Patent ID: 8374142

Claim:
An apparatus comprising: a transmitter to transmit packets over a beamformed wireless communication channel; and a link adaptation module, wherein the link adaptation module initiates reforming the beamformed wireless communication channel to reestablish wireless communication wherein the link adaptation module initiates reforming the beamformed wireless communication channel if the transmitter does not receive an acknowledgement (ACK) or block ACK packet from a receiving station in a predefined period of time (T), wherein the predefined period of time (T) is defined as: T =((max_PPDU_size/MCS_ AB )+ SIFS +ACK) wherein max_PPDU_size is the maximum size of a PLCP (Physical Layer Convergence Procedure) protocol data unit (PHY PPDU), MCS_AB is the MCS used in the last successful fame exchange between the transmitting station and the receiving station, SIFS is short interframe space and ACK is the time taken to transmit an acknowledgement (ACK) frame.