Techniques for prioritization associated with a cell group change
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may connect to a set of source cell groups (CGs). The UE may receive a target cell group setup information, the target cell group setup information being associated with a set of target CGs. The UE may connect to the set of target CGs based at least in part on the target cell group setup information during a handover from the set of source CGs to the set of target CGs. The UE may disconnect from the set of source CGs after connecting to the set of target CGs. Numerous other aspects are provided.
1. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors operatively coupled to the memory, the memory and the one or more processors configured to:
transmit an indication of a UE capability associated with the UE, wherein the UE capability enables the UE to be handed over from multiple source secondary cell groups (SCGs) to multiple target SCGs;
connect to the multiple source SCGs;
receive target cell group setup information, wherein the target cell group setup information is associated with the multiple target SCGs;
connect to the multiple target SCGs based at least in part on the target cell group setup information during a handover from the multiple source SCGs to the multiple target SCGs; and
disconnect from the multiple source SCGs after connecting to the multiple target SCGs.
2. The UE of claim 1 , wherein the target cell group setup information is associated with multiple source cell groups (CGs) and multiple target CGs that include the multiple source SCGs and the multiple target SCGs, respectively.
3. The UE of claim 2 , wherein the multiple source CGs and the multiple target CGs include a set of source master CGs and a set of target master CGs, respectively.
4. The UE of claim 1 , wherein the target cell group setup information includes at least one of:
a target cell group identifier,
a primary cell identifier,
a set of secondary cell identifiers, or
a configuration per cell.
5. The UE of claim 1 , wherein the UE maintains a connection with the multiple source SCGs and a connection with the multiple target SCGs from a time of the connecting to the multiple target SCGs until a time of the disconnecting from the multiple source SCGs.
6. The UE of claim 1 , wherein the target cell group setup information is received in a target cell group setup information element included in a radio resource control (RRC) reconfiguration message.
7. The UE of claim 1 , wherein a number of target SCGs in the multiple target SCGs is based at least in part on the UE capability of the UE.
8. The UE of claim 1 , wherein the disconnect from the multiple source SCGs is triggered based at least in part on a CG switching indication received in a radio resource control (RRC) reconfiguration message.
9. The UE of claim 8 , wherein the CG switching indication includes a cell group identifier associated with the multiple target SCGs.
10. The UE of claim 8 , wherein the RRC reconfiguration message further includes an indication to release the multiple source SCGs.
11. A method of wireless communication performed by a user equipment (UE), comprising:
transmitting an indication of a UE capability associated with the UE, wherein the UE capability enables the UE to be handed over from multiple source secondary cell groups (SCGs) to multiple target SCGs;
connecting to the multiple source SCGs;
receiving target cell group setup information, wherein the target cell group setup information is associated with the multiple target SCGs;
connecting to the multiple target SCGs based at least in part on the target cell group setup information during a handover from the multiple source SCGs to the multiple target SCGs; and
disconnecting from the multiple source SCGs after connecting to the multiple target SCGs.
12. The method of claim 11 , wherein the target cell group setup information is associated with multiple source cell groups (CGs) and multiple target CGs that include the multiple SCGs and the multiple target SCGs, respectively.
13. The method of claim 12 , wherein the multiple source CGs and the multiple target CGs include a set of source master CGs and a set of target master CGs, respectively.
14. The method of claim 11 , wherein the target cell group setup information includes at least one of:
a target cell group identifier,
a primary cell identifier,
a set of secondary cell identifiers, or
a configuration per cell.
15. The method of claim 11 , wherein the UE maintains a connection with the multiple source SCGs and a connection with the multiple target SCGs from a time of the connecting to the multiple target SCGs until a time of the disconnecting from the multiple source SCGs.
16. The method of claim 11 , wherein the target cell group setup information is received in a target cell group setup information element included in a radio resource control (RRC) reconfiguration message.
17. The method of claim 11 , wherein a number of target SCGs in the multiple target SCGs is based at least in part on the UE capability of the UE.
18. The method of claim 11 , wherein the disconnect from the multiple source SCGs is triggered based at least in part on a CG switching indication received in a radio resource control (RRC) reconfiguration message.
19. The method of claim 18 , wherein the CG switching indication includes a cell group identifier associated with the multiple target SCGs.
20. The method of claim 18 , wherein the RRC reconfiguration message further includes an indication to release the multiple source SCGs.
21. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions, when executed by one or more processors of a user equipment (UE), cause the UE to:
transmit an indication of a UE capability associated with the UE, wherein the UE capability enables the UE to be handed over from multiple source secondary cell groups (SCGs) to multiple target SCGs;
connect to the multiple source SCGs;
receive a target cell group setup information, wherein the target cell group setup information is associated with the multiple target SCGs;
connect to the multiple target SCGs based at least in part on the target cell group setup information during a handover from the multiple source SCGs to the multiple target SCGs; and
disconnect from the multiple source SCGs after connecting to the multiple target SCGs.
22. The non-transitory computer-readable medium of claim 21 , wherein the target cell group setup information is associated with multiple source CGs and multiple target CGs that include the multiple source SCGs and the multiple target SCGs, respectively.
23. The non-transitory computer-readable medium of claim 22 , wherein the multiple source CGs and the multiple target CGs include a set of source master CGs and a set of target master CGs, respectively.
24. The non-transitory computer-readable medium of claim 21 , wherein the target cell group setup information includes at least one of:
a target cell group identifier,
a primary cell identifier,
a set of secondary cell identifiers, or
a configuration per cell.
25. The non-transitory computer-readable medium of claim 21 , wherein the UE maintains a connection with the multiple source SCGs and a connection with the multiple target SCGs from a time of the connecting to the multiple target SCGs until a time of the disconnecting from the multiple source SCGs.
26. The non-transitory computer-readable medium of claim 21 , wherein the target cell group setup information is received in a target cell group setup information element included in a radio resource control (RRC) reconfiguration message.
27. The non-transitory computer-readable medium of claim 21 , wherein a number of target cell SCGs in the multiple target SCGs is based at least in part on the UE capability of the UE.
28. The non-transitory computer-readable medium of claim 21 , wherein the disconnect from the multiple source SCGs is triggered based at least in part on a CG switching indication received in a radio resource control (RRC) reconfiguration message.
29. The non-transitory computer-readable medium of claim 28 , wherein the CG switching indication includes a cell group identifier associated with the multiple target SCGs.
30. The non-transitory computer-readable medium of claim 28 , wherein the RRC reconfiguration message further includes an indication to release the multiple source SCGs.