UPDATE OF TRANSMISSION CONFIGURATIONS FOR JOINT DOWNLINK AND UPLINK TRANSMISSION CONFIGURATION INDICATOR (TCI) STATES: abstract simplified (18006353)

Systems, methods, and apparatuses are disclosed for updating a joint downlink and uplink transmission configuration indicator (TCI) state for a communication channel or a reference signal. A base station (BS) can indicate to a user equipment (UE) the joint downlink and uplink TCI state, along with the usage, transmission types, or transmission resources associated with it. The UE can then associate the joint downlink and uplink TCI state with a channel or reference signal as indicated by the BS. This allows the UE to utilize a common beam indicated by the joint downlink and uplink TCI state, reducing signaling and network overhead by using a single TCI to indicate properties of a common beam for both downlink and uplink.