Method for compensation of information losses in an OFDM-based multi-carrier communication signal caused by blanking out pulse-shaped interferences
US8379780B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2009 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Nov 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0045
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for compensation of information losses caused by blanking out pulse-shaped interferences in a communication signal, wherein a receiver receives a modulated OFDM-based signal comprising an overlap of a sequence of a predetermined number of subcarrier signals whose frequencies differ by a constant amount and which have substantially no signal portions at the frequencies of the respective other subcarrier signals, and pulse-shaped interference signals. The pulse-shaped interference signals are eliminated by pulse blanking. The obtained signal in the frequency domain is characterized in that the signal portions at each subcarrier frequency consist of an overlap of determinable signal portions respectively of all other subcarrier signals. From the respective signal portion at a subcarrier frequency, those determinable signal portions are subtracted in the frequency domain which result from the subcarrier signals of all other subcarriers and are reconstructed from an estimation of the complex data symbols transmitted on each subcarrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.