Patent ID: 8170601

Claim:
A method for correcting transmission parameters comprising: a base station wirelessly communicating with a client station; the base station transmitting to the client station a sounding command to instruct the client station to transmit a sounding signal; the base station receiving in an uplink the sounding signal from the client station; the base station determining channel characteristics based at least partly on the sounding signal; the base station determining one or more signal transmission correction parameters for at least one of timing adjustment, power adjustment, or frequency adjustment based at least partly on the determined channel characteristics; the base station transmitting in a downlink to the client station a message including the one or more correction parameters; the base station transmitting a second sounding command to the client station in order to perform a beamforming adjustment; the base station receiving in an uplink a second sounding signal from the client station; and the base station performing a beamforming adjustment for an antenna of the base station based at least partly on the second sounding signal.