US 12,323,255 B2
HARQ-ACK feedback timing for SPS PDSCH
Haipeng Lei, Beijing (CN); Zhi Yan, Beijing (CN); and Lianhai Wu, Beijing (CN)
Assigned to Lenovo (Beijing) Limited, Beijing (CN)
Appl. No. 16/638,394
Filed by Lenovo (Beijing) Limited, Beijing (CN)
PCT Filed Aug. 11, 2017, PCT No. PCT/CN2017/097161
§ 371(c)(1), (2) Date Feb. 11, 2020,
PCT Pub. No. WO2019/028857, PCT Pub. Date Feb. 14, 2019.
Prior Publication US 2020/0374048 A1, Nov. 26, 2020
Int. Cl. H04L 1/1829 (2023.01); H04L 5/00 (2006.01); H04W 52/14 (2009.01); H04W 72/0446 (2023.01)
CPC H04L 1/1854 (2013.01) [H04L 5/0055 (2013.01); H04W 52/146 (2013.01); H04W 72/0446 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A user equipment (“UE”) for wireless communication, comprising:
at least one memory; and
at least one processor coupled with the at least one memory and configured to cause the UE to:
receive a radio resource control (“RRC”) signal from a base unit for configuring a semi-persistent scheduling (“SPS”) Radio Network Temporary Identifier (“RNTI”), wherein the RRC signal further comprises a plurality of candidate timing values;
detect a group-common physical downlink control channel (“PDCCH”) transmission, wherein the group-common PDCCH transmission comprises a Slot Format Indicator (“SFI”) field;
select a timing value from the plurality of candidate timing values based on a timing indicator in the SFI field of the group-common PDCCH transmission;
determine a feedback timing for a SPS physical downlink shared channel (“PDSCH”) transmission associated with the SPS RNTI, where the feedback timing is determined based at least in part on the selected timing value, and wherein the SPS PDSCH transmission has no corresponding PDCCH transmission to indicate the feedback timing; and
transmit hybrid automatic repeat request acknowledgement (“HARQ-ACK”) feedback to the base unit in a first slot defined by the feedback timing, the HARQ-ACK feedback indicating whether the SPS PDSCH transmission was successfully received.