Summary
This paper outlines a Japanese government R&D initiative developing next-generation high-throughput satellites capable of cooperating with terrestrial 5G/Beyond 5G networks. The authors present a satellite-terrestrial cooperation network simulator designed to identify technical challenges and validate integration algorithms, with planned on-orbit verification using Engineering Test Satellite 9. The work addresses terrestrial coverage expansion, disaster resilience through backup satellite connectivity, and novel applications enabled by integrated satellite-terrestrial systems.
UK applicability
The technical framework and simulator approach may be applicable to UK telecommunications infrastructure planning and disaster resilience strategies, particularly regarding rural broadband expansion and critical infrastructure backup. However, the findings are specific to Japan's satellite programme and would require adaptation to UK regulatory, orbital, and terrestrial network contexts.
Key measures
Satellite-terrestrial network integration capabilities, coverage expansion metrics, disaster resilience via backup satellite links, and algorithm validation through network simulation
Outcomes reported
The study presents a five-year R&D programme (2020–2024) developing next-generation high-throughput satellites designed for seamless integration with terrestrial 5G/Beyond 5G networks. The authors introduce a satellite-terrestrial cooperation network simulator as a validation tool for identifying technical challenges and verifying integration algorithms.
Topic tags
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