Controlling a transmit path based on monitored error vector magnitude (EVM) performance
US8837635B2 · kind B2 · utility
2Cited by
10References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2012 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Jun 29, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/504
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Embodiments provide systems and methods to dynamically control a radio frequency (RF) transmitter based on monitored error vector magnitude (EVM) performance. Embodiments are enabled by a feedback path that allows estimating the EVM at the output of the transmitter and controlling the transmitter, including the power amplifier (PA), accordingly. As such, the transmitter (and the PA) can be operated as close as possible to the ideal operating point that meets, based on actual conditions, a specified EVM performance and desired output power. By doing so, the overall power consumption of the transmitter is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.