OISLCommは光衛星間リンク（OISL）を標準化し、1550nmコヒーレント光トランシーバーを用いて100Gbps〜1Tbpsの軌道間クロスリンクを実現します。
OISLComm 100 Gbps Coherent Intersatellite Optical Crosslink
Sub-micro-radian acquisition, tracking, and pointing (ATP) pipeline between orbital planes
Central System: 1550nm DFB Seed Laser - Radiation-hardened EDFA booster (+33 dBm)
Network Nodes
- 1550nm DFB Seed Laser
- Fast Steering Mirror (FSM)
- Coherent Optical DSP
- Orbital Ephemeris Pointing
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)