3GPP 23.501 v20.2.0 — the document's own text
6.2.15 5G-EIR
Taught in 4. What each network function does (The 5G system architecture, in depth), 2. Who does what in the core (The 5G system architecture, overview).
The 5G-EIR is an optional network function that supports the following functionality:
- Check the status of PEI (e.g. to check that it has not been prohibited).