PHY & MAC Layer Adaptations: Extended PRACH Windows and Dynamic Doppler Filters

Configuring preamble formats and frequency offsets to handle 1000km cell round-trip propagation times.

技術基盤とシステム制約

Deploying non-terrestrial phy & mac layers 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.

実装アーキテクチャとプロトコルフロー

The protocol workflow for non-terrestrial phy & mac layers 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.

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