Methods and related devices for handling random access procedure in bandwidth part switching operation

A User Equipment (UE) comprising:

• one or more non-transitory computer-readable media having computer-executable instructions embodied thereon;
• and
• at least one processor coupled to the one or more non-transitory computer-readable media, and configured to execute the computer-executable instructions to:
• receive Downlink Control Information (DCI) via a Physical Downlink Control Channel (PDCCH) when performing a first Random Access (RA) procedure on a first Bandwidth Part (BWP), the DCI including a BWP switching indication;
• and
• perform at least one of a plurality of procedures in response to the BWP switching indication, the procedures comprising:
• stopping the first RA procedure on the first BWP and initiating a second RA procedure on a second BWP indicated by the BWP switching indication;
• and
• ignoring the BWP switching indication to continue with the first RA procedure.