TRANSMISSION METHOD AND DEVICE FOR PHYSICAL LAYER PROTOCOL DATA UNIT

摘要

Provided is a transmission method for a physical layer protocol data unit (PPDU), wherein: some data sub-carriers of last orthogonal frequency division multiplexing (OFDM) symbol carrying useful information in the PPDU bear a data symbol sequence; and the remaining data sub-carriers of the last OFDM symbol carrying the useful information bear a feature signal sequence, wherein an initial position of the feature signal sequence is determined after the PPDU is parsed. Also provided is a corresponding transmission device for a PPDU. By applying the method and device of the embodiments of the present invention, a receiving end is rapidly enabled to determine an initial position of the feature signal sequence via a blind detection, which ensures that the receiving end rapidly completes data processing and state switching.