The present disclosure relates to a cell reselection in wireless communications. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system, the method comprises: receiving a connection release message from a network upon which the wireless device leaving a connected state; receiving a configuration of a threshold range from the network; receiving information for identities (IDs) of higher priority cells from the network; identifying a highest ranked cell among a plurality of neighbor cells based on a result of a measurement on the plurality of neighbor cells; identifying one or more neighbor cells among the plurality of neighbor cells whose ranking value is within the threshold range of a ranking value of the highest ranked cell; and performing a cell reselection to a cell among the one or more neighbor cells based on that an ID of the cell is included in the IDs of higher priority cells.