Unified tci state association for multi-transmission reception point based communication

A baseband processor configured to, when executing instructions stored in a memory, perform operations comprising:

• receiving configuration of a plurality of transmission configuration indicator (TCI) states and a plurality of TCI codepoints associated with the TCI states, each TCI codepoint indicating one or more TCI states;
• receiving a first single transmission reception point downlink control information (sDCI) indicating a TCI codepoint of the plurality of TCI codepoints;
• receiving a second sDCI that schedules a physical uplink shared channel (PUSCH) transmission, wherein the second sDCI indicates a particular TCI state associated with the TCI codepoint indicated by the first sDCI;
• and
• in response, causing transmission of the PUSCH transmission based on the particular TCI state.

A user equipment (UE), comprising:

• a memory;
• and
• one or more processors configured to execute instructions stored in the memory to cause the UE to
• receive a configuration of one or more power control (PC) setting lists, wherein each entry in each of the PC setting lists is associated with one or more transmission reception points (TRPs);
• receive a configuration of a plurality of transmission configuration indicator (TCI) codepoints, each TCI codepoint indicating one or more activated uplink (UL) TCI states;
• receive single transmission reception point downlink control information (sDCI), wherein the sDCI indicates a TCI codepoint of the plurality of TCI codepoints that indicates two UL TCI states, each UL TCI state of the two UL TCI states being associated with one of two different transmission reception points (TRPs);
• and
• in response to one or both of the two UL TCI states not being associated with a power control setting, transmit a PUSCH transmission based on one or more PC settings selected from the respective one or more PC setting lists.

A user equipment (UE), comprising a memory and one or more processors configured to, when executing instructions stored in the memory, cause the UE to:

• receive configuration of a plurality of transmission configuration indicator (TCI) states and a plurality of TCI codepoints associated with the TCI states, each TCI codepoint indicating one or more TCI states;
• receive a first single downlink control information (sDCI), wherein the first sDCI indicates a TCI codepoint of the plurality of TCI codepoints;
• receive a second sDCI scheduling a PUSCH transmission or a PDSCH reception, wherein the subsequent sDCI does not indicate a TCI codepoint;
• and
• in response to the second sDCI, transmit the PUSCH transmission based on a default uplink TCI state or receive the PDSCH reception based on a default downlink TCI state.