APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING ACK/NACK INFORMATION IN WIRELESS COMMUNICATION SYSTEM

摘要

The present invention relates to a method for transmitting and receiving ACK/NACK (A/N) in a wireless communication system. Provided is a method for transmitting A/N information for two downlink (DL) sub-frames through a Physical Uplink Control Channel (PUCCH) format 1a, 1b, or 3 when a Physical Downlink Control Channel (PDCCH) transmission sub-frame in which a PDCCH having a Downlink Assignment Index (DAI) of 1 is transmitted and a Semi Persistent Scheduling (SPS) transmission sub-frame (or an SPS Physical Downlink Shared Channel (PDSCH)) in which a PDSCH for SPS is transmitted are received within a single bundling window in a communication system of a Time Division Duplex (TDD) and single carrier environment. Accordingly, even in a specific case of deviating from conditions applied to said PUCCH format 3, by selectively using the PUCCH format 1a, 1b or 3 when A/N information for two sub-frames is transmitted and received, a user equipment (UE) may significantly increase a DL throughput and uplink PUCCH transmission performance without a noticeable deterioration in performance in comparison to an existing method.