Method and apparatus for configuring session connection mode using network data analytics function in wireless communications system

A method performed by a session management function (SMF) in a mobile communication system, the method comprising:

• transmitting, to a network data analytics function (NWDAF), a message requesting a subscription to a data analysis service related to a service and session continuity mode selection policy (SSCMSP);
• transmitting, to the NWDAF, network data provided by a network data provision service of the SMF;
• and
• receiving, from the NWDAF, analytics for the SSCMSP,
• wherein the analytics for the SSCMSP are based on the network data and user equipment (UE) data collected by a UE for the data analysis service.

A method performed by a user equipment (UE) in a mobile communication system, the method comprising:

• receiving a message for a UE data collection setup triggered by a network data analytics function (NWDAF);
• collecting UE data for a data analysis service related to a service and session continuity mode selection policy (SSCMSP) based on the message for the UE data collection setup;
• and
• transmitting the collected UE data for the data analysis service.

A network data analytics function (NWDAF) in a mobile communication system, the NWDAF comprising:

• a transceiver;
• and
• a controller configured to:
• receive, from a session management function (SMF), via the transceiver, a message requesting a subscription to a data analysis service related to a service and session continuity mode selection policy (SSCMSP),
• obtain network data provided by a network data provision service of the SMF and user equipment (UE) data collected by a UE for the data analysis service,
• generate analytics for the SSCMSP based on the network data and the UE data, and
• transmit, to the SMF, via the transceiver, the analytics for the SSCMSP.

A session management function (SMF) in a mobile communication system, the SMF comprising:

• a transceiver;
• and
• a controller configured to:
• transmit, to a network data analytics function (NWDAF), via the transceiver, a message requesting a subscription to a data analysis service related to a service and session continuity mode selection policy (SSCMSP),
• transmit, to the NWDAF, via the transceiver, network data provided by a network data provision service of the SMF, and
• receive, from the NWDAF, via the transceiver, analytics for the SSCMSP,
• wherein the analytics for the SSCMSP are based on the network data and user equipment (UE) data collected by a UE for the data analysis service.

A user equipment (UE) in a mobile communication system, the UE comprising:

• a transceiver;
• and
• a controller configured to:
• receive, via the transceiver, a message for a UE data collection setup triggered by a network data analytics function (NWDAF),
• collect UE data for a data analysis service related to a service and session continuity mode selection policy (SSCMSP) based on the message for the UE data collection setup, and
• transmit, via the transceiver, the collected UE data for the data analysis service.