A communications device for transmitting data to or receiving data from a wireless communications network, the communications device comprising: a transmitter configured to transmit signals to one or more infrastructure equipment of the wireless communications network via a wireless access interface, a receiver configured to receive signals from one or more of the infrastructure equipment of the wireless communications network via the wireless access interface, and a controller configured to control the transmitter and the receiver to transmit the signals and to receive the signals via the wireless access interface, wherein the wireless access interface provides communications resources arranged in time divided units of a host radio access technology, RAT, interface frequency bandwidth, the time divided units and the host RAT interface frequency bandwidth being arranged into one or more configurable virtual RAT interfaces (1000, 1002), the virtual RAT interfaces being reserved subsets of the communications resources within a narrower bandwidth than the host RAT frequency bandwidth and being within the host RAT frequency bandwidth, wherein the time divided units of the host RAT interface are time frames, each time frame comprising a plurality of sub-frames, and the virtual RAT interface bandwidth is divided into a plurality of time divided frames, each frame including a plurality of sub-frames, the controller is configured to select one of the virtual RAT interfaces; and the receiver is configured to receive the signals being transmitted via one of the virtual RAT interfaces in accordance with different communications parameters from the host RAT interface providing different characteristics for communicating data represented by the signals with respect to a characteristic of signals transmitted according to communications parameters in the communications resources of the host RAT interface, wherein each of the sub-frames of the virtual RAT interface includes a control channel region and a shared channel region, the control channel region has a temporal length equal to at least one of the sub-frames of the host RAT interface and the shared channel region has a temporal length equal to a plurality of the sub-frames of the host RAT interface. a transmitter configured to transmit signals to one or more infrastructure equipment of the wireless communications network via a wireless access interface, a receiver configured to receive signals from one or more of the infrastructure equipment of the wireless communications network via the wireless access interface, and a controller configured to control the transmitter and the receiver to transmit the signals and to receive the signals via the wireless access interface, wherein the wireless access interface provides communications resources arranged in time divided units of a host radio access technology, RAT, interface frequency bandwidth, the time divided units and the host RAT interface frequency bandwidth being arranged into one or more configurable virtual RAT interfaces (1000, 1002), the virtual RAT interfaces being reserved subsets of the communications resources within a narrower bandwidth than the host RAT frequency bandwidth and being within the host RAT frequency bandwidth, wherein the time divided units of the host RAT interface are time frames, each time frame comprising a plurality of sub-frames, and the virtual RAT interface bandwidth is divided into a plurality of time divided frames, each frame including a plurality of sub-frames, the controller is configured to select one of the virtual RAT interfaces; and the receiver is configured to receive the signals being transmitted via one of the virtual RAT interfaces in accordance with different communications parameters from the host RAT interface providing different characteristics for communicating data represented by the signals with respect to a characteristic of signals transmitted according to communications parameters in the communications resources of the host RAT interface, wherein each of the sub-frames of the virtual RAT interface includes a control channel region and a shared channel region, the control channel region has a temporal length equal to at least one of the sub-frames of the host RAT interface and the shared channel region has a temporal length equal to a plurality of the sub-frames of the host RAT interface.