Methods and apparatuses for event monitoring

A method implemented at a subscriber management node, the method comprising:

• receiving, from a network exposure node of a 3rd Generation Partnership Project (3GPP) wireless communication network, a request for monitoring an event of communication failure for a terminal device, wherein the request includes a connection identity (ID) for identifying a connection between the terminal device and a server subscribing to the monitoring the event of communication failure, and wherein the network exposure node obtains the connection ID based on a request from the server to monitor the event of communication failure, in which the request from the server comprises an Internet protocol (IP) address and an IP domain of the terminal device to identify the terminal device;
• and
• sending, to a mobility management node or a session management node, an instruction for monitoring communication failure between the terminal device and the server, wherein the instruction includes the connection ID or a second ID, wherein the second ID is associated with the connection ID and identifies the connection between the terminal device and the server and wherein:
• the server is a service capability server (SCS) or an application server (AS), in which the connection ID is an access point name (APN);
• or
• the server is an application function (AF), in which the connection ID is a combination of a data network name (DNN) and a single network slice selection assistance information (S-NSSAI).

A network exposure node of a 3rd Generation Partnership Project (3GPP) wireless communication network, comprising:

• at least one processor;
• and
• at least one memory, the at least one memory containing instructions executable by the at least one processor to cause the network exposure node to:
• receive, from a server, a first request for monitoring an event of communication failure for a terminal device, wherein the first request comprises an Internet protocol (IP) address and an IP domain of the terminal device to identify the terminal device;
• obtain a connection identity (ID) for identifying a connection between the terminal device and the server, based on the received first request from the server;
• and
• send, to a subscriber management node or a policy decision node, a second request for monitoring the event of communication failure between the terminal device and the server, wherein the second request includes the connection ID and wherein:
• the server is a service capability server (SCS) or an application server (AS), in which the connection ID is an access point name (APN);
• or
• the server is an application function (AF), in which the connection ID is a combination of a data network name (DNN) and a single network slice selection assistance information (S-NSSAI).