Abstract: The disclosure provides a method of transmitting downlink (DL) control information, the method including: transmitting configuration information about a CORESET in which DL control information is to be transmitted; mapping the DL control information to a plurality of resource elements (REs) in the CORESET determined based on the configuration information; and transmitting the DL control information via the plurality of REs.

Abstract: Disclosed is a 5G or a pre-5G communication system provided to support a higher data transmission rate than a 4G communication system such as LTE. A method and an apparatus are provided for transmitting and receiving a downlink control channel in a wireless communication system. The method includes transmitting, on a first resource region, a detection signal indicating that a downlink control channel is transmitted; and transmitting a signal of the downlink control channel on a search space related to the first resource region.

Abstract: A system and method is for transmitting multi-carriers in a wireless communication system with a relay are provided. The method includes configuring each of downlink carriers that form the multi-carriers as at least one general sub-frame and at lest one backhaul sub-frame; determining one of the downlink carriers that has a maximum number of backhaul sub-frames, as a primary carrier, and other downlink carriers as sub-carriers; and altering a backhaul sub-frame into a general sub-carrier in the sub-carrier, in response to a general sub-frame of the primary carrier.