SatelliteBackhaul: Операторский спутниковый бэкхол 3GPP и разгрузка трафика

SatelliteBackhaul обеспечивает прозрачную интеграцию удаленных базовых станций gNodeB через созвездия LEO со сжатием заголовков и ускорением протокола QUIC.

SatelliteBackhaul 3GPP NR-NTN Feeder & Core Offload Topology

Direct gNodeB split architecture terminating GTP-U tunnels via LEO satellites

Central System: Remote 5G gNodeB (Cell Tower) - Standard O-RAN Distributed Unit (O-DU) at cell site

Network Nodes

  • Remote 5G gNodeB (Cell Tower)
  • Ka/Q-Band Satellite Terminal
  • LEO Regenerative Payload
  • Terrestrial 5G Core Network (5GC)

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)

Carrier-Grade Satellite Backhaul, 3GPP 5G Feeder Links & Remote Cellular Connectivity

Core Engineering Areas

Technical Articles

Related Cluster Architecture Specifications