PILOT PROCESSING METHOD AND DEVICE FOR WIRELESS LOCAL AREA NETWORK, AND COMMUNICATION SYSTEM

摘要

Provided are a pilot processing method and device for a wireless local area network, and a communication system. A sending end device of the present invention comprises: a pilot number determination module used for determining the total number of pilot subcarriers in a wireless local area network (WLAN) in a frequency domain; a frequency domain deployment module used for determining the serial number of subcarriers bearing pilot frequencies in the WLAN according to the total number of the pilot subcarriers in the frequency domain; a time domain deployment module used for uniformly bearing the pilot frequencies in a symbol of the WLAN in a time domain; and a signal sending module used for sending a signal to the receiving end device according to the serial number of the subcarriers bearing the pilot frequencies and the symbol, so that the receiving end device acquires phase tracking information according to the pilot frequencies in the signal, and thereby conducting phase compensation and demodulation on the data in the signal. The present invention eliminates the influence of residual frequency offset and phase noise generated by a system, thereby effectively reducing the packet error rate.