Enhancing grant-free uplink transmission for low latency traffic

A user equipment (UE) for wireless communication, comprising:

• at least one memory;
• and
• at least one processor coupled with the at least one memory and configured to cause the UE to:
• receive a configuration that includes a mapping of a partition of multiple preambles to multiple configured-grant configurations (CG-configs);
• select a CG-config based on uplink data to be transmitted to a network entity;
• and
• transmit a preamble that indicates the selected CG-config to the network entity.

A method performed by a network entity, the method comprising:

• generating a configuration that includes a mapping of one or more preambles transmitted in a preamble partition to one or more configured-grant configurations (CG-configs),
• wherein each CG-config of the one or more CG-configs includes time-frequency contention-based (CB) or contention free (CF) resources in a time-frequency grid;
• and
• transmitting the generated configuration to a user equipment (UE).

A method performed by a user equipment (UE), the method comprising:

• receiving a configuration that includes a mapping of a partition of multiple preambles to configured-grant configurations (CG-configs);
• selecting a CG-config based on uplink data to be transmitted to a network entity;
• and
• transmitting a preamble that indicates the selected CG-config to the network entity.