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1.发明申请公开(公告)号：US20180013542A1
公开(公告)日：2018-01-11
申请号：US15546495
申请日：2016-02-02
Applicant: Samsung Electronics Co., Ltd.
Inventor： Taeyoung MIN , Youngyoon WOO , Jaehyung IM , Pavel MARTYNOVICH
Abstract: The present invention relates to an input/output signal synchronization method by a radio frequency unit. The input/output signal synchronization method according to the present invention comprises the steps of: generating a transmitter (Tx) input signal by adding, to a baseband signal, a test signal located at a frequency out of an operation frequency range of the radio frequency unit; collecting the Tx input signal and a Tx output signal obtained by outputting the input signal through a Tx function block; and synchronizing the Tx input signal and the Tx output signals, based on a result obtained by the collecting.
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2.发明公开公开(公告)号：US20230378912A1
公开(公告)日：2023-11-23
申请号：US18302335
申请日：2023-04-18
Inventor： Younggoo YANG , Seunghoon JEE , Hyunuk KANG , Kyoungtae KIM , Changwook KIM , Seungmin WOO , Youngyoon WOO
CPC classification number: H03F1/0288 , H03F3/245 , H03F2200/451
Abstract: An electronic device including a Doherty power amplifier is provided. The electronic device includes a carrier amplifier, a first circuit coupled to an output terminal of the carrier amplifier, a peaking amplifier, a second circuit coupled to an output terminal of the peaking amplifier, and a network circuit. The network circuit includes the Doherty power amplifier and a transmission line for impedance matching with a resonance circuit. The resonance circuit may be disposed between a first area and a second area of the transmission line. The Doherty power amplifier provides an output impedance in a first range distributed based on a frequency within a bandwidth. The network circuit provides a load impedance in a second range distributed based on the frequency within the bandwidth. The first area of the transmission line provides a first phase shift impedance. The second area of the transmission line provides a second phase shift impedance.
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3.发明申请公开(公告)号：US20220385317A1
公开(公告)日：2022-12-01
申请号：US17755517
申请日：2020-06-02
Applicant: Samsung Electronics Co., Ltd. , Industry-Academic Cooperation Foundation, Yonsei University
Inventor： Sunghoon JUNG , Jaebum KIM , Jungwoo KU , Youngyoon WOO , Yeonghwan KIM , Chungyong LEE
IPC: H04B1/04
Abstract: Provided is a method of processing an input signal of an amplifier in an electronic device, the method including obtaining a pre-distorter configured to pre-distort an input signal of the amplifier by using a pretrained neural network model to pre-distort the input signal of the amplifier based on signals input to and output from the amplifier, which are obtained while the amplifier operates in a plurality of different environments, and a plurality of pieces of environmental information corresponding to the plurality of different environments, obtaining an input signal for the amplifier, obtaining information about an environment of the amplifier, pre-distorting the input signal by using the pre-distorter based on the obtained environmental information to prevent an output signal in response to the input signal to be processed by the amplifier from being distorted, and inputting the pre-distorted input signal to the amplifier.
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4.发明公开公开(公告)号：US20230421185A1
公开(公告)日：2023-12-28
申请号：US18122755
申请日：2023-03-17
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Gilwoong KO , Youngyoon WOO , Jungwoo KU
IPC: H04B1/04
CPC classification number: H04B1/0475 , H04B2001/0425
Abstract: According to embodiments, a method performed by an electronic device includes: identifying a channel bandwidth; identifying one or more active DPD units among a plurality of DPD units of a digital pre-distortion (DPD) circuit based on the channel bandwidth and amount of resource allocated within the channel bandwidth; generating a DPD output signal of the DPD circuit based on the one or more active DPD units; generating an amplifier output signal based on the DPD output signal of the DPD circuit, a digital-to-analog converter (DAC), and a power amplifier (PA). While the DPD output signal is generated, at least one DPD unit different from the one or more active DPD units among the plurality of DPD units of the DPD circuit is deactivated.
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公开(公告)号：US20190115878A1
公开(公告)日：2019-04-18
申请号：US16090126
申请日：2017-03-24
Applicant: Samsung Electronics Co., Ltd
Inventor： Munwoo LEE , Youngyoon WOO , Martynovich PAVEL , Jaebum KIM , Donggeun LEE , Sungchul HONG
Abstract: The present disclosure relates to an apparatus and a method for transmitting a signal using a power amplifier in a wireless communication system in which a transceiver comprises a digital pre-distorter configured to distort an input signal based on a distortion control value, a power amplifier configured to amplify an output signal from the digital pre-distorter, an antenna configured to transmit an output signal from the power amplifier, an echo signal canceller configured to remove an echo signal which returns to the power amplifier due to a return loss of a path between the power amplifier and the antenna, from a feedback signal obtained at an output stage of the power amplifier, and a digital pre-distortion adaptation unit configured to determine the distortion control value based on an output signal from the echo signal canceller.
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Patent Agency Ranking
公开(公告)号：US20240283472A1
公开(公告)日：2024-08-22
申请号：US18653314
申请日：2024-05-02
Applicant: Samsung Electronics Co., Ltd.
Inventor： Youngyoon WOO
CPC classification number: H04B1/04 , H04L5/14 , H04B2001/0425
Abstract: The disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long-term evolution (LTE). A method performed by a base station in a wireless communication system is provided. The method includes acquiring, by the base station, a first output signal of digital predistortion (DPD), identifying, by the base station, a distortion section from the starting point of a downlink section after an uplink section has ended in a time division duplex (TDD) configuration, identifying, by the base station, compensation information for a power amplifier of a base station in the distortion section, and providing, by the base station, a signal in which the compensation information is applied to a second output signal of the DPD to the power amplifier.
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公开(公告)号：US20240196352A1
公开(公告)日：2024-06-13
申请号：US18583338
申请日：2024-02-21
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Youngyoon WOO , Yunsilk PARK
IPC: H04W56/00
CPC classification number: H04W56/0045
Abstract: A method performed by a base station in a wireless communication system includes receiving, from a terminal configured with timing advance (TA), an uplink signal in an uplink period, according to a time division duplex (TDD) configuration, transmitting, through a transmission path of the base station to the terminal, an advance signal for a predetermined duration between an end point of receiving the uplink signal and a start point of a downlink period of the TDD configuration, the transmission path of the base station having a power amplifier as a transmission end, and transmitting, to the terminal, a downlink signal in the downlink period.
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公开(公告)号：US20240120886A1
公开(公告)日：2024-04-11
申请号：US18351907
申请日：2023-07-13
Inventor： Seunghoon JEE , Youngoo YANG , Hyunuk KANG , Kyoungtae KIM , Changwook KIM , Youngyoon WOO , Yi Fei CHEN
CPC classification number: H03F1/0288 , H03F1/565 , H03F3/245 , H03F2200/198 , H03F2200/451
Abstract: A Doherty power amplifier of a wireless communication system is provided. The Doherty power amplifier includes a first stage including a first power amplifier and a second power amplifier. The Doherty power amplifier includes a second stage including a third power amplifier and a fourth power amplifier. The Doherty power amplifier includes a coupler between the first stage and the second stage. The Doherty power amplifier includes a load impedance connected to the second stage. A bias of the first power amplifier is applied differently from a bias of the second power amplifier. A bias of the third power amplifier is applied in the same manner as a bias of the fourth power amplifier.
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9.发明公开公开(公告)号：US20230387948A1
公开(公告)日：2023-11-30
申请号：US18188106
申请日：2023-03-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Munwoo LEE , Jungwoo KU , Youngyoon WOO , Dogeun EUM , Seonghyeon LEE
IPC: H04B1/04
CPC classification number: H04B1/0475 , H04B2001/0408
Abstract: An electronic device is provided. The electronic device includes a digital pre-distortion (DPD), a digital-to-analog converter (DAC), a power amplifier (PA), a first coupler obtaining a feedback signal from an output of the power amplifier, a circulator obtaining a reverse signal in which the output of the power amplifier is reflected, a transmission filter, a second coupler obtaining a filter-feedback signal from an output of the transmission filter, an antenna, an analog-to-digital converter (ADC) converting a composite signal including the feedback signal, the filter-feedback signal, and the reverse signal into a digital composite signal, a separation circuit, and a pulse inter-modulation cancellation (PIMC) circuit in which the separation circuit, based on the digital composite signal and an input signal of the DPD, obtains a digital signal of the feedback signal, a digital signal of the filter-feedback signal, and a digital signal of the reverse signal.
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公开(公告)号：US20230261615A1
公开(公告)日：2023-08-17
申请号：US18304050
申请日：2023-04-20
Inventor： Seunghoon JEE , Youngoo YANG , Yifei CHEN , Hyunuk KANG , Kyoungtae KIM , Youngyoon WOO , Jaekyung SHIN , Woojin CHOI
CPC classification number: H03F1/0288 , H03F3/24 , H03F3/602 , H03F1/565 , H03F2200/451 , H03F2200/198 , H03F2200/423
Abstract: The disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long-Term Evolution (LTE). A Doherty power amplifier of a wireless communication system is provided. The Doherty power amplifier includes a first power amplifier, a second power amplifier, a first transmission line, a 4-port coupler, and a load impedance, and the 4-port coupler includes a first port, a second port, a third port, and a fourth port, the first power amplifier is coupled with the 4-port coupler through the first port, the second power amplifier is coupled with the 4-port coupler through the fourth port, the load impedance is coupled with the 4-port coupler through the third port, the first transmission line is disposed between the first power amplifier and the first port of the 4-port coupler, and the second port is an output end of the power amplifier.
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