Signal preprocessing for envelope modulators
    3.
    发明公开
    Signal preprocessing for envelope modulators 审中-公开
    SignalvorverarbeitungfürHüllkurvenmodulatoren

    公开(公告)号:EP2365628A1

    公开(公告)日:2011-09-14

    申请号:EP10290118.8

    申请日:2010-03-09

    申请人: Alcatel Lucent

    IPC分类号: H03F1/02

    CPC分类号: H03F1/0222

    摘要: The invention relates to a method for conditioning of an envelope signal (10) to be provided as an input signal to an envelope tracking, ET, modulator, comprising: advancing the envelope signal (10) in the time domain at rising edges thereof for reducing a negative deviation between an output signal (12) of the ET modulator and the envelope signal (10). The invention also relates to a computer program product, to a frontend for a base station, to a base station, and to a communications network adapted for performing the method.

    摘要翻译: 本发明涉及一种用于调节作为输入信号提供给包络跟踪ET,调制器的包络信号(10)的方法,包括:在其上升沿的时域中前进包络信号(10)以减少 ET调制器的输出信号(12)与包络信号(10)之间的负偏差。 本发明还涉及一种计算机程序产品,到基站的前端,到基站以及适于执行该方法的通信网络。

    Switch mode assisted linear amplifier for baseband signal amplification
    5.
    发明公开
    Switch mode assisted linear amplifier for baseband signal amplification 有权
    GetakteterLinearverstärkerfürBasisbandsignalverstärkung

    公开(公告)号:EP2214304A1

    公开(公告)日:2010-08-04

    申请号:EP09001271.7

    申请日:2009-01-30

    IPC分类号: H03F1/02 H03K3/3565

    摘要: The invention relates to a Switch Mode Assisted Linear Amplifier (1), SMALA, for amplification of a baseband input signal (V S ), comprising: a linear stage (2) adapted to perform linear amplification of the baseband input signal (V s ), a hysteretic control stage (7) for generating a pulse-width modulated signal (V sw ) from a current (I lin ) produced by the linear stage (2), and a switching stage (8) adapted to amplify the pulse-width modulated signal (V sw ) to generate a further current (I sw ) which is added to the current (I lin ) of the linear stage (2). The hysteretic control stage (7) comprises a high-precision Schmitt trigger (7b) with two high-speed comparators, preferably having a rise time of less than ten nanoseconds, and with a RS flip-flop for generating a pulse-width modulated signal (V sw ) being well-defined over the entire amplified baseband frequency range.

    摘要翻译: 本发明涉及用于放大基带输入信号(VS)的开关模式辅助线性放大器(1),SMALA,包括:适于执行基带输入信号(V s)的线性放大的线性级(2) 用于从由线性级(2)产生的电流(I lin)产生脉冲宽度调制信号(V sw)的迟滞控制级(7)和适于放大脉冲宽度调制的切换级(8) 信号(V sw)以产生添加到线性级(2)的当前(I lin)的另外的电流(I sw)。 迟滞控制级(7)包括具有两个高速比较器的高精度施密特触发器(7b),优选地具有小于10纳秒的上升时间,以及用于产生脉冲宽度调制信号的RS触发器 (V sw)在整个放大的基带频率范围内被明确定义。

    Envelope tracking arrangement for improved backoff operation
    7.
    发明公开
    Envelope tracking arrangement for improved backoff operation 审中-公开
    Hüllkurven-Nachführungsanordnungzum动词desserten Back-Bet-Betrieb

    公开(公告)号:EP2357725A1

    公开(公告)日:2011-08-17

    申请号:EP10290077.6

    申请日:2010-02-17

    申请人: Alcatel Lucent

    摘要: The invention relates to an envelope tracking arrangement (1), comprising: at least two power transistors (5a, 5b) for amplification of an RF signal (2), and a modulator (8) for generating a modulated supply voltage M for the power transistors (5a, 5b), wherein the envelope tracking arrangement (1) is adapted to selectively provide the modulated supply voltage (V) to one or more of the power transistors (5a, 5b) based on a relation between a required output power and an overall maximum output power of the power transistors (5a, 5b). The invention also relates to a base station (16) and to a wireless communications network (18) comprising such an envelope tracking arrangement (1), as well as to a corresponding method.

    摘要翻译: 本发明涉及一种包络跟踪装置(1),包括:用于放大RF信号(2)的至少两个功率晶体管(5a,5b);以及用于产生用于功率的调制电源电压M的调制器(8) 晶体管(5a,5b),其中所述包络跟踪装置(1)适于基于所需输出功率与所述功率晶体管(5a,5b)之间的关系选择性地将调制供电电压(V)提供给所述功率晶体管 功率晶体管(5a,5b)的总体最大输出功率。 本发明还涉及基站(16)以及包括这种包络跟踪装置(1)的无线通信网络(18)以及相应的方法。

    Envelope tracking RF power amplifier unit and method for power amplification of an RF signal
    8.
    发明公开
    Envelope tracking RF power amplifier unit and method for power amplification of an RF signal 有权
    用包络跟踪和用于高频信号的功率放大方法的高频功率放大器

    公开(公告)号:EP2293433A1

    公开(公告)日:2011-03-09

    申请号:EP09169181.6

    申请日:2009-09-01

    申请人: Alcatel Lucent

    IPC分类号: H03F1/02 H03F1/56

    CPC分类号: H03F1/0222 H03F1/56

    摘要: The present invention relates to an envelope tracking RF power amplifier unit (80), comprising: an RF power transistor unit (20) for amplification of an RF input signal (RF in), and an envelope tracking modulator (100) for feeding a supply voltage (Drain supply) to the RF power transistor unit (20), wherein the RF power transistor unit (20), preferably also the envelope tracking modulator (100), is unpackaged, and wherein the envelope tracking modulator (100) and the RF power transistor unit (20) are arranged on a common circuit board, in particular on an common RF line card (120). The invention also relates to a base station (300) comprising at least one envelope tracking RF power amplifier unit (80), to a communication network (400) comprising at least one such RF base station, and to a method for power amplification of an RF input signal (RF in). The benefit of this approach is that parasitics caused by a packaged RF power amplifier circuit may be dispensed with, thus allowing to improve overall envelope tracking performance and, possibly, to achieve an improved feeding of a driver transistor stage and of a final transistor stage of the RF power transistor unit by the same modulator (100).

    摘要翻译: 本发明涉及一种包络跟踪射频功放单元(80),包括:RF功率晶体管单元(20),用于将RF输入信号(RF IN),和包络跟踪调制器(100)的放大供给供给 电压(漏极供给)到RF功率晶体管单元(20)worin RF功率晶体管单元(20),所以优选的包络跟踪调制器(100)是未封装的,并且worin包络跟踪调制器(100)和RF 功率晶体管单元(20)被布置在同一电路板上,特别是在以公共RF线路卡(120)。 因此本发明涉及到一个基站(300),包括至少一个包络跟踪射频功放单元(80)到包括至少一个RF搜索基站的通信网络(400),并为一个功率放大的方法 RF输入信号(RF IN)。 这种方法的好处是没有通过一个封装的RF功率放大器电路引起的寄生效应可以与,从而允许以改善整体包络跟踪性能,并且可能实现改进的驱动器晶体管级的进料和最终晶体管阶段所分配 由相同的调制器(100)的RF功率晶体管单元。

    Control unit for a power amplifier and method of operating a control unit for a power amplifier
    10.
    发明公开
    Control unit for a power amplifier and method of operating a control unit for a power amplifier 有权
    用于操作控制单元,用于功率放大器的功率放大器和方法控制单元

    公开(公告)号:EP2442440A1

    公开(公告)日:2012-04-18

    申请号:EP10290550.2

    申请日:2010-10-13

    申请人: Alcatel Lucent

    IPC分类号: H03F1/02

    CPC分类号: H03F1/02

    摘要: The invention relates to a method of operating a control unit (100) for controlling an operation of a power amplifier (PA), wherein said power amplifier (PA) is configured to amplify a radio frequency, RF, signal (S RF ) that is obtained from at least two input signals (S1, S2), wherein a control signal (CTRL) for influencing a supply voltage (Vsup) of said power amplifier (PA) is determined by digital signal processing means (DSP) of said control unit (100) depending on said at least two input signals (S1, S2).

    摘要翻译: 本发明涉及一种用于在功率放大器(PA)的手术控制操作的控制单元(100)的方法,worin所述功率放大器(PA)被配置成放大射频,RF,信号(S RF)所做的是 从至少两个输入信号(S1,S2),用于影响电源电压所述功率放大器(PA)的(V SUP)worin的控制信号(CTRL)获得的确定性开采通过所述控制单元的数字信号处理装置(DSP)( 100)依赖于所述至少两个输入信号(S1,S2)。