移动通信2025，Vol.49Issue(11)：136-144,9.DOI:10.3969/j.issn.1006-1010.20241013-0001
手机直连低轨通信卫星:信道模型与链路技术分析
Direct-to-Handset Low Earth Orbit Satellite Communication:Channel Modeling and Link Technology Analysis
摘要
Abstract
Direct-to-handset communication via low earth orbit(LEO)satellites has emerged as a critical enabler for global connectivity and integrated terrestrial-satellite networking in sixth-generation(6G)mobile communication systems.This technology has garnered significant attention from both industry and academia,positioning itself as a global research hotspot.This paper aims to analyze the latest advancements in direct-to-handset communication using LEO satellites,emphasizing its link technologies and associated challenges.The study begins with an overview of the current state of development,including the technical approaches and implementation methods.It then delves into key aspects such as channel modeling,network architecture,time-frequency synchronization,frequency coexistence,random access,spaceborne antenna technologies,and handset antenna design.Finally,the paper concludes by summarizing the findings,highlighting potential challenges in practical applications,and outlining future research directions for this promising field.关键词
手机直连/低轨通信卫星/6G/天地融合组网Key words
direct-to-handset communication/low earth orbiting communication satellites/6G wireless networks/integrated terrestrial-satellite networking分类
信息技术与安全科学引用本文复制引用
何宗苗,王瀚霆,杨欣源,凌翔,成飞,吴建光,付宁..手机直连低轨通信卫星:信道模型与链路技术分析[J].移动通信,2025,49(11):136-144,9.基金项目
成都工业学院人才项目基金"新型多载波无线传输理论及关键技术研究"(245033) （245033）
