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公开(公告)号：US11356856B2
公开(公告)日：2022-06-07
申请号：US16928964
申请日：2020-07-14
Applicant: MOTOROLA SOLUTIONS, INC.
Inventor： Arthur Christopher Leyh , Gregory J. Buchwald , Rodney W. Hagen
Abstract: Apparatus and method for reallocation of spectral resources in multiwaveform systems. One embodiment provides a base station operating in a narrowband spectrum and broadband spectrum that share a band allocation of RF spectrum. The base station includes a narrowband transceiver, a broadband transceiver, and an electronic processor coupled to the narrowband transceiver and the broadband transceiver. The electronic processor is configured to determine that a traffic load on the narrowband transceiver is increasing and determine a number of additional carrier channels based on the traffic load to operate the narrowband transceiver within a predefined blocking rate. The electronic processor is also configured to reduce a bandwidth of the broadband transceiver based on the number of additional carrier channels and assign additional carrier channels to the narrowband transceiver to operate the narrowband transceiver with the number of additional carrier channels.
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公开(公告)号：US20220022046A1
公开(公告)日：2022-01-20
申请号：US16928964
申请日：2020-07-14
Applicant: MOTOROLA SOLUTIONS, INC.
Inventor： Arthur Christopher Leyh , Gregory J. Buchwald , Rodney W. Hagen
Abstract: Apparatus and method for reallocation of spectral resources in multiwaveform systems. One embodiment provides a base station operating in a narrowband spectrum and broadband spectrum that share a band allocation of RF spectrum. The base station includes a narrowband transceiver, a broadband transceiver, and an electronic processor coupled to the narrowband transceiver and the broadband transceiver. The electronic processor is configured to determine that a traffic load on the narrowband transceiver is increasing and determine a number of additional carrier channels based on the traffic load to operate the narrowband transceiver within a predefined blocking rate. The electronic processor is also configured to reduce a bandwidth of the broadband transceiver based on the number of additional carrier channels and assign additional carrier channels to the narrowband transceiver to operate the narrowband transceiver with the number of additional carrier channels.
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公开(公告)号：US10826440B2
公开(公告)日：2020-11-03
申请号：US16235386
申请日：2018-12-28
Applicant: MOTOROLA SOLUTIONS, INC.
Inventor： Rodney W. Hagen
Abstract: Apparatus and method for extended operational bandwidth amplifiers with fractional instantaneous bandwidth feed forward correction. In one embodiment, the method includes amplifying a radio frequency (RF) input signal to provide an amplified RF signal and introducing a first delay in the amplified RF signal. The method also includes receiving an error signal of the amplified RF signal and centering a correction bandwidth with respect to the amplified RF signal. The method also includes amplifying the error signal and combining the amplified RF signal and the amplified error signal to reduce an error in the amplified RF signal. The first delay is smaller than a second delay caused by the error path.
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公开(公告)号：US10658982B1
公开(公告)日：2020-05-19
申请号：US16231306
申请日：2018-12-21
Applicant: MOTOROLA SOLUTIONS, INC.
Inventor： Dennis M. Drees , Mitchell R. Blozinski , Rodney W. Hagen
Abstract: Apparatus and method for dynamically linearizing multi-carrier power amplifiers. In one example, the method includes storing a correction set including a plurality of correction solutions and loading the correction set into an RF power amplifier linearizer. The method includes determining a first carrier configuration of an RF transmitter during a first timeslot of operation of the RF transmitter and sending a first correction solution index to the RF power amplifier linearizer. The first correction solution index corresponds to a first correction solution of the plurality of correction solutions. The method also includes determining that a carrier configuration change is initiated to operate the RF transmitter with a second carrier configuration during a second timeslot of operation of the RF transmitter and sending a second correction solution index to the RF power amplifier linearizer. The second correction solution index corresponds to a second correction solution of the plurality of correction solutions.
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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.
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Patent Agency Ranking
公开(公告)号：US20210119839A1
公开(公告)日：2021-04-22
申请号：US16657614
申请日：2019-10-18
Applicant: MOTOROLA SOLUTIONS, INC.
Inventor： Gregory J. Buchwald , Apolinar Chaidez , Rodney W. Hagen , Arthur Christopher Leyh
Abstract: A base station device and a method for multi-carrier crest factor reduction are provided. The method includes generating, using a plurality of radio frequency sources, a plurality of radio frequency carrier signals. The method also includes initiating modulation, using a plurality of carrier modulators, of a first subset of the plurality of radio frequency carrier signals with information signals at a first time to generate a plurality of modulated signals and initiating modulation, using the plurality of carrier modulators, of a second subset of the plurality of radio frequency carrier signals with the information signals at a second time to generate the plurality of modulated signals. The second time is a predetermined time offset after the first time. The method also includes transmitting, using one or more antennae, a multi-carrier signal including the plurality of modulated signals.
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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.
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公开(公告)号：US11032112B2
公开(公告)日：2021-06-08
申请号：US16657614
申请日：2019-10-18
Applicant: MOTOROLA SOLUTIONS, INC.
Inventor： Gregory J. Buchwald , Apolinar Chaidez , Rodney W. Hagen , Arthur Christopher Leyh
Abstract: A base station device and a method for multi-carrier crest factor reduction are provided. The method includes generating, using a plurality of radio frequency sources, a plurality of radio frequency carrier signals. The method also includes initiating modulation, using a plurality of carrier modulators, of a first subset of the plurality of radio frequency carrier signals with information signals at a first time to generate a plurality of modulated signals and initiating modulation, using the plurality of carrier modulators, of a second subset of the plurality of radio frequency carrier signals with the information signals at a second time to generate the plurality of modulated signals. The second time is a predetermined time offset after the first time. The method also includes transmitting, using one or more antennae, a multi-carrier signal including the plurality of modulated signals.
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公开(公告)号：US10763791B2
公开(公告)日：2020-09-01
申请号：US16231353
申请日：2018-12-21
Applicant: MOTOROLA SOLUTIONS, INC.
Inventor： Rodney W. Hagen , Mitchell R. Blozinski , Dennis M. Drees
Abstract: Apparatus and method for selective linearization of scalable fault tolerant frequency agile transmitters. In one embodiment, the method includes receiving timestamped carrier configurations and segmenting the timestamped carrier configurations into time segments having a pre-determined time length. The method also includes determining composite carrier configuration in a present time segment for a predetermined number of future time segments and determining a correction solution of a plurality of correction solutions associated with the composite carrier configuration in a mapping of a plurality of carrier configurations and the plurality of correction solutions. The method includes providing the correction solution to a linearizer of at least one of a plurality of multi-carrier power amplifiers. The plurality of power amplifiers are provided in one or more banks of multi-carrier power amplifiers.
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10.发明申请公开(公告)号：US20200212851A1
公开(公告)日：2020-07-02
申请号：US16235386
申请日：2018-12-28
Applicant: MOTOROLA SOLUTIONS, INC.
Inventor： Rodney W. Hagen
Abstract: Apparatus and method for extended operational bandwidth amplifiers with fractional instantaneous bandwidth feed forward correction. In one embodiment, the method includes amplifying a radio frequency (RF) input signal to provide an amplified RF signal and introducing a first delay in the amplified RF signal. The method also includes receiving an error signal of the amplified RF signal and centering a correction bandwidth with respect to the amplified RF signal. The method also includes amplifying the error signal and combining the amplified RF signal and the amplified error signal to reduce an error in the amplified RF signal. The first delay is smaller than a second delay caused by the error path.
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