5G时代光与无线融合接入网及其关键技术研究进展

Research Progress of Converged Optical and Wireless Access Network and Its Key Technologies in 5G

随着第五代移动通信技术的演进升级,移动网络将支持更为庞大的移动用户群及更为多样的业务场景,大幅提升互联网业务体验,全面支持物联网感知应用。从无线接入网发展趋势入手,分别对其架构演进及关键技术,包括无线接入技术、光承载技术、前/中传接口技术、控制管理技术、网络切片技术等进行了详细分析,并指出无线接入网络在向5G时代发展中面临的重要挑战。

With the development of Fifth-generation(5G)mobile communication,mobile networks are dedicated to accommodating more subscribers and diversified service scenarios.5G is then expected to significantly enhance the quality of experience on services,and pave way for the interconnection of everything.Starting from the development trends of radio accoss network(RAN),this paper investigates its evolution progress and key technologies,including wireless access,optical bearing,interfaces for fronthaul and midhaul,control and management,as well as network slicing.Finally,the urgent challenges are described from the perspective of RAN evolution towards 5G.