Study on integration of satellite components in the 5G architecture; Phase 3
The scope of this Technical Report is to study the following aspects of 5GS/EPS integrating of satellite component in Release 19, including:
- Regenerative payload generic architecture:
- Impact to 5GS and EPS to support gNB/eNB onboard the satellite.
- Store and Forward Satellite operation for delay tolerant services:
- The control plane and user plane enhancements if applicable, including the minimum necessary set of Core Network elements to be embedded in the satellite, to support S&F Satellite operation, both for IoT NTN (EPS) and NR NTN (5GS);
- The parameters needed to characterize and support S&F Satellite operation from a delay tolerant services perspective if applicable, both for IoT NTN (EPS) and NR NTN (5GS).
NOTE: S&F for IoT NTN will be studied first and if there is remaining time available NR NTN can then be studied.
- UE-Satellite-UE communication enhancements for 5GS, supporting NR NTN NGSO constellation with and without ISL, with feeder link always available:
- Following SA1 requirements, study how IMS enablers including mission critical can be supported;
- Minimum necessary set of 5GS network functions onboard the satellite(s) to support such UE-Satellite-UE communication.