公开(公告)号：US11456760B1

公开(公告)日：2022-09-27

申请号：US17193939

申请日：2021-03-05

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Rodney W. Hagen ,  Gregory J. Buchwald ,  Dennis M. Drees ,  In S. Kim ,  Arthur Christopher Leyh

IPC: H04B1/04 ,  H04B17/318 ,  H04B1/10

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.

公开(公告)号：US20220286151A1

公开(公告)日：2022-09-08

申请号：US17193939

申请日：2021-03-05

Applicant: MOTOROLA SOLUTIONS, INC.

Inventor： Rodney W. Hagen ,  Gregory J. Buchwald ,  Dennis M. Drees ,  In S. Kim ,  Arthur Christopher Leyh

IPC: H04B1/04 ,  H04B17/318 ,  H04B1/10

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.