Journal of Xidian University ›› 2023, Vol. 50 ›› Issue (3): 1-18.doi: 10.19665/j.issn1001-2400.2023.03.001

• Special Issue on 6G Key Technologies for IT3.0 Based on the Integration of Communication,Sensing and Computing •     Next Articles

Deterministic service of space-air-ground integrated networks: architecture,challenges and key technologies

CAO Huan1,2(),CHEN Yan1,2,3(),ZHOU Yiqing1,2,3(),SU Yongtao4(),LIU Zifan1,2(),CHEN Daojin1,2(),DING Yashuai4()   

  1. 1. State Key Lab of Processors,Institute of Computing Technology,Chinese Academy of Sciences,Beijing 100190,China
    2. Beijing Key Laboratory of Mobile Computing and PervasiveDevice,Beijing 100190,China
    3. University of Chinese Academy of Sciences,Beijing 100049,China
    4. Company of Sylincom,Beijing 100190,China
  • Received:2022-12-14 Online:2023-06-20 Published:2023-10-13
  • Contact: Yiqing ZHOU E-mail:caohuan@ict.ac.cn;chenyan19s@ict.ac.cn;zhouyiqing@ict.ac.cn;gaborspace@163.com;liuzifan@ict.ac.cn;chendaojin@ict.ac.cn;dingyashuai@sylincom.com

Abstract:

It is one of the important development directions of future 6G communication to meet the extreme communication needs of users in the global vertical industry,cooperate with the terrestrial mobile communication network and the rapidly developing non-terrestrial network (NTN),and break the traditional rigid service mode of "doing your best" to provide users with global deterministic services.First,this paper summarizes the future space-air-ground integrated network architecture and the deterministic service connotation and scenario requirements under this architecture.In addition,it proposes a global network-oriented deterministic service management and a control technology framework.Then,it analyzes the three major challenges faced in the process of global deterministic service,including the difficulty in ensuring the business awareness of users in the global whole scene,orchestrating the end-to-end slicing network space-air-ground integration,and quickly coordinating and scheduling the global multidimensional resources in the slicing subnet.In response to the above challenges,three solutions are introduced respectively,namely,intelligent cloud-based full-domain,full-scene service sensing technology,satellite earth end-to-end intelligent slicing orchestration based on network topology prediction,and data and model-driven satellite earth resource intelligent allocation technology,which provide a reference for the development of space-air-ground integrated network extreme service technology.

Key words: space-air-ground integration, deterministic service, intelligent perception, network slicing, intelligent resource scheduling

CLC Number: 

  • TN927.23