A disclosure of the present specification provides a method of performing communication related to a network slice by a UE. The method may comprise the steps of receiving, from a network, network slice information of a serving cell and network slice information of a neighboring cell; determining that the neighboring cell provides a first network slice that the UE is to use; performing first measurement for a signal of the service cell and second measurement for a signal of the neighboring cell; and determining, on the basis of the first measurement and the second measurement, whether to select the neighboring cell.