System and method for ue processing time relaxation for multi-trp transmission

A user equipment (UE) comprising:

• a transceiver;
• and
• a processor coupled with the transceiver,
• wherein the processor is configured to receive, via the transceiver, a first physical downlink shared channel (PDSCH) from a first transmission and reception point (TRP) corresponding to a first scheduling physical downlink control channel (PDCCH) and a second PDSCH from a second TRP corresponding to a second scheduling PDCCH, wherein the first PDSCH and the second PDSCH overlap at least partially in time in a slot,
• wherein the processor is configured to transmit, via the transceiver, a first hybrid automatic repeat request acknowledgement (HARQ-ACK) message and a second HARQ-ACK message based on the first PDSCH and the second PDSCH in accordance with a first processing time parameter and a second processing time parameter, respectively,
• wherein the first processing time parameter is based on a PDSCH mapping type, a processing capability of the UE, and one or more timing characteristics of the first PDSCH and the second PDSCH.

A system comprising:

• a first base station comprising a first transmission and reception point (TRP);
• and
• a second base station comprising a second TRP, wherein the first and second base stations are configured to transmit, in a slot to a user equipment (UE), a first scheduling physical downlink control channel (PDCCH) and a second scheduling PDCCH,
• wherein the first and second base stations are configured to transmit, in the slot to the UE, a first physical downlink shared channel (PDSCH) from the first TRP corresponding to the first scheduling PDCCH and a second PDSCH from the second TRP corresponding to the second scheduling PDCCH, wherein the first PDSCH and the second PDSCH overlap at least partially in time,
• wherein the first and second base stations are configured to receive, from the UE, a first hybrid automatic repeat request acknowledgement (HARQ-ACK) message and a second HARQ-ACK message based on the first PDSCH and the second PDSCH in accordance with a first processing time parameter and a second processing time parameter, respectively, and
• wherein the first processing time parameter is based on a PDSCH mapping type, a processing capability of the UE, and one or more timing characteristics of the first PDSCH and the second PDSCH.