Group common demodulation reference signal for multiple user equipments

An apparatus configured for wireless communication, the apparatus comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor, wherein the at least one processor is configured to:
• obtain, an allocation of frequency resources for a group common demodulation reference signal (GC-DMRS) associated with a plurality of UEs;
• receive, from a base station, a frequency domain resource allocation (FDRA) for a physical downlink shared channel (PDSCH) scheduled for transmission, the FDRA associated with a pattern indicating resources allocated to each of the UEs of the plurality of UEs associated with the GC-DMRS;
• receive, from the base station, the GC-DMRS and the PDSCH;
• generate a channel estimate based on the GC-DMRS and the allocation of frequency resources to the GC-DMRS;
• and
• demodulate the PDSCH based on the channel estimate.

A method of wireless communication, the method comprising:

• determining, at a base station, an allocation of frequency resources for a group common demodulation reference signal (GC-DMRS) associated with a plurality of user equipments (UEs);
• transmitting, to a UE of the plurality of UEs, a frequency domain resource allocation (FDRA) for a physical downlink shared channel (PDSCH) scheduled for transmission to the UE, the FDRA associated with a pattern indicating resources allocated to each of the UEs of the plurality of UEs associated with the GC-DMRS;
• and
• transmitting, to the UE, the GC-DMRS and the PDSCH.

An apparatus configured for wireless communication, the apparatus comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor, wherein the at least one processor is configured to:
• determine an allocation of frequency resources for a group common demodulation reference signal (GC-DMRS) associated with a plurality of user equipments (UEs);
• initiate transmission, to a UE of the plurality of UEs, of a frequency domain resource allocation (FDRA) for a physical downlink shared channel (PDSCH) scheduled for transmission to the UE, the FDRA associated with a pattern indicating resources allocated to each of the UEs of the plurality of UEs associated with the GC-DMRS;
• and
• initiate transmission, to the UE, of the GC-DMRS and the PDSCH.