Techniques for bi-directional sidelink beam failure detection

An apparatus for wireless communications at a first user equipment (UE), 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, to a second UE, the first set of sidelink beam failure detection reference signals using a set of sidelink transmit beams;
• monitor for a second set of sidelink beam failure detection reference signals using a set of sidelink receive beams;
• and
• communicate with the second UE on a sidelink based at least in part on the first set of sidelink beam failure detection reference signals and the second set of sidelink beam failure detection reference signals.

An apparatus for wireless communications at a first user equipment (UE), comprising:

• means for transmitting, to a second UE, a first set of sidelink beam failure detection reference signals using a set of sidelink transmit beams;
• means for monitoring for a second set of sidelink beam failure detection reference signals using a set of sidelink receive beams;
• and
• means for communicating with the second UE on a sidelink based at least in part on the first set of sidelink beam failure detection reference signals and the second set of sidelink beam failure detection reference signals.

A non-transitory computer-readable medium storing code for wireless communications at a first user equipment (UE), the code comprising instructions executable by a processor to:

• transmit, to a second UE, a first set of sidelink beam failure detection reference signals using a set of sidelink transmit beams;
• monitor for a second set of sidelink beam failure detection reference signals using a set of sidelink receive beams;
• and
• communicate with the second UE on a sidelink based at least in part on the first set of sidelink beam failure detection reference signals and the second set of sidelink beam failure detection reference signals.