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11. 发明申请

US20070002985A1 Equalizer and equalization method 有权
标题翻译：均衡器和均衡方法
公开(公告)号：US20070002985A1
公开(公告)日：2007-01-04
申请号：US11480164
申请日：2006-06-30
申请人： Masayuki Kimata , Shousei Yoshida
发明人： Masayuki Kimata , Shousei Yoshida
IPC分类号： H04B1/10
CPC分类号： H04L25/0212 , H04L25/0228 , H04L25/03159 , H04L2025/03522
摘要： An equalizer calculates an equalization weight using a transmission channel response vector that arranges transmission channel estimation at the detection path timing and at the neighbor path timings thereof. The equalizer realizes excellent equalization characteristics by generating a transmission channel response vector that will not be affected by MPI by use of a multipath interference canceller (MPIC) to calculate the equalization weight.
摘要翻译：均衡器使用在检测路径定时和相邻路径定时处布置传输信道估计的传输信道响应向量来计算均衡权重。均衡器通过使用多路径干扰消除器（MPIC）生成不受MPI影响的传输信道响应向量来实现优异的均衡特性来计算均衡权重。

12. 发明授权

US07656940B2 Equalizer and equalizing method 有权
标题翻译：均衡和均衡方法
公开(公告)号：US07656940B2
公开(公告)日：2010-02-02
申请号：US11479265
申请日：2006-06-30
申请人： Masayuki Kimata , Shousei Yoshida
发明人： Masayuki Kimata , Shousei Yoshida
IPC分类号： H03H7/30 , G06F17/10
CPC分类号： H04L25/03159 , H04L25/0212 , H04L25/022
摘要： Filtering part 50 performs filtering by converting a received signal sampled using a predetermined number of over-samples to an over-sample number small enough to avoid frequency-domain foldover noise generation. Transmission channel estimation part 60 performs path timing detection by converting the received signal sampled using a predetermined number of over-samples to an over-sample number large enough to obtain sufficient timing resolution, converts transmission channel responses for each path timing to the frequency domain, and calculates transmission channel estimates corresponding to the subcarriers of the received signal in the frequency domain. Weight calculation part 6 receives the frequency-domain channel estimates outputted from transmission channel estimation part 60 and calculates the weights of the equalizing filter used in filtering part 50.
摘要翻译：滤波部分50通过将使用预定数量的过采样数据采样的接收信号转换成足够小的过采样数来进行滤波，以避免产生频域后验噪声。传输信道估计部分60通过将使用预定数量的过采样数据采样的接收信号转换成足够大的足够多的采样数来获得足够的定时分辨率来进行路径定时检测，将每个路径定时的传输信道响应转换为频域，并且计算与频域中的接收信号的子载波相对应的传输信道估计。权重计算部6接收从发送信道估计部60输出的频域信道估计，并计算滤波部50中使用的均衡滤波器的权重。

13. 发明授权

US07466969B2 MIMO receiver, MIMO reception method and wireless communication system 有权
标题翻译： MIMO接收机，MIMO接收方式和无线通信系统
公开(公告)号：US07466969B2
公开(公告)日：2008-12-16
申请号：US11365669
申请日：2006-03-02
申请人： Masayuki Kimata , Shousei Yoshida
发明人： Masayuki Kimata , Shousei Yoshida
IPC分类号： H04B1/06
CPC分类号： H04B7/0684 , H04B1/7097 , H04B7/04 , H04W52/16 , H04W52/42
摘要： A MIMO receiver, a MIMO reception method and a wireless communication system capable of accurate MMSE control even when each transmit antenna uses a different chip power ratio in MIMO filter reception. A correction coefficient calculator receives as input the chip power ratio of each transmit antenna, and estimates such pilot power that renders the chip power ratio of each transmit antenna equal to that of a reference transmit antenna. Thereby, the correction coefficient calculator calculates a correction coefficient βm to correct the actual pilot power of each transmit antenna. A weight calculator receives as input transmission channel impulse responses transferred into frequency domain by FFT sections, chip noise power estimated by a chip noise estimation section, and the correction coefficient βm obtained by the correction coefficient calculator. The weight calculator calculates filter weights according to the minimum mean square error (MMSE) criterion.
摘要翻译：即使在MIMO滤波器接收中每个发射天线使用不同的码片功率比时，MIMO接收机，MIMO接收方式也能够进行精确的MMSE控制的无线通信系统。校正系数计算器接收每个发射天线的芯片功率比作为输入，并且估计使每个发射天线的芯片功率比等于参考发射天线的芯片功率比的导频功率。因此，校正系数计算器计算校正系数betam，以校正每个发射天线的实际导频功率。权重计算器接收通过FFT部分输入到频域的输入传输信道脉冲响应，由芯片噪声估计部分估计的芯片噪声功率和由校正系数计算器获得的校正系数betam。权重计算器根据最小均方误差（MMSE）标准计算滤波器权重。

14. 发明申请

US20070009023A1 Equalizer and equalizing method 有权
标题翻译：均衡和均衡方法
公开(公告)号：US20070009023A1
公开(公告)日：2007-01-11
申请号：US11479265
申请日：2006-06-30
申请人： Masayuki Kimata , Shousei Yoshida
发明人： Masayuki Kimata , Shousei Yoshida
IPC分类号： H03H7/30 , H04K1/10
CPC分类号： H04L25/03159 , H04L25/0212 , H04L25/022
摘要： Filtering part 50 performs filtering by converting a received signal sampled using a predetermined number of over-samples to an over-sample number small enough to avoid frequency-domain foldover noise generation. Transmission channel estimation part 60 performs path timing detection by converting the received signal sampled using a predetermined number of over-samples to an over-sample number large enough to obtain sufficient timing resolution, converts transmission channel responses for each path timing to the frequency domain, and calculates transmission channel estimates corresponding to the subcarriers of the received signal in the frequency domain. Weight calculation part 6 receives the frequency-domain channel estimates outputted from transmission channel estimation part 60 and calculates the weights of the equalizing filter used in filtering part 50.
摘要翻译：滤波部分50通过将使用预定数量的过采样数据采样的接收信号转换成足够小的过采样数来进行滤波，以避免产生频域后验噪声。传输信道估计部分60通过将使用预定数量的过采样数据采样的接收信号转换成足够大的足够多的采样数来获得足够的定时分辨率来进行路径定时检测，将每个路径定时的传输信道响应转换为频域，并且计算与频域中的接收信号的子载波相对应的传输信道估计。权重计算部6接收从发送信道估计部60输出的频域信道估计，并计算滤波部50中使用的均衡滤波器的权重。

15. 发明授权

US08295383B2 Receiving apparatus and mobile communication system 有权
标题翻译：接收设备和移动通信系统
公开(公告)号：US08295383B2
公开(公告)日：2012-10-23
申请号：US12524065
申请日：2008-01-09
申请人： Shousei Yoshida , Masayuki Kimata
发明人： Shousei Yoshida , Masayuki Kimata
IPC分类号： H04B7/02
CPC分类号： H04B7/0854 , H04B1/71052 , H04B1/712 , H04L25/0228 , H04L25/03159 , H04L27/2647 , H04L2025/03414
摘要： A receiving apparatus is provided in which a single carrier signal is received by a plurality of receiving antennas, and multipath equalization and other cell interference suppression are carried out in a frequency domain at a same time. A plurality of antennas 1-1 to 1-N receives the single carrier signal. The DFT sections 3-1 to 3-N converts the reception signals into frequency domain signals. A channel estimating section 5 estimates a channel gain of a desired user signal by using pilot reception signals. An interference correlation matrix estimating section 6 estimates an interference correlation matrix from the pilot reception signals and a channel estimation value. A weight calculating section. A weight calculating section 7 receives the channel estimates and the interference correlation matrix and calculates equalization weights. An equalizing section 8 performs multipath equalization and other cell interference suppression to the desired user signal in a frequency domain. An IDFT section 9 converts an equalization signal into a signal in a time domain.
摘要翻译：提供一种接收装置，其中单个载波信号被多个接收天线接收，并且同时在频域中执行多径均衡和其他小区干扰抑制。多个天线1-1至1-N接收单载波信号。 DFT部3-1〜3-N将接收信号变换为频域信号。信道估计部分5通过使用导频接收信号来估计所需用户信号的信道增益。干扰相关矩阵估计部分6从导频接收信号和信道估计值估计干扰相关矩阵。权重计算部分。权重计算部分7接收信道估计和干扰相关矩阵并计算均衡权重。均衡部分8对频域中的期望用户信号执行多径均衡和其他小区干扰抑制。 IDFT部分9将均衡信号转换成时域中的信号。

16. 发明申请

US20100046661A1 RECEIVING APPARATUS AND MOBILE COMMUNICATION SYSTEM 有权
标题翻译：接收装置和移动通信系统
公开(公告)号：US20100046661A1
公开(公告)日：2010-02-25
申请号：US12524065
申请日：2008-01-09
申请人： Shousei Yoshida , Masayuki Kimata
发明人： Shousei Yoshida , Masayuki Kimata
IPC分类号： H04B15/00 , H03D1/04
CPC分类号： H04B7/0854 , H04B1/71052 , H04B1/712 , H04L25/0228 , H04L25/03159 , H04L27/2647 , H04L2025/03414
摘要： A receiving apparatus is provided in which a single carrier signal is received by a plurality of receiving antennas, and multipath equalization and other cell interference suppression are carried out in a frequency domain at a same time. A plurality of antennas 1-1 to 1-N receives the single carrier signal. The DFT sections 3-1 to 3-N converts the reception signals into frequency domain signals. A channel estimating section 5 estimates a channel gain of a desired user signal by using pilot reception signals. An interference correlation matrix estimating section 6 estimates an interference correlation matrix from the pilot reception signals and a channel estimation value. A weight, calculating section. A weight calculating section 7 receives the channel estimates and the interference correlation matrix and calculates equalization weights. An equalising section 8 performs multipath equalization and other cell interference suppression to the desired user signal in a frequency domain. An IDFT section 9 converts an equalization signal into a signal in a time domain.
摘要翻译：提供一种接收装置，其中单个载波信号被多个接收天线接收，并且同时在频域中执行多径均衡和其他小区干扰抑制。多个天线1-1至1-N接收单载波信号。 DFT部3-1〜3-N将接收信号变换为频域信号。信道估计部分5通过使用导频接收信号来估计所需用户信号的信道增益。干扰相关矩阵估计部分6从导频接收信号和信道估计值估计干扰相关矩阵。一个体重，计算部分。权重计算部分7接收信道估计和干扰相关矩阵并计算均衡权重。均衡部分8对频域中的期望用户信号执行多径均衡和其他小区干扰抑制。 IDFT部分9将均衡信号转换成时域中的信号。

17. 发明申请

US20090022253A1 INPUT CIRCUIT AND SEMICONDUCTOR INTEGRATED CIRCUIT COMPRISING THE INPUT CIRCUIT 有权
标题翻译：输入电路和包含输入电路的半导体集成电路
公开(公告)号：US20090022253A1
公开(公告)日：2009-01-22
申请号：US12162126
申请日：2007-01-23
申请人： Shousei Yoshida , Masayuki Kimata
发明人： Shousei Yoshida , Masayuki Kimata
IPC分类号： H03D1/04
CPC分类号： H04B1/76 , H04B2201/70701 , H04L25/022 , H04L25/0228 , H04L25/03159 , H04L27/2623 , H04L27/2647 , H04L2025/03414 , H04L2025/03522
摘要： Provided are a channel estimation device and an equalization device capable of achieving high channel estimation accuracy with less amount of calculation processing. The equalization device includes: a channel estimation section including a ZF calculation/clipping processing section and correlation processing section; a weight calculation section; and an equalization filter. The ZF calculation/clipping processing section uses a signal obtained by converting a pilot code into a frequency domain to calculate a pilot reference signal according to a Zero Forcing (ZF) method and clips the gain of the calculated pilot reference signal to a predetermined value to generate a clipped pilot reference signal. The correlation processing section performs correlation between a pilot reception signal in the frequency domain and clipped pilot reference signal to estimate channel characteristics of the frequency domain. The weight calculation section calculates an equalization weight based on the channel characteristics of the frequency domain. The equalization filter performs equalization processing of a frequency domain reception signal using the equalization weight.
摘要翻译：提供了能够以更少的计算处理量实现高信道估计精度的信道估计装置和均衡装置。均衡装置包括：信道估计部分，包括ZF计算/限幅处理部分和相关处理部分; 权重计算部分; 和均衡滤波器。 ZF计算/削波处理部使用通过将导频码转换成频域而获得的信号，根据零强制（ZF）方法计算导频参考信号，并将计算出的导频基准信号的增益剪切为规定值，产生限幅导频参考信号。相关处理部分执行频域中的导频接收信号和限幅导频参考信号之间的相关，以估计频域的信道特性。权重计算部分基于频域的信道特性来计算均衡权重。均衡滤波器使用均衡权重来执行频域接收信号的均衡处理。

18. 发明申请

US20070070879A1 Multi-user receiving apparatus converting SC-FDMA received signals of all users to signals in a frequency domain commonly 有权
标题翻译：多用户接收装置将所有用户的SC-FDMA接收信号转换成频域中的信号
公开(公告)号：US20070070879A1
公开(公告)日：2007-03-29
申请号：US11524941
申请日：2006-09-22
申请人： Shousei Yoshida , Masayuki Kimata , Yoshikazu Kakura , Kengo Oketani
发明人： Shousei Yoshida , Masayuki Kimata , Yoshikazu Kakura , Kengo Oketani
IPC分类号： H04J11/00
CPC分类号： H04L5/023 , H04L27/2662 , H04L2025/03414
摘要： A multi-user receiving apparatus is provided for achieving a reduction in the amount of processing for single-carrier FDMA signals and an improvement in reception characteristics. A DFT unit converts single-carrier FDMA received signals of all users to signals in a frequency domain commonly. A demapping unit selects part of sub-carriers for each user from sub-carriers supplied from the DFT unit. A reception filter separates a user signal and suppresses noise. A demodulator demodulates the user signal, and detects a timing thereof.
摘要翻译：提供了一种多用户接收装置，用于实现单载波FDMA信号的处理量的减少和接收特性的提高。 DFT单元将所有用户的单载波FDMA接收信号通常转换为频域中的信号。解映射单元从DFT单元提供的副载波中为每个用户选择子载波的一部分。接收滤波器分离用户信号并抑制噪声。解调器解调用户信号，并检测其定时。

19. 发明授权

US06825808B2 Adaptive array antenna receiving apparatus capable of shortening convergence time of antenna weight 有权
标题翻译：自适应阵列天线接收装置能够缩短天线重量的收敛时间
公开(公告)号：US06825808B2
公开(公告)日：2004-11-30
申请号：US10141943
申请日：2002-05-10
申请人： Masayuki Kimata , Shousei Yoshida
发明人： Masayuki Kimata , Shousei Yoshida
IPC分类号： H01Q324
CPC分类号： H04B7/0865
摘要： In an adaptive array antenna receiving apparatus, signal to interference ratio (SIR) measuring units are provided in signal processing units, respectively. The SIR measuring units measure signal to interference ratios of existing fingers to supply the measured results for an antenna weight succession processing unit. The antenna weight succession processing unit selects one of the existing fingers on the basis of the measured results. The antenna weight succession processing unit extracts antenna weights from one of the signal processing units that corresponds to the selected finger. The antenna weight succession processing unit supplies the extracted antenna weights to a newly assigned finger or one of the existing fingers that path timing is greatly changed.
摘要翻译：在自适应阵列天线接收装置中，分别在信号处理单元中提供信号干扰比（SIR）测量单元。 SIR测量单元测量现有手指的信号与干扰比，以提供天线权重连续处理单元的测量结果。天线重量继承处理单元基于测量结果选择现有手指中的一个。天线权重继承处理单元从对应于所选择的手指的信号处理单元之一提取天线权重。天线权重继承处理单元将所提取的天线权重提供给新分配的手指或现有手指之一，路径定时大大改变。

20. 发明授权

US08619744B2 Reception method and receiver 有权
标题翻译：接收方式和接收方
公开(公告)号：US08619744B2
公开(公告)日：2013-12-31
申请号：US12445886
申请日：2007-10-16
申请人： Shousei Yoshida , Masayuki Kimata
发明人： Shousei Yoshida , Masayuki Kimata
IPC分类号： H04J1/00 , H04B7/00 , H04B1/10 , H03D1/04
CPC分类号： H04L27/2657 , H04L27/265
摘要： In a reception method and a receiver, a base station corrects a frequency offset contained in a reception signal from each user terminal and realizes excellent reception characteristics by using a simple receiver mechanism for performing frequency domain processing in a radio system using a frequency division multiplex (FDM) method. The base station includes: a DFT section that converts reception signals from a plurality of mobile stations communicating by radio communication using FDM all at once into the frequency domain; a demapping section that recognizes, from the frequency domain signals, user signals corresponding to respective mobile stations by using sub-carriers selected in association with respective mobile stations; a correction signal generation section generating a correction signal correcting a user signal frequency offset for each user signal; a frequency conversion section that corrects the frequency offset of the user signal by the correction signal; and a demodulation section that demodulates each of the corrected user signals.
摘要翻译：在接收方法和接收机中，基站通过使用使用频分复用的无线系统中的进行频域处理的简单接收机构来校正来自各用户终端的接收信号中包含的频率偏移，并且实现良好的接收特性 FDM）方法。基站包括：DFT部分，其将通过使用FDM的无线电通信通信的多个移动台的接收信号一次全部转换到频域; 解映射部，通过使用与各个移动台相关联地选择的子载波，从频域信号中识别与各移动台对应的用户信号; 校正信号生成部，其生成校正用于每个用户信号的用户信号频率偏移量的校正信号; 频率转换部，其通过所述校正信号来校正所述用户信号的频率偏移; 以及解调部，其对每个所述校正用户信号进行解调。

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