A communications device comprises transceiver circuitry configured to transmit signals to and receive signals from a wireless communications network via a wireless access interface of the wireless communications network, and controller circuitry configured in combination with the transceiver circuitry to determine uplink communications resources of the wireless access interface to be used for the transmission of data by the communications device, to receive a plurality of uplink cancellation indicators that each indicate that at least a portion of the uplink communications resources is allocated for the transmission of signals by another communications device and is located within communications resources of one of a plurality of reference regions, and to determine, in accordance with dimensions of a first reference region and dimensions of a second reference region, that at least a portion of the uplink communications resources is allocated for the transmission of signals by another communications device.