US 12,335,961 B2
Resources for uplink control information multiplexing in an absence of demodulation reference signals
Gokul Sridharan, Sunnyvale, CA (US); Mahmoud Taherzadeh Boroujeni, San Diego, CA (US); Hung Dinh Ly, San Diego, CA (US); and Peter Gaal, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 17, 2021, as Appl. No. 17/478,813.
Prior Publication US 2023/0090447 A1, Mar. 23, 2023
Int. Cl. H04W 72/23 (2023.01); H04L 1/1867 (2023.01); H04L 5/00 (2006.01); H04W 72/0446 (2023.01); H04W 72/1268 (2023.01)
CPC H04W 72/23 (2023.01) [H04L 1/1896 (2013.01); H04L 5/0051 (2013.01); H04W 72/0446 (2013.01); H04W 72/1268 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An apparatus for wireless communication at a user equipment (UE), comprising:
one or more processors;
memory coupled with the one or more processors; and
instructions stored in the memory and executable by the one or more processors to cause the apparatus to:
receive, from a network device, downlink control information scheduling uplink data transmissions from the UE to the network device in a plurality of slots, wherein the uplink data transmissions comprise repeated uplink data transmissions, and wherein the plurality of slots includes, at least, a first slot in which a demodulation reference signal (DMRS) is present in a physical uplink shared channel (PUSCH) and a second slot in which the DMRS is absent from the PUSCH, and wherein the DMRS facilitates cross-slot channel estimation for the uplink data transmissions in slots of the plurality of slots;
determine that uplink control information comprising feedback information is to be multiplexed with an uplink data transmission of the scheduled uplink data transmissions in the second slot of the plurality of slots;
identify a symbol for transmission of the feedback information in the second slot after determination of an absence of the DMRS in the second slot, wherein identifying the symbol is based at least in part on a reference symbol within the second slot, wherein a relation between the identified symbol for transmission of the feedback information in the second slot and the reference symbol is defined at the UE;
transmit the feedback information in the identified symbol; and
perform channel estimation for the uplink data transmissions using the DMRS across slots of the plurality of slots.