Systems and methods for transmit-only peak-to-average ratio reduction in the oversampled regime using reserved tones
US7974181B2 · kind B2 · utility
3Cited by
2References
17Claims
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Key dates
| Filing date | Jun 13, 2008 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Jan 4, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2618
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for reducing the peak-to-average power ratio (PAR) at the transmitter can reduce the dynamic range required in various analog components. PAR can be reduced by applying a time-domain compensation signal in the oversampled regime, using tones reserved for PAR reduction. A set of vectors corresponding to PAR tones is generated by processing out-of-phase symbols for each PAR tone to form a span matrix. The span matrix is used to find a best fit of a desired target signal to a time-domain compensation signal comprising only PAR tones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.