| 摘要 |
The present invention relates to a wireless communication system. More particularly, the present invention provides a method for carrying out a hybrid automatic repeat request (HARQ) in a wireless communication system supporting carrier aggregation, and to an apparatus for same, comprising the steps of: setting a first cell having a first time division duplex (TDD) uplink-downlink (UL-DL) configuration and a second cell having a second TDD UL-DL configuration; receiving data through a DL subframe of the first cell; and saving at least a portion of the data to a HARQ soft buffer when decoding of the data is unsuccessful, wherein the size of the HARQ soft buffer is determined on the basis of the number of HEAR processes of the first cell, and the number of HARQ processes of the first cell is determined on the basis of the number of subframes of which the first cell is the DL within a specific HARQ round trip time (RTT), wherein at least one subframe of which the first cell is the DL and the second cell is the UL is excluded when determining the number of the HARQ processes of the first cell. |
