Various schemes pertaining to conditions on LBT impact on MAC counters in mobile communications involve a user equipment (UE) determining a status of a listen-before-talk (LBT) failure detection and recovery feature. Based on the status of the LBT failure detection and recovery feature (e.g., whether the LBT failure detection and recovery feature is configured or not configured), a preamble transmission counter in a random access (RA) procedure or a scheduling request (SR) counter in a SR procedure is conditionally incremented in the event of an LBT failure.