Question: Upon receiving PDSCH carrying MAC-CE active TCI state list update at slot n, when a subset of target TCI states in the active TCI state list are unknown, what determines the timing for the UE to receive UE-dedicated PDCCH or PDSCH with new target TCI states?
Option 1: n + THARQ / NR slot length
Option 2: n + THARQ + (TL1-RSRP_List + TOuk*(Tfirst-SSB_List + TSSB-proc)) / NR slot length
Option 3: n + (TOk*TSSB-proc) / NR slot length
Option 4: n + (Tfirst-SSB_SC + TSSB_CDP) / NR slot length
Explanation: When a subset of the target TCI states is unknown, the UE's ability to receive updated TCI states depends on additional processing and measurement times. This includes the longest L1 measurement among unknown states and the time to process SSBs, scaled by respective factors, added to the HARQ timing, reflecting the delay before the UE can utilize new TCI states.