System and method for user equipment assisted over-the-air calibration

A device comprising:

• a transceiver configured to receive a sounding reference signal (SRS) symbol from a user equipment (UE);
• and
• a processor operably connected to the transceiver, the processor configured to estimate an uplink (UL) channel from the UE to a full dimensional multiple-input multiple-output (FD-MIMO) base station base band based on the received SRS symbol,
• wherein the transceiver is further configured to receive, from the UE, an estimate of a downlink (DL) channel from the FD-MIMO base station base band to the UE, and
• wherein the processor is further configured to perform a joint calibration by applying one or more calibration algorithms using channel state information (CSI) of the UL channel and the DL channel.

A non-transitory computer readable medium comprising program code that, when executed by a processor of a device, cause the device to:

• receive a sounding reference signal (SRS) symbol from a user equipment (UE);
• estimate an uplink (UL) channel from the UE to a full dimensional multiple-input multiple-output (FD-MIMO) base station base band based on the received SRS symbol;
• receive, from the UE, an estimate of a downlink (DL) channel from the FD-MIMO base station base band to the UE;
• and
• perform a joint calibration by applying one or more calibration algorithms using channel state information (CSI) of the UL channel and the DL channel.