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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.

    INTERFERENCE CANCELLATION METHODS AND APPARATUS
    2.
    发明公开
    INTERFERENCE CANCELLATION METHODS AND APPARATUS 审中-公开

    公开(公告)号：EP4002724A1

    公开(公告)日：2022-05-25

    申请号：EP21209646.5

    申请日：2016-12-13

    申请人： Genxcomm, Inc.

    发明人： JAIN, Hardik ,  VISHWANATH, Sriram

    IPC分类号： H04B10/90

    摘要： Methods and apparatus for interference cancelation in a radio frequency communications device are described. In various embodiments a signal to be transmitted in converted into an optical signal and processed using an optical filter assembly including one or more optical filters to generate an optical interference cancelation signal. The optical interference cancelation signal is converted into an analog radio frequency interference cancelation signal using an optical to electrical converter prior to the analog radio frequency interference cancelation signal being combined with a received signal to cancel interference, e.g., self interference. The optical filter assembly can include a large number of taps, e.g., 30, 50, 100 or more. Each tap may be implemented as a separate optical filter or series of optical filters. Delays and/or gain of the optical filters can be controlled dynamically based on channel estimates which may change due to changes in the environment and/or communications device position.

    MULTIMEDIA STREAM TRANSMISSION METHOD AND SYSTEM BASED ON TERAHERTZ WIRELESS COMMUNICATION
    6.
    发明公开
    MULTIMEDIA STREAM TRANSMISSION METHOD AND SYSTEM BASED ON TERAHERTZ WIRELESS COMMUNICATION 审中-公开
    基于无线通信太赫兹多媒体流传输方法和系统

    公开(公告)号：EP2846481A4

    公开(公告)日：2016-02-24

    申请号：EP13781384

    申请日：2013-02-28

    申请人： HUIZHOU TCL MOBILE COMM CO LTD

    发明人： WANG KAILONG ,  LI XIANGLAI ,  GE QI

    IPC分类号： H04B10/90

    CPC分类号： H04N21/2383 ,  H04B10/90

    摘要： The present invention provides a multimedia stream transmission method and a system based on terahertz wireless communication. A media providing device sends a multimedia stream through a terahertz wireless signal, and a media receiving device receives the multimedia stream in real time, so as to achieve the real-time broadcast and transmission of the multimedia stream. Through the transmission mode based on terahertz wireless communication, the present invention generally improves the transmission rate and quality of the multimedia stream, and enhances the quality of a picture displayed by the multimedia stream.

    SIGNAL RECEPTION DEVICE AND METHOD BASED ON MICROWAVE PHOTON TECHNOLOGY
    7.
    发明公开
    SIGNAL RECEPTION DEVICE AND METHOD BASED ON MICROWAVE PHOTON TECHNOLOGY 有权
    微波技术为基础的光子接收装置与方法

    公开(公告)号：EP2506456A4

    公开(公告)日：2012-10-03

    申请号：EP11750208

    申请日：2011-04-20

    申请人： HUAWEI TECH CO LTD

    发明人： WAN WENTONG ,  LI KUN ,  DONG LIMIN ,  YANG YANFU ,  LV CHAO

    IPC分类号： H04B1/40 ,  H04B10/2575 ,  H04B10/90

    CPC分类号： H04B10/60 ,  H04B1/28 ,  H04B10/2575 ,  H04B10/90

    摘要： In the field of communications, a signal receiving device and a signal receiving method based on microwave photonics technologies are provided. By adopting quadrature demodulation, a structure of the signal receiving device is simplified, the demodulation of a high-order modulation signal is implemented, and a microwave carrier frequency is flexibly adjusted. The signal receiving device based on microwave photonics technologies according to an embodiment of the present invention includes a signal generation module, a first Mach-Zehnder modulator, a dispersion module, a second Mach-Zehnder modulator, and a signal conversion module.

    AN APPARATUS AND ASSOCIATED METHODS FOR WIRELESS COMMUNICATION
    9.
    发明公开
    AN APPARATUS AND ASSOCIATED METHODS FOR WIRELESS COMMUNICATION 审中-公开
    VORRICHTUNG UNDZUGEHÖRIGESVERFAHRENFÜRDRAHTLOSE KOMMUNIKATION

    公开(公告)号：EP3084989A4

    公开(公告)日：2017-08-16

    申请号：EP13899652

    申请日：2013-12-16

    申请人： NOKIA TECHNOLOGIES OY

    发明人： VOUTILAINEN MARTTI KALEVI

    IPC分类号： H04B10/50 ,  B82Y10/00 ,  F28F13/06 ,  F28F21/02 ,  G10K11/04 ,  G10K15/04 ,  H01L27/30 ,  H01L31/00 ,  H04B10/90

    CPC分类号： G10K11/04 ,  G10K15/046 ,  H04B10/90

    摘要： An apparatus comprising: a phononic filter configured to filter received phonons having a particular range of frequencies and output filtered phonons having frequencies within a sub-range of the particular range of frequencies; a phononic waveguide coupled to the phononic filter and configured to channel the filtered phonons away from the phononic filter; and at least one metallic carbon nanotube bundle coupled at one end to the phononic waveguide to receive channelled filtered phonons, wherein the at least one bundle has a length to exhibit surface plasmon resonance at a frequency corresponding to the frequency of the channelled filtered phonons to convert the channelled filtered phonons to heat wave signals for transmission. Also, a system comprising the apparatus and a receiver configured to receive heat transmitted waves from the apparatus and convert the received heat transmitted waves to electrical signals.

    摘要翻译： 一种设备，包括：声子滤波器，被配置为对具有特定频率范围的接收声子进行滤波并且输出具有在该特定频率范围的子范围内的频率的滤波声子; 声子波导，所述声子波导耦合到所述声子滤波器并且被配置为将所述滤波声子引导远离所述声子滤波器; 以及至少一个金属碳纳米管束，其一端连接到所述声子波导以接收有通道滤波声子，其中所述至少一束具有以与所述有通道滤波声子的频率相对应的频率表现出表面等离子体共振的长度， 通道滤波后的声子加热波信号进行传输。 而且，包括该装置和接收器的系统被配置为接收来自该装置的热传输波并将接收到的热传输波转换为电信号。