Power-saving mode based selection of a target node
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless node may receive an indication of a plurality of sets of reference signal identifiers, wherein each set of reference signal identifiers of the plurality of sets of reference signal identifiers identifies reference signals of candidate neighbor nodes associated with the set, and wherein each candidate neighbor node associated with the set is in a same operating mode, and transmit a measurement report based at least in part on measuring one or more reference signals identified in the plurality of sets of reference signal identifiers. Numerous other aspects are provided.
1. A method of wireless communication performed by a child node, comprising:
receiving an indication of a plurality of sets of reference signal identifiers, wherein each set of reference signal identifiers of the plurality of sets of reference signal identifiers identifies reference signals associated with candidate neighbor nodes associated with the set of reference signal identifiers, and wherein each candidate neighbor node associated with the set of reference signal identifiers is in a same operating mode;
determining that a measurement value, of a reference signal of the reference signals, exceeds one or more measurement values, of one or more other reference signals of the reference signals, by a threshold amount; and
transmitting a measurement report, including the measurement value of the reference signal, based at least in part on determining that the measurement value, of the reference signal, exceeds the one or more measurement values, of the one or more other reference signals, by the threshold amount.
2. The method of claim 1 , wherein the plurality of sets of reference signal identifiers includes a first set of reference signal identifiers associated with one or more candidate neighbor nodes, of the candidate neighbor nodes, in an active mode and a second set of reference signal identifiers associated with one or more other candidate neighbor nodes, of the candidate neighbor nodes, in a power-saving mode.
3. The method of claim 2 , further comprising:
receiving, from a control node, a first configuration associated with the first set of reference signal identifiers and a second configuration associated with the second set of reference signal identifiers.
4. The method of claim 3 , wherein transmitting the measurement report comprises:
transmitting a first measurement report, including measurements of reference signals identified in the first set of reference signal identifiers, based at least in part on the first configuration; and
transmitting a second measurement report, including measurements of reference signals identified in the second set of reference signal identifiers, based at least in part on the second configuration.
5. The method of claim 3 , wherein the first configuration includes a first measurement configuration and a first reporting configuration, and wherein the second configuration includes a second measurement configuration and a second reporting configuration.
6. The method of claim 2 , wherein the reference signal is associated with a reference signal identifier of the second set of reference signal identifiers, wherein the measurement report includes the measurement value of the reference signal, and wherein the one or more measurement values of reference signals are identified in the first set of reference signal identifiers.
7. The method of claim 1 , further comprising:
receiving an update to the plurality of sets of reference signal identifiers based at least in part on a determination that one or more candidate neighbor node, of the candidate neighbor nodes, have changed operating modes.
8. The method of claim 7 , further comprising:
transmitting a second measurement report based at least in part on measuring one or more reference signals identified in the update to the plurality of sets of reference signal identifiers.
9. The method of claim 1 , further comprising:
receiving, from a control node, an indication of a transmission schedule for a candidate neighbor node of the candidate neighbor nodes indicating a schedule of transmissions of reference signals associated with the candidate neighbor node,
wherein determining that the measurement value, of the reference signal, exceeds the one or more measurement values, of the one or more other reference signals, by the threshold amount is based at least in part on receiving the indication of the transmission schedule for the candidate neighbor node.
10. A method of wireless communication performed by a control node, comprising:
transmitting, to a child node, a plurality of sets of reference signal identifiers, wherein each set of reference signal identifiers of the plurality of sets of reference signal identifiers identifies reference signals associated with candidate neighbor nodes associated with the set of reference signal identifiers, and wherein each candidate neighbor node associated with the set of reference signal identifiers is in a same operating mode;
transmitting, to the child node, a reporting configuration for the plurality of sets of reference signals based at least in part on transmitting the plurality of sets of reference signal identifiers;
receiving, from the child node, a measurement report based at least in part on transmitting the reporting configuration, wherein the measurement report includes a measurement value of a reference signal, of the reference signals, exceeding one or more measurement values of one or more other reference signals, of the reference signals, by a threshold amount; and
selecting a candidate neighbor node, of the candidate neighbor nodes, associated with the reference signals as a target node for a handover procedure based at least in part on the measurement report.
11. The method of claim 10 , wherein the control node is a serving node of the child node, a wireless node connected to the serving node and the candidate neighbor nodes, or a central unit.
12. The method of claim 10 , wherein the plurality of sets of reference signal identifiers includes a first set of reference signal identifiers associated with one or more candidate neighbor nodes, of the candidate neighbor nodes, in an active mode and a second set of reference signal identifiers associated with one or more other candidate neighbor nodes, of the candidate neighbor nodes, in a power-saving mode.
13. The method of claim 10 , further comprising:
modifying an operating mode of the candidate neighbor node based at least in part on the measurement report.
14. The method of claim 13 , wherein modifying the operating mode of the candidate neighbor node comprises:
determining a current operating mode associated with the candidate neighbor node; and
transmitting, to the candidate neighbor node, an indication causing the candidate neighbor node to modify the current operating mode of the candidate neighbor node based at least in part on the current operating mode and the measurement report.
15. The method of claim 13 , wherein modifying the operating mode of the candidate neighbor node causes the candidate neighbor node to modify at least one of: a periodicity associated with a schedule, a transmit power associated with transmitting signals from the candidate neighbor node, a beam sweep configuration of the candidate neighbor node, an availability of one or more functions that the candidate neighbor node is capable of performing, or a combination thereof.
16. The method of claim 13 , further comprising:
receiving, from the child node, a second measurement report based at least in part on modifying the operating mode of the candidate neighbor node; and
performing a second action based at least in part on receiving the second measurement report.
17. The method of claim 16 , wherein the second action includes:
selecting another candidate neighbor node, of the candidate neighbor nodes, as a target node for a handover procedure, or
modifying an operating mode of the other candidate neighbor nodes based at least in part on the second measurement report.
18. The method of claim 10 , wherein the candidate neighbor nod is selected further based at least in part on:
information associated with the child node,
information associated with the candidate neighbor node, or
a combination thereof.
19. The method of claim 18 , wherein the information associated with the child node includes:
a location of the child node,
a trajectory of the child node,
a service level requested by the child node, or
a combination thereof.
20. The method of claim 18 , wherein the information associated with the candidate neighbor node includes:
an operating mode of the candidate neighbor node,
an operating mode history of the candidate neighbor node,
a power state of the candidate neighbor node,
a cost parameter for selecting the candidate neighbor node, or
a combination thereof.
21. The method of claim 10 , further comprising:
determining an operating mode of the candidate neighbor node based at least in part on at least one of:
information associated with one or more child nodes, or
information associated with a network in which the candidate neighbor node and the control node are located; and
transmitting, to the candidate neighbor node, an operating mode configuration indicating the operating mode of the candidate neighbor node.
22. A method of wireless communication performed by a neighbor node, comprising:
transmitting, in an operating mode, reference signals according to a schedule associated with the operating mode;
receiving, from a control node, an indication of an action performed by the control node based at least in part on a measurement value, of a reference signal of the reference signals, exceeding one or more measurement values, of one or more other reference signals, by a threshold amount; and
modifying the operating mode of the neighbor node based at least in part on receiving the indication from the control node.
23. The method of claim 22 , wherein the operating mode is a power-saving operating mode.
24. The method of claim 22 , wherein the operating mode of the neighbor node is based at least in part on information associated with one or more child nodes.
25. The method of claim 22 , further comprising: transmitting, to the control node, an indication of the schedule associated with the operating mode.
26. The method of claim 22 , wherein modifying the operating mode of the neighbor node includes at least one of:
modifying a periodicity associated with the schedule,
modifying a transmit power associated with transmitting the reference signals,
modifying a beam sweep configuration of the neighbor node,
modifying an availability of one or more functions that the neighbor node is capable of performing, or a combination thereof.
27. The method of claim 23 , wherein the indication of the action performed by the control node indicates that the control node selected the neighbor node as a target node for a handover procedure, and
wherein modifying the operating mode of the neighbor node comprises:
changing the operating mode of the neighbor node to an active mode.
28. The method of claim 22 , wherein the indication of the action performed by the control node indicates a different operating mode for the neighbor node,
wherein modifying the operating mode of the neighbor node comprises:
modifying the operating mode of the neighbor node to the different operating mode; and
transmitting reference signals according to a schedule associated with the different operating mode.
29. A wireless node for wireless communication, comprising: a memory; and
one or more processors coupled to the memory, the one or more processors configured to:
receive an indication of a plurality of sets of reference signal identifiers, wherein each set of reference signal identifiers of the plurality of sets of reference signal identifiers identifies reference signals associated with candidate neighbor nodes associated with the set of reference signal identifiers, wherein each candidate neighbor node associated with the set of reference signal identifiers is in a same operating mode;
determine that a measurement value, of a reference signal of the reference signals, exceeds one or more measurement values, of one or more other reference signals of the reference signals, by a threshold amount; and
transmit a measurement report, including the measurement value of the reference signal, based at least in part on determining that the measurement value, of the reference signal, exceeds the one or more measurement values, of the one or more other reference signals, by the threshold amount.
30. The wireless node of claim 29 , wherein the plurality of sets of reference signal identifiers includes a first set of reference signal identifiers associated with one or more candidate neighbor nodes, of the candidate neighbor nodes, in an active mode and a second set of reference signal identifiers associated with one or more other candidate neighbor nodes, of the candidate neighbor nodes, in a power-saving mode.
31. The wireless node of claim 29 , wherein the one or more processors are configured to:
receive, from a control node, a first configuration associated with the first set of reference signal identifiers and a second configuration associated with the second set of reference signal identifiers.
32. The wireless node of claim 31 , wherein the one or more processors are configured to:
transmit a first measurement report, including measurements of reference signals identified in the first set of reference signal identifiers, based at least in part on the first configuration; and
transmit a second measurement report, including measurements of reference signals identified in the second set of reference signal identifiers, based at least in part on the second configuration.
33. The wireless node of claim 31 , wherein the first configuration includes a first measurement configuration and a first reporting configuration, and wherein the second configuration includes a second measurement configuration and a second reporting configuration.
34. The wireless node of claim 30 , wherein the reference signal is associated with a reference signal identifier of the second set of reference signal identifiers, wherein the measurement report includes the measurement value of the reference signal, and wherein the one or more measurement values of reference signals are identified in the first set of reference signal identifiers.
35. The wireless node of claim 29 , wherein the one or more processors are configured to:
receive an update to the plurality of sets of reference signal identifiers based at least in part on a determination that one or more candidate neighbor nodes, of the candidate neighbor nodes, have changed operating modes.
36. The wireless node of claim 35 , wherein the one or more processors are configured to:
transmit a second measurement report based at least in part on measuring one or more reference signals identified in the update to the plurality of sets of reference signal identifiers.
37. The wireless node of claim 29 , wherein the one or more processors are configured to:
receive, from a control node, an indication of a transmission schedule for a candidate neighbor node of the candidate neighbor nodes indicating a schedule of transmissions of reference signals associated with the candidate neighbor node,
wherein determining that the measurement value, of the reference signal, exceeds the one or more measurement values, of the one or more other reference signals, by the threshold amount is based at least in part on receiving the indication of the transmission schedule for the candidate neighbor node.
38. A control node for wireless communication, comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors configured to:
transmit, to a child node, a plurality of sets of reference signal identifiers, wherein each set of reference signal identifiers of the plurality of sets of reference signal identifiers identifies reference signals associated with candidate neighbor nodes associated with the set of reference signal identifiers, and wherein each candidate neighbor node associated with the set of reference signal identifiers is in a same operating mode;
transmit, to the child node, a reporting configuration for the plurality of sets of reference signals based at least in part on transmitting the plurality of sets of reference signal identifiers;
receive, from the child node, a measurement report based at least in part on transmitting the reporting configuration, wherein the measurement report includes a measurement value of a reference signal, of the reference signals, exceeding one or more measurement values of one or more other reference signals, of the reference signals, by a threshold amount; and
select a candidate neighbor node, of the candidate neighbor nodes, associated with the reference signals as a target node for a handover procedure based at least in part on the measurement report.
39. The control node for wireless communication of claim 38 , wherein the control node comprises a serving node of the child node, a wireless node connected to the serving node and the candidate neighbor nodes, or a central unit.
40. The control node for wireless communication of claim 38 , wherein the plurality of sets of reference signal identifiers includes a first set of reference signal identifiers associated with one or more candidate neighbor nodes, of the candidate neighbor nodes, in an active mode and a second set of reference signal identifiers associated with one or more other candidate neighbor nodes, of the candidate neighbor nodes, in a power-saving mode.
41. The control node for wireless communication of claim 38 , wherein the one or more processors are configured to:
modify an operating mode of the candidate neighbor node based at least in part on the measurement report.
42. The control node for wireless communication of claim 41 , wherein the one or more processors are configured to:
determine a current operating mode associated with the candidate neighbor node; and
transmit, to the candidate neighbor node, an indication causing the candidate neighbor node to modify the current operating mode of the candidate neighbor node based at least in part on the current operating mode and the measurement report.
43. The control node for wireless communication of claim 41 , wherein the operating mode of the candidate neighbor node is associated with at least one modification at the candidate neighbor node for:
a periodicity associated with a schedule,
a transmit power associated with transmitting signals from the candidate neighbor node,
a beam sweep configuration of the candidate neighbor node,
an availability of one or more functions that the candidate neighbor node is capable of performing, or
a combination thereof.
44. The control node for wireless communication of claim 41 , wherein the one or more processors are configured to:
receive, from the child node, a second measurement report based at least in part on modifying the operating mode of the candidate neighbor node; and
perform a second action based at least in part on receiving the second measurement report.
45. The control node for wireless communication of claim 44 , wherein the second action includes:
selecting another candidate neighbor node, of the candidate neighbor nodes, as a target node for a handover procedure, or modifying an operating mode of the other candidate neighbor nodes based at least in part on the second measurement report.
46. The control node for wireless communication of claim 38 , wherein the one or more processors are configured to:
determine an operating mode of the candidate neighbor node based at least in part on at least one of:
information associated with one or more child nodes, or
information associated with a network in which the candidate neighbor node and
the control node are located; and
transmit, to the candidate neighbor node, an operating mode configuration indicating the operating mode of the candidate neighbor node.
47. A neighbor node for wireless communication comprising:
a memory; and
one or more processors coupled to the memory, the one or more processors configured to:
transmit, in an operating mode, reference signals according to a schedule associated with the operating mode;
receive, from a control node, an indication of an action performed by the control node based at least in part on a measurement value, of a reference signal of the reference signals, exceeding one or more measurement values, of one or more other reference signals, by a threshold amount; and
modify the operating mode of the neighbor node based at least in part on receiving the indication from the control node.
48. The neighbor node of claim 47 , wherein the operating mode is a power- saving operating mode.
49. The neighbor node of claim 47 , wherein the operating mode of the neighbor node is based at least in part on information associated with one or more child nodes.
50. The neighbor node of claim 47 , further comprising:
transmitting, to the control node, an indication of the schedule associated with the operating mode.
51. The neighbor node of claim 47 , wherein, to modify the operating mode of the neighbor node, the one or more processors are configured to modify at least one of:
a periodicity associated with the schedule,
a transmit power associated with transmitting the reference signals,
a beam sweep configuration of the neighbor node,
an availability of one or more functions that the neighbor node is capable of performing, or
a combination thereof.
52. The neighbor node of claim 48 , wherein the indication of the action performed by the control node indicates that the control node selected the neighbor node as a target node for a handover procedure, and
wherein, to modify the operating mode of the neighbor node, the one or more processors are configured to:
change the operating mode of the neighbor node to an active mode.
53. The neighbor node of claim 47 , wherein the indication of the action performed by the control node indicates a different operating mode for the neighbor node,
wherein, to modify the operating mode of the neighbor node, the one or more processors are configured to:
modify the operating mode of the neighbor node to the different operating mode; and
transmit reference signals according to a schedule associated with the different operating mode.