5G Non-Terrestrial Network (NTN) Procedures
This 5G non-terrestrial network (ntn) procedures page groups the main procedures used in this part of the 5G signaling library so you can jump quickly into the right flow for learning, trace reading, or troubleshooting.
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What This Covers
Provides a place for satellite and other non-terrestrial 5G procedures where large delay, orbital mobility, and NTN-specific access handling must be managed.
These procedures are useful when you want a focused view of one 5G signaling family rather than the full 5G library.
Use this category page to jump into the main non-terrestrial network (ntn) procedures procedures without scanning the broader 5G call flow library.
NTN Registration and Entry
Procedures that bring the UE into service over non-terrestrial access.
- NTN Registration — Satellite network registration
NTN Mobility and Timing
Procedures that handle large-delay timing behavior and continuity over non-terrestrial paths.
- NTN Handover / Mobility Handling — Satellite mobility and continuity handling
- NTN Timing Advance / Access Timing Handling — Large propagation delay and timing management