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：US20180167123A1

公开(公告)日：2018-06-14

申请号：US15447899

申请日：2017-03-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongbing CHENG ,  Ruchen DUAN ,  Jungwon LEE

IPC: H04B7/06 ,  H04L5/00 ,  H04L1/00

CPC classification number: H04L1/0054 ,  H04L5/006 ,  H04L25/0224 ,  H04L25/024 ,  H04L25/067

Abstract: A method and apparatus are provided. The method includes receiving, by a user equipment (UE), a first signal from a transceiver, determining one of a probability and a soft mean with a soft variance associated with the detected data symbol, determining a first coefficient and a second coefficient based on the determined one of the probability and the soft mean with the soft variance associated with the detected data symbol, determining channel state information (CSI) on a channel between the transceiver and the UE based on a second signal received by the UE from the transceiver, a previous CSI, the first coefficient and the second coefficient, and tracking the communication channel based on the determined CSI.

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：US20220209839A1

公开(公告)日：2022-06-30

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：US20200162132A1

公开(公告)日：2020-05-21

申请号：US16256328

申请日：2019-01-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hongbing CHENG ,  Hyukjoon KWON ,  Qi ZHAN ,  Kee-Bong SONG

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

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：US20220400419A1

公开(公告)日：2022-12-15

申请号：US17728340

申请日：2022-04-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Mirette SADEK ,  Hongbing CHENG ,  Jung Hyun BAE

IPC: H04W36/00 ,  H04W4/029 ,  H04W4/33 ,  H04B17/318 ,  G06N3/04

Abstract: Disclosed is a method for determining whether to trigger of a conditional handover, including estimating, using a line-of-sight (LoS) channel, a received signal power as a function of a blocker used to simulate a human body, determining multiple stages of potential blockage of the received signal power by the blocker, predicting, using long-short-term memory (LTSM), a channel state and the potential blockage, and determining whether to trigger the conditional handover based on the predicted channel state and potential blockage.

公开(公告)号：US20180192310A1

公开(公告)日：2018-07-05

申请号：US15455979

申请日：2017-03-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Binnan ZHUANG ,  Hongbing CHENG ,  Jungwon LEE

IPC: H04W24/08 ,  H04B7/06 ,  H04L27/26 ,  H04B17/345

CPC classification number: H04B17/345 ,  H04B7/0626 ,  H04B17/309 ,  H04L25/067 ,  H04L27/2657 ,  H04L27/2675 ,  H04L27/2679

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：US20180115351A1

公开(公告)日：2018-04-26

申请号：US15453553

申请日：2017-03-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Federico PENNA ,  Hongbing CHENG ,  Jungwon LEE

IPC: H04B7/0456 ,  H04L25/03

CPC classification number: H04B7/0456 ,  H04B7/0469 ,  H04L25/03949

Abstract: An apparatus and a method. The apparatus includes a singular value decomposition (SVD) processor configured to receive a channel matrix H and output samples y of an optimal precoding matrix for H; a linear phase estimation (LPE) processor connected to the SVD processor and configured to determine a phase estimate {circumflex over (θ)}l of an angle θl of a horizontal discrete Fourier transform (DFT) index l, where l is an integer; and a decision processor connected to the LPE processor and configured to determine a hard estimate of l.

公开(公告)号：US20240267262A1

公开(公告)日：2024-08-08

申请号：US18141178

申请日：2023-04-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Federico PENNA ,  Hongbing CHENG

IPC: H04L25/02

CPC classification number: H04L25/0236 ,  H04L25/0214 ,  H04L25/0222

Abstract: A system and a method are disclosed for performing data-aided channel tracking for a subcarrier, including obtaining a reference channel estimate (CE) at a first time instance using a reference signal; determining, based on the obtained reference CE and based on received data symbols, a data-aided CE at a second time instance that is subsequent to the first time instance; and sequentially determining one or more additional data-aided CEs, for one or more time instances subsequent to the second time instance, based on a data-aided CE obtained at a previous time instance and based on the received data symbols.

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.