公开(公告)号：US20200162137A1

公开(公告)日：2020-05-21

申请号：US16256301

申请日：2019-01-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Qi Zhan ,  Hongbing Cheng ,  Kee-Bong Song

IPC: H04B7/0456 ,  H04L27/26 ,  H04B7/0417 ,  H04B7/06

Abstract: A method and system for selecting precoding matrix index are herein disclosed. The method includes determining a precoder and candidate beams, selecting base beams based on a correlation power between the determined precoder and determined candidate beams, and estimating amplitude coefficients and cophase coefficients based on a correlation between the determined precoder and the selected base beams.

公开(公告)号：US10256929B2

公开(公告)日：2019-04-09

申请号：US15455979

申请日：2017-03-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Binnan Zhuang ,  Hongbing Cheng ,  Jungwon Lee

IPC: H04B17/309 ,  H04L27/26 ,  H04L25/06 ,  H04B17/345 ,  H04B7/06

Abstract: A method and apparatus are provided. The method includes receiving, by at least one antenna of a receiver, at least one signal from a transceiver, detecting at least one data symbol within the at least one signal, determining a probability associated with the at least one detected data symbol, determining channel state information (CSI) of at least one channel between the transceiver and the at least one antenna of the receiver, and estimating a common phase error (CPE) of the at least one signal based on the probabilities associated with the at least one detected data symbol and the CSI of the at least one channel.

公开(公告)号：US10044403B1

公开(公告)日：2018-08-07

申请号：US15666275

申请日：2017-08-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Bemini Hennadige Janath Peiris ,  Hongbing Cheng ,  Jungwon Lee

IPC: H04B1/00 ,  H04B1/709 ,  H04B1/7073 ,  H04B7/0413

Abstract: An apparatus, a method, a method of manufacturing and apparatus, and a method of constructing an integrated circuit are provided. The apparatus includes a correlator; a buffer connected to the correlator, including a plurality of buffer components; a combiner array, including a plurality of combiners, wherein each of the plurality of combiners includes a plurality of buses, wherein each bus is connected to one buffer component corresponding to a synchronization signal block for each synchronization signal block; and a selector connected to each of the plurality of combiners, where the selector is configured to apply a pre-determined function to the plurality of combiners corresponding to the synchronization signal blocks, determine a maximum of applying the pre-determined function, and determine that a primary spreading sequence (PSS) is detected at a time corresponding to a time associated with the maximum of applying the pre-determined function.

公开(公告)号：US12261667B2

公开(公告)日：2025-03-25

申请号：US17700264

申请日：2022-03-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongbing Cheng ,  Federico Penna

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

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：US12119917B2

公开(公告)日：2024-10-15

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

CPC classification number: H04B7/086 ,  H04B7/0456 ,  H04B7/0617 ,  H04B7/0695

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：US11539424B2

公开(公告)日：2022-12-27

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 ,  H04B7/06 ,  H04B7/0456

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：US11452058B2

公开(公告)日：2022-09-20

申请号：US16258069

申请日：2019-01-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Bemini Hennadige Janath Peiris ,  Hongbing Cheng ,  Kee-Bong Song

IPC: H04W56/00 ,  H04B1/709 ,  H04J11/00 ,  H04L1/18 ,  H04L5/00 ,  H04L27/26

Abstract: An apparatus is provided. The apparatus includes a processor configured to receive a synchronization signal (SS) and identify timing of the SS based on a primary spreading signal (PSS) in the SS, identify tentative secondary spreading signals (SSSs) based on the identified timing, and group the tentative SSSs; a register configured to receive the SS; and a memory configured to store the tentative SSSs for each group of the tentative SSSs; wherein the processor is further configured to cross correlate the tentative SSSs, combine cross correlated outputs with weights by group, determine an SSS as the tentative SSS with a maximum combined cross correlation outputs, and determine a cell identification based on the determined SSS.

公开(公告)号：US20220247091A1

公开(公告)日：2022-08-04

申请号：US17710072

申请日：2022-03-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jang Wook Moon ,  Hongbing Cheng ,  Kee-Bong Song

IPC: H01Q21/20 ,  H01Q9/04

Abstract: A first antenna array includes antenna panels including: first antenna panels arranged on a first circle having a first radius, each of the first antenna panels including antenna elements; and second antenna panels arranged on a second circle having a second radius, each of the second antenna panels including antenna elements, the second circle being concentric with the first circle at a center point, the second antenna panels being arranged at a first angle around the center point with respect to the first antenna panels, the first radius, the second radius, and the first angle being computed in accordance with wireless transmission conditions including: a line-of-sight distance to a second antenna array including third antenna panels arranged on two or more circles; and a carrier frequency of a line-of-sight wireless transmission between the first antenna array and the second antenna array.

公开(公告)号：US11374796B2

公开(公告)日：2022-06-28

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：US11159208B1

公开(公告)日：2021-10-26

申请号：US17030904

申请日：2020-09-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yanru Tang ,  Hongbing Cheng ,  Qi Zhan

IPC: H04L5/12 ,  H04L23/02 ,  H04B7/0426 ,  H04B7/0456

Abstract: Disclosed is an apparatus and a method of deriving an optimal precoder, in which a precoder is derived using water filling power allocation, and then is multiplied with some unitary matrix satisfying certain conditions to meet a per layer power constraint. Since the multiplication with the unitary matrix does not change the capacity, the derived precoder is optimal in achieving maximum capacity in a multiple input multiple output (MIMO) wireless communication scheme.