基于CWDM/环行器技术的5G前传承载方案研究  

Research on 5G fronthaul transmission based on CWDM/circulator technology

作　　者：杜喆[1] 程明[1] 张德智 Du Zhe;Cheng Ming;Zhang Dezhi(Research Institute of China Telecom Co.,Ltd.,Shanghai 200122,China)

机构地区：[1]中国电信股份有限公司研究院,上海200122

出　　处：《电子技术应用》2021年第10期10-15,21,共7页Application of Electronic Technique

摘　　要：运营商在规模建设5G前传网络时,为了节省光纤资源,大量部署了粗波分复用(Coarse Wavelength Division Multiplexing,CWDM)无源彩光设备,实现5G前传3通道承载。为满足5G多频组网以及电信联通共建共享的需求,运营商提出了包括中等波分复用(Medium Wavelength Division Multiplexing,MWDM)、细波分复用(LAN Wavelength Division Multiplexing,LWDM)、密集波分复用(Dense Wavelength Division Multiplexing,DWDM)等技术在内的多通道承载方案。在此背景下,项目组创新提出了基于CWDM/环行器技术的多通道承载方案,该方案不仅实现产业链共享、具备国产化能力最高的特点,还能够最大化降低5G前传网络建设成本。详细介绍了CWDM/环行器方案的现网部署方案以及存在的问题。When building a large-scale 5G fronthaul network,operators have deployed a large number of CWDM passive coarse wavelength division multiplexing(CWDM)equipment in order to save fiber resources to realize 3-channel fronthaul transmission.In order to meet the needs of 5G multi-frequency networking and the joint construction and sharing of China Telecom and China Unicom,operators have proposed multi-channel solutions including medium wavelength division multiplexing(MWDM),LAN wavelength division multiplexing(LWDM),dense wavelength division multiplexing(DWDM)and other technologies.In this context,the research team innovatively proposed a multi-channel solution based on CWDM/circulator technology.This solution not only achieves industry chain sharing,has the highest localization capability,but also minimizes 5G fronthaul network construction cost.This article describes in detail the current network deployment plan of the CWDM/circulator solution and the existing problems.

关 键 词：5G前传 粗波分技术 环行器 光反射 

分 类 号：TN929.5[电子电信—通信与信息系统]