Digital pre-distortion for orthogonal frequency division multiplexing (OFDM) signals
US7924941B2 · kind B2 · utility
1Cited by
2References
8Claims
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Key dates
| Filing date | Nov 27, 2007 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Nov 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2624
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method (300) and a system (100) for processing an orthogonal frequency division multiplexing (OFDM) signal. At least one portion of an OFDM symbol (125) that exceeds an amplitude limiting threshold can be identified. The identified portion of the OFDM symbol (125) can be filtered to generate a pre-distortion noise (145). The OFDM symbol (125) and the pre-distortion noise (145) can be combined to generate a pre-distorted OFDM symbol (165).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.