HARQ METHOD AND DEVICE FOR PERFORMING HARQ FOR MULTI CELLS

摘要

A method for performing hybrid automatic repeat request (HARQ) of a Frequency Division Duplex (FDD) cell in a wireless communication system and a wireless device using the same are provided. The wireless device receives an uplink-downlink (UL-DL) setup for an uplink (UL) carrier of the FDD cell and performs HARQ on the DL carrier of the FDD cell according to the HARQ Based on timing.