Beam failure recovery for secondary cell
AssigneeQUALCOMM Incorporated
InventorsJung Ho Ryu, Yan Zhou, Tianyang Bai, Tao Luo, Kiran Venugopal, Junyi Li
Life of this patent
Estimating the term…
Abstract
User equipment (UE) based beam selection for beam failure recovery operations are disclosed. A method of wireless communication includes: identifying a beam failure event associated with a first beam and a secondary cell and transmitting a beam failure recovery request for the secondary cell. The method further includes selecting a second beam for secondary cell communications prior to receiving a response to the beam failure event, and transmitting or receiving a communication to or from the secondary cell using the selected second beam.
Claims23
A method of wireless communication by a user equipment (UE), comprising:
- transmitting, to a primary cell, a beam failure recovery request associated with a beam failure event associated with a first beam associated with a secondary cell associated with the primary cell;
- selecting, before transmitting the beam failure recovery request, a second beam for communications with the secondary cell;
- transmitting, to the primary cell, a medium access control (MAC) control element (CE) including an indication of the beam failure event and including information about the second beam;
- and
- receiving, associated with the MAC CE and before receiving a response associated with the beam failure recovery request, a communication from the secondary cell using the second beam.
An apparatus configured for wireless communication, the apparatus comprising:
- at least one processor;
- and
- a memory coupled to the processor, the processor is configured to:
- transmit, to a primary cell, a beam failure recovery request associated with a beam failure event associated with a first beam associated with a secondary cell associated with the primary cell;
- select, before transmitting the beam failure recovery request, a second beam for communications with the secondary cell;
- transmit, to the primary cell, a medium access control (MAC) control element (CE) including an indication of the beam failure event and including information about the second beam;
- and
- receive, associated with the MAC CE and before receiving a response associated with the beam failure recovery request, a communication from the secondary cell using the second beam.
Dependencies are inferred from the claim text.