条件付きハンドオーバー（CHO）、高速衛星通過時の測定レポート、地上波5G NRとNTNビーム間のデュアルコネクティビティ（MR-DC）、セッション継続性確保の技術機構。
Deploying hybrid satellite-cellular roaming in non-terrestrial environments requires solving fundamental physics constraints: path loss over 1000km distances, rapid carrier frequency shifts due to Doppler effects, and power-thermal limits of spaceborne hardware. The architecture provides deterministic mitigation strategies.
The protocol workflow for hybrid satellite-cellular roaming coordinates physical layer signal acquisition with higher-layer transport resilience. By leveraging open-loop ephemeris calculations and adaptive retransmission timers, communication links maintain uninterrupted throughput across satellite handoffs.