Method for selecting resource operation preferred by user in wireless communication system and device for same

A network node for configuring a resource of a user equipment (UE) in a wireless communication system, the network node 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:
• receive resource preference information of the UE;
• configure a resource for the UE based on the resource preference information, and select a specific resource operation unit among a plurality of resource operation units according to the resource preference information of the UE based on the plurality of resource operation units in which an entire available resource range is divided into a predetermined number being configured for the UE;
• and
• transmit, to the UE, a result of configuring the resource for the UE,
• wherein the resource preference information:
• is network assistance information for indicating a resource operation scheme preferred by the UE;
• and
• indicates a performance centric representing a preference for a resource operation that prioritizes a performance of the UE, or an energy centric representing a preference for a resource operation that prioritizes resource saving of the UE,
• wherein the network node corresponds to a mobility management (MM) for managing a mobility of the UE, a session management (SM) for managing a session of the UE, or an access node (AN) for serving the UE, and
• wherein the network node is further configured to configure the resource for the UE based on the resource preference information by:
• based on the resource preference information indicating the performance centric, selecting an always-on protocol data unit (PDU) session scheme that maintains the session for the UE regardless of whether the session is used by the UE, and
• based on the resource preference information indicating the energy centric, selecting an on-demand PDU session scheme that releases the session when the session is not used by the UE for a predetermined time.