Techniques for wireless communication in connected discontinuous reception mode
Methods, systems, and devices for wireless communication are described. A user equipment (UE) may receive, from a base station, control signaling indicating a set of connected discontinuous reception (C-DRX) configurations. The set of C-DRX configurations may include a first C-DRX configuration and a second C-DRX configuration, where at least one C-DRX configuration in the set of C-DRX configurations is a UE-group common C-DRX configuration. The set of C-DRX configurations may correspond to a discontinuous transmission (DTX) cycle of the base station. The UE may select a C-DRX configuration from the set of C-DRX configurations based on receiving the control signaling from the base station. Accordingly, the UE may use the selected C-DRX configuration to communicate with the base station. The selected C-DRX configuration may enable the base station to operate with reduced power consumption and higher DTX efficiency, among other benefits.
1. A method for wireless communication at a user equipment (UE), comprising:
receiving, from a network entity, control signaling indicating a set of connected discontinuous reception configurations comprising a first connected discontinuous reception configuration and a second connected discontinuous reception configuration, wherein the connected discontinuous reception configurations of the set of connected discontinuous reception configurations correspond to a discontinuous transmission configuration at the network entity;
selecting a connected discontinuous reception configuration from the set of connected discontinuous reception configurations based at least in part on receiving the control signaling; and
performing the wireless communication based at least in part on the selected connected discontinuous reception configuration.
2. The method of claim 1 , further comprising:
transmitting information associated with a capability of the UE to select between different connected discontinuous reception configurations,
wherein receiving the control signaling is based at least in part on transmitting the information.
3. The method of claim 1 , further comprising:
receiving an indication of the connected discontinuous reception configuration from the set of connected discontinuous reception configurations for use by the UE,
wherein selecting the connected discontinuous reception configuration from the set of connected discontinuous reception configurations is based at least in part on receiving the indication.
4. The method of claim 3 , wherein receiving the indication comprises:
receiving downlink control information that includes the indication, wherein the downlink control information comprises a UE-group downlink control information.
5. The method of claim 4 , wherein the downlink control information comprises timing information indicating a period between receiving the downlink control information and enabling the connected discontinuous reception configuration.
6. The method of claim 3 , wherein receiving the indication comprises:
receiving a medium access control-control element that includes the indication.
7. The method of claim 6 , wherein the medium access control-control element comprises timing information indicating a period between receiving the medium access control-control element and enabling the connected discontinuous reception configuration.
8. The method of claim 3 , further comprising:
switching from a default connected discontinuous reception configuration to the selected connected discontinuous reception configuration based at least in part on receiving the indication,
wherein performing the wireless communication is based at least in part on switching from the default connected discontinuous reception configuration to the selected connected discontinuous reception configuration.
9. The method of claim 8 , wherein the default connected discontinuous reception configuration comprises a UE-specific connected discontinuous reception configuration and the selected connected discontinuous reception configuration comprises a UE-group common connected discontinuous reception configuration.
10. The method of claim 8 , wherein the default connected discontinuous reception configuration corresponds to a normal operating mode of the network entity or a power saving mode of the network entity.
11. The method of claim 8 , wherein the default connected discontinuous reception configuration is associated with a unique identifier.
12. The method of claim 1 , further comprising:
enabling a power saving mode based at least in part on the selected connected discontinuous reception configuration comprising a UE-group common connected discontinuous reception configuration,
wherein performing the wireless communication is based at least in part on enabling the power saving mode.
13. The method of claim 1 , wherein receiving the control signaling comprises:
receiving a radio resource control message indicating the set of connected discontinuous reception configurations,
wherein the set of connected discontinuous reception configurations comprises a plurality of UE-group common connected discontinuous reception configurations.
14. The method of claim 13 , wherein each UE-group common connected discontinuous reception configuration of the plurality of UE-group common connected discontinuous reception configurations corresponds to a separate power mode of the network entity.
15. The method of claim 1 , wherein:
the first connected discontinuous reception configuration comprises a UE-specific connected discontinuous reception configuration; and
the second connected discontinuous reception configuration comprises a UE-group common connected discontinuous reception configuration.
16. A method for wireless communication at a network entity, comprising:
transmitting, to a user equipment (UE), control signaling indicating a set of connected discontinuous reception configurations comprising a first connected discontinuous reception configuration and a second connected discontinuous reception configuration, wherein the connected discontinuous reception configurations of the set of connected discontinuous reception configurations correspond to a discontinuous transmission configuration at the network entity;
selecting a connected discontinuous reception configuration from the set of connected discontinuous reception configurations based at least in part on transmitting the control signaling; and
performing the wireless communication based at least in part on the selected connected discontinuous reception configuration.
17. The method of claim 16 , further comprising:
transmitting information associated with a capability of the UE to select between different connected discontinuous reception configurations,
wherein transmitting the control signaling is based at least in part on transmitting the information.
18. The method of claim 16 , further comprising:
transmitting an indication of the connected discontinuous reception configuration of the set of connected discontinuous reception configurations for use by the UE.
19. The method of claim 18 , wherein transmitting the indication comprises:
transmitting downlink control information that includes the indication, wherein the downlink control information comprises a UE-group downlink control information.
20. The method of claim 19 , wherein the downlink control information comprises timing information indicating a period between transmitting the downlink control information and enabling the connected discontinuous reception configuration.
21. The method of claim 18 , wherein transmitting the indication comprises:
transmitting a medium access control-control element that includes the indication.
22. The method of claim 21 , wherein the medium access control-control element comprises timing information indicating a period between transmitting the medium access control-control element and enabling the connected discontinuous reception configuration.
23. The method of claim 18 , further comprising:
switching from a default connected discontinuous reception configuration to the selected connected discontinuous reception configuration based at least in part on transmitting the indication,
wherein performing the wireless communication is based at least in part on switching from the default connected discontinuous reception configuration to the selected connected discontinuous reception configuration.
24. The method of claim 23 , wherein the default connected discontinuous reception configuration comprises a UE-specific connected discontinuous reception configuration and the selected connected discontinuous reception configuration comprises a UE-group common connected discontinuous reception configuration.
25. The method of claim 16 , further comprising:
enabling a power saving mode based at least in part on the selected connected discontinuous reception configuration comprising a UE-group common connected discontinuous reception configuration,
wherein performing the wireless communication is based at least in part on enabling the power saving mode.
26. The method of claim 16 , wherein transmitting the control signaling comprises:
transmitting a radio resource control message indicating the set of connected discontinuous reception configurations,
wherein the set of connected discontinuous reception configurations comprises a plurality of UE-group common connected discontinuous reception configurations.
27. The method of claim 26 , wherein each UE-group common connected discontinuous reception configuration of the plurality of UE-group common connected discontinuous reception configurations corresponds to a separate power mode of the network entity.
28. The method of claim 16 , wherein:
the first connected discontinuous reception configuration comprises a UE-specific connected discontinuous reception configuration; and
the second connected discontinuous reception configuration comprises a UE-group common connected discontinuous reception configuration.
29. An apparatus for wireless communication at a user equipment (UE), comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
receive, from a network entity, control signaling indicating a set of connected discontinuous reception configurations comprising a first connected discontinuous reception configuration and a second connected discontinuous reception configuration, wherein the connected discontinuous reception configurations of the set of connected discontinuous reception configurations correspond to a discontinuous transmission configuration at the network entity;
select a connected discontinuous reception configuration from the set of connected discontinuous reception configurations based at least in part on receiving the control signaling; and
perform the wireless communication based at least in part on the selected connected discontinuous reception configuration.
30. An apparatus for wireless communication at a network entity, comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
transmit, to a user equipment (UE), control signaling indicating a set of connected discontinuous reception configurations comprising a first connected discontinuous reception configuration and a second connected discontinuous reception configuration, wherein the connected discontinuous reception configurations of the set of connected discontinuous reception configurations correspond to a discontinuous transmission configuration at the network entity;
select a connected discontinuous reception configuration from the set of connected discontinuous reception configurations based at least in part on transmitting the control signaling; and
perform the wireless communication based at least in part on the selected connected discontinuous reception configuration.