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1.中国信息通信研究院,北京 100191
2.中信科移动通信技术股份有限公司,北京 100083
3.中国信息通信研究院华东分院,上海 201101
[ "李思栋(1995- ),男,中国信息通信研究院工程师,主要从事无线信息化、卫星通信等方面的研究工作。" ]
李侠宇(1978- ),男,中国信息通信研究院技术与标准研究所副总工程师、正高级工程师,现任IMT-2020(5G)推进组5G NTN工作组组长,中国通信标准化协会TC611 WG2工作组组长。长期从事移动通信4G和5G网络、移动互联网、数字集群、专网通信、卫星通信、卫星定位和导航等方面的研究、标准化、技术评估和试验工作。
孙建成(1982- ),男,中信科移动通信技术股份有限公司高级工程师,主要从事 4G/5G/6G高层技术研究和标准化推动工作,主要研究方向为卫星通信。担任3GPP Rel-19 NR NTN的联合报告人,负责RAN2/3标准化工作。
康绍莉(1974- ),女,博士,中信科移动通信技术股份有限公司正高级工程师,长期从事移动通信新技术研究,主要研究方向包括移动通信系统设计及多址接入技术、卫星通信、频谱共享等。
廖运发(1973- ),男,中国信息通信研究院华东分院院长、副总工程师、高级工程师,机载公众通信联盟运营专委会主席。长期从事信息通信、互联网、数字化及安全领域的技术研究、咨询规划、标准制定、测试评估、市场研究等工作。
陈俊琰(1981- ),男,博士,中国信息通信研究院华东分院副总工程师、高级工程师,长期从事人工智能与大数据、企业信息化规划等相关领域的整体规划设计及解决方案等咨询工作。
收稿日期:2024-03-15,
修回日期:2024-04-15,
纸质出版日期:2024-04-20
移动端阅览
李思栋,李侠宇,孙建成等.手机直连卫星应用发展与挑战[J].电信科学,2024,40(04):43-55.
LI Sidong,LI Xiayu,SUN Jiancheng,et al.Development and challenges of direct-to-handset satellite communication[J].Telecommunications Science,2024,40(04):43-55.
李思栋,李侠宇,孙建成等.手机直连卫星应用发展与挑战[J].电信科学,2024,40(04):43-55. DOI: 10.11959/j.issn.1000-0801.2024095.
LI Sidong,LI Xiayu,SUN Jiancheng,et al.Development and challenges of direct-to-handset satellite communication[J].Telecommunications Science,2024,40(04):43-55. DOI: 10.11959/j.issn.1000-0801.2024095.
近年来,卫星互联网发展迅速,全球主要国家积极推动卫星星座的建设,星地融合网络成为未来6G的重要演进趋势,手机直连卫星也成为终端厂商的产品卖点。归纳了全球手机直连业务的发展现状,提出3种手机直连技术发展路线,分析手机直连卫星所面临的终端芯片一体化、星地融合、星地频率共享等挑战,总结了手机直连业务所需要攻克的关键技术,如时频同步技术、随机接入技术、HARQ重传技术、移动性管理技术和星上再生网络架构,并对手机直连卫星业务的未来趋势进行研判。
In recent years
satellite Internet has developed rapidly
with major countries around the world actively promoting the construction of satellite Internet. The integration of satellite and terrestrial networks has become an important trend in the evolution towards 6G
and direct-to-handset satellite services has also become a selling point for terminal manufacturers. The current state of global direct-to-handset satellite services was summarized
three development routes for direct-to-handset satellite technology were proposed
and the challenges faced by direct-to-handset satellite connections were analyzed
including the integration of terminal chips
integration of satellite and terrestrial networks
and sharing of frequencies between satellite and terrestrial systems. The key technologies that need to be mastered for direct-to-handset satellite services were also outlined
such as time-frequency synchronization technology
random access technology
HARQ retransmission technology
and mobility management technology
and the future trends of direct-to-handset satellite services were assessed.
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