电信科学 ›› 2021, Vol. 37 ›› Issue (9): 139-146.doi: 10.11959/j.issn.1000-0801.2021206

• 专栏:5G技术与组网应用 • 上一篇    下一篇

面向5G前传的新型CWDM承载方案

程明, 杜喆, 张德智   

  1. 中国电信股份有限公司研究院,上海 200122
  • 修回日期:2021-09-10 出版日期:2021-09-20 发布日期:2021-09-01
  • 作者简介:程明(1985− ),男,中国电信股份有限公司研究院工程师,主要研究方向为5G前传、光传输、量子保密通信等
    杜喆(1978− ),男,中国电信股份有限公司研究院工程师,主要研究方向为光接入、PON综合业务承载、光链路测量与诊断、5G承载等
    张德智(1978− ),男,中国电信股份有限公司研究院高级工程师,主要研究方向为光接入、PON综合业务承载、PON SDN、5G承载等

A novel CWDM bearer scheme for 5G fronthaul network

Ming CHENG, Zhe DU, Dezhi ZHANG   

  1. Research Institute of China Telecom Co., Ltd., Shanghai 200122, China
  • Revised:2021-09-10 Online:2021-09-20 Published:2021-09-01

摘要:

随着5G网络流量快速增长,6通道25 Gbit/s前传承载需求日趋明显。介绍了移动前传在现网部署的主要方案和标准化情况,针对6通道25 Gbit/s前传低成本承载需求,提出了一种基于CWDM/光环行器的承载方案,分析了该方案的优势与面临的挑战,介绍了该方案在实验室测试和现网试点的情况。

关键词: 5G前传, 粗波分复用, 光环行器, 单纤双向

Abstract:

With the rapid growth of 5G network traffic, the bearer requirement for 6-channel 25 Gbit/s fronthaul has become increasingly obvious.The main schemes and standardizations of fronthaul technology in the existing network were introduced.A novel bearer scheme based on CWDM and optical circulator to satisfy the requirements for 6-channel 25 Gbit/s fronthaul with low cost was proposed.The advantages and challenges of the scheme were analyzed.Tests in laboratory and pilots in actual network were introduced.

Key words: 5G fronthaul, coarse wavelength division multiplexing, optical circulator, single fiber bi-directional

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