US 12,068,862 B2
Method for enhanced HARQ-ACK feedback in wireless communications
Hong He, San Jose, CA (US); Dawei Zhang, Saratoga, CA (US); Wei Zeng, Saratoga, CA (US); Haitong Sun, Cupertino, CA (US); Yushu Zhang, Beijing (CN); Chunhai Yao, Beijing (CN); Seyed Ali Akbar Fakoorian, San Diego, CA (US); Chunxuan Ye, San Diego, CA (US); Huaning Niu, San Jose, CA (US); Oghenekome Oteri, San Diego, CA (US); Sigen Ye, Whitehouse Station, NJ (US); Weidong Yang, San Diego, CA (US); Yang Tang, San Jose, CA (US); and Jie Cui, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/441,680
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Jan. 14, 2021, PCT No. PCT/CN2021/071815
§ 371(c)(1), (2) Date Sep. 21, 2021,
PCT Pub. No. WO2022/151180, PCT Pub. Date Jul. 21, 2022.
Prior Publication US 2023/0361938 A1, Nov. 9, 2023
Int. Cl. H04L 1/1829 (2023.01); H04W 72/11 (2023.01); H04W 72/232 (2023.01)
CPC H04L 1/1854 (2013.01) [H04L 1/1832 (2013.01); H04W 72/11 (2023.01); H04W 72/232 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
a transceiver configured to operate in a wireless network;
a processor coupled to the transceiver, configured to:
receive a semi-persistent scheduling (SPS) Physical Downlink Shared Channel (PDSCH) transmission or a Physical Downlink Control Channel (PDCCH) transmission corresponding to an SPS PDSCH release;
generate a first Hybrid Automatic Repeat Request (HARQ)-ACK information bit corresponding to reception of the SPS PDSCH transmission or the PDCCH transmission, wherein a valid Uplink (UL) transmission slot corresponding to the reception is not available;
transmit, using the transceiver, the first HARQ-ACK information bit in a Physical Uplink Control Channel (PUCCH) transmission of a UL transmission slot n, wherein n is an integer;
receive a Downlink Control Information (DCI) format comprising a Window Indicator Information Element (IE); and
based on the DCI format, trigger a one-shot HARQ-ACK feedback for one or more second SPS PDSCH transmissions received within a first HARQ-ACK window corresponding to the DCI format, wherein original HARQ-ACK information bits corresponding to the one or more second SPS PDSCH transmissions were deferred due to an unavailable UL transmission slot.