Section: 5.2.8.2.4 Nsmf_PDUSession_Release service operation
Content: Service operation name: Nsmf_PDUSession_Release. Description: It causes the immediate and unconditional deletion of the resources associated with the PDU Session. This service operation is used by V-SMF to request the H-SMF or used by I-SMF to request the SMF to release the resources related to a PDU Session for the serving network initiated PDU release case (e.g. implicit De-registration of UE in the serving network). Input, Required: SM Context ID. Input, Optional: Secondary RAT Usage Data, N4 information. Output, Required: Result Indication. Output, Optional: Small Data Rate Control Status, APN Rate Control Status. See clause 4.3.4.3 for an example usage of this service operation.