Analyse complète de la feuille de route 3GPP NTN, couvrant les extensions de couches de protocole pour les RTT élevés, la compensation Doppler extrême, la désactivation HARQ et les architectures gNodeB réparties en orbite.
Deploying 3gpp ntn rel-17/18 evolution 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 3gpp ntn rel-17/18 evolution 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.