US 11,812,488 B2
Methods and systems for beam recovery and management
Yugeswar Deenoo, Chalfont, PA (US); Tao Deng, Roslyn, NY (US); Martino M. Freda, Laval (CA); Ghyslain Pelletier, Montreal (CA); and Faris Alfarhan, Montreal (CA)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Filed on Jun. 23, 2022, as Appl. No. 17/848,102.
Application 17/848,102 is a continuation of application No. 16/636,210, granted, now 11,419,173, previously published as PCT/US2018/046086, filed on Aug. 9, 2018.
Claims priority of provisional application 62/668,531, filed on May 8, 2018.
Claims priority of provisional application 62/630,001, filed on Feb. 13, 2018.
Claims priority of provisional application 62/615,250, filed on Jan. 9, 2018.
Claims priority of provisional application 62/543,222, filed on Aug. 9, 2017.
Prior Publication US 2022/0322480 A1, Oct. 6, 2022
Int. Cl. H04W 88/02 (2009.01); H04W 72/21 (2023.01); H04W 72/23 (2023.01); H04W 76/19 (2018.01); H04W 76/16 (2018.01); H04W 74/08 (2009.01)
CPC H04W 76/19 (2018.02) [H04W 72/21 (2023.01); H04W 72/23 (2023.01); H04W 74/0833 (2013.01); H04W 76/16 (2018.02); H04W 88/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A wireless transmit/receive unit (WTRU) comprising a processor and memory, the processor and memory configured to:
receive configuration information, wherein the configuration information comprises an indication of one or more reference signals for beam management measurements and the configuration information comprises beam recovery configuration information, the beam recovery configuration information indicating one or more candidate beams for beam failure recovery and a respective uplink resource for each of the one or more candidate beams;
determine that beam failure has occurred based on the beam management measurements performed on the one or more reference signals, the one or more reference signals being associated with a beam used for monitoring a physical downlink control channel (PDCCH);
select a candidate beam of the one or more candidate beams for indicating the beam failure;
transmit an uplink transmission on the respective uplink resource associated with the selected candidate beam indicated by the beam recovery configuration information, and
receive a response to the uplink transmission, the response being received via a search space configured for beam failure recovery.