Reduced monitoring state
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment or a base station may determine that a condition for entering a reduced monitoring state is satisfied, wherein the reduced monitoring state uses at least one of: a diminished radio frequency chain configuration, a diminished channel monitoring configuration, a restriction on receiving or transmitting a shared channel or a control channel, or a combination thereof; and communicate using the reduced monitoring state. Numerous other aspects are provided.
1. A method of wireless communication performed by a user equipment (UE), comprising:
determining that a condition for entering a reduced monitoring state is satisfied, wherein the reduced monitoring state uses at least one of:
a restriction on receiving a control channel,
a restriction on transmitting a shared channel, or
a combination thereof;
communicating using the reduced monitoring state; and
leaving the reduced monitoring state based at least in part on using a timing offset relative to a baseline configuration.
2. The method of claim 1 , wherein the reduced monitoring state is associated with a particular bandwidth part, and wherein the condition is satisfied when the UE uses the particular bandwidth part.
3. The method of claim 2 , wherein the UE initializes on the particular bandwidth part.
4. The method of claim 2 , further comprising:
switching to the particular bandwidth part.
5. The method of claim 1 , wherein leaving the reduced monitoring state is further based at least in part on a bandwidth part switch signal.
6. The method of claim 5 , further comprising:
performing a bandwidth part switch with a reduced bandwidth part switching delay.
7. The method of claim 1 , wherein the condition is triggered by downlink control information indicating that the UE is to enter the reduced monitoring state.
8. The method of claim 7 , wherein the downlink control information comprises group downlink control information.
9. The method of claim 7 , wherein the downlink control information schedules a transmission, and wherein the transmission is performed after the timing offset.
10. The method of claim 9 , wherein the timing offset is predefined or radio resource control configured.
11. The method of claim 1 , further comprising:
providing information indicating a minimum supported timing offset, wherein the information indicating the minimum supported timing offset is provided as a UE capability or using a UE-assistance framework.
12. The method of claim 1 , wherein the reduced monitoring state further uses a diminished channel monitoring configuration that configures the UE to perform only periodic channel state information measurement and reporting.
13. The method of claim 1 , wherein at least one of the restriction on receiving the control channel or the restriction on transmitting the shared channel indicates that the shared channel is to be cross-slot scheduled.
14. The method of claim 1 , wherein the reduced monitoring state further uses a diminished radio frequency (RF) chain configuration that uses a proper subset of RF chains of the UE or a diminished transmit power to transmit a sounding reference signal.
15. The method of claim 1 , wherein the UE is to transmit a sounding reference signal using all radio frequency (RF) chains in the reduced monitoring state.
16. The method of claim 1 , wherein the UE is configured not to transmit a sounding reference signal in the reduced monitoring state.
17. A method of wireless communication performed by a network node, comprising:
determining that a condition for a reduced monitoring state of a user equipment (UE) is satisfied, wherein the reduced monitoring state uses at least one of:
a restriction on receiving a control channel for the UE,
a restriction on transmitting a shared channel for the UE, or
a combination thereof; and
communicating with the UE based at least in part on the UE leaving the reduced monitoring state and using a timing offset relative to a baseline configuration.
18. The method of claim 17 , wherein the reduced monitoring state is associated with a particular bandwidth part, and wherein the condition is satisfied when the UE uses the particular bandwidth part.
19. The method of claim 18 , further comprising:
transmitting a message to cause the UE to switch to the particular bandwidth part.
20. The method of claim 18 , further comprising:
transmitting a bandwidth part switch signal to cause the UE to leave the reduced monitoring state.
21. The method of claim 17 , further comprising:
transmitting downlink control information indicating that the UE is to enter or leave the reduced monitoring state, wherein the downlink control information triggers the condition.
22. The method of claim 17 , wherein at least one of the restriction on receiving the control channel or the restriction on transmitting the shared channel indicates that the shared channel is to be cross-slot scheduled.
23. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors configured to:
determine that a condition for entering a reduced monitoring state is satisfied, wherein the reduced monitoring state uses at least one of:
a restriction on receiving a control channel,
a restriction on transmitting a shared channel, or
a combination thereof;
communicate using the reduced monitoring state; and
leave the reduced monitoring state based at least in part on using a timing offset relative to a baseline configuration.
24. The UE of claim 23 , wherein the reduced monitoring state is associated with a particular bandwidth part, and wherein the condition is satisfied when the UE uses the particular bandwidth part.
25. The UE of claim 24 , wherein the UE initializes on the particular bandwidth part.
26. The UE of claim 24 , wherein the one or more processors are further configured to:
switch to the particular bandwidth part.
27. The UE of claim 23 , wherein the condition is triggered by downlink control information indicating that the UE is to enter the reduced monitoring state.
28. The UE of claim 23 , wherein the reduced monitoring state further uses a diminished channel monitoring configuration that configures the UE to perform only periodic channel state information measurement and reporting.
29. A network node for wireless communication, comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors configured to:
determine that a condition for a reduced monitoring state of a user equipment (UE) is satisfied, wherein the reduced monitoring state uses at least one of:
a restriction on receiving a control channel,
a restriction on transmitting a shared channel, or
a combination thereof; and
communicate with the UE based at least in part on the UE leaving the reduced monitoring state and using a timing offset relative to a baseline configuration.
30. The network node of claim 29 , wherein the reduced monitoring state is associated with a particular bandwidth part, and wherein the condition is satisfied when the UE uses the particular bandwidth part.