Beam failure detection and recovery
AssigneeQUALCOMM Incorporated
InventorsShanyu Zhou, Jelena Damnjanovic, Juan Montojo
Life of this patent
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Abstract
Certain aspects of the present disclosure provide techniques for beam failure detection and recovery. An example method of wireless communication by a user equipment generally includes detecting a beam failure associated with a reference signal from a network entity and transmitting, to the network entity before initiating a beam failure recovery procedure, a request for a beam switch in response to the detected beam failure. The method also includes receiving, from the network entity, an indication to communicate via a beam in response to the request and communicating with the network entity via the beam based on the indication.
Claims30
A method of wireless communication by a user equipment, comprising:
- detecting a beam failure associated with a reference signal from a network entity, wherein detecting the beam failure comprises detecting a first condition that reception of the reference signal is blocked for a first duration, and wherein the reference signal is a synchronization signal block (SSB) or a channel state information (CSI) reference signal (RS);
- transmitting, to the network entity before initiating a beam failure recovery procedure, a request for a beam switch in response to the detected beam failure;
- receiving, from the network entity, an indication to communicate via a beam in response to the request;
- and
- communicating with the network entity via the beam based on the indication.
An apparatus for wireless communication, comprising:
- a memory comprising instructions;
- and
- one or more processors configured to execute the instructions and cause the apparatus to:
- detect a beam failure associated with a reference signal from a network entity by detecting a first condition that reception of the reference signal is blocked for a first duration, wherein the reference signal is a synchronization signal block (SSB) or a channel state information (CSI) reference signal (RS),
- transmit, to the network entity before initiating a beam failure recovery procedure, a request for a beam switch in response to the detected beam failure,
- receive, from the network entity, an indication to communicate via a beam in response to the request, and
- communicate with the network entity via the beam based on the indication.
A non-transitory computer-readable medium storing code that, when executed by one or more processors of an apparatus, cause the apparatus to perform a method, the method comprising:
- detecting a beam failure associated with a reference signal from a network entity, wherein detecting the beam failure comprises detecting a first condition that reception of the reference signal is blocked for a first duration, and wherein the reference signal is a synchronization signal block (SSB) or a channel state information (CSI) reference signal (RS);
- transmitting, to the network entity before initiating a beam failure recovery procedure, a request for a beam switch in response to the detected beam failure;
- receiving, from the network entity, an indication to communicate via a beam in response to the request;
- and
- communicating with the network entity via the beam based on the indication.
An apparatus for wireless communication, comprising:
- means for detecting a beam failure associated with a reference signal from a network entity, wherein detecting the beam failure comprises detecting a first condition that reception of the reference signal is blocked for a first duration, and wherein the reference signal is a synchronization signal block (SSB) or a channel state information (CSI) reference signal (RS);
- means for transmitting, to the network entity before initiating a beam failure recovery procedure, a request for a beam switch in response to the detected beam failure;
- means for receiving, from the network entity, an indication to communicate via a beam in response to the request;
- and
- means for communicating with the network entity via the beam based on the indication.
Dependencies are inferred from the claim text.