3GPP 23.501 v20.2.0 — the document's own text
5.19.5.1 General
Taught in 27. Overload, energy, deployment and the rest (The 5G system architecture, in depth).
The AMF shall contain mechanisms for avoiding and handling overload situations. This includes the following measures:
- N2 overload control that could result in RRC reject, RRC Connection Release and unified access barring.
- NAS congestion control.