US 11,456,760 B1 · Linearizing narrowband carriers with low resolution predistorters

Abstract

Apparatus and method for linearizing narrowband carriers with low resolution predistorters are provided. The method includes amplifying, using a power amplifier, one or more broadcast carriers and linearizing, using a predistorter coupled to the power amplifier, the one or more broadcast carriers. The method also includes determining, using an electronic processor, a composite bandwidth of the one or more broadcast carriers and determining, using the electronic processor, whether the composite bandwidth is below a modulation bandwidth of the predistorter. The method further includes controlling, using the electronic processor, a pacification carrier generator coupled to the electronic processor to combine a pacification carrier with the one or more broadcast carriers when the composite bandwidth is below the minimum modulation bandwidth of the predistorter.

Claims24

Dependent claims

A radio frequency (RF) system for linearizing narrowband carriers with low resolution predistorters, comprising:

a pacification carrier generator configured to selectively generate a pacification carrier which is combined with one or more broadcast carriers on a bus, wherein the pacification carrier is combined with the one or more broadcast carriers to satisfy a minimum modulation bandwidth of a predistorter;
the predistorter coupled to receive signals from the bus and configured to linearize the received signals from the bus, wherein the linearized signals include the one or more broadcast carriers;
and
the power amplifier configured to amplify the linearized signals which include the one or more broadcast carriers.

1 more element

Dependencies are inferred from the claim text.

Linearizing narrowband carriers with low resolution predistorters

Life of this patent

Linearizing narrowband carriers with low resolution predistorters

Life of this patent

Abstract

Claims24