EP3667981

A method for determining feedback information, a terminal device, and a network device are disclosed. The method includes: obtaining, by a receive end device, time unit aggregation information and DAI indication information that are sent by a transmit end device; determining feedback information for at least one transport block based on the time unit aggregation information and the DAI indication information; and finally sending the feedback information for the at least one transport block to the transmit end device. This can improve a manner of determining HARQ feedback information in an NR system, so as to support a scenario with a flexible quantity of aggregated/scheduled time units, thereby avoiding understanding inconsistency and disorder of the HARQ feedback information between a terminal device and a base station on a premise of ensuring downlink control overheads and uplink feedback overheads.