Method and apparatus of transmit power control in wireless local area network

摘要

A method and apparatus of controlling a transmit power in a wireless local area network is provided. A wireless device operated in a TV White Space transmits a white space map indicating a list of available channels, and transmits an extended power constraint indicating a plurality of transmission channels and a plurality of maximum transmit powers, wherein the plurality of transmission channels are selected among the list of available channels and each of the plurality of maximum transmit powers corresponds to a maximum transmit power for each of the plurality of transmission channels. Interference can be mitigated between wireless devices operated in the TV White Space.

主权项

1. A method for controlling a transmit power of a first wireless device in a wireless local area network, the method comprising:
transmitting a first frame comprising a transmit power information element comprising one or more maximum transmit power fields to a second wireless device; and receiving a second frame from the second wireless device; wherein the transmit power information element comprises maximum transmit power information for one or more channel bandwidths, wherein each of the one or more maximum transmit power fields defines a maximum transmit power for each of the one or more channel bandwidths, and wherein the transmit power information element comprises maximum transmit power information for all channel bandwidths supported by the first wireless device and the second wireless device.