基于专用激活波长的低时延50G-PON原理与实现  

Mechanism and Application of DAW-Based Low Latency 50G-PON

作　　者：张伟良[1,2] 黄新刚 马壮[1,2] ZHANG Weiliang;HUANG Xingang;MA Zhuang(ZTE Corporation,Shenzhen China,518057;State Key Laboratory of Mobile Network and Mobile Multimedia Tech-nology,Shenzhen China,518055)

机构地区：[1]中兴通讯股份有限公司固网团队,中国深圳518057 [2]移动网络和移动多媒体技术国家重点实验室,中国深圳518055

出　　处：《中兴通讯技术》2022年第4期58-62,共5页ZTE Technology Journal

基　　金：上海市科技计划项目(20511102400);深圳市战略性发展项目(XMHT20190101034)。

摘　　要：在50G-无源光网络(PON)承载低时延业务的需求基础上,分析了50G-PON中安静窗口等因素带来的时延困扰。认为可通过增加专用激活波长(DAW)来解决50G-PON中安静窗口带来的时延问题。验证测试结果表明,结合相应的带宽分配方法,基于DAW的方法能够使50G-PON系统满足承载5G前传的时延要求。Based on the low latency requirement for 50G-passive optical network(PON), the latency introduced by quiet window is analyzed.It is considered that the latency caused by quiet window in 50G-PON can be solved by using the dedicated activation wavelength(DAW).The latency testing results show that, combined with the corresponding bandwidth allocation method, the method based on DAW can make the 50G-PON system meet the latency requirements of carrying 5G fronthaul transmission.

关 键 词：50G-PON 低时延 安静窗口 DAW 

分 类 号：TN929.1[电子电信—通信与信息系统]