US 11,671,164 B2
Beam failure detection and recovery for sidelink user equipments
Sourjya Dutta, San Diego, CA (US); Kapil Gulati, Belle Mead, NJ (US); Gabi Sarkis, San Diego, CA (US); and Junyi Li, Franklin Park, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Feb. 5, 2021, as Appl. No. 17/169,143.
Prior Publication US 2022/0255615 A1, Aug. 11, 2022
Int. Cl. H04B 7/08 (2006.01); H04B 17/336 (2015.01); H04W 76/19 (2018.01); H04W 76/27 (2018.01); H04L 1/00 (2006.01); H04L 1/1829 (2023.01); H04L 1/20 (2006.01); H04L 5/00 (2006.01); H04W 74/08 (2009.01); H04W 72/20 (2023.01)
CPC H04B 7/088 (2013.01) [H04B 17/336 (2015.01); H04L 1/0004 (2013.01); H04L 1/1832 (2013.01); H04L 1/203 (2013.01); H04L 5/0055 (2013.01); H04W 72/20 (2023.01); H04W 74/0833 (2013.01); H04W 76/19 (2018.02); H04W 76/27 (2018.02)] 30 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a receiving (Rx) user equipment (UE), comprising:
receiving, from a transmitting (Tx) UE, sidelink control information (SCI) that includes sidelink control information part 1 (SCI-1) and sidelink control information part 2 (SCI-2);
determining an Rx-side block error rate (BLER) based at least in part on the SCI and at least two of:
a number of SCI-2s over a configured sliding window,
a total number of transmissions from the Tx UE over the configured sliding window,
a hybrid automatic repeat request retransmission number indicated in the SCI-2,
a sequential transmission counter indicated in SCIs received over the configured sliding window,
a signal-to-interference-plus-noise ratio (SINR) from a demodulation reference signal (DMRS) associated with the SCI-1, or
a fixed SCI transport block size and modulation and coding scheme; and
performing a beam failure recovery based at least in part on the Rx-side BLER satisfying a threshold.