3GPP 24.501 v20.0.0 — the document's own text
5.4.5.2.1 General
Taught in 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview).
The purpose of the UE-initiated NAS transport procedure is to provide a transport of:
c1) an SLPP message;
- an SOR transparent container;
- a UE policy container;
- a UE parameters update transparent container;
- a location services message;
- a CIoT user data container;
- a Service-level-AA container;
- a UPP-CMI container; or
- multiple of the above types.
and:
- for a) to e), g) and h), optional associated payload routing information from the UE to the AMF in a 5GMM message; and
- for k), the Payload container IE consists a list of payload container entries, where each of the payload container entry contains the payload and optional associated payload routing information (e.g. PDU session information for 5GSM message payload).