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公开(公告)号：US12267881B2
公开(公告)日：2025-04-01
申请号：US17610150
申请日：2020-05-08
Applicant: Hyundai Motor Company , Kia Corporation , Korea National University of Transportation Industry—Academic Cooperation Foundation
Inventor： Yong Ho Kim , Yong Su Gwak
IPC: H04W74/0833 , H04L1/1607 , H04W72/0446 , H04W74/08
Abstract: An operating method of a communication node in a wireless communication network includes: performing a first monitoring operation on a first link and a second link during a preset period; performing a first random backoff operation in the first link for a first random backoff period, if the first link and the second link are in an idle state according to the first monitoring operation; performing, in the second link, a second random backoff operation for a second random backoff period which is different from the first random backoff period in length; and transmitting a frame at a same point in time in the first link and the second link, if the first link is in the idle state according to the first random backoff operation, and if the state of the second link is an idle state according to execution of the second random backoff operation.
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公开(公告)号：US12185154B2
公开(公告)日：2024-12-31
申请号：US17625025
申请日：2020-07-02
Applicant: Hyundai Motor Company , Kia Corporation , Korea National University of Transportation Industry-Academic Cooperation Foundation
Inventor： Yong Ho Kim , Han Seul Hong
Abstract: A multiplex transmission method and apparatus in a multi-link wireless LAN are disclosed. An operating method of a first device comprises the steps of: setting a first link linked with a second device and a first service; setting a second link linked with the second device and a second service; and performing communication with the second device by using the first link and/or the second link. Therefore, the performance of a communication system can be improved.
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公开(公告)号：US20240389149A1
公开(公告)日：2024-11-21
申请号：US18783642
申请日：2024-07-25
Applicant: Hyundai Motor Company , Kia Corporation , Korea National University of Transportation Industry-Academic Cooperation Foundation
Inventor： Yong Ho Kim , Ju Seong Moon
IPC: H04W74/0816 , H04W28/02 , H04W84/12
Abstract: A method and apparatus for low latency communication in a wireless LAN support an enhanced multi-link single radio (eMLSR) operation. A method of operating a station (STA) includes steps of: identifying, by a processor of the station, a restricted target wake time (rTWT) service period (SP) configured by an access point (AP); and receiving, from the AP, a data frame without reception of an initial control frame of the AP within the rTWT SP. A period receivable on multiple spatial streams in a low latency communication service period may be clearly configured, and an eMLSR STA may transmit a frame in the corresponding period. Also, the eMLSR STA may receive the data frame without the reception of the initial control frame of the AP. Accordingly, low latency demands for frame transmission may be satisfied, and the frame may be transmitted at a high speed.
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公开(公告)号：US20240389146A1
公开(公告)日：2024-11-21
申请号：US18670181
申请日：2024-05-21
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION , Korea National University of Transportation Industry-Academic Cooperation Foundation
Inventor： Yong Ho Kim
IPC: H04W74/0816 , H04L1/08 , H04W24/08 , H04W74/0833
Abstract: In a method and apparatus for recovery from a transmission error in a communication system, the method for a first device includes the steps of: configuring a TXOP; transmitting, within the TXOP in a first link, a first data frame to a second device; transmitting, within the TXOP in a second link, a second data frame to the second device; performing, in the first link, a monitoring operation for receiving a first reception response frame for the first data frame during a preset time from a point in time of the end of transmission of the first data frame; and if the first reception response frame is not received, determining, by considering a state of the second link, whether or not to perform a retransmission operation for the first data frame.
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公开(公告)号：US20240205983A1
公开(公告)日：2024-06-20
申请号：US18543886
申请日：2023-12-18
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION , Korea National University of Transportation Industry-Academic Cooperation Foundation
Inventor： Yong Ho Kim
IPC: H04W74/0833 , H04W76/20 , H04W84/12
CPC classification number: H04W74/085 , H04W76/20 , H04W84/12
Abstract: In a method and device for transmitting and receiving a frame in consideration of the length of data in a communication system supporting multiple links, the method of a first device includes the steps of: receiving a first frame from a second device in a first TXOP on a first link; receiving a second frame from the second device in a second TXOP on a second link; performing a first backoff operation for transmitting a first reception response frame for the first frame on the first link; and “when the first backoff operation is completed and the reception of the second frame is completed”, transmitting the first reception response frame to the second device on the first link.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240089785A1
公开(公告)日：2024-03-14
申请号：US18272320
申请日：2022-01-11
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION , KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Yong Ho Kim , Ju Seong Moon
CPC classification number: H04W28/0263 , H04W52/0216 , H04W76/11 , H04W76/15
Abstract: A method and a device for receiving downlink traffic in a communication system supporting multiple links are disclosed. An operation method of a first device includes the steps of: transmitting a traffic indication map (TIM) through a first link from among multiple links; transmitting, through the first link, first information for indicating one or more links through which a data unit stored in the first device is transmitted; and using the one or more links indicated by the first information, so as to transmit the data unit to a second device indicated by the TIM.
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公开(公告)号：US20240073952A1
公开(公告)日：2024-02-29
申请号：US18377558
申请日：2023-10-06
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION , Korea National University of Transportation Industry-Academic Cooperation Foundation
Inventor： Yong Ho Kim
IPC: H04W74/08
CPC classification number: H04W74/0816 , H04W84/12
Abstract: In a method and a device for a MLSR operation in a wireless LAN, an operation method of a first device includes the steps of: performing first communication with a second device in a first link; performing a listening operation in one or more links after the end of the first communication; and starting a delay timer in a second link from among one or more links, wherein the first device does not initiate a frame transmission operation in the second link during the time corresponding to the delay timer.
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公开(公告)号：US11700718B2
公开(公告)日：2023-07-11
申请号：US17098657
申请日：2020-11-16
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION , KOREA NATIONAL UNIVERSITY OF TRANSPORTATION Industry-Academic Cooperation Foundation
Inventor： Hyung Suk Kim , Eun Soo Lim , Ji Eun Yoo , Young Min Kang
CPC classification number: H05K9/0081 , C01G51/70 , C08K3/04 , C08K3/22 , C01P2002/50 , C01P2002/76 , C08K2003/2237 , C08K2003/2265 , C08K2003/2289 , C08K2201/014 , H01F1/348
Abstract: An electromagnetic wave absorbing particle has a composition, which is represented by Formula 1 of Sr1-xRxFey-2zM2zOa and contains M-type hexaferrite as a main phase. In Formula 1, R is one or more substances selected from among Ba, Ca, and La, M is one or more substances selected from among Co, Ti, and Zr, 0
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9.发明公开公开(公告)号：US20230156795A1
公开(公告)日：2023-05-18
申请号：US17916406
申请日：2021-04-02
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KOREA NATIONAL UNIVERSITY OF TRANSPORTATION INDUSTRY-ACADEMIC COOPERATION FOUNDATION
Inventor： Sung Hyun HWANG , Kyu Min KANG , Jae Cheol PARK , Jin Hyung OH , Dong Woo LIM , Su Na CHOI , Yong Ho KIM , Han Seul HONG
IPC: H04W74/08
CPC classification number: H04W74/0816 , H04W84/12
Abstract: Disclosed are a method and apparatus for transmitting and receiving data in a communication system supporting multiple links. A method for operation of a first device comprises the steps of: transmitting, in a first link from among multiple links, a first RTS frame to a second device; receiving, from the second device in the first link, a first CTS frame that is a response to the first RTS frame; when the first CTS frame is received, transmitting, in the first link, a first data frame to the second device; and transmitting, in a second link during transmission of the first data frame, a second RTS frame to the second device.
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公开(公告)号：US20220147744A1
公开(公告)日：2022-05-12
申请号：US17344287
申请日：2021-06-10
Applicant: HYUNDAI MOTOR COMPANY , KIA Corporation , KOREA NATIONAL UNIVERSITY OF TRANSPORTATION Industry-Academic Cooperation Foundation
Inventor： Dae-Sung HWANG , Jun-Ho PARK , Jae-Kyu SUHR , Youn-Joo LEE , Ho-Gi JUNG
Abstract: An apparatus for recognizing a driving lane based on multiple sensors is provided. The apparatus includes a first sensor configured to calculate road information, a second sensor configured to calculate moving obstacle information, a third sensor configured to calculate movement information of a vehicle, and a controller configured to remove the moving obstacle information from the road information to extract only road boundary data, accumulate the road boundary data to calculate a plurality of candidate location information on the vehicle based on the movement information, and select final candidate location information from the plurality of candidate location information.
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