基于5G通信技术承载网建设研究

Analysis on the Construction Strategy of Carrying Network in 5G Era

随着移动网络的不断演进,单一语音业务承载向数据业务、实时多媒体业务等综合业务融合发展。国内三大运营商4G网络的接入传输网络基本以IPRAN和PTN为主,它们能满足网络渐进式演进的需求,在2G、3G、4G共址情况下,可以提供E1、IP等多种基站接口需求,实现一定时期内的基站深度覆盖。进入5G时代,eMBB大带宽业务、mMTC(海量连接)和uRLLC(高可靠低时延)等新业务成为5G发展的核心驱动力,现有的承载网设备不能满足大流量承载、SLA可承诺等的运营需求。基于此,本文主要对5G时代承载网的建设进行了探析。

With the continuous evolution of the mobile network,the single voice service bearer has developed into integrated services such as data service and real-time multimedia service.IPRAN and PTN are the main access transmission networks of 4G networks of the three major operators in China,which can meet the needs of gradual network evolution.under the condition of 2G,3G and 4G co-location,they can provide E1,IP and other base station interface requirements,and realize deep coverage of base stations in a certain period of time.In the 5G era,new services such as eMBB large bandwidth service,mMTC(mass connection)and uRLLC(high reliability and low delay)have become the core driving force of 5G development,and the existing bearer network equipment cannot meet the operational requirements of large traffic bearer and SLA commitment.Based on this,this paper mainly discusses the construction of bearer network in 5G era.