Methods, architectures, apparatuses and systems for sidelink beam failure detection and recovery

Abstract

The disclosure pertains to procedures, methods, architectures, apparatus, systems, devices, and computer program products for sidelink beamformed operation. A method may include transmitting a first set of sidelink channel state information reference signal (CSI-RS) transmissions using a transmit (TX) beam of an active beam pair of a sidelink with a second WTRU and transmitting a second set of sidelink CSI-RS transmissions using a TX beam of an alternative beam pair of the sidelink. The method may include determining a beam failure to have occurred based on detection of a first sidelink transmission from the second WTRU corresponding to the first set of sidelink CSI-RS transmissions and detection of a second sidelink transmission corresponding to the second set of sidelink CSI-RS transmissions. Responsive to a determination that a beam failure has occurred, the method may include transmitting a third set of sidelink CSI-RS transmissions to request beam pair reporting.

Dependencies are inferred from the claim text.