NTN Satellite: Elaborazione di Bordo Rigenerativa, Payload gNodeB e Transponder Software-Defined

NTNSatellite descrive la transizione dai transponder trasparenti analogici a carichi utili rigenerativi completamente digitali che eseguono demodulazione PHY, commutazione di pacchetto e funzioni 5G Core in orbita.

NTNSatellite System Architecture

Core architectural topology and protocol interaction of ntnsatellite.com

Central System: Space gNodeB - Regenerative Payload

Network Nodes

Radiation FPGA
Onboard 5G Core
Laser Cross-Link
Digital Channelizer
Direct Decryption

Architectural Protocol Layers

User & Terminal Access Layer (3GPP Rel-17/18 NR-NTN & IoT-NTN): Direct communication from smartphones and IoT sensors to satellites
Space-Borne Radio Access (gNodeB / Transponder) (Regenerative Digital Payloads & Bent-Pipe Transparent Processing): In-orbit demodulation, digital beamforming, and spectrum channelization
Inter-Satellite Mesh & Space Transport (Optical Inter-Satellite Links (OISL) & 60 GHz V-Band Cross-Links): Autonomous multi-hop laser packet routing in vacuum at the speed of light
Ground Teleport & Core Cloud Ingress (High-Throughput Q/V-Band Gateways & Optical Ground Stations): Terabit feeder link downlinks connected directly to cloud hyperscalers

Key Metrics: 100 Gbps+ (Optical Cross-Link Bandwidth) | <25 ms (LEO Propagation Latency) | ±50 kHz (Doppler Shift Compensation) | 99.999% (Constellation Transport SLA)

Dimezzare la latenza con l'elaborazione dei pacchetti a bordo

Core Engineering Areas

Regenerative Payload Processing — Implementing LDPC and Polar decoders on radiation-tolerant Xilinx Versal and Microchip RTG4 silicon.
Software-Defined Transponders — Reconfiguring satellite spectrum allocations and beam powers on-the-fly via ground telemetry commands.
Onboard 5G Core & gNodeB — Running Kubernetes pods in orbit to handle local subscriber authentication and direct terminal-to-terminal voice.

Technical Articles

Related Cluster Architecture Specifications

NonTerrestrialNetwork — 3GPP 5G/6G NTN Satellite Architecture, Direct-to-Cell & Non-Terrestrial Infrastructure
NonTerrestrialNetworks — Multi-Orbit Heterogeneous Constellation Interworking (LEO / MEO / GEO / HAPS)
AirspaceSync — Doppler Compensation, Relativistic Timing & Airspace-Space Synchronization
FSOComm — Free Space Optics, High-Bandwidth Space Laser Communications & Atmospheric Mitigation