Wireless communication unit and power control system thereof
    1.
    发明公开
    Wireless communication unit and power control system thereof 有权
    Schnurlose Kommunikationseinheit und Leistungsregelungssystem derselben

    公开(公告)号:EP2296412A1

    公开(公告)日:2011-03-16

    申请号:EP10174121.3

    申请日:2004-12-23

    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。

    Wireless communication unit and power control system thereof
    2.
    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

    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。

    Radioempfänger
    7.
    发明公开
    Radioempfänger 有权
    Niedrigzwischenfrequenzempfänger

    公开(公告)号:EP1551099A1

    公开(公告)日:2005-07-06

    申请号:EP03293343.4

    申请日:2003-12-29

    IPC分类号: H03D3/00

    摘要: A low Intermediate Frequency ('IF') radio receiver comprises an IF local oscillator (3, 5, 19) for producing I and Q IF local oscillator signal components in phase quadrature, I and Q mixer channels (4, 6) for mixing the input signal with the I and Q IF local oscillator signal components to produce I and Q IF signal components. The IF local oscillator (3, 5, 19) includes frequency alternation means (20) for causing the IF local oscillator frequency to alternate between first and second values, one of which is greater and the other smaller than the desired carrier frequency of the input signal so as to reduce the effect of adjacent and alternate interferers.
    The phase of the baseband local oscillator (12, 13) is alternated in synchronism with the alternation of the IF local oscillator frequency.

    摘要翻译: 低中频(“IF”)无线电接收机包括用于在相位正交I和Q混频器通道(4,6)中产生I和Q IF本地振荡器信号分量的IF本地振荡器(3,5,19),用于混合 输入信号与I和Q IF本地振荡器信号分量产生I和Q IF信号分量。 IF本地振荡器(3,5,19)包括频率交替装置(20),用于使IF本地振荡器频率在第一和第二值之间交替,其中一个值较大,另一个小于输入的期望载波频率 信号,以减少相邻和交替干扰源的影响。 基带本地振荡器(12,13)的相位与IF本地振荡器频率的交替同步地交替。