Power backoff techniques for modulation schemes

A network device, comprising:

• one or more processors;
• and
• one or more memories coupled with the one or more processors, wherein the one or more processors are configured to:
• select, for a user equipment (UE), a modulation scheme to be used by the UE for an uplink message to be transmitted on an uplink channel and a constellation distribution parameter associated with the modulation scheme;
• transmit, to the UE, an indication of the selected modulation scheme and the selected constellation distribution parameter;
• and
• receive, from the UE, the uplink message on the uplink channel based at least in part on the transmitted indication in accordance with a power reduction parameter that corresponds to the constellation distribution parameter.

A method of wireless communications performed by a user equipment (UE), comprising:

• receiving an indication of a constellation distribution parameter and a modulation scheme to be used by the UE for an uplink message on an uplink channel;
• selecting a power reduction parameter based at least in part on the constellation distribution parameter;
• determining an uplink transmission power based at least in part on the power reduction parameter indicated by the constellation distribution parameter and the indicated modulation scheme;
• and
• determining the uplink message using the indicated modulation scheme according to the determined uplink transmission power.

A method of wireless communications performed by a network device, comprising:

• selecting, for a user equipment (UE), a modulation scheme to be used by the UE for an uplink message to be transmitted on an uplink channel and a constellation distribution parameter associated with the modulation scheme;
• transmitting, to the UE, an indication of the selected modulation scheme and the selected constellation distribution parameter;
• and
• receive, from the UE, the uplink message on the uplink channel based at least in part on the transmitted indication in accordance with a power reduction parameter that corresponds to the constellation distribution parameter.