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    Method and apparatus for predicting signal characteristics for a nonlinear power amplifier
    1.
    发明授权
    Method and apparatus for predicting signal characteristics for a nonlinear power amplifier 有权
    用于预测非线性功率放大器的信号特性的方法和装置

    公开(公告)号：US09112649B2

    公开(公告)日：2015-08-18

    申请号：US13649994

    申请日：2012-10-11

    Applicant: QUALCOMM Incorporated

    Inventor： Jifeng Geng ,  Daniel Fred Filipovic

    IPC: H04L27/36 ,  H04L1/00 ,  H03F1/02 ,  H03F3/24 ,  H03F1/32

    CPC classification number: H04L1/0033 ,  H03F1/025 ,  H03F1/3247 ,  H03F1/3288 ,  H03F3/24 ,  H03F2200/321 ,  H03F2200/336 ,  H04L27/368

    Abstract: Aspects disclosed herein relate to predicting one or more signal characteristics to improve efficiency for a PA. A wireless communications device may be include a power amplifier and a processor that is associated with a signal prediction module. In an aspect, the processor may be a modem, a RF chip, etc. In one example, the wireless communications device may be configured to buffer one or more values associated with an input signal. The signal prediction module may be configured to predict a system response to at least a portion of the one or more buffered values, and generate a switcher control signal based on the system response. The signal prediction module may also generate a predicted supply voltage from the values associated with the input signal.

    Abstract translation: 本文公开的方面涉及预测一个或多个信号特征以提高PA的效率。 无线通信设备可以包括功率放大器和与信号预测模块相关联的处理器。 在一方面，处理器可以是调制解调器，RF芯片等。在一个示例中，无线通信设备可以被配置为缓冲与输入信号相关联的一个或多个值。 信号预测模块可以被配置为预测对所述一个或多个缓冲值的至少一部分的系统响应，并且基于系统响应来生成切换器控制信号。 信号预测模块还可以根据与输入信号相关联的值产生预测的电源电压。

    METHOD AND APPARATUS FOR USING A PROCESSOR CONTROLLED SWITCHER WITH A POWER AMPLIFIER
    2.
    发明申请
    METHOD AND APPARATUS FOR USING A PROCESSOR CONTROLLED SWITCHER WITH A POWER AMPLIFIER 审中-公开
    使用功率放大器的处理器控制开关的方法和装置

    公开(公告)号：US20140210549A1

    公开(公告)日：2014-07-31

    申请号：US13752304

    申请日：2013-01-28

    Applicant: QUALCOMM INCORPORATED

    Inventor： Daniel Fred Filipovic ,  Jifeng Geng

    IPC: H03G3/30

    CPC classification number: H03G3/3042 ,  H03F1/0227

    Abstract: Aspects disclosed herein relate to using a processor controlled switcher architecture with a high-efficiency PA control. A wireless communications device may be include a processor, a power amplifier and a processor controller PA switcher. In an aspect, the processor may be a modem, a RF chip, etc. In one example, the PA switcher may be configured to receive a switcher control signal on the control line. In an aspect, the switcher control signal may be based on future characteristics of an input signal. The PA switcher may be further configured to select a voltage path from among a plurality of voltage paths based on the switcher control signal to provide a supply voltage to the lower pass filter associated with the PA.

    Abstract translation: 本文公开的方面涉及使用具有高效率PA控制的处理器控制的切换器架构。 无线通信设备可以包括处理器，功率放大器和处理器控制器PA切换器。 在一方面，处理器可以是调制解调器，RF芯片等。在一个示例中，PA切换器可以被配置为在控制线上接收切换器控制信号。 在一方面，切换器控制信号可以基于输入信号的未来特性。 PA切换器还可以被配置为基于切换器控制信号从多个电压路径中选择电压路径，以向与PA相关联的低通滤波器提供电源电压。

    Phase locked loop with digital compensation for analog integration
    3.
    发明授权
    Phase locked loop with digital compensation for analog integration 有权
    具有数字补偿的锁相环，用于模拟集成

    公开(公告)号：US08531219B1

    公开(公告)日：2013-09-10

    申请号：US13866871

    申请日：2013-04-19

    Applicant: QUALCOMM Incorporated

    Inventor： Jeremy D. Dunworth ,  Gary J. Ballantyne ,  Bhushan S. Asuri ,  Jifeng Geng ,  Gurkanwal S. Sahota

    IPC: H03L7/06

    CPC classification number: H03L7/08 ,  H03L7/093

    Abstract: A method of performing modulation of a data signal at a phase-locked loop (PLL) includes generating, at an upper frequency port of the PLL, a digital loop signal based at least in part on the data signal. The method further includes differentiating the digital loop signal to generate a digital input signal and converting the digital input signal to an analog current signal. A first feedback signal is generated based on the analog current signal. The method further includes generating, at a lower frequency port of the PLL, a second feedback signal based on the first feedback signal and further based on the data signal. According to further embodiments, apparatuses and a computer-readable medium are disclosed.

    Abstract translation: 在锁相环（PLL）处执行数据信号的调制的方法包括至少部分地基于数据信号在PLL的高频端口生成数字环路信号。 该方法还包括区分数字环路信号以产生数字输入信号并将数字输入信号转换为模拟电流信号。 基于模拟电流信号产生第一反馈信号。 该方法还包括在PLL的较低频率端口处产生基于第一反馈信号的第二反馈信号，并且还基于该数据信号。 根据另外的实施例，公开了装置和计算机可读介质。

    Radio-frequency device calibration
    5.
    发明授权
    Radio-frequency device calibration 有权

    公开(公告)号：US09729110B2

    公开(公告)日：2017-08-08

    申请号：US14205265

    申请日：2014-03-11

    Applicant: QUALCOMM Incorporated

    Inventor： Jifeng Geng

    IPC: H03F1/32 ,  H03F3/189 ,  H03F3/20 ,  H03F1/02

    CPC classification number: H03F1/3241 ,  H03F1/0211 ,  H03F1/3247 ,  H03F3/189 ,  H03F3/20

    Abstract: Exemplary embodiments are related to method and devices for calibration a radio-frequency (RF) transceiver. A method may include calibrating an RF device by calculating input voltage values and bias voltage values of a power amplifier for each desired output voltage value of the power amplifier to generate a desired compression point. The method may also include applying digital pre-distortion (DPD) values to the input voltage of the power amplifier, and measuring a value of the output voltage after applying the DPD values.

    METHOD AND APPARATUS FOR PREDICTING SIGNAL CHARACTERISTICS FOR A NONLINEAR POWER AMPLIFIER
    6.
    发明申请
    METHOD AND APPARATUS FOR PREDICTING SIGNAL CHARACTERISTICS FOR A NONLINEAR POWER AMPLIFIER 有权
    用于预测非线性功率放大器的信号特性的方法和装置

    公开(公告)号：US20140105327A1

    公开(公告)日：2014-04-17

    申请号：US13649994

    申请日：2012-10-11

    Applicant: QUALCOMM INCORPORATED

    Inventor： Jifeng Geng ,  Daniel Fred Filipovic

    IPC: H04L1/00

    CPC classification number: H04L1/0033 ,  H03F1/025 ,  H03F1/3247 ,  H03F1/3288 ,  H03F3/24 ,  H03F2200/321 ,  H03F2200/336 ,  H04L27/368

    Abstract: Aspects disclosed herein relate to predicting one or more signal characteristics to improve efficiency for a PA. A wireless communications device may be include a power amplifier and a processor that is associated with a signal prediction module. In an aspect, the processor may be a modem, a RF chip, etc. In one example, the wireless communications device may be configured to buffer one or more values associated with an input signal. The signal prediction module may be configured to predict a system response to at least a portion of the one or more buffered values, and generate a switcher control signal based on the system response. The signal prediction module may also generate a predicted supply voltage from the values associated with the input signal.

    Abstract translation: 本文公开的方面涉及预测一个或多个信号特征以提高PA的效率。 无线通信设备可以包括功率放大器和与信号预测模块相关联的处理器。 在一个方面，处理器可以是调制解调器，RF芯片等。在一个示例中，无线通信设备可以被配置为缓冲与输入信号相关联的一个或多个值。 信号预测模块可以被配置为预测对所述一个或多个缓冲值的至少一部分的系统响应，并且基于系统响应来生成切换器控制信号。 信号预测模块还可以根据与输入信号相关联的值产生预测的电源电压。

    TECHNIQUES FOR SUCCESSIVE PEAK REDUCTION CREST FACTOR REDUCTION
    7.
    发明申请
    TECHNIQUES FOR SUCCESSIVE PEAK REDUCTION CREST FACTOR REDUCTION 审中-公开

    公开(公告)号：US20190372817A1

    公开(公告)日：2019-12-05

    申请号：US15991759

    申请日：2018-05-29

    Applicant: QUALCOMM Incorporated

    Inventor： Jifeng Geng ,  Feng Wang ,  Insung Kang

    IPC: H04L27/26 ,  H04B1/04

    Abstract: Methods, systems, and devices for wireless communications are described. The described methods, systems, and devices may include sampling an input signal to obtain one or more signal windows. An amplitude of a first sample within a first signal window of the one or more signal windows may be determined to exceed an amplitude threshold. A series of cancellation pulses may be combined with the first sample within the first signal window to obtain a reduced signal, the reduced signal including one or more reduced samples each having an amplitudes within the amplitude threshold. The series of cancellation pulses may be based on a characteristic of the first sample. The reduced signal may then be transmitted. The series of cancellation pulses may be based on, for example, an envelope of the first sample. In some cases, the series of cancellation pulses may be based on a phase of the first sample.

    METHOD AND APPARATUS FOR APPLYING PREDISTORTION TO AN INPUT SIGNAL FOR A NONLINEAR POWER AMPLIFIER
    10.
    发明申请
    METHOD AND APPARATUS FOR APPLYING PREDISTORTION TO AN INPUT SIGNAL FOR A NONLINEAR POWER AMPLIFIER 审中-公开
    将输入信号应用于非线性功率放大器的方法和装置

    公开(公告)号：US20140218107A1

    公开(公告)日：2014-08-07

    申请号：US13758816

    申请日：2013-02-04

    Applicant: QUALCOMM INCORPORATED

    Inventor： Jifeng Geng ,  Daniel Fred Filipovic

    IPC: H03F1/32

    CPC classification number: H03F1/3241 ,  H03F1/0211 ,  H03F1/025 ,  H03F1/3282 ,  H03F1/3294 ,  H03F3/24 ,  H03F2200/321 ,  H03F2200/336 ,  H04L27/367

    Abstract: Aspects disclosed herein relate to providing an efficiently predistorted input signal to a high-efficiency PA. A wireless communications device may be include a power amplifier and a processor that is associated with a predistortion module. In an aspect, the processor may be a modem, a RF chip, etc. In one example, the pre-distortion module may be configured to receive an input signal and a supply voltage associated with the input signal. The predistortion module may be further configured to apply predistortion to the input signal using a linear manipulation associated with the predistortion lookup table. In an aspect, the linear manipulation may adjust the input signal based on one or more non-linear device characteristics associated with the supply voltage.

    Abstract translation: 本文公开的方面涉及向高效PA提供有效的预失真输入信号。 无线通信设备可以包括功率放大器和与预失真模块相关联的处理器。 在一个方面，处理器可以是调制解调器，RF芯片等。在一个示例中，预失真模块可以被配置为接收与输入信号相关联的输入信号和电源电压。 预失真模块还可以被配置为使用与预失真查询表相关联的线性操作将预失真应用于输入信号。 在一方面，线性操纵可以基于与电源电压相关联的一个或多个非线性设备特性来调整输入信号。

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