Patents Assigned to SK Telecom Co., Ltd.
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Patent number: 11943750Abstract: The present invention relates to a wireless communication method and a wireless communication terminal for wideband link setup, and more particularly, a wireless communication method and a wireless communication terminal for increasing data communication efficiency by extending a data transmission bandwidth of a terminal. To this end, provided are a wireless communication method of a terminal, including: obtaining first primary channel information of a basic service set (BSS) with which the terminal is associated; performing clear channel assessment (CCA) for one or more secondary channels of the BSS; and setting a second primary channel among one or more secondary channels determined to be idle based on a result of the CCA, and a wireless communication terminal using the same.Type: GrantFiled: December 31, 2022Date of Patent: March 26, 2024Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Jinsoo Ahn, Yongho Kim, Jinsam Kwak, Juhyung Son
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Patent number: 11930398Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The terminal includes a transceiver, and a processor. The processor is configured to receive an Aggregate-MAC Protocol Data Unit (A-MPDU) from an originator using the transceiver, and when receiving all MPDUs included in the A-MPDU, transmit to the originator a block ACK (BA) frame signaling that all MPDUs included in the A-MPDU are received without a bitmap indicating whether each MPDU included in the A-MPDU is received.Type: GrantFiled: August 3, 2022Date of Patent: March 12, 2024Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Woojin Ahn, Juhyung Son, Jinsam Kwak, Geonjung Ko
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Patent number: 11924473Abstract: Disclosed herein is a method for decoding a video including determining a coding unit to be decoded by block partitioning, decoding prediction syntaxes for the coding unit, the prediction syntaxes including a skip flag indicating whether the coding unit is encoded in a skip mode, after the decoding of the prediction syntaxes, decoding transform syntaxes including a transformation/quantization skip flag and a coding unit cbf, wherein the transformation/quantization skip flag indicates whether inverse transformation, inverse quantization, and at least part of in-loop filterings are skipped, and the coding unit cbf indicates whether all coefficients in a luma block and two chroma blocks constituting the coding unit are zero, and reconstructing the coding unit based on the prediction syntaxes and the transform syntaxes.Type: GrantFiled: June 2, 2022Date of Patent: March 5, 2024Assignee: SK TELECOM CO., LTD.Inventors: Sun Young Lee, Jeong-yeon Lim, Tae Young Na, Gyeong-taek Lee, Jae-seob Shin, Se Hoon Son, Hyo Song Kim
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Patent number: 11924685Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The terminal includes a transceiver, and a processor. The processor is configured to receive an Aggregate-MAC Protocol Data Unit (A-MPDU) from an originator using the transceiver, and when receiving all MPDUs included in the A-MPDU, transmit to the originator a block ACK (BA) frame signaling that all MPDUs included in the A-MPDU are received without a bitmap indicating whether each MPDU included in the A-MPDU is received.Type: GrantFiled: August 3, 2022Date of Patent: March 5, 2024Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Woojin Ahn, Juhyung Son, Jinsam Kwak, Geonjung Ko
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Patent number: 11924453Abstract: A coding tool setting method and a video decoding apparatus using the same are disclosed. An embodiment of the present invention relates to a method for setting whether or not to use a coding tool, and provides a coding tool setting method comprising the steps of: decoding, from a bitstream, a profile syntax element indicating a target profile among available profiles and a coding tool syntax element for configurable coding tools, the coding tool syntax element indicating whether or not to apply the coding tool; and setting, on the basis of the coding tool syntax element, target coding tools that are coding tools included in the target profile to be on or off.Type: GrantFiled: February 7, 2023Date of Patent: March 5, 2024Assignee: SK TELECOM CO., LTD.Inventors: Jae Il Kim, Sun Young Lee
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Patent number: 11924454Abstract: A coding tool setting method and a video decoding apparatus using the same are disclosed. An embodiment of the present invention relates to a method for setting whether or not to use a coding tool, and provides a coding tool setting method comprising the steps of: decoding, from a bitstream, a profile syntax element indicating a target profile among available profiles and a coding tool syntax element for configurable coding tools, the coding tool syntax element indicating whether or not to apply the coding tool; and setting, on the basis of the coding tool syntax element, target coding tools that are coding tools included in the target profile to be on or off.Type: GrantFiled: February 7, 2023Date of Patent: March 5, 2024Assignee: SK TELECOM CO., LTD.Inventors: Jae Il Kim, Sun Young Lee
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Patent number: 11917212Abstract: Disclosed herein are a QTBT split structure allowing blocks of various shapes capable of more efficiently reflecting various local characteristics of video and a method of efficiently signaling the split structure.Type: GrantFiled: January 20, 2023Date of Patent: February 27, 2024Assignee: SK TELECOM CO., LTD.Inventors: Jeong-yeon Lim, Jae-seob Shin, Se-hoon Son, Sun-young Lee
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Patent number: 11917453Abstract: Disclosed are a BS apparatus, a terminal apparatus, and a QoS control method for implementing the service flow-based QoS control without increasing complexity compared to the conventional bearer-based QoS control method.Type: GrantFiled: February 9, 2023Date of Patent: February 27, 2024Assignee: SK TELECOM CO., LTD.Inventors: Sang Soo Jeong, Jong Han Park
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Patent number: 11910436Abstract: Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver configured to transmit/receive a wireless signal, and a processor configured to control an operation of the wireless communication terminal. The transceiver receives a trigger frame including information on a channel to be used, by a plurality of wireless communication terminals including the wireless communication terminal, in communication with a base wireless communication terminal that is any one wireless communication terminal different from the plurality of wireless communication terminals.Type: GrantFiled: July 14, 2020Date of Patent: February 20, 2024Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Jinsoo Ahn, Yongho Kim, Jinsam Kwak, Juhyung Son
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Patent number: 11902594Abstract: Disclosed herein are a QTBT split structure allowing blocks of various shapes capable of more efficiently reflecting various local characteristics of video and a method of efficiently signaling the split structure.Type: GrantFiled: January 20, 2023Date of Patent: February 13, 2024Assignee: SK TELECOM CO., LTD.Inventors: Jeong-yeon Lim, Jae-seob Shin, Se-hoon Son, Sun-young Lee
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Patent number: 11902590Abstract: Disclosed is a method and apparatus for encoding/decoding a video. According to an embodiment, provided is a method of setting a level for each of one or more regions, including decoding a definition syntax element related to level definition and a designation syntax element related to target designation from a bitstream; defining one or more levels based on the definition syntax element; and setting a target level designated by the designation syntax element among the defined levels for a target region designated by the designation syntax element.Type: GrantFiled: October 20, 2022Date of Patent: February 13, 2024Assignee: SK TELECOM CO., LTD.Inventors: Jeong-yeon Lim, Jae Seob Shin, Sun Young Lee, Se Hoon Son, Tae Young Na, Jae Il Kim
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Patent number: 11902927Abstract: An apparatus for time synchronization of a repeater according to an embodiment of the present disclosure includes a downlink receiver and a downlink transmitter establishing a downlink path for delivering a downlink signal, an uplink receiver and an uplink transmitter establishing an uplink path for delivering an uplink signal, a switch including an upper switch and a lower switch and performing switching such that the downlink path is established in a downlink interval and the uplink path is established in an uplink interval, a delay processor compensating for a time delay of one of the downlink signal and the uplink signal, and a synchronization controller controlling the switching of the switch in synchronization with the time delay of the compensated signal so that the uplink interval and the downlink interval do not overlap.Type: GrantFiled: May 5, 2021Date of Patent: February 13, 2024Assignee: SK Telecom Co., Ltd.Inventor: Dae Young Lee
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Patent number: 11898851Abstract: In accordance with an aspect of the present disclosure, there is provided an apparatus for estimating a location of a vehicle including, a communication unit configured to receive, from an information providing vehicle, identification information and location information on a driving vehicle in a vicinity of the information providing vehicle, a weighted value obtaining unit configured to obtain a weighted value representing accuracy of the location information based on the received identification information and a location estimating unit configured to estimate a location of the driving vehicle by applying the weighted value to the location information.Type: GrantFiled: March 1, 2021Date of Patent: February 13, 2024Assignee: SK Telecom Co., Ltd.Inventor: Taekyeong Lee
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Patent number: 11882622Abstract: The present disclosure relates to an edge computing (multi-access edge computing, MEC) technology and, to an edge computing management device and an operating method of an edge computing management device, which provide a data roaming service by utilizing an edge computing cloud (MEC cloud) that exists in a communication provider network.Type: GrantFiled: August 9, 2021Date of Patent: January 23, 2024Assignee: SK Telecom Co., LTD.Inventor: Min Cheol Park
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Patent number: 11871327Abstract: The present invention relates to a terminal device and a method by which a terminal device switches a data transmission path, the terminal device being capable of switching a data transmission path by determining by itself whether the data transmission path for transmission of user plane data is switched without a link, among core configurations of respective networks in a mutual interworking environment among heterogeneous networks.Type: GrantFiled: January 12, 2018Date of Patent: January 9, 2024Assignee: SK TELECOM CO., LTD.Inventor: Min Soo Na
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Patent number: 11871241Abstract: The present invention relates to a wireless communication method and a wireless communication terminal for a spatial reuse operation of an overlapping basic service set, and more particularly, to a wireless communication method and a wireless communication terminal for supporting a spatial reuse operation of an overlapping basic service set to efficiently use a wireless resource. To this end, provided are a wireless communication terminal including: a processor; and a communication unit, wherein the processor receives a trigger frame indicating an uplink multi-user transmission, and transmits a trigger-based PHY protocol data unit (PPDU) in response to the received trigger frame, wherein the trigger-based PPDU comprises a spatial reuse parameter for spatial reuse operation of an overlapping basic service set (OBSS) terminal and a wireless communication method using the same.Type: GrantFiled: September 21, 2021Date of Patent: January 9, 2024Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Geonjung Ko, Juhyung Son, Jinsam Kwak, Woojin Ahn
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Patent number: 11864233Abstract: Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver configured to transmit/receive a wireless signal and a processor configured to control an operation of the wireless communication terminal. The transceiver receives a MAC frame including information on a plurality of wireless communication terminals that are to receive data from a base wireless communication terminal. The plurality of wireless communication terminals include the wireless communication terminal and receive data from the base wireless communication terminal based on the MAC frame.Type: GrantFiled: November 4, 2022Date of Patent: January 2, 2024Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Jinsoo Ahn, Yongho Kim, Jinsam Kwak, Juhyung Son
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Patent number: 11849122Abstract: Disclosed are an inter-prediction method and an video decoding device. One embodiment of the present invention provides an inter-prediction method executed in an video decoding device, including deriving a motion vector of a current block based on motion information decoded from a bitstream; acquiring reference samples of a first reference block by using the motion vector, wherein reference samples of an external region located outside a reference picture among the first reference block are acquired from a corresponding region corresponding to the external region within the reference picture; and predicting the current block based on the acquired reference samples.Type: GrantFiled: July 14, 2022Date of Patent: December 19, 2023Assignee: SK TELECOM CO., LTD.Inventors: Jeong Yeon Lim, Se Hoon Son, Sun Young Lee, Tae Young Na
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Patent number: 11849121Abstract: Disclosed are an inter-prediction method and an video decoding device. One embodiment of the present invention provides an inter-prediction method executed in an video decoding device, including deriving a motion vector of a current block based on motion information decoded from a bitstream; acquiring reference samples of a first reference block by using the motion vector, wherein reference samples of an external region located outside a reference picture among the first reference block are acquired from a corresponding region corresponding to the external region within the reference picture; and predicting the current block based on the acquired reference samples.Type: GrantFiled: July 14, 2022Date of Patent: December 19, 2023Assignee: SK TELECOM CO., LTD.Inventors: Jeong Yeon Lim, Se Hoon Son, Sun Young Lee, Tae Young Na
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Patent number: 11844059Abstract: The present invention relates to a wireless communication method for uplink multi-user transmission scheduling and a wireless communication terminal using the same. To this end, provided are a base wireless communication terminal comprising a processor and a transceiver, wherein the processor transmits a trigger frame soliciting an uplink multi-user transmission, determines whether the uplink multi-user transmission is successful based on received uplink multi-user data in response to the trigger frame, and retransmits the trigger frame when it is determined that the uplink multi-user transmission has failed and a wireless communication method using the same.Type: GrantFiled: October 14, 2020Date of Patent: December 12, 2023Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Jinsoo Ahn, Woojin Ahn, Yongho Kim, Jinsam Kwak, Juhyung Son