| abstract |
The present application discloses a data transmission method, device and system, which belong to the technical field of communication. The present application enriches the way of generating the modulation domain STF by enriching the way of generating the PPDU, thereby improving the flexibility of data transmission. The method includes: after the sending end generates the PPDU, sending the PPDU to at least one receiving end; wherein, the PPDU includes at least one modulation field STF, the modulation field STF includes a plurality of zero elements and a plurality of non-zero elements, the first non-zero element is There are m1 zero elements before the zero element, m2 zero elements after the last non-zero element, and m1+m2 zero elements between any two adjacent non-zero elements, m1 and m2 are both positive integers, the modulation Domain STF maps are transmitted on consecutive multiple subcarriers. This application is used for the transmission of data. |