According to some embodiments, a wireless device is configured to receive resource allocation information from a network node. The wireless device comprises a radio interface and processing circuitry configured to receive radio resource allocation information for a wireless transmission. The radio resource allocation information comprises one or more time-domain resources for the wireless transmission and a mapping type for the wireless transmission. The mapping type refers to a reference signal placement within the wireless transmission (e.g., demodulation reference signal (DMRS) mapping Type A or Type B). The radio interface and processing circuitry are further configured to interpret the received radio resource allocation information to determine a mapping type for the wireless transmission.