The present invention relates to a method and a device for a New Radio (NR) access technology base station transmitting a signal in a wireless communication system. Specifically, the method comprises the steps of: checking a configuration associated with a subframe assigned to a Long Term Evolution (LTE) band; according to the checked configuration, determining a resource region in which a NR downlink signal may be assigned in the LTE band in a specific subframe shared for NR communication; and transmitting a control resource set (CORSET) via the resource region. The NR UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.