Serving node relocating method in wireless communication system and device for same

A method for relocating, by a first serving node, a serving node in a wireless communication system, the method comprising:

• receiving a first message related to a location update of a user equipment (UE) from the UE;
• transmitting a second message for requesting the location update of the UE to a first network node, when the first serving node having received the first message is different from a second serving node that is an old node;
• and
• transmitting a third message to a second network node in response to the second message, when the first serving node is different from the second serving node that is the old node and a connection for transmitting/receiving non-Internet protocol (non-IP) data via the second network node is configured for the UE.

A first serving node for relocating a serving node in a wireless communication system, the node comprising:

• a transceiver for transmitting/receiving signals;
• and
• a processor for controlling the transceiver,
• wherein the processor is configured:
• to receive a first message related to a location update of a user equipment (UE) from the UE;
• to transmit a second message for requesting the location update of the UE to a first network node, when the first serving node having received the first message is different from a second serving node that is an old node;
• and
• to transmit a third message to a second network node in response to the second message, when the first serving node is different from the second serving node that is the old node and a connection for transmitting/receiving non-Internet protocol (non-IP) data via the second network node is configured for the UE.