A method controlling wireless communication of a data block from a terminal device to a base station includes: making a first uplink data transmission for the data block in association with a first retransmission protocol process and obtaining a corresponding first acknowledgement indication indicating whether the data block has been successfully communicated to the base station; making a second uplink data transmission for the data block in association with a second retransmission protocol process and obtaining a corresponding second acknowledgement indication, the second transmission initiated before the first acknowledgement indication is obtained; determining whether to avoid scheduling a data retransmission in association with the first retransmission protocol process based on the first and second response signallings, avoiding retransmission of data in association with the first retransmission protocol process if either one of the first or second acknowledgement indication indicates the data block has been successfully communicated to the base station.