Spatial assumption configuration for new radio (NR) downlink transmission

An apparatus configured to be employed in a gNode B, comprising:

• a memory interface;
• and
• processing circuitry configured to:
• process a beam failure recovery (BFR) request that indicates a new candidate beam;
• generate a CORESET (Control Resource Set)-BFR of a set of configured CORESETs, wherein the CORESET-BFR is dedicated to deliver a response to the BFR request;
• receive an ACK (Acknowledgement) for the response to the BFR request;
• generate scheduling information for a first PDSCH (Physical Downlink Shared Channel) based on the BFR request, wherein the first PDSCH is scheduled by a first CORESET of the set of configured CORESETs, wherein the first CORESET is different than the CORESET-BFR, wherein the first PDSCH is scheduled before a TCI (Transmission Configuration Information) state is one of reconfigured, reactivated, or re-indicated;
• determine a spatial assumption for the first PDSCH based on an offset between the ACK and the first PDSCH, wherein when the offset is X or more slots the spatial assumption is based on the new candidate beam and wherein when the offset is less than X slots the spatial assumption for the first PDSCH is based on an original beam associated with the first CORESET, further wherein X is one of predefined in a specification or configured via higher layer signaling;
• and
• generate the first PDSCH based on the determined spatial assumption.

A non-transitory machine-readable medium comprising instructions that, when executed, cause a User Equipment (UE) to:

• generate a beam failure recovery (BFR) request that indicates a new candidate beam;
• process a CORESET (Control Resource Set)-BFR of a set of configured CORESETs, wherein the CORESET-BFR is dedicated to deliver a response to the BFR request;
• generate an ACK (Acknowledgement) for the response to the BFR request;
• process scheduling information for a first PDSCH (Physical Downlink Shared Channel) based on the BFR request, wherein the first PDSCH is scheduled by a first CORESET of the set of configured CORESETs, wherein the first CORESET is different than the CORESET-BFR, wherein the first PDSCH is scheduled before a TCI (Transmission Configuration Information) state is one of reconfigured, reactivated, or re-indicated;
• determine a spatial assumption for the first PDSCH based on an offset between the ACK and the first PDSCH, wherein when the offset is X or more slots the spatial assumption is based on the new candidate beam and wherein when the offset is less than X slots the spatial assumption for the first PDSCH is based on an original beam associated with the first CORESET, further wherein X is one of predefined in a specification or configured via higher layer signaling;
• and
• process the first PDSCH based on the determined spatial assumption for the first PDSCH.