Patent ID: 7991079

Claim:
A method of receiving data in an orthogonal frequency division multiplex (OFDM) system operating in accordance with an FFT numerology and having one or more channels each having a corresponding transmission bandwidth, the method comprising the steps of: a) demodulating a received signal to generate an analog time domain signal; b) converting, at an FFT sampling rate, the analog time domain signal to a time-domain sample sequence; c) applying, at the FFT sampling rate, an N-point FFT algorithm to the time-domain sample sequence; and d) generating one or more data tones in combination with one or more reference pilot tones from the time-domain sample sequence based on the N-point FFT algorithm, wherein the FFT numerology defines: i) N as an integer representing a size of the N-point FFT algorithm determined by the FFT sampling rate, wherein a value for N is defined for each transmission bandwidth, and ii) the FFT sampling rate based upon a rational multiple of a base clock signal of the OFDM system so as to be less than 1.2 times the corresponding transmission bandwidth.