Methods, systems, and apparatus for codebook transmission are provided. In one aspect, a method includes receiving at least one downlink transmission and indication information corresponding to the at least one downlink transmission and generating a codebook including at least one piece of feedback information corresponding to the at least one downlink transmission. The at least one downlink transmission includes a target downlink transmission corresponding to an actual occasion and a pair of a target frequency domain resource and a reference occasion. A location of feedback information corresponding to the target downlink transmission in the codebook corresponds to indication information corresponding to the target downlink transmission. The actual occasion includes a physical downlink control channel (PDCCH) monitoring occasion at which downlink control information (DCI) for scheduling or carrying the target downlink transmission is located or a physical downlink shared channel (PDSCH) reception occasion at which the target downlink transmission is located.