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:
Nov. 26, 2012
Filed:
Nov. 18, 2009
Ralf Böhnke, Stuttgart, DE;
Ralf Böhnke, Stuttgart, DE;
Sony Deutchland GmbH, Berlin, DE;
Abstract
The present invention relates to a transmission apparatus for transmitting OFDM-signals comprising modulation meansfor modulating said signals onto a plurality of subcarriers using a OFDM-modulation method, transformation meansfor transforming said modulated signals into the time domain, and transmission means for transmitting said signals, whereby in said modulation means every M-th subcarrier is modulated, wherein M is an integer and M≧2. The present invention also relates to a corresponding transmission method for transmitting OFDM-signals. The present invention further relates to a receiving apparatus for receiving OFDM-signals comprising M identical or respectively mirrored wave forms within one OFDM-timeburst, wherein M is an integer and M≧2, comprising receiving means for receiving said OFDM-signals, correlation meansfor correlating said wave forms to obtain time synchronization, transformation meansfor transforming said signals into the frequency domain and demodulation meansfor demodulating said signals. The present invention also relates to a corresponding receiving method for receiving OFDM-signals. The present invention provides a much better time and frequency synchronisation performance based on correlation techniques than conventional OFDM-systems.