End-to-End Direct-to-Device (D2D) Satellite Service Architecture Fundamentals Training by Tonex
From Apple/Globalstar messaging to Starlink’s Direct-to-Cell and AST SpaceMobile’s broadband vision, D2D is redefining how standard phones connect beyond terrestrial coverage. This course demystifies the full stack—spectrum, link budgets, antennas, waveform options, device constraints, and service models—through an architecture-first lens. Cybersecurity considerations are woven throughout: air-interface hardening, over-the-air keying, and trust boundaries across space–ground–device segments. Participants learn how to safeguard control planes, protect payload data, and defend edge devices operating with intermittent connectivity. You’ll leave able to evaluate trade-offs, design robust D2D paths, and map 3GPP NR NTN capabilities to real commercial deployments without vendor hype.
Learning Objectives:
- Explain commercial D2D business models and KPIs
- Map 3GPP NR NTN features to services
- Build first-order link budgets and constraints
- Compare spectrum options and coexistence risks
- Evaluate device and antenna trade-offs
- Write requirements that address cybersecurity in space-to-device architectures
Audience:
- Satellite and RF engineers
- Wireless core/RAN engineers
- Product and solution architects
- Public safety planners
- Cybersecurity Professionals
- Technology strategists and PMs
Course Modules:
Module 1 – Commercial D2D Market
- Apple/Globalstar model
- Starlink Direct-to-Cell
- AST SpaceMobile roadmap
- Operator partnership patterns
- Roaming and billing flows
- Service KPIs and SLAs
Module 2 – Spectrum & Bands
- L/S-band MSS reuse
- 700 MHz/PCS refarming
- Cross-border coordination
- Power flux-density limits
- Interference and coexistence
- Licensing and policy trends
Module 3 – Power & Antennas
- Phone EIRP constraints
- Satellite EIRP/GAIN trade-offs
- Link budget walkthroughs
- Doppler and delay spreads
- Beam footprint strategies
- Handset antenna integration
Module 4 – Services & Protocols
- SOS/messaging workflows
- Voice circuit options
- Broadband data paths
- 3GPP NR NTN layers
- Random access procedures
- Mobility and handover logic
Module 5 – Emergency & Public Safety
- Priority and preemption
- Location and routing
- CAP/E911/E112 alignment
- Disaster-resilient backhaul
- Security of alerts
- Continuity of operations
Module 6 – Device & Modem Design
- NTN-capable basebands
- GNSS and timing aids
- HARQ and PHY tweaks
- Power management modes
- Firmware/OTA strategies
- Compliance and certification
Ready to bring resilient, secure D2D services to life? Contact Tonex to schedule this training for your team and accelerate your roadmap.