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公开(公告)号：US20220014287A1
公开(公告)日：2022-01-13
申请号：US17185498
申请日：2021-02-25
Applicant: SAMSUNG ELECTRONICS CO., LTD
Inventor： Hongmin Choi , Haedong Yeon , Junse Lee , Heesang Noh , Changhyun Baek
IPC: H04B17/364 , H04B17/354 , H04B17/13
Abstract: A method is provided. The method includes estimating adjacent channel leakage ratios respectively corresponding based on a test output signal output from a power amplifier according to a test input signal corresponding to a plurality of frequencies; selecting a test delay value corresponding to a largest value among the estimated adjacent channel leakage ratios; and providing a supply voltage to the power amplifier based on an envelope signal delayed according to the selected test delay value. For each of the plurality of test delay values, a corresponding adjacent channel leakage ratio is estimated based on a ratio of a magnitude of a component included in the test output signal and a magnitude of an inter-modulated component.
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公开(公告)号：US20210384928A1
公开(公告)日：2021-12-09
申请号：US17411186
申请日：2021-08-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hongmin Choi , Junse Lee , Hyunseok Yu
Abstract: Systems and methods are described to perform wireless communication. The device includes a pre-distortion circuit configured to pre-distort an input signal based on a parameter set including a plurality of coefficients and generate a pre-distorted signal, a power amplifier configured to amplify the pre-distorted signal and generate an output signal, and a parameter obtaining circuit configured to perform an iterative approximation operation based on the output signal and the pre-distorted signal, which change over time, according to an indirect training structure configured to minimize a difference between an intermediate signal obtained based on the output signal and the pre-distorted signal, and obtain the parameter set.
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公开(公告)号：US11595065B2
公开(公告)日：2023-02-28
申请号：US17411186
申请日：2021-08-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hongmin Choi , Junse Lee , Hyunseok Yu
Abstract: Systems and methods are described to perform wireless communication. The device includes a pre-distortion circuit configured to pre-distort an input signal based on a parameter set including a plurality of coefficients and generate a pre-distorted signal, a power amplifier configured to amplify the pre-distorted signal and generate an output signal, and a parameter obtaining circuit configured to perform an iterative approximation operation based on the output signal and the pre-distorted signal, which change over time, according to an indirect training structure configured to minimize a difference between an intermediate signal obtained based on the output signal and the pre-distorted signal, and obtain the parameter set.
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公开(公告)号：US11581964B2
公开(公告)日：2023-02-14
申请号：US17185498
申请日：2021-02-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hongmin Choi , Haedong Yeon , Junse Lee , Heesang Noh , Changhyun Baek
IPC: H04B17/364 , H04B17/354 , H04B17/13
Abstract: A method is provided. The method includes estimating adjacent channel leakage ratios respectively corresponding based on a test output signal output from a power amplifier according to a test input signal corresponding to a plurality of frequencies; selecting a test delay value corresponding to a largest value among the estimated adjacent channel leakage ratios; and providing a supply voltage to the power amplifier based on an envelope signal delayed according to the selected test delay value. For each of the plurality of test delay values, a corresponding adjacent channel leakage ratio is estimated based on a ratio of a magnitude of a component included in the test output signal and a magnitude of an inter-modulated component.
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Patent Agency Ranking
公开(公告)号：US20200287578A1
公开(公告)日：2020-09-10
申请号：US16736956
申请日：2020-01-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： HONGMIN CHOI , Junse Lee , Hyunseok Yu
Abstract: Systems and methods are described to perform wireless communication. The device includes a pre-distortion circuit configured to pre-distort an input signal based on a parameter set including a plurality of coefficients and generate a pre-distorted signal, a power amplifier configured to amplify the pre-distorted signal and generate an output signal, and a parameter obtaining circuit configured to perform an iterative approximation operation based on the output signal and the pre-distorted signal, which change over time, according to an indirect training structure configured to minimize a difference between an intermediate signal obtained based on the output signal and the pre-distorted signal, and obtain the parameter set.
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公开(公告)号：US11671059B2
公开(公告)日：2023-06-06
申请号：US17645076
申请日：2021-12-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hongmin Choi , Junse Lee , Hyunseok Yu , Youngik Cho
CPC classification number: H03F1/3258 , H03F3/189 , H03F3/24 , H04B1/0475 , H03F2201/3224
Abstract: A device configured to perform wireless communication includes: a pre-distortion circuit configured to generate a pre-distorted input signal by performing pre-distortion on an input signal based on a parameter set comprising a plurality of coefficients; a power amplifier configured to generate an output signal by amplifying an RF signal based on the pre-distorted input signal; and a parameter obtaining circuit configured to obtain second memory polynomial modeling information corresponding to an operating frequency band based on first memory polynomial modeling information corresponding to each of a plurality of frequency sections and obtain a parameter set according to an indirect learning structure by using the second memory polynomial modeling information.
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公开(公告)号：US11251755B2
公开(公告)日：2022-02-15
申请号：US16833771
申请日：2020-03-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hongmin Choi , Junse Lee , Hyunseok Yu , Youngik Cho
Abstract: A device configured to perform wireless communication includes: a pre-distortion circuit configured to generate a pre-distorted input signal by performing pre-distortion on an input signal based on a parameter set comprising a plurality of coefficients; a power amplifier configured to generate an output signal by amplifying an RF signal based on the pre-distorted input signal; and a parameter obtaining circuit configured to obtain second memory polynomial modeling information corresponding to an operating frequency band based on first memory polynomial modeling information corresponding to each of a plurality of frequency sections and obtain a parameter set according to an indirect learning structure by using the second memory polynomial modeling information.
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公开(公告)号：US11133834B2
公开(公告)日：2021-09-28
申请号：US16736956
申请日：2020-01-08
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hongmin Choi , Junse Lee , Hyunseok Yu
Abstract: Systems and methods are described to perform wireless communication. The device includes a pre-distortion circuit configured to pre-distort an input signal based on a parameter set including a plurality of coefficients and generate a pre-distorted signal, a power amplifier configured to amplify the pre-distorted signal and generate an output signal, and a parameter obtaining circuit configured to perform an iterative approximation operation based on the output signal and the pre-distorted signal, which change over time, according to an indirect training structure configured to minimize a difference between an intermediate signal obtained based on the output signal and the pre-distorted signal, and obtain the parameter set.
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公开(公告)号：US20210013844A1
公开(公告)日：2021-01-14
申请号：US16833771
申请日：2020-03-30
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hongmin Choi , Junse Lee , Hyunseok Yu , Youngik Cho
Abstract: A device configured to perform wireless communication includes: a pre-distortion circuit configured to generate a pre-distorted input signal by performing pre-distortion on an input signal based on a parameter set comprising a plurality of coefficients; a power amplifier configured to generate an output signal by amplifying an RF signal based on the pre-distorted input signal; and a parameter obtaining circuit configured to obtain second memory polynomial modeling information corresponding to an operating frequency band based on first memory polynomial modeling information corresponding to each of a plurality of frequency sections and obtain a parameter set according to an indirect learning structure by using the second memory polynomial modeling information.
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