A METHOD AND RETRANSFER CONTROLLING SYSTEM FOR A SINGLE DATA PACKET OR THE LAST DATA PACKET

摘要

A method for retransfer controlling a single data packet or the last data packet in the sequential data flow includes: when a HARQ transmitter has detected a positive acknowledgement ACK which is fed back from a HARQ receiver for the single data packet or the last data packet in the sequential data flow, the HARQ transmitter only transmits a control signal to the HARQ receiver and starts a timer, in order to wait for that the HARQ receiver re-feeds back a positive acknowledgement ACK or a negative acknowledgement NACK for the control signal; when the HARQ transmitter has detected the ACK which is fed back from the HARQ receiver for the control signal in the range of the timer, the HARQ transmitter generates a local ACK and sends it to a ARQ transmitter ; and when the HARQ transmitter has detected the NACK which is fed back from the HARQ receiver for the control signal in the range of the timer, the HARQ transmitter starts the HARQ-level retransfer.