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    SIGNAL GENERATION METHOD, APPARATUS AND SYSTEM
    1.
    发明公开
    SIGNAL GENERATION METHOD, APPARATUS AND SYSTEM 审中-公开

    公开(公告)号：EP4149022A1

    公开(公告)日：2023-03-15

    申请号：EP21820976.5

    申请日：2021-06-02

    申请人： Huawei Technologies Co., Ltd.

    发明人： SHUAI, Songlin ,  YU, Xianbin ,  LU, Zijie ,  CAI, Hua ,  WANG, Guangjian

    IPC分类号： H04B10/50 ,  H04B10/90

    摘要： This application discloses a signal generating method, apparatus, and system. The method includes: performing cyclic electro-optic modulation on a first signal to generate a first optical frequency comb signal, where the first signal is a signal output by a laser source, the first optical frequency comb signal includes a target spectral component, and a frequency of the target spectral component is equal to a sum of or a difference between a frequency of the first signal and a frequency of a target signal; performing first filtering processing on the first optical frequency comb signal to generate the target spectral component; and generating the target signal based on a heterodyne beat frequency of the first signal and the target spectral component. In the method, cyclic electro-optic modulation is performed on the first signal. The first optical frequency comb signal including the target spectral component with relatively high power may be obtained. Further, the target spectral component with the relatively high power may be obtained through filtering. A terahertz wave signal with a relatively high frequency may be obtained based on the heterodyne beat frequency of the first signal and the target spectral component.

    FREQUENCY MIXING CIRCUIT AND METHOD FOR SUPPRESSING LOCAL OSCILLATOR LEAKAGE THEREIN
    4.
    发明公开
    FREQUENCY MIXING CIRCUIT AND METHOD FOR SUPPRESSING LOCAL OSCILLATOR LEAKAGE THEREIN 有权
    FREQUENZMISCHKREISLAUF ZURUNTERDRÜCKUNGVON LOKALOSZILLATOR-LECKAGEN DARIN

    公开(公告)号：EP2685629A1

    公开(公告)日：2014-01-15

    申请号：EP12767408.3

    申请日：2012-03-13

    申请人： Huawei Technologies Co., Ltd.

    发明人： CAI, Hua ,  SHUAI, Songlin ,  HE, Jia ,  ZHANG, Yong

    IPC分类号： H03D7/18 ,  H04B1/30 ,  H03D7/00

    CPC分类号： H03D7/1491 ,  H03D7/00 ,  H03D7/18 ,  H03D2200/0045 ,  H03D2200/009 ,  H04B1/30

    摘要： Embodiments of the present invention disclose a frequency mixing circuit and a method for suppressing local oscillation leakage in the frequency mixing circuit, where a mixed input signal and a local oscillation signal are involved, and local oscillation leakage can be effectively reduced by using a frequency mixing circuit whose structure is simpler and is easier to be implemented. The frequency mixing circuit includes a direct current bias circuit, where the direct current bias circuit includes a direct current bias voltage source used for reducing a local oscillation current. The frequency mixing circuit is mainly applied to frequency mixing, and especially to a case where an intermediate frequency signal is mixed with a local oscillation signal to output a radio frequency signal.

    摘要翻译： 本发明的实施例公开了一种混频电路和一种用于抑制混频电路中局部振荡泄漏的方法，其中涉及混合输入信号和本地振荡信号，并且可以通过使用频率混频来有效地降低局部振荡泄漏 电路的结构更简单，更易于实现。 该混频电路包括直流偏置电路，其中直流偏置电路包括用于减小本地振荡电流的直流偏置电压源。 混频电路主要用于混频，特别是对于将中频信号与本地振荡信号混合以输出射频信号的情况。

    RADIO FREQUENCY SIGNAL LOOPBACK METHOD AND OUTDOOR UNIT
    5.
    发明公开
    RADIO FREQUENCY SIGNAL LOOPBACK METHOD AND OUTDOOR UNIT 有权
    澳大利亚的FUNKFREQUENZSIGNALPRÜFSCHIFIFENVERFAHREN

    公开(公告)号：EP2512037A1

    公开(公告)日：2012-10-17

    申请号：EP11771545.8

    申请日：2011-04-09

    申请人： Huawei Technologies Co., Ltd.

    发明人： MA, Yingdong ,  HUANG, Lin ,  SHUAI, Songlin ,  CAI, Hua

    IPC分类号： H04B1/40

    CPC分类号： H04B1/525 ,  H04W88/085

    摘要： Embodiments of the present invention provide a radio frequency signal loopback method and an outdoor unit. The outdoor unit includes: a transmitting module, a receiving module, a splitter module, a combining module, a duplexer, and an amplifier. The transmitting module is configured to transmit a signal; the splitter module is configured to split the signal transmitted by the transmitting module into two branches, where one branch of the signal is input into the amplifier, and the other branch of the signal is input into the duplexer; the amplifier is configured to amplify the signal from the splitter module; the duplexer is configured to filter the signal from the splitter module and then output the signal to an antenna, and filter an external signal received by the antenna and then output the external signal to the combining module; the combining module is configured to combine the signal output by the amplifier with the signal output by the duplexer, and then output a combined signal to the receiving module; and the receiving module is configured to receive the combined signal output by the combining module. By using the technical solutions provided in the present invention, loopback of a signal at any frequency in a working frequency band and any service mode of the outdoor unit can be implemented.

    摘要翻译： 本发明的实施例提供一种射频信号环回方法和室外单元。 室外机包括：发射模块，接收模块，分路器模块，组合模块，双工器和放大器。 发送模块被配置为发送信号; 分路器模块被配置为将由发射模块发送的信号分成两个分支，其中信号的一个分支被输入到放大器中，并且信号的另一分支被输入到双工器中; 放大器被配置为放大来自分路器模块的信号; 双工器被配置为对来自分离器模块的信号进行滤波，然后将信号输出到天线，并且对天线接收的外部信号进行滤波，然后将外部信号输出到组合模块; 组合模块被配置为将由放大器输出的信号与由双工器输出的信号组合，然后将组合信号输出到接收模块; 并且接收模块被配置为接收由组合模块输出的组合信号。 通过使用本发明提供的技术方案，可以实现工作频带中的任何频率的信号和室外单元的任何服务模式的环回。

    DUPLEXER MALFUNCTION DETECTING METHOD AND APPARATUS
    6.
    发明公开
    DUPLEXER MALFUNCTION DETECTING METHOD AND APPARATUS 审中-公开
    VERFAHREN UND VORRICHTUNG ZUR ERKENNUNG EINER FEHLFUNKTION BEI EINEM DUPLEXER

    公开(公告)号：EP2475104A1

    公开(公告)日：2012-07-11

    申请号：EP09848622.8

    申请日：2009-08-31

    申请人： Huawei Technologies Co., Ltd.

    发明人： HUANG, Lin ,  CAI, Hua ,  SHUAI, Songlin ,  MA, Yingdong ,  TANG, Zhenyu

    IPC分类号： H04B7/00 ,  H04B1/04 ,  H04B17/00

    CPC分类号： H04B1/0466 ,  H04B17/103 ,  H04B17/17

    摘要： A method and a device for duplexer fault detection relating to the microwave communications technology are disclosed in the present invention to solve the problem in the prior art that the performance of duplexers cannot be detected online. A method provided by the an embodiment of the present invention includes: receiving the detection voltage of the return wave signals of the duplexer, the return wave signals being part of the reflection signals generated at the input port of the duplexer by microwave signals that are input at the input port of the duplexer; judging whether the detection voltage of the return wave signals exceeds a reference threshold; and determining that the duplexer is faulty if the detection voltage of the return wave signals exceeds the reference threshold. The present invention can realize the detecting of the duplexer performance online.

    摘要翻译： 在本发明中公开了一种与微波通信技术相关的双工器故障检测的方法和装置，以解决现有技术中不能在线检测双工器的性能的问题。 本发明实施例提供的方法包括：接收双工器的返回波信号的检测电压，返回波信号是由输入的微波信号在双工器的输入端口处产生的反射信号的一部分 在双工器的输入端口; 判断返回波信号的检测电压是否超过参考阈值; 并且如果返回波信号的检测电压超过参考阈值，则确定双工器是故障的。 本发明可以在线实现双工器性能的检测。