Method for Enhanced Power Saving on DCF based Wireless Networks

The invention consumption of the terminal to communicate with each other by using a beacon period, separated by ATIM window interval and a Doze state period according to the IEEE 802.11 defined as relating to power consumption improvements in the DCF-based wireless network and, in particular in a DCF-based wireless network, It relates to a method for reducing power. The present invention, (Earlier Time Slot) of the ATIM Window period distinguish ETS phase coded section and LTS (Later Time Slot) interval; In either case, the terminal that is the other is not the case with the data packet to be transmitted to the terminal is to transmit in the ETS period a beacon signal (beacon) with the terminals, with the data packet, transmitting a beacon signal from the LTS section by the respective nodes; And when receiving the terminal receiving the beacon signal is a beacon signal from the LTS section is characterized by including the step of switching to a Doze state immediately, without waiting for the Doze state interval. According to the invention, the terminal receiving the beacon signal at the DCF-based wireless network has the effect of being able to save power consumed by the terminal because enter Doze state immediately if there is no data packet to be transmitted and received with the other party terminal.