1. A method for acknowledgement/negative acknowledgement (ACK/NACK) transmission, comprising:
transmitting, by a terminal device which is configured with physical uplink control channel (PUCCH) format 3 for ACK/NACK
transmission, ACK/NACK feedback information corresponding to a semi-persistent scheduling (SPS) physical downlink shared channel
(PDSCH) and ACK/NACK feedback information corresponding to a physical downlink control channel (PDCCH) in which a downlink
(DL) downlink assignment index (DAI) value is equal to 1 on PUCCH format 1a/1b resource using PUCCH format 1b with channel
selection or ACK/NACK bundling when only the SPS PDSCH and the PDCCH in which the DL DAI value is equal to 1 are received
in a feedback window.