Power amplifier pre-distortion device and method for orthogonal frequency division multiplexing
US7310381B2 · kind B2 · utility
2Cited by
14References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2003 |
| Grant date | Dec 18, 2007 |
| Priority date | — |
| Expiry date | Aug 2, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/368
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In some embodiments of the present invention the nature of an input signal is identified and the amplification of a pre-amplifier and a power amplifier in a transmitter system are modified responsive to whether the momentary content of the input signal is a preamble or data and to the modulation rate of the input signal. In some other embodiments sets of amplification factors are set to reduce in-band noise at the antenna of the transmitter system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.