US 12,348,317 B2
Systems and methods for reliable MAC CE ACK/NACK confirmation
Siva Muruganathan, Stittsville (CA); and Xingqin Lin, San Jose, CA (US)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/768,535
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Oct. 14, 2020, PCT No. PCT/IB2020/059667
§ 371(c)(1), (2) Date Apr. 13, 2022,
PCT Pub. No. WO2021/074827, PCT Pub. Date Apr. 22, 2021.
Claims priority of provisional application 62/915,423, filed on Oct. 15, 2019.
Prior Publication US 2023/0275705 A1, Aug. 31, 2023
Int. Cl. H04L 1/1829 (2023.01)
CPC H04L 1/1861 (2013.01) [H04L 1/1864 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method performed by a wireless device for transmitting feedback, the method comprising one or more of:
being configured by a network node with at least one feedback enabled Hybrid Automatic Repeat Request, HARQ, process while remaining HARQ processes of the wireless device have the feedback disabled;
receiving an indication of a number of slots, X, as part of a System Information Block, SIB, wherein X is specific to a delay associated with HARQ Acknowledgement/Negative Acknowledgement, ACK/NACK, feedback;
receiving, from the network node, a first Physical Downlink Shared Channel, PDSCH, carrying a Medium Access Control, MAC, Control Element, CE, activation/deactivation command requiring a HARQ ACK/NACK feedback on a Physical Uplink Control Channel, PUCCH, using the at least one feedback enabled HARQ process;
transmitting the HARQ ACK/NACK feedback on the PUCCH in a slot n corresponding to the first PDSCH on the PUCCH;
determining a delay term via multiplying X by a number of slots per subframe for a subcarrier spacing, SCS, μ associated with the PUCCH; and
assuming that an information in the MAC CE activation/deactivation command is applied at the wireless device from a slot n′ where the slot n′ is after a delay given by the determined delay term from the slot n.