3GPP 24.501 v20.0.0 — the document's own text
8.3.1.14 Ethernet header compression configuration
Taught in 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview).
The UE shall include the Ethernet header compression configuration IE if:
- the PDU session type value of the PDU session type IE is set to "Ethernet";
- the UE indicated "Control Plane CIoT 5GS optimization supported" and "Ethernet header compression for control plane CIoT 5GS optimization supported" in the 5GMM capability IE of the REGISTRATION REQUEST message; and
- the network indicated "Control plane CIoT 5GS optimization supported" and "Ethernet header compression for control plane CIoT 5GS optimization supported" in the 5GS network support feature IE of the REGISTRATION ACCEPT message.