US Patent 8077690 Resource allocation in cellular communication systems

A method for assigning resources to frequency selective (FS) and frequency non-selective (FNS) users, for example, in an orthogonal frequency-division multiplexing (OFDM) wireless communication system, including assigning a first frequency resource to at least one FS user during a time interval, wherein the first frequency resource includes at least two near contiguous sub-carriers, and assigning a second frequency resource to at least one FNS user during the same time interval, the second frequency resource includes for each FNS user at least two non-contiguous sub-carriers, wherein the first and second frequency resources are part of a common frequency channel.