公开(公告)号：US20220107381A1

公开(公告)日：2022-04-07

申请号：US17199432

申请日：2021-03-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jang Wook MOON ,  Hongbing CHENG ,  Jungwon LEE

IPC: G01S3/60

Abstract: A system and a method are disclosed for estimating antenna misalignments in a line-of-sight wireless communication system and using the estimated antenna misalignments to form an optimal beam that may provide the best performance based on the channel conditions. A receiver determines a rotational estimate and a translational estimate of the receiver with respect to a transmitter, and sends feedback information to the transmitter that is used to determine an optimal beamforming matrix for LOS communications between the receiver and the transmitter. The feedback information includes estimated rotational angles and an estimated translational distance between the receiver and the transmitter, or includes an offset angle between a first plane of antennas of the receiver and a second plane of antennas of the transmitter, a normal vector of the first plane of antennas and the estimated translational distance. The antennas may be antenna arrays or single-element antennas.

公开(公告)号：US20220029684A1

公开(公告)日：2022-01-27

申请号：US17020562

申请日：2020-09-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongbing CHENG ,  Federico PENNA

IPC: H04B7/06 ,  H04L25/02 ,  H04L5/00

Abstract: Methods and systems of obtaining a beamforming matrix, the method comprising inputting PMI feedback from a user equipment (UE), inputting partial channel estimation derived from sounding reference signal (SRS) switching, and composing a precoding matrix using the PMI feedback and partial channel estimation.

公开(公告)号：US20200287600A1

公开(公告)日：2020-09-10

申请号：US16881694

申请日：2020-05-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongbing CHENG ,  Hyukjoon Kwon ,  Qi Zhan ,  Kee-Bong Song

IPC: H04B7/0426 ,  H04B7/06 ,  H04B7/0456

Abstract: A method and system analog beamforming for a single-connected antenna array is herein disclosed. A method includes estimating analog channels on a per-antenna basis, calculating explicitly an analog beamforming matrix based on the estimated analog channels, and performing analog beamforming based on the calculated analog beamforming matrix.

公开(公告)号：US20180123709A1

公开(公告)日：2018-05-03

申请号：US15421998

申请日：2017-02-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Binnan ZHUANG ,  Hongbing CHENG ,  Jungwon LEE

IPC: H04B17/336 ,  H04B17/318

CPC classification number: H04B17/336 ,  H04B17/318

Abstract: A method and apparatus are provided. The method includes receiving a signal sequence and a noise sequence, determining a first absolute value sum approximation of a receive power of the signal sequence, determining a second absolute value sum approximation of a noise power of the noise sequence, and determining a signal-to-noise ratio (SNR) based on the first absolute value sum approximation and the second absolute value sum approximation.