A method of operating a network infrastructure equipment in a wireless telecommunications system to support first and second random access procedures, wherein a message size/amount of data for an uplink message of the second random access procedure is different to a message size/amount of data for a corresponding uplink message of the first random access procedure, and wherein the method includes: transmitting a scheduling message comprising an indication of a first set of radio resources to be used for a random access procedure message for the first random access procedure; determining a second set of radio resources for a random access procedure message for the second random access procedure, wherein the second set of radio resources is related to the first set by a predefined relationship; and monitoring for a random access procedure message on both the first and second set of radio resources.