NTNPositioning Global PPP-RTK Correction Distribution Matrix
Generating global satellite clock, orbit, and ionospheric delay streams delivered over geostationary beams
Central System: Global GNSS Tracking Network - 200+ worldwide atomic reference stations
Network Nodes
- Global GNSS Tracking Network
- PPP Correction Processing Core
- L-Band / S-Band Satellite Uplink
- Autonomous Field Rover
Architectural Protocol Layers
- Spaceborne PHY/MAC Layer (3GPP Rel-17 TS 38.300): Doppler compensation, HARQ disabling, and timing advance extension.
- Orbital Mesh Routing (CCSDS / Delay-Tolerant Networking): Dynamic topology routing over intermittent laser crosslinks.
- Regenerative Core Processing (OpenRAN / 3GPP CU-DU Split): Onboard user plane function (UPF) local breakout.
Key Metrics: < 18ms (LEO Orbit-to-Ground Roundtrip) | 100 Gbps (Optical Crosslink Throughput) | ±48 kHz (Doppler Shift Compensation) | 99.999% (Orbital Constellation Availability)