公开(公告)号：US20230062458A1

公开(公告)日：2023-03-02

申请号：US17885187

申请日：2022-08-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Vamadevan NAMBOODIRI ,  Wook Bong LEE ,  Donghan KIM ,  Ruchen DUAN ,  Mostafa Sayed Roshdy IBRAHIM

IPC: H04B1/04

Abstract: An electronic device configured to apply, to a first power amplifier (PA) input, one or more updated memory digital pre-distorter (mDPD) coefficient values is provided. The electronic device includes a processor; and a memory including a non-transitory computer readable storage medium storing instructions that, when executed, cause the processor to preload, from values stored in the memory of the electronic device, one or more mDPD coefficient values; transmit a training signal sequence while using the preloaded one or more mDPD coefficient values; receive the training signal sequence; update the one or more mDPD coefficient values based on the transmitted training signal sequence, the received training signal sequence, and the preloaded one or more mDPD coefficient values; and apply the updated one or more mDPD coefficient values to distort the first PA input.

公开(公告)号：US20220248258A1

公开(公告)日：2022-08-04

申请号：US17579520

申请日：2022-01-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ruchen DUAN ,  Wook Bong LEE ,  Srinivas KANDALA ,  Ravi GIDVANI ,  Jonghun HAN ,  Chulho CHUNG ,  Ashok RANGANATH

IPC: H04W28/02 ,  H04L69/22 ,  H04W28/20

Abstract: A system and method for selecting values for Validate and Disregard bits. In some embodiments, the method includes: receiving, by a first wireless station, from a second wireless station, an information element reporting capabilities of the second wireless station; and determining, by the first wireless station, based on the information element, whether to transmit, to the second wireless station, a default value for each of a plurality of Validate bits and for each of a plurality of Disregard bits.

公开(公告)号：US20210281303A1

公开(公告)日：2021-09-09

申请号：US17188135

申请日：2021-03-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eun Sung JEON ,  Wook Bong LEE ,  Min Ki AHN ,  Sung Soo KIM ,  Joon Suk KIM

IPC: H04B7/06

Abstract: A beam transmitting device improves performance of a communication channel. The beam transmitting device includes a controller configured to transmit a null data packet (NDP) and receive channel information; and a smoothing circuit configured to smooth a plurality of beamforming vectors in the channel information. The smoothing circuit includes a weight calculator configured to calculate a common phase factor using two adjacent beamforming vectors among the plurality of beamforming vectors, and a moving average filter configured to perform the smoothing using the common phase factor.

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：US20190372638A1

公开(公告)日：2019-12-05

申请号：US16404281

申请日：2019-05-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Wook Bong LEE ,  Minyoung PARK ,  Tianyu WU

IPC: H04B7/06 ,  H04B7/0426

Abstract: An apparatus for a beamformee and a method are provided. The apparatus includes a first beamforming matrix device configured to generate a first beamforming matrix VWB from a channel H; an equivalent channel device configured to generate an equivalent channel {tilde over (H)}k based on the channel H and the first beamforming matrix VWB, where k is a number that indicates a subcarrier index; a second beamforming matrix device configured to obtain a second beamforming matrix VSC from the equivalent channel {tilde over (H)}k; and a transmitter configured to transmit the first beamforming matrix VWB and the second beamforming matrix VSC.

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.

公开(公告)号：US20220417993A1

公开(公告)日：2022-12-29

申请号：US17902348

申请日：2022-09-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sharan NARIBOLE ,  Srinivas KANDALA ,  Wook Bong LEE ,  Ashok RANGANATH

IPC: H04W74/08 ,  H04L5/00 ,  H04W56/00 ,  H04W84/12

Abstract: Methods and a devices are provided is for receiving simultaneous downlink transmissions at a mobile station (STA). Information regarding whether endings of simultaneous data transmissions to the mobile station are to be aligned is transmitted to an access point (AP). The simultaneous data transmissions are between the AP and the STA over a pair of channels. Reception begins of a first data transmission, from the AP, on a first channel of the pair of channels. Reception begins of a second data transmission, from the AP, on a second channel of the pair of channels. The second data transmission overlaps at least a portion of the first data transmission. Reception of the second data transmission ends upon an end of the first data transmission when the information indicates that the endings of simultaneous downlink data transmissions are to be aligned.