Dynamic tune-away for neighbor cell measurements
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication that a tune-away period is available. The UE may perform one or more neighbor cell measurements during the tune-away period based at least in part on the indication. Numerous other aspects are provided.
1. A user equipment (UE) for wireless communication, comprising:
one or more memories; and
one or more processors coupled to the one or more memories, the one or more memories comprising instructions executable by the one or more processors to cause the UE to:
transmit, to a network entity, a request for a tune-away period to perform one or more neighbor cell measurements, wherein the request is included in a medium access control (MAC) control element (CE);
receive an indication responsive to the request that the tune-away period is available, the indication indicating that the tune-away period is to begin when at least one of a scheduled uplink activity or a scheduled downlink activity is complete; and
perform the one or more neighbor cell measurements to detect one or more neighbor cells based at least in part on one or more synchronization signals, wherein the one or more neighbor cell measurements are performed during the tune-away period based at least in part on the indication.
2. The UE of claim 1 , wherein the instructions executable by the one or more processors to cause the UE to perform the one or more neighbor cell measurements during the tune-away period are executable by the one or more processors to cause the UE to:
perform the one or more neighbor cell measurements in a radio resource control connected mode during the tune-away period.
3. The UE of claim 1 , wherein the instructions executable by the one or more processors to cause the UE to perform the one or more neighbor cell measurements during the tune-away period are executable by the one or more processors to further cause the UE to:
tune away from a first carrier to a second carrier; and
perform the one or more neighbor cell measurements on the second carrier.
4. The UE of claim 1 , wherein the instructions are executable by the one or processors to further cause the UE to:
transmit, to the network entity, a UE capability message that indicates a capability of the UE relating to neighbor cell measurements in a radio resource control connected mode.
5. The UE of claim 4 , wherein the UE capability message indicates that the UE requires the tune-away period to perform the neighbor cell measurements in the radio resource control connected mode, and wherein the UE capability message indicates a duration associated with the tune-away period.
6. The UE of claim 1 , wherein the request for the tune-away period is included in a protocol data unit.
7. The UE of claim 1 , wherein the request for the tune-away period includes at least one of a requested duration of the tune-away period or a type of neighbor cell measurement associated with the tune-away period.
8. The UE of claim 1 , wherein the indication is included in a downlink control channel communication or a MAC protocol data unit.
9. The UE of claim 1 , wherein the indication is an implicit indication provided by the network entity not scheduling an uplink communication or a downlink communication in a physical downlink control channel period.
10. A network entity for wireless communication, comprising:
one or more memories; and
one or more processors coupled to the one or more memories, the one or more memories comprising instructions executable by the one or more processors to cause the network entity to:
receive, from a user equipment (UE), a request for a tune-away period to perform one or more neighbor cell measurements, wherein the one or more neighbor cell measurements are performed to detect one or more neighbor cells based at least in part on one or more synchronization signals, and wherein the request is included in a medium access control (MAC) control element (CE);
transmit an indication responsive to the request that the tune-away period is available, the indication indicating that the tune-away period is to begin when at least one of a scheduled uplink activity or a scheduled downlink activity is complete; and
avoid scheduling downlink and uplink activity for the UE during the tune-away period to begin when the at least one of the scheduled uplink activity or the scheduled downlink activity is complete.
11. The network entity of claim 10 , wherein the instructions are executable by the one or more processors to further cause the network entity to:
receive, from the UE, a UE capability message that indicates a capability of the UE relating to neighbor cell measurements in a radio resource control connected mode.
12. The network entity of claim 10 , wherein the request for the tune-away period is included in a protocol data unit.
13. The network entity of claim 10 , wherein the request for the tune-away period includes at least one of a requested duration of the tune-away period or a type of neighbor cell measurement associated with the tune-away period.
14. The network entity of claim 10 , wherein the indication is included in at least one of a downlink control channel communication or a MAC protocol data unit.
15. A method of wireless communication performed by a user equipment (UE), comprising:
transmitting, to a network entity, a request for a tune-away period to perform one or more neighbor cell measurements, wherein the request is included in a medium access control (MAC) control element (CE);
receiving an indication responsive to the request that the tune-away period is available, the indication indicating that the tune-away period is to begin when at least one of a scheduled uplink activity or a scheduled downlink activity is complete; and
performing the one or more neighbor cell measurements to detect one or more neighbor cells based at least in part on one or more synchronization signals, wherein the one or more neighbor cell measurements are performed during the tune-away period based at least in part on the indication.
16. The method of claim 15 , wherein the performing the one or more neighbor cell measurements during the tune-away period comprises:
performing the one or more neighbor cell measurements in a radio resource control connected mode during the tune-away period.
17. The method of claim 15 , wherein the performing the one or more neighbor cell measurements during the tune-away period comprises:
tuning away from a first carrier to a second carrier; and
performing the one or more neighbor cell measurements on the second carrier.
18. The method of claim 15 , further comprising:
prior to the receiving the indication that the tune-away period is available, transmitting, to the network entity, a UE capability message that indicates a capability of the UE relating to neighbor cell measurements in a radio resource control connected mode.
19. The method of claim 18 , wherein the UE capability message indicates that the UE requires the tune-away period to perform the neighbor cell measurements in the radio resource control connected mode, and wherein the UE capability message indicates a duration associated with the tune-away period.
20. The method of claim 15 , wherein the request for the tune-away period is included in a protocol data unit.
21. The method of claim 15 , wherein the request for the tune-away period includes at least one of a requested duration of the tune-away period or a type of neighbor cell measurement associated with the tune-away period.
22. The method of claim 15 , wherein the indication is included in a downlink control channel communication or a MAC protocol data unit.
23. The method of claim 15 , wherein the indication is an implicit indication provided by the network entity not scheduling an uplink communication or a downlink communication in a physical downlink control channel period.
24. A method of wireless communication performed by a network entity, comprising:
receiving, from a user equipment (UE), a request for a tune-away period to perform one or more neighbor cell measurements, wherein the one or more neighbor cell measurements are performed to detect one or more neighbor cells based at least in part on one or more synchronization signals, and wherein the request is included in a medium access control (MAC) control element (CE);
transmitting an indication responsive to the request that the tune-away period is available, the indication indicating that the tune-away period is to begin when at least one of a scheduled uplink activity or a scheduled downlink activity is complete; and
avoiding scheduling downlink and uplink activity for the UE during the tune-away period to begin when the at least one of the scheduled uplink activity or the scheduled downlink activity is complete.
25. The method of claim 24 , further comprising:
receiving, from the UE, a UE capability message that indicates a capability of the UE relating to neighbor cell measurements in a radio resource control connected mode.
26. The method of claim 24 , wherein the request for the tune-away period includes at least one of a requested duration of the tune-away period or a type of neighbor cell measurement associated with the tune-away period.
27. The UE of claim 1 , wherein the request indicates that the tune-away period is for a cell detection measurement to detect the one or more neighbor cells.
28. The network entity of claim 10 , wherein the indication is an implicit indication provided by the network entity not scheduling an uplink communication or a downlink communication in a physical downlink control channel period.
29. The method of claim 15 , wherein the request indicates that the tune-away period is for a cell detection measurement to detect the one or more neighbor cells.
30. The method of claim 24 , wherein the indication is an implicit indication provided by the network entity not scheduling an uplink communication or a downlink communication in a physical downlink control channel period.