Embodiments of the present invention disclose a communication method and related communication apparatus. An embodiment communication method includes that a terminal receives DCI from a base station. The DCI includes a carrier assignment indication field indicating a total number of scheduled carriers in configured carriers and an accumulative number M of scheduled carriers up to a current scheduled carrier. The M is an integer greater than or equal to 1. The terminal sends HARQ information to the base station according to the carrier assignment indication field in the DCI.