Patent ID: 7639754

Claim:
A method for detecting a frame boundary of a received signal in a digital communication system, the method comprising: (a) a receiver of the digital communication system, generating a delayed signal by delaying the received signal by a predetermined period, the received signal including two or more segments of samples repeated in a time domain, each segment having a repetition length corresponding to a non-integer number of samples; (b) the receiver of the digital communication system, calculating a plurality of correlation values by correlating first sequences of samples in the received signal with second sequences of samples in the delayed signal across a predetermined correlation length in the time domain, wherein the predetermined correlation length is determined at least by performing one of a ceiling operation, a rounding operation or a floor operation on the repetition length; and (c) the receiver of the digital communication system, determining a frame boundary of the received signal based on a timing index corresponding to a largest correlation value of the plurality of correlation values.