Application of uplink transmission configuration indicator state with downlink reference signal to codebook based transmissions

A method of wireless communications by a network entity, comprising:

• sending, to a user equipment (UE), signaling of an uplink transmission configuration indicator (TCI) state for a target codebook based uplink transmission signal;
• determining how the UE processed the codebook based uplink transmission, based on whether the TCI state has a source downlink reference signal (RS);
• and
• processing the codebook based uplink transmission in accordance with the determination.

An apparatus of wireless communications, comprising:

• at least one processor;
• and
• memory coupled to the at least one processor, the memory comprising code executable by the at least one processor to cause the apparatus to:
• receive, from a network entity, signaling of an uplink transmission configuration indicator (TCI) state for a target codebook based uplink transmission signal;
• determine if the TCI state has a source downlink reference signal (RS);
• and
• decide how to process the codebook based uplink transmission based on the determination.

An apparatus of wireless communications, comprising:

• at least one processor;
• and
• memory coupled to the at least one processor, the memory comprising code executable by the at least one processor to cause the apparatus to:
• send, to a user equipment (UE), signaling of an uplink transmission configuration indicator (TCI) state for a target codebook based uplink transmission signal;
• determine how the UE processed the codebook based uplink transmission, based on whether the TCI state has a source downlink reference signal (RS);
• and
• process the codebook based uplink transmission in accordance with the determination.