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公开(公告)号：US10727958B2
公开(公告)日：2020-07-28
申请号：US16561579
申请日：2019-09-05
Applicant: Samsung Electronics Co., Ltd.
Inventor： Daeyoung Kim , Youngik Cho
Abstract: A device for measuring a reflection coefficient of an antenna includes processing circuitry configured to extract a first feedback signal and a second feedback signal from a third feedback signal based on first symbol information of a first symbol included in a radio frequency (RF) transmit signal transferred to the antenna, the first feedback signal corresponding to at least a portion of a cyclic prefix portion of the first symbol, the second feedback signal corresponding to at least a portion of a back-end portion of the first symbol, the third feedback signal being generated from a portion of the RF transmit signal provided by a coupler, and compute the reflection coefficient based on the first feedback signal and the second feedback signal.
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公开(公告)号：US20240179033A1
公开(公告)日：2024-05-30
申请号：US18505927
申请日：2023-11-09
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Daeyoung Kim , Joontae Kim , Hyunseok Yu , Youngik Cho
CPC classification number: H04L25/03006 , H04L25/025 , H04L2025/0349 , H04L2025/03636
Abstract: Provided is an interference cancellation circuit including a relative delay control circuit receiving a first transmission signal of a first frequency, and a second transmission signal of a second frequency different from the first frequency and including a first delay buffer delaying the second transmission signal by a first delay time and a second delay buffer delaying the second transmission signal by a second delay time, a delay reference generation circuit generating respective reference signals by receiving the first transmission signal and the delayed second transmission signal from the relative delay control circuit, a weight control circuit updating a weight vector, a relative delay estimation circuit estimating a relative delay based on the reference signals, and an adaptive filter generating an interference model signal based on the weight vector and a first reference signal of the reference signals and filter the interference model signal from a received signal.
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公开(公告)号：US20240204977A1
公开(公告)日：2024-06-20
申请号：US18540065
申请日：2023-12-14
Applicant: Samsung electronics CO., LTD.
Inventor： Daeyoung Kim , Joontae Kim , Hyunseok Yu , Gangminh Lee , Youngik Cho
IPC: H04L5/14
CPC classification number: H04L5/1461
Abstract: An interference cancellation circuit includes: an activation circuit configured to receive at least one transmission path signal and a reception path signal and configured to generate an activation control signal based on at least one of the reception path signal and the at least one transmission path signal; a forgetting factor control circuit configured to compare a control metric with a plurality of threshold values and control a forgetting factor value based on the control metric compared with the plurality of threshold values; a kernel generation circuit configured to receive a transmission signal corresponding to the at least one transmission path signal and configured to generate an interference model; and an adaptive filter configured to receive a kernel signal from the kernel generation circuit, and configured to receive the forgetting factor value from the forgetting factor control circuit to cancel self-interference.
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公开(公告)号：US10979089B2
公开(公告)日：2021-04-13
申请号：US16599641
申请日：2019-10-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Daeyoung Kim , Youngik Cho
Abstract: A device for measuring a reflection coefficient of an antenna by using a radio frequency (RF) feedback signal provided by a coupler based on an RF transmission signal provided to the antenna includes a feedback circuit configured to generate a baseband feedback signal by down-converting and filtering the RF feedback signal, and a signal processing device configured to control the down-converting, based on a target frequency band, process a baseband transmission signal and the baseband feedback signal to have the target frequency band, and calculate a reflection coefficient of the antenna corresponding to the target frequency band. The RF transmission signal is generated from the baseband transmission signal.
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公开(公告)号：US10826732B2
公开(公告)日：2020-11-03
申请号：US16593480
申请日：2019-10-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Daeyoung Kim , Changhyun Baek , Youngik Cho
IPC: H04K1/02 , H04L25/03 , H04L25/49 , H04L25/08 , H04L27/36 , H03F3/21 , H03F1/32 , H03F3/19 , H03F1/02
Abstract: A device for controlling spectral regrowth includes a transmission signal processor configured to generate a baseband transmission signal and a controller. The controller is configured to adjust delay of an envelope tracking path that provides a supply voltage to an envelope tracking power amplifier included in a transmission path that generates a radio frequency (RF) transmission signal from the baseband transmission signal. The controller may obtain allocation information of resource blocks included in the RF transmission signal from the transmission signal processor and may determine the delay of the envelope tracking path based on the allocation information.
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Patent Agency Ranking
公开(公告)号：US20200169436A1
公开(公告)日：2020-05-28
申请号：US16593480
申请日：2019-10-04
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： DAEYOUNG KIM , Changhyun Baek , Youngik Cho
Abstract: A device for controlling spectral regrowth includes a transmission signal processor configured to generate a baseband transmission signal and a controller. The controller is configured to adjust delay of an envelope tracking path that provides a supply voltage to an envelope tracking power amplifier included in a transmission path that generates a radio frequency (RF) transmission signal from the baseband transmission signal. The controller may obtain allocation information of resource blocks included in the RF transmission signal from the transmission signal processor and may determine the delay of the envelope tracking path based on the allocation information.
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公开(公告)号：US20200169276A1
公开(公告)日：2020-05-28
申请号：US16599641
申请日：2019-10-11
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Daeyoung Kim , Youngik Cho
Abstract: A device for measuring a reflection coefficient of an antenna by using a radio frequency (RF) feedback signal provided by a coupler based on an RF transmission signal provided to the antenna includes a feedback circuit configured to generate a baseband feedback signal by down-converting and filtering the RF feedback signal, and a signal processing device configured to control the down-converting, based on a target frequency band, process a baseband transmission signal and the baseband feedback signal to have the target frequency band, and calculate a reflection coefficient of the antenna corresponding to the target frequency band. The RF transmission signal is generated from the baseband transmission signal.
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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：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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