A method for resource determination, comprising: receiving, by a terminal device, first signaling used for indicating the terminal device to transmit acknowledgement information for at least one downlink channel; if the first signaling is used for scheduling a first downlink channel, determining, by the terminal device, a time domain resource for transmitting the acknowledgement information corresponding to at least the first downlink channel according to a transmission location of the first downlink channel; and if the first signaling is not used for scheduling a downlink channel, determining, by the terminal device, a time domain resource for transmitting the acknowledgement information for at least one downlink channel transmitted before the first signaling, according to a transmission location of the downlink channel carrying the first signaling; characterized in that: when first indication information in the first signaling being a first value, the first indication information indicates the terminal device to transmit acknowledgement information for all hybrid automatic repeat request, HARQ, processes; and when the first signaling being used for scheduling a first downlink channel, first indication information in the first signaling being a second value, the first indication information indicates the terminal device to perform one of: a transmission of acknowledgement information for the first downlink channel scheduled by the first signaling; or a transmission of acknowledgement information for a first downlink channel group to which the first downlink channel scheduled by the first signaling belongs. receiving, by a terminal device, first signaling used for indicating the terminal device to transmit acknowledgement information for at least one downlink channel; if the first signaling is used for scheduling a first downlink channel, determining, by the terminal device, a time domain resource for transmitting the acknowledgement information corresponding to at least the first downlink channel according to a transmission location of the first downlink channel; and if the first signaling is not used for scheduling a downlink channel, determining, by the terminal device, a time domain resource for transmitting the acknowledgement information for at least one downlink channel transmitted before the first signaling, according to a transmission location of the downlink channel carrying the first signaling; characterized in that: when first indication information in the first signaling being a first value, the first indication information indicates the terminal device to transmit acknowledgement information for all hybrid automatic repeat request, HARQ, processes; and when the first signaling being used for scheduling a first downlink channel, first indication information in the first signaling being a second value, the first indication information indicates the terminal device to perform one of: a transmission of acknowledgement information for the first downlink channel scheduled by the first signaling; or a transmission of acknowledgement information for a first downlink channel group to which the first downlink channel scheduled by the first signaling belongs. when first indication information in the first signaling being a first value, the first indication information indicates the terminal device to transmit acknowledgement information for all hybrid automatic repeat request, HARQ, processes; and when the first signaling being used for scheduling a first downlink channel, first indication information in the first signaling being a second value, the first indication information indicates the terminal device to perform one of: a transmission of acknowledgement information for the first downlink channel scheduled by the first signaling; or a transmission of acknowledgement information for a first downlink channel group to which the first downlink channel scheduled by the first signaling belongs. a transmission of acknowledgement information for the first downlink channel scheduled by the first signaling; or a transmission of acknowledgement information for a first downlink channel group to which the first downlink channel scheduled by the first signaling belongs.