SatelliteBackhaul: 캐리어급 3GPP 위성 백홀 및 엣지 코어 트래픽 분산

SatelliteBackhaul은 고처리량 LEO/GEO 위성 피더 링크를 통해 격오지 4G/5G 통신탑, 원양 크루즈선 및 도서 지역을 통신사 등급으로 연결합니다.

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)

통신사급 위성 백홀, 3GPP 5G 피더 링크 및 격오지 셀룰러 기지국 연계

Core Engineering Areas

OpenRAN 7.2x and Option-2 Split Over Satellite — Core engineering and protocols for OpenRAN 7.2x and Option-2 Split Over Satellite.
GTP Acceleration, Header Compression & TCP Proxy — Core engineering and protocols for GTP Acceleration, Header Compression & TCP Proxy.
Edge User Plane Function (UPF) & Local Breakout (LBO) — Core engineering and protocols for Edge User Plane Function (UPF) & Local Breakout (LBO).

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