Wireless power transmitter and receiver

A network discovery and selection method of a user equipment (UE) in a wireless communication system, the network discovery and selection method comprising:

• transmitting, to a network, a network discovery and selection (NDS) rule request message requesting an NDS rule, the NDS rule request message including capability information regarding a radio access technology (RAT) type supported by the UE and location information of the UE;
• receiving, from the network node, an NDS rule response message including an NDS rule generated based on the NDS rule request message;
• and
• discovering and selecting a network based on the NDS rule,
• wherein the NDS rule includes information regarding networks available to be discovered and selected by the UE, priority of the networks, and minimum signal strength set for each network, and
• wherein at least some of the networks have different RAT types.

A network node for supporting network discovery and selection 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 further configured to:
• receive, from the UE, a network discovery and selection (NDS) rule request message requesting an NDS rule,
• transmit, to at least another network node, a policy request message requesting NDS rule generation support information for generating the NDS rule,
• receive, from the at least another network node, a policy response message including the NDS rule generation support information,
• generate an NDS rule based on the NDS rule request message and the policy response message, and
• transmit, to the UE, an NDS rule response message including the generated NDS rule,
• wherein the NDS rule includes information regarding networks available to be discovered and selected by the UE and priority information of the networks, and
• wherein at least some of the networks have different radio access technology (RAT) types.