公开(公告)号：US07640000B2

公开(公告)日：2009-12-29

申请号：US11604898

申请日：2006-11-28

申请人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

发明人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

IPC分类号： H04B1/10 ,  H03D1/04

CPC分类号： H04B1/0475

摘要： The present invention is related to a partially overlapped single-carrier crosstalk signal cancellation method and an apparatus using the same. For this purpose, the present invention provides a crosstalk canceller including a pre-processor for frequency down-shifting an input signal, a crosstalk signal cancellation module for canceling the crosstalk signal by dividing the input signal by an interpolation ratio, a post-processor for converting an output of the crosstalk signal cancellation modulation into a passband signal, and an error feedback processor for performing a decimation operation on a residual crosstalk signal and feeding backing the decimated residual crosstalk signal to the crosstalk signal cancellation module. In addition, the present invention provides a crosstalk signal cancellation method for performing interpolation and filtering operations by frequency down-shifting an input signal including a crosstalk signal to a baseband and decimating a residual crosstalk signal by frequency-shifting to an original signal frequency.

摘要翻译： 本发明涉及部分重叠的单载波串扰信号消除方法及其使用方法。 为此目的，本发明提供了一种串扰消除器，包括用于降频输入信号的预处理器，用于通过将输入信号除以插值比来消除串扰信号的串扰信号消除模块，后处理器 将串扰信号消除调制的输出转换为通带信号，以及误差反馈处理器，用于对残留串扰信号执行抽取操作，并将抽取的残留串扰信号馈送到串扰信号消除模块。 此外，本发明提供了一种串扰信号消除方法，用于通过将包括串扰信号的输入信号降频到基带并通过频移到原始信号频率来抽取残留串扰信号来执行插值和滤波操作。

公开(公告)号：US20070133723A1

公开(公告)日：2007-06-14

申请号：US11636711

申请日：2006-12-11

申请人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

发明人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

IPC分类号： H03D1/04 ,  H04B14/04

CPC分类号： H04B3/32

摘要： The present invention relates to a method and an apparatus for cancellation of crosstalk signals using multi-dimensional coordination and vectored transmission. A method of canceling crosstalk signals in a receiver includes a step of multi-dimensionally decomposing the received signals into a user domain and a time domain, a step of calculating a transposed matrix and a diagonal matrix of a unit matrix from the received signals, a step of decoding the received signals with respect to symbols taking the user domain using the transposed matrix and the diagonal matrix of the unit matrix, and a step of decoding the signal decoded in the user domain with respect to symbols taking the time domain so as to calculate the data vectors from which the crosstalk signals are cancelled. Further, a method of canceling crosstalk signals in a transmitter includes a step of multiplying the data vectors to be transmitted from a pre-distortion matrix so as to calculate transmission signals, a step of multi-dimensionally decomposing the transmission signals into a time domain and a user domain, a step of precoding the transmission signals in the time domain and precoding the transmission signals in the user domain, a step of multiplying the signals precoded in the time domain and the user domain by the pre-distortion matrix so as to calculate second transmission signals, and a step of multiplying the second transmission signals by the unit matrix and transmitting the result to the receiver. According to the present invention, near-end crosstalk (NEXT) and far-end crosstalk (FEXT) can be cancelled, computer work in a central system managing cable lines can be reduced, and cable capacity for data transmission can be increased.

摘要翻译： 本发明涉及使用多维协调和矢量传输来消除串扰信号的方法和装置。 消除接收机中的串扰信号的方法包括将接收到的信号多维分解为用户域和时域的步骤，从接收信号计算单位矩阵的转置矩阵和对角矩阵的步骤， 使用转置的矩阵和单位矩阵的对角矩阵相对于采用用户域的符号对接收到的信号进行解码的步骤，以及对于采用时域的符号在用户域中解码的信号进行解码的步骤，以便 计算消除串扰信号的数据向量。 此外，消除发送机中的串扰信号的方法包括：将从前失真矩阵发送的数据向量相乘以计算发送信号的步骤，将发送信号多维分解为时域， 用户域，在时域中对发送信号进行预编码并对用户域中的发送信号进行预编码的步骤，将在时域中预编码的信号与用户域乘以预失真矩阵的步骤，以计算 第二传输信号，以及将第二传输信号乘以单位矩阵并将结果发送给接收机的步骤。 根据本发明，可以消除近端串扰（NEXT）和远端串扰（FEXT），可以减少管理电缆线路的中央系统的计算机工作，并且可以提高用于数据传输的电缆容量。

公开(公告)号：US07769100B2

公开(公告)日：2010-08-03

申请号：US11636711

申请日：2006-12-11

申请人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

发明人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

IPC分类号： H04B15/00

CPC分类号： H04B3/32

摘要： In a method of canceling crosstalk signals, decoding or precoding through a diagonal channel analysis of the user domain and the time domain is performed, in addition to decoding or precoding in the user and time domains.

摘要翻译： 在消除串扰信号的方法中，除了用户和时域中的解码或预编码之外，还执行对用户域和时域的对角线信道分析的解码或预编码。

公开(公告)号：US20070133815A1

公开(公告)日：2007-06-14

申请号：US11604898

申请日：2006-11-28

申请人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

发明人： Min-Ho Cheong ,  Hyeong-Jun Park ,  Yong-Hwan Lee

IPC分类号： A61F11/06

CPC分类号： H04B1/0475

摘要： The present invention is related to a partially overlapped single-carrier crosstalk signal cancellation method and an apparatus using the same. For this purpose, the present invention provides a crosstalk canceller including a pre-processor for frequency down-shifting an input signal, a crosstalk signal cancellation module for canceling the crosstalk signal by dividing the input signal by an interpolation ratio, a post-processor for converting an output of the crosstalk signal cancellation modulation into a passband signal, and an error feedback processor for performing a decimation operation on a residual crosstalk signal and feeding backing the decimated residual crosstalk signal to the crosstalk signal cancellation module. In addition, the present invention provides a crosstalk signal cancellation method for performing interpolation and filtering operations by frequency down-shifting an input signal including a crosstalk signal to a baseband and decimating a residual crosstalk signal by frequency-shifting to an original signal frequency. According to the present invention, implementation complexity of the crosstalk signal canceller can be reduced and the crosstalk signal cancellation process can be preformed at a low speed by using the interpolation filter and the decimation filter, thereby achieving reduction of computational complexity.

摘要翻译： 本发明涉及部分重叠的单载波串扰信号消除方法及其使用方法。 为此目的，本发明提供了一种串扰消除器，包括用于降频输入信号的预处理器，用于通过将输入信号除以插值比来消除串扰信号的串扰信号消除模块，后处理器 将串扰信号消除调制的输出转换为通带信号，以及误差反馈处理器，用于对残留串扰信号执行抽取操作，并将抽取的残留串扰信号馈送到串扰信号消除模块。 此外，本发明提供了一种串扰信号消除方法，用于通过将包括串扰信号的输入信号降频到基带并通过频移到原始信号频率来抽取残留串扰信号来执行插值和滤波操作。 根据本发明，可以减少串扰信号消除器的实现复杂度，并且可以通过使用内插滤波器和抽取滤波器以低速执行串扰信号消除处理，从而实现计算复杂度的降低。

公开(公告)号：US20130251001A1

公开(公告)日：2013-09-26

申请号：US13990745

申请日：2011-12-01

申请人： Yong-Hwan Lee ,  Seung-Hwan Lee ,  Jin-Seok Han

发明人： Yong-Hwan Lee ,  Seung-Hwan Lee ,  Jin-Seok Han

IPC分类号： H04B1/715

CPC分类号： H04B1/715 ,  H04B2001/7154 ,  H04W28/18

摘要： An interference signal avoiding device of a frequency hopping spread system and a method thereof are disclosed. A method of transmitting/receiving an interference signal avoiding signal according to the present invention includes: determining a frequency hopping channel set and a parameter of an interference signal detector in consideration of characteristics of an interference signal; detecting whether there is an interference signal with respect to frequency hopping candidate channels that are to be used for the next frequency hopping by using the determined interference signal detector; transmitting a signal through a channel that is determined by the interference signal detector that there is no interference signal among the frequency hopping candidate channels; and searching a channel through which the signal is transmitted from the frequency hopping candidate channels in order to receive the transmitted signal.

摘要翻译： 公开了一种跳频扩散系统的干扰信号避免装置及其方法。 根据本发明的发送/接收干扰信号避免信号的方法包括：考虑干扰信号的特性，确定跳频信道组和干扰信号检测器的参数; 通过使用所确定的干扰信号检测器检测是否存在关于要用于下一次跳频的跳频候选信道的干扰信号; 通过由所述干扰信号检测器确定的在所述跳频候选信道中不存在干扰信号的信道发送信号; 并且从跳频候选信道搜索发送信号的信道，以便接收所发送的信号。

公开(公告)号：US20120321017A1

公开(公告)日：2012-12-20

申请号：US13520794

申请日：2011-01-07

申请人： Yong-Hwan Lee ,  O-Jin Kwon ,  Keon-Wook Lee

发明人： Yong-Hwan Lee ,  O-Jin Kwon ,  Keon-Wook Lee

IPC分类号： H04B15/00

CPC分类号： H04B7/0639 ,  H04B7/0641 ,  H04B7/0663 ,  H04L5/0023 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/03949

摘要： The present invention relates to a transmission beamforming method and apparatus in an orthogonal frequency division multiplexing (OFDM)-based MIMO wireless system. In particular, the present invention relates to a transmission beamforming method in an OFDM-based MIMO wireless system and an apparatus therefor, wherein the transmission beamforming method comprises: estimating a channel from a received pilot signal and obtaining time for the estimating channel and 2D channel correlation information of a frequency band; obtaining estimated channel information based on the channel correlation information; obtaining differential information that represents a difference between the current channel and the estimated channel and quantizing the differential information; and generating a transmission beam weight by using a predefined code book from the quantized differential information. The present invention may also provide a method and apparatus for reducing the channel quantization error and feedback load by employing the OFDM-based MIMO in a wireless communication system using a transmission beamforming scheme, wherein a receiver estimates current channel information by using time and 2D channel correlation information of a frequency based on the previous channel information, compares the estimated current channel information with an actual channel and then feeds back the differential channel information, i.e., the difference between the estimated channel and the actual channel, to a transmitter.

摘要翻译： 本发明涉及一种基于正交频分复用（OFDM）的MIMO无线系统中的发射波束形成方法和装置。 具体地说，本发明涉及一种基于OFDM的MIMO无线系统中的发送波束形成方法及其装置，其中，所述发送波束形成方法包括：从接收的导频信号估计信道，并获得估计信道和2D信道的时间 频带的相关信息; 基于信道相关信息获取估计信道信息; 获取表示当前信道与估计信道之间的差分的差分信息并量化差分信息; 以及通过使用来自所述量化的差分信息的预定义码本来生成传输束权重。 本发明还可以提供一种通过在使用传输波束成形方案的无线通信系统中采用基于OFDM的MIMO来减少信道量化误差和反馈负载的方法和装置，其中接收机通过使用时间和2D信道来估计当前信道信息 基于先前信道信息的频率的相关信息，将估计的当前信道信息与实际信道进行比较，然后将差分信道信息（即估计信道与实际信道之间的差）反馈给发射机。

公开(公告)号：US20050201328A1

公开(公告)日：2005-09-15

申请号：US11035848

申请日：2005-01-14

申请人： June Moon ,  Yong-Hwan Lee ,  Hyun-Seok Yu

发明人： June Moon ,  Yong-Hwan Lee ,  Hyun-Seok Yu

IPC分类号： H04J11/00 ,  H04B1/707 ,  H04B1/76 ,  H04B7/26 ,  H04J13/16 ,  H04J13/18 ,  H04L25/02 ,  H04L27/26 ,  H04W56/00 ,  H04W76/02 ,  H04W92/10 ,  H04Q7/00

CPC分类号： H04L27/2613 ,  H04L25/0226

摘要： A channel estimating method in a wireless communication system in which a plurality of MSs communicate with a BS on multiple carriers. Each of the MSs transmits to the BS a pilot signal designed to have simultaneous time-domain and frequency-domain responses. The BS is synchronized to the MS using the received pilot signal and performs channel estimation for the MS.

摘要翻译： 无线通信系统中的信道估计方法，其中多个MS与多个载波上的BS进行通信。 每个MS向BS发送被设计为具有同时的时域和频域响应的导频信号。 BS使用接收到的导频信号与MS同步，并为MS执行信道估计。

公开(公告)号：US5514643A

公开(公告)日：1996-05-07

申请号：US287917

申请日：1994-08-09

申请人： Yo S. Rew ,  Jinho Cho ,  Choon S. Ra ,  Sei-chang Ahn ,  Sung K. Kim ,  Yong-Hwan Lee ,  Bon Y. Jung ,  Woo B. Choi ,  Young H. Rhee ,  Man Y. Yoon ,  Sung W. Chun

发明人： Yo S. Rew ,  Jinho Cho ,  Choon S. Ra ,  Sei-chang Ahn ,  Sung K. Kim ,  Yong-Hwan Lee ,  Bon Y. Jung ,  Woo B. Choi ,  Young H. Rhee ,  Man Y. Yoon ,  Sung W. Chun

IPC分类号： C07D417/12 ,  A01N43/78 ,  A01N47/18 ,  C07D277/20 ,  C07D277/56 ,  C07D277/40 ,  C07D277/42 ,  C07D277/44

CPC分类号： C07D417/12 ,  A01N43/78 ,  A01N47/18 ,  C07D277/56

摘要： The present invention relates to a novel 2-aminothiazolecarboxamide derivative represented by the following general formula (I): ##STR1## in which R.sup.1 -R.sup.5 are defined herein, which is a fungicidal agent useful for controlling phytopathogenic organisms. In addition, the present invention also relates to a process for preparing the novel 2-aminothiazolecarboxamide derivative of formula (I) and use of the compound of formula (I) as an agent for controlling phytopathogenic organisms.

摘要翻译： 本发明涉及由以下通式（I）表示的新颖的2-氨基噻唑甲酰胺衍生物：其中R1-R5定义在本文中，其是可用于防治植物病原生物的杀真菌剂。 此外，本发明还涉及制备式（I）的新型2-氨基噻唑甲酰胺衍生物的方法和式（I）化合物作为防治植物病原生物的试剂的用途。

公开(公告)号：US20150036545A1

公开(公告)日：2015-02-05

申请号：US14001033

申请日：2012-01-19

申请人： Yong-Hwan Lee ,  Hyung Sin Kim ,  Seung Hwan Lee

发明人： Yong-Hwan Lee ,  Hyung Sin Kim ,  Seung Hwan Lee

IPC分类号： H04L29/12 ,  H04L12/753 ,  H04W40/24

CPC分类号： H04L61/2038 ,  H04L45/02 ,  H04L45/48 ,  H04W40/246 ,  H04W84/18 ,  H04W84/20

摘要： Disclosed is a self-construction system of a wireless sensor network, and a method for self-construction of a wireless sensor network using the same. Also disclosed is a method for self-construction of a cluster tree structure-based wireless sensor network (WSN). The present invention can connect devices distributed densely in a wide area to a network while maintaining the advantages of a conventional tree-structured network, such as the reduction of time required for network construction, traffic by the exchange of control command messages, and a load for a routing path search, and thus can provide a WSN having an improved self-construction performance.

摘要翻译： 公开了一种无线传感器网络的自建系统，以及使用该无线传感器网络的无线传感器网络的自建构方法。 还公开了一种用于基于簇树结构的无线传感器网络（WSN）的自建构的方法。 本发明可以将在广域上密集分布的设备连接到网络，同时保持常规树状结构网络的优点，例如网络构建所需的时间减少，交换控制命令消息的业务量以及负载 用于路由路径搜索，从而可以提供具有改进的自建构性能的WSN。

公开(公告)号：US08467467B2

公开(公告)日：2013-06-18

申请号：US12109611

申请日：2008-04-25

申请人： Yong-Hwan Lee ,  JaeYun Ko

发明人： Yong-Hwan Lee ,  JaeYun Ko

IPC分类号： H04B7/02

CPC分类号： H04B7/0443 ,  H04B7/0465

摘要： An apparatus and method for partial adaptive transmission in a Multiple-Input Multiple-Output (MIMO) system are provided. The method includes estimating a correlation matrix between Transmit (Tx) antennas and an average Signal to Noise Ratio (SNR) and generating a long-term precoding matrix composed of a predetermined number of dominant eigen dimensions of the correlation matrix by using the estimated correlation matrix and average SNR. The apparatus and method provide a new adaptive MIMO transmission method capable of reducing the feedback information overhead and maximizing performance.

摘要翻译： 提供了一种用于多输入多输出（MIMO）系统中的部分自适应传输的装置和方法。 该方法包括估计发射（Tx）天线与平均信噪比（SNR）之间的相关矩阵，并且通过使用估计的相关矩阵来生成由相关矩阵的预定数量的主要特征维度组成的长期预编码矩阵 和平均SNR。 该装置和方法提供了一种能够减少反馈信息开销和最大化性能的新的自适应MIMO传输方法。