公开(公告)号：US20240214017A1

公开(公告)日：2024-06-27

申请号：US18397760

申请日：2023-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minki AHN ,  Sungsoo Kim ,  Jung Woon Lee

IPC: H04B1/12 ,  H04B1/00 ,  H04B1/16

CPC classification number: H04B1/12 ,  H04B1/0096 ,  H04B1/1607

Abstract: A first wireless communication apparatus includes: a transceiver configured to: receive a radio frequency (RF) signal via a channel from a second wireless communication apparatus, and downconvert the RF signal to generate a received signal that has a lower frequency than a frequency of the RF signal; and a processing circuit configured to: compare the received signal with a reference signal to generate a compensation index based on a comparison result, and compensate an initial first arrival path (FAP) time index of the received signal based on the compensation index to generate a final FAP time index.

公开(公告)号：US20210184737A1

公开(公告)日：2021-06-17

申请号：US17025389

申请日：2020-09-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eunsung JEON ,  Minki AHN ,  Sungsoo KIM ,  Joonsuk KIM ,  Jinyong LEE

IPC: H04B7/06 ,  H04L25/02

Abstract: A method of operating a wireless communication apparatus configured to support adaptive beamforming of a base station, the method including receiving a sounding packet from the base station through a plurality of sub-carriers, generating first channel information corresponding to first sub-carriers among the plurality of sub-carriers based on the sounding packet, performing an interpolation operation using the first channel information to generate second channel information corresponding to second sub-carriers among the plurality of sub-carriers, generating first beamforming feedback including the first channel information and the second channel information, and transmitting the first beamforming feedback to the base station.

公开(公告)号：US20200304194A1

公开(公告)日：2020-09-24

申请号：US16825185

申请日：2020-03-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eunsung JEON ,  Wookbong LEE ,  Sungsoo KIM ,  Joonsuk KIM ,  Minki AHN

IPC: H04B7/06 ,  H04W16/28 ,  H04B17/336

Abstract: A method of operating a wireless communication apparatus, the method comprising: estimating a first channel using a sounding packet received from a base station to obtain an estimated first channel, the sounding packet including a plurality of first streams, generating a diagonal matrix and a beam steering matrix by performing singular value decomposition (SVD) on the estimated first channel, generating state information of a plurality of second channels respectively corresponding to a plurality of second streams generated by applying the beam steering matrix to the plurality of first streams using the diagonal matrix, and transmitting beamforming feedback based on the state information to the base station.

公开(公告)号：US20240214090A1

公开(公告)日：2024-06-27

申请号：US18394751

申请日：2023-12-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minki AHN ,  Jinyong LEE ,  Jung Woon LEE

IPC: H04B17/336 ,  H04B1/12

CPC classification number: H04B17/336 ,  H04B1/12

Abstract: The present disclosure provides wireless communication apparatuses for data communication with other wireless communication apparatuses in a wireless communication system. In some embodiments, a first wireless communication apparatus includes a transceiver configured to receive a data signal from a second wireless communication apparatus through a channel, and a processing circuit configured to measure noise, a signal to noise ratio (SNR), and error vector magnitude (EVM) of the data signal, compare the SNR with the EVM, and selectively perform, based on a result of the comparison of the SNR with the EVM, a correction operation on the noise.

公开(公告)号：US20210143863A1

公开(公告)日：2021-05-13

申请号：US17153533

申请日：2021-01-20

Applicant: Samsung Electronics Co., Ltd

Inventor： Mostafa Sayed Roshdy IBRAHIM ,  Ruchen DUAN ,  Wook Bong LEE ,  Minki AHN ,  Hyun Bae JEON

IPC: H04B1/71 ,  H04B17/345 ,  H04B1/10 ,  H04L25/02 ,  H04L25/03

Abstract: A method and system for providing sub-band whitening are herein provided. According to one embodiment, a method estimating an interference whitening (IW) factor based on a legacy-long training field (LLTF) signal, updating the estimated IW factor during transmission of a data symbol, and scaling the data symbol based on the updated IW factor and the estimated IW factor.

公开(公告)号：US20190260613A1

公开(公告)日：2019-08-22

申请号：US16399298

申请日：2019-04-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wook Bong LEE ,  Minki AHN

IPC: H04L25/02 ,  G06F17/16 ,  H04B7/06

Abstract: Method of non-iterative singular-value decomposition (SVD). The method includes receiving, by receiver, a signal; determining, by a channel matrix generator connected to the receiver, a channel matrix for the received signal; reducing, by a singular-value decomposer connected to the channel matrix generator, the dimension of the channel matrix; performing, by the singular-value decomposer, an SVD on the dimension-reduced channel matrix to determine singular vectors and corresponding coefficients that maximize singular values of the singular vectors; and outputting a result of the SVD based on at least one of when the dimension of the dimension-reduced channel matrix is less than or equal to 2 and when two greatest singular values of corresponding singular vectors are determined.