US 12,068,859 B2
HARQ codebook determination in wireless communications
Hong He, San Jose, CA (US); Chunhai Yao, Beijing (CN); Chunxuan Ye, San Diego, CA (US); Dawei Zhang, Saratoga, CA (US); Haitong Sun, Cupertino, CA (US); Huaning Niu, San Jose, CA (US); Jie Cui, San Jose, CA (US); Oghenekome Oteri, San Diego, CA (US); Sigen Ye, Whitehouse Station, NJ (US); Wei Zeng, Saratoga, CA (US); Weidong Yang, San Diego, CA (US); Yang Tang, San Jose, CA (US); and Yushu Zhang, Beijing (CN)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/593,333
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed Oct. 15, 2020, PCT No. PCT/CN2020/121298
§ 371(c)(1), (2) Date Sep. 15, 2021,
PCT Pub. No. WO2022/077386, PCT Pub. Date Apr. 21, 2022.
Prior Publication US 2022/0311549 A1, Sep. 29, 2022
Int. Cl. H04L 1/1812 (2023.01); H04L 5/00 (2006.01); H04W 72/23 (2023.01)
CPC H04L 1/1812 (2013.01) [H04L 5/001 (2013.01); H04W 72/23 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
a transceiver configured to communicate with a base station; and
a processor communicatively coupled to the transceiver and configured to perform operations comprising:
receiving a plurality of downlink control information (DCI) transmissions during a corresponding plurality of physical downlink control channel (PDCCH) monitoring occasions from the base station, wherein each DCI transmission schedules multiple physical downlink shared channel (PDSCH) transmissions on a corresponding one of a plurality of component carriers (CCs);
receiving a time domain resource allocation (TDRA) table configuration from the base station;
determining a maximum number of PDSCH transmissions per CC based on the TDRA table configuration;
grouping the plurality of CCs together, wherein CCs having the same maximum number of PDSCH transmissions per CC are grouped together, and wherein a maximum number of PDSCH transmissions per group is equivalent to the maximum number of PDSCH transmissions per CC;
determining a hybrid automatic repeat request (HARQ)-acknowledgement (ACK) codebook size based on a number of the multiple PDSCH transmissions, the maximum number of PDSCH transmissions, and a resulting ACK or negative acknowledgement (NACK) for each of the multiple PDSCH transmissions; and
generating a plurality of HARQ bits for each of the multiple PDSCH transmissions, wherein the plurality of HARQ bits is equal to the maximum number of PDSCH transmissions per group.