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    Method and system for wireless data communication
    1.
    发明授权
    Method and system for wireless data communication 有权
    无线数据通信方法与系统

    公开(公告)号：US09479826B2

    公开(公告)日：2016-10-25

    申请号：US13440247

    申请日：2012-04-05

    Applicant: Yiyan Wu ,  Bo Rong ,  Gilles Gagnon ,  Khalil Salehian ,  Sébastien Laflèche ,  Charles Nadeau ,  Benoit Ledoux ,  Robert Gagnon ,  Douglas Prendergast

    Inventor： Yiyan Wu ,  Bo Rong ,  Gilles Gagnon ,  Khalil Salehian ,  Sébastien Laflèche ,  Charles Nadeau ,  Benoit Ledoux ,  Robert Gagnon ,  Douglas Prendergast

    IPC: H04J3/10 ,  H04N21/438 ,  H04L5/04 ,  H04N21/2383 ,  H04N21/43 ,  H04N21/61 ,  H04L27/26

    CPC classification number: H04N21/4382 ,  H04L5/04 ,  H04L27/2601 ,  H04N21/2383 ,  H04N21/4302 ,  H04N21/6112 ,  H04N21/6131

    Abstract: A system has a first transmitter for transmitting a first wireless signal within a first frequency. A second transmitter is for transmitting a second wireless signal with overlapping frequency. The first transmitter and the second transmitter are disposed sufficiently proximate to another such that the wireless signals substantially interfere resulting in a combined wireless signal with negative SNR for each of the first wireless signal and the second wireless signal, the negative SNR being a result of at least the other of the first wireless signal and the second wireless signal. A receiver is located for receiving a received wireless signal comprising substantially interfering encoded data signals having negative SNR. The receiver is for selecting from the substantially interfering encoded data signals a signal of interest and for decoding said signal of interest relative to at least the other substantially interfering data signal within the received wireless signal.

    Abstract translation: 系统具有用于在第一频率内发射第一无线信号的第一发射机。 第二发射机用于发射具有重叠频率的第二无线信号。 第一发射机和第二发射机被充分地邻近另一发射机设置，使得无线信号基本上干扰，导致第一无线信号和第二无线信号中的每一个的负SNR的组合无线信号，负SNR是由 最小的第一无线信号和第二无线信号中的另一个。 定位接收机用于接收包含具有负SNR的基本上干扰的编码数据信号的接收的无线信号。 接收机用于从基本上干扰的编码数据信号中选择感兴趣的信号，并且用于相对于所接收的无线信号中的至少另一个基本上干扰的数据信号来解码感兴趣的信号。

    SELF-INTERFERENCE CANCELLATION IN RF TRANSCEIVERS
    2.
    发明公开
    SELF-INTERFERENCE CANCELLATION IN RF TRANSCEIVERS 审中-公开

    公开(公告)号：US20230403041A1

    公开(公告)日：2023-12-14

    申请号：US18128849

    申请日：2023-03-30

    Applicant: Zhihong Hunter Hong ,  Liang ZHANG ,  Wei LI ,  Yiyan WU ,  Sébastien LAFLÈCHE ,  Douglas PRENDERGAST

    Inventor： Zhihong Hunter Hong ,  Liang ZHANG ,  Wei LI ,  Yiyan WU ,  Sébastien LAFLÈCHE ,  Douglas PRENDERGAST

    IPC: H04B1/04 ,  H04B1/10 ,  H04L25/08

    CPC classification number: H04B1/0483 ,  H04B1/1018 ,  H04L25/085

    Abstract: An RF transceiver includes an RF transmitter coupled to a broadcast antenna, an RF receiver coupled to a receiving antenna, and a communication channel to provide an RF reference signal from the transmitter to the receiver to assist in canceling a transmitter-induced interference signal at the receiver. A digital processor of the receiver is configured for adaptive filtering the RF reference signal in the frequency domain to estimate the spectrum of the interference signal, and estimating a spectrum of a remotely-transmitted signal based on the estimated interference spectrum and a spectrum of a received signal from the receiving antenna. The filtering includes estimating frequency-domain filter weights based, at least, on spectra of the received and reference signals, and de-noising of the estimated filter weights. The interference cancellation may be iteratively improved using a re-modulated feedback from a demodulator and/or a decoder in the signal processing chain of the receiver.

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