METHOD AND USER EQUIPMENT FOR TRANSMITTING ACK/NACK INFORMATION, AND METHOD AND BASE STATION FOR RECEIVING ACK/NACK INFORMATION

摘要

A method and user equipment (UE) for transmitting ACK/NACK information, and a method and base station (BS) for receiving ACK/NACK information are disclosesd. If ACK/NACK repetition and spatial orthogonal-resource transmit diversity (SORTD) caused by 2 antenna ports are configured in the UE, the UE performs first ACK/NACK transmission using 2 PUCCH resources implicitly decided by an associated PDCCH. From the second transmission, the UE performs ACK/NACK transmission using 2 PUCCH resources explicitly assigned respectively for the two antenna ports.