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    Modulator, modulation system, and method for implementing higher order modulation
    3.
    发明授权
    Modulator, modulation system, and method for implementing higher order modulation 有权

    公开(公告)号：US10270632B2

    公开(公告)日：2019-04-23

    申请号：US15974489

    申请日：2018-05-08

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Lei Liu ,  Yuanyuan Fang ,  Shupeng Deng ,  Chi Yan Wong

    IPC: H04B10/50 ,  H04L27/20 ,  G02F1/00 ,  H04B10/588 ,  H04B10/25 ,  H04L27/00 ,  H04L27/26 ,  G02F1/225

    Abstract: Embodiments of the present disclosure disclose a modulator, including: a first modulation module, configured to: receive first to-be-modulated data, and output a first transmission curve according to the first to-be-modulated data; a second modulation module, configured to: receive second to-be-modulated data, and output a second transmission curve according to the second to-be-modulated data, where a period of the second transmission curve is half of a period of the first transmission curve; and a combination module, configured to perform phase superposition on the first transmission curve and the second transmission curve, to obtain a combined linear result. In addition, this solution further provides a modulation system and a method for implementing higher order modulation, so that a linear result that can be modulated can be obtained by controlling a superposition ratio between transmission curves, to implement linear curve transmission.

    CHANNEL EQUALIZATION METHOD AND APPARATUS, AND RECEIVER
    4.
    发明申请
    CHANNEL EQUALIZATION METHOD AND APPARATUS, AND RECEIVER 有权
    渠道均衡方法和装置，以及接收器

    公开(公告)号：US20160050087A1

    公开(公告)日：2016-02-18

    申请号：US14922861

    申请日：2015-10-26

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yuanyuan Fang ,  Liangchuan Li

    IPC: H04L25/03

    CPC classification number: H04L25/0391 ,  H04L5/0048 ,  H04L25/0256 ,  H04L25/03006

    Abstract: Embodiments of the present invention provide a channel equalization method and apparatus, and a receiver. The method includes: acquiring a channel transfer matrix according to a training sequence sent by a transmit end; acquiring an amplitude response matrix of the channel transfer matrix, and acquiring, according to the amplitude response matrix, a window length of a sliding window that is required for performing noise filtering on the channel transfer matrix; and performing noise filtering on the channel transfer matrix according to the window length of the sliding window, and performing, according to a channel transfer matrix that is obtained by means of noise filtering, channel equalization on a data payload sent by the transmit end. The channel equalization method and apparatus, and a receiver provided in the embodiments of the present invention may implement adaptive channel equalization.

    Abstract translation: 本发明的实施例提供一种信道均衡方法和装置以及接收机。 该方法包括：根据由发送端发送的训练序列获取信道传送矩阵; 获取所述信道传输矩阵的幅度响应矩阵，并且根据所述幅度响应矩阵，获取所述信道传输矩阵上执行噪声滤波所需的滑动窗口的窗口长度; 以及根据所述滑动窗口的窗口长度对所述信道传送矩阵执行噪声滤波，并且根据通过噪声滤波获得的信道传输矩阵对由所述发送端发送的数据有效载荷进行信道均衡。 在本发明的实施例中提供的信道均衡方法和装置以及接收机可以实现自适应信道均衡。

    Transmitter, receiving device, and frequency offset correction method
    5.
    发明授权
    Transmitter, receiving device, and frequency offset correction method 有权

    公开(公告)号：US10164763B2

    公开(公告)日：2018-12-25

    申请号：US15351131

    申请日：2016-11-14

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yuanyuan Fang ,  Jialong Shuai ,  Qiang Zhang

    IPC: H04B10/572 ,  H04B10/2507 ,  H04L7/00 ,  H04B10/50 ,  H04B10/548

    Abstract: According to a transmitter, a receiving device, and a frequency offset correction method that are provided in embodiments of the present invention, after a power parameter of a pilot in an OFDM signal received by a receiving device is detected, a frequency offset value used to indicate a degree and a direction that are of a difference that is between a center frequency of a filter and a center frequency of a laser and that deviates from a first threshold is determined according to the power parameter of the pilot, and then the receiving device corrects the difference between the center frequency of the laser and the center frequency of the filter according to the determined frequency offset value, thereby implementing frequency offset correction of an OFDM system.

    Channel equalization method and apparatus, and receiver
    6.
    发明授权
    Channel equalization method and apparatus, and receiver 有权
    信道均衡方法及装置及接收机

    公开(公告)号：US09432226B2

    公开(公告)日：2016-08-30

    申请号：US14922861

    申请日：2015-10-26

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yuanyuan Fang ,  Liangchuan Li

    IPC: H04L25/03 ,  H04L25/02 ,  H04L5/00

    CPC classification number: H04L25/0391 ,  H04L5/0048 ,  H04L25/0256 ,  H04L25/03006

    Abstract: Embodiments of the present invention provide a channel equalization method and apparatus, and a receiver. The method includes: acquiring a channel transfer matrix according to a training sequence sent by a transmit end; acquiring an amplitude response matrix of the channel transfer matrix, and acquiring, according to the amplitude response matrix, a window length of a sliding window that is required for performing noise filtering on the channel transfer matrix; and performing noise filtering on the channel transfer matrix according to the window length of the sliding window, and performing, according to a channel transfer matrix that is obtained by means of noise filtering, channel equalization on a data payload sent by the transmit end. The channel equalization method and apparatus, and a receiver provided in the embodiments of the present invention may implement adaptive channel equalization.

    Abstract translation: 本发明的实施例提供一种信道均衡方法和装置以及接收机。 该方法包括：根据由发送端发送的训练序列获取信道传送矩阵; 获取所述信道传输矩阵的幅度响应矩阵，并且根据所述幅度响应矩阵获取所述信道传输矩阵上执行噪声滤波所需的滑动窗口的窗口长度; 以及根据所述滑动窗口的窗口长度对所述信道传送矩阵执行噪声滤波，并且根据通过噪声滤波获得的信道传输矩阵对由所述发送端发送的数据有效载荷进行信道均衡。 在本发明的实施例中提供的信道均衡方法和装置以及接收机可以实现自适应信道均衡。

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