Section: 4.11.0a.2a.9 UE Policy Association termination initiated by the PCF for a UE
Content: The procedure is based on clause 4.16.13.2 (UE Policy Association Termination initiated by the PCF procedure) with the following differences: In the non-roaming case, the V-PCF is not involved, the AMF is replaced by the PCF for the PDU Session, and the role of the H-PCF is performed by the PCF for the UE. For the LBO roaming scenarios, the AMF is replaced by the V-PCF for the PDU Session, the role of the V-PCF is performed by the V-PCF for the UE. In the Home Routed roaming scenario, the V-PCF is not involved. The AMF is replaced by the PCF for PDU Session in HPLMN, and the role of the H-PCF for the UE is performed by the PCF for the UE in HPLMN. When the UE is in EPS, the UE Policy Association has been established by the (V-) PCF for PDU Session as described in clause 4.11.0a.2a.5. - Step 4: Change the AMF to the PCF for PDU Session. The PCF for UE may notify the PCF for PDU Session of the removal of the UE Policy Association via Npcf_UEPolicyControl_UpdateNotify service operation. - Step 5: Change the AMF to the PCF for PDU Session. - Step 6: Change AMF to the PCF for PDU Session and refer to the step 2 to step 5 in clause 4.11.0a.2a.8.