METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION OF UPLINK CONTROL INFORMATION IN WIRELESS COMMUNICATIONS SYSTEM PROVIDING WIDE BANDWIDTH SERVICE THROUGH CARRIER AGGREGATION

摘要

According to the present invention, provided is a method in which a terminal transmits hybrid automatic repeat request (HARQ) acknowledgement (ACK)/negative ACK (NACK) information about downlink data received from a base station in a long term evolution-advanced (LTE-A) system supporting carrier aggregation. When physical uplink shared channel (PUSCH) transmission has not been scheduled at a time to transmit the HARQ ACK/NACK information, the terminal transmits the HARQ ACK/NACK information via a physical uplink control channel (PUCCH). When the PUSCH transmission has been scheduled by the base station, the terminal multiplexes HARQ ACK/NACK information into the PUSCH and transmits the multiplexed HARQ ACK/NACK information to the base station. The amount of the HARQ ACK/NACK information increases in proportion to the number of aggregated carriers. The present invention defines scheduling operation of the base station and HARQ ACK/NACK mapping operation of the terminal to maintain performance of reception of HARQ ACK/NACK and the PUSCH when the HARQ ACK/NACK information is multiplexed into the PUSCH.;COPYRIGHT KIPO 2016