Patents by Inventor Ju-Ho Lee

Ju-Ho Lee 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).

  • Method for time synchronization of domain based on time information of vehicle
    Patent number: 10341972
    Abstract: A time synchronization method performed by a communication node in a vehicle includes: receiving, from a road side unit (RSU), a first frame including time information of a first domain to which the RSU belongs; setting a time of the vehicle based on a time indicated by the time information of the first domain; and transmitting a second frame including the time information of the vehicle.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: July 2, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-University Cooperation Foundation Hanyang University
    Inventors: Seong Jin Park, Woo Sub Kim, SungKwon Park, Ju Ho Lee
  • Method and apparatus for transmitting and receiving backhaul subframe channel in wireless communication system
    Patent number: 10305648
    Abstract: The present invention relates to a method for transmitting a backhaul sub frame channel of a base station in a wireless communication system. The method for transmitting a backhaul sub frame channel according to one embodiment of the present invention comprises: creating a downlink relay control channel by coding downlink relay control information that is transmitted to a relay; allocating the created downlink relay control channel to a first slot of a semi-static resource region that is allocated to the relay; and transmitting, to the relay, a backhaul sub frame to which the channel is allocated. Compared to existing control channel transmission techniques, the present invention can minimize overheads. Moreover, the present invention also reduces control channel resources required during retransmission and for the transmission of multiple backhaul subframes.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: May 28, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyoung Ju Ji, Joon Young Cho, Ju Ho Lee, In Ho Lee
  • SCHEME FOR PERFORMING A DATA SESSION VIA A WI-FI ACCESS IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20190141627
    Abstract: A method for performing a data session via a Wi-Fi access of a user equipment (UE) in a cellular network is provided. The method includes maintaining a look-up table including at least an entry, the entry including a Wi-Fi identifier of a Wi-Fi access point (AP) and location information of the Wi-Fi AP, determining whether a user preference for a Wi-Fi connection is set to ON or OFF, checking whether at least one matched entry of the look-up table is found based on current location information of the UE, scanning to discover the Wi-Fi AP, connecting to a Wi-Fi AP corresponding to the matched entry based on a result of the determining, and performing a data session via a Wi-Fi access to the connected Wi-Fi AP.
    Type: Application
    Filed: January 7, 2019
    Publication date: May 9, 2019
    Inventors: Basavaraj Jayawant PATTAN, Mangesh Abhimanyu INGALE, Ju-Ho LEE
  • APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DOWNLINK DATA CHANNEL SIGNAL TRANSMISSION INFORMATION IN CELLULAR RADIO COMMUNICATION SYSTEM USING COOPERATIVE MULTI-POINT SCHEME
    Publication number: 20190141689
    Abstract: An apparatus and a method for transmitting/receiving downlink data channel signal transmission information in a cellular radio communication system using a Cooperative Multi-Point (CoMP) scheme are provided. In the downlink data channel signal transmission information transmission method, a Base Station (BS) transmits downlink data channel signal transmission information including information related to Resource Elements (REs) scheduled for a downlink data channel signal transmission to a User Equipment (UE), and transmits downlink data channel signal non-transmission information including information related to REs through which a downlink data channel signal is not transmitted among the REs scheduled for the downlink data channel signal transmission to the UE.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 9, 2019
    Inventors: Hyo-Jin LEE, Youn-Sun KIM, Ki-Il KIM, Hyoung-Ju JI, Joon-Young CHO, Ju-Ho LEE
  • Method and apparatus for transmitting/receiving CSI in cellular communication system supporting carrier aggregation
    Patent number: 10284274
    Abstract: A Channel Status Information (CSI) transmission method and apparatus of a terminal are provided for use in a wireless communication system. In the wireless communication system supporting carrier aggregation, the terminal transmits the CSIs of component carriers without conflict of their transmission time points, resulting in an improvement of system performance. In a case where the transmission time points are determined to overlap unavoidably, the terminal transmits the CSI as compressed.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: May 7, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Bum Kim, Joon Young Cho, Ju Ho Lee, Jin-Kyu Han, Hyoung Ju Ji
  • Method for time synchronization of domain based on time information of vehicle
    Patent number: 10264614
    Abstract: Disclosed are time synchronization methods for domains based on time information of a vehicle. A time synchronization method performed by a first end node belonging to a first domain of a vehicle includes: receiving a first frame including time information from the vehicle; changing the first end node to a grand master node of the first domain when the time information indicates a time of a universal time domain; and synchronizing a time of the grand master node with the time of the universal time domain.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: April 16, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Industry-University Cooperation Foundation Hanyang University
    Inventors: Seong Jin Park, Woo Sub Kim, Ju Ho Lee, SungKwon Park
  • Method and apparatus for generating feedback in a communication system
    Patent number: 10263680
    Abstract: Methods and apparatuses are provided for reporting channel status by a user equipment (UE) in a communication system. Information on at least one channel status information reference signal is received from an evolved node B. A first channel status based on a first period and a first set of the at least one channel status information reference signal, is reported to the evolved node B. A second channel status based on a second period and a second set of the at least one channel status information reference signal, is reported to the evolved node B. The first channel status includes at least one of a precoding matrix indicator (PMI), a channel quality indicator (CQI), and a ranking indication (RI), and the second channel status includes at least one of a CQI, a PMI and a RI. The RI of the second channel status is same as the RI of the first channel status.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: April 16, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hyo-Jin Lee, Youn-Sun Kim, Ju-Ho Lee
  • METHOD AND APPARATUS FOR SENDING AND RECEIVING CONTROL CHANNEL IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20190097778
    Abstract: In a wireless communication system, a control channel is required in order to use limited resources effectively. However, the control channel resource is part of the system overhead, and thus reduces the data channel resource used for data transmission. In the long term evolution (LTE) system based on OFDM, one sub frame the consists of fourteen OFDM symbols wherein a maximum of three OFDM symbols are used for the control channel resource and remaining eleven OFDM symbols are used for the data channel resource. Therefore, the quantity of energy that can be transmitted for the control channel resource is extremely limited compared to the data channel resource. For this reason, the coverage of the control channel becomes less than that of the data channel, and even if a user can successfully receive the data channel, reception failure of a control channel sometimes results in failure of data recovery.
    Type: Application
    Filed: November 23, 2018
    Publication date: March 28, 2019
    Inventors: In Ho LEE, Jin Kyu HAN, Ju Ho LEE, Jae Chon YU
  • Method and apparatus for transmitting and receiving data in wireless communication systems
    Patent number: 10237860
    Abstract: The present invention relates to a method for transmitting data from a base station to a terminal in a wireless communication system, wherein the method includes the steps of: determining a terminal for transmitting downlink data; when the downlink data is transmitted, confirming the kind of subframe in which the downlink data is transmitted; when the subframe is a normal subframe, transmitting the downlink data on the basis of a cell specific reference signal (CRS) or a demodulation reference signal (DMRS); and, when the subframe is a multimedia broadcast multicast service signal frequency network (MBSFN) subframe, transmitting the downlink data on the basis of the DMRS.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: March 19, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youn-Sun Kim, Ki-Il Kim, Ju-Ho Lee, Hyo-Jin Lee, Joon-Young Cho, Hyoung-Ju Ji, Seung-Hoon Choi
  • Apparatus and method for allocating code resources to uplink ACK/NACK channels in a cellular wireless communication system
    Patent number: 10225060
    Abstract: A method and apparatus are provided for allocating code resources to ACK/NACK channel indexes, when UEs need ACK/NACK transmission in a wireless communication system in which a predetermined number of orthogonal cover Walsh codes is selected from among available orthogonal cover Walsh codes, at least one subset is formed, having the selected orthogonal cover Walsh codes arranged in an ascending order of cross interference, subsets are selected for use in first and second slots of a subframe, and the orthogonal cover Walsh codes of the subset selected for each slot and ZC sequence cyclic shift values are allocated to the ACK/NACK channel indexes.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: March 5, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Aris Papasakellariou, Joon-Young Cho, Jianzhong Zhang, Zhouyue Pi, Ju-Ho Lee
  • Method and apparatus for adapting bandwidth of terminal in wireless communication system
    Publication number: 20190059078
    Abstract: Methods and apparatuses for adapting a bandwidth of a terminal in a wireless communication system are provided. The method includes transmitting, to a base station (BS), information about bandwidth adaptation capability of the terminal, receiving, from the BS, a bandwidth adaptation command for requesting adaptation to a bandwidth corresponding to the bandwidth adaptation capability of the terminal, and adapting the bandwidth of the terminal in at least one symbol location in a unit time period of a subframe, based on the received bandwidth adaptation command.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 21, 2019
    Inventors: Hoon-dong Noh, Young-woo Kwak, Ju-ho Lee
  • LOW POWER DRIVING SYSTEM AND TIMING CONTROLLER DISPLAY APPARATUS
    Publication number: 20190043409
    Abstract: The present invention discloses a low power driving system and timing controller for a display apparatus. The low power driving system may include: a timing controller configured to divide a display pattern into a static pattern and a dynamic pattern based on a difference between previous line data and current line data, and transmit a packet into which one of first option information corresponding to the static pattern and second option information corresponding to the dynamic pattern is applied; and a source driver configured to receive the packet, and perform a low power mode corresponding to the static pattern according to the first option information or perform adaptive charge sharing corresponding to the dynamic pattern according to the second option information.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 7, 2019
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Nam Seok SEO, Young Kwang KIM, Young Bok KIM, Hyun Mo YANG, Hae Won LEE, Ju Ho LEE
  • Electromagnetic wave shielding thin film, electronic device provided with electromagnetic wave shielding thin film and shielding structure, and method for manufacturing electromagnetic wave shielding thin film
    Patent number: 10195661
    Abstract: An electromagnetic wave shielding thin film for shielding from electromagnetic waves generated in an electronic part is provided. The electromagnetic wave shielding thin film includes metal plate which has elastic limit of 1% or more, strength of 1000 MPa or more, and a volume fraction of an amorphous phase of 50% or more.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: February 5, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-man Park, Keum-hwan Park, Eun-soo Park, Ju-ho Lee
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL CHANNELS BY RESTRICTING A SET OF THE CONTROL CHANNELS IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20190037547
    Abstract: A method and apparatus are provided for transmitting and receiving control information in a wireless communication system. A method in a base station includes identifying an offset value and a number of control channel candidates corresponding to a number of control channel elements (CCEs) constituting one control channel candidate; determining indexes of control channel candidates based on the identified offset value and the identified number of control channel candidates; and transmitting the control information to the terminal through at least one of the control channel candidates in a downlink control channel.
    Type: Application
    Filed: October 1, 2018
    Publication date: January 31, 2019
    Inventors: Yong-Jun KWAK, Hwan-Joon KWON, Joon-Young CHO, Ju-Ho LEE, Jin-Kyu HAN, Youn-Hyoung HEO, Ping WANG
  • METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING CSI IN CELLULAR COMMUNICATION SYSTEM SUPPORTING CARRIER AGGREGATION
    Publication number: 20190028169
    Abstract: A Channel Status Information (CSI) transmission method and apparatus of a terminal are provided for use in a wireless communication system. In the wireless communication system supporting carrier aggregation, the terminal transmits the CSIs of component carriers without conflict of their transmission time points, resulting in an improvement of system performance. In a case where the transmission time points are determined to overlap unavoidably, the terminal transmits the CSI as compressed.
    Type: Application
    Filed: September 24, 2018
    Publication date: January 24, 2019
    Inventors: Young Bum KIM, Joon Young CHO, Ju Ho LEE, Jin-Kyu HAN, Hyoung Ju JI
  • Apparatus and method for transmitting/receiving downlink data channel signal transmission information in cellular radio communication system using cooperative multi-point scheme
    Patent number: 10178660
    Abstract: An apparatus and a method for transmitting/receiving downlink data channel signal transmission information in a cellular radio communication system using a Cooperative Multi-Point (CoMP) scheme are provided. In the downlink data channel signal transmission information transmission method, a Base Station (BS) transmits downlink data channel signal transmission information including information related to Resource Elements (REs) scheduled for a downlink data channel signal transmission to a User Equipment (UE), and transmits downlink data channel signal non-transmission information including information related to REs through which a downlink data channel signal is not transmitted among the REs scheduled for the downlink data channel signal transmission to the UE.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: January 8, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo-Jin Lee, Youn-Sun Kim, Ki-Il Kim, Hyoung-Ju Ji, Joon-Young Cho, Ju-Ho Lee
  • Scheme for performing a data session via a Wi-Fi access in a wireless communication system
    Patent number: 10178611
    Abstract: A method for performing a data session via a Wi-Fi access of a user equipment (UE) in a cellular network is provided. The method includes maintaining a look-up table including at least an entry, the entry including a Wi-Fi identifier of a Wi-Fi access point (AP) and location information of the Wi-Fi AP, determining whether a user preference for a Wi-Fi connection is set to ON or OFF, checking whether at least one matched entry of the look-up table is found based on current location information of the UE, scanning to discover the Wi-Fi AP, connecting to a Wi-Fi AP corresponding to the matched entry based on a result of the determining, and performing a data session via a Wi-Fi access to the connected Wi-Fi AP.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 8, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Basavaraj Jayawant Pattan, Mangesh Abhimanyu Ingale, Ju-Ho Lee
  • Method and apparatus for supporting multiple reference signals in OFDMA communication systems
    Patent number: RE47259
    Abstract: Methods and apparatuses are described for a Node B to transmit Reference Signals (RS) from multiple antennas to enable User Equipments (UEs) to perform demodulation of received information signals and to estimate Channel Quality Indication (CQI) metrics. To minimize overhead and enable backward compatible operation with legacy systems, RS from a first set of Node B antennas are transmitted in every transmission time interval and substantially over the whole operating BandWidth (BW). RS from a second set of Node B antennas serving for CQI estimation are periodically transmitted, substantially over the whole operating BW, with transmission period informed to UEs through broadcast signaling by the Node B and starting transmission sub-frame determined from the identity of the cell served by the Node B.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: February 26, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Aris Papasakellariou, Joon-Young Cho, Ju-Ho Lee, Jin-Kyu Han
  • Method and apparatus for supporting multiple reference signals in OFDMA communication systems
    Patent number: RE47326
    Abstract: Methods and apparatuses are described for a Node B to transmit Reference Signals (RS) from multiple antennas to enable User Equipments (UEs) to perform demodulation of received information signals and to estimate Channel Quality Indication (CQI) metrics. To minimize overhead and enable backward compatible operation with legacy systems, RS from a first set of Node B antennas are transmitted in every transmission time interval and substantially over the whole operating BandWidth (BW). RS from a second set of Node B antennas serving for CQI estimation are periodically transmitted, substantially over the whole operating BW, with transmission period informed to UEs through broadcast signaling by the Node B and starting transmission sub-frame determined from the identity of the cell served by the Node B.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: March 26, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Aris Papasakellariou, Joon-Young Cho, Ju-Ho Lee, Jin-Kyu Han
  • Method and apparatus for supporting multiple reference signals in OFDMA communication systems
    Patent number: RE47344
    Abstract: Methods and apparatuses are described for a Node B to transmit Reference Signals (RS) from multiple antennas to enable User Equipments (UEs) to perform demodulation of received information signals and to estimate Channel Quality Indication (CQI) metrics. To minimize overhead and enable backward compatible operation with legacy systems, RS from a first set of Node B antennas are transmitted in every transmission time interval and substantially over the whole operating BandWidth (BW). RS from a second set of Node B antennas serving for CQI estimation are periodically transmitted, substantially over the whole operating BW, with transmission period informed to UEs through broadcast signaling by the Node B and starting transmission sub-frame determined from the identity of the cell served by the Node B.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: April 9, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Aris Papasakellariou, Joon-Young Cho, Ju-Ho Lee, Jin-Kyu Han