Patent 7860178 was granted and assigned to Industrial Technology Research Institute on December, 2010 by the United States Patent and Trademark Office.
A guard section length detection method is disclosed. In the method, a guard section length detection method is used in an OFDM system. The OFDM symbol includes a data interval having a first length, and a guard section having a guard section length. The method detects a first symbol boundary and a second symbol boundary, and determines the guard section length based on a length between the first symbol boundary and the second symbol boundary.