北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2024, Vol. 47 ›› Issue (6): 69-98.

• • 上一篇    

低轨卫星互联网:从星地融合迈向通导遥一体化

孙耀华,彭木根,赵亚飞,赵祥天   

  1. 北京邮电大学 信息与通信工程学院
  • 收稿日期:2024-04-16 修回日期:2024-06-12 出版日期:2024-12-28 发布日期:2024-10-29
  • 通讯作者: 彭木根 E-mail:pmg@bupt.edu.cn
  • 基金资助:
    国家重点研发计划项目(2021YFB2900200、2022YFB2902603)、国家自然科学基金项目(62371071) 

Low Earth Orbit Satellite Internet: from Satellite-Ground Convergence to Communication, Navigation and Sensing Integration

  • Received:2024-04-16 Revised:2024-06-12 Online:2024-12-28 Published:2024-10-29

摘要: 得益于丰富的轨道资源以及更低的制造和发射成本,低轨卫星互联网进入蓬勃发展期。围绕星地融合和通导遥一体化两大发展趋势,首先,从接入网、承载网和核心网维度出发,提出了星地融合网络架构;然后,对星地融合通信的典型应用—手机直连卫星通信的方案进行了详细分析,并提出了面向第六代移动通信技术的手机直连卫星通信关键技术;最后,系统阐述了低轨卫星通信导航遥感一体化的网络架构、关键技术和应用场景。

关键词: 低轨卫星互联网, 星地融合通信, 通导遥一体化

Abstract: Leveraging vast orbital resources and reduced satellite manufacturing and launch costs, the low-orbit satellite Internet has entered a stage of vibrant development, In this paper, centered on the two important trends of satellite-terrestrial convergence and the integration of communication, navigation and remote sensing, we propose a satellite-terrestrial converged network architecture from the perspectives of access, transport , and core networks. Subsequently, we carefully analyze solutions of direct-to-handset satellite communication or typical applications of space-ground convergence, and put forth the pivotal technologies for direct-to-handset satellite communications towards the 6th generation of mobile communication network. Finally, a comprehensive discussion on the network architecture, key technologies, and potential application scenarios regarding with the integration of low-orbit satellite communication, navigation, and remote sensing is presented.

Key words: low earth orbit satellite network, satellite-terrestrial convergence, the integration of communication, navigation and sensing

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