Patent ID: 8155597

Claim:
A network device, comprising: a first feedback module configured to selectively generate a first transmission schedule if a transmission schedule is not predetermined, wherein the first transmission schedule includes a first matrix map, and wherein the first transmission schedule is to be transmitted from the network device to a link partner; and a first calibration module configured to selectively transmit a first set of training signals from the network device to the link partner, receive a first set of channel state information (CSI) (i) generated by the link partner based on the first set of training signals received from the network device and (ii) transmitted by the link partner to the network device according to the first transmission schedule received from the network device, and generate a first CSI matrix based on (i) the first set of CSI received from the link partner and (ii) the first matrix map, wherein the first transmission schedule includes a first subcarrier schedule to determine an order of transmitting subcarriers of first radio frequency (RF) signals, wherein the first matrix map determines a sequence for communicating elements of the first set of CSI, where the elements of the first set of CSI constitute elements of the first CSI matrix, wherein the first calibration module is configured to (i) generate the same first set of training signals for each of the subcarriers and (ii) receive the first set of CSI for each of the subcarriers, and wherein the first set of CSI includes signal-to-noise ratios (SNRs) of the subcarriers.