Patents Assigned to SK Telecom Co., Ltd.
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Patent number: 12295073Abstract: The present disclosure is to implement a technique (scheme) of guaranteeing the mobility of an application server that enables a user equipment (UE) to seamlessly use a data service in real time even when the application server is changed.Type: GrantFiled: June 29, 2021Date of Patent: May 6, 2025Assignee: SK TELECOM CO., LTD.Inventors: Dong Jin Lee, Seong Jun Lee, Hyun Jun Choi
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Patent number: 12287210Abstract: In accordance with an aspect of the present disclosure, there is provided a vehicle position estimation method. The method comprises, obtaining a landmark-based initial position information of a camera by matching a landmark in a high definition map corresponding to a GPS-based initial position information of a vehicle to an image obtained by the camera of the vehicle, and obtaining estimated position information of the vehicle by comparing the image with a landmark in the high definition map corresponding to each of a plurality of candidate position information sampled based on the landmark-based initial position information of the camera.Type: GrantFiled: November 2, 2018Date of Patent: April 29, 2025Assignee: SK TELECOM CO., LTD.Inventor: Seongsoo Lee
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Patent number: 12284607Abstract: The present invention relates to a wireless communication method for power saving and a wireless communication terminal using the same, and more particularly, to a wireless communication method for efficiently conducting data transmission/reception of each terminal in a high density environment and a wireless communication terminal using the same. To this end, the present invention provides a wireless communication method for a terminal including receiving a distributed access group parameter for data transmission/reception by a group unit, wherein the distributed access group parameter comprises information about a number of groups assigned to a corresponding BSS, obtaining group information about the terminal based on the distributed access group parameter, and performing data transmission based on the obtained group information, and a wireless communication terminal using the same.Type: GrantFiled: October 17, 2023Date of Patent: April 22, 2025Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Yongho Kim, Jinsam Kwak, Juhyung Son
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Patent number: 12284252Abstract: The present disclosure relates to an edge configuration server, an edge enable server, and an operating methods thereof capable of minimizing signaling required for reconnection of a terminal device in an edge computing (multi-access edge computing: MEC) service environment in which an edge computing service is available through an edge cloud site (MEC site) closest to a network connection location of the terminal device.Type: GrantFiled: September 23, 2021Date of Patent: April 22, 2025Assignee: SK Telecom Co., Ltd.Inventor: Keun Hyun Kim
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Patent number: 12278723Abstract: The present invention relates to a channel access method for data transmission, and a wireless communication method and a wireless communication terminal using the same, and more particularly, to a wireless communication method and a wireless communication terminal for efficiently scheduling data transmissions of a plurality of terminals. To this end, provided are a wireless communication terminal comprising a processor and a transceiver, wherein the processor receives a trigger frame indicating an uplink multi-user transmission, and transmits an uplink multi-user PLCP protocol data unit (PPDU) in response to the received trigger frame, wherein the trigger frame and a non-legacy preamble of the uplink multi-user PPDU contains remaining transmission opportunity (TXOP) time information of a current TXOP and a wireless communication method using the same.Type: GrantFiled: April 27, 2024Date of Patent: April 15, 2025Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Juhyung Son, Jinsam Kwak, Geonjung Ko
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Patent number: 12279311Abstract: 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.Type: GrantFiled: September 24, 2023Date of Patent: April 15, 2025Assignees: 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: 12250714Abstract: Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver; and a processor. The processor is configured to receive a signaling field of a first PLCP Protocol Data Unit (PPDU) through the transceiver, and access a channel based on information identifying a Basic Service Set (BSS) indicated by the signaling field.Type: GrantFiled: May 27, 2022Date of Patent: March 11, 2025Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Juhyung Son, Geonjung Ko, Jinsam Kwak, Woojin Ahn
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Patent number: 12244406Abstract: Disclosed is a wireless communication terminal. The wireless communication terminal includes a transceiver transmitting/receiving a wireless signal; and a processor controlling an operation of the wireless communication terminal. The transceiver receives a first frame including information on a manner for accessing, by a plurality of wireless communication terminals including the wireless communication terminal, a base wireless communication terminal. The processor acquires a manner for accessing the base wireless communication terminal on a basis of the first frame. The transceiver accesses the base communication terminal on a basis of the manner for accessing the base wireless communication terminal. The base wireless communication terminal is any one communication terminal different from the plurality of wireless communication terminals.Type: GrantFiled: October 17, 2023Date of Patent: March 4, 2025Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Woojin Ahn, Yongho Kim, Jinsam Kwak, Juhyung Son
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Patent number: 12225587Abstract: 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: October 1, 2023Date of Patent: February 11, 2025Assignees: 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: 12219581Abstract: The present invention relates to a wireless communication method for simultaneous transmit and receive of data and a wireless communication terminal using the same, and more particularly, to a wireless communication method and an apparatus thereof which can efficiently perform simultaneous data transmission and reception even in an overlapped BSS environment. To this end, provided are a wireless communication method of a terminal, including: performing a backoff procedure for transmitting data; transmitting a first RTS frame when a backoff counter of the backoff procedure is expired; setting a transmission timer for waiting for transmitting the data when a second RTS frame is received in response to the transmitted first RTS frame; and waiting for transmitting the data based on the set transmission timer and a wireless communication terminal using the same.Type: GrantFiled: October 17, 2023Date of Patent: February 4, 2025Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Woojin Ahn, Yongho Kim, Jinsam Kwak, Juhyung Son
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Patent number: 12219600Abstract: The present invention relates 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 base wireless communication terminal including: a processor; and a communication unit, wherein the processor receives a PHY protocol data unit (PPDU) through the communication unit, determines whether the PPDU contains an intra-BSS frame or contains an inter-BSS frame based on preamble information of the PPDU, and performs either a first operation or a second operation distinct from each other according to a determination result and a wireless communication method using the same.Type: GrantFiled: October 17, 2023Date of Patent: February 4, 2025Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY, SK TELECOM CO., LTD.Inventors: Geonjung Ko, Juhyung Son, Woojin Ahn, Jinsam Kwak
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Patent number: 12213188Abstract: Provided is a wireless communication terminal that wirelessly communicates. the wireless communication terminal includes: a transceiver for transmitting and receiving a wireless signal; and a processor for processing the wireless signal. The processor is configured to perform a transmission based on a transmission opportunity (TXOP) limit which is a maximum value of a TXOP, which is a time interval in which a wireless communication terminal has a right to initiate a frame exchange sequence in a wireless medium.Type: GrantFiled: July 15, 2023Date of Patent: January 28, 2025Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Woojin Ahn, Juhyung Son, Geonjung Ko, Jinsam Kwak
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Patent number: 12213070Abstract: In accordance with an aspect of the present disclosure, there is provided a method for controlling connection time of a terminal by an Access and Mobility Management Function (AMF) node. The method comprises receiving information on first connection time from the terminal; and transmitting or receiving data to or from the terminal during the first connection time, wherein the information on the first connection time indicates time to activate a PDU session between the terminal and the AMF node.Type: GrantFiled: February 7, 2022Date of Patent: January 28, 2025Assignee: SK TELECOM CO., LTD.Inventor: DongJin Lee
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Patent number: 12207129Abstract: Provided is a wireless communication terminal wirelessly communicating with a base wireless communication terminal. The wireless communication terminal comprises a transceiver and the processor. The processer receives, by using the transceiver, a wireless signal including a trigger frame from the base wireless communication terminal and transmits, by using the transceiver, buffer status information to the base wireless communication terminal based on the trigger frame. The buffer status information is included in a QoS control field which signals information on a QoS control of a MAC header.Type: GrantFiled: October 25, 2023Date of Patent: January 21, 2025Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Yongho Kim, Jinsam Kwak, Juhyung Son
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Patent number: 12207132Abstract: Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The processor is configured to receive a trigger frame for triggering that a frame for setting a link with a wireless communication terminal, which is an AP, is transmitted through UpLink Multi User (UL MU) transmission through the transmission/reception unit. The processor transmits the frame for setting the link through UL MU transmission based on the trigger frame.Type: GrantFiled: June 2, 2023Date of Patent: January 21, 2025Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Woojin Ahn, Juhyung Son, Jinsam Kwak, Geonjung Ko, Yongho Kim
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Patent number: 12188773Abstract: In accordance with an aspect of the present disclosure, there is provided a vehicle sensor correction information determining method comprising: acquiring estimated location information of a vehicle based on matching information between a camera image photographed by a camera of the vehicle and a landmark on a precise map; and determining a scale factor for a wheel speed sensor based on an estimated travel distance calculated based on the acquired estimated location information of the vehicle and a travel distance of the vehicle detected by the wheel speed sensor of the vehicle.Type: GrantFiled: September 4, 2021Date of Patent: January 7, 2025Assignee: SK TELECOM CO., LTD.Inventor: Seongsoo Lee
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Patent number: 12192981Abstract: Provided is a wireless communication terminal. The wireless communication terminal includes: a transceiver configured for transmitting/receiving a wireless signal; and a processor configured for controlling an operation of the wireless communication terminal. The transceiver receives a first frame indicating that there is data to be transmitted from a base wireless communication terminal to a plurality of wireless communication terminals including the wireless communication terminal and receives data based on the first frame. The base wireless communication terminal is any one wireless communication terminal different from the plurality of wireless communication terminals.Type: GrantFiled: September 24, 2023Date of Patent: January 7, 2025Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Woojin Ahn, Yongho Kim, Jinsam Kwak, Juhyung Son
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Patent number: 12193071Abstract: The present invention relates to a wireless communication method for simultaneous data transmission and a wireless communication terminal using the same, and more particularly, a wireless communication method in which a plurality of terminals simultaneously transmit data for improving a data throughput in a high density environment, and a wireless communication terminal using the same. To this end, the present invention provides a wireless communication method for a terminal including transmitting a trigger frame indicating simultaneous uplink data transmission of multi-users, receiving uplink data transmitted by a plurality of terminals in response to the trigger frame, and transmitting a block acknowledgement for the plurality of terminals having transmitted the uplink data, and a wireless communication terminal using the same.Type: GrantFiled: September 15, 2023Date of Patent: January 7, 2025Assignees: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC., SK TELECOM CO., LTD.Inventors: Woojin Ahn, Yongho Kim, Juhyung Son, Jinsam Kwak
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Patent number: 12192112Abstract: The present invention relates to a wireless communication terminal and a wireless communication method for efficiently scheduling uplink multi-user transmission. To this end, provided are a base wireless communication terminal, including: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the transceiver, wherein the processor selects an access category for transmitting a trigger frame which solicits an uplink multi-user transmission, performs a backoff procedure for transmitting the trigger frame based on the selected access category, and transmits the trigger frame when a backoff counter of the backoff procedure expires and a wireless communication method using the same.Type: GrantFiled: December 15, 2021Date of Patent: January 7, 2025Assignees: 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: 12189720Abstract: In accordance with an aspect of the present disclosure, there is provided an image analysis method comprising, inputting a target image to an image analysis model composed of at least one expert generated by learning the training image; analyzing the target image based on an output value from the at least one expert; determining validity of an analysis result for the target image based on a probability of the input target image to belong to an input category of the at least one expert; and when it is determined that the analysis result for the target image is not valid, classifying the target image into a new category.Type: GrantFiled: September 3, 2021Date of Patent: January 7, 2025Assignee: SK Telecom Co., Ltd.Inventors: Taewan Kim, Gunhee Kim, Soochan Lee