基于5G网络的传送网关键技术

Key Technologies of Transmission Network Based on 5G Network

5G网络面临大带宽、低时延、高精度时间同步、网络分片、灵活连接以及组网架构变化等多方面的技术挑战。现有网络的分组传送网(PTN)、基于IP的无线接入网(IPRAN)以及光传送网(OTN)等技术,难以完全满足5G的长远需求。5G传送网对关键技术的要求非常高,由此出现的新型网络架构(SPN)、灵活以太网(FlexE)、灵活光传送网(FlexO)以及分段路由(SR)等新技术为5G网络提供了新的选择。

5G network faces many technical challenges,such as large bandwidth,low delay,high-precision time synchronization,network fragmentation,flexible connection and network architecture changes.The Packet Transport Network(PTN),IP based wireless access network(IPRAN)and Optical Transport Network(OTN)can not fully meet the long-term needs of 5G.5G transport network has very high requirements for key technologies.New technologies such as SPN,FlexE,FlexO and SR provide new choices for 5G network.