Patent ID: 7349709

Claim:
A WLAN (Wireless Local Area Network) transmitter device capable of transmitting data in two or more different transmission modes at different transmission rates, comprising: a transmission gain controller for determining a transmission gain to be applied when transmitting data; and a data transmission section for transmitting data at a transmission gain determined by said transmission gain controller, wherein said transmission gain determined by said transmission gain controller is transmission mode dependent, with the transmission gain applied in a first one of said two or more different transmission modes being greater that the transmission gain applied in a second one of said two or more different transmission modes if the transmission rate in said first one of said two or more different transmission modes is smaller than the transmission rate in said second one of said two or more different transmission modes; and wherein said transmission gain controller is adapted to determine the transmission gain of said second one of said two or more different transmission modes by reading a mode dependent or a rate dependent gain multiplication factor from a gain table storing mode dependent or rate dependent transmission gain multiplication factors; and wherein the mode dependent or the rate dependent gain multiplication factor read from said gain table is to be applied to a multiplier by said data transmission section.