about the first signal and third signal. The second signal is generated by multiplying the conjugate complex of the reference signal by the delayed signal based on the reference signal. The third signal is produced by the signal delaying the second signal by the conjugate complex signal. A frequency controller(330) performs the frequency synchronization according to the highest correlation value.
Abstract translation: 提供宽带无线接入通信系统中的频率同步的相关装置及其相关方法，以通过根据最高相关值执行频率同步来提高频率同步性能。 频率同步单元（300）包括延迟和共轭复合处理器（350）和相关器（340）。 延迟和共轭复合处理器在FFT（快速傅立叶变换）之后的预定时间间隔延迟并且通过将FFT（快速傅里叶变换）处理之后的信号乘以共轭复数处理的接收信号而产生第一信号。 相关单元接收第一信号，第二信号和第三信号，并且通过产生关于第一信号和第三信号的差分相关值来获得最高相关值。 通过基于参考信号将参考信号的共轭复乘乘以延迟的信号来产生第二信号。 第三信号由通过共轭复信号延迟第二信号的信号产生。 频率控制器（330）根据最高的相关值进行频率同步。
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公开(公告)号：KR101871362B1
公开(公告)日：2018-06-27
申请号：KR1020110117783
申请日：2011-11-11
Applicant: 삼성전자주식회사
CPC classification number: H04L27/36 , H04L1/0086 , H04L27/2601
Abstract: 직교진폭변조심볼매핑장치및 방법이제공된다. 직교진폭변조심볼매핑장치는기준주파수를확인하는주파수확인부; 및상기기준주파수에기초하여, 오류정정을위한코딩이된 데이터및 오류정정을위한코딩이되지않은데이터를구분하고, 상기구분된데이터를, OFDM(Orthogonal Frequency Division Multiplexing) 심볼내의서브캐리어에대응시키는데이터분류부;를포함하며, 상기데이터분류부는상기기준주파수보다작은주파수를가지는서브캐리어에대하여상기코딩된데이터및 상기코딩안된데이터를조합하여대응시킨다.
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