A feedback method performed by a terminal device, comprising: receiving , by the terminal device, Downlink Control Information, DCI, transmitted by a network device, the DCI carrying first indication information indicating a state of at least one group of secondary cells, Scells, or at least one Scell, and the DCI being DCI in a first format or DCI in a second format; and transmitting , by the terminal device, second indication information to the network device, the second indication information indicating that the terminal device acknowledges receipt of the first indication information, the method further comprises: receiving, by the terminal device, second configuration information transmitted by the network device, the second configuration information being used to determine a first active BWP configuration corresponding to the DCI in the first format and a first active BWP configuration corresponding to the DCI in the second format, wherein the DCI in the first format is DCI corresponding to a wake up signal, WUS, and the DCI in the second format is DCI not corresponding to a WUS, wherein the DCI indicates a switching to an active state with a non-dormancy behaviour for which an active BWP is configured via the first active BWP configuration, and the active BWP is for the terminal device entering the non-dormancy behaviour. receiving , by the terminal device, Downlink Control Information, DCI, transmitted by a network device, the DCI carrying first indication information indicating a state of at least one group of secondary cells, Scells, or at least one Scell, and the DCI being DCI in a first format or DCI in a second format; and transmitting , by the terminal device, second indication information to the network device, the second indication information indicating that the terminal device acknowledges receipt of the first indication information, the method further comprises: receiving, by the terminal device, second configuration information transmitted by the network device, the second configuration information being used to determine a first active BWP configuration corresponding to the DCI in the first format and a first active BWP configuration corresponding to the DCI in the second format, wherein the DCI in the first format is DCI corresponding to a wake up signal, WUS, and the DCI in the second format is DCI not corresponding to a WUS, wherein the DCI indicates a switching to an active state with a non-dormancy behaviour for which an active BWP is configured via the first active BWP configuration, and the active BWP is for the terminal device entering the non-dormancy behaviour. receiving, by the terminal device, second configuration information transmitted by the network device, the second configuration information being used to determine a first active BWP configuration corresponding to the DCI in the first format and a first active BWP configuration corresponding to the DCI in the second format, wherein the DCI in the first format is DCI corresponding to a wake up signal, WUS, and the DCI in the second format is DCI not corresponding to a WUS, wherein the DCI indicates a switching to an active state with a non-dormancy behaviour for which an active BWP is configured via the first active BWP configuration, and the active BWP is for the terminal device entering the non-dormancy behaviour. <EOS>