US 12,308,933 B2
Beam failure recovery procedures with shared radio spectrum
Kai Xu, Herndon, VA (US); Hua Zhou, Vienna, VA (US); Esmael Hejazi Dinan, McLean, VA (US); Yunjung Yi, Vienna, VA (US); and Ali Cagatay Cirik, Chantilly, VA (US)
Assigned to Ofinno, LLC, Reston, VA (US)
Filed by Ofinno, LLC, Reston, VA (US)
Filed on Jun. 15, 2022, as Appl. No. 17/841,074.
Claims priority of provisional application 63/211,340, filed on Jun. 16, 2021.
Prior Publication US 2022/0407585 A1, Dec. 22, 2022
Int. Cl. H04L 5/00 (2006.01); H04B 7/06 (2006.01); H04B 7/08 (2006.01); H04W 72/0446 (2023.01); H04W 74/08 (2009.01); H04W 74/0816 (2024.01); H04W 76/19 (2018.01)
CPC H04B 7/088 (2013.01) [H04L 5/0051 (2013.01); H04W 72/0446 (2013.01); H04W 74/0816 (2013.01); H04W 74/0866 (2013.01); H04W 76/19 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a wireless device, one or more first messages indicating:
a periodic beam failure (BFD) reference signals (RSs);
an aperiodic BFD RS; and
a channel occupancy time (COT) duration for receiving the aperiodic BFD RS;
determining, by the wireless device, the periodic BFD RS is not received due to a failure of a listen before talk (LBT) procedure; and
transmitting, in response to the determining and based on the COT duration, a second message, for a BFD procedure, indicating the aperiodic BFD RS, wherein the aperiodic BFD RS is quasi collocated with the periodic BFD RS.