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    Adaptive interference suppression receiving apparatus for space-time block coded direct sequence/code division multiple access communication system
    1.
    发明授权
    Adaptive interference suppression receiving apparatus for space-time block coded direct sequence/code division multiple access communication system 有权
    用于空时块编码的直接序列/码分多址通信系统的自适应干扰抑制接收装置

    公开(公告)号：US07136410B2

    公开(公告)日：2006-11-14

    申请号：US10331946

    申请日：2002-12-31

    申请人： In-Kyeong Choi ,  Young-Ho Jung ,  Seong-Rag Kim ,  Seung-Chul Hong ,  Yong-Hoon Lee

    发明人： In-Kyeong Choi ,  Young-Ho Jung ,  Seong-Rag Kim ,  Seung-Chul Hong ,  Yong-Hoon Lee

    IPC分类号： H04B1/707 ,  H03H7/40

    CPC分类号： H04B1/71055 ,  H04B1/7115 ,  H04B7/04 ,  H04B7/0854 ,  H04L2025/03605

    摘要： An adaptive interference suppression receiver for a DS/CDMA system includes: input signal generators outputting a part of received signals of receiver antennas that has a coding block's transfer code; adaptive filter blocks filtering a complex signal output from the input signal generators with a tap weight updated based on a constraint MMSE criterion and estimating phase and amplitude components of a specific user channel using the filtering output signal to generate a channel-estimated signal; a signal restorer combining the channel-estimated signal and the filtering output signal and restoring an original signal; a signal selector for selecting known training data signal or the restored signal; and error generators comparing the channel-estimated signal and the filtering output signal and calculating an error between the two signals.

    摘要翻译： 用于DS / CDMA系统的自适应干扰抑制接收机包括：输入信号发生器，其输出具有编码块传输码的接收机天线的一部分接收信号; 自适应滤波器块利用基于约束MMSE标准更新的抽头权重来过滤来自输入信号发生器的复合信号，并且使用滤波输出信号估计特定用户信道的相位和幅度分量以产生信道估计信号; 组合信道估计信号和滤波输出信号并恢复原始信号的信号恢复器; 用于选择已知训练数据信号或恢复信号的信号选择器; 和误差发生器比较信道估计信号和滤波输出信号，并计算两个信号之间的误差。

    Smart antenna system and method thereof for forming uplink eigenbeam of ofdm/tdd
    2.
    发明申请
    Smart antenna system and method thereof for forming uplink eigenbeam of ofdm/tdd 有权
    智能天线系统及其形成为dm / tdd的上行本征光束的方法

    公开(公告)号：US20090067513A1

    公开(公告)日：2009-03-12

    申请号：US11579722

    申请日：2004-11-10

    申请人： Seong-Rag Kim ,  In-Kyeong Choi ,  Dong-Seung Kwon ,  Seung-Ku Hwang

    发明人： Seong-Rag Kim ,  In-Kyeong Choi ,  Dong-Seung Kwon ,  Seung-Ku Hwang

    IPC分类号： H04L27/28 ,  H04J11/00

    CPC分类号： H04B7/0413 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/086 ,  H04L5/023 ,  H04L5/1484 ,  H04L25/0228 ,  H04L25/0248 ,  H04L27/2647

    摘要： A mobile station transmitting and receiving method and a corresponding mobile station transmitter and receiver of a smart antenna system for forming uplink eigenbeams of the OFDM/TDD (orthogonal frequency division multiplex/time division duplex), wherein OFDM symbols are received from a base station through a downlink via multiple antennas (250) and an FFT (fast Fourier transform) is performed on the received OFDM symbols by the FFT units (270). By means of a channel estimator (290) the channels are estimated and a beam weight generator (310) generates respective beam weights from the channels of the respective pilot tones of the respective subcarriers according to the channel estimation result. A beam weight multiplier (230) forms the uplink beam by multiplying the respective beam weights with the output of the signal repeater (220) and IFFT units (240) generate respective OFDM symbols which are transmitted via multiple antennas (250) through an uplink.

    摘要翻译： 一种用于形成OFDM / TDD（正交频分复用/时分双工）的上行固有光束的智能天线系统的移动台发射和接收方法和相应的移动台发射机和接收机，其中从基站通过 通过FFT单元（270）对所接收的OFDM符号执行经由多个天线（250）和FFT（快速傅里叶变换）的下行链路。 通过信道估计器（290），估计信道，并且波束权重发生器（310）根据信道估计结果从相应子载波的相应导频音调的信道生成相应的波束权重。 波束权重乘法器（230）通过将各个波束权重与信号中继器（220）的输出相乘来形成上行链路波束，并且IFFT单元（240）生成经由多个天线（250）经由上行链路发送的各个OFDM符号。

    MIMO-OFDM system using eigenbeamforming method
    4.
    发明授权
    MIMO-OFDM system using eigenbeamforming method 有权
    使用特征波束成形方法的MIMO-OFDM系统

    公开(公告)号：US07872963B2

    公开(公告)日：2011-01-18

    申请号：US10584641

    申请日：2004-11-25

    申请人： In-Kyeong Choi ,  Seong-Rag Kim ,  Dong-Seung Kwon ,  Jin-Ho Choi

    发明人： In-Kyeong Choi ,  Seong-Rag Kim ,  Dong-Seung Kwon ,  Jin-Ho Choi

    IPC分类号： H04J11/00

    CPC分类号： H04L27/2626 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/065 ,  H04B7/066 ,  H04L1/06 ,  H04L1/0693 ,  H04L25/03343 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03426

    摘要： Disclosed is a MIMO-OFDM system, wherein the transmitter comprises a serial/parallel converter for converting continuously inputted symbols of the number of subcarriers to K parallel signals; a signal reproducer for reproducing K parallel signals by the number of transmit antennas L an eigenmode generator for generating eigenbeam of the reproduced signals outputted from the signal reproducer at each subcarrier, on the basis of Nf eigenbeam forming vectors which are fed back long-term and information of a best eigenbeam forming vector at each subcarrier which is fed back short-term, through the feedback device; and a plurality of inverse Fourier converters for receiving the signals outputted from the eigenmode generator and generating an OFDM symbol.

    摘要翻译： 公开了一种MIMO-OFDM系统，其中发射机包括串行/并行转换器，用于将连续输入的子载波数量的符号转换为K个并行信号; 信号再现器，用于根据发射天线L的数量再现K个并行信号，该天线本体模型发生器用于在每个子载波上从信号再现器输出的再生信号的本征波束，基于长期反馈的Nf本征波束形成向量， 通过反馈装置在短时间反馈的每个子载波处的最佳特征波束形成矢量的信息; 以及多个逆傅里叶变换器，用于接收从本征模式发生器输出的信号并产生OFDM符号。

    DECODING METHOD FOR SPACE-TIME ENCODING TRANSMISSION SCHEME IN WITH MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM AND RECEIVING APPARATUS FOR USING THE METHOD
    5.
    发明申请
    DECODING METHOD FOR SPACE-TIME ENCODING TRANSMISSION SCHEME IN WITH MULTIPLE INPUT MULTIPLE OUTPUT SYSTEM AND RECEIVING APPARATUS FOR USING THE METHOD 有权
    多输入多输出系统空间编码传输方案的解码方法及使用方法的接收装置

    公开(公告)号：US20100215085A1

    公开(公告)日：2010-08-26

    申请号：US11721110

    申请日：2005-12-09

    申请人： Seung-Joon Lee ,  Dong-Seung Kwon ,  Seong-Rag Kim ,  In-Kyeong Choi

    发明人： Seung-Joon Lee ,  Dong-Seung Kwon ,  Seong-Rag Kim ,  In-Kyeong Choi

    IPC分类号： H04B1/38 ,  H04L27/00

    CPC分类号： H04L25/0208 ,  H04L1/0631 ,  H04L1/0668

    摘要： A receiver according to an exemplary embodiment of the present invention receives a transmitted signal, converts the signal to a predetermined symbol, and estimates channel information including a channel gain of a channel of the transmitted signal. In addition, the receiver generates an intermediate processing value for decoding the signal based on the estimated channel information and the symbol, and normalizes the intermediate processing value to the channel gain to generate a reference value. The generated reference value is used for a soft-decision value for decoding the signal. In addition, when the signal is decoded by using a hard-decision value, a constellation point value that is closest to the reference values is generated and set as the hard-decision value.

    摘要翻译： 根据本发明的示例性实施例的接收机接收发送信号，将该信号转换成预定符号，并且估计包括发送信号的信道的信道增益的信道信息。 此外，接收器基于估计的信道信息和符号生成用于对信号进行解码的中间处理值，并且将中间处理值归一化为信道增益以生成参考值。 生成的参考值用于解码信号的软判决值。 此外，当通过使用硬判决值来解码信号时，生成最接近参考值的星座点值并将其设置为硬判定值。

    Interference canceling device and method in mobile communication system
    6.
    发明授权
    Interference canceling device and method in mobile communication system 失效
    移动通信系统中的干扰消除装置和方法

    公开(公告)号：US07263118B2

    公开(公告)日：2007-08-28

    申请号：US10331783

    申请日：2002-12-31

    申请人： In-Kyeong Choi ,  Seong-Rag Kim ,  Jin-Kyu Choi

    发明人： In-Kyeong Choi ,  Seong-Rag Kim ,  Jin-Kyu Choi

    IPC分类号： H04L27/30

    CPC分类号： H04B1/71075 ,  H04B1/71072 ,  H04B1/7117 ,  H04B1/712 ,  H04B17/336

    摘要： An interference canceller is herein disclosed wherein a baseband signal is input to a detector's fingers, and the fingers detect multi-path signals and estimate the baseband signal's channel. An MRC uses the finger's despread signal and the channel estimate to output a soft bit decision value, while a signal regenerator uses a hard bit decision value and the finger's channel estimate to regenerate the baseband signal. An SIR measurer uses a soft bit decision value and a despreader's channel estimate to measure an SIR. A signal selector compares each detector's SIR measurement value with a target SIR, and when the SIR measurement value is greater than the target SIR, it selects the detector's regeneration signal to group received signals. A subtractor subtracts the regeneration signal from the baseband signal.

    摘要翻译： 这里公开了一种干扰消除器，其中将基带信号输入到检测器的手指，并且手指检测多路径信号并估计基带信号的信道。 MRC使用手指的解扩信号和信道估计来输出软比特判定值，而信号再生器使用硬比特判定值和手指的信道估计来重新生成基带信号。 SIR测量器使用软比特判定值和解扩器的信道估计来测量SIR。 信号选择器将每个检测器的SIR测量值与目标SIR进行比较，并且当SIR测量值大于目标SIR时，它选择检测器的再生信号以对接收到的信号进行分组。 减法器从基带信号中减去再生信号。

    Mimo-ofdm system using eigenbeamforming method
    7.
    发明申请
    Mimo-ofdm system using eigenbeamforming method 有权
    使用特征波束形成方法的Mimo-ofdm系统

    公开(公告)号：US20070177681A1

    公开(公告)日：2007-08-02

    申请号：US10584641

    申请日：2004-11-25

    申请人： In-Kyeong Choi ,  Seong-Rag Kim ,  Dong-Seung Kwon ,  Jin-Ho Choi

    发明人： In-Kyeong Choi ,  Seong-Rag Kim ,  Dong-Seung Kwon ,  Jin-Ho Choi

    IPC分类号： H04L27/00 ,  H04K1/10 ,  H04L27/28

    CPC分类号： H04L27/2626 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/065 ,  H04B7/066 ,  H04L1/06 ,  H04L1/0693 ,  H04L25/03343 ,  H04L27/2647 ,  H04L2025/03414 ,  H04L2025/03426

    摘要： Disclosed is a MIMO-OFDM system, wherein the transmitter comprises a serial/parallel converter for converting continuously inputted symbols of the number of subcarriers to K parallel signals; a signal reproducer for reproducing K parallel signals by the number of transmit antennas L an eigenmode generator for generating eigenbeam of the reproduced signals outputted from the signal reproducer at each subcarrier, on the basis of Nf eigenbeam forming vectors which are fed back long-term and information of a best eigenbeam forming vector at each subcarrier which is fed back short-term, through the feedback device; and a plurality of inverse Fourier converters for receiving the signals outputted from the eigenmode generator and generating an OFDM symbol.

    摘要翻译： 公开了一种MIMO-OFDM系统，其中发射机包括串行/并行转换器，用于将连续输入的子载波数量的符号转换为K个并行信号; 信号再现器，用于根据发射天线L的数量再现K个并行信号，该天线本体模型发生器用于在每个子载波上从信号再现器输出的再生信号的本征波束，基于长期反馈的Nf本征波束形成向量， 通过反馈装置在短时间反馈的每个子载波处的最佳特征波束形成矢量的信息; 以及多个逆傅里叶变换器，用于接收从本征模式发生器输出的信号并产生OFDM符号。

    Integrated receiving apparatus of subtractive interference cancellation receiver and adaptive MMSE receiver
    10.
    发明授权
    Integrated receiving apparatus of subtractive interference cancellation receiver and adaptive MMSE receiver 失效
    减法干扰消除接收机和自适应MMSE接收机的综合接收装置

    公开(公告)号：US06570864B1

    公开(公告)日：2003-05-27

    申请号：US09441611

    申请日：1999-11-16

    申请人： Seong-Rag Kim ,  Young-Gyun Jeong ,  Nam-Jin Park ,  In-Kyeong Choi

    发明人： Seong-Rag Kim ,  Young-Gyun Jeong ,  Nam-Jin Park ,  In-Kyeong Choi

    IPC分类号： H04Q720

    CPC分类号： H04B1/71055 ,  H04B2201/70701

    摘要： A method for canceling an interference signal by using a parallel multi-stage structure in a code division multiple access (CDMA) system, includes the steps of: a) delaying a receiving signal; b) receiving and predicting data and channel parameter from the individual user; c) regenerating the interference signal of the individual user by using the data and the channel parameter predicted by the multiple receiving and predicting; and d) canceling all the interference signals delayed and transferred through the delaying by the interference signal regenerated through the multiple interference regeneration.

    摘要翻译： 一种通过在码分多址（CDMA）系统中使用并行多级结构来消除干扰信号的方法，包括以下步骤：a）延迟接收信号; b）从个人用户接收和预测数据和信道参数; c）通过使用由多个接收和预测预测的数据和信道参数来再生个体用户的干扰信号; 以及d）通过由多重干扰再生产生的干扰信号通过延迟来消除延迟和传输的所有干扰信号。