US 12,323,218 B2
Beam failure recovery techniques for multiple transmission-reception points in a secondary cell
Mostafa Khoshnevisan, San Diego, CA (US); Tao Luo, San Diego, CA (US); Yan Zhou, San Diego, CA (US); Linhai He, San Diego, CA (US); Peter Gaal, San Diego, CA (US); Juan Montojo, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); and Jing Sun, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on May 24, 2021, as Appl. No. 17/328,907.
Claims priority of provisional application 63/029,916, filed on May 26, 2020.
Prior Publication US 2021/0376909 A1, Dec. 2, 2021
Int. Cl. H04B 7/08 (2006.01); H04W 72/02 (2009.01); H04W 72/044 (2023.01); H04W 76/19 (2018.01); H04W 36/00 (2009.01)
CPC H04B 7/088 (2013.01) [H04W 72/02 (2013.01); H04W 72/046 (2013.01); H04W 76/19 (2018.02); H04W 36/0069 (2018.08)] 13 Claims
OG exemplary drawing
 
5. An apparatus for wireless communication at a user equipment (UE), comprising one or more memories storing processor-executable code, and one or more processors coupled with the one or more memories, wherein the one or more processors are configured to, when executing the code, cause the UE to:
establish a connection with a serving cell of the UE;
receive reference signals via a first set of failure detection resources, a second set of failure detection resources, a first set of candidate beam resources associated with the first set of failure detection resources, and a second set of candidate beam resources associated with the second set of failure detection resources;
detecting a beam failure based at least in part on a radio link quality associated with the first set of failure detection resources or the second set of failure detection resources;
transmit a recovery request message via at least one uplink control resource configured by a scheduling request identifier associated with multiple transmission-reception point beam failure recovery based at least in part on detection of the beam failure; and
transmit, in accordance with the recovery request message, a failure recovery message indicating the serving cell on which the beam failure is detected, whether the beam failure is detected for one or both of a first transmission-reception point of the serving cell or a second transmission-reception point of the serving cell, a candidate beam associated with the first set of candidate beam resources or the second set of candidate beam resources, and whether the candidate beam corresponds to the first transmission-reception point or the second transmission-reception point, wherein the failure recovery message comprises a medium access control-control element that includes a plurality of fields that each indicate beam failure detection information for a respective cell, wherein the plurality of fields are ordered with respect to a serving cell index of the respective cell,
wherein the one or more processors are further configured to cause the UE to: select a first uplink control resource or a second uplink control resource for transmission of the recovery request message based at least in part on which of the first uplink control resource or the second uplink control resource is associated with a lowest control resource set pool index value.