公开(公告)号：US10567091B2

公开(公告)日：2020-02-18

申请号：US16093099

申请日：2017-04-11

Applicant: Samsung Electronics Co., Ltd

Inventor： Jaebum Kim ,  Jungwoo Ku

IPC: H04B15/00 ,  H04B1/12 ,  H04B1/525 ,  H04B17/12 ,  H04B1/10 ,  H04B15/02 ,  H04B1/04

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.

公开(公告)号：US12170535B2

公开(公告)日：2024-12-17

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

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.