Enhancements to slot format indicator (SFI) for new radio (NR) unlicensed (NR-U) operations is disclosed. The SFI may be transmitted separately from a channel occupancy time (COT) range indication. The COT range indication identifies parameters of a three-segment structure of a current COT within the current TxOP. Upon receiving the SFI and COT range indication, a UE may engage in communications with the serving UE in accordance with the COT range indication and the SFI.