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    Wireless communication unit and power control system thereof
    11.
    发明公开
    Wireless communication unit and power control system thereof 有权
    Drahtlose Kommunikationseinheit und Leistungsregelungssystemdafür

    公开(公告)号：EP2259640A2

    公开(公告)日：2010-12-08

    申请号：EP10174119.7

    申请日：2004-12-23

    申请人： Freescale Semiconductor, Inc.

    发明人： Pratt, Patrick ,  Milyard, Michael ,  Schwartz, Daniel B ,  Warder, Philip C

    IPC分类号： H04W52/52 ,  H03G3/30

    CPC分类号： H04W52/52 ,  H03G3/3047

    摘要： A wireless communication unit (100) comprises a transmitter having an analogue feedback power control loop having a power control function (132) arranged to set an output power level of the transmitter. The power control function (132) comprises a predictor sub-system (200) arranged to reduce sensitivity to loop latency of the analogue feedback power control loop.
    The use of a predictor sub-system provides reduced sensitivity to loop latency, gain variations and delay.

    摘要翻译： 无线通信单元（100）包括具有模拟反馈功率控制环路的发射机，该模拟反馈功率控制环路具有设置成设置发射机的输出功率电平的功率控制功能（132）。 功率控制功能（132）包括预测器子系统（200），其被布置为降低对模拟反馈功率控制回路的环路延迟的灵敏度。 使用预测器子系统可以降低环路延迟，增益变化和延迟的灵敏度。

    RF POWER AMPLIFIER CONTROLLER CIRCUIT
    20.
    发明公开
    RF POWER AMPLIFIER CONTROLLER CIRCUIT 审中-公开
    控制电路射频功率放大器

    公开(公告)号：EP1982385A2

    公开(公告)日：2008-10-22

    申请号：EP07763206.5

    申请日：2007-01-30

    申请人： Quantance, Inc.

    发明人： DROGI, Serge, Francois ,  VINAYAK, Vikas

    IPC分类号： H01Q11/12

    CPC分类号： H03G3/3042 ,  H03F1/0205 ,  H03F1/0216 ,  H03F1/0227 ,  H03F1/0238 ,  H03F1/3247 ,  H03F2200/451 ,  H03F2200/78 ,  H03F2200/99 ,  H03G3/004 ,  H03G3/3047

    摘要： A power amplifier controller circuit controls a power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the input signal and an attenuated amplitude of the output signal. The power amplifier controller circuit comprises an amplitude control loop and a phase control loop. The amplitude control loop adjusts the supply voltage to the power amplifier based upon the amplitude correction signal. The phase control loop adjusts the phase of the input signal based upon a phase error signal indicating a phase difference between phases of the input signal and the output signal to reduce phase distortion generated by the power amplifier. The amplitude control loop and the phase control loop may also adjust the gain and/or phase of the power amplifier, respectively.