公开(公告)号：US11581964B2

公开(公告)日：2023-02-14

申请号：US17185498

申请日：2021-02-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongmin Choi ,  Haedong Yeon ,  Junse Lee ,  Heesang Noh ,  Changhyun Baek

IPC: H04B17/364 ,  H04B17/354 ,  H04B17/13

Abstract: A method is provided. The method includes estimating adjacent channel leakage ratios respectively corresponding based on a test output signal output from a power amplifier according to a test input signal corresponding to a plurality of frequencies; selecting a test delay value corresponding to a largest value among the estimated adjacent channel leakage ratios; and providing a supply voltage to the power amplifier based on an envelope signal delayed according to the selected test delay value. For each of the plurality of test delay values, a corresponding adjacent channel leakage ratio is estimated based on a ratio of a magnitude of a component included in the test output signal and a magnitude of an inter-modulated component.

公开(公告)号：US20220014287A1

公开(公告)日：2022-01-13

申请号：US17185498

申请日：2021-02-25

Applicant: SAMSUNG ELECTRONICS CO., LTD

Inventor： Hongmin Choi ,  Haedong Yeon ,  Junse Lee ,  Heesang Noh ,  Changhyun Baek

IPC: H04B17/364 ,  H04B17/354 ,  H04B17/13

Abstract: A method is provided. The method includes estimating adjacent channel leakage ratios respectively corresponding based on a test output signal output from a power amplifier according to a test input signal corresponding to a plurality of frequencies; selecting a test delay value corresponding to a largest value among the estimated adjacent channel leakage ratios; and providing a supply voltage to the power amplifier based on an envelope signal delayed according to the selected test delay value. For each of the plurality of test delay values, a corresponding adjacent channel leakage ratio is estimated based on a ratio of a magnitude of a component included in the test output signal and a magnitude of an inter-modulated component.

公开(公告)号：US10826732B2

公开(公告)日：2020-11-03

申请号：US16593480

申请日：2019-10-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daeyoung Kim ,  Changhyun Baek ,  Youngik Cho

IPC: H04K1/02 ,  H04L25/03 ,  H04L25/49 ,  H04L25/08 ,  H04L27/36 ,  H03F3/21 ,  H03F1/32 ,  H03F3/19 ,  H03F1/02

Abstract: A device for controlling spectral regrowth includes a transmission signal processor configured to generate a baseband transmission signal and a controller. The controller is configured to adjust delay of an envelope tracking path that provides a supply voltage to an envelope tracking power amplifier included in a transmission path that generates a radio frequency (RF) transmission signal from the baseband transmission signal. The controller may obtain allocation information of resource blocks included in the RF transmission signal from the transmission signal processor and may determine the delay of the envelope tracking path based on the allocation information.

公开(公告)号：US20200169436A1

公开(公告)日：2020-05-28

申请号：US16593480

申请日：2019-10-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： DAEYOUNG KIM ,  Changhyun Baek ,  Youngik Cho

IPC: H04L25/08 ,  H04L27/36 ,  H03F1/02 ,  H03F1/32 ,  H03F3/19 ,  H03F3/21

Abstract: A device for controlling spectral regrowth includes a transmission signal processor configured to generate a baseband transmission signal and a controller. The controller is configured to adjust delay of an envelope tracking path that provides a supply voltage to an envelope tracking power amplifier included in a transmission path that generates a radio frequency (RF) transmission signal from the baseband transmission signal. The controller may obtain allocation information of resource blocks included in the RF transmission signal from the transmission signal processor and may determine the delay of the envelope tracking path based on the allocation information.