US 12,170,626 B2
Systems and methods of joint HARQ feedback for PDSCH transmission over multiple TRPs
Mattias Frenne, Uppsala (SE); Robert Baldemair, Solna (SE); Shiwei Gao, Nepean (CA); and Siva Muruganathan, Stittsville (CA)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/622,345
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jun. 25, 2020, PCT No. PCT/IB2020/056020
§ 371(c)(1), (2) Date Dec. 23, 2021,
PCT Pub. No. WO2020/261174, PCT Pub. Date Dec. 30, 2020.
Claims priority of provisional application 62/866,408, filed on Jun. 25, 2019.
Prior Publication US 2022/0256573 A1, Aug. 11, 2022
Int. Cl. H04L 5/00 (2006.01); H04L 1/1812 (2023.01); H04L 27/26 (2006.01); H04W 72/0446 (2023.01); H04W 72/1273 (2023.01); H04W 72/23 (2023.01)
CPC H04L 5/001 (2013.01) [H04L 1/1812 (2013.01); H04L 5/0051 (2013.01); H04L 5/0053 (2013.01); H04W 72/0446 (2013.01); H04W 72/1273 (2013.01); H04W 72/23 (2023.01); H04L 27/2602 (2013.01); H04L 27/261 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method performed by a wireless device for enabling transmission feedback, the method comprising:
receiving a configuration with a set of Physical Downlink Shared Channel, PDSCH-to-Hybrid Automatic Repeat Request, HARQ-feedback timing, K1, values and a list of PDSCH time domain resource allocations per slot in a serving cell;
receiving an indication to allocate two entries, a first entry and a second entry, in a Type-1 HARQ-ACK codebook for each of the configured K1 values and each set of overlapping PDSCH time domain resource allocations, wherein receiving the indication to allocate the two entries can be either explicit or implicit;
receiving a first Transport Block, TB, and a second TB in the serving cell;
determining the first TB and the second TB based on a Control Resource Set, CORESET, group identifier of a CORESET over which a corresponding Downlink Control Information, DCI, scheduling the TB is received; and
mapping a HARQ-ACK bit for the first TB to the first entry and a HARQ-ACK bit for the second TB to the second entry in the Type-1 HARQ-ACK codebook associated with a same K1 value and a same or overlapping PDSCH time domain resource allocation;
wherein receiving the first TB and the second TB comprises receiving in a slot the first TB scheduled by a first DCI, from a first Transmission Reception Point, TRP, represented by a first CORESET group identifier and the second TB scheduled by a second DCI from a second TRP, represented by a second CORESET group identifier, wherein the first and the second TBs have a same or overlapping time domain resource allocation and a same K1 value.