Demodulation reference signal parameter selection for grant-free user equipment uplink transmission

A network node for wireless communication, comprising:

• one or more memories;
• and
• one or more processors, coupled to the one or more memories, configured to cause the network node to:
• transmit, to a user equipment (UE), a resource pool configuration associated with a plurality of resources in a resource pool and a plurality of demodulation reference signal (DMRS) parameter sets associated with each of the plurality of resources in the resource pool, wherein the plurality of DMRS parameter sets are associated with different values for at least one transmit parameter;
• and
• receive, from the UE, a physical uplink shared channel (PUSCH) message in a resource of the plurality of resources in the resource pool, wherein the PUSCH message includes a DMRS parameter.

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

• receiving, from a network node, a resource pool configuration associated with a plurality of resources in a resource pool and a plurality of demodulation reference signal (DMRS) parameter sets associated with each of the plurality of resources in the resource pool, wherein the plurality of DMRS parameter sets are associated with different values for at least one transmit parameter;
• selecting a resource from the plurality of resources in the resource pool;
• selecting a DMRS parameter set from the plurality of DMRS parameter sets associated with the selected resource based on at least one transmit parameter value associated with a physical uplink shared channel (PUSCH) message;
• selecting a DMRS parameter from the selected DMRS parameter set;
• and
• transmitting, to the network node, a PUSCH message in the selected resource, wherein the PUSCH message includes the selected DMRS parameter.