公开(公告)号：KR1020120049807A

公开(公告)日：2012-05-17

申请号：KR1020110113076

申请日：2011-11-02

Applicant: 한국전자통신연구원 ,  성균관대학교산학협력단

Inventor： 이미영 ,  구본태 ,  권영민 ,  배성재 ,  정민영

IPC: H04W48/16 ,  H04W16/32

CPC classification number: H04W48/16 ,  H04W16/32 ,  H04W36/20 ,  H04W84/045

Abstract: PURPOSE: A non-registered macro cell terminal searching method is provided to confirm a femto cell base station about existence of a macro cell terminal. CONSTITUTION: If a non-registered MUE(Macro cell User Equipment)(12) is generated, an S-MeNB(Source MeNB(Macro cell evolved-NodeB))(10) requests SI(System Information) of a neighbor femtocell BS(Base Station)(20). The non-registered MUE transfers system information of the neighbor femtocell BS to a macro cell base station. The macro cell base station transfers the existence of the non-registered MUE to the neighbor femtocell BS.

Abstract translation: 目的：提供一种非注册的宏小区终端搜索方法，以确定毫微微小区基站关于宏小区终端的存在。 规定：如果生成未注册的MUE（宏小区用户设备）（12），则S-MeNB（源MeNB（宏小区演进NodeB））（10）请求邻居毫微微小区BS（SI）的SI（系统信息） 基站）（20）。 未注册的MUE将相邻毫微微小区BS的系统信息传送到宏小区基站。 宏小区基站将未注册的MUE的存在传送到邻居毫微微小区BS。

公开(公告)号：KR1020120042138A

公开(公告)日：2012-05-03

申请号：KR1020100103661

申请日：2010-10-22

Applicant: 한국전자통신연구원 ,  한국과학기술원

Inventor： 백영석 ,  구본태 ,  명정호 ,  강준혁

IPC: H04J11/00 ,  H04B7/26

CPC classification number: H04W48/16 ,  H04J11/0076 ,  H04L27/2607

Abstract: PURPOSE: A cell search method in a wireless communication system is provided to detect a SSS(Secondary Synchronization Signal) sequence and a cross correlation by calculating a sequence in a corresponding sequence group. CONSTITUTION: Symbol timing and frequency synchronization are estimated by calculating the cross correlation between a PSS sequence which is a first synchronous signal and transmitted to a frame and the PSS(Primary Synchronization Signal) sequence already known. A cell ID is extracted through an estimation procedure(S10). A first cross correlation is calculated according to the PSS sequence which is a second synchronous signal and transmitted to the frame and a SSS(Secondary Synchronization Signal) sequence group(S20). A sequence group is selected(S30) A second cross correlation is calculated between all sequences belonging to a selected sequence group and the SSS sequence received(S40). A cell group ID is extracted through the sequence having the highest cross correlation(S50).

Abstract translation: 目的：提供无线通信系统中的小区搜索方法，通过计算相应序列组中的序列来检测SSS（辅同步信号）序列和互相关。 构成：通过计算作为第一同步信号并发送到帧的PSS序列与已知的PSS（主同步信号）序列之间的互相关来估计符号定时和频率同步。 通过估计过程提取小区ID（S10）。 根据作为第二同步信号并发送到帧的PSS序列和SSS（辅同步信号）序列组计算第一互相关（S20）。 选择序列组（S30）在属于所选序列组的所有序列和接收的SSS序列之间计算第二互相关（S40）。 通过具有最高相关性的序列提取小区组ID（S50）。

公开(公告)号：KR101057659B1

公开(公告)日：2011-08-18

申请号：KR1020080131604

申请日：2008-12-22

Applicant: 한국전자통신연구원

Inventor： 이주현 ,  구본태 ,  엄낙웅

IPC: H04N19/42

Abstract: 본 발명은 멀티미디어 디코딩 장치에 관한 것으로서, 마이크로프로세서의 명령을 전달하는 커맨드 버스와 디코딩 처리에 필요한 데이터를 전송하는 데이터 버스를 독립된 구조로 구현하고, 상기 커맨드 버스를 통해 마이크로프로세서가 하드웨어 디코딩 코어의 각 블록으로 명령을 전송하면, 상기 명령에 따라서 하드웨어 디코딩 코어의 각 블록이 상기 데이터 버스를 통해 메모리에 저장된 데이터를 읽어와 디코딩 처리를 수행하거나, 디코딩된 데이터를 상기 메모리에 저장하도록 구현하고, PID 매칭 유닛을 통해 하드웨어적으로 선택된 채널에 대응하는 TS 패킷을 추출하여 ES 패킷까지의 파싱을 수행하도록 구현함으로써, 마이크로프로세서의 작업 부하 및 메모리 대역폭을 감소시키면서 효율성을 높일 수 있는 것이다.
H.264, T-DMB, 디코딩 장치, 커맨드 버스, 데이터 버스

Abstract translation: 本发明涉及一种多媒体解码设备，其中用于发送微处理器的命令的命令总线和用于发送解码处理所需的数据的数据总线在独立结构中实现，并且微处理器 其中，硬件解码核的每个模块通过数据总线读取存储器中存储的数据，并根据该命令执行解码处理或将解码后的数据存储在存储器中， 通过提取与硬件中选择的通道对应的TS包并对ES包进行解析，从而提高效率，同时减少微处理器的工作量和存储带宽。

公开(公告)号：KR1020110068088A

公开(公告)日：2011-06-22

申请号：KR1020090124923

申请日：2009-12-15

Applicant: 한국전자통신연구원

Inventor： 이주현 ,  구본태

IPC: H04B7/04 ,  H04L27/26

CPC classification number: H04L27/265 ,  H04L1/02

Abstract: PURPOSE: A preamble detection apparatus for efficiently detecting preamble is provided to obtain antenna diversity effect which uses a signal of an antenna. CONSTITUTION: A plurality of antennas(111~113) receives an OFDM(Orthogonal Frequency Division Multiplexing) signal. A plurality of OFDM demodulation units(121~123) FFT(Fast Fourier Transform)about each OFDM signal. A CIR(Channel Impulse Response) generator(130) generates a channel impulse response. A combining unit(140) combines each channel impulse response signal. A Doppler shift canceller(150) removes Doppler shift in a combined CIR signal. The Doppler shift canceller generates a power delay profile for preamble detection.

Abstract translation: 目的：提供一种用于高效检测前导码的前同步码检测装置，以获得使用天线信号的天线分集效应。 构成：多个天线（111〜113）接收OFDM（正交频分复用）信号。 关于每个OFDM信号的多个OFDM解调单元（121〜123）FFT（快速傅里叶变换）。 CIR（信道脉冲响应）发生器（130）产生信道脉冲响应。 组合单元（140）组合每个信道脉冲响应信号。 多普勒频移消除器（150）消除组合CIR信号中的多普勒频移。 多普勒频移消除器产生用于前导码检测的功率延迟分布。

公开(公告)号：KR1020110068086A

公开(公告)日：2011-06-22

申请号：KR1020090124921

申请日：2009-12-15

Applicant: 한국전자통신연구원

Inventor： 배영환 ,  조한진 ,  구본태

IPC: G06F19/00 ,  G06F17/50

CPC classification number: G06F17/5054

Abstract: PURPOSE: A method of FPGA technology mapping based on LUT for minimization of delay time is provided to improve the performance of the entire system by producing a cost function in which design area and time-delay are considered and a division cost function in which a dynamic programming method is applied. CONSTITUTION: A combinational logic circuit for the look-up table mapping(LUT mapping) is extracted from the input order circuit(S100). The arrival time of the input signal for the gate input and output of the combination logic circuit is calculated(S200). The combination logic circuit is converted to a DAG graph type(S300). A tree is divided based on the nodes which have two or more fan-out in the DAG graph(S400). The LUT circuit of the combination logic circuit is created by mapping the trees divided into dynamic program schemes(S500). A LUT net list is created by assigning the state memory elements to each of the flipflop of the LUT circuit(S600).

Abstract translation: 目的：提供一种基于LUT的FPGA技术映射方法，以最小化延迟时间，通过产生考虑设计区域和时间延迟的成本函数以及分割成本函数来提高整个系统的性能，其中动态 编程方法。 构成：从输入顺序电路提取用于查找表映射（LUT映射）的组合逻辑电路（S100）。 计算组合逻辑电路的栅极输入和输出的输入信号的到达时间（S200）。 组合逻辑电路转换为DAG图形类型（S300）。 基于在DAG图中具有两个或更多扇出的节点（S400），分割树。 组合逻辑电路的LUT电路是通过映射划分为动态程序方案的树（S500）来创建的。 通过将状态存储器元件分配给LUT电路的每个触发器来创建LUT网络列表（S600）。

公开(公告)号：KR1020110037344A

公开(公告)日：2011-04-13

申请号：KR1020090094747

申请日：2009-10-06

Applicant: 한국전자통신연구원

Inventor： 백영석 ,  구본태

IPC: H04B1/69

CPC classification number: H04L25/03872

Abstract: PURPOSE: A scramble apparatus and an operating method thereof are provided to minimize the time taken for obtaining a scramble initial state code. CONSTITUTION: A scramble initial state code generating unit(210) generates plural scramble initial state code, and a memory unit(220) stores and provides the generated initial state code. A scramble performing unit(230) reads out the scramble initial state code stored in the memory unit. The scramble performance unit generates a scramble code for scrambling an input signal.

Abstract translation: 目的：提供加扰装置及其操作方法以最小化获得加扰初始状态码所花费的时间。 构成：加扰初始状态码生成部（210）生成多个加扰初始状态码，存储部（220）存储并提供生成的初始状态码。 加扰执行单元（230）读出存储在存储单元中的加扰初始状态代码。 加扰性能单元产生用于加扰输入信号的扰码。

公开(公告)号：KR1020110019691A

公开(公告)日：2011-02-28

申请号：KR1020100007879

申请日：2010-01-28

Applicant: 한국전자통신연구원 ,  인하대학교 산학협력단

Inventor： 장경희 ,  모하이센,마나 ,  안홍선 ,  백영석 ,  구본태

IPC: H04B7/04 ,  H04B1/06 ,  H04L27/00

CPC classification number: H04L1/005 ,  H04B1/02 ,  H04B7/0413 ,  H04B7/0697

Abstract: PURPOSE: A method for detecting a signal by grouping a constellation group in a multi antenna system of a spatial multiplexing mode is provided to separate a tree searching step of a QR-decomposition with M-algorithm into partial detecting steps and perform the steps in parallel or repetitively, thereby reducing operation complexity. CONSTITUTION: A constellation group is a symbol candidate group. The constellation group is separated into partial groups by grouping. The feature of a QRDM(QR-decomposition with M-algorithm) is that a constellation group is separated into partial groups with the same cardinality. A tree search process of the QRDM is partially and multiply detected. A signal for performing the partial and multiple detection in parallel or repetitively is detected.

Abstract translation: 目的：提供一种通过对空间复用模式的多天线系统中的星座组进行分组来检测信号的方法，以将具有M-算法的QR分解的树搜索步骤分离成部分检测步骤，并且并行地执行步骤 或重复地，从而降低操作复杂性。 构成：星座组是符号候选组。 星座组通过分组分为部分组。 QRDM（具有M-algorithm的QR分解）的特征是星座组被分成具有相同基数的部分组。 QRDM的树搜索过程被部分地和多次检测。 检测用于并行或重复执行部分和多次检测的信号。

公开(公告)号：KR1020100073026A

公开(公告)日：2010-07-01

申请号：KR1020080131604

申请日：2008-12-22

Applicant: 한국전자통신연구원

Inventor： 이주현 ,  구본태 ,  엄낙웅

IPC: H04N19/42

CPC classification number: H04N19/188 ,  H04H20/72 ,  H04H2201/11 ,  H04N21/4343

Abstract: PURPOSE: A multimedia decoding device is provided to reduce a working load in a microprocessor by reading and writing required data of a decoding core unit through a data bus. CONSTITUTION: A hardware decoding core(23) reads out data from a memory(25) through a memory controller(24), and decodes the processed data. A command bus(20a) transfers a command of a microprocessor(22) to the hardware decoding core. A data bus(20b) transfers the data for a decoding process through the connection between the memory controller and the hardware decoding core.

Abstract translation: 目的：提供一种多媒体解码装置，通过数据总线读取和写入解码核心单元的所需数据来减少微处理器的工作负载。 构成：硬件解码核心（23）通过存储器控制器（24）从存储器（25）读出数据，并解码处理后的数据。 命令总线（20a）将微处理器（22）的命令传送到硬件解码核心。 数据总线（20b）通过存储器控制器和硬件解码核心之间的连接传送用于解码处理的数据。

公开(公告)号：KR1020090061688A

公开(公告)日：2009-06-17

申请号：KR1020070128585

申请日：2007-12-12

Applicant: 한국전자통신연구원

Inventor： 김덕환 ,  구본태

IPC: H04N7/08 ,  H04N7/015

CPC classification number: H04N7/0803 ,  H04H2201/11 ,  H04L25/03

Abstract: An advanced T-DMB receiver and a fast information channel controlling apparatus are provided to simplify the circuit structure of a DMB receiver and offer various services. An advanced T-DMB receiver comprises a basic layer baseband modem(200), enhancement layer baseband modem(500) and a fast information channel controlling apparatus. The basic layer baseband modem restores a basic layer FIC(Fast Information Channel) from a received signal. The enhancement layer baseband modem restores an enhancement layer FIC from the received signal. The fast information channel controlling apparatus detects kinds of the basic layer FIC and enhancement layer FIC, and then decodes one of the FICs in response to the detection result.

Abstract translation: 提供了先进的T-DMB接收机和快速信息通道控制装置，以简化DMB接收机的电路结构并提供各种服务。 高级T-DMB接收机包括基本层基带调制解调器（200），增强层基带调制解调器（500）和快速信息信道控制装置。 基本层基带调制解调器从接收到的信号中恢复基本层FIC（快速信息信道）。 增强层基带调制解调器从接收信号中恢复增强层FIC。 快速信息信道控制装置检测基本层FIC和增强层FIC的种类，然后响应于检测结果对一个FIC进行解码。

公开(公告)号：KR100902842B1

公开(公告)日：2009-06-16

申请号：KR1020070128255

申请日：2007-12-11

Applicant: 한국전자통신연구원

Inventor： 이주현 ,  구본태

IPC: H04L27/26

CPC classification number: H04L27/2628 ,  H04L25/0232

Abstract: A fading channel modeling device of a communication system and a channel modeling method thereof are provided to reduce a calculation quantity for performing a simulation of the communication system by interpolating a channel gain when beginning the simulation after calculating the channel gain before the simulation. A random noise passes through a fading filter and a complex channel gain of a frequency domain is produced(S10). The complex channel gain adding the fading effect is produced by filtering the random noise in the fading filter according to a fading factor(S20). The complex channel gain of the frequency domain is inverse-discrete-Fourier-transformed and the complex channel gain of the outputted time domain is stored(S30). The complex channel gain of the stored time domain is interpolated according to the interpolation factor and is provided to the complex channel gain for the simulation(S40).

Abstract translation: 提供一种通信系统的衰落信道建模装置及其信道建模方法，用于通过在模拟之前计算信道增益之后开始模拟时内插通道增益来减少用于执行通信系统仿真的计算量。 随机噪声通过衰落滤波器并产生频域的复信道增益（S10）。 通过根据衰落因子对衰落滤波器中的随机噪声进行滤波，产生增加衰落效应的复信道增益（S20）。 频域的复信道增益是反离散傅里叶变换，并且存储输出时域的复信道增益（S30）。 存储时域的复信道增益根​​据内插因子进行内插，并提供给仿真的复信道增益（S40）。