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
- Patent Title: Controlling a transmit path based on monitored error vector magnitude (EVM) performance
- Patent Title (中): 基于监测的误差向量幅度(EVM)性能控制发射路径
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Application No.: US13491167Application Date: 2012-06-07
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Publication No.: US08837635B2Publication Date: 2014-09-16
- Inventor: Robert Lorenz , Djordje Tujkovic
- Applicant: Robert Lorenz , Djordje Tujkovic
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: H04L25/49
- IPC: H04L25/49 ; H03F1/32 ; H03F3/24 ; H03G3/30 ; H03F1/02 ; H03F3/195

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.
Public/Granted literature
- US20120314746A1 Controlling a Transmit Path Based on Monitored Error Vector Magnitude (EVM) Performance Public/Granted day:2012-12-13
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