Techniques for using a data channel for beam refinement

A method for wireless communications at a second wireless device, comprising:

• receiving, via a first beam of a first wireless device and in a first set of symbols, a first set of data and a first reference signal associated with the first set of data on a data channel, wherein the first reference signal is for beam refinement;
• receiving, via a second beam of the first wireless device and in a second set of symbols, a second set of data and a second reference signal on the data channel, wherein the second reference signal is for the beam refinement;
• and
• transmitting, to the first wireless device, beam refinement feedback information for the first beam and the second beam based at least in part on receiving the first reference signal and the second reference signal on the data channel.

An apparatus for wireless communications at a first wireless device, comprising:

• a processor,
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• transmit, via a first beam and in a first set of symbols, a first set of data and a first reference signal associated with the first set of data on a data channel, wherein the first reference signal is for beam refinement;
• transmit, via a second beam and in a second set of symbols, a second set of data and a second reference signal on the data channel, wherein the second reference signal is for the beam refinement;
• and
• receive, from a second wireless device, beam refinement feedback information for the first beam and the second beam based at least in part on transmitting the first reference signal and the second reference signal on the data channel.

An apparatus for wireless communications at a second wireless device, comprising:

• a processor,
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• receive, via a first beam of a first wireless device and in a first set of symbols, a first set of data and a first reference signal associated with the first set of data on a data channel, wherein the first reference signal is for beam refinement;
• receive, via a second beam of the first wireless device and in a second set of symbols, a second set of data and a second reference signal on the data channel, wherein the second reference signal is for the beam refinement;
• and
• transmit, to the first wireless device, beam refinement feedback information for the first beam and the second beam based at least in part on receiving the first reference signal and the second reference signal on the data channel.