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    FREQUENCY DOMAIN CHANNEL ESTIMATION FOR WIRELESS REPEATERS
    1.
    发明申请
    FREQUENCY DOMAIN CHANNEL ESTIMATION FOR WIRELESS REPEATERS 审中-公开
    无线中继器的频域信道估计

    公开(公告)号：WO2010132475A8

    公开(公告)日：2011-06-16

    申请号：PCT/US2010034416

    申请日：2010-05-11

    Applicant: QUALCOMM INC ,  GORE DHANANJAY ASHOK ,  BARRIAC GWENDOLYN DENISE ,  HOWARD STEVEN J

    Inventor： GORE DHANANJAY ASHOK ,  BARRIAC GWENDOLYN DENISE ,  HOWARD STEVEN J

    IPC: H04L25/02 ,  H04B7/155

    CPC classification number: H04L25/022 ,  H04B7/15585 ,  H04L25/0226

    Abstract: A method for estimating a feedback channel for a wireless repeater uses frequency domain channel estimation and uses a signal indicative of the amplified signal as a pilot signal. The channel estimation method generates a time domain feedback channel estimate from the frequency domain channel estimation and scales the time domain feedback channel estimate using scaling factors. In one embodiment, the scaling factors are function of a tap index and the block size of the frequency domain channel estimation.

    Abstract translation: 用于估计无线中继器的反馈信道的方法使用频域信道估计，并且使用表示放大的信号的信号作为导频信号。 信道估计方法从频域信道估计生成时域反馈信道估计，并使用缩放因子来缩放时域反馈信道估计。 在一个实施例中，缩放因子是抽头索引和频域信道估计的块大小的函数。

    SYSTEMS AND METHODS FOR CHANNEL ESTIMATION IN WIRELESS COMMUNICATION SYSTEM
    4.
    发明申请
    SYSTEMS AND METHODS FOR CHANNEL ESTIMATION IN WIRELESS COMMUNICATION SYSTEM 审中-公开
    无线通信系统信道估计系统与方法

    公开(公告)号：WO2008083399A3

    公开(公告)日：2008-09-12

    申请号：PCT/US2008050011

    申请日：2008-01-02

    Applicant: QUALCOMM INC ,  BJERKE BJORN ,  HOWARD STEVEN J

    Inventor： BJERKE BJORN ,  HOWARD STEVEN J

    IPC: H04L25/02

    CPC classification number: H04L25/0212 ,  H04L27/2647

    Abstract: Disclosed herein are methods and apparatus for enhancing the estimation of channel response in a wireless communication system. An apparatus (and associated method) for optimizing channel estimation in a communication system includes a receiving antenna; a receiver adapted to receive a signal from the receiving antenna; an initial channel estimator module adapted to select a selected channel from among one or more channels in the communication system and to determine, for the selected channel, an initial channel estimate based upon the received signal; a transformation module adapted to transform the initial channel estimate into an initial impulse response estimate comprising a sequence of samples; a filtering module adapted to select a sub-sequence of samples from the sequence of samples and generate a truncated initial impulse response estimate by setting to zero the samples in the initial impulse response estimate that are not in the selected sub-sequence of samples; and a maximum likelihood channel estimating module adapted to compute a time domain weighted impulse response estimate using the truncated time domain impulse response estimate for the selected channel and to compute a maximum likelihood channel estimate for the selected channel by transforming the time domain weighted impulse response estimate into the frequency domain.

    Abstract translation: 这里公开了用于增强无线通信系统中的信道响应的估计的方法和装置。 一种用于在通信系统中优化信道估计的装置（及相关方法）包括接收天线; 接收器，适于从所述接收天线接收信号; 初始信道估计器模块，其适于从所述通信系统中的一个或多个信道中选择所选择的信道，并且针对所选择的信道，基于接收到的信号来确定初始信道估计; 转换模块，其适于将所述初始信道估计转换为包括样本序列的初始脉冲响应估计; 滤波模块，其适于从样本序列中选择样本的子序列，并通过将不在所选择的样本子序列中的初始脉冲响应估计中的样本设置为零来产生截短的初始脉冲响应估计; 以及最大似然信道估计模块，其适于使用所选择的信道的截断的时域脉冲响应估计来计算时域加权的脉冲响应估计，并且通过变换所述时域加权的脉冲响应估计来计算所选择的信道的最大似然信道估计 进入频域。

    EIGENVALUE DECOMPOSITION OF MIMO CHANNEL CORRELATION MATRICES USING CORDIC PROCESSORS
    5.
    发明申请
    EIGENVALUE DECOMPOSITION OF MIMO CHANNEL CORRELATION MATRICES USING CORDIC PROCESSORS 审中-公开
    使用CORDIC处理器的MIMO信道相关矩阵的特征值分解

    公开(公告)号：WO2006053341A3

    公开(公告)日：2008-07-17

    申请号：PCT/US2005041784

    申请日：2005-11-15

    Applicant: QUALCOMM INC ,  HOWARD STEVEN J ,  KETCHUM JOHN W ,  WALLACE MARK S ,  WALTON JAY RODNEY

    Inventor： HOWARD STEVEN J ,  KETCHUM JOHN W ,  WALLACE MARK S ,  WALTON JAY RODNEY

    IPC: G06F17/16 ,  H04J99/00 ,  H04B7/04 ,  H04L25/02

    CPC classification number: G06F17/16 ,  H04B7/0413 ,  H04B7/0617 ,  H04L25/0208 ,  H04L25/0248 ,  H04L27/2647

    Abstract: For eigenvalue decomposition, a first set of at least one variable is derived based on a first matrix being decomposed and using Coordinate Rotational Digital Computer (CORDIC) computation. A second set of at least one variable is derived based on the first matrix and using a look-up table. A second matrix of eigenvectors of the first matrix is then derived based on the first and second variable sets. To derive the first variable set, CORDIC computation is performed on an element of the first matrix to determine the magnitude and phase of this element, and CORDIC computation is performed on the phase to determine the sine and cosine of this element. To derive the second variable set, intermediate quantities are derived based on the first matrix and used to access the look-up table. Jacobi rotations are performed using CORDIC processing.

    Abstract translation: 对于特征值分解，基于正在分解的第一矩阵并使用坐标旋转数字计算机（CORDIC）计算来导出至少一个变量的第一组。 基于第一矩阵并使用查找表导出第二组至少一个变量。 然后基于第一和第二变量集导出第一矩阵的特征向量的第二矩阵。 为了导出第一变量集，对第一矩阵的元素执行CORDIC计算，以确定该元素的幅度和相位，并且在相位上执行CORDIC计算以确定该元素的正弦和余弦。 为了导出第二变量集，基于第一矩阵导出中间量并用于访问查找表。 使用CORDIC处理执行Jacobi旋转。

    SYSTEMS AND METHODS FOR ENHANCED CHANNEL ESTIMATION IN WIRELESS COMMUNICATION SYSTEMS
    6.
    发明申请
    SYSTEMS AND METHODS FOR ENHANCED CHANNEL ESTIMATION IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
    无线通信系统中增强信道估计的系统与方法

    公开(公告)号：WO2008083399A2

    公开(公告)日：2008-07-10

    申请号：PCT/US2008/050011

    申请日：2008-01-02

    Applicant: QUALCOMM Incorporated ,  BJERKE, Bjorn ,  HOWARD, Steven J.

    Inventor： BJERKE, Bjorn ,  HOWARD, Steven J.

    IPC: H04L25/02

    CPC classification number: H04L25/0212 ,  H04L27/2647

    Abstract: Disclosed herein are methods and apparatus for enhancing the estimation of channel response in a wireless communication system. An apparatus (and associated method) for optimizing channel estimation in a communication system includes a receiving antenna; a receiver adapted to receive a signal from the receiving antenna; an initial channel estimator module adapted to select a selected channel from among one or more channels in the communication system and to determine, for the selected channel, an initial channel estimate based upon the received signal; a transformation module adapted to transform the initial channel estimate into an initial impulse response estimate comprising a sequence of samples; a filtering module adapted to select a sub-sequence of samples from the sequence of samples and generate a truncated initial impulse response estimate by setting to zero the samples in the initial impulse response estimate that are not in the selected sub-sequence of samples; and a maximum likelihood channel estimating module adapted to compute a time domain weighted impulse response estimate using the truncated time domain impulse response estimate for the selected channel and to compute a maximum likelihood channel estimate for the selected channel by transforming the time domain weighted impulse response estimate into the frequency domain.

    Abstract translation: 这里公开了用于增强无线通信系统中的信道响应的估计的方法和装置。 一种用于在通信系统中优化信道估计的装置（及相关方法）包括接收天线; 接收器，适于从所述接收天线接收信号; 初始信道估计器模块，其适于从所述通信系统中的一个或多个信道中选择所选择的信道，并且针对所选择的信道，基于接收到的信号来确定初始信道估计; 转换模块，其适于将所述初始信道估计转换为包括样本序列的初始脉冲响应估计; 滤波模块，其适于从样本序列中选择样本的子序列，并通过将不在所选择的样本子序列中的初始脉冲响应估计中的样本设置为零来产生截短的初始脉冲响应估计; 以及最大似然信道估计模块，其适于使用所选择的信道的截断的时域脉冲响应估计来计算时域加权的脉冲响应估计，并且通过变换所述时域加权的脉冲响应估计来计算所选择的信道的最大似然信道估计 进入频域。

    PHASE CORRECTION FOR OFDM AND MIMO TRANSMISSIONS
    7.
    发明申请
    PHASE CORRECTION FOR OFDM AND MIMO TRANSMISSIONS 审中-公开

    公开(公告)号：WO2007137281A3

    公开(公告)日：2007-11-29

    申请号：PCT/US2007/069501

    申请日：2007-05-22

    Applicant: QUALCOMM Incorporated ,  WALTON, J. Rodney ,  WALLACE, Mark S. ,  MEDVEDEV, Irina ,  HOWARD, Steven, J.

    Inventor： WALTON, J. Rodney ,  WALLACE, Mark S. ,  MEDVEDEV, Irina ,  HOWARD, Steven, J.

    IPC: H04L27/26 ,  H04L27/00

    Abstract: Techniques for performing phase correction for wireless communication are described. Received pilot symbols and received data symbols may be obtained from an orthogonal frequency division multiplexing (OFDM) and/or multiple-input multiple-output (MIMO) transmission. First phase information is obtained based upon the received pilot symbols. Second phase information is obtained based upon the received data symbols. The phase of the received data symbols is corrected based upon the first and second phase information (directly and/or indirectly). For example, the phase of the received data symbols may be corrected based upon the first phase information, detection may be performed on the phase corrected data symbols to obtain estimated data symbols, the second phase information may be obtained based upon the estimated data symbols, and the phase of the estimated data symbols may be corrected based upon the second phase information. The phase correction may also be performed in other manners.

    ARYL-ALKYLAMINES AND HETEROARYL-ALKYLAMINES AS PROTEIN KINASE INHIBITORS
    8.
    发明申请
    ARYL-ALKYLAMINES AND HETEROARYL-ALKYLAMINES AS PROTEIN KINASE INHIBITORS 审中-公开
    ARYL-ALKYLAMINES和异丁烯酰胺作为蛋白激酶抑制剂

    公开(公告)号：WO2006136830A1

    公开(公告)日：2006-12-28

    申请号：PCT/GB2006/002287

    申请日：2006-06-21

    Applicant: ASTEX THERAPEUTICS LIMITED ,  THE INSTITUTE OF CANCER RESEARCH: ROYAL CANCER HOSPITAL ,  CANCER RESEARCH TECHNOLOGY LIMITED ,  ASTRAZENECA AB ,  WOODHEAD, Steven, John ,  DOWNHAM, Robert ,  HAMLETT, Christopher ,  HOWARD, Steven ,  SORE, Hannah, Fiona ,  VERDONK, Marinus, Leendert ,  WALKER, David, Winter ,  LUKE, Richard, William, Arthur

    Inventor： WOODHEAD, Steven, John ,  DOWNHAM, Robert ,  HAMLETT, Christopher ,  HOWARD, Steven ,  SORE, Hannah, Fiona ,  VERDONK, Marinus, Leendert ,  WALKER, David, Winter ,  LUKE, Richard, William, Arthur

    IPC: C07D231/12 ,  A61K31/415 ,  A61P37/02

    CPC classification number: C07D231/12

    Abstract: The invention provides a compound of the formula (II): or a salt, solvate, tautomer or N-oxide thereof; wherein n is 0 or 1; one of Y 1 and Y 2 is CH and the other is selected from CH, CR 8 and N; q is 0, 1 or 2 provided that q is 0 or 1 when Y 1 or Y 2 is CR 8 ; R 1 is an aryl or heteroaryl group of 5 to 10 ring members; R 2a and R 3a each are hydrogen, C 1-4 hydrocarbyl or C 1-4 acyl wherein the hydrocarbyl and acyl moieties are optionally substituted by fluorine, hydroxy, amino, methylamino, dimethylamino or methoxy; or NR 2a R 3a forms an imidazole group or a saturated monocyclic 4-7 membered heterocyclic group optionally containing a second heteroatom ring member selected from O and N; R 18 is hydrogen or methyl; R 19 is hydrogen or methyl; R 24 is hydrogen or R 24 , R 2a and the intervening nitrogen atom and carbon atoms together form an azetidine, pyrrolidine or piperidine ring; R 25 is hydrogen or a C 1-4 alkyl group wherein the C 1-4 alkyl group is optionally substituted by hydroxy or amino provided that there are at least two carbon atoms between the hydroxy or amino group and the oxygen atom to which R 25 is attached; and R4 and R 5 each are hydrogen or a substituent as defined in the claims

    Abstract translation: 本发明提供式（II）化合物或其盐，溶剂合物，互变异构体或N-氧化物; 其中n为0或1; Y 1和Y 2中的一个是CH，另一个选自CH，CR 8和N; q为0,1或2，条件是当Y 1或Y 2为CR 8时q为0或1。 R 1是5至10个环成员的芳基或杂芳基; R 2a和R 3a各自为氢，C 1-4 - 烃基或C 1-4 - 酰基，其中， 烃基和酰基部分任选被氟，羟基，氨基，甲基氨基，二甲基氨基或甲氧基取代; 或NR 2a R 3a形成任选含有选自O和N的第二杂原子环成员的咪唑基或饱和单环4-7元杂环基; R 18是氢或甲基; R 19是氢或甲基; R 24是氢或R 24，R 2a和中间的氮原子和碳原子一起形成氮杂环丁烷，吡咯烷或哌啶环; R 25是氢或C 1-4烷基，其中C 1-4烷基任选被羟基或氨基取代，条件是 在羟基或氨基与R 25连接的氧原子之间至少有两个碳原子; 且R 4和R 5各自为氢或权利要求中所定义的取代基

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