US 11,729,049 B2
Uplink beam failure recovery
Mostafa Khoshnevisan, San Diego, CA (US); Jing Sun, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); and Yitao Chen, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on May 10, 2021, as Appl. No. 17/315,880.
Prior Publication US 2022/0360490 A1, Nov. 10, 2022
Int. Cl. H04L 12/24 (2006.01); H04L 5/00 (2006.01); H04W 72/14 (2009.01); H04W 72/12 (2023.01); H04W 72/04 (2023.01); H04L 41/0668 (2022.01); H04W 72/1268 (2023.01); H04W 72/23 (2023.01); H04W 72/0453 (2023.01)
CPC H04L 41/0668 (2013.01) [H04L 5/0048 (2013.01); H04W 72/1268 (2013.01); H04W 72/23 (2023.01); H04W 72/0453 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A method for wireless communication at a user equipment (UE), comprising:
transmitting, using one or more first uplink beams, one or more uplink signals configured for uplink beam failure detection;
receiving control signaling that indicates an uplink beam failure occurred based at least in part on measurements of the one or more uplink signals by a network node, the control signaling indicating one or more second uplink beams for uplink communications, the one or more second uplink beams for the uplink communications being decoupled from a downlink beam for downlink communications, wherein detection of the uplink beam failure by the network node is based at least in part on the one or more first uplink beams being decoupled from the downlink beam;
transmitting a feedback message in response to the control signaling, wherein the feedback message acknowledges the one or more second uplink beams for the uplink communications that are indicated via the control signaling; and
transmitting the uplink communications using the one or more second uplink beams that are indicated via the feedback message.