Patents by Inventor Su-han Choi

Su-han 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).

  • Patent number: 12156042
    Abstract: Disclosed are a method and a device for managing a beam in sidelink communication. An operation method of a first terminal comprises: a step for transmitting a first sidelink signal in all directions using a beam sweeping method in an initial beam management section; a step for receiving, from a second terminal, first feedback information for the first sidelink signal; a step for setting a first beam pair between the first terminal and the second terminal on the basis of the first feedback information; a step for performing sidelink communication with the second terminal using the first beam pair; and a step for, when it is necessary to reset the first beam pair, transmitting the second sidelink signal in a specific direction instead of all the directions using the beam sweeping method in a partial beam management section. Therefore, the performance of a communication system can be improved.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: November 26, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Su Han Choi, Gene Back Hahn, In Yong Jung
  • Patent number: 12120044
    Abstract: Provided are a repetitive transmission method for ultra-low latency and highly-reliable communication in a wireless communication system, and an apparatus therefor. A method for transmitting data by a terminal according to an embodiment of the present invention comprises the steps of: receiving information on the repetition number of transmission for a physical uplink shared channel (PUSCH) from a base station; receiving, from the base station, information on frequency hopping applied to the the PUSCH repetition configuring the the PUSCH repetition; determining a frequency resource for the PUSCH repetition based on the information on the frequency hopping; and performing the the PUSCH repetition.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: October 15, 2024
    Assignee: UUCOM CO., LTD.
    Inventor: Su Han Choi
  • Publication number: 20240330028
    Abstract: Provided is a virtual sensor system for a digital twin application. The virtual sensor system includes an edge gateway configured to collect data collected from physical sensors in the real world, apply the collected data to a virtual sensor model, and operate virtual sensors for configuring a digital twin world, and a virtual sensor framework configured to train the virtual sensor model using data, which is measured by the physical sensors, from the edge gateway and distribute the virtual sensor model to the edge gateway.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 3, 2024
    Inventors: Won Kyu CHOI, Se Han KIM, Hyeon PARK, Jae Young JUNG, Sung Soo KWON, Su Jin PARK, Ji Hoon BAE, Yu Jin HAN
  • Publication number: 20240323932
    Abstract: Disclosed are a method and a device for sidelink groupcast communication. A method for operating a transmitting terminal comprises the steps of: transmitting an SS/PBCH block for sidelink communication in all directions by using a beam sweeping method; receiving, from a plurality of receiving terminals, first feedback information about the SS/PBCH block; and transmitting a sidelink channel in a specific direction by using beams of the transmitting terminal that are determined on the basis of the first feedback information. Therefore, communication system performance can be improved.
    Type: Application
    Filed: May 23, 2024
    Publication date: September 26, 2024
    Inventors: Su Han Choi, Gene Back Hahn
  • Patent number: 12089263
    Abstract: The present disclosure relates to an apparatus and method for transmitting RAN (Radio Access Network) slice-related information, and discloses a user equipment including: a transceiver configured to receive individual control information provided individually for each RAN slice from a network node, and to perform a random access procedure using resources individually configured for each RAN slice based on the individual control information; and a processor for controlling reception of the individual control information, and the random access procedure. Such a user equipment provides an effect of being able to separately transmit control information including, for example, system information for each slice for RAN slicing.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: September 10, 2024
    Assignee: UUCOM CO., LTD.
    Inventor: Su Han Choi
  • Publication number: 20240260078
    Abstract: The present specification relates to an apparatus and method for performing random access. This specification discloses a method for performing random access by a terminal in a non-terrestrial network system, the method comprising the steps of: performing a search for a cell of a non-terrestrial network on the basis of a synchronization signal block transmitted from a non-terrestrial network node; after the search for the cell is completed, receiving, from the non-terrestrial network node, random access-related information about the cell of the non-terrestrial network; generating a random access preamble on the basis of a frequency resource area of a random access channel related to the cell of the non-terrestrial network; and transmitting the generated random access preamble to the non-terrestrial network node. Performance degradation can be reduced when random access is performed in a non-terrestrial network system.
    Type: Application
    Filed: April 9, 2024
    Publication date: August 1, 2024
    Applicant: UUCOM CO., LTD
    Inventor: Su Han CHOI
  • Patent number: 11997654
    Abstract: Disclosed are a method and a device for sidelink groupcast communication. A method for operating a transmitting terminal comprises the steps of: transmitting an SS/PBCH block for sidelink communication in all directions by using a beam sweeping method; receiving, from a plurality of receiving terminals, first feedback information about the SS/PBCH block; and transmitting a sidelink channel in a specific direction by using beams of the transmitting terminal that are determined on the basis of the first feedback information. Therefore, communication system performance can be improved.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: May 28, 2024
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Su Han Choi, Gene Back Hahn
  • Patent number: 11985696
    Abstract: The present specification relates to an apparatus and method for performing random access. This specification discloses a method for performing random access by a terminal in a non-terrestrial network system, the method comprising the steps of: performing a search for a cell of a non-terrestrial network on the basis of a synchronization signal block transmitted from a non-terrestrial network node; after the search for the cell is completed, receiving, from the non-terrestrial network node, random access-related information about the cell of the non-terrestrial network; generating a random access preamble on the basis of a frequency resource area of a random access channel related to the cell of the non-terrestrial network; and transmitting the generated random access preamble to the non-terrestrial network node. Performance degradation can be reduced when random access is performed in a non-terrestrial network system.
    Type: Grant
    Filed: May 26, 2021
    Date of Patent: May 14, 2024
    Assignee: UUCOM CO., LTD
    Inventor: Su Han Choi
  • Publication number: 20240089067
    Abstract: An operation method of a first terminal in a communication system is provided. The method includes configuring sidelink (SL) bandwidth parts (BWPs) used for groupcast sidelink communication and transmitting a configuration information message including configuration information of the SL BWPs to participating terminals participating in the groupcast sidelink communication. The groupcast sidelink communication is performed with the participating terminals using one or more SL BWPs among the SL BWPs. In response to determining that reconfiguration of the SL BWPs is necessary, the SL BWPs are reconfigured and a reconfiguration information message including reconfiguration information of the SL BWPs is transmitted to the participating terminals.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 14, 2024
    Inventors: Su Han Choi, Gene Back Hahn
  • Publication number: 20240008036
    Abstract: Provided are a data transmission method for ultra low-latency, highly-reliable communication in a wireless communication system, and a device therefor. A method for transmitting data in a wireless communication system comprises the steps of: receiving, from a base station, information relating to the number of repeated transmissions with respect to uplink data; configuring a plurality of physical uplink shared channels (PUSCH) corresponding to the number of repeated transmissions, wherein the uplink data is likewise mapped to the plurality of PUSCH; and sequentially transmitting the plurality of PUSCH in a single slot, wherein the plurality of PUSCH comprises a first PUSCH and a second PUSCH, and a first frequency resource for the transmission of the first PUSCH and a second frequency resource for the transmission of the second PUSCH can be changed so as to differ from one another in the single slot.
    Type: Application
    Filed: September 14, 2023
    Publication date: January 4, 2024
    Applicant: UUCOM CO., LTD
    Inventor: Su Han CHOI
  • Patent number: 11855929
    Abstract: An operation method of a first terminal in a communication system is provided. The method includes configuring sidelink (SL) bandwidth parts (BWPs) used for groupcast sidelink communication and transmitting a configuration information message including configuration information of the SL BWPs to participating terminals participating in the groupcast sidelink communication. The groupcast sidelink communication is performed with the participating terminals using one or more SL BWPs among the SL BWPs. In response to determining that reconfiguration of the SL BWPs is necessary, the SL BWPs are reconfigured and a reconfiguration information message including reconfiguration information of the SL BWPs is transmitted to the participating terminals.
    Type: Grant
    Filed: February 8, 2022
    Date of Patent: December 26, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Su Han Choi, Gene Back Hahn
  • Patent number: 11832243
    Abstract: Provided are a data transmission method for ultra low-latency, highly-reliable communication in a wireless communication system, and a device therefor. A method for transmitting data in a wireless communication system comprises the steps of: receiving, from a base station, information relating to the number of repeated transmissions with respect to uplink data; configuring a plurality of physical uplink shared channels (PUSCH) corresponding to the number of repeated transmissions, wherein the uplink data is likewise mapped to the plurality of PUSCH; and sequentially transmitting the plurality of PUSCH in a single slot, wherein the plurality of PUSCH comprises a first PUSCH and a second PUSCH, and a first frequency resource for the transmission of the first PUSCH and a second frequency resource for the transmission of the second PUSCH can be changed so as to differ from one another in the single slot.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: November 28, 2023
    Assignee: UUCOM CO., LTD
    Inventor: Su Han Choi
  • Patent number: 11778578
    Abstract: An operation method of a first UE in a communication system is provided. The method includes transmitting to a second UE a an SL-SSB in an omni-directional scheme and transmitting the SL-SSB in a beamforming scheme when a response message for the SL-SSB transmitted in the omni-directional scheme is not received from the second UE. Additionally, sidelink communication with the second UE according to the beamforming scheme when a response message for the SL-SSB transmitted in the beamforming scheme is received from the second UE.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: October 3, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Su Han Choi, Gene Back Hahn
  • Publication number: 20230292210
    Abstract: Disclosed are a device and a method for transmitting and receiving data in non-terrestrial and terrestrial network systems. According to an embodiment of the present invention, a wireless transmission and reception method performed by a user equipment in an environment where network nodes providing different cell coverages is implemented including the steps of: receiving information indicating a threshold value based on a synchronization signal block (SSB) or a reference signal received power (RSRP) from a first network node which provides a first cell coverage, measuring a channel between the first network node and the user equipment, comparing the channel measurement value with the threshold value; and on the basis of a result of comparing the channel measurement value with the threshold value, determining whether to initiate connection to a second network node which provides a second cell coverage which at least overlaps the first cell coverage.
    Type: Application
    Filed: July 15, 2021
    Publication date: September 14, 2023
    Applicant: Industry-Academic Cooperation Foundation, Dankook University
    Inventor: Su Han CHOI
  • Publication number: 20230292367
    Abstract: Disclosed are a device and method for performing a random access in a non-terrestrial network system.
    Type: Application
    Filed: July 15, 2021
    Publication date: September 14, 2023
    Applicant: Industry-Academic Cooperation Foundation, Dankook University
    Inventor: Su Han CHOI
  • Publication number: 20230292368
    Abstract: The present disclosure relates to an apparatus and method for transmitting RAN (Radio Access Network) slice-related information, and discloses a user equipment including: a transceiver configured to receive individual control information provided individually for each RAN slice from a network node, and to perform a random access procedure using resources individually configured for each RAN slice based on the individual control information; and a processor for controlling reception of the individual control information, and the random access procedure. Such a user equipment provides an effect of being able to separately transmit control information including, for example, system information for each slice for RAN slicing.
    Type: Application
    Filed: July 28, 2021
    Publication date: September 14, 2023
    Applicant: Industry-Academic Cooperation Foundation, Dankook University
    Inventor: Su Han CHOI
  • Publication number: 20230239089
    Abstract: Provided are a repetitive transmission method for ultra-low latency and highly-reliable communication in a wireless communication system, and an apparatus therefor. A method for transmitting data by a terminal according to an embodiment of the present invention comprises the steps of: receiving information on the repetition number of transmission for a physical uplink shared channel (PUSCH) from a base station; receiving, from the base station, information on frequency hopping applied to the the PUSCH repetition configuring the the PUSCH repetition; determining a frequency resource for the PUSCH repetition based on the information on the frequency hopping; and performing the the PUSCH repetition.
    Type: Application
    Filed: March 29, 2023
    Publication date: July 27, 2023
    Applicant: UUCOM CO., LTD
    Inventor: Su Han CHOI
  • Patent number: 11706012
    Abstract: An operation method of a first terminal in a communication system is provided. The method includes transmitting, to a base station, a configuration request message requesting configuration of a sidelink (SL) bandwidth part (BWP) used for sidelink communication between the first terminal and a second terminal. A configuration information message is received including configuration information of the SL BWP from the base station. The sidelink communication is performed with the second terminal using one or more SL BWPs indicated by the configuration information and in response to determining that reconfiguration of the one or more SL BWPs is necessary, a reconfiguration request message is transmitted to the base station.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: July 18, 2023
    Assignees: Hyundai Motor Company, Kia Corporation
    Inventors: Su Han Choi, Gene Back Hahn
  • Publication number: 20230180287
    Abstract: The present specification relates to an apparatus and method for performing random access. This specification discloses a method for performing random access by a terminal in a non-terrestrial network system, the method comprising the steps of: performing a search for a cell of a non-terrestrial network on the basis of a synchronization signal block transmitted from a non-terrestrial network node; after the search for the cell is completed, receiving, from the non-terrestrial network node, random access-related information about the cell of the non-terrestrial network; generating a random access preamble on the basis of a frequency resource area of a random access channel related to the cell of the non-terrestrial network; and transmitting the generated random access preamble to the non-terrestrial network node. Performance degradation can be reduced when random access is performed in a non-terrestrial network system.
    Type: Application
    Filed: May 26, 2021
    Publication date: June 8, 2023
    Inventor: Su Han CHOI
  • Patent number: 11637662
    Abstract: Provided are a repetitive transmission method for ultra-low latency and highly-reliable communication in a wireless communication system, and an apparatus therefor. A method for transmitting data by a terminal according to an embodiment of the present invention comprises the steps of: receiving information on the repetition number of transmission for a physical uplink shared channel (PUSCH) from a base station; receiving, from the base station, information on frequency hopping applied to the the PUSCH repetition configuring the the PUSCH repetition; determining a frequency resource for the PUSCH repetition based on the information on the frequency hopping; and performing the the PUSCH repetition.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: April 25, 2023
    Assignee: UUCOM CO., LTD
    Inventor: Su Han Choi