Invention Grant
US08837635B2 Controlling a transmit path based on monitored error vector magnitude (EVM) performance 有权
基于监测的误差向量幅度(EVM)性能控制发射路径

Controlling a transmit path based on monitored error vector magnitude (EVM) performance
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.
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