The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 01, 2010
Filed:
Dec. 07, 2006
Cheol-ho Shin, Daejon, KR;
Sung-woo Choi, Daejon, KR;
Sang-in Cho, Daejon, KR;
Kyu-min Kang, Daejon, KR;
Sang-sung Choi, Daejon, KR;
Kwang-roh Park, Daejon, KR;
Cheol-Ho Shin, Daejon, KR;
Sung-Woo Choi, Daejon, KR;
Sang-In Cho, Daejon, KR;
Kyu-Min Kang, Daejon, KR;
Sang-Sung Choi, Daejon, KR;
Kwang-Roh Park, Daejon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Provided is a method for adjusting Fast Fourier Transform (FFT) window positioning in a Multi Band Orthogonal Frequency Division Multiplexing Ultra-Wideband (MB-OFDM UWB) system. The method includes the steps of acquiring an initial FFT window position and a frequency hopping position, demodulating a received signal by using the initial FFT window position and the frequency hopping position acquired in the acquiring step, transmitting received data information to a Media Access Control (MAC) layer with a reception frame (RX frame) structure and judging at the MAC layer whether or not a packet error is occurred based on Frame Check Sequences (FCSs), and if no packet error is occurred, returning to the demodulating step, and if the packet error is occurred, changing a register map by using a predetermined interface line in a MAC-physical layer (MAC-PHY) interface to thereby adjust the FFT window position and the frequency hopping position, and then returning to the demodulating step.