Updating pucch spatial relation information

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:
• receive a medium access control (MAC) control element (CE) (MAC CE) indicating an update to a spatial relation configuration of the UE for physical uplink control channel (PUCCH) transmissions, the update indicated by PUCCH resource information, wherein the PUCCH resource information includes first PUCCH resource information including a first PUCCH resource identifier (ID) that identifies a first PUCCH resource and first spatial identification information;
• update the spatial relation configuration of the UE based on at least one of the first PUCCH resource information or other PUCCH resource information of the PUCCH resource information, wherein the other PUCCH resource information is in a same PUCCH resource group as the first PUCCH resource;
• and
• transmit a PUCCH transmission based on the updated spatial relation configuration.

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

• a memory;
• and
• at least one processor coupled to the memory and configured to:
• transmit a medium access control (MAC) control element (CE) (MAC CE) indicating an update to a spatial relation configuration of a user equipment (UE) for physical uplink control channel (PUCCH) transmissions, the update indicated by PUCCH resource information, wherein the PUCCH resource information includes first PUCCH resource information including a first PUCCH resource identifier (ID) that identifies a first PUCCH resource and first spatial identification information;
• and
• receive a PUCCH transmission based on an updated spatial relation configuration of the UE, wherein the updated spatial relation configuration is based on at least one of the first PUCCH resource information or other PUCCH resource information of the PUCCH resource information, wherein the other PUCCH resource information is in a same PUCCH resource group as the first PUCCH resource.