US 12,308,966 B2
Reliable HARQ-ACK transmission in unlicensed spectrum
Faris Alfarhan, Montreal (CA); Patrick Tooher, Montreal (CA); Aata El Hamss, Laval (CA); Paul Marinier, Brossard (CA); and Ghyslain Pelletier, Montreal (CA)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Appl. No. 17/798,385
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
PCT Filed Feb. 11, 2021, PCT No. PCT/US2021/017666
§ 371(c)(1), (2) Date Aug. 9, 2022,
PCT Pub. No. WO2021/163330, PCT Pub. Date Aug. 19, 2021.
Claims priority of provisional application 63/060,960, filed on Aug. 4, 2020.
Claims priority of provisional application 62/975,535, filed on Feb. 12, 2020.
Prior Publication US 2023/0074723 A1, Mar. 9, 2023
Int. Cl. H04L 1/16 (2023.01); H04L 1/1607 (2023.01)
CPC H04L 1/1614 (2013.01) 17 Claims
OG exemplary drawing
 
1. A wireless transmit/receive unit (WTRU) comprising:
a processor configured to:
receive configuration information for providing hybrid automatic repeat request (HARQ) feedback, wherein the configuration information indicates one or more HARQ feedback groups, and wherein each HARQ feedback group is associated with one or more serving cells and one or more HARQ processes;
receive downlink control information (DCI) indicating that the WTRU is to transmit one or more HARQ feedback bits corresponding to a first HARQ feedback group of the one or more HARQ feedback groups; and
transmit a one-shot HARQ feedback transmission, wherein the one-shot HARQ feedback transmission comprises the one or more HARQ feedback bits corresponding to the first HARQ feedback group of the one or more HARQ feedback groups, wherein the first HARQ feedback group is associated with at least a first serving cell and at least a first HARQ process.