Configurable pre-emphasis component for transmission circuitry

摘要

A configurable pre-emphasis filter component may be configured based upon measured frequency response (e.g., filter effect) associated with at least one analog filter positioned between a digital predistortion component and a power amplification component of a transmission circuitry. The frequency response may be measured using a calibration signal sent via the transmission circuitry, a loopback circuit, and a reception circuitry. Calibration circuitry may be used with one or more loopback circuits to measure the frequency response of various analog components of the transmission circuitry. The calibration circuitry may also include logic to determine a configuration for the PEF component based upon the measured frequency response.

主权项

1. A device for transmitting signals via a communications channel, the device comprising:
transmission circuitry that includes a pre-emphasis component to condition a digital predistortion (DPD) output signal, wherein the pre-emphasis component is configurable based at least in part on a measured frequency response associated with a first loopback circuit that includes at least an analog filter positioned between a DPD component and a power amplification (PA) component of the transmission circuitry.