Methods and apparatuses for interference cancellation with frequency error compensation for equalizer adaptation
US8755459B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2010 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Jun 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03414
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In accordance with an example embodiment of the present invention, a method comprises receiving a input signal comprising an interfering signal component and a desired signal component at a wireless device; estimating a frequency error of the interfering signal component; and frequency-shifting the input signal based at least in part on the estimated frequency error. The method also comprises estimating a frequency response based on the frequency-shifted input signal and a reconstructed first cancellation signal; obtaining a second cancellation signal by applying the estimated frequency response to the first cancellation signal; subtracting the second cancellation signal from the input signal; and decoding the desired signal component from the input signal after the second cancellation signal is subtracted from the input signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.