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    FRONT-END MODULE AND COUPLING COMPENSATION FOR CLOSED-LOOP DIGITAL PRE-DISTORTION SYSTEM
    5.
    发明公开
    FRONT-END MODULE AND COUPLING COMPENSATION FOR CLOSED-LOOP DIGITAL PRE-DISTORTION SYSTEM 审中-公开
    输入模块和耦合补偿FOR A VORENTZERRUNGSSYSTEM闭环

    公开(公告)号：EP3116123A1

    公开(公告)日：2017-01-11

    申请号：EP16151877.4

    申请日：2016-01-19

    申请人： MediaTek, Inc

    发明人： CHEE, YuenHui ,  SONG, Fei ,  WANG, James ,  MATSUURA, Toru ,  SHANA'A, Osama K A ,  LU, Chiyuan

    IPC分类号： H03F1/32 ,  H04B1/40 ,  H04L25/08 ,  H04L27/00 ,  H04L27/36 ,  H03F3/20 ,  H03F3/189

    CPC分类号： H04L27/0002 ,  H03F1/0205 ,  H03F1/3241 ,  H03F1/3247 ,  H03F3/189 ,  H03F3/19 ,  H03F3/20 ,  H03F3/245 ,  H03F2200/294 ,  H03F2200/451 ,  H03F2201/3236 ,  H04B1/0475 ,  H04B1/40 ,  H04B2001/0425 ,  H04L25/08 ,  H04L27/36 ,  H04L27/368

    摘要： Examples of front-end modules, apparatuses and methods for coupling compensation in a closed-loop digital pre-distortion (DPD) system are described. The closed-loop DPD circuit (1500) may include a PA (1510) and a loopback path. The PA (1510) may receive a PA input signal and amplify the PA input signal to provide a PA output signal proportional to a product of the PA input signal and a gain of the PA (1510). The loopback path may receive the PA output signal to output a loopback signal. A forward coupling and a backward coupling may exist between the PA input signal and an output of the loopback path. The output of the loopback path may be proportional to a product of the PA output signal and a gain of the loopback path. The loopback path may include a coupling cancellation mechanism (1530) configured to cancel couplings between the PA input signal and the loopback signal.

    摘要翻译： 的前端模块，装置和一种用于在闭环数字预失真（DPD）系统耦合补偿的方法的实例进行说明。 闭环DPD电路（1500）可包括PA（1510）和环回路径，PA（1510）可接收PA输入信号并放大所述PA的输入信号，以提供一个PA输出信号正比于产品 PA输入信号和PA的增益（1510）。 回送路径可以接收PA输出信号，以输出一个信号环回。 正向耦合和反向耦合可以在PA的输入信号之间，并回送路径的输出存在。回送路径的输出可以是正比于PA的输出信号的乘积和回送路径的增益。回送路径 可以包括被配置以取消PA输入信号和所述环回信号之间的耦合的耦合解除机构（1530）。

    TRANSMITTER, RECEIVER AND RADIO FREQUENCY RECEIVING/TRANSMITTING METHOD
    8.
    发明公开
    TRANSMITTER, RECEIVER AND RADIO FREQUENCY RECEIVING/TRANSMITTING METHOD 有权
    发射机，接收机和射频接收/发射方法

    公开(公告)号：EP2906000A1

    公开(公告)日：2015-08-12

    申请号：EP12887608.3

    申请日：2012-10-31

    申请人： Huawei Technologies Co., Ltd.

    发明人： LUO, Xun ,  MA, Jun

    IPC分类号： H04W52/02 ,  H04B1/04 ,  H04B1/16

    CPC分类号： H04L27/36 ,  H03F3/24 ,  H04B1/04 ,  H04B1/40 ,  H04B2001/0408 ,  H04L27/0002 ,  H04L27/38

    摘要： The present invention discloses a transmitter, a receiver, and a method for receiving and transmitting a radio frequency signal, and relates to the field of radio communications technologies, which can perform carrier recovery and generation at a front end of a radio frequency circuit, thereby reducing a running cost of a baseband chip. The method includes: generating, by an amplitude discriminator/phase detector according to an intermediate-frequency analog signal, a signal amplitude pulse signal/signal phase pulse signal that is not corrected; generating, by a bit error matrix corrector, an amplitude/phase correction control signal; correcting, by the amplitude discriminator/phase detector, the signal amplitude pulse signal/signal phase pulse signal according to the amplitude/phase correction control signal; and converting, by an amplitude code generator/phase code generator, a corrected pulse signal into a corresponding digital code. The present invention is applicable to receiving/transmitting a radio frequency signal.

    摘要翻译： 本发明公开了一种用于接收和发射射频信号的发射机，接收机和方法，涉及无线电通信技术领域，其能够在射频电路的前端执行载波恢复和产生， 降低了基带芯片的运行成本。 该方法包括：由幅度鉴别器/相位检测器根据中频模拟信号生成未被校正的信号幅度脉冲信号/信号相位脉冲信号; 由位误差矩阵校正器产生振幅/相位校正控制信号; 由幅度鉴别器/相位检测器根据幅度/相位校正控制信号校正信号幅度脉冲信号/信号相位脉冲信号; 并且由幅度码发生器/相位码发生器将校正的脉冲信号转换为相应的数字码。 本发明适用于接收/发送射频信号。

    RADIO COMMUNICATION SYSTEM RECEIVER AND DIVERSITY COMBINING METHOD THEREFOR
    9.
    发明公开
    RADIO COMMUNICATION SYSTEM RECEIVER AND DIVERSITY COMBINING METHOD THEREFOR 审中-公开
    FUNKKOMMUNIKATIONSSYSTEMEMPFÄNGERUNDDIVERSITÄTSKOMBINATIONSVERFAHRENDAFÜR

    公开(公告)号：EP2899898A1

    公开(公告)日：2015-07-29

    申请号：EP13838973.9

    申请日：2013-09-17

    申请人： ZTE Corporation

    发明人： HOU, Xiaohui

    IPC分类号： H04B7/08

    CPC分类号： H04L25/03 ,  H04B7/08 ,  H04B7/0857 ,  H04B7/10 ,  H04L27/0002 ,  H04L27/265

    摘要： A diversity combining method applied by a receiver in a wireless communication system is provided, including: acquiring baseband signals of receiving channels corresponding to multiple receiving antennas, and combining multiple acquired baseband signals according to a Maximal-Ratio Combining (MRC) principle at an intermediate frequency and/or within an equalizer and/or after the equalizer. Further a receiver in a wireless communication system is provided. By means of the technical solutions of the disclosure, it is possible to improve a demodulation threshold and the demodulation sensitivity of a microwave system.

    摘要翻译： 提供了一种由无线通信系统中的接收机应用的分集组合方法，包括：获取与多个接收天线相对应的接收信道的基带信号，并根据中间值的最大比组合（MRC）原理组合多个获取的基带信号 频率和/或均衡器内和/或均衡器之后。 此外，还提供了无线通信系统中的接收机。 通过本公开的技术方案，可以提高微波系统的解调阈值和解调灵敏度。