A physical-layer resource mapping method, implemented by user equipment, UE, the method comprising: in response to hybrid automatic repeat request acknowledgement, HARQ-ACK, information and uplink data being multiplexed in transmission, determining a frequency-domain offset and a starting position for each of physical-layer resources that a HARQ-ACK modulation symbol is mapped to, wherein the frequency-domain offset is for one of a plurality of resource elements, REs, that different HARQ-ACK modulation symbols are mapped to; and mapping each HARQ-ACK modulation symbol to a corresponding RE according to the starting position and the frequency-domain offset, wherein the number of REs occupied by the HARQ-ACK modulation symbols is K, and the number of REs in each OFDM symbol is M, characterized in that, the determining a frequency-domain offset for each of physical-layer resources that a HARQ-ACK modulation symbol is mapped to comprises: in a case that K is not greater than M, determining a first frequency-domain offset corresponding to first R HARQ-ACK modulation symbols by ceil(M/K), and determining a second frequency-domain offset corresponding to remaining HARQ-ACK modulation symbols other than the first R HARQ-ACK modulation symbols by floor(M/K), wherein R is calculated based on mod (M, K); or in a case that K is greater than M, determining, by ceil(K/M), a first count corresponding to REs that the HARQ-ACK modulation symbols are mapped to at each frequency-domain position during first S offsetting of the HARQ-ACK modulation symbols, and determining, by floor(K/M), a second count corresponding to REs that the HARQ-ACK modulation symbols are mapped to at each frequency-domain position during offsetting of remaining HARQ-ACK modulation symbols other than the first S offsetting, wherein S is calculated based on mod (K, M), a frequency-domain offset corresponding to the first S offsetting is a first preset value, and a frequency-domain offset corresponding to frequency-domain offsetting other than the first S offsetting is a second set value. in response to hybrid automatic repeat request acknowledgement, HARQ-ACK, information and uplink data being multiplexed in transmission, determining a frequency-domain offset and a starting position for each of physical-layer resources that a HARQ-ACK modulation symbol is mapped to, wherein the frequency-domain offset is for one of a plurality of resource elements, REs, that different HARQ-ACK modulation symbols are mapped to; and mapping each HARQ-ACK modulation symbol to a corresponding RE according to the starting position and the frequency-domain offset, wherein the number of REs occupied by the HARQ-ACK modulation symbols is K, and the number of REs in each OFDM symbol is M, characterized in that, the determining a frequency-domain offset for each of physical-layer resources that a HARQ-ACK modulation symbol is mapped to comprises: in a case that K is not greater than M, determining a first frequency-domain offset corresponding to first R HARQ-ACK modulation symbols by ceil(M/K), and determining a second frequency-domain offset corresponding to remaining HARQ-ACK modulation symbols other than the first R HARQ-ACK modulation symbols by floor(M/K), wherein R is calculated based on mod (M, K); or in a case that K is greater than M, determining, by ceil(K/M), a first count corresponding to REs that the HARQ-ACK modulation symbols are mapped to at each frequency-domain position during first S offsetting of the HARQ-ACK modulation symbols, and determining, by floor(K/M), a second count corresponding to REs that the HARQ-ACK modulation symbols are mapped to at each frequency-domain position during offsetting of remaining HARQ-ACK modulation symbols other than the first S offsetting, wherein S is calculated based on mod (K, M), a frequency-domain offset corresponding to the first S offsetting is a first preset value, and a frequency-domain offset corresponding to frequency-domain offsetting other than the first S offsetting is a second set value. in a case that K is not greater than M, determining a first frequency-domain offset corresponding to first R HARQ-ACK modulation symbols by ceil(M/K), and determining a second frequency-domain offset corresponding to remaining HARQ-ACK modulation symbols other than the first R HARQ-ACK modulation symbols by floor(M/K), wherein R is calculated based on mod (M, K); or in a case that K is greater than M, determining, by ceil(K/M), a first count corresponding to REs that the HARQ-ACK modulation symbols are mapped to at each frequency-domain position during first S offsetting of the HARQ-ACK modulation symbols, and determining, by floor(K/M), a second count corresponding to REs that the HARQ-ACK modulation symbols are mapped to at each frequency-domain position during offsetting of remaining HARQ-ACK modulation symbols other than the first S offsetting, wherein S is calculated based on mod (K, M), a frequency-domain offset corresponding to the first S offsetting is a first preset value, and a frequency-domain offset corresponding to frequency-domain offsetting other than the first S offsetting is a second set value.