Dynamic reclamation of resources reserved for forward compatibility
Certain aspects of the present disclosure relate to methods and apparatus for dynamic reclamation of resources reserved for forward compatibility using communications systems operating according to new radio (NR) technologies. Certain aspects provide a method for wireless communication. The method generally includes identifying resources previously reserved for forward compatibility (FC) that are available for reuse, and providing signaling, to one or more user equipments (UEs), indicating the identified resources are available for reuse.
1. A method for wireless communications by a network entity, comprising:
identifying resources unavailable to one or more user equipments (UEs); and
providing signaling, to the one or more UEs, indicating the resources unavailable to the one or more UEs, wherein the resources unavailable to the one or more UEs are based on a periodicity of reuse pattern.
2. The method of claim 1 , wherein the resources unavailable to the one or more UEs comprise resources reserved for forward compatibility.
3. The method of claim 1 , wherein the signaling indicates the resources unavailable to the one or more UEs are further based on a frequency hopping pattern.
4. The method of claim 1 , wherein the signaling is at least one of cell-specific, UE-specific, or UE-group-specific.
5. The method of claim 1 , wherein the periodicity of reuse pattern indicates the resources unavailable to the one or more UEs for a time duration.
6. The method of claim 5 , wherein at least one of:
the time duration is triggered by at least one of downlink control information (DCI); or
the time duration is a part of a forward compatibility (FC) resource configuration.
7. The method of claim 1 , wherein the signaling indicates the resources unavailable to the one or more UEs based on spatial beamforming.
8. The method of claim 1 , further comprising:
signaling multiple forward compatibility (FC) resource configurations to the one or more UEs via radio resource control (RRC) signaling; and
indicating the resources unavailable to the one or more UEs as one of the multiple FC resource configurations.
9. The method of claim 1 , wherein the resources unavailable to the one or more UEs are identified based on one or more triggering events.
10. The method of claim 9 , wherein the one or more triggering events comprise a triggering event based on at least one of:
location of the one or more UEs;
non-overlapping spatial sectors;
application-specific requirements; or
capabilities of the one or more UEs.
11. The method of claim 9 , wherein the one or more triggering events comprise a triggering event based on actual usage of the resources resources unavailable to the one or more UEs.
12. The method of claim 11 , further comprising determining the actual usage of the identified resources based on at least one of:
sensing of loading of the resources unavailable to the one or more UEs;
sensing of traffic on the resources unavailable to the one or more UEs; or
backhaul signaling of at least one of loading of the resources unavailable to the one or more UEs or traffic on the resources unavailable to the one or more UEs.
13. A method for wireless communications by a user equipment (UE), comprising:
receiving signaling identifying resources unavailable to the UE, wherein the signaling indicates the resources unavailable to the UE based on a periodicity of reuse pattern; and
communicating using the resources unavailable to the UE.
14. The method of claim 13 , wherein the resources unavailable to the UE comprise resources reserved for forward compatibility.
15. The method of claim 13 , wherein the signaling indicates the resources unavailable to the UE are further based on a frequency hopping pattern.
16. The method of claim 13 , wherein the signaling is at least one of cell-specific, UE-specific, or UE-group-specific.
17. The method of claim 13 , wherein the periodicity of reuse pattern indicates the resources unavailable to the UE for a time duration.
18. The method of claim 17 , wherein:
the time duration is triggered by downlink control information (DCI), or
the time duration is a part of a forward compatibility (FC) resource configuration.
19. The method of claim 13 , wherein the signaling indicates the resources unavailable to the UE based on spatial beamforming.
20. The method of claim 13 , further comprising receiving signaling of multiple forward compatibility (FC) resource configurations via radio resource control (RRC) signaling, wherein the signaling indicating the resources unavailable to the UE provides an indication of one of the multiple FC resource configurations.
21. An apparatus for wireless communications by a network entity, comprising:
at least one processor configured to:
identify resources unavailable to one or more user equipments (UEs);
provide signaling, to the one or more UEs, indicating the resources unavailable to the one or more UEs, wherein the resources unavailable to the one or more UEs are based on a periodicity of reuse pattern; and
a memory coupled with the at least one processor.
22. The apparatus of claim 21 , wherein the resources unavailable to one or more UEs comprise resources reserved for forward compatibility.
23. The apparatus of claim 21 , wherein the signaling indicates the resources unavailable to the one or more UEs are further based on a frequency hopping pattern.
24. The apparatus of claim 21 , wherein the signaling is at least one of cell-specific, UE-specific, or UE-group-specific.
25. The apparatus of claim 21 , wherein:
the periodicity of reuse pattern indicates the resources unavailable to the one or more UEs for a time duration; and
at least one of:
the time duration is triggered by at least one of downlink control information (DCI); or
the time duration is a part of a forward compatibility (FC) resource configuration.
26. An apparatus for wireless communications by a user equipment (UE), comprising:
at least one processor configured to:
receive signaling identifying resources unavailable to the UE, wherein the signaling indicates the resources unavailable to the UE based on a periodicity of reuse pattern; and
communicate using the resources unavailable to the UE; and
a memory coupled with the at least one processor.
27. The apparatus of claim 26 , wherein the resources unavailable to UE comprise resources reserved for forward compatibility.
28. The apparatus of claim 26 , wherein the signaling indicates the resources unavailable to the UE are further based on a frequency hopping pattern.
29. The apparatus of claim 26 , wherein the signaling is at least one of cell-specific, UE-specific, or UE-group-specific.
30. The apparatus of claim 26 , wherein:
the periodicity of reuse pattern indicates the resources unavailable to the UE for a time duration; and
at least one of:
the time duration is triggered by at least one of downlink control information (DCI); or
the time duration is a part of a forward compatibility (FC) resource configuration.