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

IPC: H04B1/04 ,  H03F1/32 ,  H03F3/24

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.

公开(公告)号：US20240397442A1

公开(公告)日：2024-11-28

申请号：US18664562

申请日：2024-05-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dongwook Lee ,  Hyunseok Yu ,  Gangminh Lee ,  Jeongtaek Lee

IPC: H04W52/30 ,  H04W52/42

Abstract: An example electronic device includes a first antenna module, a first transmitter, a first communication processor, a second antenna module, a second transmitter, and a second communication processor. The first communication processor receives a state of the second communication processor, sets a first allocated total exposure ratio (TER) value based on a state of the first communication processor and the state of the second communication processor, sets transmission limit power of each antenna of a plurality of antennas included in the first antenna module based on the first allocated TER value, and sets transmit power of each antenna of the plurality of antennas included in the first antenna module based on the transmission limit power.

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.

公开(公告)号：US11425674B2

公开(公告)日：2022-08-23

申请号：US16795897

申请日：2020-02-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joontae Kim ,  Kiil Kim ,  Hyunseok Yu

IPC: H04W56/00 ,  H04W24/10 ,  H04B17/318 ,  H04B17/336 ,  H04W72/04

Abstract: A method of operating a wireless communication device for correcting an offset between a base station and the wireless communication device includes determining whether to perform offset correction using a first target synchronization signal block (SSB) to generate a determination result in response to changing a selected reception beam from a first reception beam to a second reception beam in an SSB period, the first target SSB being received via the second reception beam, and performing the offset correction on the second reception beam using at least one first neighbor SSB based on the determination result, the at least one first neighbor SSB being received via the first reception beam.

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

IPC: H04B1/04 ,  H03F1/32 ,  H03F3/24

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.

公开(公告)号：US11129115B2

公开(公告)日：2021-09-21

申请号：US16582676

申请日：2019-09-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunseok Yu ,  Daeyoung Kim

IPC: H04W52/38 ,  H04W24/08 ,  H04W72/04 ,  H04W72/08 ,  H04W76/15 ,  H04B7/0404

Abstract: A signal processing apparatus for controlling exposure to wireless communication includes processing circuitry configured to control transmission through a first antenna module based on a reflection coefficient of a second antenna module, the first antenna module configured for wireless communication in a first frequency band, the second antenna module configured for wireless communication in a second frequency band, the second frequency band being a lower frequency band than the first frequency band.

公开(公告)号：US12028132B2

公开(公告)日：2024-07-02

申请号：US17978559

申请日：2022-11-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byongok Lee ,  Joohyun Do ,  Hyunseok Yu

IPC: H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0456 ,  H04B7/0617 ,  H04B7/0634

Abstract: An operating method of a wireless communication device includes calculating an effective channel matrix between the wireless communication device and a base station based on transmission characteristic information and channel information, the transmission characteristic information corresponding to the wireless communication device, and the channel information corresponding to a channel between the wireless communication device and the base station, determining a precoding matrix based on the effective channel matrix, and determining a transmission beamforming vector based on the precoding matrix.

公开(公告)号：US11924783B2

公开(公告)日：2024-03-05

申请号：US17412544

申请日：2021-08-26

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunseok Yu ,  Daeyoung Kim

IPC: H04W24/08 ,  H04B7/0404 ,  H04W52/38 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/08 ,  H04W72/542 ,  H04W76/15

CPC classification number: H04W52/38 ,  H04B7/0404 ,  H04W24/08 ,  H04W72/0453 ,  H04W72/542 ,  H04W76/15

Abstract: A signal processing apparatus for controlling exposure to wireless communication includes processing circuitry configured to control transmission through a first antenna module based on a reflection coefficient of a second antenna module, the first antenna module configured for wireless communication in a first frequency band, the second antenna module configured for wireless communication in a second frequency band, the second frequency band being a lower frequency band than the first frequency band.

公开(公告)号：US20230292255A1

公开(公告)日：2023-09-14

申请号：US18179664

申请日：2023-03-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Gangminh Lee ,  Hyunseok Yu

IPC: H04W52/30

CPC classification number: H04W52/30

Abstract: An electronic device includes a plurality of antennas, a transmitter configured to be selectively connected to at least one antenna of the plurality of antennas, and a controller configured to set a transmit power limit of the transmitter. The controller is further configured to calculate a residual total exposure ratio (TER) value for a TER measurement period based on transmit power of the transmitter output through the at least one antenna, set a power control mode of the electronic device, based on a comparison between the residual TER value and a first reference TER value, and set the transmit power limit for a target window based on the power control mode.

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

IPC: H04K1/02 ,  H04L25/03 ,  H04L25/49 ,  H03F1/32 ,  H03F3/24 ,  H04B1/04 ,  H03F3/189

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.