US 11,778,680 B2
Beam failure recovery for secondary cell
Jung Ho Ryu, Fort Lee, NJ (US); Yan Zhou, San Diego, CA (US); Tianyang Bai, Somerville, NJ (US); Tao Luo, San Diego, CA (US); Kiran Venugopal, Raritan, NJ (US); and Junyi Li, Chester, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Aug. 25, 2020, as Appl. No. 17/2,549.
Claims priority of provisional application 62/891,859, filed on Aug. 26, 2019.
Prior Publication US 2021/0068188 A1, Mar. 4, 2021
Int. Cl. H04W 76/19 (2018.01); H04W 24/04 (2009.01); H04L 5/00 (2006.01)
CPC H04W 76/19 (2018.02) [H04L 5/0048 (2013.01); H04W 24/04 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method of wireless communication by a user equipment (UE), comprising:
transmitting, to a primary cell, a beam failure recovery request associated with a beam failure event associated with a first beam associated with a secondary cell associated with the primary cell;
selecting, before transmitting the beam failure recovery request, a second beam for communications with the secondary cell;
transmitting, to the primary cell, a medium access control (MAC) control element (CE) including an indication of the beam failure event and including information about the second beam; and
receiving, associated with the MAC CE and before receiving a response associated with the beam failure recovery request, a communication from the secondary cell using the second beam.