面向星地协同的接入网架构与关键技术

doi:10.11959/j.issn.2096-8930.2023026

Abstract

Abstract:

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＆amp;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.

Key words: satellite internet, satellite-terrestrial cooperation, access network architecture

CLC Number:

TN92

Wei DENG, Lin ZHAO, Weiwen WENG, Qin DU, Ke MA, Jinxia CHENG, Long ZHANG. Architecture and Key Technologies of Access Network for Satellite-Terrestrial Cooperation[J]. Space-Integrated-Ground Information Networks, 2023, 4(3): 12-22.

Figures/Tables 9

References 26

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功能分类	具体描述
组网协同	作为再生模式下星上网元的地面锚点，实现透明转发与再生模式统一动态组网
	精准的星地邻区关系；
资源协同	高效的星地频率复用；
	灵活的波束管理
能力协同	动态协同测控

Architecture and Key Technologies of Access Network for Satellite-Terrestrial Cooperation

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