Patent ID: 8223737

Claim:
A method comprising the steps of: receiving a composite signal within a channel bandwidth, wherein the composite signal comprises a channel impaired SC-FDMA transmit signal from at least a first wireless communication terminal transmitting on a first set of sub-carriers; determining an amount of DC distortion, wherein a location of the DC distortion correspond to a radio frequency carrier frequency of at least the first wireless communication terminal and a receiver processing the received composite signal; determining whether or not to remove the DC distortion based on the amount of DC distortion; and if the DC distortion is to be removed, removing the DC distortion wherein the DC distortion is a fraction of a sub-carrier spacing away from a nominal center frequency of a sub-carrier of the first set of sub-carriers and wherein the sub-carrier spacing is a distance between nominal center frequencies of two adjacent sub-carriers of the first set of sub-carriers.