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.

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.

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.

公开(公告)号：US20190140749A1

公开(公告)日：2019-05-09

申请号：US16093099

申请日：2017-04-11

Applicant: Samsung Electronics Co., Ltd

Inventor： Jaebum KIM ,  Jungwoo KU

IPC: H04B15/00 ,  H04B15/02 ,  H04B17/12 ,  H04B1/10

CPC classification number: H04B15/005 ,  H04B1/1018 ,  H04B1/123 ,  H04B1/525 ,  H04B15/02 ,  H04B17/12 ,  H04B2001/0408

Abstract: A base station for cancelling a transmitter noise present in a reception band, according to the embodiment of the present invention comprises: a transmitting and receiving unit for transmitting and receiving a signal; an uplink signal detector for detecting a first signal extracted from a reception path of the base station and a second signal extracted by filtering, on the basis of the reception band, a signal transmitted on a transmission path of the base station, and for determining, on the basis of the detection result, whether an uplink signal transmitted from a terminal is included in the first signal; and a processor for determining whether to cancel the transmitter noise depending on whether the uplink signal is included in the first signal.