Techniques for providing uplink-based mobility
Techniques are described for wireless communication. A method for wireless communication at a user equipment (UE) includes identifying, while the UE is in a connected mode with a network, a radio resource configuration of the UE, selecting a dedicated set of resources for the UE or a common set of resources for a plurality of UEs based at least in part on the identified radio resource configuration, and transmitting a pilot signal to the network using the selected set of resources. Methods for wireless communication at a network access device and a network access device controller are also described.
1. A method for wireless communication, comprising:
receiving, from each cell of a plurality of cells, measurements of a first set of pilot signals corresponding to a first set of user equipments (UEs) operating with a first radio resource configuration while connected to a network, and of a second set of pilot signals corresponding to a second set of UEs operating with a second radio resource configuration while connected to the network, wherein for each UE in the first set of UEs and each UE in the second set of UEs, a serving cell for the respective UE is determined based at least in part on the measurements, and wherein for each UE in the first set of UEs, a monitoring set of cells to monitor for pilot signals corresponds to the respective UE; and
indicating, to each cell, each UE for which the respective cell is determined to be a serving cell, and each UE for which the respective cell is a member of a monitoring set of cells.
2. The method of claim 1 , wherein the first radio resource configuration is associated with transmitting pilot signals using a dedicated set of resources, and the second radio resource configuration is associated with transmitting pilot signals using a common set of resources.
3. The method of claim 1 , wherein the first radio resource configuration, or the second radio resource configuration, or both comprises a radio resource control (RRC) configuration.
4. The method of claim 1 , further comprising:
initiating a serving cell change procedure for a UE in the first set of UEs based at least in part on the measurements of the first set of pilot signals.
5. The method of claim 4 , wherein initiating the serving cell change procedure comprises:
transmitting to the UE, through a source serving cell for the UE, a reconfiguration message for the UE, the reconfiguration message indicative of a dedicated set of resources to be used, by the UE, after a handover of the UE to a target serving cell.
6. The method of claim 4 , wherein initiating the serving cell change procedure comprises:
transmitting to the UE, through a target serving cell for the UE, a reconfiguration message for the UE, the reconfiguration message indicative of a dedicated set of resources to be used, by the UE, after a handover of the UE to the target serving cell.
7. The method of claim 1 , wherein the monitoring set of cells to monitor for pilot signals corresponding to the respective UE is based at least in part on: measurements of at least one pilot signal corresponding to the respective UE, or a location of the determined serving cell for the respective UE, or a combination thereof.
8. An apparatus for wireless communication, comprising:
a processor; and
memory coupled with the processor, the processor configured to:
receive, from each cell of a plurality of cells, measurements of a first set of pilot signals corresponding to a first set of user equipments (UEs) operating with a first radio resource configuration while connected to a network, and of a second set of pilot signals corresponding to a second set of UEs operating with a second radio resource configuration while connected to the network, wherein for each UE in the first set of UEs and each UE in the second set of UEs, a serving cell for the respective UE is determined based at least in part on the measurements, and wherein for each UE in the first set of UEs, a monitoring set of cells to monitor for pilot signals corresponds to the respective UE;
and
indicate, to each cell, each UE for which the respective cell is determined to be a serving cell, and each UE for which the respective cell is a member of a monitoring set of cells.
9. The apparatus of claim 8 , wherein the first radio resource configuration is associated with transmitting pilot signals using a dedicated set of resources, and the second radio resource configuration is associated with transmitting pilot signals using a common set of resources.
10. The apparatus of claim 8 , wherein the first radio resource configuration, or the second radio resource configuration, or both comprises a radio resource control (RRC) configuration.
11. The apparatus of claim 8 , wherein the processor is configured to:
initiate a serving cell change procedure for a UE based at least in part on the measurements of the first set of pilot signals.
12. The apparatus of claim 11 , wherein, for initiating the serving cell change procedure, the processor is configured to:
transmit to the UE, through a source serving cell for the UE, a reconfiguration message for the UE, the reconfiguration message indicative of a dedicated set of resources to be used, by the UE, after a handover of the UE to a target serving cell.
13. The apparatus of claim 11 , wherein, for initiating the serving cell change procedure, the processor is configured to:
transmit to the UE, through a target serving cell for the UE, a reconfiguration message for the UE, the reconfiguration message indicative of a dedicated set of resources to be used, by the UE, after a handover of the UE to the target serving cell.
14. The apparatus of claim 8 , wherein the monitoring set of cells to monitor for pilot signals corresponding to the respective UE is based at least in part on: measurements of at least one pilot signal corresponding to the respective UE, or a location of the determined serving cell for the respective UE, or a combination thereof.
15. An apparatus for wireless communication, comprising:
means for receiving, from each cell of a plurality of cells, measurements of a first set of pilot signals corresponding to a first set of user equipments (UEs) operating with a first radio resource configuration while connected to a network, and of a second set of pilot signals corresponding to a second set of UEs operating with a second radio resource configuration while connected to the network, wherein for each UE in the first set of UEs and each UE in the second set of UEs, a serving cell for the respective UE is determined based at least in part on the measurements, and wherein for each UE in the first set of UEs, a monitoring set of cells to monitor for pilot signals corresponds to the respective UE;
and
means for indicating, to each cell, each UE for which the respective cell is determined to be a serving cell, and each UE for which the respective cell is a member of a monitoring set of cells.
16. The apparatus of claim 15 , wherein the first radio resource configuration is associated with transmitting pilot signals using a dedicated set of resources, and the second radio resource configuration is associated with transmitting pilot signals using a common set of resources.
17. The apparatus of claim 15 , wherein the first radio resource configuration, or the second radio resource configuration, or both comprises a radio resource control (RRC) configuration.
18. The apparatus of claim 15 , further comprising:
means for initiating a serving cell change procedure for a UE in the first set of UEs based at least in part on the measurements of the first set of pilot signals.
19. The apparatus of claim 18 , wherein the means for initiating the serving cell change procedure comprise:
means for transmitting to the UE, through a source serving cell for the UE, a reconfiguration message for the UE, the reconfiguration message indicative of a dedicated set of resources to be used, by the UE, after a handover of the UE to a target serving cell.
20. The apparatus of claim 18 , wherein the means for initiating the serving cell change procedure comprise:
means for transmitting to the UE, through a target serving cell for the UE, a reconfiguration message for the UE, the reconfiguration message indicative of a dedicated set of resources to be used, by the UE, after a handover of the UE to the target serving cell.
21. The apparatus of claim 15 , wherein the monitoring set of cells to monitor for pilot signals corresponding to the respective UE is based at least in part on: measurements of at least one pilot signal corresponding to the respective UE, or a location of the determined serving cell for the respective UE, or a combination thereof.
22. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to:
receive, from each cell of a plurality of cells, measurements of a first set of pilot signals corresponding to a first set of user equipments (UEs) operating with a first radio resource configuration while connected to a network, and of a second set of pilot signals corresponding to a second set of UEs operating with a second radio resource configuration while connected to the network, wherein for each UE in the first set of UEs and each UE in the second set of UEs, a serving cell for the respective UE is determined based at least in part on the measurements, and wherein for each UE in the first set of UEs, a monitoring set of cells to monitor for pilot signals corresponds to the respective UE;
and
indicate, to each cell, each UE for which the respective cell is determined to be a serving cell, and each UE for which the respective cell is a member of a monitoring set of cells.
23. The non-transitory computer-readable medium of claim 22 , wherein the first radio resource configuration is associated with transmitting pilot signals using a dedicated set of resources, and the second radio resource configuration is associated with transmitting pilot signals using a common set of resources.
24. The non-transitory computer-readable medium of claim 22 , wherein the first radio resource configuration, or the second radio resource configuration, or both comprises a radio resource control (RRC) configuration.
25. The non-transitory computer-readable medium of claim 22 , wherein the instructions are further executable by the processor to:
initiate a serving cell change procedure for a UE based at least in part on the measurements of the first set of pilot signals.
26. The non-transitory computer-readable medium of claim 25 , wherein the instructions to initiate the serving cell change procedure are executable by the processor to:
transmit to the UE, through a source serving cell for the UE, a reconfiguration message for the UE, the reconfiguration message indicative of a dedicated set of resources to be used, by the UE, after a handover of the UE to a target serving cell.
27. The non-transitory computer-readable medium of claim 25 , wherein the instructions to initiate the serving cell change procedure are executable by the processor to:
transmit to the UE, through a target serving cell for the UE, a reconfiguration message for the UE, the reconfiguration message indicative of a dedicated set of resources to be used, by the UE, after a handover of the UE to the target serving cell.
28. The non-transitory computer-readable medium of claim 22 , wherein the monitoring set of cells to monitor for pilot signals corresponding to the respective UE is based at least in part on: measurements of at least one pilot signal corresponding to the UE, or a location of the determined serving cell for the UE, or a combination thereof.