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    Apparatus and method of non-iterative singular-value decomposition
    1.
    发明授权
    Apparatus and method of non-iterative singular-value decomposition 有权

    公开(公告)号：US10560288B2

    公开(公告)日：2020-02-11

    申请号：US16399298

    申请日：2019-04-30

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Wook Bong Lee ,  Minki Ahn

    IPC: H04L25/02 ,  H04B7/06 ,  G06F17/16 ,  H04B7/0452

    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.

    Wireless communication apparatus for low-complexity beamforming feedback and method of operating the apparatus
    6.
    发明授权
    Wireless communication apparatus for low-complexity beamforming feedback and method of operating the apparatus 有权

    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.

    Wireless communication apparatus for adaptive beamforming and method of operation thereof
    7.
    发明授权
    Wireless communication apparatus for adaptive beamforming and method of operation thereof 有权

    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.

    Access point supporting wireless communication and operation method thereof
    10.
    发明授权
    Access point supporting wireless communication and operation method thereof 有权

    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.

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