CN110226299A - 无源光网络***中通信的方法、光线路终端和光网络单元 - Google Patents

无源光网络***中通信的方法、光线路终端和光网络单元 Download PDF

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CN110226299A
CN110226299A CN201780084145.6A CN201780084145A CN110226299A CN 110226299 A CN110226299 A CN 110226299A CN 201780084145 A CN201780084145 A CN 201780084145A CN 110226299 A CN110226299 A CN 110226299A
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onu
olt
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CN110226299B (zh
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殷锦蓉
赵殿博
杨素林
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/40—Transceivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q2011/0064—Arbitration, scheduling or medium access control aspects

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

本申请公开了一种无源光网络***中通信的方法、光线路终端和光网络单元，该PON***包括OLT和至少一个ONU，该方法包括：该OLT接收该至少一个ONU中的第一ONU通过第一上行通道发送的第一消息；根据该第一消息的接收时刻，确定该第一ONU的第一往返时延RTT；根据该第一RTT，确定时间窗口；通过下行通道向该第一ONU发送第一指示信息，该第一指示信息包括该时间窗口；接收该第一ONU在该时间窗口内通过第二上行通道发送的第二消息；根据该第二消息的接收时刻，确定该第一ONU的第二RTT。本申请实施例的无源光网络***中通信的方法、光线路终端和光网络单元，能够有效地降低激活开窗时延，实现简单，节约成本。

Description

PCT国内申请，说明书已公开。

Claims (30)

  1. PCT国内申请，权利要求书已公开。
CN201780084145.6A 2017-02-28 2017-02-28 无源光网络***中通信的方法、光线路终端和光网络单元 Active CN110226299B (zh)

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CN113824506A (zh) * 2020-06-20 2021-12-21 华为技术有限公司 光信号处理方法、光收发器、控制器和光线路终端
CN114554322A (zh) * 2020-11-27 2022-05-27 华为技术有限公司 获取传输时延的方法及装置
WO2022110926A1 (zh) * 2020-11-28 2022-06-02 华为技术有限公司 传输调度的方法、装置、计算设备和存储介质
WO2022193744A1 (zh) * 2021-03-17 2022-09-22 中兴通讯股份有限公司 无源光网络时间同步方法、电子设备及存储介质

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CN110418217A (zh) * 2018-04-26 2019-11-05 中兴通讯股份有限公司 开放安静窗口的方法和装置以及注册方法、装置和***
CN110943783B (zh) * 2018-09-25 2022-08-19 中兴通讯股份有限公司 光网络的测距方法、olt、onu、光网络***
CN114938478A (zh) 2018-09-25 2022-08-23 中兴通讯股份有限公司 无源光网络***的数据处理方法、装置及无源光网络***
US10979789B1 (en) * 2020-06-15 2021-04-13 Corning Research & Development Corporation Wavelength-based uplink random access in an optical communications network for a wireless communications system (WCS)
US11527117B2 (en) * 2021-01-11 2022-12-13 Ford Global Technologies, Llc Interference avoiding distance measurement
CN117676392A (zh) * 2022-08-31 2024-03-08 华为技术有限公司 一种注册方法，相关设备以及光通信***
KR102521103B1 (ko) * 2022-11-11 2023-04-12 (주)자람테크놀로지 다파장 광통신 단말의 거리 지연 검출 장치 및 이를 이용한 다파장 광통신 단말의 네트워크 등록 방법
KR102521102B1 (ko) * 2022-12-27 2023-04-12 (주)자람테크놀로지 수동형 광 랜을 위한 광통신 단말 등록 지연 감소 장치 및 이를 이용한 광통신 단말의 등록 방법

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CN113727218A (zh) * 2020-05-25 2021-11-30 中国电信股份有限公司 设置静态窗口长度的方法及相关设备
CN113727218B (zh) * 2020-05-25 2023-03-31 中国电信股份有限公司 设置静态窗口长度的方法及相关设备
CN113824506A (zh) * 2020-06-20 2021-12-21 华为技术有限公司 光信号处理方法、光收发器、控制器和光线路终端
CN114554322A (zh) * 2020-11-27 2022-05-27 华为技术有限公司 获取传输时延的方法及装置
WO2022110926A1 (zh) * 2020-11-28 2022-06-02 华为技术有限公司 传输调度的方法、装置、计算设备和存储介质
CN114640906A (zh) * 2020-11-28 2022-06-17 华为技术有限公司 传输调度的方法、装置、计算设备和存储介质
WO2022193744A1 (zh) * 2021-03-17 2022-09-22 中兴通讯股份有限公司 无源光网络时间同步方法、电子设备及存储介质

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JP6877566B2 (ja) 2021-05-26
JP2020509698A (ja) 2020-03-26
EP3576319B1 (en) 2021-06-30
US20190386743A1 (en) 2019-12-19
EP3576319A1 (en) 2019-12-04
WO2018157291A1 (zh) 2018-09-07
US10727939B2 (en) 2020-07-28
EP3576319A4 (en) 2020-01-22
CN110226299B (zh) 2021-06-04

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