A terminal device, comprising a baseband processing module and a radio frequency processing module, wherein the radio frequency processing module controls a plurality of radio frequency channels; characterized in that the baseband processing module is configured to determine, for each of one or more carriers of the terminal device, low power consumption state information of the carrier based on precoding information and duration information of the carrier, wherein the duration information comprises a scheduling slot offset, a scheduling slot number, a start symbol, scheduling duration, data sending start time and/or data sending duration, and wherein the low power consumption state information comprises a target radio frequency channel and a start time and an end time for scheduling the target radio frequency channel; the target radio frequency channel is a radio frequency channel corresponding to an all-zero data sequence in a plurality of data sequences that are mapped to the plurality of radio frequency channels after precoding processing is performed on to-be-sent data of the terminal device based on the precoding information; and the start time and the end time are determined based on the scheduling duration information; the baseband processing module is further configured to send control information to the radio frequency processing module based on the low power consumption state information of each carrier; and the radio frequency processing module is configured to control, based on the control information, one or more of the plurality of radio frequency channels to be in a low power consumption state, wherein the low power consumption state comprises a disabled state or a dormant state. the baseband processing module is configured to determine, for each of one or more carriers of the terminal device, low power consumption state information of the carrier based on precoding information and duration information of the carrier, wherein the duration information comprises a scheduling slot offset, a scheduling slot number, a start symbol, scheduling duration, data sending start time and/or data sending duration, and wherein the low power consumption state information comprises a target radio frequency channel and a start time and an end time for scheduling the target radio frequency channel; the target radio frequency channel is a radio frequency channel corresponding to an all-zero data sequence in a plurality of data sequences that are mapped to the plurality of radio frequency channels after precoding processing is performed on to-be-sent data of the terminal device based on the precoding information; and the start time and the end time are determined based on the scheduling duration information; the baseband processing module is further configured to send control information to the radio frequency processing module based on the low power consumption state information of each carrier; and the radio frequency processing module is configured to control, based on the control information, one or more of the plurality of radio frequency channels to be in a low power consumption state, wherein the low power consumption state comprises a disabled state or a dormant state.