Method for establishing a wireless communication link
    41.
    发明申请
    Method for establishing a wireless communication link 有权
    用于建立无线通信链路的方法

    公开(公告)号:US20070037517A1

    公开(公告)日:2007-02-15

    申请号:US10547814

    申请日:2004-01-22

    IPC分类号: H04B7/00

    CPC分类号: H04W88/06

    摘要: A wireless communication link between two communication devices is established. A communication signal for contacting a second communication device is emitted from a first communication device. The communication signal is a first type of wireless data communication. Communications that are configured to transmit and receive data according to a second type of data communication are activated in the first communication device. Upon receipt of the communication signal, communications that are able to transmit and receive data according to the second type of data communication are activated in the second communication device, and the communication link according to the second type of data communication is established.

    摘要翻译: 建立两个通信设备之间的无线通信链路。 用于接触第二通信设备的通信信号从第一通信设备发射。 通信信号是第一类无线数据通信。 被配置为根据第二类型的数据通信来发送和接收数据的通信在第一通信设备中被激活。 在接收到通信信号时,在第二通信设备中激活能够根据第二类型的数据通信发送和接收数据的通信,并且建立根据第二类型的数据通信的通信链路。

    Circuit arrangement and method for determining a frequency drift in a phase locked loop
    42.
    发明申请
    Circuit arrangement and method for determining a frequency drift in a phase locked loop 审中-公开
    用于确定锁相环中的频率漂移的电路布置和方法

    公开(公告)号:US20060067454A1

    公开(公告)日:2006-03-30

    申请号:US11234686

    申请日:2005-09-23

    申请人: Andrea Camuffo

    发明人: Andrea Camuffo

    IPC分类号: H03D3/24

    CPC分类号: H03L7/193

    摘要: A circuit arrangement for determining a frequency drift in a phase locked loop includes a type I phase locked loop having a phase comparator, a charge pump, a loop filter, an oscillator and also a frequency divider in a feedback path of the control loop. A device is coupled to the phase locked loop for the purpose of determining a pulse length of the actuating voltage signal at at least two different times during an operation of the control loop. Furthermore, a computing unit is connected to an output of the device. It is designed for forming a difference between the pulse lengths at the at least two different times, as a result of which a phase and frequency drift of an output signal of the control loop can be determined.

    摘要翻译: 用于确定锁相环中的频率漂移的电路装置包括在控制环路的反馈路径中具有相位比较器,电荷泵,环路滤波器,振荡器以及分频器的I型锁相环。 为了在控制环路的操作期间至少两个不同的时间确定致动电压信号的脉冲长度,一个装置耦合到锁相环。 此外,计算单元连接到设备的输出。 其设计用于在至少两个不同时间处形成脉冲长度之间的差异,结果可以确定控制回路的输出信号的相位和频率漂移。

    Joint adaptive bias point adjustment and digital pre-distortion for power amplifier
    43.
    发明授权
    Joint adaptive bias point adjustment and digital pre-distortion for power amplifier 有权
    功率放大器的联合自适应偏置点调整和数字预失真

    公开(公告)号:US08908751B2

    公开(公告)日:2014-12-09

    申请号:US13036758

    申请日:2011-02-28

    摘要: One embodiment of the present invention relates to a method and apparatus are provided herein for reducing the power consumption of a transmission chain while maintaining an acceptable figure of merit (e.g., linearity). In one embodiment, an adaptive biasing element is configured to perform adaptive biasing to reduce current consumption of a transmission chain by adjusting the operating point of one or more transmission chain elements (e.g., power amplifier, mixer, etc.). However, since adaptive biasing may reduce the linearity of a transmitted signal, its use is limited by the degradation of figure of merit caused by the introduced non-linearities. Accordingly, a pre-distortion element may be configured to perform adaptive digital pre-distortion (DPD) on a transmission chain input signal to account for non-linearities generated through the adaptive biasing, therefore allowing the adaptive biasing to further reduce the current consumption while maintaining an acceptable figure of merit.

    摘要翻译: 本发明的一个实施例涉及一种方法和装置,用于在保持可接受的品质因数(例如线性度)的同时降低传输链的功率消耗。 在一个实施例中,自适应偏置元件被配置为执行自适应偏置以通过调整一个或多个传输链元件(例如,功率放大器,混频器等)的工作点来减小传输链的电流消耗。 然而,由于自适应偏置可以降低发射信号的线性度,所以其使用受到引入的非线性引起的品质因数的劣化的限制。 因此,预失真元件可以被配置为在传输链输入信号上执行自适应数字预失真(DPD),以解决通过自适应偏置产生的非线性,从而允许自适应偏置进一步降低电流消耗,同时 保持可接受的品质因数。

    STRATEGY FOR USING THE ENVELOPE INFORMATION WITHIN A CLOSED LOOP POWER CONTROL SYSTEM
    45.
    发明申请
    STRATEGY FOR USING THE ENVELOPE INFORMATION WITHIN A CLOSED LOOP POWER CONTROL SYSTEM 有权
    在闭环功率控制系统中使用信封信息的策略

    公开(公告)号:US20090298448A1

    公开(公告)日:2009-12-03

    申请号:US12130835

    申请日:2008-05-30

    IPC分类号: H04B1/04

    摘要: A power control system includes a reference path filter used to suppress high frequencies in an input signal and generate a filtered envelope signal, a reference path amplifier to scale the filtered input signal based on a gain signal and generate a reference signal, a signal path amplifier to amplify an RF modulated signal and generate a signal path output signal scaled by a gain of an actuator signal, and a power detector to detect a power associated with the signal path output signal. The system includes an ADC to receive, pre-filter and convert the detected envelope signal into a measurement signal, and a comparator block to receive the reference signal and the measurement signal, and generate an error signal based on the difference, and a controller to generate the actuator signal for controlling the gain of the signal path amplifier based on the error signal.

    摘要翻译: 功率控制系统包括用于抑制输入信号中的高频并产生滤波包络信号的参考路径滤波器,参考路径放大器,用于根据增益信号缩放经滤波的输入信号并产生参考信号,信号路径放大器 以放大RF调制信号并产生由致动器信号的增益来缩放的信号路径输出信号,以及功率检测器,用于检测与信号路径输出信号相关联的功率。 该系统包括用于接收,预滤波和将检测到的包络信号转换成测量信号的ADC,以及用于接收参考信号和测量信号的比较器块,并且基于该差产生误差信号,并且控制器 产生用于根据误差信号控制信号路径放大器的增益的致动器信号。

    Circuit arrangement for detection of a locking condition for a phase locked loop, and a method
    46.
    发明授权
    Circuit arrangement for detection of a locking condition for a phase locked loop, and a method 有权
    用于检测锁相环的锁定状态的电路装置及方法

    公开(公告)号:US07443247B2

    公开(公告)日:2008-10-28

    申请号:US11506508

    申请日:2006-08-18

    申请人: Andrea Camuffo

    发明人: Andrea Camuffo

    IPC分类号: H03L7/085

    摘要: A circuit arrangement includes a phase locked loop, having a phase detector on whose output side a phase signal can be tapped off and whose output side is coupled to a charge pump. Furthermore, the phase locked loop includes an oscillator whose input side is coupled to the charge pump and which is coupled at one output for emission of an oscillator signal to a first input of the phase detector. The circuit arrangement further includes a counter whose input side is supplied with an input signal which can be derived from the phase signal, and which is coupled to the output of the oscillator. The counter emits an output signal from the counter as a function of a value which represents a pulse length of the phase signal.

    摘要翻译: 电路装置包括一个锁相环,具有相位检测器,其输出侧的相位信号可以被分接并且其输出侧耦合到电荷泵。 此外,锁相环包括其输入侧耦合到电荷泵并且在一个输出端耦合以将振荡器信号发射到相位检测器的第一输入端的振荡器。 电路装置还包括计数器,其计数器的输入端被提供有可从相位信号导出的输入信号,该输入信号耦合到振荡器的输出端。 计数器根据表示相位信号的脉冲长度的值发射来自计数器的输出信号。

    Apparatus and method for providing amplifier linearity information
    47.
    发明授权
    Apparatus and method for providing amplifier linearity information 有权
    用于提供放大器线性度信息的装置和方法

    公开(公告)号:US08912851B2

    公开(公告)日:2014-12-16

    申请号:US12981735

    申请日:2010-12-30

    摘要: An apparatus for providing a linearity information associated with an amplifier includes an operating state determinator and an evaluator. The operating state determinator is configured to obtain information describing a gain of the amplifier for at least one bias condition of the amplifier. The evaluator is configured to obtain the linearity information based on both the information describing the gain of the amplifier and information about the at least one bias condition of the amplifier using a gain-bias characteristic of the amplifier. A bias circuit including the apparatus for providing the linearity information is also disclosed. A corresponding method for providing the linearity information includes: using the information describing the gain of the amplifier and the information about the at least one bias condition with the gain-bias characteristics to determine a relation of a current operating point described by the information with respect to the gain-bias characteristic; and deriving the linearity information from said relation.

    摘要翻译: 用于提供与放大器相关联的线性度信息的装置包括操作状态确定器和评估器。 操作状态确定器被配置为获得关于放大器的至少一个偏置条件的描述放大器的增益的信息。 评估器被配置为基于描述放大器的增益的信息和关于使用放大器的增益偏置特性的放大器的至少一个偏置条件的信息来获得线性度信息。 还公开了一种包括用于提供线性度信息的装置的偏置电路。 用于提供线性度信息的相应方法包括:使用描述放大器的增益的信息和关于具有增益偏差特性的至少一个偏置条件的信息来确定由信息描述的当前操作点与关于 到增益偏置特性; 并从所述关系导出线性度信息。

    Joint Adaptive Bias Point Adjustment and Digital Pre-Distortion for Power Amplifier
    49.
    发明申请
    Joint Adaptive Bias Point Adjustment and Digital Pre-Distortion for Power Amplifier 有权
    功率放大器的联合自适应偏置点调整和数字预失真

    公开(公告)号:US20120219048A1

    公开(公告)日:2012-08-30

    申请号:US13036758

    申请日:2011-02-28

    IPC分类号: H04L25/03 H04B17/00

    摘要: One embodiment of the present invention relates to a method and apparatus are provided herein for reducing the power consumption of a transmission chain while maintaining an acceptable figure of merit (e.g., linearity). In one embodiment, an adaptive biasing element is configured to perform adaptive biasing to reduce current consumption of a transmission chain by adjusting the operating point of one or more transmission chain elements (e.g., power amplifier, mixer, etc.). However, since adaptive biasing may reduce the linearity of a transmitted signal, its use is limited by the degradation of figure of merit caused by the introduced non-linearities. Accordingly, a pre-distortion element may be configured to perform adaptive digital pre-distortion (DPD) on a transmission chain input signal to account for non-linearities generated through the adaptive biasing, therefore allowing the adaptive biasing to further reduce the current consumption while maintaining an acceptable figure of merit.

    摘要翻译: 本发明的一个实施例涉及一种方法和装置,用于在保持可接受的品质因数(例如线性度)的同时降低传输链的功率消耗。 在一个实施例中,自适应偏置元件被配置为执行自适应偏置以通过调整一个或多个传输链元件(例如,功率放大器,混频器等)的工作点来减小传输链的电流消耗。 然而,由于自适应偏置可以降低发射信号的线性度,所以其使用受到引入的非线性引起的品质因数的劣化的限制。 因此,预失真元件可以被配置为在传输链输入信号上执行自适应数字预失真(DPD),以解决通过自适应偏置产生的非线性,从而允许自适应偏置进一步降低电流消耗,同时 保持可接受的品质因数。

    Apparatus and Method for Providing Amplifier Linearity Information
    50.
    发明申请
    Apparatus and Method for Providing Amplifier Linearity Information 有权
    提供放大器线性信息的装置和方法

    公开(公告)号:US20120169424A1

    公开(公告)日:2012-07-05

    申请号:US12981735

    申请日:2010-12-30

    IPC分类号: H03G3/30

    摘要: An apparatus for providing a linearity information associated with an amplifier includes an operating state determinator and an evaluator. The operating state determinator is configured to obtain information describing a gain of the amplifier for at least one bias condition of the amplifier. The evaluator is configured to obtain the linearity information based on both the information describing the gain of the amplifier and information about the at least one bias condition of the amplifier using a gain-bias characteristic of the amplifier. A bias circuit including the apparatus for providing the linearity information is also disclosed. A corresponding method for providing the linearity information includes: using the information describing the gain of the amplifier and the information about the at least one bias condition with the gain-bias characteristics to determine a relation of a current operating point described by the information with respect to the gain-bias characteristic; and deriving the linearity information from said relation.

    摘要翻译: 用于提供与放大器相关联的线性度信息的装置包括操作状态确定器和评估器。 操作状态确定器被配置为获得关于放大器的至少一个偏置条件的描述放大器的增益的信息。 评估器被配置为基于描述放大器的增益的信息和关于使用放大器的增益偏置特性的放大器的至少一个偏置条件的信息来获得线性度信息。 还公开了一种包括用于提供线性度信息的装置的偏置电路。 用于提供线性度信息的相应方法包括:使用描述放大器的增益的信息和关于具有增益偏差特性的至少一个偏置条件的信息来确定由信息描述的当前操作点与关于 到增益偏置特性; 并从所述关系导出线性度信息。