Handling uplink transmissions for multi-TRP operation

A user equipment (UE) comprising:

• one or more processors;
• circuitry to wirelessly communicate with a network;
• and
• a memory storing instructions that, when executed by the one or more processors, cause the UE to perform operations comprising:
• receiving, from one or more transmission and reception points (TRPs), a physical downlink shared channel (PDSCH) transmission, the PDSCH transmission comprising a first PDSCH transmission and a second PDSCH transmission, wherein the first PDSCH transmission is associated with a first control resource set (CORESET) scheduling the first PDSCH transmission, and wherein the second PDSCH transmission is associated with a second CORESET scheduling the second PDSCH transmission;
• determining, for a first hybrid automatic repeat request-acknowledgement (HARQ-ACK) associated with the first CORESET, a first TRP index value in accordance with the first CORESET scheduling the first PDSCH transmission, wherein determining the first TRP index value comprises using a CORESET index parameter configured in a ConfiguredGrantConfig information element provided by a radio resource control (RRC) layer;
• determining, for a second HARQ-ACK associated with the second CORESET, a second TRP index value in accordance with the second CORESET scheduling the second PDSCH transmission;
• determining, that the first HARQ-ACK is scheduled to be transmitted in a first a physical uplink control channel (PUCCH) transmission;
• determining that the PUCCH transmission overlaps in time with a first physical uplink shared channel (PUSCH) transmission associated with the second TRP index value;
• determining to drop the first PUCCH transmission or the first PUSCH transmission;
• and
• transmitting the first HARQ-ACK and the second HARQ-ACK in accordance with at least one of the first TRP index value or the second TRP index value.

A method to be performed by a first access node operating in a multi-node system comprising a plurality of access nodes, the method comprising:

• determining a first index value for the first access node, wherein each of the plurality of access nodes is associated with a respective index value;
• including the first index value in a ConfiguredGrantConfig information element (IE);
• and
• transmitting, via radio resource control (RRC) signaling, the ConfiguredGrantConfig IE to a user equipment (UE) served by the access node.