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US 12,513,034 B2Granted
Data transmission method, data modulation method, and electronic device and storage medium
AssigneeZte Corporation
InventorsYu Xin, Guanghui Yu, Tong Bao, Jin Xu, Liujun Hu
Life of this patent
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Abstract
A data transmission method includes transmitting to-be-transmitted data in N frequency domain resource blocks, where each of the N frequency domain resource blocks includes K(n) subcarriers, where n=1, 2, . . . , N, N is greater than or equal to 1, and K(n) is greater than or equal to 1; performing inverse Fourier transform and an upsampling operation on the to-be-transmitted data in each of the N frequency domain resource blocks to form N groups of data sequences; and transmitting the N groups of data sequences.
Claims16
A data transmission method, comprising:
- transmitting to-be-transmitted data in N frequency domain resource blocks, wherein an n-th frequency domain resource block of the N frequency domain resource blocks comprises K(n) subcarriers, wherein n=1, 2, . . . , N, N is greater than or equal to 1, and the K(n) is greater than or equal to 1;
- performing an inverse Fourier transform and an upsampling operation on to-be-transmitted data in each of the N frequency domain resource blocks to form N groups of data sequences;
- and
- transmitting the N groups of data sequences;
- after performing the inverse Fourier transform and the upsampling operation on the to-be-transmitted data in each of the N frequency domain resource blocks, the method further comprises:
- performing filtering on the N groups of data sequences, wherein the filtering comprises time domain convolution filtering;
- and
- after performing the filtering on the N groups of data sequences, the method further comprises:
- performing a dot multiply operation on the N groups of data sequences, wherein a to-be-multiplied sequence which is multiplied by the N groups of data sequences in the dot multiply operation comprises a sequence of data of which modulo are equal and phases sequentially change by a same value θ(n), wherein different blocks of the N frequency domain resource blocks correspond to different values of θ(n).
6 more elements
A data modulation method, comprising:
- dividing to-be-transmitted data into N groups of data sets, wherein an n-th group 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;
- performing an inverse Fourier transform and an upsampling operation on each of the N groups of data sets to form N groups of data sequences;
- and
- transmitting the N groups of data sequences;
- after performing the inverse Fourier transform and the upsampling operation on each of the N groups of data sets, the method further comprises:
- performing filtering on the N groups of data sequences, wherein the filtering comprises time domain convolution filtering;
- and
- after performing the filtering on the N groups of data sequences, the method further comprises:
- performing a dot multiply operation on the N groups of data sequences, wherein a to-be-multiplied sequence which is multiplied by the N groups of data sequences in the dot multiply operation comprises a sequence of data of which modulo are equal and phases sequentially change by a same value θ(n), wherein different data sets of the N groups of data sets correspond to different values of θ(n).
6 more elements
A data transmission method, comprising:
- transmitting to-be-transmitted data in N frequency domain resource blocks, wherein an n-th 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 the K(n) is greater than or equal to 1;
- performing an inverse Fourier transform on to-be-transmitted data in each of the N frequency domain resource blocks to form N groups of data sequences;
- and
- transmitting the N groups of data sequences;
- wherein a number K(n) of subcarriers on at least one of the N frequency domain resource blocks does not satisfy 2 to a power of i, and oversampling inverse Fourier transform is used so that a number of inverse Fourier transform points is 2 to the power of i, and the N frequency domain resource blocks use a same number of inverse Fourier transform points, 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.
2 more elements
Dependencies are inferred from the claim text.