Patents by Inventor Bin-Chul Ihm

Bin-Chul Ihm 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 and apparatus for measuring channel quality indicator in wireless communication system
    Patent number: 9578532
    Abstract: Provided are a method and an apparatus for measuring channel quality indicator in a wireless communication system. User equipment receives, from a base station, at least one of a cell-specific reference signal (CRS) which is cell-specifically transmitted and a channel state information reference signal (CSI RS). The user equipment also receives, from the base station, a demodulation reference signal (DMRS) which is user equipment-specifically transmitted in an enhanced physical downlink control channel (e-PDCCH) region constituted in a physical downlink shared channel (PDSCH) region. The terminal measures the CQI based on either at least one of the CRS and the CSI RS or the DMRS.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: February 21, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jin Young Chun, Bin Chul Ihm, Ji Won Kang, Ki Tae Kim, Sung Ho Park, Su Nam Kim
  • Method for performing an adaptive modulation and coding scheme in mobile communication system
    Patent number: 9577862
    Abstract: A method for performing an adaptive modulation and coding scheme in a mobile communication system. Including receiving a signal and selecting a modulation and coding scheme (MCS) level from an MCS subset of an MCS set considering information derived from the signal, by a mobile station. The MCS subset is selected in accordance with a service type related to the mobile station and the MCS subset is configured with one or more MCS levels, the MCS set is represented by 5 bits and the MCS subset is represented by 4 bits to indicate MCS value, respectively, and the 4 bits of the MCS subset is a part of the 5 bits of the MCS set.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: February 21, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Moon Il Lee, Bin Chul Ihm, Jin Young Chun, Sung Ho Park, Hyun Soo Ko, Wook Bong Lee
  • Efficient control information transmission method and apparatus for supporting multiple antenna transmission technique
    Patent number: 9572142
    Abstract: The present invention relates to a wireless communication system and provides an efficient control information transmission method and apparatus for supporting a multiple antenna transmission technique. A method is provided for transmitting downlink hybrid automatic repeat request (HARQ) information related to an uplink multiple codeword transmission and includes receiving the uplink multiple codeword transmission, generating HARQ information related to each of the multiple codewords based on a result of decoding each of the multiple codewords, modulating the HARQ information, and transmitting the modulated HARQ information via one or more physical HARQ indicator channels (PHICHs).
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: February 14, 2017
    Assignee: LG Electronics Inc.
    Inventors: Hyun Soo Ko, Jae Hoon Chung, Bin Chul Ihm, Moon Il Lee
  • Data transmission device and method in a wireless communications system
    Patent number: 9553645
    Abstract: The present invention provides a data transmission device and method in a wireless communication system. The device comprises a processor which is connected with the M antennas and which is formed so as to generate data to be transmitted through the M antennas, on the basis of a precoding matrix; the precoding matrix is generated based on a plurality of matrices; and a first matrix, which is one matrix among the plurality of matrices, is selected from within a codebook for N antennas (where N<M).
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: January 24, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Moon Il Lee, Ja Ho Koo, Hyun Soo Ko, Jae Hoon Chung, Bin Chul Ihm, Yeong Hyeon Kwon
  • Method and apparatus for measuring interference in a wireless communication system
    Patent number: 9554298
    Abstract: Provided are a method and apparatus for measuring interference in a wireless communication system. A terminal receives, from a base station, a zero-power channel state information (CSI) reference signal (RS) indicator that indicates whether or not to estimate interference using a zero-power CSI RS signal, and, according to the zero-power CSI RS indicator, measures interference on the basis of the zero-power CSI RS.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: January 24, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jin Young Chun, Ki Tae Kim, Su Nam Kim, Ji Won Kang, Bin Chul Ihm, Sung Ho Park
  • Method and apparatus for allocating control channel in wireless communication system
    Patent number: 9544107
    Abstract: Provided are a method and an apparatus for allocating a control channel in a wireless communication system. A base station allocates an enhanced physical downlink control channel (e-PDCCH) to a localized region within a physical downlink shared channel (PDSCH) region, allocates the e-PDCCH to a distributed region within the PDSCH region, and transmits a scheduling assignment via the allocated e-PDCCH.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: January 10, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Jin Young Chun, Bin Chul Ihm, Ji Won Kang, Ki Tae Kim, Sung Ho Park, Su Nam Kim
  • METHOD AND APPARATUS FOR TRANSMITTING CHANNEL STATE INFORMATION IN MULTI-NODE SYSTEM
    Publication number: 20170005767
    Abstract: A method and a base station (BS) for receiving channel state information are discussed. The method according to an embodiment includes transmitting a radio resource control (RRC) signal to a user equipment (UE), the RRC signal including a plurality of configurations for periodic channel state information (CSI) reports; transmitting, to the UE, a plurality of CSI reference signals (CSI-RSs); and receiving, from the UE, generated CSI for the plurality of CSI-RSs based on the RRC signal. Each of the plurality of configurations for the periodic CSI reports includes an indicator indicating an uplink subframe to be used, by the UE, for transmitting CSI corresponding to a specific one of the periodic CSI reports.
    Type: Application
    Filed: September 19, 2016
    Publication date: January 5, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Ji Won KANG, Jin Young CHUN, Ki Tae KIM, Su Nam KIM, Bin Chul IHM, Sung Ho PARK
  • Method and apparatus for transmitting signal in wireless communication system
    Patent number: 9520925
    Abstract: A method and apparatus for transmitting a signal in a wireless communication system are provided. The method includes: generating R spatial stream each of which is generated on the basis of an information stream and reference signal; generating N transmit streams on the basis of the R spatial streams and a precoding matrix (where R<N); mapping the N transmit streams to at least one resource block; and generating N signals from the N transmit streams mapped to the at least one resource block, and the transmitting the N signals to a user equipment through respective antennas.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: December 13, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Moon Il Lee, Wook Bong Lee, Ja Ho Koo, Hyun Soo Ko, Jae Hoon Chung, Bin Chul Ihm
  • METHOD FOR TRANSMITTING AND RECEIVING DOWNLINK CONTROL INFORMATION
    Publication number: 20160359535
    Abstract: A method for efficiently transmitting and receiving downlink control information is disclosed. The method includes, at a base station, receiving feedback information including a precoding matrix index (PMI) from a user equipment (UE) and transmitting precoding information having a predetermined bit number according to the number of antenna ports and a transmission mode of the base station. The precoding information of a predetermined transmission mode in the precoding information includes confirmation information indicating that the base station uses a PMI which is recently received from the UE.
    Type: Application
    Filed: August 22, 2016
    Publication date: December 8, 2016
    Inventors: Moon IL LEE, Hyun Soo KO, Bin Chul IHM, Wook Bong LEE, Jae Hoon CHUNG, Jin Young CHUN
  • Method and apparatus for allocating a downlink control channel in a wireless communication system
    Patent number: 9515796
    Abstract: Provided are a method and apparatus for allocating a downlink control channel in a wireless communication system. A base station allocates a downlink control channel to cell-specific reference signal (CRS) resource elements (REs) capable of transmitting a CRS and transmits a downlink control signal to a terminal through the allocated downlink control channel.
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: December 6, 2016
    Assignee: LG Electronics Inc.
    Inventors: Jin Young Chun, Ki Tae Kim, Su Nam Kim, Ji Won Kang, Bin Chul Ihm, Sung Ho Park
  • METHOD OF RESOLVING OVERLAPS IN DATA TRANSMISSION AND USER EQUIPMENT THEREFOR
    Publication number: 20160353438
    Abstract: A method of a user equipment (UE) operating in a wireless communication system is provided. The UE transmits a first subframe. The UE transmits a second subframe following the first subframe consecutively. When the first subframe and the second subframe are overlapped, the first subframe is transmitted completely while the second subframe is transmitted partially.
    Type: Application
    Filed: August 8, 2016
    Publication date: December 1, 2016
    Applicant: LG ELECTRONICS INC.
    Inventors: Joon Kui AHN, Ki Jun KIM, Bin Chul IHM, Young Woo YUN
  • Apparatus for transmitting and receiving data in a wireless communication system and method thereof
    Patent number: 9510323
    Abstract: An apparatus for transmitting and receiving data in a wireless communication system method thereof are disclosed. In a terminal of a wireless communication system, the present invention includes receiving a physical downlink control channel (hereinafter abbreviated PDCCH), receiving a physical downlink shared channel (hereinafter abbreviated PDSCH), and demodulating the PDSCH by interpreting the PDCCH according to a type of a subframe including the PDCCH and the PDSCH.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: November 29, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Moon Il Lee, Seung Hee Han, Jae Hoon Chung, Hyun Soo Ko, Bin Chul Ihm
  • Method and apparatus for transmitting aperiodic channel state information in wireless communication system
    Patent number: 9509481
    Abstract: A method performed by a base station (BS) is provided for receiving aperiodic channel state information (CSI). The BS transmits a CSI request field which is set to trigger a CSI report to a user equipment (UE), and receives CSI through a physical uplink shared channel (PUSCH) from the UE. The CSI request field has a value among a plurality of candidate values and the plurality of candidate values comprises a first value which triggers an aperiodic CSI report for a first set of reference signals and a second value which triggers an aperiodic CSI report for a second set of reference signals. The first set and the second set of reference signals are configured by a higher layer signal.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: November 29, 2016
    Assignee: LG Electronics Inc.
    Inventors: Ji Won Kang, Jin Young Chun, Ki Tae Kim, Su Nam Kim, Bin Chul Ihm, Sung Ho Park
  • Method and apparatus for channel information feedback in a wireless communication system
    Patent number: 9509388
    Abstract: Provided are a method and apparatus for channel information feedback in a wireless communication system. A terminal may receive CSI-RS configuration information from a base station and generate channel information using a codebook determined in accordance with the number of CSI-RS patterns set by the CSI-RS configuration information. The base station may transmit CSI-RS patterns allocated to a plurality of nodes through a method for expanding a field within one control message.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: November 29, 2016
    Assignee: LG Electronics Inc.
    Inventors: Ji Won Kang, Ki Tae Kim, Su Nam Kim, Sung Ho Park, Jin Young Chun, Bin Chul Ihm
  • Method and apparatus for transmitting downlink reference signal in wireless communication system that supports multiple antennas
    Patent number: 9503236
    Abstract: A method for transmitting reference signals for eight or fewer antenna ports includes mapping a portion of common reference signals (CRSs) for four or fewer antenna ports into a downlink subframe including 1st slot and 2nd slot with a normal cyclic prefix configuration; mapping channel status information reference signals (CSI-RSs) for eight or fewer antenna ports into the downlink subframe according to a preset pattern; and transmitting the downlink subframe into which the CRSs and the CSI-RSs are mapped, wherein the preset pattern defines the CSI-RSs for eight or fewer antenna ports to be mapped onto two OFDM symbols of the data region in the downlink subframe, with the two OFDM symbols being spaced apart by one OFDM symbol, and wherein the portion of the CRSs for four or fewer antenna ports is limited to the CRSs for two or fewer antenna ports.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: November 22, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyun Soo Ko, Bin Chul Ihm, Moon Il Lee, Jae Hoon Chung, Seung Hee Han
  • METHOD AND DEVICE FOR CONTROLLING TRANSMISSION POWER IN UPLINK TRANSMISSION
    Publication number: 20160338017
    Abstract: A user equipment in wireless communication system is provided. The user equipment includes an antenna unit including a plurality of antennas, a control unit for grouping the plurality of antennas into a predetermined number of antenna groups and controlling separately transmission power of each of the predetermined number of antenna groups, and a transmitting unit, connected to the control unit, for transmitting at least one of data and control information to a base station via at least one of the predetermined number of antenna groups.
    Type: Application
    Filed: July 28, 2016
    Publication date: November 17, 2016
    Applicant: LG ELECTRONICS INC.
    Inventors: Moon Il LEE, Jae Hoon CHUNG, Hyun Soo KO, Bin Chul IHM, Yeong Hyeon KWON
  • Method and apparatus for transmitting control information for reduction of inter-cell interference in wireless communication system
    Patent number: 9497757
    Abstract: A method and apparatus of transmitting control information for reduction of inter-cell interference (ICI) in a wireless communication system is provided. The base station transmits one of precoding information and antenna information for every time frequency resource to a second base station based on a ICI reduction method determined by the base station.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: November 15, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Ki Tae Kim, Jin Young Chun, Su Nam Kim, Ji Won Kang, Bin Chul Ihm, Sung Ho Park
  • Method and apparatus for searching for control channel in multi-node system
    Patent number: 9497737
    Abstract: Provided are a method for searching for a control channel by a user terminal in a multi-node system and a user terminal using the method. The method comprises: setting a first common search space (CSS) and a second CSS, which are distinguishable, in a subframe comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols; and searching for control information from the first CSS and/or the second CSS, wherein in the first CSS a first piece of control information that is cyclic redundancy check (CRC)-scrambled by a radio network temporary identifier (RNTI) belonging to a first RNTI set is searched, and wherein in the second CSS a second piece of control information that is CRC-scrambled by an RNTI belonging to a second RNTI set is searched.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: November 15, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Bin Chul Ihm, Ki Tae Kim, Su Nam Kim, Ji Won Kang, Jin Young Chun, Sung Ho Park
  • Method and device for controlling transmission power in uplink transmission
    Patent number: 9480024
    Abstract: A user equipment in wireless communication system is provided. The user equipment includes an antenna unit including a plurality of antennas, a control unit for grouping the plurality of antennas into a predetermined number of antenna groups and controlling separately transmission power of each of the predetermined number of antenna groups, and a transmitting unit, connected to the control unit, for transmitting at least one of data and control information to a base station via at least one of the predetermined number of antenna groups.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: October 25, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Moon Il Lee, Jae Hoon Chung, Hyun Soo Ko, Bin Chul Ihm, Yeong Hyeon Kwon
  • Method and apparatus for detecting control channel in wireless communication system
    Patent number: 9467990
    Abstract: Provided are a method for searching for a control channel by a terminal in a wireless communication system and a terminal for using the method. The method determines whether an allocation unit constituting an enhanced-physical downlink control channel (E-PDCCH) is one or plural in number; and, if the allocation unit constituting the E-PDCCH is plural in number, searches for the E-PDCCH using a user equipment specific reference signal (URS) of an antenna port defined in one allocation unit from among the plurality of allocation units.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: October 11, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Bin Chul Ihm, Ki Tae Kim, Su Nam Kim, Ji Won Kang, Jin Young Chun, Sung Ho Park