Embodiments of the present application relate to a communication method and communication apparatus. In an example method, a user equipment (UE) may transmit K sets of sounding reference signals corresponding to K sub-channels of an uplink (UL) channel to a base station (BS). K can be a positive integer. The BS may transmit a downlink control information (DCI) corresponding to the K sets of sounding reference signals to the UE. The DCI can include a first information indicating a channel estimation of a first sub-channel among the K sub-channels.