US 12,262,415 B2
Semi-persistent channel state information reporting procedure with uplink clear channel assessment
Kazuyoshi Uesaka, Kawasaki Kanagawa (JP); Muhammad Ali Kazmi, Sundbyberg (SE); Iana Siomina, Täby (SE); and Santhan Thangarasa, Vällingby (SE)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/773,727
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Nov. 5, 2020, PCT No. PCT/SE2020/051066
§ 371(c)(1), (2) Date May 2, 2022,
PCT Pub. No. WO2021/091465, PCT Pub. Date May 14, 2021.
Claims priority of provisional application 62/932,005, filed on Nov. 7, 2019.
Prior Publication US 2022/0386375 A1, Dec. 1, 2022
Int. Cl. H04W 74/0816 (2024.01); H04L 1/1812 (2023.01); H04L 5/00 (2006.01); H04W 24/10 (2009.01)
CPC H04W 74/0816 (2013.01) [H04L 1/1812 (2013.01); H04L 5/0053 (2013.01); H04W 24/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method implemented in a wireless device, WD, the method comprising:
receiving a signal indicating activation or deactivation of semi-persistent channel state information, CSI, reporting;
responsive to receiving the signal, attempting to transmit a Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK), the attempt being subject to success or failure of a clear channel assessment, CCA; and
when the CCA fails and:
when the signal indicates activation, refraining from CSI measurement and reporting unless CCA subsequently succeeds before expiry of a time interval; and
when the signal indicates deactivation, continuing CSI measurement but refraining from CSI reporting unless CCA subsequently succeeds before expiry of a time interval.