NTN Direct-to-Device: 让普通未改装智能手机直连低轨卫星星座
NTNComm 领航手机直连卫星工程落地,深度解构消费级智能手机 0.2W 发射天线下极限链路预算、3GPP Band 25/70/65 频谱重构以及海量低功耗 IoT-NTN 物联网遥测链路。
NTNComm 系统架构
Core architectural topology and protocol interaction of ntncomm.com
Central System: D2D Space Link - Direct-to-Cell
Network Nodes
- Standard Phone
- Giant LEO Reflector
- S/C-Band MSS
- NB-IoT Carrier
- Emergency SOS
Architectural Protocol Layers
- 用户与终端接入层 (3GPP Rel-17/18 NR-NTN & IoT-NTN): 智能手机和物联网传感器到卫星的直接连接
- 星载无线电接入层 (gNodeB / 转发器) (Regenerative Digital Payloads & Bent-Pipe Transparent Processing): 在轨解调、数字波束赋形和信道化处理
- 星间网状网与空间传输层 (Optical Inter-Satellite Links (OISL) & 60 GHz V-Band Cross-Links): 在真空中以光速进行多跳自主激光数据包路由
- 地面站网关与核心云接入层 (High-Throughput Q/V-Band Gateways & Optical Ground Stations): 直连超大规模云数据中心的太比特馈电链路下行
Key Metrics: 100 Gbps+ (星间激光链路带宽) | <25 ms (低轨卫星传播时延) | ±50 kHz (多普勒频移补偿范围) | 99.999% (星座传输服务等级 (SLA))
攻克1000公里智能手机链路预算难题
Core Engineering Areas
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