公开(公告)号：US20250158852A1

公开(公告)日：2025-05-15

申请号：US18929939

申请日：2024-10-29

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eunsung Jeon ,  Myeongjin Kim ,  Jungwoon Lee

IPC: H04L25/02 ,  H04B7/0417 ,  H04B17/336 ,  H04W84/12

Abstract: An operating method of a first apparatus, communicating with a second apparatus in a wireless local area network (WLAN) system including the first apparatus and the second apparatus, includes receiving a null data packet (NDP) from the second apparatus, estimating channels corresponding to a plurality of streams of each of a plurality of subcarriers by using the NDP, decomposing singular values of the estimated channels to generate beam steering matrixes corresponding to the plurality of streams of each of the plurality of subcarriers, performing, by stream units, cross correlation between beam steering matrixes corresponding to an adjacent subcarrier of the plurality of subcarriers, determining interpolation target subcarriers, based on cross correlation values corresponding to the plurality of streams of each of the plurality of subcarriers, and generating beamforming feedback, based on the determined interpolation target subcarriers.

公开(公告)号：US20250062842A1

公开(公告)日：2025-02-20

申请号：US18804134

申请日：2024-08-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eunhye Park ,  Jinmin Kim ,  Jungwoon Lee ,  Sukjin Jung

IPC: H04B17/309 ,  H04L5/00 ,  H04L25/02

Abstract: An operating method of a wireless communication device includes: receiving a reference signal transmitted from a second wireless device; calculating a reference noise value based on the reference signal; calculating, by the processor, a noise threshold value based on the reference noise value; receiving a first data signal transmitted from the second wireless device; calculating a data noise value based on the first data signal; comparing, by the processor, the data noise value with the noise threshold value; determining whether interference occurs in a target symbol based on a result of the comparison; adjusting the noise threshold value based on the data noise value when it is determined that the interference has occurred in the target symbol; and receiving a second data signal transmitted from the second wireless device, and using the adjusted noise threshold value in processing the second data signal.