Patent ID: 8040856
Filing Date: 2011-10-18
Classification: G06F,H04B,H04N

Abstract:
1. A method of obtaining a transmit beamforming vector for transmission of high definition video data over a wireless medium, the method comprising: i) modulating at a first station, a first training signal with a first transmit beamforming vector; ii) transmitting, at the first station, the first modulated training signal to a second station; iii) receiving, at a second station, the first modulated training signal from the first station; iv) obtaining, at the second station, a receive beamforming vector, based on the first modulated training signal; v) modulating, at the second station, a second training signal with the receive beamforming vector of the second station; vi) transmitting, at the second station, the modulated second training signal; vii) receiving, at the first station, the modulated second training signal; viii) obtaining, at the first station, a second transmit beamforming vector based on the modulated second training signal; ix) replacing the first transmit beamforming vector with the second transmit beamforming vector; and x) determining whether to use the second transmit beamforming vector to modulate a high definition video data signal to be transmitted to the second station, wherein the determining comprises receiving a determining signal from the first station, and wherein the determining signal comprises an indication of whether or not to use the second transmit beamforming vector for transmitting a high definition video data signal to the second station, wherein steps i)-x) are repeated if it is determined not to use the second transmit beamforming vector for transmitting a high definition video data signal to the second station.