Technology for a user equipment (UE) operable for quasi-co-location (QCL) is disclosed. The UE can demodulate a synchronization signal (SS) block transmitted by a gNB from a first antenna port, wherein one or more of a Doppler shift, a Doppler spread, an average delay, a delay spread, and spatial receiving parameters are derived from the SS block. The UE can decode a QCL indication that provides an assumption of QCL between a first reference signal of the first antenna port and a second reference signal of a second antenna port. The UE can demodulate the physical channel or the reference signal transmitted by the gNB from the second antenna port, using one or more of the Doppler shift, the Doppler spread, the average delay, the delay spread, and the spatial receiving parameters based on the assumption of QCL.