A circuitry for a communications device for generating channel estimates from data received from an infrastructure equipment forming part of a wireless communications network, the device comprising: a receiver circuitry which operates to receive data via a wireless access interface, the wireless access interface providing a plurality of communications resource elements across a system bandwidth, which are divided in time to form a plurality of time divided radio frames, and a controller circuitry configured to control the receiver circuitry to receive, within the system bandwidth, a first section of communications resource elements within a first frequency bandwidth for allocation to machine type communication, MTC, devices to receive signals representing the data transmitted by the infrastructure equipment within the first frequency bandwidth forming a virtual carrier, the MTC devices each having a receiver bandwidth which is greater than or equal to the first frequency bandwidth but less than the system bandwidth, wherein the controller circuitry in combination with the receiver circuitry are configured to receive data symbols in a first subset of the resource elements in one or more of the radio frames, and to receive common reference signals in a second subset of the resource elements in each radio frame (704, 704'), said common reference signals being received at a first reception power; and wherein the data symbols in the virtual carrier are received at a second reception power, wherein the controller circuitry in combination with the receiver circuitry are further configured to receive specific reference signals at the second reception power in the resource elements of the virtual carrier; and characterised in that the controller circuitry is further configured to determine a difference in power between the second reception power and the first reception power, and, if the difference in power exceeds a threshold, to generate channel estimates for frequencies within the first section using only the specific reference signals. a receiver circuitry which operates to receive data via a wireless access interface, the wireless access interface providing a plurality of communications resource elements across a system bandwidth, which are divided in time to form a plurality of time divided radio frames, and a controller circuitry configured to control the receiver circuitry to receive, within the system bandwidth, a first section of communications resource elements within a first frequency bandwidth for allocation to machine type communication, MTC, devices to receive signals representing the data transmitted by the infrastructure equipment within the first frequency bandwidth forming a virtual carrier, the MTC devices each having a receiver bandwidth which is greater than or equal to the first frequency bandwidth but less than the system bandwidth, wherein the controller circuitry in combination with the receiver circuitry are configured to receive data symbols in a first subset of the resource elements in one or more of the radio frames, and to receive common reference signals in a second subset of the resource elements in each radio frame (704, 704'), said common reference signals being received at a first reception power; and wherein the data symbols in the virtual carrier are received at a second reception power, wherein the controller circuitry in combination with the receiver circuitry are further configured to receive specific reference signals at the second reception power in the resource elements of the virtual carrier; and characterised in that the controller circuitry is further configured to determine a difference in power between the second reception power and the first reception power, and, if the difference in power exceeds a threshold, to generate channel estimates for frequencies within the first section using only the specific reference signals.