Flexible resource element (re) mapping and power control of demodulation reference signal (dmrs) in sub-resource block (rb) physical uplink shared channel (pusch) for coverage enhancement

An apparatus for wireless communication, comprising:

• a transceiver;
• a memory configured to store instructions;
• and
• at least one processor communicatively coupled with the transceiver and the memory, wherein the at least one processor is configured to execute the instructions to:
• receive, from a network entity, a sub-resource block (RB) physical uplink shared channel (PUSCH) configuration message associated with a physical resource block (PRB), the sub-RB PUSCH configuration message including at least a demodulation reference signal (DMRS) frequency-domain comb pattern, a DMRS frequency shifting pattern, and a transmit power of a number of DMRS resource elements (REs);
• and
• perform a sub-RB PUSCH transmission in response to receiving the sub-RB PUSCH configuration message.

An apparatus for wireless communication, comprising:

• a transceiver;
• a memory configured to store instructions;
• and
• at least one processor communicatively coupled with the transceiver and the memory, wherein the at least one processor is configured to execute the instructions to:
• transmit, to a user equipment (UE), a sub-resource block (RB) physical uplink shared channel (PUSCH) configuration message associated with a physical resource block (PRB), the sub-RB PUSCH configuration message including at least a demodulation reference signal (DMRS) frequency-domain comb pattern, a DMRS frequency shifting pattern, and a transmit power of a number of DMRS resource elements (REs);
• and
• receive, from the UE, a sub-RB PUSCH transmission in response to transmitting the sub-RB PUSCH configuration message.