Patent ID: 8243749

Claim:
A wireless communication device comprising: a beamformee unit to convey feedback information by a data unit in one of a set of feedback positions included in a transmit beamforming capability field of said data unit according to response timing capabilities of said beamformee unit, wherein the transmit beamforming capability field includes a beamformee feedback capability value, which is selected by said beamformee unit from at least first and second predefined values, the first predefined value indicating an immediate feedback position for sending feedback response information immediately after a reception of a sounding data unit and the second predefined value indicating a delayed feedback position for sending delayed feedback response information, and the response timing capabilities include at least one of an explicit Beam Form (BF) channel state information (CSI) feedback, an explicit non compressed steering matrix feedback, an explicit compressed steering matrix feedback and a minimal grouping used for an explicit feedback report.