面向6G的低轨卫星通信系统移动性管理技术  

Mobility Management Technologies for 6G-Oriented Low Earth Orbit Satellite Communication Systems

作　　者：陆航 张佳鑫[1] 王海旭 LU Hang;ZHANG Jiaxin;WANG Haixu(Key Laboratory of Universal Wireless Communications,Ministry of Education,School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China)

机构地区：[1]北京邮电大学信息与通信工程学院,泛网无线通信教育部重点实验室,北京100876

出　　处：《天地一体化信息网络》2025年第1期35-44,共10页Space-Integrated-Ground Information Networks

基　　金：国家重点研发计划资助项目(No.2022YFB2902501);北京邮电大学基本科研业务费项目(No.2023ZCJH09);北京市海淀区金桥种子基金(No.S2024161)。

摘　　要：低轨卫星系统凭借其全球覆盖、低时延等独特优势,结合星地直连的通信方式,在增强全球通信能力方面展现出巨大潜力,将成为下一代通信网络的重要组成部分。然而,该系统在移动性管理上面临诸多挑战,包括频繁的卫星切换、复杂的信令交互以及切换资源的分配管理等。为了推动低轨卫星移动性管理的发展,首先围绕架构设计、切换机制、业务连续性管理方面概述了近年来在该领域的相关进展,然后给出面向6G的低轨卫星移动性管理增强技术,最后探讨未来面临的机遇与挑战。The LEO satellite system,with its unique advantages such as global coverage and low latency,combined with the direct satellite-to-ground communication method,has shown great potential in enhancing global communication capabilities and will become an important part of next-generation communication network.However,the system faces many challenges in mobility management,including frequent satellite handovers,complex signaling interactions,and allocation and management of handover resources.To better advance the development of mobility management in LEO satellite communication systems,this paper first provided an overview of recent progress in mobility management related to architecture design,handover mechanisms,and traffic continuity management.It then presented mobility management enhancement technologies for 6G LEO satellite systems.Finally,this paper discussed the opportunities and challenges that future LEO satellite communication systems may face in mobility management.

关 键 词：低轨卫星 移动性管理 6G卫星通信 

分 类 号：TN927.2[电子电信—通信与信息系统]