System and method for indicating preemption of transmissions

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

• receiving information from a first user equipment (UE) indicating the first UE will transmit a first ultra-reliable low latency communication (URLLC) packet;
• transmitting a preemption indicator (PI) in a single preconfigured mini-slot in a first slot to at least one second UE for the first URLLC packet, the PI indicating a resource index associated with a reduced transmission power by the at least one second UE, the resource index including one or more resources in a second slot;
• and
• receiving a multi-user transmission from the first UE and the at least one second UE,
• wherein the multi-user transmission includes the first URLLC packet from the first UE and at least one enhanced mobile broadband (eMBB) packet from the at least one second UE, and
• wherein the at least one eMBB packet is received with the reduced transmission power as compared to a different multi-user transmission that does not include the first URLLC packet.

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

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• monitor a single preconfigured mini-slot in each of a plurality of slots for a preemption indicator (PI);
• receive the PI in the single preconfigured mini-slot of a first slot of the plurality of slots, the PI including a resource index associated with a reduced transmission power, the resource index including one or more resources in a second slot;
• decode the PI received in the single preconfigured mini-slot of the first slot of the plurality of slots to obtain the resource index associated with the reduced transmission power;
• and
• perform power reduction of at least one packet upon obtaining the resource index associated with the reduced transmission power from the decoding of the PI;
• and
• transmit the at least one packet with the reduced transmission power on the one or more resources in the second slot or refrain from transmitting the at least one packet on the one or more resources in the second slot.

An apparatus for wireless communication of a base station, comprising:

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• receive information from a first user equipment (UE) indicating the first UE will transmit a first ultra-reliable low latency communication (URLLC) packet;
• transmit a preemption indicator (PI) in a single preconfigured mini-slot in a first slot to at least one second UE for the first URLLC packet, the PI indicating a resource index associated with a reduced transmission power by the at least one second UE, the resource index including one or more resources in a second slot;
• and
• receive a multi-user transmission from the first UE and the at least one second UE,
• wherein the multi-user transmission includes the first URLLC packet from the first UE and at least one enhanced mobile broadband (eMBB) packet from the at least one second UE, and
• wherein the at least one eMBB packet is received with the reduced transmission power as compared to a different multi-user transmission that does not include the first URLLC packet.