Method and apparatus for eliminating frequency-domain interference signals
US8437412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2009 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Sep 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/7102
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a method and an apparatus for eliminating frequency-domain interference signals, and relates to communication technologies. The method includes: multiplying a frequency-domain channel estimation value by a frequency-domain interference signal to obtain a frequency-domain received interference signal; and subtracting the frequency-domain received interference signal from the frequency-domain received signal to obtain the frequency-domain received signal free of interference. The apparatus includes a multiplying module and a subtracting module. A frequency-domain equalizer includes an interference signal obtaining module and an interference signal eliminating module. The technical solution provided herein eliminates interference signals in the frequency domain, and saves the calculation load in contrast with elimination of time-domain interference signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.