Hybrid automatic repeat request method and base station device

A hybrid automatic repeat request method and a base station device are provided. The method includes: the base station assigns the downlink resource for a terminal and transmits the first sub-packet of the data packet to the terminal in the hybrid automatic repeat request (HARQ) manner by using the downlink resource; if the base station does not receive any feedback information sent by the terminal about whether the data packet is successfully received or not in a set time slot, then the base station assigns the new downlink resource for the terminal and retransmits the first sub-packet of the data packet to the terminal by using the newly assigned downlink resource.