A method in a wireless communication terminal includes receiving a radio resource allocation having a plurality of sub-carriers that are a subset of available sub-carriers. The available sub-carriers include a DC sub-carrier wherein the DC sub-carrier and all but one edge-most sub-carrier of the plurality of sub-carriers are designated for transmission if the DC sub-carrier is between any two sub-carriers of the allocation, and all of the sub-carriers except the DC sub-carrier are designated for transmission if the DC sub-carrier is not between any two sub-carriers of the allocation.