Calibration via two-way signaling to enable antenna module combining

An apparatus for wireless communications, comprising:

• at least one transceiver;
• multiple antenna modules;
• at least one memory comprising instructions;
• and
• one or more processors, individually or collectively, configured to execute the instructions to cause the apparatus to:
• receive, via the at least one transceiver, a first set of transmissions via multiple antenna elements from the multiple antenna modules by using a set of beam weights, wherein one or more of the multiple antenna elements are associated with first parameter information, and wherein the first parameter information indicates at least one of:
• a phase response or an amplitude response corresponding to a receive portion of a radio frequency (RF) circuit of the one or more of the multiple antenna elements;
• transmit, via the at least one transceiver, a second set of transmissions via the multiple antenna elements by using the set of beam weights, wherein the one or more of the multiple antenna elements are associated with second parameter information, and wherein the second parameter information indicates at least one of:
• a phase response or an amplitude response corresponding to a transmit portion of the RF circuit of the one or more of the multiple antenna elements;
• and
• adjust the set of beam weights in accordance with one or more differences between the first parameter information and the second parameter information.