US 12,356,449 B2
LBT procedure for a set of panels and/or beams
Joachim Loehr, Wiesbaden (DE); Alexander Johann Maria Golitschek Edler von Elbwart, Darmstadt (DE); Ankit Bhamri, Rödermark (DE); Ali Ramadan Ali, Kraiburg am Inn (DE); Karthikeyan Ganesan, Kronberg im Taunus (DE); and Prateek Basu Mallick, Dreieich (DE)
Assigned to Lenovo (Singapore) Pte. Ltd., Singapore (SG)
Appl. No. 17/760,234
Filed by Lenovo (Singapore) PTE. LTD., New Tech Park (SG)
PCT Filed Feb. 5, 2021, PCT No. PCT/IB2021/050964
§ 371(c)(1), (2) Date Aug. 5, 2022,
PCT Pub. No. WO2021/156822, PCT Pub. Date Aug. 12, 2021.
Claims priority of provisional application 62/970,594, filed on Feb. 5, 2020.
Prior Publication US 2023/0054184 A1, Feb. 23, 2023
Int. Cl. H04W 74/0808 (2024.01)
CPC H04W 74/0808 (2013.01) 19 Claims
OG exemplary drawing
 
1. A method performed by a user equipment device (“UE”), the method comprising:
performing a listen-before-talk (“LBT”) procedure for a configured set of transmit (“Tx”) beams corresponding to an uplink transmission, the set of Tx beams comprising at least one group of beams having a same quasi-co-location (“QCL”) relationship;
determining an LBT failure for the uplink transmission in response to determining that the LBT procedure has failed for all Tx beams in the configured set;
incrementing a first LBT failure counter in response to LBT failure for the uplink transmission;
tracking a second LBT failure counter for each group of beams in the set of Tx beams; and
incrementing the second LBT failure counter in response to all Tx beams in a respective group of beams experiencing LBT failure.