Restarting primary cell bandwidth part inactivity timer based on expiration of secondary cell deactivation timer
A wireless device may receive one or more messages comprising configuration parameters for a primary cell and a secondary cell. The configuration parameters may indicate a deactivation timer for the secondary cell and a bandwidth part (BWP) inactivity timer for the primary cell. The wireless device may start the deactivation timer in response to activating the secondary cell. The wireless device may start the BWP inactivity timer in response to switching an active BWP of the primary cell. The wireless device may stop the BWP inactivity timer of the primary cell based on initiating a random-access procedure for the secondary cell. In response to the deactivation timer of the secondary cell expiring during the random-access procedure, the wireless device may restart the BWP inactivity timer of the primary cell.
1. A method comprising:
receiving, by a wireless device, one or more messages comprising configuration parameters for a primary cell and a secondary cell, wherein the configuration parameters indicate:
a deactivation timer for the secondary cell; and
a bandwidth part (BWP) inactivity timer for the primary cell;
starting the deactivation timer in response to activating the secondary cell;
starting the BWP inactivity timer in response to switching an active BWP of the primary cell;
stopping the BWP inactivity timer of the primary cell based on initiating a random-access procedure for the secondary cell; and
in response to the deactivation timer of the secondary cell expiring during the random-access procedure, restarting the BWP inactivity timer of the primary cell.
2. The method of claim 1 , wherein the random-access procedure is for a beam failure recovery of the secondary cell.
3. The method of claim 1 , wherein the activating the secondary cell comprises receiving a medium access control control element (MAC CE) indicating activation of the secondary cell.
4. The method of claim 1 , further comprising initiating the random access procedure for the secondary cell.
5. The method of claim 1 , further comprising determining that the deactivation timer of the secondary cell expires during the random access procedure.
6. The method of claim 1 , wherein the switching the active BWP comprises switching to a first BWP of the primary cell as the active BWP.
7. The method of claim 6 , wherein the first BWP is a non-default BWP.
8. The method of claim 1 , wherein the switching the active BWP is further in response to receiving a downlink control information (DCI) indicating a first BWP to switch to as the active BWP.
9. The method of claim 1 , wherein the deactivation timer is started with a first timer value.
10. The method of claim 1 , wherein the BWP inactivity timer is started with a second timer value.
11. A wireless device comprising:
one or more processors;
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive one or more messages comprising configuration parameters for a primary cell and a secondary cell, wherein the configuration parameters indicate:
a deactivation timer for the secondary cell; and
a bandwidth part (BWP) inactivity timer for the primary cell;
start the deactivation timer in response to activating the secondary cell;
start the BWP inactivity timer in response to switching an active BWP of the primary cell;
stop the BWP inactivity timer of the primary cell based on initiating a random-access procedure for the secondary cell; and
in response to the deactivation timer of the secondary cell expiring during the random-access procedure, restart the BWP inactivity timer of the primary cell.
12. The wireless device of claim 11 , wherein the random-access procedure is for a beam failure recovery of the secondary cell.
13. The wireless device of claim 11 , wherein the activating the secondary cell comprises receiving a medium access control control element (MAC CE) indicating activation of the secondary cell.
14. The wireless device of claim 11 , wherein the instructions further cause the wireless device to initiate the random access procedure for the secondary cell.
15. The wireless device of claim 11 , wherein the instructions further cause the wireless device to determine that the deactivation timer of the secondary cell expires during the random access procedure.
16. The wireless device of claim 11 , wherein the switching the active BWP comprises switching to a first BWP of the primary cell as the active BWP.
17. The wireless device of claim 16 , wherein the first BWP is a non-default BWP.
18. The wireless device of claim 11 , wherein the switching the active BWP is further in response to receiving a downlink control information (DCI) indicating a first BWP to switch to as the active BWP.
19. The wireless device of claim 11 , wherein:
the deactivation timer is started with a first timer value; and
the BWP inactivity timer is started with a second timer value.
20. A system comprising:
a base station comprising one or more first processors and memory storing instructions that, when executed by the one or more first processors, cause the base station to:
transmit one or more messages comprising configuration parameters for a primary cell and a secondary cell, wherein the configuration parameters indicate:
a deactivation timer for the secondary cell; and
a bandwidth part (BWP) inactivity timer for the primary cell;
a wireless device comprising one or more second processors and memory storing instructions that, when executed by the one or more second processors, cause the wireless device to:
receive, from the base station, the one or more messages comprising the configuration parameters for the primary cell and the secondary cell;
start the deactivation timer in response to activating the secondary cell;
start the BWP inactivity timer in response to switching an active BWP of the primary cell;
stop the BWP inactivity timer of the primary cell based on initiating a random-access procedure for the secondary cell; and
in response to the deactivation timer of the secondary cell expiring during the random-access procedure, restart the BWP inactivity timer of the primary cell.