Upstream retransmission method and apparatus

Embodiment of the present invention discloses a method of retransmitting the uplink data stream and an apparatus, the method comprising: receiving a UE fed back by the base station to the UE before the primary data comprises streaming data when the streaming situation correct HARQ acknowledgment character; when the UE according to HARQ acknowledgment character determines that the data stream retransmission, the next HARQ round trip time for a data stream retransmitted, acquiring transmission condition when retransmission; UE according to the transmission condition data stream to a base station an uplink where the UE via the secondary E-DPCCH carries the control channel corresponding to the channel carrying data indicating whether the data stream crossing occurs. In the present invention UE carrying upstream retransmission may select a data channel suitable transmission mode and carries the retransmitted data stream according to the transmission conditions when the retransmission, so that the base station may know carry retransmission data streams by this makes possible adaptive UE current transmission conditions of the system, thereby improving the performance of the system retransmission.