Aborting a beam failure recovery procedure based on an expiry of a time alignment timer
A wireless device receives configuration parameters indicating a time alignment timer of a timing advance group comprising a cell. The time alignment timer is started in response to receiving a timing advance command for the timing advance group. The wireless device transmits an uplink signal for a beam failure recovery procedure for the cell based on a beam failure of the cell. The beam failure recovery procedure is aborted based on an expiry of the time alignment timer during the beam failure recovery procedure.
1. A method comprising:
receiving, by a wireless device, configuration parameters indicating a time alignment timer of a timing advance group comprising a cell;
starting the time alignment timer in response to receiving a timing advance command for the timing advance group;
transmitting an uplink signal for a beam failure recovery procedure for the cell based on a beam failure of the cell; and
stopping the transmission of the uplink signal for the beam failure recovery procedure based on an expiry of the time alignment timer during the beam failure recovery procedure.
2. The method of claim 1 , wherein the configuration parameters further indicate one or more reference signals of the cell.
3. The method of claim 2 , further comprising initiating the beam failure recovery procedure for the cell in response to detecting, based on the one or more reference signals of the cell, the beam failure of the cell.
4. The method of claim 2 , wherein the configuration parameters further indicate one or more second reference signals of the cell and one or more beam failure recovery request resources on the cell, wherein the one or more beam failure recovery request resources comprise the uplink signal.
5. The method of claim 4 , wherein the one or more second reference signals of the cell comprise one or more second channel state information reference signals.
6. The method of claim 4 , wherein the one or more second reference signals of the cell comprise one or more second synchronization signal blocks.
7. The method of claim 4 , wherein the configuration parameters further indicate an association between each of the one or more second reference signals of the cell and each of the one or more beam failure recovery request resources.
8. The method of claim 2 , wherein the one or more reference signals of the cell comprise one or more first channel state information reference signals.
9. The method of claim 2 , wherein the one or more reference signals of the cell comprise one or more first synchronization signal blocks.
10. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive configuration parameters indicating a time alignment timer of a timing advance group comprising a cell;
start the time alignment timer in response to receiving a timing advance command for the timing advance group;
transmit an uplink signal for a beam failure recovery procedure for the cell based on a beam failure of the cell; and
stop the transmission of the uplink signal for the beam failure recovery procedure based on an expiry of the time alignment timer during the beam failure recovery procedure.
11. The wireless device of claim 10 , wherein the configuration parameters further indicate one or more reference signals of the cell.
12. The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to initiate the beam failure recovery procedure for the cell in response to detection, based on the one or more reference signals of the cell, of the beam failure of the cell.
13. The wireless device of claim 11 , wherein the configuration parameters further indicate one or more second reference signals of the cell and one or more beam failure recovery request resources on the cell, wherein the one or more beam failure recovery request resources comprise the uplink signal.
14. The wireless device of claim 13 , wherein the one or more second reference signals of the cell comprise one or more second channel state information reference signals.
15. The wireless device of claim 13 , wherein the one or more second reference signals of the cell comprise one or more second synchronization signal blocks.
16. The wireless device of claim 13 , wherein the configuration parameters further indicate an association between each of the one or more second reference signals of the cell and each of the one or more beam failure recovery request resources.
17. The wireless device of claim 11 , wherein the one or more reference signals of the cell comprise one or more first channel state information reference signals.
18. A system comprising:
a base station comprising:
one or more first processors; and
first memory storing first instructions that, when executed by the one or more first processors, cause the base station to transmit configuration parameters indicating a time alignment timer of a timing advance group comprising a cell; and
a wireless device comprising:
one or more second processors; and
second memory storing instructions that, when executed by the one or more second processors, cause the wireless device to:
receive the configuration parameters;
start the time alignment timer in response to receiving a timing advance command for the timing advance group;
transmit an uplink signal for a beam failure recovery procedure for the cell based on a beam failure of the cell; and
stop the transmission of the uplink signal for the beam failure recovery procedure based on an expiry of the time alignment timer during the beam failure recovery procedure.