Efficient calibration for implicit feedback

A non-transitory computer-readable medium storing computer-executable instructions which when executed by one or more processors result in performing operations comprising:

• causing to send a first sounding frame to a first station device, wherein the first sounding frame is used for a calibration of a plurality of (TX) antennas and a plurality of (RX) antennas;
• identifying one or more quantization indices received from the first station device, wherein the one or more quantization indices are associated with a quantization of a feedback vector, wherein the quantization of the feedback vector is performed by jointly quantizing first channel estimates from an RX antenna at the first station device and each of the plurality of TX antennas at the device;
• reconstructing the feedback vector using the one or more quantization indices;
• identifying a second sounding frame from the first station device;
• determining second channel estimates based on the RX antenna at the first station device and the plurality of TX antennas at the device;
• comparing the reconstructed feedback vector with the second channel estimates;
• and
• determining a compensation scalar based on the comparison.

A method comprising:

• causing to send a first sounding frame to a first station device, wherein the first sounding frame is used for a calibration of a plurality of (TX) antennas and a plurality of (RX) antennas;
• identifying one or more quantization indices received from the first station device, wherein the one or more quantization indices are associated with a quantization of a feedback vector, wherein the quantization of the feedback vector is performed by jointly quantizing first channel estimates from an RX antenna at the first station device and each of the plurality of TX antennas at the device;
• reconstructing the feedback vector using the one or more quantization indices;
• identifying a second sounding frame from the first station device;
• determining second channel estimates based on the RX antenna at the first station device and the plurality of TX antennas at the device;
• comparing the reconstructed feedback vector with the second channel estimates;
• and
• determining a compensation scalar based on the comparison.