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: 10623931
    Abstract: Provided are a method of supporting Single Cell Point-to-Multi-point (SC-PTM) for a Bandwidth reduced Low complexity/Coverage Enhancement (BL/CE) terminal or an NB-IoT terminal, which are for a Machine Type Communication (MTC) application defined in a 3GPP LTE/LTE-A system. The method may include receiving configuration information relating to an NPDCCH search space from a base station wherein the NPDCCH search space is separately configured to receive scheduling control information for the multicasting control channel; receiving the scheduling control information for the multicasting control channel through the NPDCCH search space configured based on the configuration information; and receiving the multicasting control channel based on the scheduling control information, wherein the configuration information is received through higher layer signaling.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: April 14, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10616889
    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: August 2, 2019
    Date of Patent: April 7, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10616024
    Abstract: Disclosed are a method and apparatus for scheduling a data channel to support a user equipment (UE) using various bandwidth parts (BWPs) in a next-generation/5G radio access network. According to one embodiment, a method may be provided for receiving a downlink (DL) data channel or transmitting an uplink (UL) data channel by a user equipment (UE). The method may include: receiving bandwidth part (BWP) setup information about a BWP set configured with one or more BWPs set up with regard to the UE from a base station (BS); and receiving DL control information (DCI) including information for indicating one among the one or more BWPs included in the BWP set configured by the BWP setup information from the BS, wherein a DL data channel is received or a UL data channel is transmitted through the one BWP indicated by the DCI.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: April 7, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10616871
    Abstract: Provided are a method and an apparatus for processing uplink data. In particular, a method of a terminal for processing uplink data may include receiving configuration information for indicating uplink transmission configuration for an LTE-WLAN Aggregation (LWA) bearer from a base station; determining an uplink transmission path for the LWA bearer based on the configuration information and a transmittable data amount; and transmitting uplink data to the base station through the determined uplink transmission path, wherein the LWA bearer is a bearer configured to transmit the uplink data using at least one of a base station radio resource and a Wireless Local Area Network (WLAN) radio resource.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: April 7, 2020
    Assignee: KT CORPORATION
    Inventors: Sung-pyo Hong, Woo-jin Choi
  • Patent number: 10616916
    Abstract: Disclosed is a method of multiplexing and transmitting/receiving scheduling request (SR) information and HARQ ACK/NACK information through short PUCCH (sPUCCH) consisting two or three symbols when an uplink control channel is transmitted. A method of a terminal transmitting the uplink control channel includes configuring i) first uplink control channel resources for indicating only the HARQ ACK/NACK information and ii) second uplink control channel resources for indicating both of SR information and the HARQ ACK/NACK information, setting the uplink control channel to include the SR information and the HARQ ACK/NACK information, and transmitting the uplink control channel, which consists of two or three symbols in one short transmission time interval (sTTI), to a base station.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: April 7, 2020
    Assignee: KT CORPORATION
    Inventors: Ki-tae Kim, Woo-jin Choi
  • Patent number: 10616932
    Abstract: A method may be provided for configuring wireless connection of a terminal with a mobile communication network The method of an access unit may include transmitting, to a central unit, a first message having an uplink RRC message received from the terminal; receiving, from the central unit, a second message having a downlink RRC message; and transmitting the downlink RRC message to the terminal.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: April 7, 2020
    Assignee: KT CORPORATION
    Inventors: Sung-pyo Hong, Woo-jin Choi
  • Patent number: 10616834
    Abstract: Provided is a method of a base station for controlling the transmission power of a demodulation reference signal (DMRS) to a user equipment. The method may include determining a ratio of one or more empty resource elements to one or more DMRS resource elements over one or more DMRS symbols, determining a DMRS power boosting based on the determined ratio value, and transmitting the DMRS with power determined based on the DMRS power boosting to the user equipment.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: April 7, 2020
    Assignee: KT CORPORATION
    Inventors: Ki-tae Kim, Woo-jin Choi
  • Patent number: 10609699
    Abstract: Provided are a method for monitoring, transmitting, and receiving downlink pre-emption indication information in a next-generation/5G radio access network. The method may include receiving monitoring configuration information for downlink pre-emption indication information from a base station; receiving configuration information on a control resource set (CORESET) for receiving the downlink pre-emption indication information from the base station; configuring reference downlink resources based on the configuration information on a control resource set; and monitoring the downlink pre-emption indication information for the reference downlink resources.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: March 31, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10595344
    Abstract: Provided are a method of supporting Single Cell Point-to-Multi-point (SC-PTM) for a Bandwidth reduced Low complexity/Coverage Enhancement (BL/CE) terminal or an NB-IoT terminal, which is for a Machine Type Communication (MTC) application defined in a 3 GPP LTE/LTE-A system. The method may include receiving configuration information relating to an MPDCCH search space from a base station, wherein the MPDCCH search space is separately configured to receive scheduling control information for the multicasting control channel; receiving the scheduling control information for the multicasting control channel through the MPDCCH search space configured based on the configuration information; and receiving the multicasting control channel based on the scheduling control information, wherein the configuration information is received through higher layer signaling.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: March 17, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10593477
    Abstract: A capacitor component includes: a body having a first main surface and a second main surface facing each other in a thickness direction and side surfaces facing each other in a length direction and connected to the first and second main surfaces, the body including a plurality of dielectric layers and a plurality of internal electrodes stacked in the thickness direction and alternately exposed through the side surfaces of the body with each of the plurality of dielectric layers interposed therebetween; and external electrodes disposed on the side surfaces and the second main surface of the body and electrically connected to the plurality of internal electrodes.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: March 17, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Woo Jin Choi, Young Ghyu Ahn, Jong Duck Kim
  • Patent number: 10594460
    Abstract: Provided are an apparatus and method for transmitting and receiving an uplink (UL) channel. A method for a user equipment (UE) to transmit a UL control channel and a UL data channel to a base station (BS) includes receiving bandwidth part (BWP) configuration information of a BWP set composed of one or more BWPs configured for a UE from a BS, receiving frequency hopping configuration information for a UL control channel and a UL data channel transmitted through one BWP of the BWP set from the BS, and transmitting a UL control channel and a UL data channel to the BS through the single BWP of the BWP set based on the BWP configuration information and the frequency hopping configuration information.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: March 17, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10581560
    Abstract: Provided is a method of transceiving data via an uplink data channel for coverage expansion. The method may include establishing, by a base station, an uplink data channel enhancement mode for uplink data channel coverage enhancement of a user equipment; configuring a first downlink control information (DCI) format for the user equipment set with the uplink data channel enhancement mode; and transmitting the first DCI format via a downlink control channel.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: March 3, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10582357
    Abstract: Provided is a method of supporting Single Cell Point-to-Multi-point (SC-PTM) for a Bandwidth reduced Low complexity/Coverage Enhancement (BL/CE) terminal or an NB-IoT terminal, which are for a Machine Type Communication (MTC) application defined in a 3GPP LTE/LTE-A system. The method may include receiving configuration information of an NPDCCH search space from a base station, wherein the NPDCCH search space is separately configured to receive scheduling control information for the multicasting data channel; receiving the scheduling control information for the multicasting data channel through the NPDCCH search space configured based on the configuration information; and receiving the multicasting data channel based on the scheduling control information.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: March 3, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10582493
    Abstract: Provided are a method and an apparatus for allocating a resource of an uplink data channel of the narrowband Internet of things (NB IoT) user equipment to transmit and receive a data using a narrow band. The method may include receiving downlink control information (DCI) including a subcarrier indication field from a base station, configuring a wireless resource of an uplink data channel based on at least one of i) a subcarrier indication field and ii) subcarrier spacing information configured to the NB IoT user equipment, and transmitting an uplink data using a wireless resource of an uplink data channel.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: March 3, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10582539
    Abstract: The present disclosure proposes a method of supporting Single Cell Point-to-Multi-point (SC-PTM) for a Bandwidth reduced Low complexity/Coverage Enhancement (BL/CE) terminal or an NB-IoT terminal, which are for a Machine Type Communication (MTC) application defined in a 3GPP LTE/LTE-A system. Particularly, the present disclosure proposes a method of allocating a resource of a PDSCH for transmitting an SC-MTCH that is multicasting data information for a single cell group terminal.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: March 3, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Publication number: 20200059987
    Abstract: Provided are a method of a base station for controlling transmission and reception of data through a network slice. The method includes: receiving network slice request information from a terminal in which a network slice is configured; controlling so as to deliver the network slice request information to a core network entity; and receiving, from the core network entity, specific network slice information configured on the basis of the network slice request information.
    Type: Application
    Filed: November 2, 2017
    Publication date: February 20, 2020
    Applicant: KT CORPORATION
    Inventors: Sung-pyo HONG, Woo-jin CHOI
  • Publication number: 20200059393
    Abstract: Provided are a configuration method and a transmission method of a new reference signal for frequency offset estimation in a novel wireless communication system. The method may include configuring a synchronization signal to be transmitted through a first bandwidth part of one or more bandwidth parts configured by dividing an entire bandwidth into one or more parts, allocating the one or more reference signals for estimating the frequency offset on one or more resources other than a resource for configuring the synchronization signal, and transmitting the one or more reference signals for estimating the frequency offset.
    Type: Application
    Filed: September 28, 2017
    Publication date: February 20, 2020
    Applicant: KT Corporation
    Inventors: Ki-tae KIM, Woo-jin CHOI
  • Patent number: 10567939
    Abstract: Disclosed is a method and an apparatus for transmitting/receiving a signal by an MTC UE. The method may include: receiving information on the maximum coverage enhancement level from a base station; determining a coverage enhancement level value for transmitting an uplink signal on the basis of the information on the maximum coverage enhancement level; and repetitively transmitting, a predetermined number of times, the uplink signal according to the coverage enhancement level value.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: February 18, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Patent number: 10568071
    Abstract: Provided are a method and apparatus for transmitting an uplink signal by a Narrow Band Internet of things (IoT) UE. The method may include receiving, from a base station, uplink resource allocation information for transmitting HARQ ACK/NACK for downlink data, configuring a time-axis wireless resource and a frequency-axis wireless resource of an uplink signal including the HARQ ACK/NACK, based on the uplink resource allocation information, and transmitting the uplink signal through the time-axis wireless resource and frequency-axis wireless resource.
    Type: Grant
    Filed: January 25, 2017
    Date of Patent: February 18, 2020
    Assignee: KT CORPORATION
    Inventors: Kyujin Park, Woo-jin Choi
  • Publication number: 20200022141
    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: Application
    Filed: August 15, 2019
    Publication date: January 16, 2020
    Applicant: KT CORPORATION
    Inventors: Seunghyun KANG, Woo-jin CHOI