公开(公告)号：US20230354273A1

公开(公告)日：2023-11-02

申请号：US17923573

申请日：2021-05-06

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geonjung KO ,  Juhyung SON ,  Sanghyun KIM ,  Jinsam KWAK

IPC: H04W72/04 ,  H04L1/00

CPC classification number: H04W72/04 ,  H04L1/0061

Abstract: Disclosed is a method for receiving a physical layer protocol data unit (PPDU) in a wireless communication system. A terminal receives, from an access point (AP), an extremely high throughput (EHT) PPDU comprising at least one EHT-signal (SIG) content channel. Each of the at least one EHT-SIG content channel comprises a user-specific field and a common field comprising at least one first resource unit (RU) allocation subfield. An STA then identifies whether the common field further comprises at least one second RU allocation subfield, and can decode the PPDU on the basis of whether the common field further comprises the at least one second RU allocation subfield.

公开(公告)号：US20230345535A1

公开(公告)日：2023-10-26

申请号：US18218328

申请日：2023-07-05

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Sanghyun KIM ,  Geonjung KO ,  Juhyung SON ,  Hanseul HONG ,  Jinsam KWAK

IPC: H04W74/08

CPC classification number: H04W74/0816 ,  H04W74/0866

Abstract: Disclosed is a wireless communication terminal wirelessly communicating with a base wireless communication terminal. The wireless communication terminal comprises: a transceiver; and a processor. The processor transmits low latency traffic configured as traffic for low latency transmission in a limited service period, or a response to the low latency traffic, and in the limited service period, transmission except for the transmission of the low latency traffic and the transmission of the response to the low latency traffic is limited.

公开(公告)号：US20230319884A1

公开(公告)日：2023-10-05

申请号：US18013634

申请日：2021-06-30

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geonjung KO ,  Sanghyun KIM ,  Juhyung SON ,  Jinsam KWAK

IPC: H04W74/08 ,  H04W72/1263

CPC classification number: H04W74/0816 ,  H04W74/0875 ,  H04W72/1263

Abstract: A multi-link device using a plurality of links is disclosed. A processor receives, in any one link of the plurality of links, a first physical layer protocol data unit (PPDU) including access category (AC) constraint signaling and a reverse direction (RD) grant from a station which is a transmission opportunity (TXOP) holder or a service period (SP) source, and transmits, in the any one link, a second PPDU to the station in response to the first PPDU on the basis of the AC constraint signaling. The AC constraint signaling indicates whether a traffic identifier (TID) or AC of a frame included in the second PPDU is constrained.

公开(公告)号：US20230308676A1

公开(公告)日：2023-09-28

申请号：US18328246

申请日：2023-06-02

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geonjung KO ,  Dongcheol KIM ,  Juhyung SON ,  Jaehong JUNG ,  Jinsam KWAK

IPC: H04N19/513 ,  H04N19/53 ,  H04N19/57

CPC classification number: H04N19/513 ,  H04N19/53 ,  H04N19/57

Abstract: A video signal decoding device comprising a processor, wherein the processor is configured to: obtain reference samples corresponding to a first side of a current block and reference samples corresponding to a second side of the current block, obtain a direct current (DC) value for prediction of the current block based on a reference sample set comprising at least some of the reference samples corresponding to the first side and the reference samples corresponding to the second side, and reconstruct the current block based on the DC value.

公开(公告)号：US20230292222A1

公开(公告)日：2023-09-14

申请号：US18199370

申请日：2023-05-19

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  SK TELECOM CO., LTD.

Inventor： Geonjung KO ,  Juhyung SON ,  Jinsam KWAK ,  Woojin AHN

IPC: H04W48/08 ,  H04W74/00 ,  H04L12/46 ,  H04W48/16 ,  H04W88/08

CPC classification number: H04W48/08 ,  H04W74/006 ,  H04L12/462 ,  H04W48/16 ,  H04W88/085 ,  H04W84/12

Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The processor is configured to receive a frame through the transceiver, determine whether the frame is classified into an Intra-Basic Service Set (BSS) frame or an Inter-BSS frame according to a BSS from which the frame is transmitted, and access a channel according to whether the frame is an Intra-BSS frame or an Inter-BSS frame.

公开(公告)号：US20230262768A1

公开(公告)日：2023-08-17

申请号：US18132367

申请日：2023-04-08

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Geonjung KO ,  Juhyung SON ,  Sanghyun KIM ,  Hanseul HONG ,  Jinsam KWAK

IPC: H04W74/08 ,  H04W74/04

CPC classification number: H04W74/0816 ,  H04W74/04

Abstract: Disclosed is a method for transmitting a frame of a wireless communication system. A non-AP STA receives a beacon frame comprising a request type field from an AP and can receive a downlink frame or transmit an uplink frame in accordance with a specific field value included in the beacon frame. Here, the request type field comprises a specific field for indicating a target wake time (TWT) for a low latency operation, and, if the value of the specific field is set as a first specific value, a broadcast TWT service period (SP) is a TWT SP for the low latency operation.

公开(公告)号：US20230199551A1

公开(公告)日：2023-06-22

申请号：US18109251

申请日：2023-02-13

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Sanghyun KIM ,  Geonjung KO ,  Juhyung SON ,  Jinsam KWAK

IPC: H04W28/02

CPC classification number: H04W28/0263 ,  H04W28/0268

Abstract: Disclosed is a method by which a multi-link device (MLD) of a wireless communication system transmits a frame. The MLD transmits a request frame for mapping between a traffic identifier (TID) and a link, and the request frame can include: first mapping information for establishing a mapping relationship between one or more TIDs from among a plurality of TIDs and one or more links; and information related to the number of the one or more TIDs for which mapping with the one or more links is requested. Thereafter, the MLD can receive a response frame in response to the request frame, and first remaining TIDs that exclude the one or more TIDs from among the plurality of TIDs maintain, to be valid, a previously established mapping relationship with a link, or a default mapping relationship is applied, and, for the first remaining TIDs, a mapping relationship with a specific link may not be indicated by the first mapping information.

公开(公告)号：US20230055688A1

公开(公告)日：2023-02-23

申请号：US17979771

申请日：2022-11-03

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  SK TELECOM CO., LTD.

Inventor： Jinsam KWAK ,  Juhyung SON ,  Geonjung KO

IPC: H04L5/00 ,  H04L27/26 ,  H04L27/18

Abstract: The present invention relates to a wireless communication method for suggesting a packet preamble structure for efficient communication in a wireless communication environment in which a legacy terminal and a non-legacy terminal are mixed, and a wireless communication terminal using the same.
For this, the present invention provides a wireless communication method including: generating a packet including a first preamble and a second preamble, wherein a first symbol and a second symbol of the second preamble are modulated using binary phase shift keying (BPSK); and transmitting the generated packet and a wireless communication terminal using the same.

公开(公告)号：US20220361245A1

公开(公告)日：2022-11-10

申请号：US17873148

申请日：2022-07-26

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC ,  ST TELECOM CO, LTD.

Inventor： Woojin AHN ,  Juhyung SON ,  Jinsam KWAK ,  Geonjung KO

IPC: H04W74/08 ,  H04W84/12

Abstract: Provided are a wireless communication terminal including: a processor; and a communication unit, wherein the processor obtains a backoff counter for an OFDMA-based random access of the terminal, wherein the backoff counter is obtained within a range of a contention window for the uplink OFDMA-based random access, receives a trigger frame indicating an uplink multi-user transmission, when one or more resource unit(s) in which random access can be performed is indicated by the trigger frame, decrements the backoff counter based on a number of resource units(s) in which random access can be performed, and when the backoff counter is 0 or decremented to 0, performs an uplink multi-user transmission through a selected resource unit among the resource units(s) and a wireless communication method using the same.

公开(公告)号：US20220360786A1

公开(公告)日：2022-11-10

申请号：US17870809

申请日：2022-07-21

Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

Inventor： Dongcheol KIM ,  Geonjung KO ,  Jaehong JUNG ,  Juhyung SON ,  Jinsam KWAK

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186

Abstract: The video signal processing method comprises the steps of: downsampling luma components of reconstructed blocks adjacent to a current block; acquiring a maximum luma value from among the downsampled luma components based on a first index; acquiring a next-highest maximum luma value from among the downsampled luma components based on a second index; acquiring a maximum average luma value based on an average value of the maximum luma value and the next-highest maximum luma value; acquiring a next-lowest minimum luma value from among the downsampled luma components based on a third index; acquiring a minimum luma value from among the downsampled luma components based on a fourth index; and acquiring a minimum average luma value based on the next-lowest minimum luma value and the minimum luma value.