当前国内数据用户数和数据业务流量正呈指数增长态势,同时移动和固定网络融合、多业务综合承载趋势也日益明显。IP RAN(IP无线接入网)作为新型承载方案将帮助运营商减少资本支出、实现网络可持续发展。1.IP RAN技术及应用1)IP RAN应用场景运营商正面临着高价值业务的宽带化IP化、多样化、多张异构网络并存的矛盾和挑战。MSTP设备不支持统计复用,接口带宽和交叉容量已经成为制约网络发展的瓶颈。而以IP为内核的IP RAN设备都天然支持IP业务和以太网 At present, the number of domestic data users and data traffic is exponential growth, while mobile and fixed network convergence, multi-service integrated bearing trend is also increasingly evident. As a new bearer solution, IP RAN (IP Radio Access Network) will help operators reduce their capital expenditures and achieve sustainable network development. 1.IP RAN Technology and Application 1) IP RAN Application Scenario Operators are facing the contradictions and challenges of coexistence of broadband IP, diversification and heterogeneous networks of high-value services. MSTP equipment does not support statistical multiplexing, interface bandwidth and cross-capacity has become a bottleneck restricting the development of the network. The IP-based IP RAN devices natively support IP services and Ethernet