| 摘要 |
Embodiments of the present invention provide a method for feeding an HARQ back, a user equipment, and a base station. The method comprises: receiving a physical downlink shared channel (PDSCH) on a subframe N of a secondary cell of a UE; determining, according to the subframe N of the secondary cell and an HARQ feedback time sequence, a subframe M used for performing HARQ feedback on the PDSCH; and sending the HARQ feedback on a default physical uplink shared channel (PUSCH) resource of the subframe M of the secondary cell, the default PUSCH resource being a PUSCH resource preconfigured by a base station, or the default PUSCH resource being a PUSCH resource configured on the subframe M of the secondary cell after it is determined that the UE receives the PDSCH of the subframe N of the secondary cell, and the base station being a base station corresponding to a primary cell or a base station corresponding to the secondary cell. In the embodiments of the present invention, by configuring a default PUSCH resource on a subframe of a secondary cell of a UE and performing HARQ feedback by using the default PUSCH resource, the HARQ feedback is smoothly performed. |
