Data transmission method, data modulation method, electronic device, and storage medium

A data modulation method, comprising:

• dividing to-be-transmitted data into N groups of data sets, wherein each group of data sets of the N groups of data sets comprises K(n) pieces of to-be-transmitted data, wherein n=1, 2, . . . , N, a value of N is greater than or equal to 1, and a value of K(n) is greater than or equal to 1;
• separately performing inverse Fourier transform and multiplication operation processing on the N groups of data sets to form N groups of data sequences;
• and
• transmitting the N groups of data sequences;
• wherein a to-be-multiplied sequence used in the multiplication operation processing comprises:
• a sequence of values of which moduli are equal and phases sequentially change by a same θ(n), wherein different groups of data sets correspond to different values of θ(n).

A data transmission method, comprising:

• transmitting to-be-transmitted data in N frequency domain resource blocks, wherein each frequency domain resource block of the N frequency domain resource blocks comprises K(n) subcarriers, wherein n=1, 2, . . . , N, a value of N is greater than or equal to 1, and a value of K(n) is greater than or equal to 1;
• performing inverse Fourier transform on to-be-transmitted data on the each frequency domain resource block of the N frequency domain resource blocks to form N groups of data sequences;
• and
• transmitting the N groups of data sequences;
• wherein the number K(n) of subcarriers on at least one frequency domain resource block of the N frequency domain resource blocks does not satisfy 2 to the power of i, oversampling inverse Fourier transform is used so that a number of inverse Fourier transform points is 2 to the power of i, and numbers of inverse Fourier transform points used by the N frequency domain resource blocks are the same, wherein i is an integer, and the number of inverse Fourier transform points is less than or equal to a sum of numbers of subcarriers comprised in the N frequency domain resource blocks.