3GPP 23.501 v20.2.0 — the document's own text
5.44.3.2 Session management related policy control
Taught in 24. Networks that are not for everybody (The 5G system architecture, in depth).
For PIN indirect communication and PIN-DN communication via PEGC and 5G network with PDU session, the 5G network supports the session policy control. The policy control is based on session management procedures as specified in TS 23.502 [3] and TS 23.503 [45].
An AF for PIN may provide QoS parameters for PIN traffic to 5GC as specified in clauses 4.15.6.6, 4.15.6.6a and 4.15.6.14 of TS 23.502 [3].
An AF for PIN may influence traffic routing for PDU sessions for PIN-DN communication as specified in clause 5.6.7 and in clause 4.3.6 of TS 23.502 [3].