3GPP 24.501 v20.0.0 — the document's own text

D.5.4.1 Message definition

Taught in 5. Finding your way around TS 24.501 (CT1 — the group that writes what your phone says, in depth), 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview).

The UE STATE INDICATION message is sent by the UE to the PCF:

to deliver the UPSI(s) of the UE policy section(s) stored in the UE;
to indicate whether the UE supports ANDSP;
to indicate whether the UE supports URSP provisioning in EPS in the UE policy classmark IE;

c1) to indicate whether the UE supports VPS URSP;

c2) to indicate whether the UE supports reporting URSP rule enforcement;

to deliver the UE's one or more OS IDs; and
to indicate whether UE supports the extended 802.1Q C-TAG/S-TAG PCP/DEI traffic descriptor;

see table D.5.4.1.1.

Message type: UE STATE INDICATION

Significance: dual

Direction: UE to network

Table D.5.4.1.1: UE STATE INDICATION message content

IEI	Information Element	Type/Reference	Presence	Format	Length
	PTI	Procedure transaction identity9.6	M	V	1
	UE STATE INDICATION message identity	UE policy delivery service message typeD.6.1	M	V	1
	UPSI list	UPSI listD.6.4	M	LV-E	2-65531
	UE policy classmark	UE policy classmarkD.6.5	M	LV	2-4
41	UE OS Id	OS IdD.6.6	O	TLV	18-242
NOTE: The total length of the UE STATE INDICATION message content cannot exceed 65535 octets (see Payload container contents maximum length as specified in table 9.11.3.39.1).