In a communications device a wireless access interface provides a primary carrier within a first frequency range, forming a primary cell providing a contiguous set of communications resources across the first frequency range. A controller is configured to generate data representing an estimation of a location of a communications device, to detect signals received within one or more predefined candidate channels within a second frequency range different and mutually exclusive from the first frequency range at the estimated location, each of the candidate channels in the second frequency range representing a minimum unit of communications resource. The controller generates, for each of the one or more candidate channels, channel measurement information from the signals detected within the candidate carrier at the estimated location, and transmits the channel measurement information with an indication of the estimated location of the communications device for each of the candidate channels to the infrastructure equipment.