公开(公告)号：US20240137981A1

公开(公告)日：2024-04-25

申请号：US18379943

申请日：2023-10-13

Applicant: Samsung Electronics Co, Ltd. ,  Seoul National University R&DB Foundation

Inventor： Jonghun Han ,  Saewoong Bahk ,  Jongyeon Park

IPC: H04W74/08 ,  H04W16/04 ,  H04W16/10 ,  H04W72/56

CPC classification number: H04W74/0816 ,  H04W16/04 ,  H04W16/10 ,  H04W72/56

Abstract: An operating method of an access point (AP) multi-link device (MLD) is provided. The operating method includes: based on at least one non-AP MLD and at least one single link device (SLD) attempting channel access through a first link of the AP MLD, identifying a contention window of the at least one non-AP MLD, based on a ratio of, with respect to the first link, an idle time of the at least one non-AP MLD to an idle time of the at least one SLD; and transmitting a beacon frame including information about the contention window to the at least one non-AP MLD.

公开(公告)号：US11387877B2

公开(公告)日：2022-07-12

申请号：US17372750

申请日：2021-07-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04B7/06 ,  H04L25/02 ,  H04W84/12

Abstract: A beamformee device includes a channel estimator, first and second beamforming matrix providers and a dimension reduction unit. The channel estimator receives a NDP through a channel, and obtains channel information of the channel based on the NDP. The first beamforming matrix provider provides wideband beamforming matrices based on the channel information. The dimension reduction unit generates equivalent channel information based on the wideband beamforming matrices. The second beamforming matrix provider provides beamforming matrices based on the equivalent channel information. The wideband beamforming matrices and the subcarrier beamforming matrices are fed back to the beamformer device. Any one or any combination of the plurality of wideband beamforming matrices and the plurality of subcarrier beamforming matrices are selected from codebooks.

公开(公告)号：US20210409078A1

公开(公告)日：2021-12-30

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: H04B7/0417 ,  H04B7/06 ,  H04B7/0452 ,  H04W80/02

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：US20240414766A1

公开(公告)日：2024-12-12

申请号：US18807004

申请日：2024-08-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04W74/0816 ,  H04B17/10 ,  H04W16/14 ,  H04W52/24 ,  H04W72/0446

Abstract: The present disclosure provides a wireless communication method. The wireless communication method may be performed by a first apparatus and may include acquiring a transmit opportunity (TXOP) for transmitting a first physical layer protocol data unit (PPDU) with a first transmission power, limiting a second transmission power of a second apparatus for sharing the TXOP with the second apparatus, and transmitting the first PPDU to a third apparatus with the transmission power in the shared TXOP.

公开(公告)号：US12096475B2

公开(公告)日：2024-09-17

申请号：US17401567

申请日：2021-08-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04W74/0816 ,  H04B17/10 ,  H04W16/14 ,  H04W52/24 ,  H04W72/0446

CPC classification number: H04W74/0816 ,  H04B17/103 ,  H04W16/14 ,  H04W52/242 ,  H04W52/243 ,  H04W72/0446

Abstract: The present disclosure provides a wireless communication method. The wireless communication method may be performed by a first apparatus and may include acquiring a transmit opportunity (TXOP) for transmitting a first physical layer protocol data unit (PPDU) with a first transmission power, limiting a second transmission power of a second apparatus for sharing the TXOP with the second apparatus, and transmitting the first PPDU to a third apparatus with the transmission power in the shared TXOP.

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：US11595994B2

公开(公告)日：2023-02-28

申请号：US17347800

申请日：2021-06-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jonghun Han ,  Chulho Chung ,  Sharan Naribole ,  Srinivas Kandala

IPC: H04W74/08 ,  H04W52/24

Abstract: A wireless communication method performed by a first apparatus includes acquiring a transmit opportunity (TXOP) to transmit or receive a first physical layer protocol data unit (PPDU), identifying a second apparatus for sharing the TXOP, permitting at least one of transmission and reception of a second PPDU to the second apparatus in the shared TXOP, and transmitting the first PPDU to at least one third apparatus in the shared TXOP or receiving the first PPDU from the at least one third apparatus.

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：US12250589B2

公开(公告)日：2025-03-11

申请号：US17827262

申请日：2022-05-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

IPC: H04W28/06 ,  H04W84/12

Abstract: A method includes generating a first aggregated physical layer protocol data unit (PPDU) including a first null data packet (NDP) based on an extremely high throughput (EHT) protocol standard and a second NDP based on an EHT+ protocol standard, which is a next generation of the EHT protocol standard, and transmitting the first aggregated PPDU to a second apparatus in a wireless local area network (WLAN) system. Each of the first NDP and the second NDP has a same duration, and the first NDP is transmitted in a first band and the second NDP is transmitted in a second band that is different from the first band.

公开(公告)号：US12149394B2

公开(公告)日：2024-11-19

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.