System, and associated method, for utilizing block BLAST with PPIC in a MIMO multicode MC-CDMA system
US7583766B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2005 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Mar 8, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J13/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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 yi and estimation channel values H of the correlation reception data yi to generate a group of temporary decision symbols C. One symbol, Cki, is selected having a maximum SNR value from the temporary decision symbols. The temporary decision symbols, C, other than the selected symbol, Cki, are combined with the estimated channel value H to recover a group of temporary interference signals over the selected symbol, Cki. The interference signals are subtracted from the correlation reception signal vector, yi to generate a corrected reception signal vector yi+1, and a more accurate decision symbol Cki+1 is identified from the corrected reception signal vector yi+1 and original estimation channel values. The foregoing steps are repeated for other symbols C{circumflex over (k)}i.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.