天地一体化信息网络2024，Vol.5Issue(4)：17-24,8.DOI:10.11959/j.issn.2096-8930.2024035
面向低轨卫星的NTN随机接入技术
Random Access Technology of NTN Network for Low Orbit Satellite
宋艳军 1孙晨华 2谢文轩 3徐军 3张志丽 2张静2
作者信息
- 1. 中国电子科技集团公司第五十四研究所,河北 石家庄 050081||电子科技大学,四川 成都 611731
- 2. 中国电子科技集团公司第五十四研究所,河北 石家庄 050081
- 3. 电子科技大学,四川 成都 611731
- 折叠
摘要
Abstract
By comparing the differences between NTN communication and ground-based 5G communication,this paper concluded that the random access of low-orbit satellite NTN should be studied.The problems and key technologies of NTN random access were deeply analyzed.A simple and easy to implement frequency offset compensation method for satellite beam-pointing sensing was pro-posed to solve the Doppler frequency offset problem of high dynamic signals.A real-time scheduling method of multi-point beam sub-region coverage was proposed to solve the problem of beam control for low orbit satellite access.A new idea of using reinforcement learning method to design access class barring factors was proposed to solve the random access congestion problem in low orbit NTN scenario.关键词
非地面网络/随机接入/低轨卫星Key words
non-terrestrial network/random access/low orbit satellite分类
信息技术与安全科学引用本文复制引用
宋艳军,孙晨华,谢文轩,徐军,张志丽,张静..面向低轨卫星的NTN随机接入技术[J].天地一体化信息网络,2024,5(4):17-24,8.
