US 12,355,614 B2
Failure recovery and beam selection in wireless communications
Ali Cirik, Herndon, VA (US); Esmael Dinan, McLean, VA (US); Hua Zhou, Herndon, VA (US); Hyoungsuk Jeon, Centreville, VA (US); Alireza Babaei, Fairfax, VA (US); Kyungmin Park, Herndon, VA (US); Kai Xu, Herndon, VA (US); Yunjung Yi, Vienna, VA (US); and Youngwoo Kwak, Vienna, VA (US)
Assigned to Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed by Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed on Feb. 7, 2020, as Appl. No. 16/785,272.
Claims priority of provisional application 62/824,717, filed on Mar. 27, 2019.
Claims priority of provisional application 62/802,896, filed on Feb. 8, 2019.
Prior Publication US 2020/0260300 A1, Aug. 13, 2020
Int. Cl. H04L 41/0668 (2022.01); H04L 5/00 (2006.01); H04W 24/04 (2009.01); H04W 24/08 (2009.01); H04W 36/00 (2009.01); H04W 72/044 (2023.01); H04W 72/21 (2023.01)
CPC H04L 41/0668 (2013.01) [H04L 5/0048 (2013.01); H04W 24/04 (2013.01); H04W 24/08 (2013.01); H04W 72/046 (2013.01); H04W 72/21 (2023.01); H04W 36/0069 (2018.08)] 28 Claims
OG exemplary drawing
 
1. A method comprising:
transmitting, by a wireless device, a first uplink signal associated with beam failure recovery (BFR) for a cell configured with a physical uplink control channel (PUCCH), wherein the first uplink signal comprises:
a first field indicating the cell, and
a second field indicating a candidate beam reference signal (RS) associated with the cell; and
after completing the BFR for the cell, transmitting a second uplink signal via the PUCCH using a spatial filter that is determined based on whether the cell is a primary cell or a secondary cell.