Full-duplex beam selection for sidelink communications

An apparatus for wireless communication at a second user equipment (UE), comprising:

• a memory;
• and
• one or more processors, coupled to the memory, and, based at least in part on information stored in the memory, are configured to:
• receive, using a sidelink with a first UE, a first indication of one or more candidate full-duplex (FD) beam pairs selected by the first UE for an FD sidelink transmission;
• transmit, using the sidelink, a second indication that specifies at least part of an FD beam set that includes a first FD beam pair associated with the first UE and a second FD beam pair associated with the second UE, the FD beam set being based at least in part on the one or more candidate FD beam pairs;
• and
• communicate with the first UE using the sidelink based at least in part on the FD beam set and the FD sidelink transmission.

A method of wireless communication performed by a first user equipment (UE), comprising:

• transmitting, using a sidelink with a second UE, a first indication of one or more candidate full-duplex (FD) beam pairs selected by the first UE for an FD sidelink transmission;
• receiving, using the sidelink, a second indication that specifies at least part of an FD beam set that includes a first FD beam pair associated with the first UE and a second FD beam pair associated with the second UE, the FD beam set being based at least in part on the one or more candidate FD beam pairs;
• and
• communicating with the second UE using the sidelink based at least in part on the FD beam set and the FD sidelink transmission.

A method of wireless communication performed by a second user equipment (UE), comprising:

• receiving, using a sidelink with a first UE, a first indication of one or more candidate full-duplex (FD) beam pairs selected by the first UE for an FD sidelink transmission;
• transmitting, using the sidelink, a second indication that specifies at least part of an FD beam set that includes a first FD beam pair associated with the first UE and a second FD beam pair associated with the second UE, the FD beam set being based at least in part on the one or more candidate FD beam pairs;
• and
• communicating with the first UE using the sidelink based at least in part on the FD beam set and the FD sidelink transmission.