NTNSpace: Charges Utiles gNodeB Régénératives dans l'Espace & Segment Spatial

NTNSpace standardise les charges utiles satellitaires régénératives exécutant le traitement bande de base 5G gNodeB en orbite.

NTNSpace Regenerative gNodeB Spacecraft Payload Architecture

Complete on-orbit 3GPP Release 17 DU/CU baseband stack executing on radiation-hardened FPGAs

Central System: Active Multi-Beam RF Front-End - Cryo-cooled low noise amplifiers and digital beamformers

Network Nodes

Active Multi-Beam RF Front-End
Radiation-Tolerant Baseband FPGA
Containerized O-DU / O-CU Engine
Terabit Optical Crosslink Router

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)

Architecture Réseau du Segment Spatial, Charges Utiles gNodeB Régénératives & SDR

Core Engineering Areas

Regenerative vs. Transparent (Bent-Pipe) Architectures — Core engineering and protocols for Regenerative vs. Transparent (Bent-Pipe) Architectures.
Spaceborne High-Throughput LDPC and Polar Decoding — Core engineering and protocols for Spaceborne High-Throughput LDPC and Polar Decoding.
OpenRAN Disaggregation in Satellite Payloads (O-DU / O-CU) — Core engineering and protocols for OpenRAN Disaggregation in Satellite Payloads (O-DU / O-CU).

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