摘要
低轨卫星通信与地面5G的融合是大势所趋,网络切片技术针对星地融合网络中多种多样的应用服务可以端到端地分配不同的计算资源和带宽,提高网络灵活性和扩展性,应用前景广阔。针对融合网络切片面临的的主要问题进行探讨,包括卫星地面段虚拟化、虚拟网络嵌入、业务功能链和融合网络切片等,提出了一些解决方案,并对基于SDN/NFV的星地融合网络切片发展趋势和前景做出展望。
The integration of low-orbit satellite communications and terrestrial 5G is the general trend.Network slicing technology can allocate different computing resources and bandwidth to a variety of applications in an end-to-end way for satellite-ground integrated networks,which increases network flexibility and scalability,and thus has a broad application prospect.This paper discusses the main issues faced by integrated network slicing,including satellite ground segment virtualization,virtual network embedding,service function chain and integrated network slicing,etc,and several solutions are further proposed.Finally,this paper provides the prospects and development trends of SDN/NFV-based satellite-ground integrated network slicing.
作者
贺晓赫
侯缋玲
梁旭文
HE Xiaohe;HOU Huiling;LIANG Xuwen(ShanghaiTech University,Shanghai 201210,China;University of Chinese Academy of Sciences,Beijing 10049,China;Shanghai Engineering Center for Microsatellites,Shanghai 201210,China)
出处
《移动通信》
2020年第9期34-39,共6页
Mobile Communications
关键词
SDN
NFV
星地融合
网络切片
SDN
NFV
satellite-terrestrial integrated networks
network slicing
