Study on Enhancements to the Service-Based Architecture
This technical report studies and evaluates architecture enhancements on potential optimizations to the Release 15 Service-Based Architecture (SBA) in order to provide higher flexibility and better modularization of the 5G System for the easier definition of different network slices and to enable better re-use of the defined services. Moreover, the technical report considers mechanisms in order to better support automation and high reliability of network function service(s). The following aspects are covered:
- Optimizing the modularization of the system to improve its agility.
- Extending the service concept from 5GC control plane to the user plane function(s).
- Further improvements to service framework related aspects.
- Architectural support for highly reliable deployments, considering.
- Study backward and forward compatibility implications resulting from the above bullets.