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    • 1. 发明授权
    • DBLAST 시스템의 송수신 방법
    • DBLASTDiagonal Bell实验室分层时空系统的传输/接收方法
    • KR100625074B1
    • 2006-09-19
    • KR1020030017980
    • 2003-03-22
    • 홍대식한화시스템 주식회사
    • 홍대식이규하
    • H04L1/00
    • DBLAST(Diagonal Bell Laboratories Layered Space-Time) 시스템에 관한 것으로서 더욱 상세하게는 수신 신호의 신호대잡음비(SN ratio)를 개선함에 의해 오류 정정 능력을 개선시키는 방법 및 이에 적합한 장치에 관한 것이다.
      본 발명에 따른 개선된 DBLAST 송수신 방법은 전송 신호(제1신호)를 발생하는 과정; 상기 제1신호의 서브 스트림을 역배열하여 제2신호의 서브 스트림을 발생하는 과정; 상기 제1신호 및 제2신호들을 다수의 송신 안테나들을 통하여 시간적 및 공간적으로 분산시켜 송신하는 과정; 다수의 수신 안테나들을 통하여 상기 제1신호 및 제2신호를 수신하는 과정; 상기 제1신호 및 제2신호의 서브 스트림을 서로 엇갈려서 결합하여 수신 신호를 얻는 과정을 포함하는 것을 특징으로 한다.
      본 발명에 따른 DBLAST 시스템은 송신기에서는 전송할 제1신호의 서브스트림과 이를 역배열하여 얻어지는 제2신호의 서브 스트림을 동시에 전송하고, 수신기에서는 수신된 두 개의 서브 스트림을 엇갈리게 결합하여 신호대잡음비가 개선된 수신 신호를 얻음으로써 DBLAST 시스템의 오류 정정 능력을 개선하는 효과를 가진다.
    • 2. 发明公开
    • DBLAST 시스템의 송수신 방법
    • DBLAST系统的发送/接收方法及其发送器和接收器,特别是在接收端接收到两个子接口的特殊连接
    • KR1020040086881A
    • 2004-10-13
    • KR1020030017980
    • 2003-03-22
    • 홍대식한화시스템 주식회사
    • 홍대식이규하
    • H04L1/00
    • H04L1/0631
    • PURPOSE: A transmitting/receiving method of a DBLAST(Diagonal Bell LAboratories layered Space-Time) and a transmitter and a receiver for the same are provided to obtain receiving signals having improved signal to noise ratio by transmitting simultaneously a substream and a reversely-arranged substream. CONSTITUTION: A first signal as a transmitting signal is generated. A second stream is generated by arranging reversely bits of the first signal. The first signal and the second signal are transmitted to a plurality of transmitting antennas. A plurality of receiving antennas receive the first signal and the second signal. The receiving signals are obtained by cross-linking bits of the first signal and bits of the second signal.
    • 目的:提供DBLAST(对角铃声分层空间时间)的发送/接收方法及其发射机和接收机,以通过同时发送子流和反向布置来获得具有改善的信噪比的接收信号 子。 构成:产生作为发送信号的第一信号。 通过布置第一信号的反向比特来产生第二流。 第一信号和第二信号被发送到多个发送天线。 多个接收天线接收第一信号和第二信号。 通过将第一信号的比特和第二信号的比特交叉来获得接收信号。
    • 4. 发明授权
    • 다중 사용자 MIMO 중계 시스템에서 기지국의 간섭신호제거 방법
    • 用于消除多台MIMO继电器系统中基站干扰信号的方法
    • KR100984737B1
    • 2010-10-01
    • KR1020090052831
    • 2009-06-15
    • 한화시스템 주식회사
    • 이규하박원우이충용유병욱
    • H04B7/06H04B7/14
    • H04B7/15585H04B7/026H04B7/0452
    • PURPOSE: A method for removing a interference signal of a base station in a multi user MIMO(Multi Input Multi Output) relay system is provided to make base station to take full charge of role of a relay station, thereby relay station can provide effect which used a pretreatment filter only by a simple power restriction parameter. CONSTITUTION: A signal transmitted from the relay station is estimated by using channel information between a relay station(200) and a terminal(300) and a signal transmitted to a terminal. A base station estimates a signal which will transmit to the relay station through a transmission signal of the estimated relay station. It multiplies a power restriction coefficient which is received from the base station with a signal which is pretreated. By considering the state of a channel between the relay station and a terminal, it estimated a signal which will transmit the relay station by applying a THP(Thomlinson-Harashima precoding).
    • 目的:提供一种用于消除多用户MIMO(多输入多输出)中继系统中的基站干扰信号的方法,使基站对中继站充分负责,由此中继站可提供如下效果: 仅使用简单的功率限制参数的预处理过滤器。 构成:通过使用中继站(200)和终端(300)之间的信道信息和发送到终端的信号来估计从中继站发送的信号。 基站估计将通过所估计的中继站的发送信号向中继站发送的信号。 它将从基站接收的功率限制系数与预处理的信号相乘。 通过考虑中继站和终端之间的信道的状态,它估计了通过应用THP(Thomlinson-Harashima预编码)来发送中继站的信号。
    • 5. 发明公开
    • 궤환간섭신호 제거를 위한 중계장치
    • 用于消除反馈干扰的继电器
    • KR1020090123295A
    • 2009-12-02
    • KR1020080049291
    • 2008-05-27
    • 한화시스템 주식회사
    • 이규하
    • H04B7/14H04B5/00
    • H04B7/15564
    • PURPOSE: A repeating device for removing a feedback interference signal is provided to remove the feedback interference signal properly while keeping an SNR(Signal to Noise Ratio) performance by converting a frequency of the signal from which the feedback interference signal is removed into a high frequency. CONSTITUTION: A receiving antenna(10) receives a signal transmitted through the wireless network. A low frequency converter(20) converts a frequency of the received signal into a low frequency. A feedback interference remover(30) estimates a feedback interference signal in a digital area. The feedback interference remover removes the feedback interference signal in an analog area. A high frequency convert(40) converts the frequency of the signal from which the feedback interference signal is removed into a high frequency.
    • 目的:提供一种用于去除反馈干扰信号的中继装置,通过将反馈干扰信号被去除的信号的频率转换成高频来适当地去除反馈干扰信号,同时保持SNR(信噪比)性能 。 构成:接收天线(10)接收通过无线网络发送的信号。 低频转换器(20)将接收信号的频率转换成低频。 反馈干扰去除器(30)估计数字区域中的反馈干扰信号。 反馈干扰去除器去除模拟区域中的反馈干扰信号。 高频转换器(40)将反馈干扰信号被去除的信号的频率转换成高频。
    • 6. 发明授权
    • 영차 업샘플링 인터폴레이션 CIC 필터
    • ZERO-DIGREE UPSAMPLING CASCADED INTEGRATOR-COMB FILTER
    • KR100879971B1
    • 2009-01-23
    • KR1020070095217
    • 2007-09-19
    • 한화시스템 주식회사
    • 이규하
    • H03H17/04
    • H03H17/0671H03H17/0635H03H17/0657H03H17/0685
    • The zero order up-sampling interpolation CIC filter (zero-degree upsampling CIC(Cascaded Integrator Comb) filter) is provided to obtain the same performance as the conventional cascaded integrator comb filter by using unit Integrator and unit Comb filter of (N-1)s without up-sampler. The CIC interpolation filter comprises the Comb filter section(120) having unit Comb filters of the integrator part(110) and (N-1) having unit integrator of (N-1). The Comb filter section is combined with the zero order sampler(130) for performing the zero order up-sampling. The transfer function of the CIC interpolation filter is same as that of the transfer function of the cascaded integrator comb filter of (N-1) order. The cascaded integrator comb filter of the first order generates the null in the frequency of image in interpolation. The comb filter having L of 1 tap coefficient of the Zero-Padding up-sampler are combined and the zero order up-sampling is performed in the cascaded integrator comb filter.
    • 提供零级上采样插值CIC滤波器(零度上采样CIC(级联积分梳)滤波器),以通过使用(N-1)的单位积分器和单位梳状滤波器来获得与常规级联积分器梳状滤波器相同的性能, 没有上采样器。 CIC内插滤波器包括具有积分器部分(110)的单位梳状滤波器和具有(N-1)的单位积分器的(N-1)的梳状滤波器部分(120)。 梳状滤波器部分与零阶采样器(130)组合,用于执行零阶上采样。 CIC内插滤波器的传递函数与(N-1)级联级联积分器梳状滤波器的传递函数的传递函数相同。 第一级的级联积分梳状滤波器在插值中产生图像频率的零点。 组合零填充上取样器的1抽头系数的梳状滤波器的梳状滤波器,并且在级联积分器梳状滤波器中执行零级上采样。
    • 7. 发明授权
    • MMR 시스템에서의 트랜스패런트 중계국을 위한프레임구조를 이용한 통신 방법
    • 用于在透明中继站框架结构中进行通信的方法
    • KR100855004B1
    • 2008-08-28
    • KR1020070024209
    • 2007-03-12
    • 한화시스템 주식회사
    • 엄재형이규하김창균김영재
    • H04L29/02H04B7/26
    • H04B7/15521H04B7/2606
    • A communication method using a frame structure for transparent relay station in a MMR system is provided to obtain a diversity effect by transmitting simultaneously a preamble such as MR-BS, a FCH, and a MAP. A first frame including first channel information of a preamble, FCH, and a MAP is received from a base station. A second frame to be transmitted to a lower node is composed by using second channel information generated from the first channel information and data. The second frame is transmitted to the lower node. The second frame includes a downlink sub-frame and an uplink sub-frame. The downlink sub-frame includes a first region comprising the second channel control information and a second region for allocating data to be transmitted to a mobile terminal connected to a transparent relay station or a lower relay station. The uplink sub-frame includes a burst to be transmitted from the mobile terminal or the relay station to the base station.
    • 提供一种在MMR系统中使用用于透明中继站的帧结构的通信方法,以通过同时发送诸如MR-BS,FCH和MAP的前同步码来获得分集效果。 从基站接收包括前导码,FCH和MAP的第一信道信息的第一帧。 通过使用从第一信道信息和数据生成的第二信道信息来构成要发送到下层节点的第二帧。 第二帧被传送到下层节点。 第二帧包括下行链路子帧和上行链路子帧。 下行链路子帧包括包括第二信道控制信息的第一区域和用于分配待发送到连接到透明中继站或下位中继站的移动终端的数据的第二区域。 上行链路子帧包括要从移动终端或中继站发送到基站的突发。
    • 8. 发明公开
    • 신호간 간섭을 막는 중계 장치
    • 用于保护信号干扰的继电器
    • KR1020080041544A
    • 2008-05-13
    • KR1020070035149
    • 2007-04-10
    • 한화시스템 주식회사
    • 이규하
    • H04B7/14H04B15/00H04B7/15H04L27/26
    • H04B7/15585H04L25/0204H04L27/2695
    • A relay apparatus for preventing inter-signal interference is provided to compensate a phase element caused by delay in a channel estimating unit of a terminal by enabling a relayed signal and a base station signal to be applied as multi signal sources within a cyclic prefix at time after synchronization, and improve receiving performance of the multi signal source by diversity for improving power of signals, thereby providing smooth communication environment. A modulating/demodulating unit(420-1,420-2.430-1,430-2) demodulates a received signal and modulates the signal for transmission. A multiplexer selectively transmits one of the signal modulated by the modulating/demodulating unit, a preamble signal and a null signal having no output. A synchronizing unit(400) generates a signal for uplink or downlink conversion of the signal and for enabling the multiplexer to select one of the modulated signal, preamble signal and the null signal having no output. The synchronizing unit comprises a frame synchronizing unit, a delay compensating unit and a switch timing generating unit.
    • 提供一种用于防止信号间干扰的中继装置,用于通过使中继信号和基站信号在时间周期内作为循环前缀中的多个信号源来补偿由终端的信道估计单元中的延迟引起的相位元件 同步后,通过分集提高多信号源的接收性能,提高信号功率,从而提供平滑的通信环境。 调制/解调单元(420-1,420-2.430-1,430-2)对接收到的信号进行解调并调制该信号进行传输。 复用器选择性地发送由调制/解调单元调制的信号中的一个,前导信号和没有输出的空信号。 同步单元(400)产生用于信号的上行链路或下行链路转换的信号,并且使多路复用器能够选择调制信号,前导码信号和没有输出的空值信号之一。 同步单元包括帧同步单元,延迟补偿单元和切换定时产生单元。
    • 10. 发明授权
    • 룩업 테이블을 이용한 블록 보간 필터 구조
    • 룩업테이블을이용한블록보간필터구조
    • KR100425418B1
    • 2004-03-30
    • KR1020010054978
    • 2001-09-07
    • 한화시스템 주식회사
    • 이규하이충용
    • H03H17/02
    • H03K5/159H03H17/0657
    • The present invention based on the LUT enables to perform a filtering at a low speed on a place where a high-speed process is necessary. Particularly, the LUT structure having a block structure is advantageous for filtering at a low speed, and for decreasing memory usage. The filter structure proposed by the present invention provides the equivalent performances to those of the traditional ones, yet conducts the filtering on an interpolation process requiring a high-speed process previously at a low speed and at a low power instead. Moreover, compared to the traditional LUT based filter, the present invention provides a new structure with a decreased memory demand. In short, the present invention provides a new filter structure that enables to implement an interpolation filter, a high-speed processor of a sending end in a wireless telecommunication system, with a low complexity and a low power consumption.
    • 基于LUT的本发明使得能够在需要高速处理的地方以低速进行滤波。 特别地,具有块结构的LUT结构对于低速过滤和减少存储器使用是有利的。 本发明所提出的滤波器结构提供了与传统滤波器结构等效的性能,但是在先前以低速和低功率需要高速处理的内插处理上进行滤波。 而且,与传统的基于LUT的滤波器相比,本发明提供了具有减少的存储器需求的新结构。 简言之,本发明提供了一种新的滤波器结构,其能够以低复杂度和低功耗实现无线电信系统中的发送端的高速处理器的内插滤波器。