Random Access Technology of NTN Network for Low Orbit Satellite
Year: 2024
Type: article
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 proposed 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.
Authors: SONG Yanjun, SUN Chenhua, XIE Wenxuan, XU Jun, ZHANG Zhili, ZHANG Jing
Language: English
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7024028629
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