公开(公告)号：US20230077972A1

公开(公告)日：2023-03-16

申请号：US17989332

申请日：2022-11-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yanru TANG ,  Hongbing CHENG ,  Kee-Bong SONG

IPC: H04B7/08 ,  H04B7/0456 ,  H04B7/06

Abstract: A system and method are provided in which an input including a measurement output of digital channel information is received. The digital channel information includes an estimated digital channel, a beamforming codebook, and quantized angle of arrival (AoA) values. A basis corresponding to one of the quantized AoA values is selected according to a largest projection power of the measurement output. A partial channel is recovered based on the beamforming codebook and the estimated digital channel. An analog channel is recovered based on the partial channel and the basis.

公开(公告)号：US20210067232A1

公开(公告)日：2021-03-04

申请号：US16736224

申请日：2020-01-07

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yanru TANG ,  Hongbing CHENG ,  Kee-Bong SONG

IPC: H04B7/08 ,  H04B7/0456 ,  H04B7/06

Abstract: A system and method for providing channel recovery for angle domain sparse channels is herein provided. According to one embodiment, a method includes receiving an input including a measurement output, and recovering analog channels utilizing bases derived from the measurement output.

公开(公告)号：US20220123963A1

公开(公告)日：2022-04-21

申请号：US17139991

申请日：2020-12-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yanru TANG ,  Hongbing CHENG

IPC: H04L25/02 ,  H04B7/0456

Abstract: According to one general aspect, a method may include estimating a combined channel. The method may include estimating a channel correlation based, at least in part upon a measurement of a combined channel for a current beam sweeping interval and a previous beam sweeping interval. The method may include recovering a current channel by employing a compressive sensing-based channel recovery employing estimated channel correlation, a previous measurement, and a current measurement.

公开(公告)号：US20240283411A1

公开(公告)日：2024-08-22

申请号：US18335583

申请日：2023-06-15

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yanru TANG ,  Hou-Shin CHEN ,  Sahana SADAGOPAN ,  Bhupinder SACHDEV ,  Pranav DAYAL

IPC: H03F1/32 ,  H04L27/36 ,  H04W52/08

CPC classification number: H03F1/3258 ,  H04L27/367 ,  H04W52/08 ,  H03F2201/3233

Abstract: Methods and devices are provided in which a processor of a user equipment (UE) combines loop-back signals from a plurality of antenna paths of the UE to generate a combined signal. The loop-back signals are based on a signal transmitted over the antenna paths. The processor determines power amplifier (PA) polynomials based on a comparison of the combined signal to the signal transmitted over the antenna paths. The processor generates a single look-up table (LUT) for the PA polynomials. The processor applies the single LUT to a transmitted signal of the UE to compensate for PA non-linearity

公开(公告)号：US20230353195A1

公开(公告)日：2023-11-02

申请号：US17731251

申请日：2022-04-27

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yanru TANG ,  Pranav DAYAL ,  Hou-Shin CHEN ,  Pritesh VORA ,  Tienyu CHANG ,  Siuchuang Ivan LU ,  Kee-Bong SONG

IPC: H04B7/04 ,  H03F3/24

CPC classification number: H04B7/04 ,  H03F3/245 ,  H04B2001/0416

Abstract: A closed-loop power control (CLPC) system is disclosed that includes a first signal path for a first polarization and a second signal path for a second polarization. The first signal path includes a first power amplifier, a first output power detector configured to detect a first output power level of the first power amplifier, and a first processor configured to determine a first analog gain for a first controller and a first gain for a first digital-to-analog converter based on a first accumulated error between the first output power level and a target Effective Isotropically Radiated Power. A second processor is configured to set a first variable gain of a first variable gain amplifier coupled to an input of the first power amplifier. The CLPC can be configured to control the gain of the first signal path separately or as one signal path.