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公开(公告)号：KR1020100064319A
公开(公告)日：2010-06-14
申请号：KR1020090082083
申请日：2009-09-01
Abstract: PURPOSE: Even if MS(Mobile Station) receives a map IE(Information Element) which nibble is not arranged, a map analyzing device and a map analyzing method performs map analyzing method in a nibble unit, thereby securing the consumption time of a physical layer by a reduce of map analyzing time. CONSTITUTION: A delay unit(130) outputs lower three bits among four bits forming one nibble as delay bit by a delay. A combination unit(140) generates a plurality of nibble data comprising four bits by combination of delay bit of a current bit and the delay unit of a memory unit(120). A multiplexing unit(150) outputs one from a plurality of nibble data as nibble array map data. A map analyzing unit(160) analyzes the nibble array map data in a nibble unit.
Abstract translation: 目的：即使MS（Mobile Station）接收到没有配置半字节的映射IE（Information Element），地图分析装置和地图分析方法也进行半字节单位的地图分析方法，从而确保物理层的消耗时间 通过减少地图分析时间。 构成：延迟单元（130）在四位中输出低位三位，形成一个作为延迟位的一个半字节延迟。 组合单元（140）通过组合当前位的延迟位和存储器单元（120）的延迟单元来生成包括四位的多个半字节数据。 复用单元（150）从多个半字节数据中输出一个作为半字节阵列映射数据。 地图分析单元（160）以半字节单元分析半字节阵列地图数据。
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公开(公告)号：KR100908244B1
公开(公告)日：2009-07-20
申请号：KR1020070085631
申请日：2007-08-24
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
CPC classification number: H04B7/155 , H04B7/2606 , H04W36/00 , H04W36/165 , H04W84/047 , H04W88/02
Abstract: 핸드오버 제어 기능을 포함한 중계기를 이용한 핸드오버 방법 및 멀티홉 릴레이 시스템이 개시된다. 중계기에 연결된 이동국들의 핸드오버가 필요한 경우, 중계기가 기지국과 핸드오버 요청 메시지/핸드오버 응답 메시지를 교환하여 이동국들의 핸드오버를 협상한 후, 중계기에 의해 이동국들의 핸드오버가 수행되면 중계기는 이동국들의 핸드오버 수행 결과를 취합하여 기지국에 전송하고, 기지국은 핸드오버된 이동국들의 정보를 갱신한다.
Abstract translation: 公开了使用包括切换控制功能的中继器的切换方法和多跳中继系统。 如果需要连接到中继的移动站的切换时，当所述中继器是在基站和一个切换请求消息/切换交换响应消息，然后协商移动站的切换时，由中继所述移动站的越区切换执行移动站的中继 收集切换的结果并将其发送到基站，并且基站更新切换移动台的信息。
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公开(公告)号：KR1020080065224A
公开(公告)日：2008-07-11
申请号：KR1020070085633
申请日：2007-08-24
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
CPC classification number: H04W60/06 , H04B7/155 , H04W36/08 , H04W36/16 , H04W76/30 , H04W84/047 , H04W88/04 , H04W36/38
Abstract: A service closing method of a relay station and a multi-hop relay system are provided to perform the hand-over of mobile stations without performing the network initial connection process of the mobile stations connected with a relay station. A relay station transmits the service closing request message to a base station(S355). The relay station receives the hand-over completion message for expressing the completion of the hand-over of all mobile stations from the base station(S370). Thereafter, the relay station performs the registration cancellation procedure(S375). The service closing request message includes the hand-over request of all mobile stations connected with the relay station. The relay station also receives the service closing response message for expressing the refusal of the service closing from the base station. Thereafter, the relay station retransmits the service closing request message to the base station after the lapse of the constant time.
Abstract translation: 提供中继站和多跳中继系统的业务关闭方法来执行移动台的切换，而无需执行与中继站连接的移动台的网络初始连接处理。 中继站向基站发送业务关闭请求消息（S355）。 中继站接收用于表示从基站完成所有移动台的切换的切换完成消息（S370）。 此后，中继站执行注册取消过程（S375）。 服务关闭请求消息包括与中继站连接的所有移动站的切换请求。 中继站还接收用于表示从基站拒绝业务关闭的业务关闭响应消息。 此后，中继站在经过恒定时间之后向基站重发业务关闭请求消息。
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公开(公告)号：KR100840618B1
公开(公告)日：2008-06-24
申请号：KR1020070039227
申请日：2007-04-23
CPC classification number: H04B7/0413 , H04L1/0009 , H04L1/0025 , H04L1/0625 , H04L1/0662 , H04L5/0023 , H04L5/0044
Abstract: A close loop transmission method and an apparatus thereof are provided to perform close loop QOSTBC(Quasi-Orthogonal Space Time Block Coding) in an OFDMA(Orthogonal Frequency Division Multiple Access) system, thereby reducing complexity of a receiving party and improving bit error rate performance. A close loop transmission method comprises the following steps of: selecting a code matrix corresponding to a code index transmitted from an uplink sub frame(S401); performing space time coding of modulated symbols by using the selected code matrix so as to generate plural data symbols(S404,S405); and transmitting the generated data symbols via sub carrier mapping, inverse fast fourier transform, CP(Cyclic Prefix) insertion and D/A(Digital signal to Analog signal) conversion(S406).
Abstract translation: 提供了一种闭环传输方法及其装置，用于在OFDMA（正交频分多址）系统中执行闭环QOSTBC（准正交空时数块编码），从而降低了接收方的复杂度，并提高了误码率性能 。 闭环传输方法包括以下步骤：选择与从上行链路子帧发送的码索引对应的码矩阵（S401）; 通过使用所选择的码矩阵进行调制符号的空时编码，以产生多个数据符号（S404，S405）; 并通过副载波映射，反向快速傅里叶变换，CP（循环前缀）插入和D / A（数字信号到模拟信号）转换来发送生成的数据符号（S406）。
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公开(公告)号：KR1020080051537A
公开(公告)日：2008-06-11
申请号：KR1020060122860
申请日：2006-12-06
CPC classification number: H04L9/0631 , H04L2209/12
Abstract: An inverse MixColumn block device and a multiplication method using the same are provided to be applicable to a portable device with a small size and low power easily while improving performance for decoding an AES(Advanced Encryption Standard) block. A storing part(210) stores bit-unit input data by a byte unit and outputs a stored input byte. A first multiplication block(220) performs multiplication for {01}, {02}, {04}, and {08}, which are a hexadecimal value of the input byte, and outputs a result. A second multiplication block(230) performs the multiplication for {09}, {0b}, {0d}, and {0e} by using the result of the first multiplication block and outputs the result. An XOR operator(240) outputs an output byte for the input byte by performing an XOR operation for the result of the second multiplication block. The first multiplication block includes a {01} multiplication block(222) outputting the input byte received from the storing part, a {02} multiplication block(224) outputting the result by using the result of the {01} multiplication block, a {04} multiplication block(226) outputting the result by using the result of the {02} multiplication block, and a {08} multiplication block(228) outputting the result by using the result of the {04} multiplication block.
Abstract translation: 提供了一种反向MixColumn块装置和使用它的乘法方法，可以方便地应用于具有小尺寸和低功率的便携式装置，同时提高了对AES（高级加密标准）块的解码性能。 存储部分（210）以字节为单位存储位单位输入数据并输出存储的输入字节。 第一乘法块（220）对于输入字节的十六进制值的{01}，{02}，{04}和{08}进行乘法运算，并输出结果。 第二乘法块（230）通过使用第一乘法块的结果执行{09}，{0b}，{0d}和{0e}的乘法，并输出结果。 XOR运算符（240）通过对第二乘法运算结果执行异或运算来输出输入字节的输出字节。 第一乘法块包括输出从存储部分接收的输入字节的{01}乘法块（222），使用{01}乘法块的结果输出结果的{02}乘法块（224），{ 04}乘法块（226）通过使用{02}乘法块的结果输出结果，以及{08}乘法块（228），通过使用{04}乘法块的结果输出结果。
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Patent Agency Ranking
公开(公告)号：KR100819052B1
公开(公告)日：2008-04-02
申请号：KR1020060125034
申请日：2006-12-08
Applicant: 한국전자통신연구원
IPC: H04L27/26
CPC classification number: H04L27/2626 , H04L27/2656 , H04W52/226 , H04W52/52
Abstract: An apparatus and a method for calculating a transmission power controlling value of a terminal in an OFDM system are provided to match a suitable timing by accumulating a power controlling value of a closed loop according to a frame synchronizing signal. In an apparatus for calculating a power controlling value of a closed loop for calculating a transmission power controlling value of a terminal in an OFDM system, an accumulation point calculating unit(210) calculates a point to accumulate a power controlling value of the closed loop transmitted from a base station to the terminal based on a frame synchronizing signal of the terminal. An accumulated value storing unit(220) accumulates the power controlling value of the closed loop according to the calculated point as a reference point and stores the accumulated value. An output value determining unit(230) outputs the accumulated value as a power controlling value of the closed loop when an overflow is not generated, and outputs a predetermined maximum value.
Abstract translation: 提供了一种用于计算OFDM系统中的终端的发送功率控制值的装置和方法，以通过根据帧同步信号累加闭环的功率控制值来匹配适当的定时。 在用于计算用于计算OFDM系统中的终端的发送功率控制值的闭环的功率控制值的装置中，累加点计算单元（210）计算积累发送的闭环的功率控制值的点 基于终端的帧同步信号从基站到终端。 累积值存储单元（220）根据计算出的点作为参考点累积闭环的功率控制值，并存储累积值。 当不产生溢出时，输出值确定单元（230）输出累加值作为闭环的功率控制值，并输出预定的最大值。
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公开(公告)号：KR1020070060459A
公开(公告)日：2007-06-13
申请号：KR1020050119883
申请日：2005-12-08
Applicant: 한국전자통신연구원 , 삼성전자주식회사 , 에스케이텔레콤 주식회사 , 에스케이브로드밴드주식회사 , 주식회사 케이티
Abstract: An apparatus for monitoring base station signals in a smart antenna system having multiple antennas is provided to efficiently monitor the transmission/reception states of a base station by sharing an RF(Radio Frequency) calibration part and embedding a signal monitoring part in a digital IF(Intermediate Frequency) processing board. An apparatus for monitoring base station signals in a smart antenna system having multiple antennas comprises a transceiver part(300), an RF calibration part(350), and a signal monitoring part(360). The transceiver part(300) transmits a plurality of Tx signals by using the multiple antennas, and processes a plurality of Rx signals received to the multiple antennas. The RF calibration part(350) executes calibration for the Tx signals to be transmitted through the multiple antennas, and performs signal processing to monitor a target Tx signal among the Tx signals. The signal monitoring part(360) controls the transceiver part(300) or the RF calibration part(350) to acquire a target Rx signal among a plurality of Rx signals or the target Tx signal and analyzes the target Rx signal or the target Tx signal.
Abstract translation: 提供一种用于监视具有多个天线的智能天线系统中的基站信号的装置，以通过共享RF（射频）校准部分并将信号监视部分嵌入数字IF（以上）中来有效地监视基站的发送/接收状态 中频）处理板。 一种用于在具有多个天线的智能天线系统中监测基站信号的装置包括收发器部分（300），RF校准部分（350）和信号监测部分（360）。 收发器部分（300）通过使用多个天线发送多个Tx信号，并处理接收到多个天线的多个Rx信号。 RF校准部（350）对通过多个天线发送的Tx信号进行校准，并进行Tx信号中的目标Tx信号的信号处理。 信号监视部分（360）控制收发器部分（300）或RF校准部分（350）以获取多个Rx信号或目标Tx信号中的目标Rx信号，并分析目标Rx信号或目标Tx信号 。
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公开(公告)号：KR1020050060635A
公开(公告)日：2005-06-22
申请号：KR1020030092317
申请日：2003-12-17
Applicant: 한국전자통신연구원 , 삼성전자주식회사 , 주식회사 케이티 , 에스케이브로드밴드주식회사 , 주식회사 케이티프리텔 , 에스케이텔레콤 주식회사
IPC: H04J11/00
CPC classification number: H03G3/3089 , H04L25/061 , H04L27/2647
Abstract: 본 발명은 직교 주파수 분할 다중(OFDM) 시스템의 자동 이득 조절 장치 및 그 방법에 관한 것이다.
본 발명에서는, 가변 이득 앰프가 입력 신호에 대한 이득 조절을 수행하면, 에너지 계산기는 입력 신호의 에너지를 계산한다. 이후, 트렁케이션부는 계산한 에너지를 누적 후 평균을 취하여 입력 신호의 디씨 오프셋(DC offset)을 산출하며, 감산부는 트렁케이션부의 출력값에 사전에 설정한 기준값을 감하여 출력시킨다. 그러면, RC 필터는 감산부의 출력값을 자동 이득 조절을 위해 사용되도록 가변 이득 앰프로 피드백한다. 여기서, 사전에 설정한 기준값이란 직교 주파수 분할 다중 시스템의 비트 에러율을 최소화하는 신호대 잡음비를 토대로 산출한 참조 전력으로서, 이때 신호대 잡음비는, 4σ이다.
이를 통하여, 직교 주파수 분할 다중(OFDM) 시스템의 성능 향상을 이룬다.-
公开(公告)号：KR1020040044590A
公开(公告)日：2004-05-31
申请号：KR1020020072642
申请日：2002-11-21
Applicant: 한국전자통신연구원
IPC: H03M13/11
CPC classification number: H03M13/1177 , H03M13/116 , H03M13/1182
Abstract: PURPOSE: An encoder by using a low density parity check code(LDPC) and a method of encoding by using the same are provided to create the parity check matrix having a high-girth by using a regular encoder at a high speed. CONSTITUTION: An encoder by using a low density parity check code(LDPC) includes a parity check matrix creator and a codeword creator. The codeword creator is provided with an AB-divider, a pivoting part, a bit inversion part, an LU divider and codeword creator. The AB-divider divides the H-matrix into an A-matrix and a B-matrix. The pivoting part performs the pivoting for the H-matrix. The bit inversion part performs the bit inversion for the pivoted matrix. The LU-divider divides the A-matrix into an L-matrix and an U-matrix. And, the codeword creator generates the codeword by logically operating the A, B, L and U matrices.
Abstract translation: 目的：提供通过使用低密度奇偶校验码（LDPC）的编码器和使用该编码器的编码方法，以通过高速使用常规编码器来创建具有高周长的奇偶校验矩阵。 构成：通过使用低密度奇偶校验码（LDPC）的编码器包括奇偶校验矩阵创建器和码字创建器。 码字创建器设置有AB分频器，枢转部分，位反转部分，LU分频器和代码字创建器。 AB分频器将H矩阵分成A矩阵和B矩阵。 枢转部分执行H矩阵的枢转。 位反转部分执行枢转矩阵的位反转。 LU分频器将A矩阵分成L矩阵和U矩阵。 而且，码字创建者通过逻辑地操作A，B，L和U矩阵来生成码字。
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公开(公告)号：KR101762935B1
公开(公告)日：2017-07-31
申请号：KR1020110135740
申请日：2011-12-15
Applicant: 한국전자통신연구원
CPC classification number: H04B7/15528 , H04W56/005 , H04W56/0085
Abstract: 무선통신시스템에서초기동기획득방법및 장치가제공된다. 중계국은초기동기획득여부를결정하고, 초기동기를획득하지않은경우, 기지국으로부터수신한프리앰블(preamble) 및릴레이앰블(relay-amble, R-amble)을기반으로검출된자기상관(auto correlation) 신호의피크치를이용하여프레임의시작위치를결정하고, 초기동기를획득한경우, 상기기지국으로부터수신한상기릴레이앰블을기반으로검출된자기상관신호의피크치를이용하여프레임의시작위치를결정한다.
Abstract translation: 提供了一种无线通信系统中的初始同步捕获方法和装置。 如果中继站确定初始同步捕获，并没有获得初始同步时，自相关由前导码（前导码），和基于来自所述基站的接收的中继导码（中继导码，R-同步码）（自相关）信号检测 确定使用所述峰值和hangyeongwoo获得初始同步帧的起点，它决定使用基于所述接收到的hansanggi中继同步码从基站的自相关检测信号的峰值的帧的开始位置。
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