公开(公告)号：US11456765B2

公开(公告)日：2022-09-27

申请号：US17209754

申请日：2021-03-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Joontae Kim ,  Gangminh Lee ,  Daeyoung Kim

IPC: H04L5/12 ,  H04B1/10 ,  H04B1/04 ,  H04B15/04

Abstract: A wireless communication device includes a transmission radio frequency (RF) chain configured to transmit a radio signal, and processing circuitry configured to cause the wireless communication device to detect that the transmission RF chain has transited from an inactive state to a first active state, determine whether to detect an updated value of a phase of a self-interference signal in response to detecting that the transmission RF chain has transited from the inactive state to the first active state, and modify a weight vector of an adaptive filter corresponding to the self-interference signal based on the updated value of the phase or a previous value of the phase.

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：US20240154294A1

公开(公告)日：2024-05-09

申请号：US18383189

申请日：2023-10-24

Applicant: Samsung Electronics Co., Ltd.

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

IPC: H01Q1/22 ,  H01Q21/29

CPC classification number: H01Q1/225 ,  H01Q1/2225 ,  H01Q21/293

Abstract: According to an aspect of the inventive concept, an electronic device includes a transmitter including a plurality of antennas, and a communication processor for calculating a total exposure ratio (TER) value of each of the plurality of antennas, wherein the communication processor includes an antenna index buffer for storing a used antenna index, which is an index of one or more used antennas from among the plurality of antennas used in each window, a used power buffer for storing used power of an antenna corresponding to the used antenna index, and a controller configured to calculate the TER value based on the used antenna index, the used power, and an influence matrix.

公开(公告)号：US11849309B2

公开(公告)日：2023-12-19

申请号：US17530885

申请日：2021-11-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunseok Yu ,  Gangminh Lee

IPC: H04W52/20 ,  H04W52/24 ,  H04W52/36

CPC classification number: H04W52/245 ,  H04W52/367

Abstract: A method of controlling transmission power of a wireless communication device includes obtaining first electromagnetic wave information from the wireless communication device, the first electromagnetic wave information being obtained during a target duration, obtaining electromagnetic wave tendency information in the target duration based on the first electromagnetic wave information and second electromagnetic wave information, the second electromagnetic wave information being obtained during at least one previous duration, and controlling the transmission power based on the electromagnetic wave tendency information.

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.