Transmission of a beam failure recovery request via a secondary cell used for carrier aggregation

A method of wireless communication performed by a network entity, comprising:

• communicating with a user equipment (UE) using a primary cell (PCell) and a secondary cell (SCell) for carrier aggregation;
• indicating, to the UE, a rule indicating that a plurality of SCells are to be used for transmission of a plurality of beam failure recovery requests based at least in part on:
• the plurality of SCells being associated with channel measurement conditions that satisfy a condition or threshold;
• receiving the beam failure recovery requests from the UE for the plurality of SCells, wherein the beam failure recovery requests are received from all SCells, configured for the UE, that satisfy the condition or the threshold;
• and
• transmitting a beam failure recovery response to the UE based at least in part on receiving the beam failure recovery requests.

A user equipment (UE) for wireless communication, comprising:

• a memory;
• and
• one or more processors coupled to the memory and configured to cause the UE to:
• detect beam failure on a secondary cell (SCell), wherein the UE is configured with a primary cell (PCell) and the SCell for carrier aggregation with a network entity;
• identify a plurality of resources for transmission of a plurality of beam failure recovery requests based at least in part on detecting the beam failure, wherein the plurality of resources are on a plurality of SCells configured for the UE,
• wherein the plurality of SCells, on which the plurality of beam failure recovery requests are to be transmitted, are indicated by a rule indicating that the plurality of SCells are to be identified based at least in part on:
• the plurality of SCells being associated with channel measurement conditions that satisfy a condition or threshold, and
• wherein the plurality of SCells includes all SCells, configured for the UE, that satisfy the condition or the threshold;
• and
• transmit the beam failure recovery requests to the network entity using the plurality of resources.

A network entity for wireless communication, comprising:

• a memory;
• and
• one or more processors coupled to the memory, the one or more processors configured to cause the network entity to:
• communicate with a user equipment (UE) using a primary cell (PCell) and a secondary cell (SCell) for carrier aggregation;
• indicate, to the UE, a rule indicating that a plurality of SCells are to be used for transmission of a plurality of beam failure recovery requests based at least in part on:
• the plurality of SCells being associated with channel measurement conditions that satisfy a condition or threshold;
• receive the beam failure recovery requests from the UE for the plurality of SCells, wherein the beam failure recovery requests are received from all SCells, configured for the UE, that satisfy the condition or the threshold;
• and
• transmit a beam failure recovery response to the UE based at least in part on receiving the beam failure recovery requests.