天地一体化网络发展及关键技术概述  

The overview of development and key technologies of the space-ground integrated network

作　　者：周颖 施倩 李瑞瑜 刘岩[1] ZHOU Ying;SHI Qian;LI Ruiyu;LIU Yan(China Academy of Space Technology(Xi’an),Xi’an 710000,China)

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2025年第1期28-39,共12页Space Electronic Technology

基　　金：国家自然科学基金(编号:62341102)。

摘　　要：近年来,地面网络和空间网络的多源、多维业务呈现逐渐融合的趋势,并且日趋成熟的空间网络在服务能力方面对地面网络的增强补充力逐步提升,面向6G以及未来通信,建设天地一体化网络意义深远。首先,文章介绍了天地一体化网络的基本概念,简述了卫星通信和地面通信交织融合发展的三个阶段。随后,梳理了天地一体化网络典型星地融合系统建设现状及通信体制发展现状,通过分析天地一体化网络的发展趋势、愿景、面临需求和挑战,引出所需的三大潜在关键技术,即智能网络技术、一体化空口技术、超高频率技术并对其在天地一体化网络中的应用进行了分析和阐述,分别解决大时空尺度异构多网融合、卫星网络与地面网络无缝切换及海量数据通信的超高带宽需求问题。此外,针对工程应用对天地一体化网络的关键技术发展提出了相应建议。In recent years,the multi-source and multi-dimensional services of ground networks and space networks present a trend of integration,and the increasingly mature space networks are gradually enhancing the complementary power of ground networks in terms of service capabilities.The significance of building an integrated network for 6G and future communication is far-reaching.Firstly,this paper introduces the concept of space-ground integrated network and describes three stages of the interweaving and integration development of satellite communication and ground communication.Then,it sorts out the current development status of typical space-ground integrated systems and communication systems of space-ground integrated network at home and abroad.By analyzing the development trend,vision,requirements and challenges of space-ground integrated network,three potential key technologies are identified,namely intelligent network technology,integrated air interface technology,and ultra high frequency technology which solves the large-scale heterogeneous multi network fusion,seamless switching between satellite networks and ground networks,and ultra-high bandwidth requirements of massive data communication.Moreover,analyzes and expounds the application of key technologies in the space-ground integrated network.In addition,it puts forward some suggestions for the development of key technologies in engineering applications for the space-ground integrated network.

关 键 词：天地一体化网络 卫星网络 6G 

分 类 号：TN927[电子电信—通信与信息系统] V443[电子电信—信息与通信工程]