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.

公开(公告)号：US20240015715A1

公开(公告)日：2024-01-11

申请号：US18335319

申请日：2023-06-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeongjin Kim ,  Wookbong Lee

IPC: H04W72/0453 ,  H04W72/23

CPC classification number: H04W72/0453 ,  H04W72/23 ,  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：US20220103217A1

公开(公告)日：2022-03-31

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

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：US20220006594A1

公开(公告)日：2022-01-06

申请号：US17358422

申请日：2021-06-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： MYEONGJIN KIM ,  Wookbong Lee ,  Eunsung Jeon ,  Jonghun Han

IPC: H04L5/00 ,  H04W72/04

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：US20240333463A1

公开(公告)日：2024-10-03

申请号：US18616592

申请日：2024-03-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeongjin Kim ,  Wookbong Lee ,  Jinmin Kim ,  Eunsung Jeon

IPC: H04L5/00 ,  H04W72/51 ,  H04W84/12

CPC classification number: H04L5/0064 ,  H04L5/0044 ,  H04W72/51 ,  H04W84/12

Abstract: A wireless communication method of a first device, includes: receiving, from a second device through a channel having a bandwidth of 20 megahertz (MHz), a physical layer protocol data unit (PPDU), based on a non-orthogonal frequency-division multiple access (non-OFDMA); based on values of a plurality of fields being related to resource allocation of the channel and included in a signal field of a preamble included in the PPDU, identifying whether a multi-resource unit (MRU) to replace a resource unit (RU) including a 242-tone is allocated to the first device; and based on a result of the identifying, decoding a payload included in the PPDU.

公开(公告)号：US11696178B2

公开(公告)日：2023-07-04

申请号：US17326644

申请日：2021-05-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Myeongjin Kim ,  Wookbong Lee

IPC: H04W28/06 ,  H04W84/12 ,  H04W72/52 ,  H04W72/0453 ,  H04B7/0452

CPC classification number: H04W28/06 ,  H04B7/0452 ,  H04W72/0453 ,  H04W72/52 ,  H04W84/12

Abstract: A baseband circuit in a transmitting device of a WLAN may include at least one processor configured to generate a PPDU comprising a preamble and a payload. The preamble includes training fields and signaling fields, and the payload includes a data field. A first one of the signaling fields includes a compression mode field indicating whether resource unit (RU) allocation information designated for at least one receiving device is included in a second one of the signaling fields. A binary value of the compression mode field represents whether the RU allocation information is included and size information associated with the RU allocated to the at least one receiving device.

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：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.

公开(公告)号：US12284596B2

公开(公告)日：2025-04-22

申请号：US17675820

申请日：2022-02-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ravi Gidvani ,  Shailender Karmuchi ,  Ashok Ranganath ,  Srinivas Kandala ,  Wookbong Lee ,  Michail Koundourakis

IPC: H04W48/10 ,  H04W48/16

Abstract: A system and method for managing beacon size. In some embodiments, the method includes: transmitting, by an Access Point Station (AP STA) a first beacon; transmitting, by the AP STA, a second beacon indicating feature information; and transmitting, by the AP STA, a first follow-on beacon, the first follow-on beacon supplementing the feature information indicated in the second beacon.

公开(公告)号：US12267821B2

公开(公告)日：2025-04-01

申请号：US17313232

申请日：2021-05-06

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.