Power adjustment method and apparatus

    公开(公告)号:US11075659B2

    公开(公告)日:2021-07-27

    申请号:US16991725

    申请日:2020-08-12

    Inventor: Meng Cai Kun Li

    Abstract: This application provides a power adjustment method and apparatus. The method includes obtaining a to-be-output signal, performing first automatic gain control (AGC) processing on the to-be-output signal to obtain the to-be-output signal on which the first AGC processing is performed, and to obtain a gain value of the to-be-output signal. The method also includes performing digital pre-distortion (DPD) processing on the to-be-output signal on which the first AGC processing is performed, to obtain the to-be-output signal on which the DPD processing is performed. The method further includes calculating an output power back-off (OBO) value based on the gain value, adjusting, based on the OBO value, output power of the to-be-output signal on which the DPD processing is performed, and sending, to a signal receive end, the to-be-output signal on which the power adjustment is performed.

    Data Sending and Receiving Method, Apparatus, and System

    公开(公告)号:US20180249466A1

    公开(公告)日:2018-08-30

    申请号:US15964979

    申请日:2018-04-27

    Abstract: Embodiments of the present invention provide a data sending and receiving method, an apparatus, and a system. The method can be executed by a microwave device, which includes: obtaining a control word (CW) and a first antenna-carrier (A×C) from a common public radio interface (CPRI) frame; modulating the CW to obtain in-phase/quadrature (I/Q) data of the CW; determining a first timeslot in which the first A×C does not carry antenna-carrier I/Q data; writing a preset synchronization sequence, first information, and a random number in the first timeslot to generate a second A×C; and combining the second A×C with the I/Q data of the CW to generate a microwave air interface frame, and sending the microwave air interface frame in a time division multiplexing manner.

    INFORMATION PROCESSING METHOD AND APPARATUS
    3.
    发明申请
    INFORMATION PROCESSING METHOD AND APPARATUS 有权
    信息处理方法和装置

    公开(公告)号:US20160112179A1

    公开(公告)日:2016-04-21

    申请号:US14983841

    申请日:2015-12-30

    CPC classification number: H04L5/14 H04L5/0048 H04L7/0033 H04L25/0226

    Abstract: The present invention discloses an information processing method and apparatus, including: obtaining a local to-be-transmitted signal by using a local transmitter, and inserting first pilots and second pilots, where the first pilots are inserted from a first position of the local to-be-transmitted signal, the second pilots are inserted from a second position of the local to-be-transmitted signal; obtaining a local transmit signal; obtaining a peer transmit signal, where the peer transmit signal is sent after third pilots and fourth pilots are inserted, the third pilots are inserted from a third position of the peer transmit signal, the fourth pilots are inserted from a fourth position of the peer transmit signal, the first pilot is orthogonal to the fourth pilot, and the second pilot is orthogonal to the third pilot; and parsing the local transmit signal and the peer transmit signal by using the local receiver.

    Abstract translation: 本发明公开了一种信息处理方法和装置,包括:通过使用本地发射机获得本地发送信号,并插入第一导频和第二导频,其中第一导频从本地的第一位置插入到 所述第二导频从所述本地待发射信号的第二位置插入; 获得本地发送信号; 获取对等体发送信号,其中在第三导频和第四导频插入之后发送对等体发射信号,从对等体发射信号的第三位置插入第三导频,从对等体传输的第四位置插入第四导频 信号,第一导频与第四导频正交,第二导频与第三导频正交; 以及通过使用本地接收机解析本地发送信号和对等体发送信号。

    METHOD AND DEVICE FOR SIGNAL PROCESSING AND APPLIED TO MICROWAVE COMMUNICATION SYSTEM
    4.
    发明申请
    METHOD AND DEVICE FOR SIGNAL PROCESSING AND APPLIED TO MICROWAVE COMMUNICATION SYSTEM 有权
    用于信号处理和应用于微波通信系统的方法和装置

    公开(公告)号:US20130202022A1

    公开(公告)日:2013-08-08

    申请号:US13728876

    申请日:2012-12-27

    Inventor: Meng Cai

    Abstract: A method and a device which are for signal processing and are applied to a microwave communication system are disclosed. The method includes: performing equalization processing on each input signal by using an equalizer so as to obtain an equalized signal corresponding to the each input signal; performing phase estimation on phase noise in the equalized signal to obtain an estimated phase of the phase noise; performing phase rotation on the equalized signal to offset the estimated phase of the phase noise, so as to obtain a phase rotation signal; suppressing residual phase noise in the phase rotation signal by using a phase-locked loop so as to output an error signal and a received signal; and performing an iterative update on a filter coefficient of the equalizer by using the error signal.

    Abstract translation: 公开了一种用于信号处理并应用于微波通信系统的方法和装置。 该方法包括:通过使用均衡器对每个输入信号执行均衡处理,以获得对应于每个输入信号的均衡信号; 对均衡信号中的相位噪声执行相位估计,以获得相位噪声的估计相位; 在均衡信号上执行相位旋转以偏移相位噪声的估计相位,以获得相位旋转信号; 通过使用锁相环来抑制相位旋转信号中的残留相位噪声,以输出误差信号和接收信号; 以及通过使用误差信号对均衡器的滤波器系数执行迭代更新。

    Data sending and receiving method, apparatus, and system

    公开(公告)号:US10582495B2

    公开(公告)日:2020-03-03

    申请号:US15964979

    申请日:2018-04-27

    Abstract: Embodiments of the present invention provide a data sending and receiving method, an apparatus, and a system. The method can be executed by a microwave device, which includes: obtaining a control word (CW) and a first antenna-carrier (A×C) from a common public radio interface (CPRI) frame; modulating the CW to obtain in-phase/quadrature (I/Q) data of the CW; determining a first timeslot in which the first A×C does not carry antenna-carrier I/Q data; writing a preset synchronization sequence, first information, and a random number in the first timeslot to generate a second A×C; and combining the second A×C with the I/Q data of the CW to generate a microwave air interface frame, and sending the microwave air interface frame in a time division multiplexing manner.

    DIGITAL FRONTHAUL DATA TRANSMISSION METHOD, DEVICE, AND SYSTEM

    公开(公告)号:US20180124640A1

    公开(公告)日:2018-05-03

    申请号:US15859018

    申请日:2017-12-29

    Abstract: The present disclosure discloses a digital fronthaul data transmission method, device, and system, which relate to the communications field and improve system performance of a distributed base station. A specific solution is: a first microwave device receives digital fronthaul data; obtains common information and radio signal information from the digital fronthaul data; performs digital QAM on the common information to obtain I/Q data of the common information; generates a microwave air interface frame in a time division multiplexing manner based on the radio signal information and the I/Q data of the common information, where the radio signal information and the I/Q data of the common information are encapsulated in a payload area of the microwave air interface frame, and a pilot in a microwave overhead and the payload area are arranged at a preset interval in an interleaved manner; and sends the microwave air interface frame.

    Information processing method and apparatus

    公开(公告)号:US09887829B2

    公开(公告)日:2018-02-06

    申请号:US14983841

    申请日:2015-12-30

    CPC classification number: H04L5/14 H04L5/0048 H04L7/0033 H04L25/0226

    Abstract: The present invention discloses an information processing method and apparatus, including: obtaining a local to-be-transmitted signal by using a local transmitter, and inserting first pilots and second pilots, where the first pilots are inserted from a first position of the local to-be-transmitted signal, the second pilots are inserted from a second position of the local to-be-transmitted signal; obtaining a local transmit signal; obtaining a peer transmit signal, where the peer transmit signal is sent after third pilots and fourth pilots are inserted, the third pilots are inserted from a third position of the peer transmit signal, the fourth pilots are inserted from a fourth position of the peer transmit signal, the first pilot is orthogonal to the fourth pilot, and the second pilot is orthogonal to the third pilot; and parsing the local transmit signal and the peer transmit signal by using the local receiver.

    Signal correction method and receiving machine
    8.
    发明授权
    Signal correction method and receiving machine 有权
    信号校正方法和接收机

    公开(公告)号:US09525572B2

    公开(公告)日:2016-12-20

    申请号:US14626461

    申请日:2015-02-19

    Abstract: The present invention discloses a signal correction method and a receiving machine, pertaining to the radio communication field. The method includes: acquiring M channels of first signals; performing adaptive processing for each channel of first signals among the M channels of first signals to output M channels of first correction signals; making a decree according to the M channels of first correction signals to obtain M channels of decree results; using a decree result with a same value and with a largest quantity among the M channels of decree results as a feedback signal; receiving M channels of second signals; and separately performing adaptive processing, according to the feedback signal, for each channel of second signals among M channels of second signals to output M channels of second correction signals.

    Abstract translation: 本发明公开了一种无线电通信领域的信号校正方法和接收机。 该方法包括:获取M个信道的第一信号; 对所述第一信号的M个通道中的第一信号的每个信道进行自适应处理,以输出第一校正信号的M个信道; 根据M个通道的第一个校正信号作出判定,以获得M个通道的判定结果; 使用具有相同值并且在M个通道中的最大数量的判定结果作为反馈信号; 接收M个通道的第二个信号; 以及根据所述反馈信号分别对M个信道中的第二信号的每个信道的第二信号进行自适应处理,以输出第二校正信号的M个信道。

    Adaptive Filtering Method and System Based On Error Sub-Band
    9.
    发明申请
    Adaptive Filtering Method and System Based On Error Sub-Band 有权
    基于误差子带的自适应滤波方法和系统

    公开(公告)号:US20150207649A1

    公开(公告)日:2015-07-23

    申请号:US14671810

    申请日:2015-03-27

    Abstract: The present invention discloses an adaptive filtering method and system based on an error sub-band. The present invention includes performing analysis filtering processing on an error signal and an input signal to obtain an error sub-band signal and an input sub-band signal respectively; and performing calculation according to the input sub-band signal and the error sub-band signal to obtain a new adaptive filtering weight, and updating a weight in an adaptive filter.

    Abstract translation: 本发明公开了一种基于误差子带的自适应滤波方法和系统。 本发明包括对误差信号和输入信号执行分析滤波处理,以分别获得误差子带信号和输入子带信号; 并根据输入的子带信号和误差子带信号进行计算,得到新的自适应滤波权重,并更新自适应滤波器中的权重。

    Method and device for signal processing and applied to microwave communication system
    10.
    发明授权
    Method and device for signal processing and applied to microwave communication system 有权
    信号处理方法和装置,应用于微波通信系统

    公开(公告)号:US08798128B2

    公开(公告)日:2014-08-05

    申请号:US13728876

    申请日:2012-12-27

    Inventor: Meng Cai

    Abstract: A method and a device which are for signal processing and are applied to a microwave communication system are disclosed. The method includes: performing equalization processing on each input signal by using an equalizer so as to obtain an equalized signal corresponding to the each input signal; performing phase estimation on phase noise in the equalized signal to obtain an estimated phase of the phase noise; performing phase rotation on the equalized signal to offset the estimated phase of the phase noise, so as to obtain a phase rotation signal; suppressing residual phase noise in the phase rotation signal by using a phase-locked loop so as to output an error signal and a received signal; and performing an iterative update on a filter coefficient of the equalizer by using the error signal.

    Abstract translation: 公开了一种用于信号处理并应用于微波通信系统的方法和装置。 该方法包括:通过使用均衡器对每个输入信号执行均衡处理,以获得对应于每个输入信号的均衡信号; 对均衡信号中的相位噪声执行相位估计,以获得相位噪声的估计相位; 在均衡信号上执行相位旋转以偏移相位噪声的估计相位,以获得相位旋转信号; 通过使用锁相环来抑制相位旋转信号中的残留相位噪声,以输出误差信号和接收信号; 以及通过使用误差信号对均衡器的滤波器系数执行迭代更新。

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