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    SIGNAL RECEIVING APPARATUS AND METHOD
    1.
    发明公开
    SIGNAL RECEIVING APPARATUS AND METHOD 审中-公开

    公开(公告)号：US20230261758A1

    公开(公告)日：2023-08-17

    申请号：US18307641

    申请日：2023-04-26

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Weiwei Zhang ,  Xu Li ,  Tianxiang Wang ,  Yibo Lv ,  Dongyu Geng ,  Bofang Zheng

    IPC: H04B10/60 ,  H04J14/06

    CPC classification number: H04B10/60 ,  H04J14/06

    Abstract: A signal receiving apparatus and method are provided. When a baseband signal is restored, an orthogonal polarization state of light does not need to be precisely controlled. This is easy to implement and can reduce system costs. The apparatus includes an optical splitter configured to split a first polarization multiplexing optical signal into at least two second polarization multiplexing optical signals, and input the two second polarization multiplexing optical signals into at least two optical signal processing modules. An optical signal processing module is configured to couple the second polarization multiplexing optical signal, and input a coupled optical signal to a photoelectric detector configured to convert the coupled optical signal into an analog signal. An analog-to-digital converter is configured to convert the analog signal into a digital signal, and input the digital signal to a digital signal processor configured to process the digital signal to obtain a baseband signal.

    METHOD FOR DESIGNING TEST CIRCUIT AND ELECTRONIC DEVICE
    4.
    发明公开
    METHOD FOR DESIGNING TEST CIRCUIT AND ELECTRONIC DEVICE 审中-公开

    公开(公告)号：US20240249054A1

    公开(公告)日：2024-07-25

    申请号：US18426293

    申请日：2024-01-29

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Zezhong Wang ,  Yu Huang ,  Weiwei Zhang ,  Naixing Wang ,  Pengju Li

    IPC: G06F30/333 ,  G06F30/323

    CPC classification number: G06F30/333 ,  G06F30/323

    Abstract: A method for designing a test circuit, includes determining a feature of a to-be-tested circuit based on data representing the to-be-tested circuit. The method further includes determining switch distribution for the to-be-tested circuit based on the feature of the to-be-tested circuit. The switch distribution represents distribution, in a two-dimensional switch matrix circuit, of a plurality of switches that are in a test circuit and that are coupled to a plurality of scan chains of the to-be-tested circuit. The switch matrix circuit includes a plurality of rows and a plurality of columns, any one of the plurality of rows has at least one of the plurality of switches, and any one of the plurality of columns has at least one of the plurality of switches.

    Radio Over Fiber System and Nonlinear Compensation Method
    5.
    发明申请
    Radio Over Fiber System and Nonlinear Compensation Method 有权

    公开(公告)号：US20230006741A1

    公开(公告)日：2023-01-05

    申请号：US17942278

    申请日：2022-09-12

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Yibo Lv ,  Xu Li ,  Tianxiang Wang ,  Weiwei Zhang ,  Rongdao Yu

    IPC: H04B10/2575 ,  H04B10/2543 ,  H04J14/02

    Abstract: A radio over fiber (RoF) system and a nonlinear compensation method, where the RoF system includes a BBU and an RRU, the RRU includes an electrical component, and the BBU includes a downlink and a feedback link. A predistortion module and an optical component are disposed on the downlink, an input end of the feedback link is connected to an output end of the optical component, and the feedback link is configured to feed back, to the predistortion module, a nonlinear signal output by the optical component. The RoF system further includes a temperature detection module configured to detect a temperature value of the electrical component, and transmit the temperature value to the predistortion module. The predistortion module is configured to perform digital predistortion DPD on a baseband signal based on the temperature value and the nonlinear signal.

    TIME CHECK METHOD AND BASE STATION
    6.
    发明申请
    TIME CHECK METHOD AND BASE STATION 审中-公开
    时间检查方法和基站

    公开(公告)号：US20150149770A1

    公开(公告)日：2015-05-28

    申请号：US14614845

    申请日：2015-02-05

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Weiwei Zhang ,  Guoliang Nie ,  Zhongyu Qin

    IPC: H04L29/06 ,  H04L29/08

    CPC classification number: H04L63/0823 ,  H04J3/0658 ,  H04L67/06 ,  H04L69/28 ,  H04L2463/121 ,  H04W24/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/164

    Abstract: A time check method and a base station are provided. The base station receives an authentication interaction message sent by an authentication interaction device; extracts time information in the authentication interaction message; and uses the time information to check local time. Before an Internet Key Exchange (IKE) connection is set up between the base station and a security gateway, relatively accurate time is obtained from an external authentication interaction device and is used for aligning the local time. Therefore, the cost of installing a clock component and a battery is saved, the time on the base station is trustworthy, and the security gateway is authenticated securely.

    Abstract translation: 提供时间检查方法和基站。 基站接收认证交互设备发送的认证交互消息; 提取认证交互消息中的时间信息; 并使用时间信息来检查当地时间。 在基站和安全网关之间建立Internet密钥交换（IKE）连接之前，从外部认证交互设备获得相对准确的时间，并用于对准本地时间。 因此，节省了安装时钟组件和电池的成本，基站上的时间是可信赖的，并且安全网关被安全地认证。

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