Selection of transmission parameters for a maximum permissible exposure event
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive an indication of first values for a set of transmission parameters for an uplink transmission; and transmit, based at least in part on identifying a maximum permissible exposure event, the uplink transmission based at least in part on second values for the set of transmission parameters, wherein the second values are different from the first values for at least one modulation parameter of the set of transmission parameters. Numerous other aspects are provided.
1. A method of wireless communication performed by a user equipment (UE), comprising:
receiving an indication of first values for a set of transmission parameters for an uplink transmission;
reducing a transmission power for the uplink transmission based at least in part on identifying a maximum permissible exposure event; and
transmitting the uplink transmission using the reduced transmission power and using second values for the set of transmission parameters based at least in part on a determination of whether the reduced transmission power is sufficient for a device to receive the uplink transmission, wherein the second values are different from the first values for at least one modulation parameter of the set of transmission parameters.
2. The method of claim 1 , wherein the set of transmission parameters comprises one or more of:
a modulation and coding scheme for the uplink transmission,
a demodulation reference signal (DMRS) pattern for the uplink transmission,
a DMRS bundling configuration for the uplink transmission,
a slot aggregation configuration for the uplink transmission,
time and frequency allocations of resources for the uplink transmission, or
instantaneous power for the uplink transmission.
3. The method of claim 1 , further comprising:
receiving an indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.
4. The method of claim 3 , wherein receiving the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event comprises:
receiving, via radio resource control signaling and separately from the indication of the first values for the set of transmission parameters for the uplink transmission, the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.
5. The method of claim 3 , wherein receiving the indication of the first values for the set of transmission parameters for the uplink transmission comprises:
receiving, via a single message, the indication of the first values and the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.
6. The method of claim 1 , further comprising:
providing, to a base station, an indication that the second values are to be used for the set of transmission parameters for the uplink transmission.
7. The method of claim 6 , wherein providing the indication that the second values are to be used for the set of transmission parameters comprises:
transmitting the indication that the second values are to be used for the set of transmission parameters via one or more of:
an uplink control information message via a physical uplink control channel,
an uplink control information message via a physical uplink shared channel,
a medium access control control element, or
a power headroom report.
8. The method of claim 6 , wherein the indication that the second values are to be used for the set of transmission parameters is deactivated based at least in part on one or more of:
expiration of a configured amount of time, or
transmission of an indication to deactivate the indication that the second values are to be used for the set of transmission parameters.
9. The method of claim 6 , further comprising:
receiving a request to provide the indication that the second values are to be used for the set of transmission parameters,
wherein providing the indication that the second values are to be used for the set of transmission parameters is based at least in part on the request.
10. The method of claim 1 , wherein the uplink transmission is scheduled as part of a configured grant.
11. A user equipment (UE) for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
receive an indication of first values for a set of transmission parameters for an uplink transmission;
reduce a transmission power for the uplink transmission based at least in part on identifying a maximum permissible exposure event; and
transmit the uplink transmission using the reduced transmission power and using second values for the set of transmission parameters based at least in part on a determination of whether the reduced transmission power is sufficient for a device to receive the uplink transmission, wherein the second values are different from the first values for at least one modulation parameter of the set of transmission parameters.
12. The UE of claim 11 , wherein the set of transmission parameters comprises one or more of:
a modulation and coding scheme for the uplink transmission,
a demodulation reference signal (DMRS) pattern for the uplink transmission,
a DMRS bundling configuration for the uplink transmission,
a slot aggregation configuration for the uplink transmission,
time and frequency allocations of resources for the uplink transmission, or
instantaneous power for the uplink transmission.
13. The UE of claim 11 , wherein the one or more processors are further configured to:
receive an indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.
14. The UE of claim 13 , wherein the one or more processors, to receive the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event, are configured to:
receive, via radio resource control signaling and separately from the indication of the first values for the set of transmission parameters for the uplink transmission, the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.
15. The UE of claim 13 , wherein the one or more processors, to receive the indication of the first values for the set of transmission parameters for the uplink transmission, are configured to:
receive, via a single message, the indication of the first values and the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.
16. The UE of claim 11 , wherein the one or more processors are further configured to:
provide, to a base station, an indication that the second values are to be used for the set of transmission parameters for the uplink transmission.
17. The UE of claim 16 , wherein the one or more processors, to provide the indication that the second values are to be used for the set of transmission parameters, are configured to:
transmit the indication that the second values are to be used for the set of transmission parameters via one or more of:
an uplink control information message via a physical uplink control channel,
an uplink control information message via a physical uplink shared channel,
a medium access control control element, or
a power headroom report.
18. The UE of claim 16 , wherein the indication that the second values are to be used for the set of transmission parameters is deactivated based at least in part on one or more of:
expiration of a configured amount of time, or
transmission of an indication to deactivate the indication that the second values are to be used for the set of transmission parameters.
19. The UE of claim 16 , wherein the one or more processors are further configured to:
receive a request to provide the indication that the second values are to be used for the set of transmission parameters,
wherein providing the indication that the second values are to be used for the set of transmission parameters is based at least in part on the request.
20. The UE of claim 11 , wherein the uplink transmission is scheduled as part of a configured grant.
21. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a user equipment (UE), cause the UE to:
receive an indication of first values for a set of transmission parameters for an uplink transmission;
reduce a transmission power for the uplink transmission based at least in part on identifying a maximum permissible exposure event; and
transmit the uplink transmission using the reduced transmission power and using second values for the set of transmission parameters based at least in part on a determination of whether the reduced transmission power is sufficient for a device to receive the uplink transmission, wherein the second values are different from the first values for at least one modulation parameter of the set of transmission parameters.
22. The non-transitory computer-readable medium of claim 21 , wherein the set of transmission parameters comprises one or more of:
a modulation and coding scheme for the uplink transmission,
a demodulation reference signal (DMRS) pattern for the uplink transmission,
a DMRS bundling configuration for the uplink transmission,
a slot aggregation configuration for the uplink transmission,
time and frequency allocations of resources for the uplink transmission, or
instantaneous power for the uplink transmission.
23. The non-transitory computer-readable medium of claim 21 , wherein the one or more instructions further cause the UE to:
receive an indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.
24. The non-transitory computer-readable medium of claim 23 , wherein the one or more instructions to receive the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event further cause the UE to:
receive, via radio resource control signaling and separately from the indication of the first values for the set of transmission parameters for the uplink transmission, the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.
25. The non-transitory computer-readable medium of claim 23 , wherein the one or more instructions to receive the indication of the first values for the set of transmission parameters for the uplink transmission further cause the UE to:
receive, via a single message, the indication of the first values and the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.
26. An apparatus for wireless communication, comprising:
means for receiving an indication of first values for a set of transmission parameters for an uplink transmission;
means for reducing a transmission power for the uplink transmission based at least in part on identifying a maximum permissible exposure event; and
means for transmitting the uplink transmission using the reduced transmission power and using second values for the set of transmission parameters based at least in part on a determination of whether the reduced transmission power is sufficient for a device to receive the uplink transmission, wherein the second values are different from the first values for at least one modulation parameter of the set of transmission parameters.
27. The apparatus of claim 26 , wherein the set of transmission parameters comprises one or more of:
a modulation and coding scheme for the uplink transmission,
a demodulation reference signal (DMRS) pattern for the uplink transmission,
a DMRS bundling configuration for the uplink transmission,
a slot aggregation configuration for the uplink transmission,
time and frequency allocations of resources for the uplink transmission, or
instantaneous power for the uplink transmission.
28. The apparatus of claim 26 , further comprising:
means for receiving an indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.
29. The apparatus of claim 28 , wherein the means for receiving the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event further comprise:
means for receiving, via radio resource control signaling and separately from the indication of the first values for the set of transmission parameters for the uplink transmission, the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.
30. The apparatus of claim 28 , wherein the means for receiving the indication of the first values for the set of transmission parameters for the uplink transmission further comprise:
means for receiving, via a single message, the indication of the first values and the indication to use the second values for the set of transmission parameters based at least in part on identifying a maximum permissible exposure event.