US 12,341,722 B2
Techniques for downlink feedback from multiple transmission and reception points
Mostafa Khoshnevisan, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); Jing Sun, San Diego, CA (US); and Tao Luo, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jul. 1, 2022, as Appl. No. 17/855,997.
Prior Publication US 2024/0007257 A1, Jan. 4, 2024
Int. Cl. H04L 5/00 (2006.01); H04L 1/1812 (2023.01); H04W 72/23 (2023.01); H04L 1/18 (2023.01)
CPC H04L 5/0055 (2013.01) [H04L 1/1812 (2013.01); H04W 72/23 (2023.01)] 28 Claims
OG exemplary drawing
 
1. A method for wireless communications at a user equipment (UE), comprising:
transmitting one or more uplink messages to at least one transmission and reception point of a plurality of transmission and reception points, wherein each uplink message of the one or more uplink messages is associated with a first control resource set pool index value or a second control resource set pool index value, and wherein each uplink message is associated with a hybrid automatic repeat request (HARQ) identifier of a set of HARQ identifiers;
receiving, from a transmission and reception point of the plurality of transmission and reception points, a downlink message indicating downlink feedback information for the set of HARQ identifiers, wherein the downlink feedback information is associated with the first control resource set pool index value or the second control resource set pool index value, and wherein the downlink feedback information is valid for at least one HARQ identifier of the set of HARQ identifiers based at least in part on a control resource set pool index value associated with the downlink feedback information and a control resource set pool index value associated with at least one uplink message of the one or more uplink messages; and
determining that the downlink feedback information for a first HARQ identifier of the set of HARQ identifiers is valid based at least in part on a first symbol of the downlink message occurring after a last symbol of a first uplink message associated with the first HARQ identifier by a first time threshold, wherein the first time threshold is used for identifying a latest-transmitted uplink message associated with at least one HARQ identifier of the set of HARQ identifiers.