A terminal selects target random access resources from candidate sets using preset rules to expedite message transmission.
User equipment selects a common channel type for uplink transmission by attempting to acquire resources on a first channel based on received instructions.
A communication device determines sensing sections based on aperiodic traffic information to detect D2D resources efficiently.
Segmenting RA-RNTI calculation by repetition level offsets enables terminals to distinguish PDCCHs, reducing missed detections and false alarms.