US 12,446,071 B2
Beam switching after performing listen-before-talk
Ali Ramadan Ali, Munich (DE); Ankit Bhamri, Rödermark (DE); and Karthikeyan Ganesan, Nauheim (DE)
Assigned to Lenovo (Singapore) Pte. Ltd., Singapore (SG)
Appl. No. 17/906,133
Filed by Lenovo (Singapore) PTE. LTD., New Tech Park (SG)
PCT Filed Mar. 11, 2021, PCT No. PCT/IB2021/052052
§ 371(c)(1), (2) Date Sep. 12, 2022,
PCT Pub. No. WO2021/181336, PCT Pub. Date Sep. 16, 2021.
Claims priority of provisional application 62/988,360, filed on Mar. 11, 2020.
Prior Publication US 2023/0104600 A1, Apr. 6, 2023
Int. Cl. H04W 74/0816 (2024.01); H04W 16/28 (2009.01)
CPC H04W 74/0816 (2013.01) [H04W 16/28 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method performed by a user equipment (“UE”), the method comprising:
generating a first transport block (“TB”) for a first uplink (“UL”) channel resource;
performing a directional listen-before-talk (“LBT”) procedure for a first beam associated with the first UL channel resource;
transmitting, to a radio access network (“RAN”) node, request information using the first UL channel resource in response to successful directional LBT, wherein the request information comprises a previously configured sounding reference signal (“SRS”) sequence;
receiving, from the RAN node, feedback information in response to the request information; and
transmitting the first TB using the first UL channel resource in response to receiving the feedback information.