The present disclosure describes systems and techniques relating to wireless communications. According to an aspect of the described systems and techniques, an apparatus includes circuitry configured to receive a signal representing a wireless communication transmission; and circuitry configured to process the signal to (i) decode a control portion of the wireless communication transmission, (ii) determine from the decoded control portion that a data portion of the wireless communication transmission was successfully decoded previously and acknowledged, and so the wireless communication transmission is an unnecessary retransmission, and (iii) trigger acknowledgement of the wireless communication transmission being successfully decoded, without completing a decode of the data portion of the wireless communication transmission, when the unnecessary retransmission is detected.