Patent ID: 8098569
Filing Date: 2012-01-17
Classification: H04L

Abstract:
1. A digital processing system utilized in a transmitter that generates a transmission signal, the system comprising: a first circuit that receives a discrete signal of complex data symbols, calculates a frequency response of the discrete signal, and outputs a first vector of length M; a second circuit that receives the vector of length M and generates a second vector of length N, wherein the second vector of length N includes elements of the first vector at positions corresponding to tones allocated to the transmitter; a third circuit that receives the second vector and generates a digital time domain vector therefrom for transmission by the transmitter by inserting zero value symbols corresponding to tones not allocated to the transmitter; a fourth circuit configured to pre-pend a cyclic prefix to the digital time domain Vector; and wherein the transmitter is configured to generate a signal representing the pre-pended digital time domain vector for transmission.