US 12,082,254 B2
Signalling channel access parameters for uplink transmissions
Reem Karaki, Aachen (DE); Min Wang, Luleå (SE); and Johan Rune, Lidingö (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/620,997
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jun. 26, 2020, PCT No. PCT/EP2020/068028
§ 371(c)(1), (2) Date Dec. 20, 2021,
PCT Pub. No. WO2020/260584, PCT Pub. Date Dec. 30, 2020.
Claims priority of provisional application 62/868,494, filed on Jun. 28, 2019.
Prior Publication US 2022/0330338 A1, Oct. 13, 2022
Int. Cl. H04W 74/0816 (2024.01); H04W 72/0453 (2023.01); H04W 72/1263 (2023.01); H04W 74/00 (2009.01); H04W 74/08 (2009.01)
CPC H04W 74/0816 (2013.01) [H04W 72/0453 (2013.01); H04W 72/1263 (2013.01); H04W 74/002 (2013.01); H04W 74/0866 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method performed by a wireless device, the method comprising:
receiving control information that jointly encodes respective values for two or more channel access parameters that govern performance by the wireless device of a listen-before-talk (LBT) procedure prior to an uplink transmission in a radio resource allocation, wherein the two or more channel access parameters include:
a type of the LBT procedure that the wireless device must successfully complete before performing the uplink transmission in the radio resource allocation; and
a cyclic prefix extension to extend start of the uplink transmission in the radio resource allocation, and
wherein the control information also individually encodes one or more respective values for one or more of the two or more channel access parameters, and wherein the method further comprises, for any channel access parameter whose value is both individually encoded and jointly encoded by the control information, determining a value for the channel access parameter from the individual encoding of that channel access parameter.