Patent ID: 9363127
Filing Date: 2016-06-07
CPC Classification: H04L

Claim Text:
1. A method for time domain windowing of an Orthogonal Frequency Division Multiplexing (OFDM)-based signal, the method comprising: receiving, at a receiver, an OFDM-based signal comprising a plurality of subcarriers; identifying a spectral location of an edge subcarrier of the plurality of subcarriers; identifying a spectral distance between each of the plurality of subcarriers and the edge subcarrier; identifying a unique windowing function for each of the plurality of subcarriers, the unique windowing function for each of the plurality of subcarriers having a confinement band that is determined by the summation of a guard band of the OFDM-based signal and the spectral distance between the subcarrier and the edge subcarrier; and performing, at the receiver, discrete prolate spheroidal windowing of each of the plurality of subcarriers of the received OFDM-based signal by multiplying each of the plurality of subcarriers by the unique windowing function in the time domain to generate a filtered OFDM-based signal.