Study on Enhancement of support for Edge Computing in 5G Core network; Phase 3
The present document describes key issues and solutions for the phase 3 of the system enhancements for Edge Computing in 5GS.
This technical report will document the study of potential system enhancements for enhanced edge computing support, including:
- Whether and how to support more efficient Edge Hosting Environment information management and related EAS Discovery:
- Handle the edge network and EAS related information (e.g. UPF and EAS deployment information, DNAIs) locally with less impact to 5GC central NFs (e.g. central SMF) to address more flexible EAS (re)discovery/(re)selection, local UPF (re)selection.
- Whether and how to take into account N6 Delay between the local PSA and EAS for local UPF and EAS (re)selection.
- Whether and how to support traffic sent to/from PSA after being processed by Edge Hosting Environment, e.g. when there is no communication possibility between the local part of the DN and central part of the DN (e.g. due to usage of private IP address, lack of secure tunnel); whether and how to support traffic being routed between two EASs located in two different Edge Environments when there is no pre-established communication path between the two local part of the DNs.