公开(公告)号：US11381284B2

公开(公告)日：2022-07-05

申请号：US17342680

申请日：2021-06-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Minki Ahn ,  Wook Bong Lee ,  Sungsoo Kim ,  Joonsuk Kim ,  Eun Sung Jeon

IPC: H04B7/02 ,  H04B7/0426 ,  H04B7/0456

Abstract: An operation method of a transmitting device such as an access point providing wireless communication includes receiving a feedback of channel response information from an external communication device, generating a beam steering matrix based on the channel response information, generating a power allocation matrix based on an average SNR for each of a plurality of streams included in the channel response information, and performing beamforming on the external communication device based on the generated power allocation matrix and the generated beam steering matrix. The channel response information is a compressed beamforming feedback of multiple input multiple output single user beamforming. A first power allocated to a first stream, of which an average SNR is a first value, from among the plurality of streams is larger than a second power allocated to a second stream, of which an average SNR is a second value greater than the first value.

公开(公告)号：US11245455B2

公开(公告)日：2022-02-08

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：US10979122B2

公开(公告)日：2021-04-13

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 ,  H04B17/336 ,  H04W16/28

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.