US 11,990,999 B2
Method and apparatus for feeding back hybrid automatic repeat request of downlink data
Jiehua Xiao, Shenzhen (CN); Yongxia Lyu, Ottawa (CA); and Fredrik Berggren, Kista (SE)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Jun. 10, 2020, as Appl. No. 16/897,812.
Application 16/897,812 is a continuation of application No. 16/139,688, filed on Sep. 24, 2018, granted, now 10,686,562.
Application 16/139,688 is a continuation of application No. PCT/CN2017/078094, filed on Mar. 24, 2017.
Claims priority of application No. PCT/CN2016/077255 (WO), filed on Mar. 24, 2016.
Prior Publication US 2020/0304244 A1, Sep. 24, 2020
Int. Cl. H04L 1/1812 (2023.01); H04L 1/16 (2023.01); H04L 1/1607 (2023.01); H04L 1/1829 (2023.01); H04W 72/23 (2023.01); H04L 5/00 (2006.01)
CPC H04L 1/1812 (2013.01) [H04L 1/16 (2013.01); H04L 1/1607 (2013.01); H04L 1/1854 (2013.01); H04W 72/23 (2023.01); H04L 5/001 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by an apparatus, the method comprising:
receiving downlink control information (DCI) from a base station using a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (EPDCCH);
determining a hybrid automatic repeat request (HARQ) feedback codebook according to a total downlink assignment indicator (total DAI) in the DCI;
in response to a semi-persistent scheduling (SPS) physical downlink shared channel (PDSCH) transmission being activated, adding one HARQ bit for the SPS PDSCH transmission to the HARQ feedback codebook, wherein the one HARQ bit for the SPS PDSCH transmission is associated with reception of the SPS PDSCH transmission; and
sending the HARQ feedback codebook to the base station.