HARQ-ACK METHOD AND APPARATUS FOR ALLOCATING HARQ-ACK CHANNEL RESOURCES SUPPORTING TRANSMIT DIVERSITY AND CHANNEL SELECTION

摘要

According to an embodiment of the present disclosure, a hybrid automatic repeat request acknowledgment (HARQ−) is performed by a user equipment (UE) in a wireless communication system based on the number of serving cells and a transmission mode of each serving cell. ACK) determining the number of bits, determining uplink resources associated with the determined number of HARQ-ACK bits, and using the determined number of all or some of the determined uplink resources through at least two antenna ports. Transmits HARQ-ACK bits, the number of the serving cells is at least two, and the transmission mode of each serving cell includes a transmission mode supporting up to two transport blocks, and the determined number of HARQ-ACK bits Representation of a response signal corresponding to a combination of different serving cells and transport blocks, respectively, wherein the determined uplink resources The includes an uplink resource is determined for each of the HARQ-ACK bits in the count.