Crest factor reduction
US9509541B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 2015 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Aug 10, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2623
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is presented which performs crest factor reduction (CFR) on a digitized signal. The method may include determining one or more peak values in a series of data samples of a communication signal, and/or generating a peak queue comprising the one or more peak values that exceed a threshold value and a corresponding index values for each peak value. The method may further include generating, from the peak queue, an entry to a clip table, the entry including a clip coefficient at the corresponding index value, updating the clip table to include a new clip coefficient at a new corresponding index value when the clip function squared at the new index value exceeds a scaled output power for an input power at the new corresponding index value, and/or clipping the series of data samples in a neighborhood of the peak value according to the clip function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.