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:
Sep. 01, 2009
Filed:
Jun. 10, 2005
Zheng Hongming, Beijing, CN;
Guan Hao, Beijing, CN;
Zheng Hongming, Beijing, CN;
Guan Hao, Beijing, CN;
Nokia Corporation, Espoo, FI;
Abstract
A method for reducing interference in a MIMO MultiCode MC-CDMA system is disclosed wherein a BLAST algorithm is implemented over one block of correlation reception data yand estimation channel values H of the correlation reception data yto generate a group of temporary decision symbols C. One symbol, C, is selected having a maximum SNR value from the temporary decision symbols. The temporary decision symbols, C, other than the selected symbol, C, are combined with the estimated channel value H to recover a group of temporary interference signals over the selected symbol, C. The interference signals are subtracted from the correlation reception signal vector, yto generate a corrected reception signal vector y, and a more accurate decision symbol Cis identified from the corrected reception signal vector yand original estimation channel values. The foregoing steps are repeated for other symbols C.