公开(公告)号：US20230141814A1

公开(公告)日：2023-05-11

申请号：US18051752

申请日：2022-11-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chulho Chung ,  Jonghun Han ,  Myeongjin Kim ,  Eunsung Jeon

IPC: H04W40/12 ,  H04W24/08

CPC classification number: H04W40/12 ,  H04W24/08 ,  H04W84/12

Abstract: A wireless communication method performed by a first apparatus may include obtaining back-off counts of a plurality of links, when a back-off count of a first link among the plurality of links is zero, selecting a first or a second transmission method; when the first transmission method is selected, transmitting first data to a second apparatus over the first link, and when the second transmission method is selected, delaying transmission of the first data to the second apparatus until a back-off count of a second link among the plurality of links becomes zero.

公开(公告)号：US20220322215A1

公开(公告)日：2022-10-06

申请号：US17656916

申请日：2022-03-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeongjin Kim ,  Jinmin Kim ,  Wookbong Lee ,  Eunsung Jeon ,  Chulho Chung ,  Jonghun Han

IPC: H04W48/16 ,  H04W28/02 ,  H04L5/00

Abstract: A wireless communication method, by a first apparatus, includes receiving a first Physical Layer Protocol Data Unit (PPDU) from a second apparatus, extracting a first field from a first signal field included in the first PPDU, and identifying the number of symbols in the second signal field included in the first PPDU based on a value of the first field, wherein, when the first field has a first value, the identifying the number of symbols in the second signal field includes identifying that the number of symbols in the second signal field is equal to or greater than a first number.

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：US12301508B2

公开(公告)日：2025-05-13

申请号：US18306617

申请日：2023-04-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeongjin Kim ,  Wookbong Lee ,  Eunsung Jeon ,  Jonghun Han

IPC: H04L5/00 ,  H04W72/0453 ,  H04B7/0452 ,  H04W84/12

Abstract: Provided is a method of wireless communication by a first device, the method including allocating multi-resource unit (MRU) to at least one second device; generating at least one resource unit (RU) allocation sub-field respectively corresponding to at least one sub-channel included in the MRU; and transmitting the at least one RU allocation sub-field to the at least one second device. Generating the at least one RU allocation sub-field may include identifying a first RU including a first sub-channel to indicate a zero user in the MRU; and generating a first RU allocation sub-field corresponding to the first sub-channel based on the first RU.

公开(公告)号：US12231190B2

公开(公告)日：2025-02-18

申请号：US17358386

申请日：2021-06-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eunsung Jeon ,  Myeongjin Kim ,  Wookbong Lee ,  Chulho Chung ,  Jonghun Han

IPC: H04L5/00 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/06 ,  H04W72/04 ,  H04W80/02 ,  H04W84/12

Abstract: A method of a first device communicating with at least one second device in a wireless local area network (WLAN) system includes the first device generating a null data packet announcement (NDPA) frame and transmitting the NDPA frame to the at least one second device. The generating of the NDPA frame includes identifying a protocol version of the at least one second device and the NDPA frame includes an NDPA version subfield generated based on the protocol version.

公开(公告)号：US12224817B2

公开(公告)日：2025-02-11

申请号：US17530047

申请日：2021-11-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Eunsung Jeon ,  Chulho Chung ,  Myeongjin Kim ,  Jonghun Han

IPC: H04B7/0417 ,  H04B7/06 ,  H04L5/00 ,  H04W84/12

Abstract: A method for a first device to communicate with at least one second device in a wireless local area network (WLAN) system includes providing a first trigger frame to at least one second device, the first trigger frame requesting at least one sounding null data packet (NDP), providing a feedback frame to the at least one second device, the feedback frame including feedback information generated based on the at least one sounding NDP, and providing a second trigger frame to the at least one second device, the second trigger frame requesting at least one beamformed physical layer protocol data unit (PPDU), each of the first trigger frame and the feedback frame including a sounding dialog token number field having a sounding sequence number.

公开(公告)号：US20240422754A1

公开(公告)日：2024-12-19

申请号：US18817507

申请日：2024-08-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeongjin Kim ,  Wookbong Lee

IPC: H04W72/0453 ,  H04L5/00 ,  H04W72/23 ,  H04W74/04 ,  H04W84/12

Abstract: A method of communicating, by a first device, with at least one second device in a wireless local area network (WLAN) system includes allocating at least one resource unit (RU) within a bandwidth to a second device; generating at least one subfield defining the at least one RU; generating a trigger frame comprising a user information field comprising the at least one subfield, and transmitting a PPDU including the trigger frame to the at least one second device, wherein the generating comprises setting at least seven bits associated with the at least one RU and setting at least two bits as a value defining a subband that includes the at least one RU when the band width comprises at least four subbands.

公开(公告)号：US11985689B2

公开(公告)日：2024-05-14

申请号：US17188060

申请日：2021-03-01

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeongjin Kim ,  Wook Bong Lee

IPC: H04W72/53 ,  H04W72/0453 ,  H04W72/23 ,  H04W84/12

CPC classification number: H04W72/53 ,  H04W72/0453 ,  H04W72/23 ,  H04W84/12

Abstract: An apparatus and a method for allocating a multiple resource unit (RU) for a user in a wireless local area network (WLAN) system are provided. A transmission device of the WLAN system includes a transceiver that generates a physical layer convergence protocol (PLCP) protocol data unit (PPDU) including a preamble and a payload and transmitting the generated PPDU to at least one receiving device and a processor controlling the transceiver. The preamble includes a plurality of training fields and a plurality of signaling fields. Resource unit (RU) allocation information on the at least one receiving device is included in one of the plurality of signaling fields. The RU allocation information includes a first subfield indicating an arrangement of RUs in a frequency domain corresponding to the PPDU and a second subfield indicating a portion of the RUs to be combined to form a multiple RU.

公开(公告)号：US11979866B2

公开(公告)日：2024-05-07

申请号：US17467742

申请日：2021-09-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eunsung Jeon ,  Wookbong Lee ,  Myeongjin Kim ,  Chulho Chung ,  Jonghun Han

IPC: H04L12/28 ,  H04W72/0453 ,  H04J1/16 ,  H04W84/12

CPC classification number: H04W72/0453 ,  H04W84/12

Abstract: The present disclosure provides a wireless communication method. The wireless communication method includes a first apparatus communicating with at least one second apparatus in a wireless local area network (WLAN) system. The wireless communication method generates an aggregated physical layer protocol data unit (PPDU) including a first null data packet (NDP) based on a first protocol standard and a second NDP based on a second protocol standard and transmits the aggregated PPDU to the at least one second apparatus, wherein the first NDP and the second NDP have a same duration in different frequency bands.

公开(公告)号：US20220345349A1

公开(公告)日：2022-10-27

申请号：US17659603

申请日：2022-04-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeongjin Kim ,  Jinmin Kim ,  Eunsung Jeon ,  Wookbong Lee ,  Chulho Chung ,  Jonghun Han

IPC: H04L27/26 ,  H04J11/00 ,  H04L27/00

Abstract: A second apparatus for wireless communication includes: a transceiver; and a processing circuit configured to receive, from a first apparatus via the transceiver, a physical layer protocol data unit (PPDU) including a first signal field having a fixed length and a second signal field having a variable length. The second signal field includes an orthogonal frequency-division multiplexing (OFDM) symbol block including at least one OFDM symbol, and one or more repetitions of the OFDM symbol block.