Patent ID: 7613475
Filing Date: 2009-11-03
Classification: H04W

Abstract:
1. A wireless local area network (LAN) system based on transmit power control, comprising: an access point (AP) for broadcasting a beacon frame to an area that is outside a service coverage of a first transmit power by using a second transmit power which is higher than the first transmit power and which is already set when a set period is reached, and for increasing the first transmit power when there is an increase request to increase the first transmit power based on the beacon frame broadcast with the second transmit power; and a station for requesting an increase in the first transmit power on the basis of the beacon frame broadcast with the second transmit power to make an association with the AP when the station receives the beacon frame broadcast from the AP with the second transmit power when the station is outside the service coverage of the first transmit power.