Method and apparatus for compensating for phase variations caused by activation of an amplifier
US7400864B2 · kind B2 · utility
2Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 2004 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Jun 1, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/336
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus that reduces the amount of constellation rotation due to power amplifier (PA) insertion phase variation during activation (i.e., turn on) of a transmitter. This is accomplished by applying an instantaneous phase rotation during the transmitter turn on at digital baseband to counteract and minimize unwanted phase variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.