US 12,003,330 B2
System and method of HARQ-ACK timing and PUCCH resource determination for ultra-low latency PDSCH transmission
Zhanping Yin, Vancouver, WA (US); Tatsushi Aiba, Sakai (JP); and Kazunari Yokomakura, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP); and FG Innovation Company Limited, Tuen Mun (HK)
Appl. No. 17/265,788
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP); and FG Innovation Company Limited, Tuen Mun (HK)
PCT Filed Jul. 30, 2019, PCT No. PCT/JP2019/029861
§ 371(c)(1), (2) Date Feb. 3, 2021,
PCT Pub. No. WO2020/027143, PCT Pub. Date Feb. 6, 2020.
Claims priority of provisional application 62/714,473, filed on Aug. 3, 2018.
Prior Publication US 2021/0306107 A1, Sep. 30, 2021
Int. Cl. H04W 72/00 (2023.01); H04L 1/00 (2006.01); H04L 1/1812 (2023.01); H04L 1/1867 (2023.01); H04W 72/0446 (2023.01); H04W 72/23 (2023.01)
CPC H04L 1/1819 (2013.01) [H04L 1/0003 (2013.01); H04L 1/1896 (2013.01); H04W 72/0446 (2013.01); H04W 72/23 (2023.01)] 6 Claims
OG exemplary drawing
 
1. A user equipment (UE), comprising:
a higher layer processor configured to:
determine first Hybrid Automatic Repeat Request-Acknowledgment (HARQ-ACK) feedback timing of a first HARQ-ACK feedback used for a first physical downlink shared channel (PDSCH) transmission;
determine second HARQ-ACK feedback timing of a second HARQ-ACK feedback used for a second PDSCH transmission;
determine a first physical uplink control channel (PUCCH) resource for the first HARQ-ACK feedback; and
determine a second PUCCH resource for the second HARQ-ACK feedback; and
transmitting circuitry configured to:
transmit at least a first HARQ-ACK bit based on the first HARQ-ACK feedback timing and the first PUCCH resource; and
transmit at least a second HARQ-ACK bit based on the second HARQ-ACK feedback timing and the second PUCCH resource, wherein:
the first HARQ-ACK feedback timing is determined by a first PDSCH-to-HARQ-timing indicator field in first Downlink Control Information (DCI),
the first PDSCH-to-HARQ-timing indicator field corresponds to a value of a first radio resource control (RRC) configured table,
the second HARQ-ACK feedback timing is determined by a second PDSCH-to-HARQ-timing indicator field in second DCI,
the second PDSCH-to-HARQ-timing indicator field corresponds to a value of a second RRC configured table,
the first PDSCH-to-HARO-timing indicator field corresponding to the value of the first RRC configured table indicates a number of symbols or a number of sub-slots after the first PDSCH transmission,
the first RRC configured table and the second RRC configured table are different RRC configured tables,
the first PUCCH resource is selected from a first PUCCH resource set based on a first ACK resource indicator field in the first DCI,
the second PUCCH resource is selected from a second PUCCH resource set based on a second resource indicator field in the second DCI,
the first PUCCH resource set and the second PUCCH resource set are configured separately, and
the first PUCCH resource set is for ultra-reliable low-latency communication (URLLC) and the second PUCCH resource set is for enhanced mobile broadband (eMBB).