Section: 5.2.5.4.5 Npcf_SMPolicyControl_Update service operation
Content: Service operation name: Npcf_SMPolicyControl_Update. Description: The NF Service Consumer can request the update of the SM Policy Association to receive updated Policy information for the PDU Session. Inputs, Required: SM Policy Association ID. Inputs, Optional: Information on the Policy Control Request Trigger condition that has been met, as defined in clause 6.1.3.5 of TS 23.503[ Policy and charging control framework for the 5G System (5GS); Stage 2 ]  [20]. W-5GAN specific PDU Session information provided by the SMF is specified in TS 23.316[ Wireless and wireline convergence access support for the 5G System  (5GS) ]  [53]. Outputs, Required: Success or not. Outputs, Optional: Policy information for the PDU Session as defined in TS 23.503[ Policy and charging control framework for the 5G System (5GS); Stage 2 ]  [20] and Policy Control Request Trigger(s) of SM Policy Association as defined in clause 6.1.3.5 of TS 23.503[ Policy and charging control framework for the 5G System (5GS); Stage 2 ]  [20] and UE Policy Container. See clause 4.16.5.1 for the usage of this service operation. NOTE: When this service operation is invoked by SMF, race conditions apply, which are defined in TS 29.513[ 5G System; Policy and Charging Control signalling flows and QoS parameter mapping; Stage 3 ]  [47].