Method for updating ladn information in wireless communication system and device therefor

An access and mobility management function (AMF) updating local access data network (LADN) information in a wireless communication system, the AMF comprising:

• a communication module configured to transmit and receive a signal;
• and
• a processor configured to control the communication module,
• wherein the processor is configured to:
• based on an update occurring in the LADN information for a LADN service configured for a user equipment (UE), receive the updated LADN information from a network node, the updated LADN information including information on an updated LADN service area and information on an updated LADN data network name (DNN);
• and
• transmit the updated LADN information to the UE,
• wherein the AMF is determined based on the updated LADN service area.

A user equipment (UE) updating local access data network (LADN) information in a wireless communication system, the UE comprising:

• a display;
• a communication module configured to transmit and receive a signal;
• and
• a processor configured to control the display, and the communication module,
• wherein the processor is configured to:
• receive updated LADN information from an access and mobility management function (AMF), the updated LADN information including information on an updated LADN service area and information on an updated LADN data network name (DNN);
• and
• establish a packet data unit (PDU) session based on the updated LADN information to receive a LADN service for the UE,
• wherein the AMF is determined based on the updated LADN service area.