摘要
随着泛在宽带通信需求和星地通信技术的演进,卫星与地面蜂窝通信产业生态系统正逐步走向融合。为满足星地协同应用场景及技术需求,分析星地协同的接入网架构面临的主要技术挑战,基于连接动态、资源统一管控、地面控制的总体原则,从空间段、地面段及星地协同段阐述面向星地协同的接入网架构。从需求出发,基于所提网络架构提出对应的覆盖协同、业务协同、节能协同与测控协同的关键技术,通过设计智能动态协作网元、动态Xn接口、分布式测控单元等协同网元,星地两网深度交互有用信息,实现动态高效的星地协同机制,推动卫星网络与地面网络进一步互补,提高系统在资源利用率、能源消耗以及网络建设成本等方面的整体性能。
With the development of ubiquitous and broadband communication requirements and the satellite-ground integration communication technology,the satellite and ground cellular communication industry ecosystem is gradually moving towards integration.In order to meet the application scenarios and technical requirements of satellite-terrestrial cooperation,the main technical challenges of the access network architecture were analyzed.Based on the overall principles of connection dynamics,unified resource management and controlled by ground network,the architecture of access network for satellite-terrestrial cooperation was elaborated from space segment,ground segment and cooperative segment.Key technologies of coverage cooperation,service cooperation,energy saving cooperation and capability cooperation were proposed based on the elaborated network architecture.By design cooperative network elements,such as intelligent dynamic cooperative unit,dynamic Xn interface,distributed TT&C units,the useful information between satellite and ground networks interacted deeply,a dynamic and efficient satellite-terrestrial cooperation mechanism could be realized.It could promote further complementarity between satellite and ground networks and improved overall system performance in resource utilization rate,energy consumption,and network construction cost.
作者
邓伟
赵琳
翁玮文
杜琴
马克
程锦霞
张龙
DENG Wei;ZHAO Lin;WENG Weiwen;DU Qin;MA Ke;CHENG Jinxia;ZHANG Long(China Mobile Research Institute,Beijing 100053,China)
出处
《天地一体化信息网络》
2023年第3期12-22,共11页
Space-Integrated-Ground Information Networks
关键词
卫星互联网
星地协同
接入网架构
satellite internet
satellite-terrestrial cooperation
access network architecture
