CONTINUOUS PHASE MODULATION PROCESSING FOR WIRELESS NETWORKS
    21.
    发明申请
    CONTINUOUS PHASE MODULATION PROCESSING FOR WIRELESS NETWORKS 有权
    无线网络的连续相位调制处理

    公开(公告)号:US20090154336A1

    公开(公告)日:2009-06-18

    申请号:US11956113

    申请日:2007-12-13

    IPC分类号: H04J1/20 H04L5/12

    CPC分类号: H04L27/2003 H04L5/0044

    摘要: Various example embodiments are disclosed herein. According to an example embodiment, a method may include receiving a plurality of data symbols, generating a continuous phase modulated waveform based on the data symbols, generating a plurality of coefficients which represent the continuous phase modulated waveform, and wirelessly transmitting the plurality of coefficients via a plurality of subcarriers.

    摘要翻译: 本文公开了各种示例性实施例。 根据示例实施例,一种方法可以包括接收多个数据符号,基于数据符号生成连续相位调制波形,产生表示连续相位调制波形的多个系数,以及经由 多个子载波。

    Apparatus, method and computer program product providing joint synchronization using semi-analytic root-likelihood polynomials for OFDM systems
    22.
    发明申请
    Apparatus, method and computer program product providing joint synchronization using semi-analytic root-likelihood polynomials for OFDM systems 审中-公开
    用于OFDM系统的半解析根似然多项式的装置,方法和计算机程序产品提供联合同步

    公开(公告)号:US20070153930A1

    公开(公告)日:2007-07-05

    申请号:US11646751

    申请日:2006-12-28

    申请人: Anthony Reid

    发明人: Anthony Reid

    IPC分类号: H04K1/10

    摘要: A method includes determining a number of observations. Each observation occurs at an observation time and corresponds to one of a number of received frequency multiplexed training symbols. The method also includes determining a number of roots of a first polynomial equation that is a function of a variable corresponding to frequency offset errors of carrier frequencies of the training symbols. Constants in the first polynomial equation are determined using at least the observations. The roots of the variable correspond to possible frequency offset errors. Based on at least the observations, the possible frequency offset errors, and possible symbol timing offset errors of the observation times of the training symbols, a number of estimated channel responses are determined corresponding to the training symbols. The method includes using a second polynomial equation that is a function of at least the estimated channel responses, the possible frequency offset errors, and the possible symbol timing offset errors, determining at least a resultant frequency offset error and a resultant symbol timing offset error. The method further includes using the resultant frequency offset error and resultant symbol timing offset error in order to receive at least one frequency multiplexed data symbol.

    摘要翻译: 一种方法包括确定多个观察值。 每个观察发生在观察时间,并且对应于多个接收频率复用训练符号中的一个。 该方法还包括确定第一多项式方程的根数,其是对应于训练符号的载波频率的频率偏移误差的变量的函数。 使用至少观察值确定第一个多项式方程中的常数。 变量的根对应于可能的频偏错误。 基于训练符号的观察时间的至少观察值,可能的频率偏移误差和可能的符号定时偏移误差,对应于训练符号确定多个估计的信道响应。 该方法包括使用至少是所估计的信道响应,可能的频率偏移误差和可能的符号定时偏移误差的函数的第二多项式方程,至少确定合成的频率偏移误差和合成的符号定时偏移误差。 该方法还包括使用所得到的频率偏移误差和结果符号定时偏移误差,以便接收至少一个频率复用数据符号。

    Hochwald construction of unitary matrix codebooks via eigen coordinate transformations
    23.
    发明申请
    Hochwald construction of unitary matrix codebooks via eigen coordinate transformations 有权
    Hochwald通过特征坐标变换构建酉矩阵码本

    公开(公告)号:US20060161432A1

    公开(公告)日:2006-07-20

    申请号:US11119513

    申请日:2005-04-29

    IPC分类号: G10L15/12

    摘要: A method of deriving a codebook including deriving a first codeword P1 in Euclidean coordinates, transforming the first codeword into eigen-coordinates, applying a Hochwald construction to the first codeword in eigen-coordinates to derive a plurality of codewords in eigen-coordinates and transforming the plurality of codewords in eigen-coordinates into a plurality of codewords in Euclidean coordinates to form the codebook.

    摘要翻译: 一种导出码本的方法,包括在欧几里德坐标中导出第一码字P 1> 1,将第一码字变换为本征坐标,将本征坐标中的Hochwald结构应用于第一码字,以导出多个 特征坐标中的码字,并将本征坐标中的多个码字变换为欧氏坐标中的多个码字以形成码本。