ATIS 1000103.v002

The National Security / Emergency Preparedness (NS/EP) Data Transport Service enables an NS/EP Service Provider to provide acceptable throughput and performance to the Service User for applications using the Default QoS Flow within a designated PDU Session in the 5G System (5GS) during periods of severe network congestion when normal commercial data service is degraded.
This Technical Report (TR) analyzes NS/EP Data Transport Service invocation / revocation for several use case scenarios and identifies the implied requirements on the 5GS, in order to facilitate a common approach for NS/EP Data Transport Service invocation / revocation across multiple NS/EP Service Providers.