Patents by Inventor Woo-Jin Choi

Woo-Jin 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: 10425938
    Abstract: The present disclosure relates to a method and apparatus for configuring a resource for the transmission/reception of data. More particularly, the present disclosure relates to a method and apparatus for configuring an MCS and a TBS for an MTC terminal. Particularly, provided is a method and apparatus for determining a TBS by an MTC terminal. The method may include receiving scheduling information transmitted based on an MCS used for the MTC terminal and a TBS table and determining a TBS using the scheduling information provided by a base station.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: September 24, 2019
    Assignee: KT CORPORATION
    Inventors: Seunghyun Kang, Woo-jin Choi
  • Publication number: 20190289581
    Abstract: Provided are a method and apparatus for performing multicast communication in a communication system based on LTE or LTE-Advanced. The method of a UE includes receiving a Single Cell-Multicast Control CHannel (SC-MCCH) by monitoring a downlink channel based on a preset Downlink Control Information (DCI) format, determining a DCI format for receiving a Single Cell-Multicast Traffic CHannel (SC-MTCH) based on Coverage Enhanced Mode (CEMode) information included in the SC-MCCH, and receiving the SC-MTCH by monitoring the downlink channel based on the determined DCI format for receiving the SC-MTCH.
    Type: Application
    Filed: June 6, 2019
    Publication date: September 19, 2019
    Applicant: KT CORPORATION
    Inventors: Kyujin PARK, Woo-jin CHOI
  • Publication number: 20190289640
    Abstract: Provided is a method for a base station executing a multi-beam-based random access procedure in wireless communication, and a device therefor. The method may include: transmitting information associated with a RACH resource to a terminal; receiving a multi-RACH preamble from the terminal by a multi-beam; and transmitting a random access response to the terminal.
    Type: Application
    Filed: October 27, 2017
    Publication date: September 19, 2019
    Applicant: KT CORPORATION
    Inventors: Ki-tae KIM, Woo-jin CHOI
  • Patent number: 10420067
    Abstract: Disclosed are a control plane signaling method and apparatus for reducing signaling according to a state change of a UE, and a method of efficiently changing a UE connection UE in a wireless network without movement or a state transition change of a UE in a core network. A method of changing a connection state by a UE includes: transmitting UE capability information indicating that the UE supports a light connection to an eNB; receiving a Radio Resource Control (RRC) message including indication information indicating a state change to a light connection state from the eNB; and changing a connection state of the UE from an RRC-connected state to the light connection state based on the indication information.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: September 17, 2019
    Assignee: KT CORPORATION
    Inventors: Sung-pyo Hong, Woo-jin Choi
  • Patent number: 10413575
    Abstract: The composition according to the present invention, which comprises Lactococcus chungangensis as an active ingredient, has excellent effects of preventing or treating inflammatory diseases, inhibiting the secretion of nitric oxide and prostaglandin E2, which are major inflammatory factors, and inhibiting the secretion of ?-hexosaminidase and histamine, which are major factors related to allergies, and also significantly suppressing the production of skin disease-related cytokines and chemokines. Such effects are at the same level as those of conventional skin disease therapeutic agents (tacrolimus), and thus the composition can be used as a preventive or therapeutic agent against inflammatory diseases. In addition, the composition according to the present invention exhibits an antibacterial activity against Staphylococcus aureus, which is a microorganism inducing a secondary infection of atopic dermatitis and the like, and thus can be used in preventing or treating a bacterial infection.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: September 17, 2019
    Assignee: Chung-Ang University Industry-Academic Cooperation Foundation
    Inventors: Won Yong Kim, Woo Jin Choi
  • Publication number: 20190274620
    Abstract: The present invention provided a method for diagnosing scoliosis degree using spatial coordinates may include obtaining spatial coordinates corresponding to left, right and center points of shoulders, pelvis and legs of a subject, calculating both height deviations between left and right shoulders and between left and right pelvis, respectively, obtaining a first scoliosis degree by combining the height deviations, calculating a length deviation between the left and right legs, obtaining a second scoliosis degree by the length deviation and, determining a final scoliosis degree by summing the first and second scoliosis degrees.
    Type: Application
    Filed: March 9, 2018
    Publication date: September 12, 2019
    Applicant: DRIOM CO., LTD.
    Inventor: Woo Jin CHOI
  • Patent number: 10412731
    Abstract: The present disclosure relates to a method and an apparatus for uplink data scheduling of a cell using an unlicensed spectrum. The method may include configuring carrier aggregation including a secondary cell (SCell) using an unlicensed spectrum, receiving downlink control information including subframe allocation information for transmitting uplink data in the secondary cell from a base station, and transmitting the uplink data through a plurality of consecutive subframes based on the subframe allocation information.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: September 10, 2019
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Publication number: 20190274153
    Abstract: Provided are a method and apparatus for transmitting and receiving a downlink signal for supporting effective multiplexing between data traffic having mutually different QoS requirements in a next generation/5G wireless access network (“New Radio” (NR)) for which discussion has begun in 3 GPP. The method may include receiving configuration information for receiving downlink pre-emption indication data from a base station; monitoring the downlink pre-emption indication data based on the configuration information; and receiving the downlink pre-emption indication data through a multicast or unicast signal, wherein the downlink pre-emption indication data indicates superposed radio resources for providing a first service and for providing a second service.
    Type: Application
    Filed: November 16, 2017
    Publication date: September 5, 2019
    Applicant: KT CORPORATION
    Inventors: Kyujin PARK, Woo-jin CHOI
  • Patent number: 10403433
    Abstract: A multilayer electronic component includes a first capacitor including a first multilayer body having a structure in which a plurality of internal electrodes and a plurality of dielectric layers are alternately stacked, a second capacitor including a second multilayer body disposed adjacent the first multilayer body, the second multilayer body connected to the first multilayer body in parallel, and the second multilayer body having a structure in which a plurality of internal electrodes and a plurality of dielectric layers are alternately stacked, a fixing member fixing the first and second multilayer bodies, a first lead terminal connected to a first end portion of the fixing member, and a second lead terminal connected to a second end portion of the fixing member.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: September 3, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Woo Jin Choi
  • Publication number: 20190268799
    Abstract: Provided are methods and apparatuses for transmitting a buffer status report in carrier aggregation environment. The method may include receiving, from a base station, high layer signaling including information for configuring data duplicate transmission using carrier aggregation, configuring a plurality of radio link control (RLC) entities including a first RLC entity and a second RLC entity associated with one packet data convergence protocol (PDCP) entity based on the high layer signaling, and configuring a logical channel associated with the first RLC entity and a logical channel associated with the second RLC entity to one medium access control (MAC) entity; and when the data duplicate transmission is activated, transmitting, to the base station, the buffer status report including PDCP data volume in both a logical channel group associated with the first RLC entity and a logical channel group associated with the second RLC entity.
    Type: Application
    Filed: March 8, 2018
    Publication date: August 29, 2019
    Applicant: KT CORPORATION
    Inventors: Sung-pyo HONG, Woo-jin CHOI
  • Publication number: 20190268901
    Abstract: Provided is a method for a terminal for transmitting uplink control data. The method includes receiving, from a base station, at least one of UL control channel resource set configuration information and UL control channel transmission information, configuring an UL control channel including the UL control information based on at least one of the UL control channel resource set configuration information and the UL control channel transmission information, and transmitting the UL control channel to the base station. The UL control channel is configured with one or more UL control channel formats based on the number of symbols that configure the UL control channel.
    Type: Application
    Filed: November 16, 2017
    Publication date: August 29, 2019
    Applicant: KT CORPORATION
    Inventors: Kyujin PARK, Woo-jin CHOI
  • Publication number: 20190268103
    Abstract: Provided is a method for scheduling an uplink control channel (PUCCH) in a next generation/5G wireless access network. The method of a terminal for scheduling a PUCCH may include: receiving, from a base station, timing relationship setting information between a downlink data channel (PDSCH) and a PUCCH; and scheduling the PUCCH on the basis of the timing relationship setting information.
    Type: Application
    Filed: October 27, 2017
    Publication date: August 29, 2019
    Applicant: KT CORPORATION
    Inventors: Kyujin PARK, Woo-jin CHOI
  • Publication number: 20190261337
    Abstract: Provided is s a method for a base station to allocate a time interval resource to transceive a downlink data channel (PDSCH) or an uplink data channel (PUSCH). The method include allocating a time interval resource for each OFDM symbol on the basis of a slot or a mini-slot, transmitting, to a terminal, time interval resource configuration information including OFDM symbol allocation data for OFDM symbols used for data channel transception in the slot or the mini-slot, and transmitting, to the terminal, control information selecting one of the symbol allocation data included in the time interval resource configuration information.
    Type: Application
    Filed: October 30, 2017
    Publication date: August 22, 2019
    Applicant: KT CORPORATION
    Inventors: Kyujin PARK, Woo-jin CHOI
  • Publication number: 20190245727
    Abstract: The present embodiments relate to a method for configuring a cyclic prefix for a next generation/5G radio access network (referred to as new radio (NR)) about which 3GPP has begun discussions. According to the present embodiments, a base station configures cyclic prefix (CP) lengths for secondary numerology except for reference numerology and sets, through RRC signaling, the values of the CP lengths configured for the secondary numerology, thereby enabling a terminal to detect the CP lengths for the secondary numerology in a cell supporting mixed numerology.
    Type: Application
    Filed: September 22, 2017
    Publication date: August 8, 2019
    Applicant: KT CORPORATION
    Inventors: Kyujin PARK, Woo-jin CHOI
  • Publication number: 20190239175
    Abstract: Provided are a method and a device for configuring and transmitting a synchronization signal in an NR system. The method includes configuring one or more synchronization signals to be transmitted within an entire bandwidth, and transmitting the configured one or more synchronization signals through the entire bandwidth.
    Type: Application
    Filed: September 28, 2017
    Publication date: August 1, 2019
    Applicant: KT CORPORATION
    Inventors: Ki-tae KIM, Woo-jin CHOI
  • Publication number: 20190230657
    Abstract: Provided is a method and a device for transmitting an Ack/Nack of sPUCCH in response to the reception of short TTI-based sPDSCH in a 3GPP LTE/LTE- Advanced system. A base station may set, for each terminal, an offset value for setting a link between sPDSCH and sPUCCH, and transmit the set offset value to the terminal through upper layer signaling (RRC signaling), thereby enabling a terminal to use the offset value to allocate sPUCCH resources for transmitting an Ack/Nack in response to the reception of sPDSCH.
    Type: Application
    Filed: August 11, 2017
    Publication date: July 25, 2019
    Applicant: KT CORPORATION
    Inventors: Ki-tae KIM, Kyujin PARK, Woo-jin CHOI
  • Patent number: 10362590
    Abstract: Provided are a method and an apparatus for transmitting uplink data from a terminal to base stations. In particular, the terminal establishes dual connectivity with a plurality of base station, and the terminal transmits and receives uplink and downlink traffic through multiple carriers by distinguishing paths. More specifically, the method may include receiving upper layer signaling which includes information for establishing dual connectivity with a first base station and a second base station, establishing dual connectivity between the first base station and the second base station, based on the upper layer signaling, and submitting a PDCP PDU for each of one or more wireless bearers, from a PDCP object to an RLC entity, which is a peer to the second station based on the upper layer signaling.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: July 23, 2019
    Assignee: KT CORPORATION
    Inventors: Sung-pyo Hong, KyungJun Lee, Woo-jin Choi
  • Patent number: 10362615
    Abstract: Provided is a method for configuring dual connection with multiple base stations by a terminal. The method includes receiving, from a first base station, a first signal including indication information that indicates configuration of the additional wireless resource through the second base station; attempting the configuration of the additional wireless resource through the second base station and random access to the second base station on the basis of the first signal; and transmitting, to the first base station, a second signal including failure indication information that indicates failure of the configuration of the additional wireless resource when failing to configure the additional wireless resource through the second base station or the random access with the second base station.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: July 23, 2019
    Assignee: KT CORPORATION
    Inventors: Sung-pyo Hong, Woo-jin Choi
  • Patent number: 10362570
    Abstract: Provided are a method and apparatus for performing multicast communication in a communication system based on LTE or LTE-Advanced. The method of a UE includes receiving a Single Cell-Multicast Control CHannel (SC-MCCH) by monitoring a downlink channel based on a preset Downlink Control Information (DCI) format, determining a DCI format for receiving a Single Cell-Multicast Traffic CHannel (SC-MTCH) based on Coverage Enhanced Mode (CEMode) information included in the SC-MCCH, and receiving the SC-MTCH by monitoring the downlink channel based on the determined DCI format for receiving the SC-MTCH.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: July 23, 2019
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Publication number: 20190222379
    Abstract: Provided are an sTTI setting method for an sPUSCH in a short ITT frame structure and a specific operating method for an sPUSCH based on a shared DM-RS. In the method, a shared DM-RS within an SPUSCH is allocated only to a specific symbol included in a partial sTTI and is used in all sPUSCHs within a legacy TTI (=1 ms).
    Type: Application
    Filed: March 8, 2017
    Publication date: July 18, 2019
    Applicant: KT CORPORATION
    Inventors: Ki-tae KIM, Woo-jin CHOI