Engineering Satellite Direct-to-Device Services Fundamentals Training by Tonex
Modern mobile users expect connectivity everywhere, including beyond terrestrial coverage. This advanced two-day program builds a full-stack engineering view of 5G NR-NTN direct-to-device (D2D) services—from satellite payload and RF link specifics to protocol behavior, timing, and performance at LEO altitudes. The course explains Doppler pre-compensation, timing advance, uplink waveform optimization, and coexistence with terrestrial systems to achieve reliable messaging and data. Security is treated as a first-class design constraint: we examine jamming resistance, signaling protection, and secure key management across space and ground segments. You’ll learn how cybersecurity controls map to 3GPP NR-NTN procedures and how to harden D2D operations end-to-end.
Learning Objectives:
- Explain D2D system options and NR-NTN integration choices
- Engineer payload, antenna, and RF chains for direct-to-phone links
- Design Doppler and timing strategies suitable for LEO dynamics
- Optimize access, mobility, and HARQ under long RTT and fast fades
- Validate service KPIs for SMS, emergency messaging, IoT, and data
- Assess cybersecurity impact across NTN signaling, payload, and user plane with practical mitigations
Audience:
- Satellite Systems Engineers
- RF and Payload Engineers
- Core/Radio Network Engineers
- IoT and Device Engineers
- Product and Test Engineers
- Cybersecurity Professionals
Course Modules:
Module 1: System Architecture
- Direct-to-cell vs relay vs gateway paths
- 3GPP NR-NTN architectural options
- NTN protocol stack adaptations
- PHY/MAC deltas for D2D operation
- Space/ground segment interfaces
- Capacity and coverage trade-offs
Module 2: RF & Payload
- Antenna patterns for handset links
- High-EIRP payload constraints
- Multibeam shaping and steering
- Power control across spot beams
- Uplink PAPR and amplifier limits
- Link budget for 600–2100 MHz
Module 3: Performance Engineering
- Timing uncertainty and TA extension
- LEO Doppler estimation and pre-comp
- RACH procedures in NTN contexts
- HARQ under 1,000–2,000 km RTT
- Mobility across beams and orbits
- KPI targets and margining rules
Module 4: Service Engineering
- SMS and emergency message flows
- 5G NTN data bearer enablement
- IoT messaging profiles over D2D
- Device capability and RF budgets
- Ground gateway backhaul options
- Service assurance and alarms
Module 5: Interference & Coexistence
- Adjacent-band and in-band coexistence
- GNSS, aero, maritime interference risks
- Beam edge interference mitigation
- Spectrum masks and emissions limits
- Terrestrial-NTN coordination tactics
- Anti-jamming and resilience design
Module 6: Testing & Compliance
- Over-the-air conformance concepts
- Timing/Doppler validation methods
- Payload and RF linearity checks
- Protocol trace and KPI analytics
- Regulatory and spectrum compliance
- Reliability and availability modeling
Ready to bring direct-to-device from concept to fieldable service? Enroll now to secure your seat and accelerate your D2D NR-NTN deployment with Tonex.