Dynamic control channel management

1. A method for wireless communication at a user equipment (UE), comprising:

receiving a first signal from a network device configuring a set of available control channel monitoring sets to be used for control information and a first subset of the set of available control channel monitoring sets;

receiving, over the first subset of the set of available control channel monitoring sets, a second signal from the network device comprising an indication activating a second subset of the set of available control channel monitoring sets different from the first subset, the second subset comprising at least one additional control channel monitoring set from the set of available control channel monitoring sets configured for the UE by the first signal;

initiating, based at least in part on the second signal, a timer for the at least one additional control channel monitoring set;

receiving the control information over the second subset at least partially in response to receiving the second signal, wherein a third subset of the set of available control channel monitoring sets configured for the UE by the first signal, different from the first subset and the second subset, is inactive during reception of the control information; and

stopping the timer after a predetermined number of slots in which no control information is received in the at least one additional control channel monitoring set, wherein the at least one additional control channel monitoring set is deactivated based at least in part on stopping the timer.

2. The method of claim 1 , further comprising:

transmitting, to the network device, a request to activate the second subset of the set of available control channel monitoring sets, wherein activation of the second subset is based at least in part on transmitting the request via a component carrier associated with the at least one additional control channel monitoring set.

3. The method of claim 2 , further comprising:

transmitting a predetermined number of negative acknowledgement (NACK) signals to the network device, wherein the request comprises the predetermined number of NACK signals.

4. The method of claim 2 , wherein the request is transmitted in at least one of a medium access control (MAC) control element (CE), or a physical uplink control channel (PUCCH), or an uplink control information (UCI), or a combination thereof.

5. The method of claim 1 , further comprising:

stopping the timer after a predetermined time period.

6. The method of claim 1 , further comprising:

restarting the timer based at least in part on receiving the control information over the at least one additional control channel monitoring set.

7. The method of claim 1 , wherein the second signal activates a plurality of additional control channel monitoring sets, and a separate timer is initiated for each of the plurality of additional control channel monitoring sets.

8. The method of claim 1 , further comprising:

receiving an activation signal activating at least one of a second component carrier for the UE, or activating a secondary cell to use for communications with the UE, or a combination thereof, wherein the second signal comprises the activation signal.

9. The method of claim 1 , further comprising:

receiving a third signal indicating that a traffic condition satisfies a threshold, wherein the second signal comprises the third signal.

10. The method of claim 1 , further comprising:

receiving a third signal indicating that the at least one additional control channel monitoring set is deactivated for the UE, wherein a deactivation indication is received over a downlink control information (DCI) in the first subset of the set of available control channel monitoring sets configured for the UE; and

refraining from monitoring the at least one additional control channel monitoring set based at least in part on the third signal.

11. The method of claim 1 , further comprising:

receiving a third signal indicating that a second component carrier has been deactivated for the UE.

12. The method of claim 1 , wherein the second signal is received over a downlink control information (DCI) indicating an index for the at least one additional control channel monitoring set.

13. The method of claim 1 , wherein the at least one additional control channel monitoring set is associated with a primary component carrier, or a secondary component carrier, or a combination thereof.

14. The method of claim 1 , further comprising:

monitoring, in response to receiving the second signal, the second subset, wherein the control information is received in response to the monitoring.

15. The method of claim 1 , wherein the control information received in the at least one additional control channel monitoring set comprises a downlink grant for data in a corresponding data or shared data resource.

16. The method of claim 1 , further comprising:

transmitting a positive acknowledgement signal to the network device based at least in part on the second signal.

17. The method of claim 5 , further comprising:

restarting the timer based at least in part on receiving the control information over the at least one additional control channel monitoring set.

18. The method of claim 2 , further comprising:

determining that a traffic condition associated with communications with the network device has satisfied a threshold, wherein the traffic condition comprises at least one of a predetermined amount of data for communicating with the network device, or a traffic load condition, or an available transmit power condition, or a UE thermal condition, or a combination thereof, and wherein the request is transmitted in response to the traffic condition satisfying the threshold.

19. A method for wireless communication at a network device, comprising:

transmitting a first signal to a user equipment (UE) configuring a set of available control channel monitoring sets to be used for control information and a first subset of the set of available control channel monitoring sets;

transmitting, over the first subset of the set of available control channel monitoring sets, a second signal from the network device comprising an indication activating a second subset of the set of available control channel monitoring sets different from the first subset, the second subset comprising at least one additional control channel monitoring set from the set of available control channel monitoring sets configured for the UE by the first signal;

initiating, based at least in part on the second signal, a timer for the at least one additional control channel monitoring set;

transmitting the control information over the second subset at least partially in response to transmitting the second signal, wherein a third subset of the set of available control channel monitoring sets configured for the UE by the first signal, different from the first subset and the second subset, is inactive during reception of the control information; and

stopping the timer after a predetermined number of slots in which no control information is received in the at least one additional control channel monitoring set, wherein the at least one additional control channel monitoring set is deactivated based at least in part on stopping the timer.

20. The method of claim 19 , further comprising:

receiving, from the UE, a request to activate the second subset of the set of available control channel monitoring sets, wherein activation of the second subset is based at least in part on transmitting the request via a component carrier associated with the at least one additional control channel monitoring set.

21. The method of claim 20 , further comprising:

receiving a predetermined number of negative acknowledgement (NACK) signals from the UE, wherein the request comprises the predetermined number of NACK signals.

22. The method of claim 20 , further comprising:

determining that a traffic condition associated with communications with the UE has satisfied a threshold, wherein the traffic condition comprises at least one of a predetermined amount of data for communicating with the network device, or a traffic load condition, or an available transmit power condition, or a UE thermal condition, or a combination thereof, and wherein the request is received in response to the traffic condition satisfying the threshold.

23. An apparatus for wireless communication at a user equipment (UE), comprising:

one or more memories storing processor-executable code; and

one or more processors coupled with the one or more memories and operable to execute the code to cause the apparatus to:

receive a first signal from a network device configuring a set of available control channel monitoring sets to be used for control information and a first subset of the set of available control channel monitoring sets;

receive, over the first subset of the set of available control channel monitoring sets, a second signal from the network device comprising an indication activating a second subset of the set of available control channel monitoring sets different from the first subset, the second subset comprising at least one additional control channel monitoring set from the set of available control channel monitoring sets configured for the UE by the first signal;

initiate, based at least in part on the second signal, a timer for the at least one additional control channel monitoring set;

receive the control information over the second subset at least partially in response to receiving the second signal, wherein a third subset of the set of available control channel monitoring sets configured for the UE by the first signal, different from the first subset and the second subset, is inactive during reception of the control information; and

stop the timer after a predetermined number of slots in which no control information is received in the at least one additional control channel monitoring set, wherein the at least one additional control channel monitoring set is deactivated based at least in part on stopping the timer.

24. The apparatus of claim 23 , wherein the one or more processors are further operable to execute the code to cause the apparatus to:

restart the timer based at least in part on reception of the control information over the at least one additional control channel monitoring set.

25. The apparatus of claim 23 , wherein the second signal is received over a downlink control information (DCI) indicating an index for the at least one additional control channel monitoring set.

26. An apparatus for wireless communication at a network device, comprising:

one or more memories storing processor-executable code; and

one or more processors coupled with the one or more memories and operable to execute the code to cause the apparatus to:

transmit a first signal to a user equipment (UE) configuring a set of available control channel monitoring sets to be used for control information and a first subset of the set of available control channel monitoring sets;

transmit, over the first subset of the set of available control channel monitoring sets, a second signal from the network device comprising an indication activating a second subset of the set of available control channel monitoring sets different from the first subset, the second subset comprising at least one additional control channel monitoring set from the set of available control channel monitoring sets configured for the UE by the first signal;

initiate, based at least in part on the second signal, a timer for the at least one additional control channel monitoring set;

transmit the control information over the second subset at least partially in response to transmitting the second signal, wherein a third subset of the set of available control channel monitoring sets configured for the UE by the first signal, different from the first subset and the second subset, is inactive during reception of the control information; and

stop the timer after a predetermined number of slots in which no control information is received in the at least one additional control channel monitoring set, wherein the at least one additional control channel monitoring set is deactivated based at least in part on stopping the timer.