Communications device, infrastructure equipment and methods

A method for infrastructure equipment for use in a wireless communications network, the infrastructure equipment providing a wireless access interface within a system bandwidth, the system bandwidth comprising a plurality of bandwidth parts, the method comprising:

• transmitting signals to a communications device using a plurality of activated bandwidth parts and using a plurality of activated beams,
• receiving signals from the communications device using the plurality of activated bandwidth parts, and
• receiving a beam failure indication indicating that an activated beam of the plurality of activated beams associated with a first activated bandwidth part of the plurality of activated bandwidth parts satisfies beam failure criteria, the beam failure indication having been transmitted using communications resources associated with a second activated bandwidth part of the plurality of activated bandwidth parts that is active at a same time as said first activated bandwidth part,
• wherein each of the plurality of activated bandwidth parts is either a default bandwidth part having a highest activation priority or a non-default bandwidth part having an activation priority which is lower than the activation priority of a default bandwidth part, and the first activated bandwidth part is the default bandwidth.

A method for a communications device for use in a wireless communications network, the wireless communications network comprising an infrastructure equipment providing a wireless access interface within a system bandwidth, the system bandwidth comprising a plurality of bandwidth parts, the method comprising:

• transmitting signals using a plurality of activated bandwidth parts,
• receiving signals using the plurality of activated bandwidth parts, the received signals being signals transmitted using a plurality of activated beams,
• determining that an activated beam of the plurality of activated beams associated with a first bandwidth part of the plurality of activated bandwidth parts satisfies beam failure criteria,
• responsive to said determining that the activated beam associated with the first bandwidth part satisfies the beam failure criteria, selecting from the plurality of activated bandwidth parts a second bandwidth part that is active at a same time as said first bandwidth part, and
• transmitting using communications resources associated with the selected second bandwidth part a beam failure indication indicating that the activated beam associated with the first bandwidth part satisfies the beam failure criteria, wherein
• the first bandwidth part is associated with a subset of the plurality of activated beams, and
• the beam failure indication indicates that all activated beams associated with the first bandwidth part satisfy the beam failure criteria.