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    주파수 다이버시티 송수신 장치 및 방법
    81.
    发明公开
    주파수 다이버시티 송수신 장치 및 방법 无效
    频率分集传输的方法与装置

    公开(公告)号：KR1020090115691A

    公开(公告)日：2009-11-05

    申请号：KR1020090038675

    申请日：2009-05-01

    Applicant: 한국전자통신연구원

    Inventor： 엄중선 ,  황성현 ,  고광진 ,  송명선 ,  김창주

    IPC: H04B7/02 ,  H04L27/26

    CPC classification number: H04L5/0023 ,  H04L5/003

    Abstract: PURPOSE: A frequency diversity transmission/reception apparatus and a method thereof capable of transmitting data without reduction by a transceiving antenna are provided to obtain diversity gain of frequency without reducing transfer rate of the data. CONSTITUTION: A data combination unit(200) receives data signals from encoded bitstream. The data combination unit assembles the received data signal. A sub carrier allocation unit(210) allocates the symbol to the subcarrier. The symbols are mapped in subcarrier which is adjacent to the symbols. The diversity properties of the frequency are obtained without transmitting symbols.

    Abstract translation: 目的：提供一种频率分集发送/接收装置及其能够通过收发天线发送数据而不减少的方法，以在不降低数据传送速率的情况下获得频率的分集增益。 构成：数据组合单元（200）从编码比特流接收数据信号。 数据组合单元组合接收到的数据信号。 子载波分配单元（210）将符号分配给副载波。 符号被映射在与符号相邻的子载波中。 在不发送符号的情况下获得频率的分集特性。

    무선 네트워크에서의 비콘재전송장치, 비콘재전송방법 및초기접속신청방법
    82.
    发明公开
    무선 네트워크에서의 비콘재전송장치, 비콘재전송방법 및초기접속신청방법 有权
    BEACON ECHO设备，BEACON ECHO方法和无线个人网络的初始访问请求方法

    公开(公告)号：KR1020090059824A

    公开(公告)日：2009-06-11

    申请号：KR1020070126877

    申请日：2007-12-07

    Applicant: 한국전자통신연구원

    Inventor： 고광진 ,  송명선 ,  황성현 ,  엄중선 ,  김창주 ,  유성진

    IPC: H04L12/28 ,  H04L12/24

    CPC classification number: H04W16/14 ,  H04W48/12 ,  H04W72/02 ,  H04W74/004 ,  H04W84/18

    Abstract: A beacon retransmission device using EBS in mobile network, a beacon retransmission method and an initial connection method are provided to share frequency allocation between networks by using EBP and use the frequency allocation efficiently. A beacon frame receiver(210) receives a beacon frame from a management server managing mobile network. The beacon frame comprises the beacon information for the communications in the mobile network and EBS(Echo Beacon Slot) information. The EBS information indicates EBS(Echo Beacon Slot) allocated for the beacon retransmission among the time slots of the super frame. A beacon retransmitter(220) retransmits the Beacon information for EBS.

    Abstract translation: 提供了一种在移动网络中使用EBS的信标重传装置，信标重发方法和初始连接方法，以通过使用EBP共享网络之间的频率分配并且有效地使用频率分配。 信标帧接收机（210）从管理移动网络的管理服务器接收信标帧。 信标帧包括用于移动网络中的通信的信标信息和EBS（回波信标时隙）信息。 EBS信息表示在超帧的时隙中分配用于信标重传的EBS（回波信标时隙）。 信标转发器（220）重传EBS的信标信息。

    데이터 전송 장치 및 방법, 데이터 수신 장치 및 방법
    83.
    发明公开
    데이터 전송 장치 및 방법, 데이터 수신 장치 및 방법 失效
    用于发送数据的装置和方法，用于接收数据的装置和方法

    公开(公告)号：KR1020090001277A

    公开(公告)日：2009-01-08

    申请号：KR1020070065529

    申请日：2007-06-29

    Applicant: 한국전자통신연구원 ,  성균관대학교산학협력단

    Inventor： 황성현 ,  엄중선 ,  최형진 ,  윤태웅 ,  임세빈

    IPC: H04L27/00 ,  H04L27/26

    CPC classification number: H04L27/2628 ,  H04L27/2614 ,  H04L27/265 ,  H04L27/2675 ,  H04L27/2692

    Abstract: The data sink and method data transfer equipment and method, and data sink and method are provided to reduce the peak to average power ratio(Peak-to-Average Power Ratio, PAPR) and to reduces the complexity of data transfer equipment. The digital modulator(301) receives data consisting of a plurality of bits. The digital modulator outputs a plurality of digital modulation symbols by performing the digital modulation. The pilot insertion(303) receives a plurality of digital modulation symbols from the digital modulator. The pilot insertion outputs a plurality of pilot inserted symbols by inserting a plurality of pilots into a plurality of digital modulation symbols. The sub carrier assignment part(305) receives a plurality of pilot inserted symbols from the pilot insertion. The sub carrier assignment part outputs the sub carrier assignment signal by assigning a plurality of pilot inserted symbols to a plurality of subcarriers.

    Abstract translation: 提供了数据宿和方法数据传输设备和方法以及数据宿和方法，以降低峰均功率比（Peak-to-Average Power Ratio，PAPR），降低数据传输设备的复杂度。 数字调制器（301）接收由多个比特组成的数据。 数字调制器通过执行数字调制输出多个数字调制符号。 导频插入（303）从数字调制器接收多个数字调制符号。 导频插入通过将多个导频插入到多个数字调制符号中来输出多个导频插入符号。 副载波分配部（305）从导频插入接收多个导频插入符号。 子载波分配部分通过将多个导频插入符号分配给多个子载波来输出子载波分配信号。

    ＯＦＤＭＡ 시스템의 초기 레인징을 위한 신호를 생성하는방법 및 장치
    84.
    发明公开
    ＯＦＤＭＡ 시스템의 초기 레인징을 위한 신호를 생성하는방법 및 장치 有权
    在OFDMA系统中初始范围生成信号的方法和装置

    公开(公告)号：KR1020080094629A

    公开(公告)日：2008-10-23

    申请号：KR1020080036570

    申请日：2008-04-21

    Applicant: 한국전자통신연구원

    Inventor： 엄중선 ,  황성현 ,  김창주 ,  송명선

    IPC: H04J11/00 ,  H04L27/18

    CPC classification number: H04L27/2601 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2656 ,  H04L27/2602 ,  H04L27/18 ,  H04L27/2628

    Abstract: A method and an apparatus of generating a signal for an initial ranging in an OFDMA(Orthogonal Frequency Division Multiple Access) system are provided to simply generate plural symbols with continuous phases irrespective of the number of symbol for the initial ranging by using a single mathematical equation. A ranging code generator(308) generates a ranging code. A ranging channel generator(310) modulates the ranging code and generates L symbols by phase-rotating the modulated ranging codes according to a symbol index and a sub-carrier index. The ranging channel generator maps the symbols on a constellation to the sub-carrier according to an index of the sub-carrier. A converter converts the mapped symbols into a time domain and generates sample data of the ranging symbol. A guard interval insertion unit(304) copies a tail portion of the sample data corresponding to the size of the guard interval, and inserts the copied portion in front of the sample data as the guard interval, such that the initial ranging signal is formed.

    Abstract translation: 提供了一种在OFDMA（正交频分多址）系统中生成用于初始测距的信号的方法和装置，以简单地生成具有连续相位的多个符号，而不管初始测距的符号数量如何，通过使用单个数学方程 。 测距码发生器（308）生成测距码。 测距信道生成器（310）通过根据符号索引和子载波索引相位旋转调制的测距码来调制测距码并产生L个符号。 测距信道发生器根据子载波的索引将星座上的符号映射到子载波。 A转换器将映射符号转换为时域并生成测距符号的采样数据。 保护间隔插入单元（304）将对应于保护间隔的大小的样本数据的尾部复制，并将复制部分插入样本数据前面作为保护间隔，使得形成初始测距信号。

    적응형 채널 추정이 가능한 파일럿 패턴 생성 방법, 상기파일럿 패턴을 이용한 송수신 방법 및 그 장치
    85.
    发明公开
    적응형 채널 추정이 가능한 파일럿 패턴 생성 방법, 상기파일럿 패턴을 이용한 송수신 방법 및 그 장치 有权
    生成自适应通道估计的引导图案的方法，使用引导图案发送/接收的方法及其装置

    公开(公告)号：KR1020070104865A

    公开(公告)日：2007-10-29

    申请号：KR1020070040013

    申请日：2007-04-24

    Applicant: 한국전자통신연구원

    Inventor： 황성현 ,  김창주 ,  송명선 ,  엄중선

    IPC: H04L27/26

    CPC classification number: H04W72/0406 ,  H04L5/0007 ,  H04L5/0048

    Abstract: A method of generating a pilot pattern for adaptive channel estimation, a method of transmitting and receiving using the pilot pattern and an apparatus thereof are provided to minimize channel estimation performance degradation due to interpolation under severe channel environment as maintaining low pilot density. According to a method of generating a pilot pattern for adaptive channel estimation, the size of a slot where the pilot pattern is repeated in a time domain and a frequency domain is determined(S301). A random subcarrier in a first OFDMA(Orthogonal Frequency Division Multiple Access) symbol in the time domain slot is determined as a pilot insertion position(S303). Frequency-time distance from pilots of all prior OFDMA symbols in the time domain slot to each remaining sub carrier is calculated, as to each remaining sub carrier of the present OFDMA symbol after the first OFDMA symbol in the time domain slot(S304). Minimum distance in each frequency-time distance assembly of the remaining subcarriers is compared. A subcarrier where the frequency-time minimum distance has a maximum value is determined as pilot insertion position(S312).

    Abstract translation: 提供一种生成用于自适应信道估计的导频模式的方法，使用该导频模式的发送和接收方法及其装置，以使由于在严格信道环境下的内插而导致的信道估计性能劣化保持低导频密度。 根据生成用于自适应信道估计的导频模式的方法，确定导频模式在时域和频域中重复的时隙的大小（S301）。 在时域时隙中的第一OFDMA（正交频分多址）符号中的随机子载波被确定为导频插入位置（S303）。 对于时隙中的第一OFDMA符号之后的OFDMA符号的每个剩余子载波，计算从时隙中的所有先前的OFDMA符号的导频到每个剩余子载波的频率 - 时间（S304）。 比较剩余子载波的每个频率 - 时间距离组合中的最小距离。 将频率 - 时间最小距离具有最大值的副载波确定为导频插入位置（S312）。

    리차드슨 유형 재킷 ＬＤＰＣ 부호 생성장치 및 방법
    86.
    发明公开
    리차드슨 유형 재킷 ＬＤＰＣ 부호 생성장치 및 방법 无效
    RICHARDSON LIKE JACKET LDPC编码的生成方法和快速编码器

    公开(公告)号：KR1020070076538A

    公开(公告)日：2007-07-24

    申请号：KR1020070005448

    申请日：2007-01-17

    Applicant: 한국전자통신연구원

    Inventor： 송명선 ,  황성현 ,  고광진 ,  김창주 ,  전순익 ,  이문호 ,  이광재 ,  후지아

    IPC: H03M13/11

    CPC classification number: H03M13/1148 ,  H03M13/6502

    Abstract: An apparatus and a method for generating jacket LDPC(Low Density Parity Check) codes of a Richardson type are provided to constitute an encoder with simple hardware by reducing the complexity of calculating the LDPC codes. An apparatus for generating jacket LDPC codes of a Richardson type includes a jacket pattern generating unit(400), an encoding-rate/encoding-length control unit(410), a zero padding/canceling unit(430), a CPM(Circulant Permutation Matrix) inserting unit(420), and an H matrix generating unit(440). The jacket pattern generating unit(400) generates a jacket matrix based on a jacket pattern in which an inverse matrix of a square matrix is represented as the inverse of each element. The encoding-rate/encoding-length control unit(410) outputs a prime number, which determines the size of CPM based on the size of the jacket matrix generated in the jacket pattern generating unit(400), to satisfy a requested encoding rate. The zero padding/canceling unit(430) inserts zero into the jacket matrix generated in the jacket pattern matrix, and generates a non-square matrix. The CPM inserting unit(420) generates a first CPM of a unit matrix which only has diagonal factors based on the prime number outputted in the encoding-rate/encoding-length control unit(410), and generates all second CPMs by shifting the first CPM corresponding to each factor of the jacket matrix. The H matrix generating unit(440) generates an H matrix of a Richardson type based on the non-square jacket matrix and the second CPM.

    Abstract translation: 提供了一种用于产生理查森类型的封套LDPC（低密度奇偶校验）码的装置和方法，以通过降低计算LDPC码的复杂度来构成具有简单硬件的编码器。 一种用于产生理查森型护套LDPC码的装置，包括：外壳图案生成单元（400），编码率/编码长度控制单元（410），零填充/取消单元（430），CPM（循环排列 矩阵）插入单元（420）和H矩阵生成单元（440）。 护套图案生成单元（400）基于其中矩形矩阵的逆矩阵被表示为每个元素的倒数的封套图案来生成封套矩阵。 编码率/编码长度控制单元（410）输出素数，其基于在套衫图案生成单元（400）中生成的外套矩阵的大小来确定CPM的尺寸，以满足所请求的编码率。 零填充/取消单元（430）将零插入到在套管图案矩阵中生成的套管矩阵中，并且生成非正方形矩阵。 CPM插入单元（420）生成单位矩阵的第一CPM，该单位矩阵仅基于在编码率/编码长度控制单元（410）中输出的质数而具有对角因子，并且通过将第一CPM CPM对应于夹套矩阵的每个因子。 H矩阵生成单元（440）基于非正方形外壳矩阵和第二CPM生成理查森型的H矩阵。

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