Control channel and data channel transmission/reception method and apparatus for NR system

One or more non-transitory computer readable storage media encoded with instructions that, when executed by a processor, cause the processor to perform operations, comprising:

• transmitting, by a base station to a wireless device, one or more radio resource control (RRC) signals indicating a number of first bandwidth parts and a number of second bandwidth parts configured for the wireless device;
• determining, based on the number of the first bandwidth parts configured for the wireless device, a bitwidth of a first indicator field of a first downlink control information (DCI);
• generating, based on the bitwidth, the first DCI comprising a value, for the first indicator field, that indicates at least one of the first bandwidth parts, wherein the value for the first indicator field is associated with one or more resources of the at least one of the first bandwidth parts;
• determining, based on the number of the second bandwidth parts configured for the wireless device, a second bitwidth of a second indicator field of a second DCI;
• generating, based on the second bitwidth, the second DCI comprising a value, of the second indicator field, that indicates at least one of the second bandwidth parts, wherein the value of the second indicator field is associated with one or more second resources of the at least one of the second bandwidth parts,
• transmitting, to the wireless device, the first DCI and the second DCI, and
• performing a first data communication with the wireless device and, based on the one or more second resources, a second data communication with the wireless device.