摘要
论文在对城域传送网的业务承载需求进行研究的基础上,对基于分组传送网(PTN)技术的TD-LTE承载方案进行了深入探讨。根据TD-LTE网络中大带宽、低时延的新需求,提出了PTN+CE路由器和L3 PTN两种承载TD-LTE的解决方案,并详细阐述了针对SGW和MME在不同地域部署时两种方案的业务流量转发路径。其中,本文重点介绍了L3 PTN方案中的L2/L3桥接方案。在此基础上,对PTN+CE路由器和L3 PTN两种方案在业务流量解决方案、网络管理、OAM能力以及成本等方面进行了研究和分析。理论分析和现网测试证明,L3 PTN方案将在城域传送网中得到推广和应用。
This paper investigates the TD-LTE backhaul solution based on Packet Transport Network （PTN） on the basis of research on the business requirements of the Metropolitan Transport Network. It proposes both the PTN＋CE router solution and L3 PTN solution for TD-LTE backhaul according to the new demand in TD-LTE networks such as large bandwidth and low latency, and elaborates two solutions＇ business traffic forwarding path in connection with SGW and MME deployed in different regions. This paper focuses on the L2/L3 bridge solution in the L3 PTN solution. On this basis, it researches and analyses business traffic solutions, network management, OAM capabilities and cost both in the PTN＋CE router solution and L3 PTN solution. The theoretical analysis and network test prove that the L3 PTN solution will be promoted and applied in the Metropolitan Transport Network.
出处
《软件》
2012年第12期257-262,共6页
Software
