Enhanced successive interference cancellation (SIC) receiver for multiple-input multiple-output (MIMO) systems
US7924933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2007 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Oct 1, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03993
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method includes the steps of: i) listing out all possibilities for first symbol of a two stream signal; ii) determining a second symbol of the two stream signal for each said first symbol listed out, iii) evaluating a metric for each said first symbol and second symbol pair, iv) determining the exact maximum log likelihood ratio for all bits associated with said first symbol using said metrics, v) decoding a codeword-1 using the maximum log likelihood ratios, vi) re-encoding said codeword-1, vii) modulating said re-encoded codeword-1, viii) subtracting said modulated re-encoded codeword-1 from said two stream signal, ix) determining metrics for all possibilities for second symbol in the signal obtained in viii, x) determining the maximum log likelihood ratios for all bits associated with second symbol, and xi) decoding said codeword-2 using the maximum log likelihood ratios for all bits associated with said second symbol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.