Data Transmission Method, Related Apparatus, and System

    公开(公告)号:US20210194588A1

    公开(公告)日:2021-06-24

    申请号:US17195920

    申请日:2021-03-09

    Abstract: A data transmission method includes receiving, by an optical line terminal (OLT) from an optical network unit (ONU), uplink burst data that includes a synchronization data block and a payload, where the synchronization data block includes first synchronization data, wherein the first synchronization data includes a first preamble and an ONU identifier, and a first bandwidth occupied by the first frequency distribution of the first synchronization data is narrower than a second bandwidth occupied by the second frequency distribution of the payload, and obtaining, by the OLT from the first synchronization data, the ONU identifier.

    Method and apparatus for despreading in optical domain

    公开(公告)号:US10171175B2

    公开(公告)日:2019-01-01

    申请号:US15857019

    申请日:2017-12-28

    Abstract: An apparatus for despreading in an optical domain configured to split a received optical signal into a first optical signal and a second optical signal, perform phase deflection on the second optical signal, output a third optical signal, perform phase deflection on the first optical signal and the third optical signal, output a fourth optical signal and a fifth optical signal to a balanced receiver, and superimpose the fourth optical signal and the fifth optical signal to generate a first electrical signal. A multiplication operation in conventional code division multiple access (CDMA) despreading is transferred from an electrical domain to an optical domain such that a chip rate can be easily raised to 20 gigahertz (GHz) or even to 25 GHz, a maximum rate of 100 gigabits per second (Gbps) can be provided in a single wavelength, and a user requirement for high bandwidth can be met.

    ACCESS NETWORK CONGESTION CONTROL METHOD, BASE STATION DEVICE, AND POLICY AND CHARGING RULES FUNCTION NETWORK ELEMENT

    公开(公告)号:US20170188260A1

    公开(公告)日:2017-06-29

    申请号:US15458763

    申请日:2017-03-14

    Inventor: Lei Zhou Yuqun Fan

    Abstract: An access network congestion control method, a base station device, and a policy and charging rules function network element are provided. The method includes the following steps: sending a congestion report to a policy and charging rules function network element (PCRF); receiving a radio frequency resource adjustment policy sent by the PCRF; and performing the radio frequency resource adjustment policy for the user equipment in the congested state and the user equipment in the over-served state. A corresponding base station device and PCRF are further disclosed. According to embodiments of the present application, when congestion occurs in a radio access network, radio frequency resources that are of user equipment in a congested state and that are of user equipment in an over-served state may be reallocated to ensure smooth communication.

    Signal transmission method, signal receiving method, passive optical network PON device, and PON system
    35.
    发明授权
    Signal transmission method, signal receiving method, passive optical network PON device, and PON system 有权
    信号传输方式,信号接收方式,无源光网络PON设备和PON系统

    公开(公告)号:US09203517B2

    公开(公告)日:2015-12-01

    申请号:US14209221

    申请日:2014-03-13

    Abstract: Embodiments of the present disclosure relate to a signal transmission method The signal receiving method includes: receiving a first transmit signal, where the first transmit signal includes a first polarized optical signal and a second polarized optical signal that are perpendicular to each other, where the first polarized optical signal is loaded with first data, the first transmit signal is an uplink signal, and the first data is uplink data, or, the first transmit signal is a downlink signal, and the first data is downlink data; splitting the first transmit signal into a first signal and a second signal according to power; separately rotating a first polarized optical signal and a second polarized optical signal of the second signal by 90 degrees; and performing coherent mixing on the rotated second signal and the first signal to obtain the first data.

    Abstract translation: 本公开的实施例涉及一种信号传输方法。信号接收方法包括:接收第一发射信号,其中第一发射信号包括彼此垂直的第一偏振光信号和第二偏振光信号,其中第一 偏振光信号被加载第一数据,第一发送信号是上行链路信号,第一数据是上行链路数据,或者第一发送信号是下行链路信号,第一数据是下行数据; 根据功率将第一发射信号分解为第一信号和第二信号; 将第二信号的第一偏振光信号和第二偏振光信号分开旋转90度; 并对所旋转的第二信号和第一信号执行相干混合以获得第一数据。

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