Section: 5.2.2.2.6 Namf_Communication_N1N2MessageUnSubscribe service operation
Content: Service operation name: Namf_Communication_N1N2MessageUnSubscribe. Description: An NF can unsubscribe with the AMF to stop notifying a particular N1 message type or a specific N2 information type about the UE. Input, Required: CN NF ID, N1 Message Type Input, Optional: None. Output, Required: None. Output, Optional: None. The consumer NF invokes the Namf_Communication_N1MessageUnSubscribe service operation (NF ID, N1 message type or N2 information type to subscribe) on the AMF. The AMF deletes the binding for the consumer NF for the requested N1 message type. NOTE: Whether UnSubscribe Ack need a separate message or be realized in the transport layer will be determined in TS 29.518[ 5G System; Access and Mobility Management Services; Stage 3 ]  [18].