Method for implementing automatic retransmission answering indication signal channel of time division synchronization code division multiple access system

This invention discloses a method for realizing automatic re-transmission of response instruction channels of TD-SCDMA system including the following steps: the system generates a first time of spread-spectrum code sequence, selects its code corresponding to data confirmed by the link layer, caries out first time of spectrum-spread and distributes TPS and SS pair for user devices to modulate and overlap the data got from the first spectrum-spread and carries out second time of spread-spetrum and harass to the overlapped data to be arranged according to the set HICH time slot structure and plug the TPS and SS at corresponding positions.