Signaling for channel occupancy time sharing in frame based equipment mode
Various aspects of the present disclosure generally relate to signaling in frame-based equipment (FBE) mode for channel occupancy time (COT) sharing. In some aspects, a user equipment (UE) may receive, in association with an FBE mode, a message associated with a designation of the UE for either COT sharing or non-COT sharing. The UE may detect whether there is an initial signal at a boundary of a time frame for COT and sleep, monitor, or communicate during the time frame, based at least in part on the designation and the detecting. Numerous other aspects are provided.
1. A method of wireless communication performed by a user equipment (UE), comprising:
receiving, in association with a frame-based equipment mode, a message associated with a designation of the UE for either channel occupancy time (COT) sharing or non-COT sharing;
detecting whether there is an initial signal at a boundary of a time frame for COT; and
one or more of:
sleeping during the time frame, based at least in part on the designation being for non-COT sharing, and based at least in part on detecting that there is no initial signal at the boundary of the time frame; or
monitoring or communicating during the time frame, based at least in part on the designation being for COT sharing and based at least in part on detecting that there is the initial signal at the boundary of the time frame, wherein the message indicates a type of COT sharing, and wherein the type of COT sharing is UE to base station COT sharing or base station to base station COT sharing.
2. The method of claim 1 , wherein the type of COT sharing is UE to base station COT sharing, and wherein the method further comprises sharing the time frame with the base station, based at least in part on the type of COT sharing and based at least in part on detecting the initial signal at the boundary of the time frame.
3. The method of claim 1 , wherein the type of COT sharing is UE to base station COT sharing, and wherein the method further comprises monitoring for control and broadcast signals with a limited subset of symbols during the time frame, based at least in part on the type of COT sharing.
4. The method of claim 1 , wherein the type of COT sharing is base station to base station COT sharing, and wherein the method further comprises monitoring for control and broadcast signals at detection opportunities during the time frame, based at least in part on the type of COT sharing.
5. The method of claim 4 , wherein the monitoring includes monitoring for control and broadcast signals at a pattern of detection occasions, the pattern of detection occasions including a proper subset of the detection opportunities during the time frame.
6. The method of claim 5 , wherein the pattern of detection occasions includes no more than half of the detection opportunities during the time frame.
7. The method of claim 5 , wherein the pattern of detection occasions starts after a first one or more of the detection opportunities during the time frame.
8. The method of claim 1 , wherein the type of COT sharing is both base station to base station COT sharing and UE to base station COT sharing, and wherein the method further comprises monitoring for control and broadcast signals at detection opportunities during the time frame, based at least in part on the type of COT sharing.
9. The method of claim 1 , wherein the message is one or more of a radio resource control message or a downlink control information message.
10. The method of claim 1 , wherein the designation is based on one or more parameters associated with communication by the UE, wherein the one or more parameters include one or more of a quality of service requirement, a latency requirement, or an amount of data.
11. A method of wireless communication performed by a device, comprising:
determining a designation of another device for channel occupancy time (COT) sharing or non-COT sharing in a frame-based equipment mode, based at least in part on one or more parameters associated with communication by the other device;
transmitting a message indicating a designation of the other device for either channel occupancy time (COT) sharing, wherein the message indicates a type of COT sharing and wherein the type of COT sharing is user equipment (UE) to base station COT sharing or base station to base station COT sharing, or non-COT sharing; and
performing an action based at least in part on the designation.
12. The method of claim 11 , wherein the one or more parameters include one or more of a quality of service requirement, a latency requirement, or an amount of data.
13. The method of claim 11 , wherein the device is a base station, the designation is for COT sharing, and a type of COT sharing is UE to base station COT sharing, and wherein performing the action includes sharing a time frame with the UE.
14. The method of claim 11 , wherein the device is a base station and the other device is a UE, and wherein performing the action includes:
generating an instruction for the UE to begin monitoring for a signal in a pattern of detection occasions among detection opportunities during a time frame for a COT, based at least in part on one or more of a comparison of an amount of data and a data threshold, or a comparison of a latency requirement and a latency threshold; and
transmitting the instruction to the UE.
15. The method of claim 14 , wherein the instruction includes an instruction to monitor for control and broadcast signals at a pattern of detection occasions, the pattern of detection occasions including a proper subset of the detection opportunities during the time frame.
16. The method of claim 15 , wherein the pattern of detection occasions includes no more than half of the detection opportunities during the time frame.
17. The method of claim 15 , wherein the pattern of detection occasions starts after a first one or more of the detection opportunities during the time frame.
18. The method of claim 11 , wherein the device and the other device are base stations, and wherein performing the action comprises:
performing a listen before talk (LBT) procedure for a time frame for a COT shared by the other base station; and
sharing the time frame with the other base station, based at least in part on a determination that the LBT procedure is not successful.
19. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors coupled to the memory and configured to:
receive, in association with a frame-based equipment mode, a message associated with a designation of the UE for either channel occupancy time (COT) sharing or non-COT sharing;
detect whether there is an initial signal at a boundary of a time frame for COT; and
one or more of:
sleep during the time frame, based at least in part on the designation being for non-COT sharing, and based at least in part on detecting that there is no initial signal at the boundary of the time frame; or
monitor or communicate during the time frame, based at least in part on the designation being for COT sharing and based at least in part on detecting that there is the initial signal at the boundary of the time frame, wherein the message indicates a type of COT sharing, and wherein the type of COT sharing is UE to base station COT sharing or base station to base station COT sharing.
20. The UE of claim 19 , wherein the type of COT sharing is UE to base station COT sharing, and wherein the one or more processors are configured to share the time frame with the base station, based at least in part on the type of COT sharing and based at least in part on detecting the initial signal at the boundary of the time frame.
21. The UE of claim 19 , wherein the type of COT sharing is UE to base station COT sharing, and wherein the one or more processors are configured to monitor for control and broadcast signals with a limited subset of symbols during the time frame, based at least in part on the type of COT sharing.
22. The UE of claim 19 , wherein the type of COT sharing is base station to base station COT sharing, and wherein the one or more processors are configured to monitor for control and broadcast signals at detection opportunities during the time frame, based at least in part on the type of COT sharing.
23. The UE of claim 19 , wherein the type of COT sharing is both base station to base station COT sharing and UE to base station COT sharing, and wherein the one or more processors are configured to monitor for control and broadcast signals at detection opportunities during the time frame, based at least in part on the type of COT sharing.
24. The UE of claim 19 , wherein the designation is based on one or more parameters associated with communication by the UE, wherein the one or more parameters include one or more of a quality of service requirement, a latency requirement, or an amount of data.
25. The UE of claim 19 , wherein the one or more processors, to monitor, are configured to:
monitor for control and broadcast signals at a pattern of detection occasions, the pattern of detection occasions including a proper subset of the detection occasions during the time frame.
26. The UE of claim 25 , wherein the pattern of detection occasions includes no more than half of the detection occasions during the time frame.
27. The UE of claim 25 , wherein the pattern of detection occasions starts after a first one or more of the detection occasions during the time frame.
28. The UE of claim 19 , wherein the message is one or more of a radio resource control message or a downlink control information message.
29. A device for wireless communication, comprising:
a memory; and
one or more processors coupled to the memory and configured to:
determine a designation of another device for channel occupancy time (COT) sharing or non-COT sharing in a frame-based equipment mode, based at least in part on one or more parameters associated with communication by the other device;
transmit a message indicating a designation of the other device for either channel occupancy time (COT) sharing, wherein the message indicates a type of COT sharing and wherein the type of COT sharing is UE to base station COT sharing or base station to base station COT sharing, or non-COT sharing; and
perform an action based at least in part on the designation.
30. The device of claim 29 , wherein the device is a base station and the other device is a UE and the designation is for COT sharing.
31. The device of claim 29 , wherein the device is a base station, the designation is for COT sharing, and the type of COT sharing is to base station COT sharing, and wherein the one or more processors, to perform the action, are configured to share a time frame with the UE.
32. The device of claim 29 , wherein the device is a base station and the other device is a UE, and wherein the one or more processors, to perform the action, are configured to:
generate an instruction for the UE to begin monitoring for a signal in a pattern of detection occasions among detection opportunities during a time frame for a COT, based at least in part on one or more of a comparison of an amount of data and a data threshold, or a comparison of a latency requirement and a latency threshold; and
transmit the instruction to the UE.