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    Method and apparatus for signal processing
    11.
    发明授权
    Method and apparatus for signal processing 有权

    公开(公告)号：US10193684B2

    公开(公告)日：2019-01-29

    申请号：US15347633

    申请日：2016-11-09

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Teyan Chen ,  Sheng Liu ,  Hong Cheng

    IPC: H04L5/14 ,  H04L27/38

    Abstract: The present embodiments relate to the field of communications, and discloses a signal processing method and apparatus, which can implement self-interference cancellation when in-phase quadrature (IQ) imbalance exists in a communications system. An embodiment is acquiring, a digital baseband reference signal, a self-interference reference signal, and a frequency-domain baseband signal. The method also includes obtaining, according to the digital baseband reference signal, a basic reference signal and an image reference signal that are image to each other and estimating an estimated value of a first comprehensive response and an estimated value of a second comprehensive response according to the basic reference signal, the image reference signal, and the self-interference reference signal. Additionally, the method includes calculating a self-interference signal according to the estimated value of the first comprehensive response, the estimated value of the second comprehensive response, the basic reference signal, and the image reference signal, so as to perform self-interference cancellation on the frequency-domain baseband signal.

    Antenna structure and method for manufacturing the same
    14.
    发明授权
    Antenna structure and method for manufacturing the same 有权

    公开(公告)号：US10797408B1

    公开(公告)日：2020-10-06

    申请号：US16388274

    申请日：2019-04-18

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Halim Boutayeb ,  Fayez Hyjazie ,  Teyan Chen ,  Tao Wu ,  Matthew Milyavsky

    IPC: H01Q21/24 ,  H01Q1/48 ,  H04B7/10 ,  H01Q5/385 ,  H01Q21/28 ,  H01Q25/00 ,  H01Q3/24 ,  H01Q9/04

    Abstract: The disclosed structures and methods are directed to antenna systems configured to transmit and receive a wireless signal in and from different directions. An antenna structure comprises a pair of horizontal-polarization (HP) antenna units forming a first parallel-plate waveguide. One of the HP antenna units and a base unit form a second parallel-plate waveguide. The antenna further comprises a pair of vertical-polarization (VP) antenna units each located in one of the first and second parallel-plate waveguides. Each HP antenna unit comprises inverted F antennas (IFAs) configured to radiate a radio-frequency (RF) waves that are horizontally polarized. Each VP antenna unit comprises VP excitation elements configured to radiate the RF waves that are vertically polarized. A method for manufacturing of the antenna structure is also disclosed.

    Method for Transmission and Reception in Parallel on Dual Channels, and Apparatus
    15.
    发明申请
    Method for Transmission and Reception in Parallel on Dual Channels, and Apparatus 审中-公开

    公开(公告)号：US20190342917A1

    公开(公告)日：2019-11-07

    申请号：US16513323

    申请日：2019-07-16

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yun Liu ,  Sheng Liu ,  Teyan Chen

    IPC: H04W74/08 ,  H04W28/20

    Abstract: A method for transmission and reception in parallel on dual channels includes, when detecting that a first channel is occupied by CSMA contention, determining, by an AP, first transmission duration of a first channel data packet; determining, by means of CCA detection, that a second channel is idle, where the second channel is used to transmit a second channel data packet whose transmission direction is opposite to a transmission direction of the first channel; determining, using the first transmission duration, second transmission duration for transmitting the second channel data packet, and transmitting the second channel data packet according to the second transmission duration, where an end time of transmission of the second channel data is not later than an end time of transmission of the first channel data.

    Terminal scheduling method, station, and terminal
    17.
    发明授权
    Terminal scheduling method, station, and terminal 有权

    公开(公告)号：US10154513B2

    公开(公告)日：2018-12-11

    申请号：US15217431

    申请日：2016-07-22

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Hong Cheng ,  Sheng Liu ,  Teyan Chen

    IPC: H04W72/12 ,  H04L1/00 ,  H04L5/00 ,  H04L5/14 ,  H04W72/04

    Abstract: Embodiments of the present invention relate to a terminal scheduling method, a station, and a terminal. The method includes: sending, by a first station, a first notification message to a first terminal that is also in a first service set, where the first notification message is used to instruct the first terminal to send a sounding signal; receiving, by the first station, mutual interference information sent by a second terminal, where the mutual interference information includes a signal parameter value used to represent that signal interference is generated between the second terminal and the first terminal and identifier information used to determine the first terminal that sends the sounding signal, and the mutual interference information is sent if the second terminal obtains the sounding signal by means of listening; and performing, by the first station, scheduling processing on the first terminal and the second terminal according to the signal parameter value and the identifier information.

    Interference cancellation apparatus and method
    18.
    发明授权
    Interference cancellation apparatus and method 有权

    公开(公告)号：US09973224B2

    公开(公告)日：2018-05-15

    申请号：US15388968

    申请日：2016-12-22

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Sheng Liu ,  Teyan Chen

    IPC: H04B1/10 ,  H04L27/26 ,  H04W84/12 ,  H04W84/04 ,  H04B1/525 ,  H04B7/155

    CPC classification number: H04B1/1027 ,  H04B1/10 ,  H04B1/109 ,  H04B1/123 ,  H04B1/525 ,  H04B7/15585 ,  H04L27/26 ,  H04W84/042 ,  H04W84/12

    Abstract: Embodiments of the present invention provide an interference cancellation apparatus and method. The method includes: receiving a radio frequency receive signal by using a main receive antenna; canceling a first-type self-interference component in the radio frequency receive signal according to a radio frequency reference signal, to generate a first processed signal; acquiring the reconstructed self-interference signal according to a self-interference channel parameter and the radio frequency reference signal; canceling a second-type self-interference component in the first processed signal according to the reconstructed self-interference signal to generate a second processed signal; performing down-conversion processing on the second processed signal to generate a third processed signal; performing analog to digital conversion on the third processed signal to generate a digital signal; and acquiring a digital baseband reference signal, and performing self-interference channel estimation according to the digital baseband reference signal and the digital signal to acquire the self-interference channel parameter.

    Adaptive radio-frequency interference cancelling device, method, and receiver
    20.
    发明授权
    Adaptive radio-frequency interference cancelling device, method, and receiver 有权
    自适应射频干扰消除装置，方法和接收机

    公开(公告)号：US09270308B2

    公开(公告)日：2016-02-23

    申请号：US14790958

    申请日：2015-07-02

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Teyan Chen ,  Yinggang Du ,  Sheng Liu

    IPC: H04B1/10

    CPC classification number: H04B1/10 ,  H04B1/109 ,  H04B1/525

    Abstract: The present invention provides an adaptive radio-interference cancelling device and method, a receiver, and a wireless full duplex communication system. The device includes an amplitude phase adjusting module, configured to adjust an amplitude and a phase of a radio-frequency reference signal and output a radio-frequency adjustment signal to enable the radio-frequency adjustment signal to converge to a self-interference signal in a radio-frequency received signal; a subtractor, configured to output a radio-frequency residual signal, where the radio-frequency residual signal is a difference signal between the radio-frequency received signal and the radio-frequency adjustment signal; and a baseband extracting and filtering module, configured to receive the radio-frequency reference signal and the radio-frequency residual signal output by the subtractor, extract baseband signals and perform least mean squares adaptive filtering processing on the baseband signals to obtain an amplitude phase control signal and output to the amplitude phase adjusting module.

    Abstract translation: 本发明提供一种自适应无线电干扰消除装置和方法，接收机和无线全双工通信系统。 该装置包括幅度相位调整模块，被配置为调整射频参考信号的幅度和相位，并输出射频调整信号以使得射频调整信号能够收敛到自身干扰信号 射频接收信号; 减法器，被配置为输出射频残留信号，其中，所述射频残差信号是所述射频接收信号与所述射频调整信号之间的差信号; 以及基带提取和滤波模块，被配置为接收由所述减法器输出的所述射频参考信号和所述射频残余信号，提取基带信号并对所述基带信号执行最小均方自适应滤波处理以获得幅度相位控制 信号并输出​​到幅度相位调整模块。

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