ACCESS POINT DEVICE FOR SAVING POWER OF WIRELESS DEVICE SUPPORTING WI-FI TETHERING SERVICE, AND METHOD THEREFOR

摘要

A method for saving power of a wireless device supporting a Wi-Fi tethering service comprises the steps of: broadcasting a beacon frame by an access point device; setting a timer according to a CFP counter value corresponding to the beacon frame; starting buffering and checking whether a terminal which has performed a power saving notification process exists; checking the number of frames according to the timer or the number of buffered frames on the basis of whether the terminal exists; switching a mode of the corresponding terminal from a sleeping mode to an active mode regardless of the timer, according to the checking result; and switching the mode of the corresponding terminal to the active mode, stopping the buffering and entering into a competition period.