3GPP 23.501 v20.2.0 — the document's own text

5.52.1 General

Taught in 27. Overload, energy, deployment and the rest (The 5G system architecture, in depth).

This clause specifies the scenario of a non-3GPP device connecting through the UE. In this scenario, QoS differentiation of traffic is applied to the traffic that originates from or is directed to the non-3GPP device. The non-3GPP device does not use NAS and is not authenticated by the 5GC.

The support of Differentiated QoS for non-3GPP devices connecting behind a 5G-RG is specified in clause 4.10e of TS 23.316 [84].

The Non-3GPP Device Identifier is unique within the scope of the UE's SUPI.

In this Release of the specification, QoS differentiation for a non-3GPP device connecting behind a UE is not supported in LBO roaming scenario.