Automatic repeat request (arq) protocol employing a first information element indicating whether to perform retransmission of an uplink data packet and a second information element indicates a transport format for the retransmission

A transmission apparatus for controlling a transport format for retransmission of data packets transmitted uplink to a receiving apparatus via at least one data channel using an automatic repeat request (ARQ) protocol, the transmission apparatus comprising:

• a transmitter configured to transmit an uplink data packet via the data channel to the receiving apparatus,
• a receiver configured to receive a first information element along with a second information element from the receiving apparatus,
• wherein the first information element indicates whether to perform a retransmission of the uplink data packet at the transmission apparatus, and the second information element indicates a transport format for the retransmission, and
• wherein the transmitter is configured to transmit the retransmission from the transmission apparatus to the receiving apparatus according to the transport format indicated in the second information element using a transmission timing based on the ARQ protocol.