US 12,127,252 B2
Control signalling for transmission in a channel occupancy time (COT) period in unlicensed frequency spectrum
Min Wang, Luleå (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/430,147
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Feb. 12, 2020, PCT No. PCT/EP2020/053524
§ 371(c)(1), (2) Date Aug. 11, 2021,
PCT Pub. No. WO2020/165200, PCT Pub. Date Aug. 20, 2020.
Claims priority of provisional application 62/804,398, filed on Feb. 12, 2019.
Prior Publication US 2022/0104260 A1, Mar. 31, 2022
Int. Cl. H04W 72/0446 (2023.01); H04W 16/14 (2009.01); H04W 72/1263 (2023.01); H04W 72/23 (2023.01); H04W 74/08 (2024.01); H04W 74/0816 (2024.01)
CPC H04W 74/0816 (2013.01) [H04W 16/14 (2013.01); H04W 72/0446 (2013.01); H04W 72/1263 (2013.01); H04W 72/23 (2023.01); H04W 74/0866 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method performed by a wireless device configured for use in a wireless communication system, the method comprising:
monitoring for control signaling comprising an indication of which one or more wireless devices will be scheduled to transmit or receive within a channel occupancy time (COT) period;
determining, based on the indication of the control signaling, whether the wireless device will be scheduled within the COT period; and
monitoring or not monitoring a dedicated control channel during the COT period for a scheduling grant or assignment indicating scheduling of the wireless device according to said determining, wherein the control signaling comprises a trivial scheduling grant on a dedicated control channel, and wherein the trivial scheduling grant allocates either no radio resources to the wireless device or allocates a minimum allowed number of radio resources to the wireless device.