Thus, various attempts have been made to apply 5G communication systems to IoT networks. For example, 5G communication technology such as a sensor network, M2M, MTC, etc., has been implemented by a scheme such as beamforming, MIMO, array antennas, and so forth. The application of cloud radio access network (RAN) as a Big Data processing technology may also be an example of the convergence of 5G technology and IoT technology.

As various services have been provided owing to the development of mobile communication systems as described above, a scheme for efficiently using a non-public network (NPN) for providing such various services using a self-network in a place like a factory, a school, a company, etc. is required. The NPN may be classified into a standalone NPN (SNPN) and a public network integrated NPN (PNINPN).

The above information is presented as background information only to assist with an understanding of the disclosure. No determination has been made, and no assertion is made, as to whether any of the above might be applicable as prior art with regard to the disclosure.

Aspects of the disclosure are to address at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the disclosure is to provide a method and apparatus for effectively providing a service by using a non-public network (NPN) in a wireless communication system.

Another aspect of the disclosure is to provide a method and apparatus for efficiently selecting a network that is available to a terminal (or user equipment) in an NPN system.