通过分析天地一体化骨干网络发展趋势及其约束条件,提出了卫星通信港的概念,阐述了其基本特点,并分析了目前面临的诸多挑战.针对卫星通信港的管理控制问题,提出了软件定义卫星通信港的体系架构,通过对地面网络、卫星网络等不同子网进行分层控制,承载海陆空各种类型节点的连接请求,最终满足不同用户的信息传输需求;同时,提出了以卫星通信港为核心骨干网的天地一体化网络路由策略,为提高网络的运行效率和承载能力提供了新的解决思路.%This paper analyzes the development trend and constraints of integrated space-ground backbone network,and proposes the concept of satellite communication port.Its basic characteristics are described in detail and its challenges are analyzed.In order to solve the problems of management and control of satellite communication port,a software-defined architecture of satellite communication port is proposed.By controlling the different subnets of terrestrial network and satellite network in different layers,the connection requests of various types of nodes can be satisfied,and the information transmission requirements from different users can also be satisfied.Meanwhile,a routing strategy in the backbone network of satellite communication port is proposed,which provides a new way to improve the efficiency and transmission capability of satellite communication network.
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