Beam failure recovery procedure for bandwidth parts
A wireless device receives one or more messages comprising one or more configuration parameters of a plurality of cells. The plurality of cells comprise: a first cell comprising a first bandwidth part (BWP); and a second cell comprising a second BWP and a third BWP. The first BWP and the second BWP are bundled. A beam failure recovery (BFR) procedure for the third BWP is initiated. A switch is made to the first BWP as an active BWP of the first cell during the BFR procedure. Based on the switching: the BFR procedure is aborted; and a switch is made to the second BWP as an active BWP of the second cell.
1. A method comprising:
receiving, by a wireless device, one or more messages comprising one or more configuration parameters of a plurality of cells comprising:
a first cell comprising a first bandwidth part (BWP); and
a second cell comprising a second BWP and a third BWP, wherein the first BWP and the second BWP are bundled;
initiating a beam failure recovery (BFR) procedure for the third BWP;
switching to the first BWP as an active BWP of the first cell during the BFR procedure; and
based on the switching:
aborting the BFR procedure; and
switching to the second BWP as an active BWP of the second cell.
2. The method of claim 1 , wherein the one or more configuration parameters indicate the first BWP and the second BWP being bundled.
3. The method of claim 1 , wherein the switching to the second BWP is further based on the first BWP and the second BWP being bundled.
4. The method of claim 1 , wherein the first BWP and the second BWP being bundled comprises activating the second BWP as an active BWP of the second cell based on activating the first BWP as an active BWP of the first cell.
5. The method of claim 1 , wherein the initiating the BFR procedure is based on detecting a beam failure of the third BWP of the second cell.
6. The method of claim 5 , wherein the detecting the beam failure comprises a beam failure instance counter reaching a value.
7. The method of claim 6 , further comprising starting a BFR timer based on the initiating the BFR procedure.
8. The method of claim 7 , further comprising resetting, based on the aborting the BFR procedure, at least one of the beam failure instance counter and the BFR timer.
9. The method of claim 1 , further comprising:
switching from the first BWP to a fourth BWP as an active BWP of the first cell; and
keeping the second BWP as the active BWP of the second cell based on the fourth BWP not being bundled with any BWP of the second cell.
10. The method of claim 1 , wherein the switching to the first BWP is based on an expiry of a BWP inactivity timer of the first cell.
11. 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 one or more messages comprising one or more configuration parameters of a plurality of cells comprising:
a first cell comprising a first bandwidth part (BWP); and
a second cell comprising a second BWP and a third BWP, wherein the first BWP and the second BWP are bundled;
initiate a beam failure recovery (BFR) procedure for the third BWP;
switch to the first BWP as an active BWP of the first cell during the BFR procedure; and
based on the switching:
abort the BFR procedure; and
switch to the second BWP as an active BWP of the second cell.
12. The wireless device of claim 11 , wherein the one or more configuration parameters indicate the first BWP and the second BWP being bundled.
13. The wireless device of claim 11 , wherein the switching to the second BWP is further based on the first BWP and the second BWP being bundled.
14. The wireless device of claim 11 , wherein the first BWP and the second BWP being bundled comprises activation of the second BWP as an active BWP of the second cell based on activation of the first BWP as an active BWP of the first cell.
15. The wireless device of claim 11 , wherein the initiation of the BFR procedure is based on detection of a beam failure of the third BWP of the second cell.
16. The wireless device of claim 15 , wherein the detection of the beam failure comprises a beam failure instance counter reaching a value.
17. The wireless device of claim 16 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to start a BFR timer based on the initiation of the BFR procedure.
18. The wireless device of claim 17 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to reset, based on the abortion the BFR procedure, at least one of the beam failure instance counter and the BFR timer.
19. The wireless device of claim 11 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to:
switch from the first BWP to a fourth BWP as an active BWP of the first cell; and
keep the second BWP as the active BWP of the second cell based on the fourth BWP not being bundled with any BWP of the second cell.
20. A system comprising:
a base station; and
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, from the base station, one or more messages comprising one or more configuration parameters of a plurality of cells comprising:
a first cell comprising a first bandwidth part (BWP); and
a second cell comprising a second BWP and a third BWP, wherein the first BWP and the second BWP are bundled;
initiate a beam failure recovery (BFR) procedure for the third BWP;
switch to the first BWP as an active BWP of the first cell during the BFR procedure; and
based on the switching:
abort the BFR procedure; and
switch to the second BWP as an active BWP of the second cell.