Patents by Inventor Yong-Seouk Choi
Yong-Seouk Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240137821Abstract: Disclosed is a technique for switching from a master node to a secondary node in a communication system. A method of a first communication node may comprise: adding the first communication node as a primary secondary cell (PSCell) to a second communication node through dual connectivity (DC); generating a first user plane path for smart dynamic switching (SDS) and a first instance for supporting the first user plane path according to a request from the second communication node; transmitting information on the first user plane path and the first instance to a terminal; receiving user data based on the first user plane path from the terminal as the first instance; and transmitting the user data to a core network using the first user plane path.Type: ApplicationFiled: October 22, 2023Publication date: April 25, 2024Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon Gi PARK, Young-Jo KO, IL GYU KIM, Jung Im KIM, Jun Sik KIM, Sung Cheol CHANG, Sun Mi JUN, Yong Seouk CHOI
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Patent number: 11812479Abstract: An operation method of a terminal in a communication system may include: receiving, from a base station, primary RA configuration information for a primary RA procedure; receiving, from the base station, secondary RA configuration information for a secondary RA procedure; transmitting a primary RA preamble to the base station by using a primary RA resource indicated by the primary RA configuration information; receiving, from the base station, secondary RA indication information in response to the primary RA preamble, the secondary RA indication information indicating to perform the secondary RA procedure instead of the primary RA procedure; and transmitting a secondary RA preamble to the base station by using a secondary RA resource indicated by the secondary RA configuration information.Type: GrantFiled: November 3, 2021Date of Patent: November 7, 2023Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Ji Soo Park, Il Gyu Kim, Hee Sang Chung, Yong Seouk Choi, Jun Hyeong Kim, Go San Noh
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Patent number: 11683818Abstract: An operation method of a communication node in a millimeter-wave based communication system may comprise when a first communication path between the second base station and the terminal connected to the first base station is not established, transmitting a radio resource control (RRC) request message requesting establishment of the first communication path to the second base station via the first base station; receiving an RRC response message from the second base station via the first base station, the RRC response message being a response to the RRC request message; and establishing the first communication path based on the RRC response message.Type: GrantFiled: September 27, 2021Date of Patent: June 20, 2023Assignee: Electronics and Telecommunications Research InstituteInventors: Soon Gi Park, Yong Seouk Choi
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Publication number: 20230189013Abstract: An operation method of a first cell in a communication system may include: receiving, from a first communication node that is an upper node of the first cell, a first signal including second cell configuration information of a second cell connected with the first communication node and a second communication node that is a lower node of the first cell; identifying, based on the first signal, that the first cell and the second cell are jointly operated by the first communication node as coordinative PCells; transmitting, to the second communication node, a second signal including information on joint operations of the coordinative PCells by the first communication node; and performing communication with the first communication node and the second communication node based on the joint operations of the coordinative PCells.Type: ApplicationFiled: October 7, 2022Publication date: June 15, 2023Inventors: Soon Gi PARK, Young-Jo KO, Il Gyu KIM, Jun Sik KIM, Sung Cheol CHANG, Sun Mi JUN, Yong Seouk CHOI
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Publication number: 20230171832Abstract: A apparatus and a method thereof for managing access nodes for a low-latency service in a multi-radio multi-connectivity network are proposed. The method of operating user equipment (UE) in a wireless communication system includes a process of scanning a plurality of secondary nodes (SNs) where radio signals are measured around the UE, a process of transmitting a scanning result to a master node (MN), a process of receiving information about an SN group from the MN, a process of accessing an active SN on the basis of the information about the SN group, and a process of transmitting a message for establishing and modifying a protocol data unit (PDU) session to a core network (CN).Type: ApplicationFiled: November 29, 2022Publication date: June 1, 2023Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sun Mi JUN, Il Gyu KIM, Jun Sik KIM, Soon Gi PARK, Sung Cheol CHANG, Hee Sang CHUNG, Yong Seouk CHOI
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Publication number: 20230136920Abstract: An operation method of a terminal in a communication system may comprise: obtaining a plurality of serving beam measurement values by performing measurement on a plurality of serving beams; identifying a minimum measurement value among the plurality of serving beam measurement values; obtaining a plurality of beam measurement values by performing measurement on a plurality of beams received from a plurality of base stations included in the communication system; determining whether a first condition is satisfied, the first condition being defined based on a result of comparison between the plurality of beam measurement values and a sum of the minimum measurement value and a first offset; and in response to determining that the first condition satisfied, performing communication with at least part of the plurality of serving base stations and a first base station forming a first beam satisfying the first condition.Type: ApplicationFiled: October 28, 2022Publication date: May 4, 2023Applicant: Electronics and Telecommunications Research InstituteInventors: Soon Gi PARK, Jun Sik KIM, Sung Cheol CHANG, Sun Mi JUN, Yong Seouk CHOI, Duk Kyung KIM, Gwang Hae KIM
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Publication number: 20220150985Abstract: An operation method of a terminal in a communication system may include: receiving, from a base station, primary RA configuration information for a primary RA procedure; receiving, from the base station, secondary RA configuration information for a secondary RA procedure; transmitting a primary RA preamble to the base station by using a primary RA resource indicated by the primary RA configuration information; receiving, from the base station, secondary RA indication information in response to the primary RA preamble, the secondary RA indication information indicating to perform the secondary RA procedure instead of the primary RA procedure; and transmitting a secondary RA preamble to the base station by using a secondary RA resource indicated by the secondary RA configuration information.Type: ApplicationFiled: November 3, 2021Publication date: May 12, 2022Inventors: Ji Soo PARK, Il Gyu KIM, Hee Sang CHUNG, Yong Seouk CHOI, Jun Hyeong KIM, Go San NOH
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Publication number: 20220015094Abstract: An operation method of a communication node in a millimeter-wave based communication system may comprise when a first communication path between the second base station and the terminal connected to the first base station is not established, transmitting a radio resource control (RRC) request message requesting establishment of the first communication path to the second base station via the first base station; receiving an RRC response message from the second base station via the first base station, the RRC response message being a response to the RRC request message; and establishing the first communication path based on the RRC response message.Type: ApplicationFiled: September 27, 2021Publication date: January 13, 2022Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon Gi PARK, Yong Seouk CHOI
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Patent number: 11153865Abstract: An operation method of a communication node in a millimeter-wave based communication system may comprise when a first communication path between the second base station and the terminal connected to the first base station is not established, transmitting a radio resource control (RRC) request message requesting establishment of the first communication path to the second base station via the first base station; receiving an RRC response message from the second base station via the first base station, the RRC response message being a response to the RRC request message; and establishing the first communication path based on the RRC response message.Type: GrantFiled: March 13, 2018Date of Patent: October 19, 2021Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Soon Gi Park, Yong Seouk Choi
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Patent number: 10694442Abstract: An operation method of a first communication node connected to a first hub in a communication network may comprise measuring signal qualities for a first radio signal received from the first hub and a second radio signal received from a second hub adjacent to the first hub; calculating a difference in the signal qualities for the first radio signal and the second radio signal; comparing the calculated difference with a plurality of predetermined threshold values for handover of the first communication node; and performing a handover-related procedure indicated by one of the plurality of predetermined threshold values based on a result of the comparison.Type: GrantFiled: March 13, 2018Date of Patent: June 23, 2020Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Nam Suk Lee, Yong Seouk Choi
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Patent number: 10349372Abstract: A method of positioning a terminal includes: receiving a first radio signal generated through beamforming from a base station; obtaining a cell ID and a beam ID from the first radio signal; obtaining a received signal intensity of the first radio signal; and estimating a first position of the terminal by comparing a fingerprint in which a cell ID, a beam ID, and a received signal intensity are mapped to each point on a map with the cell ID, the beam ID, and the received signal intensity obtained from the first radio signal.Type: GrantFiled: July 18, 2017Date of Patent: July 9, 2019Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Sook Jin Lee, Wanhee Kim, Yong Seouk Choi
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Patent number: 10135578Abstract: Disclosed is a first electronic device and the first electronic device includes: a transmitter transmitting data to a second electronic device; a receiver receiving a feed-back (hereinafter, referred to as a first feed-back) for the transmitted data from the second electronic device; and a processor deciding whether to transmit the data again or another data to the second electronic device, based on the first feed-back, in which when the first feed-back is negative, the transmitter retransmits the data under a predetermined condition, and when a feed-back (hereinafter, referred to as a second feed-back) received from the second electronic device is negative with respect to the data retransmitted under the predetermined condition, the transmitter re-retransmits at least a part of the data to the second electronic device.Type: GrantFiled: December 29, 2015Date of Patent: November 20, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Seo Park, Yong Seouk Choi
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Publication number: 20180270809Abstract: An operation method of a communication node in a millimeter-wave based communication system may comprise when a first communication path between the second base station and the terminal connected to the first base station is not established, transmitting a radio resource control (RRC) request message requesting establishment of the first communication path to the second base station via the first base station; receiving an RRC response message from the second base station via the first base station, the RRC response message being a response to the RRC request message; and establishing the first communication path based on the RRC response message.Type: ApplicationFiled: March 13, 2018Publication date: September 20, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Soon Gi PARK, Yong Seouk CHOI
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Publication number: 20180270731Abstract: An operation method of a first communication node connected to a first hub in a communication network may comprise measuring signal qualities for a first radio signal received from the first hub and a second radio signal received from a second hub adjacent to the first hub; calculating a difference in the signal qualities for the first radio signal and the second radio signal; comparing the calculated difference with a plurality of predetermined threshold values for handover of the first communication node; and performing a handover-related procedure indicated by one of the plurality of predetermined threshold values based on a result of the comparison.Type: ApplicationFiled: March 13, 2018Publication date: September 20, 2018Applicant: Electronics and Telecommunications Research InstituteInventors: Nam Suk LEE, Yong Seouk CHOI
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Patent number: 10064190Abstract: In a communication environment using a millimeter wave band, a method and apparatus that enable a base station to process data are provided. A protocol stack is generated based on a characteristic of traffic that is provided to a terminal, and the generated protocol stack is allocated to the terminal. Data to be provided to the terminal is processed according to the generated protocol stack, and data that is processed through a beam that is allocated based on a position vector of the terminal is transmitted.Type: GrantFiled: December 15, 2015Date of Patent: August 28, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Jun Sik Kim, Yong Seouk Choi
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Patent number: 10004077Abstract: In a mobile communication network, after a target beam is determined based on signal intensity of a serving beam and a candidate beam, when the serving beam and the target beam are operated in the same base station, a terminal performs a beam switching procedure in a layer 2.Type: GrantFiled: December 18, 2015Date of Patent: June 19, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Nak Woon Sung, Yong Seouk Choi
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Patent number: 9955491Abstract: A terminal receives access priority information on a plurality of sub-beams configuring a beam from a base station, selects one of a plurality of beams, and selects one of a plurality of sub-beams of the selected beam on the basis of the access priority information to perform a random access.Type: GrantFiled: December 29, 2015Date of Patent: April 24, 2018Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Namsuk Lee, Yong Seouk Choi
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Publication number: 20180027519Abstract: A method of positioning a terminal includes: receiving a first radio signal generated through beamforming from a base station; obtaining a cell ID and a beam ID from the first radio signal; obtaining a received signal intensity of the first radio signal; and estimating a first position of the terminal by comparing a fingerprint in which a cell ID, a beam ID, and a received signal intensity are mapped to each point on a map with the cell ID, the beam ID, and the received signal intensity obtained from the first radio signal.Type: ApplicationFiled: July 18, 2017Publication date: January 25, 2018Inventors: Sook Jin LEE, Wanhee KIM, Yong Seouk CHOI
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Patent number: 9763249Abstract: A method and apparatus for allocating a resource in a heterogeneous network environment are provided. In a heterogeneous network environment in which small cells and a macrocell are mixed, a macro base station divides an entire frequency band that is allocated to a corresponding macrocell into a plurality of Frequency Partitions (FPs). The macro base station allocates some of the plurality of FPs to small cells that are included in the macrocell.Type: GrantFiled: April 14, 2015Date of Patent: September 12, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Namsuk Lee, Yong Seouk Choi
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Patent number: 9693268Abstract: A terminal starts a first timer for detecting an RLF (Radio Link Failure) when signal strength of a serving base station is lower than a reference value. The terminal triggers a handover without a TTT (Time to Trigger) for handover when signal strength of a target base station is greater than the signal strength of the serving base station by a first offset or more while the first timer is running. The terminal transmits a measurement report message regarding the signal strength of the target base station to the serving base station when a handover is triggered.Type: GrantFiled: April 29, 2015Date of Patent: June 27, 2017Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEInventors: Hyun Seo Park, Yong Seouk Choi