3GPP 24.501 v20.0.0 — the document's own text
8.2.7.39 Negotiated WUS assistance information
Taught in 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview).
The network shall include the Negotiated WUS assistance information IE if:
- the UE supports WUS assistance information;
- the AMF supports and accepts the use of WUS assistance information;
- the UE is not performing the initial registration for emergency services; and
- the UE does not have an active emergency PDU session.