Communications devices, infrastructure equipment and methods for communicating via an access interface divided into multiple bandwidth parts

A communications device for communicating via a wireless access interface, the wireless access interface comprising:

• a plurality of bandwidth parts, each of the bandwidth parts of the plurality of bandwidth parts being smaller than and within a carrier bandwidth of the wireless access interface, the plurality of bandwidth parts of the plurality of bandwidth parts comprising a default bandwidth part and at least two non-default bandwidth parts which are not always active, the communications device comprising transceiver circuitry and controller circuitry configured in combination
• to receive signals using the at least two non-default bandwidth parts, the at least two non-default bandwidth parts at least partially overlapping in time resources of the wireless access interface, wherein at least a portion of one of the two non-default bandwidth parts is nested within the default bandwidth part,
• to determine that a first non-default bandwidth part of the at least two non-default bandwidth parts is deactivated, and
• to receive the signals via at least a second non-default bandwidth part of the non-default bandwidth parts in preference to receiving the signals from the default bandwidth part,
• wherein the other of the at least two non-default bandwidth parts is always active in the time resources of the wireless access interface within a first time, and all other bandwidth parts of the plurality of bandwidth parts have at least one deactivation period in the time resources of the wireless access interface within the first time.