US 12,170,563 B2
Beam information delivery for SCell beam failure recovery operation in NR
Guotong Wang, Santa Clara, CA (US); Yushu Zhang, Beijing (CN); Alexei Davydov, Santa Clara, CA (US); and Gang Xiong, Santa Clara, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Appl. No. 17/437,804
Filed by Apple Inc., Cupertino, CA (US)
PCT Filed May 8, 2020, PCT No. PCT/US2020/032158
§ 371(c)(1), (2) Date Sep. 9, 2021,
PCT Pub. No. WO2020/231832, PCT Pub. Date Nov. 19, 2020.
Claims priority of provisional application 62/846,354, filed on May 10, 2019.
Prior Publication US 2022/0149922 A1, May 12, 2022
Int. Cl. H04W 76/19 (2018.01); H04B 7/06 (2006.01); H04B 7/08 (2006.01); H04L 5/00 (2006.01); H04W 56/00 (2009.01)
CPC H04B 7/0695 (2013.01) [H04B 7/0626 (2013.01); H04B 7/088 (2013.01); H04L 5/0051 (2013.01); H04W 56/001 (2013.01); H04W 76/19 (2018.02)] 20 Claims
OG exemplary drawing
 
1. A baseband processor comprising circuitry configured to:
establish a wireless link with a cellular base station, wherein according to the wireless link the baseband processor is configured to communicate using at least a primary cell and a secondary cell;
detect beam failure on the secondary cell;
send an indication of the beam failure for the secondary cell to the cellular base station;
receive information configuring multiple types of reference signals as candidate transmit beams for the baseband processor for performing beam failure recovery on the secondary cell, wherein the information comprises a first list that includes only a first type of reference signals and a second list that includes only a second type of reference signals;
perform beam identification using the configured candidate transmit beams to identify a new transmit beam; and
provide an indication of the new transmit beam to the cellular base station, wherein the indication of the new transmit beam includes an indication of whether the new transmit beam is associated with the first list or the second list.