A data transmission method, comprising: sending, by a sending end, data to a receiving end on one or more orthogonal frequency division multiplexing, OFDM, symbols in a scheduling unit, wherein a time length of the scheduling unit is a length of two long term evolution, LTE, OFDM symbols having normal cyclic prefixes and a subcarrier spacing of 15 kHz, the scheduling unit is formed by seven OFDM symbols having a subcarrier spacing of 60 kHz, the OFDM symbols having the subcarrier spacing of 60 kHz comprise cyclic prefixes and valid data, characterized in that, in condition that the scheduling unit is formed by the seven OFDM symbols having the subcarrier spacing of 60 kHz, the length of the two LTE OFDM symbols having the normal cyclic prefixes and the subcarrier spacing of 15 kHz is 2×2192×Ts, and configuration of cyclic prefix lengths of the seven OFDM symbols having the subcarrier spacing of 60 kHz comprises one of: 512×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; 480×Ts1, 480×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; and 464×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; wherein in condition that the scheduling unit is formed by the seven OFDM symbols having the subcarrier spacing of 60 kHz, the length of the two LTE OFDM symbols having the normal cyclic prefixes and the subcarrier spacing of 15 kHz is (2192+2208)×Ts, and configuration of cyclic prefix lengths of the seven OFDM symbols having the subcarrier spacing of 60 kHz comprise one of: 576×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; 512×Ts1, 512×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; 480×Ts1, 480×Ts1, 480×Ts1, 480×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; and 480×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, and 464×Ts1; wherein a length of the Ts is 1/30720 ms, and a length of the Ts1 is 1/122880 ms. sending, by a sending end, data to a receiving end on one or more orthogonal frequency division multiplexing, OFDM, symbols in a scheduling unit, wherein a time length of the scheduling unit is a length of two long term evolution, LTE, OFDM symbols having normal cyclic prefixes and a subcarrier spacing of 15 kHz, the scheduling unit is formed by seven OFDM symbols having a subcarrier spacing of 60 kHz, the OFDM symbols having the subcarrier spacing of 60 kHz comprise cyclic prefixes and valid data, characterized in that, in condition that the scheduling unit is formed by the seven OFDM symbols having the subcarrier spacing of 60 kHz, the length of the two LTE OFDM symbols having the normal cyclic prefixes and the subcarrier spacing of 15 kHz is 2×2192×Ts, and configuration of cyclic prefix lengths of the seven OFDM symbols having the subcarrier spacing of 60 kHz comprises one of: 512×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; 480×Ts1, 480×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; and 464×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; wherein in condition that the scheduling unit is formed by the seven OFDM symbols having the subcarrier spacing of 60 kHz, the length of the two LTE OFDM symbols having the normal cyclic prefixes and the subcarrier spacing of 15 kHz is (2192+2208)×Ts, and configuration of cyclic prefix lengths of the seven OFDM symbols having the subcarrier spacing of 60 kHz comprise one of: 576×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; 512×Ts1, 512×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; 480×Ts1, 480×Ts1, 480×Ts1, 480×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; and 480×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, and 464×Ts1; wherein a length of the Ts is 1/30720 ms, and a length of the Ts1 is 1/122880 ms. 512×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; 480×Ts1, 480×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; and 464×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; wherein in condition that the scheduling unit is formed by the seven OFDM symbols having the subcarrier spacing of 60 kHz, the length of the two LTE OFDM symbols having the normal cyclic prefixes and the subcarrier spacing of 15 kHz is (2192+2208)×Ts, and configuration of cyclic prefix lengths of the seven OFDM symbols having the subcarrier spacing of 60 kHz comprise one of: 576×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; 512×Ts1, 512×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; 480×Ts1, 480×Ts1, 480×Ts1, 480×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; and 480×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, and 464×Ts1; wherein a length of the Ts is 1/30720 ms, and a length of the Ts1 is 1/122880 ms. 576×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; 512×Ts1, 512×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; 480×Ts1, 480×Ts1, 480×Ts1, 480×Ts1, 448×Ts1, 448×Ts1, and 448×Ts1; and 480×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, 464×Ts1, and 464×Ts1; wherein a length of the Ts is 1/30720 ms, and a length of the Ts1 is 1/122880 ms.