Method and apparatus for controlling transmission power in WLAN system

摘要

A transmit power control method of a first station in a wireless LAN (WLAN) system includes: receiving path loss information from an (access point) AP, the path loss information containing a maximum value among path losses between the AP and at least one or more stations included in the WLAN system; controlling a transmit power by using the path loss information; and transmitting a frame according to the controlled transmit power. In said controlling the transmit power by using the path loss information, the transmit power is controlled by using a path loss obtained by adding the maximum value and a path loss between the first station and the AP or by using the path loss between the first station and the AP.

主权项

1. A method for controlling a transmit power in a wireless local area network, the method comprising:
establishing, by a first station, a basic service set with an access point (AP) that is associated with a second station; receiving, by the first station, from the AP, a first power parameter indicating a path loss between the AP and the second station; determining, by the first station, a second power parameter indicating a path loss between the first station and the second station by detecting a first Request To Send (RTS) frame that is transmitted from the second station to the AP; and transmitting, by the first station, to the AP, a second RTS frame with a maximum allowed transmit power that is determined based on the first power parameter and the second power parameter.