Patent ID: 9369329
Filing Date: 2016-06-14
CPC Classification: H04L

Claim Text:
1. A method comprising the steps of: receiving, at an antenna of a receiver system, a plurality of samples of at least one orthogonal frequency division multiplex (OFDM) signal, the samples containing at least one complete OFDM symbol including data samples and a cyclic prefix comprising inter -symbol interference (ISI) samples and one or more ISI-free samples; using an analog-to-digital converter (ADC) operatively connected to the antenna to convert the samples of the OFDM signal into digital samples; using a processor operatively connected to the ADC and using the digital samples to determine a symbol time offset (STO) estimate θ that minimizes the squared difference between the ISI-free samples and their corresponding data samples and satisfies a correlation based boundary condition; and using the processor to remove the cyclic prefix from the OFDM symbol based upon the determined STO estimate.