A Packet Mode Auto-detection for Multi-mode Wireless Transmission System Signal Field Transmission for the Packet Mode Auto-detection and Gain Control based on the Packet Mode

摘要

The present invention relates to a technique for automatically detecting a packet mode with high reliability while being compatible with the prior art in a wireless communication system supporting multi-mode packets. The present invention provides a method for automatically detecting a packet mode by using a transmission rate and / or a packet length setting value included in a signal field of a transmission frame and a phase rotation state of a signal field. In addition, the present invention provides a method for transmitting after transmitting the modulation of the phase of the data tone and / or pilot tone by the appropriate angle to transmit the signal field to be used for automatic packet mode detection.