Adaptive PDSCH and DMRS pattern for HST deployment

An apparatus for wireless communication at a user equipment (UE), comprising:

• memory;
• and
• at least one processor coupled to the memory and configured to:
• determine a frequency shift estimate including one or more frequency offsets, each of the one or more frequency offsets corresponding to each of one or more transmission reception points (TRPs);
• transmit, to a base station, the frequency shift estimate including the one or more frequency offsets;
• transmit, to the base station, a capability indication indicating a support of multiple demodulation reference signal (DMRS) patterns;
• receive, from the base station based on the capability indication, a configuration of a plurality of DMRS patterns;
• and
• receive, from the base station, an indication of at least one DMRS pattern of the plurality of DMRS patterns based on the frequency shift estimate, the at least one DMRS pattern including a plurality of DMRS symbols, the at least one DMRS pattern associated with at least one frame structure including a plurality of slots in a subframe.

A method of wireless communication of a user equipment (UE), comprising:

• determining a frequency shift estimate including one or more frequency offsets, each of the one or more frequency offsets corresponding to each of one or more transmission reception points (TRPs);
• transmitting, to a base station, the frequency shift estimate including the one or more frequency offsets;
• transmitting, to the base station, a capability indication indicating a support of multiple demodulation reference signal (DMRS) patterns;
• receiving, from the base station based on the capability indication, a configuration of a plurality of DMRS patterns;
• and
• receiving, from the base station, an indication of at least one DMRS pattern of the plurality of DMRS patterns based on the frequency shift estimate, the at least one DMRS pattern including a plurality of DMRS symbols, the at least one DMRS pattern associated with at least one frame structure including a plurality of slots in a subframe.

A method of wireless communication of a base station, comprising:

• receiving, from a user equipment (UE), a frequency shift estimate including one or more frequency offsets, each of the one or more frequency offsets corresponding to each of one or more transmission reception points (TRPs);
• receiving, from the UE, a capability indication indicating a support of multiple demodulation reference signal (DMRS) patterns;
• transmitting, for the UE based on the capability indication, a configuration of a plurality of DMRS patterns;
• selecting at least one DMRS pattern of the plurality of DMRS patterns based on the frequency shift estimate, the at least one DMRS pattern including a plurality of DMRS symbols, the at least one DMRS pattern associated with at least one frame structure including a plurality of slots in a subframe;
• and
• transmitting, to the UE, an indication of the at least one DMRS pattern selected based on the frequency shift estimate.