receiving, by a terminal, first configuration information sent by a network device, wherein the first configuration information is used to configure a pattern of an SRS resource, the SRS resource is distributed at equal intervals in frequency domain, an interval is M subcarriers, and M is an integer greater than 4;

wherein the first configuration information is further used to configure a cyclic shift value of the SRS resource;

wherein a comb structure corresponding to M subcarriers distributed at equal intervals in frequency domain is comb-M, and M is 6, 8, or 12;

in a case that the first configuration information satisfies a first preset condition, the terminal performs a preset operation; and

in a case that the first configuration information does not satisfy the first preset condition, the terminal sends the SRS resource;

wherein the first preset condition comprises any one of the following:

M=6, the bandwidth information of the SRS resource is 8 Resource Blocks (RBs), 16 RBs, or 32 RBs; and

M=12, the bandwidth information of the SRS resource is 4 RBs, 8 RBs, 16 RBs, 20 RBs, 28 RBs, or 32 RBs;

wherein the preset operation comprises:

skipping sending the SRS resource; or

truncating a generated sequence of the SRS resource and sending a truncated sequence.