Section: 4.12b Procedures for devices that do not support 5GC NAS over WLAN access 4.12b.1 General
Content: As specified in clause 4.2.8.5 of TS 23.501[ System architecture for the 5G System (5GS) ]  [2], devices that do not support 5GC NAS signalling over WLAN access (referred to as "Non-5G-Capable over WLAN" devices, or N5CW devices for short), may access 5GC in a PLMN or an SNPN via a trusted WLAN Access Network that supports a Trusted WLAN Interworking Function (TWIF). The following clause specifies how a N5CW device can be registered to 5GC and how it can send data via a PDU Session. A N5CW device may be 5G-capable over 3GPP access, in which case it is also a 5G UE over 3GPP access.