Described is an apparatus of a User Equipment (UE). The apparatus may comprise a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to determine a Transport Block Size (TBS) of an Uplink (UL) transmission. The second circuitry may be operable to determine a Resource Block (RB) allocation of the UL transmission. The third circuitry may be operable to establish a Modulation and Coding Scheme (MCS) for the UL transmission based upon at least one of the TBS of the UL transmission and the RB allocation of the UL transmission.