摘要
5G无线网络覆盖将比4G更广、更密,承载网面临超高带宽、超低时延、高精度同步、灵活切片、开放协同、高可靠性等挑战,因此承载网需要更灵活的组网结构以适应无线网络的演进。现有的承载网技术不能完全满足5G演进新需求,需引入网络切片、SDN、NFV和接入无关等新技术,以满足云化、差异化服务和管理控制需求。文中在研究5G网络新业务以及无线网络结构变化的基础上,对5G承载网结构的演进以及可能采用的技术方案进行了探讨,最后从运营商的承载网现状出发,对5G承载网分阶段部署规划提出了建议。
5G wireless network will cover a wider and more dense area than 4G.The bearer network will face the challenges of ultra-high bandwidth,ultra-low delay,high-precision synchronization,flexible slicing,open cooperation and high reliability.Therefore,the bearer network needs a more flexible network structure to adapt to the evolution of wireless network.The existing bearer network technology can not fully meet the new requirements of 5G evolution.New technologies such as network slicing,SDN,NFV and access independence should be introduced to meet the needs of cloud,differentiated services and management control.On the basis of studying the new services of 5G network and the changes of wireless network structure,this paper discusses the evolution of 5G bearer network structure and the possible technical schemes.Finally,based on the current situation of carrier network,the paper puts forward some suggestions on the phased deployment planning of 5G bearer network.
作者
谢晖
黄贤宝
XIE Hui;HUANG Xian-bao(Fuzhou Institute of Technology,Fuzhou Fujian,350506,China;Fuzhou Institute of Technology Mobile Communication and Internet of Things,Fujian University Engineering Research Center,Fuzhou Fujian,350506;Huaxin Consulting Co.,Ltd. Fuzhou Branch,Fuzhou Fujian,350015)
出处
《佳木斯大学学报（自然科学版）》
CAS
2019年第2期211-214,共4页
Journal of Jiamusi University：Natural Science Edition
基金
福建省高校工程研究中心开放课题(Kfkt2017001)
关键词
5G承载网
前传
中传
回传
规划
5G bearer network
fronthaul
middlehaul
backhaul
planning
