US 12,289,759 B2
Beam selection in unlicensed operation
Min Wang, Luleå (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/792,818
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jan. 15, 2021, PCT No. PCT/EP2021/050795
§ 371(c)(1), (2) Date Jul. 14, 2022,
PCT Pub. No. WO2021/148319, PCT Pub. Date Jul. 29, 2021.
Claims priority of provisional application 62/964,904, filed on Jan. 23, 2020.
Prior Publication US 2023/0058492 A1, Feb. 23, 2023
Int. Cl. H04W 74/08 (2024.01); H04B 7/06 (2006.01); H04W 74/0808 (2024.01); H04W 74/0833 (2024.01)
CPC H04W 74/0808 (2013.01) [H04B 7/0695 (2013.01); H04W 74/0833 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method by a user equipment (UE) for performing a random access procedure in a wireless network, the method comprising:
performing a plurality of directional listen-before-talk (LBT) procedures in a respective plurality of different directions associated with a respective plurality of beams;
determining respective first metrics based on received power of respective reference signals associated with the respective beams;
determining respective second metrics based on channel occupancy (CO) or LBT failures in the respective beams; and
selecting one of the beams to be used for the random access procedure based on the first metrics and the second metrics.