Activation of linked bandwidth parts
A wireless device may receive one or more configuration parameters of a first cell and a second cell. The one or more configuration parameters may indicate a first bandwidth part (BWP), of the first cell, and a second BWP, of the second cell, linked to the first BWP. The wireless device may activate the first BWP of the first cell as an active BWP of the first cell. Based on the first BWP being linked to the second BWP, the wireless device may activate the second BWP as an active BWP of the second cell.
1. 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 configuration parameters of a first cell and a second cell, wherein the one or more configuration parameters indicate:
a first bandwidth part (BWP) of the first cell; and
a second BWP, of the second cell, linked to the first BWP; and
activate the first BWP of the first cell as an active BWP of the first cell; and
based on the first BWP being linked to the second BWP, activate the second BWP as an active BWP of the second cell.
2. The wireless device of claim 1 , wherein the first BWP is an uplink BWP of the first cell.
3. The wireless device of claim 2 , wherein the second BWP is a downlink BWP of the second cell.
4. The wireless device of claim 1 , wherein the one or more configuration parameters are received via one or more radio resource control (RRC) messages.
5. The wireless device of claim 1 , wherein the one or more configuration parameters further indicate:
a first plurality of BWPs for the first cell, wherein the first plurality of BWPs comprise the first BWP; and
a second plurality of BWPs for the second cell, wherein the second plurality of BWPs comprise the second BWP.
6. The wireless device of claim 5 , wherein the second BWP is not linked to each of the first plurality of BWPs for the first cell.
7. The wireless device of claim 1 , wherein the second BWP is linked to the first BWP based on the one or more configuration parameters comprising one or more beam failure recovery configuration parameters of the first BWP for one or more beam failure recoveries of the second BWP of the second cell.
8. The wireless device of claim 1 , wherein activating the first BWP is in response to an expiry of a BWP inactivity timer.
9. A base station comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the base station to:
transmit, to a wireless device, one or more configuration parameters of a first cell and a second cell, wherein the one or more configuration parameters indicate:
a first bandwidth part (BWP) of the first cell; and
a second BWP, of the second cell, linked to the first BWP; and
activate the first BWP of the first cell as an active BWP of the first cell; and
based on the first BWP being linked to the second BWP, activate the second BWP as an active BWP of the second cell.
10. The base station of claim 9 , wherein the first BWP is an uplink BWP of the first cell.
11. The base station of claim 10 , wherein the second BWP is a downlink BWP of the second cell.
12. The base station of claim 9 , wherein the one or more configuration parameters are received via one or more radio resource control (RRC) messages.
13. The base station of claim 9 , wherein the one or more configuration parameters further indicate:
a first plurality of BWPs for the first cell, wherein the first plurality of BWPs comprise the first BWP; and
a second plurality of BWPs for the second cell, wherein the second plurality of BWPs comprise the second BWP.
14. The base station of claim 13 , wherein the second BWP is not linked to each of the first plurality of BWPs for the first cell.
15. The base station of claim 9 , wherein the second BWP is linked to the first BWP based on the one or more configuration parameters comprising one or more beam failure recovery configuration parameters of the first BWP for one or more beam failure recoveries of the second BWP of the second cell.
16. The base station of claim 9 , wherein activating the first BWP is in response to an expiry of a BWP inactivity timer.
17. A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:
receive one or more configuration parameters of a first cell and a second cell, wherein the one or more configuration parameters indicate:
a first bandwidth part (BWP) of the first cell; and
a second BWP, of the second cell, linked to the first BWP; and
activate the first BWP of the first cell as an active BWP of the first cell; and
based on the first BWP being linked to the second BWP, activate the second BWP as an active BWP of the second cell.
18. The non-transitory computer-readable medium of claim 17 , wherein:
the first BWP is an uplink BWP of the first cell; and
the second BWP is a downlink BWP of the second cell.
19. The non-transitory computer-readable medium of claim 17 , wherein the one or more configuration parameters further indicate:
a first plurality of BWPs for the first cell, wherein the first plurality of BWPs comprise the first BWP; and
a second plurality of BWPs for the second cell, wherein the second plurality of BWPs comprise the second BWP; and
the second BWP is not linked to each of the first plurality of BWPs for the first cell.
20. The non-transitory computer-readable medium of claim 17 , wherein the second BWP is linked to the first BWP based on the one or more configuration parameters comprising one or more beam failure recovery configuration parameters of the first BWP for one or more beam failure recoveries of the second BWP of the second cell.