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    Capture selection for digital pre-distortion adaptation and capture concatenation for frequency hopping pre-distortion adaptation
    11.
    发明授权
    Capture selection for digital pre-distortion adaptation and capture concatenation for frequency hopping pre-distortion adaptation 有权
    捕获选择数字预失真适应和捕获级联跳频预失真适应

    公开(公告)号：US09374112B2

    公开(公告)日：2016-06-21

    申请号：US14475552

    申请日：2014-09-02

    Applicant: Texas Instruments Incorporated

    Inventor： Zigang Yang ,  Raul Blazquez ,  Hardik Prakash Gandhi ,  Xiaohan Chen ,  Lars Jorgensen

    IPC: H04L25/49 ,  H04B1/04 ,  H04W88/08

    CPC classification number: H04B1/0475 ,  H03F1/3241 ,  H04B2001/0425 ,  H04W88/08

    Abstract: A digital pre-distortion component includes: a first capturing component that captures a first sample set of data; a first generating component that generates a first change matrix associated with a portion of the first sample set of data; a first memory component that stores the first change matrix; a second capturing component that captures a second sample set of data; a second generating component that generates a second change matrix associated with a portion of the second sample set of data; a second memory component that stores the second change matrix; a third capturing component that captures a third sample set of data; a third generating component that generates a third change matrix associated with a portion of the third sample set of data; a comparing component that compares the third change matrix with the first change matrix to obtain a first comparison, and compares the third change matrix with the second change matrix to obtain a second comparison; and an adapting component that adapts the digital pre-distortion component with the third sample set of data based on one of the first comparison and the second comparison.

    Abstract translation: 数字预失真部件包括：第一捕获部件，其捕获第一采样数据集; 第一生成组件，其生成与所述第一样本数据集合的一部分相关联的第一改变矩阵; 存储所述第一改变矩阵的第一存储器组件; 捕获第二样本数据集合的第二捕获组件; 第二生成组件，其生成与所述第二样本数据集合的一部分相关联的第二改变矩阵; 存储所述第二改变矩阵的第二存储器组件; 捕获第三样本数据集合的第三捕获组件; 第三生成组件，其生成与所述第三样本数据集的一部分相关联的第三变化矩阵; 将所述第三变化矩阵与所述第一变化矩阵进行比较以获得第一比较的比较部，将所述第三变化矩阵与所述第二变化矩阵进行比较，得到第二比较; 以及适配部件，其基于第一比较和第二比较中的一个来适配数字预失真分量与第三样本数据集合。

    CAPTURE SELECTION FOR DIGITAL PRE-DISTORTION ADAPTATION AND CAPTURE CONCATENATION FOR FREQUENCY HOPPING PRE-DISTORTION ADAPTATION
    12.
    发明申请
    CAPTURE SELECTION FOR DIGITAL PRE-DISTORTION ADAPTATION AND CAPTURE CONCATENATION FOR FREQUENCY HOPPING PRE-DISTORTION ADAPTATION 有权
    用于频率预失真适应的数字预失真适应和捕获定位的捕获选择

    公开(公告)号：US20160065249A1

    公开(公告)日：2016-03-03

    申请号：US14475552

    申请日：2014-09-02

    Applicant: Texas Instruments Incorporated

    Inventor： Zigang Yang ,  Raul Blazquez ,  Hardik Prakash Gandhi ,  Xiaohan Chen ,  Lars Jorgensen

    IPC: H04B1/04

    CPC classification number: H04B1/0475 ,  H03F1/3241 ,  H04B2001/0425 ,  H04W88/08

    Abstract: A digital pre-distortion component includes: a first capturing component that captures a first sample set of data; a first generating component that generates a first change matrix associated with a portion of the first sample set of data; a first memory component that stores the first change matrix; a second capturing component that captures a second sample set of data; a second generating component that generates a second change matrix associated with a portion of the second sample set of data; a second memory component that stores the second change matrix; a third capturing component that captures a third sample set of data; a third generating component that generates a third change matrix associated with a portion of the third sample set of data; a comparing component that compares the third change matrix with the first change matrix to obtain a first comparison, and compares the third change matrix with the second change matrix to obtain a second comparison; and an adapting component that adapts the digital pre-distortion component with the third sample set of data based on one of the first comparison and the second comparison.

    Abstract translation: 数字预失真部件包括：第一捕获部件，其捕获第一采样数据集; 第一生成组件，其生成与所述第一样本数据集合的一部分相关联的第一改变矩阵; 存储所述第一改变矩阵的第一存储器组件; 捕获第二样本数据集合的第二捕获组件; 第二生成组件，其生成与所述第二样本数据集合的一部分相关联的第二改变矩阵; 存储所述第二改变矩阵的第二存储器组件; 捕获第三样本数据集合的第三捕获组件; 第三生成组件，其生成与所述第三样本数据集的一部分相关联的第三变化矩阵; 将所述第三变化矩阵与所述第一变化矩阵进行比较以获得第一比较的比较部，将所述第三变化矩阵与所述第二变化矩阵进行比较，得到第二比较; 以及适配部件，其基于第一比较和第二比较中的一个来适配数字预失真分量与第三样本数据集合。

    Subtracting linear impairments for non-linear impairment digital pre-distortion error signal
    13.
    发明授权
    Subtracting linear impairments for non-linear impairment digital pre-distortion error signal 有权
    减去非线性损伤数字预失真误差信号的线性损伤

    公开(公告)号：US09136887B2

    公开(公告)日：2015-09-15

    申请号：US14185888

    申请日：2014-02-20

    Applicant: Texas Instruments Incorporated

    Inventor： Hongzhi Zhao ,  Xiaohan Chen ,  Zigang Yang

    IPC: H04K1/02 ,  H04B1/04

    CPC classification number: H04B1/0475 ,  H03F1/3241 ,  H04B2001/0425

    Abstract: Example embodiment of the systems and methods of linear impairment modeling to improve digital pre-distortion adaptation performance includes a DPD module that is modified during each sample by a DPD adaptation engine. A linear impairment modeling module separates the linear and non-linear errors introduced in the power amplifier. The linear impairment model is adjusted during each sample using inputs from the input signal and from a FB post processing module. The linear impairment modeling module removes the linear errors such that the DPD adaptation engine only adapts the DPD module based on the non-linear errors. This increases system stability and allows for the correction of IQ imbalance inside the linear impairment modeling, simplifying the feedback post-processing.

    Abstract translation: 用于改善数字预失真适应性能的线性损伤建模的系统和方法的示例性实施例包括在DPD适配引擎的每个采样期间修改的DPD模块。 线性损伤建模模块分离功率放大器中引入的线性和非线性误差。 在每个采样中使用输入信号和FB后处理模块的输入调整线性损伤模型。 线性损伤建模模块消除线性误差，使得DPD自适应引擎仅基于非线性误差来适应DPD模块。 这增加了系统稳定性，并允许在线性损伤建模中对IQ不平衡进行校正，从而简化了反馈后处理。

    Crest Factor Reduction for Multi-Band System
    15.
    发明申请
    Crest Factor Reduction for Multi-Band System 审中-公开
    多频带系统的波峰因数降低

    公开(公告)号：US20140169496A1

    公开(公告)日：2014-06-19

    申请号：US14108343

    申请日：2013-12-17

    Applicant: Texas Instruments Incorporated

    Inventor： Zigang Yang ,  Lars Jorgensen ,  Hardik Gandhi ,  Lei Ding

    IPC: H04B1/04

    CPC classification number: H04B1/0475 ,  H03F1/3241 ,  H03F3/24 ,  H03F2200/435 ,  H04L27/368

    Abstract: Systems and methods for crest factor reduction (CFR) are described. A multi-band CFR architecture achieves significant hardware savings without sacrificing CFR performance by applying peak cancellation to each band individually. However, peak detection is calculated based on a combined input signal.

    Abstract translation: 描述了波峰因数降低的系统和方法（CFR）。 多频段CFR架构通过对每个频带单独应用峰值消除，可以显着节省硬件成本，而不会牺牲CFR性能。 然而，基于组合的输入信号计算峰值检测。

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