Phase tracking reference signal (PT-RS) power boosting

An apparatus of a base station, the apparatus comprising:

• processing circuitry to:
• encode baseband signals comprising downlink control information (DCI) for transmission to a user equipment (UE), the DCI including a modulation coding scheme (MCS) index and physical uplink shared channel (PUSCH) allocation, the MCS index corresponding to a phase tracking reference signal (PT-RS) density;
• decode UE capability information from the UE, the decoded HE capability information including a preferred PUSCH-to-PT-RS energy per resource element (EPRE) ratio corresponding to the PT-RS density;
• encode radio resource control (RRC) signaling for transmission to the UE, the RRC signaling indicating a PUSCH-to-PT-RS EPRE ratio based on the preferred PUSCH-to-PT-RS EPRE ratio;
• and
• decode a PT-RS received with uplink data via the PUSCH allocation, the PT-RS associated with PT-RS transmission power based on the indicated PUSCH-to-PT-RS EPRE ratio;
• and
• memory coupled to the processing circuitry, the memory configured to store the PUSCH-to-PT-RS EPRE ratio.

A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a user equipment (UE), the instructions to configure the one or more processors to cause the UE to:

• decode baseband signals comprising radio resource control (RRC) signaling from a base station, the RRC signaling indicating a transmission coding scheme for a physical uplink shared channel (PUSCH) transmission;
• determine PUSCH-to-phase tracking reference signal (PT-RS) energy per resource element (EPRE) ratio using the RRC signaling;
• determine a PT-RS power boosting factor based on the transmission coding scheme and the determined PUSCH-to-PT-RS EPRE ratio;
• and
• encode a PT-RS for transmission using a plurality of PT-RS symbols, the PT-RS transmission using increased transmission power corresponding to the PT-RS power boosting factor.