Patents by Inventor Byoung Hoon Kim

Byoung Hoon Kim 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 transmitting reference signal for reducing intercell interference in multiple input multiple output communication system
    Patent number: 9100866
    Abstract: According to one embodiment, a method for receiving a Channel State Information-Reference Signal (CSI-RS) for measuring a channel includes: receiving CSI-RSs on resource elements (REs) in a subframe configured for the CSI-RSs from a base station, wherein if each CSI-RS of the received CSI-RSs is transmitted from each of four or more transmit antenna ports of the base station, at least two REs on which each CSI-RS is received are associated with each of the four or more transmit antenna ports; and transmitting channel state information based on the received CSI-RSs.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: August 4, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Eun Sun Kim, Ki Jun Kim, Hak Seong Kim, Han Byul Seo, Byoung Hoon Kim
  • Method for transceiving signals between a base station and a relay node in a multiuser multi-antenna wireless communication system, and apparatus for same
    Patent number: 9100144
    Abstract: The present disclosure relates to a method in which a base station transmits signals to a relay node in a multiuser multi-antenna (MIMO) wireless communication system. More particularly, the method includes: allocating one or more antenna ports to one or more relay nodes, respectively; mapping each of a plurality of downlink grant signals for the one or more relay nodes to a preset resource domain from among resource domains corresponding to one of the allocated antenna ports; mapping uplink grant signals or data signals for the one or more relay nodes to the resource domains corresponding to the allocated antenna ports; and transmitting the mapped signals to the one or more relay nodes.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: August 4, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Hak Seong Kim, Han Byul Seo, Byoung Hoon Kim, Ki Jun Kim, Dae Won Lee
  • Apparatus and method for allocating frequency resource to micro UE in a mobile communication system
    Patent number: 9094980
    Abstract: A method and apparatus for allocating a frequency resource to each micro User Equipment (UE) in a hierarchical cellular mobile communication system are disclosed. The method includes acquiring information about traffic of each macro UE or a macro BS in a frequency resource allocated to the macro UE or the macro BS, first Signal-to-Noise Ratio (SNR) information about an SNR of a signal from the macro UE or the macro BS, measured at each micro UE and second SNR information about an SNR of a signal from the micro UE, measured at each micro BS, calculating throughput of the micro UE using the traffic information, the first SNR information and the second SNR information, determining a frequency resource to be allocated to the micro UE using information about the calculated throughput and allocating the determined frequency resource to the micro UE.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: July 28, 2015
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Junho Jo, Byoung Hoon Kim, Jihyun Lee, Hano Wang, Dae Sik Hong, Go San Noh
  • METHOD FOR ALLOCATING BACKHAUL LINK RESOURCES IN RELAY COMMUNICATION SYSTEM, AND METHOD & APPARATUS FOR TRANSMITTING & RECEIVING DATA USING SAME
    Publication number: 20150201403
    Abstract: A method and a base station are described for transmitting a downlink signal in a wireless communication system. A configuration of orthogonal frequency division multiplexing (OFDM) symbols for a first partition of a subframe are transmitted through high layer signaling. A relay-physical downlink control channel (R-PDCCH) contained in the first partition of the subframe is transmitted. If the R-PDCCH contains a downlink assignment, the first partition of the subframe is configured to be not used for a physical downlink shared channel (PDSCH) transmission.
    Type: Application
    Filed: January 22, 2015
    Publication date: July 16, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Han-Byul SEO, Byoung-Hoon KIM, Ki-Jun KIM, Hak-Seong KIM
  • Scheduling method, MS apparatus using the scheduling method, data transmission method, and BS apparatus using the data transmission method in a wireless communication system
    Patent number: 9084278
    Abstract: The method for scheduling, at an MS, data transmission and reception of neighbor BSs adjacent to the MS in a wireless communication system includes receiving number information through a specific downlink channel in a first time unit from each of the neighbor BSs, determining, among the neighbor BSs, a BS which is to transmit and receive data in a second time unit, in a predefined rule, according to the number information and fairness information based on one or more of a number of MSs within a cell served by each of the neighbor BSs and a number of time units that each of the neighbor BSs used previously for data transmission and reception, and transmitting a signal indicating that data transmission and reception in the second time unit are not possible, to the other neighbor BSs excluding the determined BS among the neighbor BSs.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: July 14, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Byoung Hoon Kim, Seo Woo Jang, Jun Ho Jo
  • Backhaul downlink signal decoding method of relay station and relay station using same
    Patent number: 9083435
    Abstract: A method of decoding a backhaul downlink signal of a relay node (RN), the method includes receiving a higher layer signal indicating a maximum transmission rank from a base station (BS), receiving control information through a relay control channel from the BS, and demodulating the control information, wherein the control information is mapped to resource elements which do not overlap with user equipment-specific reference signal resource elements (URS REs) in a control region which is used for the relay control channel transmission of the BS, the URS REs being reserved resource elements for user equipment-specific reference signals (URSs) according to the maximum transmission rank, and wherein the control information is demodulated based on user equipment-specific reference signals transmitted by the BS on one fixed antenna port n, where n is a natural number.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: July 14, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Dae Won Lee, Byoung Hoon Kim, Hak Seong Kim, Ki Jun Kim
  • Femto base station and method for managing resource thereof
    Patent number: 9084271
    Abstract: A method for managing radio resource of a femto cell includes: providing, by the femto cell, a service to one or more UEs by using most of pre-set radio resource; receiving measurement results from the one or more UEs; determining whether or not one or more neighbor femto cells are closely located nearby based on the measurement results; and if it is determined that neighbor femto cells are closely located nearby, reducing the pre-set radio resource into a small radio resource and providing a service with the small radio resource.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: July 14, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Jun-Ho Jo, Seo-Woo Jang, Jae-Won Lim, Byoung-Hoon Kim
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING SIGNAL FROM RELAY STATION IN RADIO COMMUNICATION SYSTEM
    Publication number: 20150188676
    Abstract: A method of transmitting a signal, performed by a base station, in a wireless communication system. The method according to one embodiment includes transmitting a backhaul downlink signal to a relay station through a backhaul downlink transmission subframe. The backhaul downlink transmission subframe includes 14 orthogonal frequency division multiplexing (OFDM) symbols and the 14 OFDM symbols are indexed 0 to 13.
    Type: Application
    Filed: March 13, 2015
    Publication date: July 2, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Hak Seong KIM, Soon Yil KWON, Han Byul SEO, Young Seob CHOI, Byoung Hoon KIM, Ki Jun KIM
  • Edge Dam Upper Portion Sealing Apparatus for Twin Roll Strip Caster
    Publication number: 20150174649
    Abstract: There is provided an edge dam upper portion sealing apparatus for a twin roll strip caster. The edge dam upper portion sealing apparatus may include: a sealing pad making tight contact with an upper portion of an edge dam and a lateral side of a meniscus shield of the twin roll strip caster; a bearing member coupled to the sealing pad; and a driving unit connected to the bearing member and coupled to at least two links for forming a link structure.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 25, 2015
    Inventors: Kwang-Seok Hwang, Cheol-Min Park, Oh-Seong Kweon, Jae-Bong Park, Byoung-Hoon Kim
  • Transmission of information using cyclically shifted sequences
    Patent number: 9065714
    Abstract: Techniques for transmitting information using cyclically shifted sequences are described. In one design, first and second sequences may be generated by cyclically shifting a base sequence by first and second amounts, respectively. The base sequence may be a CAZAC sequence, a PN sequence, or some other sequence having good correlation properties. The cyclic shifts for the first and second sequences may be determined based on a hopping pattern. A first modulated sequence may be generated based on the first sequence and a first modulation symbol and may be sent in a first time interval. A second modulated sequence may be generated based on the second sequence and a second modulation symbol and may be sent in a second time interval. Each modulated sequence may be sent on K consecutive subcarriers using localized frequency division multiplexing (LFDM).
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: June 23, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Durga Prasad Malladi, Byoung-Hoon Kim
  • Method for transmitting control channel to relay node in wireless communication system and apparatus thereof
    Patent number: 9066343
    Abstract: A method for receiving a Relay Physical Downlink Control CHannel (R-PDCCH) by a User Equipment (UE) in a wireless communication system. The method includes receiving a downlink subframe including one or more aggregated resource blocks including resource elements. The resource elements are mapped in increasing order of first a subcarrier index, and then a symbol index. The method further includes monitoring the R-PDCCH on the one or more aggregated resource blocks. The one or more aggregated resource blocks are numbered based on an aggregation level and a number of the one or more aggregated resource blocks corresponding to the aggregation level.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: June 23, 2015
    Assignee: LG Electronics Inc.
    Inventors: Hak Seong Kim, Byoung Hoon Kim, Dae Won Lee, Ki Jun Kim
  • Method of transmitting data
    Patent number: 9060327
    Abstract: A data transmission method is provided. The method includes: receiving from a plurality of receiving stations, which include base stations and relay stations, a state information value corresponding to the receiving stations; measuring signal strength with respect to the receiving stations; selecting any one receiving station from among the receiving stations which have a great signal strength value obtained by measuring the signal strength and which have a small state information value; and transmitting data to the selected receiving station. Accordingly, radio resources can be prevented from ineffective use caused by relay transmission.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: June 16, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Byoung Hoon Kim
  • Apparatus and method for transmitting data using multiple antennas
    Patent number: 9059761
    Abstract: A data transmission apparatus having a plurality of antennas in a frequency division multiplexing system is provided. The apparatus includes a demultiplexer for splitting first-type data into plural pieces of sub-data, a first precoder for mapping the plural pieces of sub-data to the plurality of antennas by applying a first weight, a second precoder for mapping second-type data with an attribute different from the first-type data to the plurality of antennas by applying a second weight, and a transmit processor for transmitting the first-type data together with the second-type data through the plurality of antennas. Coverage can be expanded, and different types of services can be concurrently provided and system management can be achieved with increased flexibility and reliability.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: June 16, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Byoung Hoon Kim
  • METHOD AND APPARATUS FOR RELAYING DATA IN WIRELESS COMMUNICATION SYSTEM BASED ON TDD
    Publication number: 20150156765
    Abstract: A method and a wireless station are described for receiving signals. The wireless station receives from a base station configured to use at least one of a plurality of time division duplex (TDD) uplink-downlink (UL-DL) subframe configurations, each of which indicates locations of at least one DL subframe and at least one UL subframe in a radio frame, a signal including information indicating that at least one uplink subframe indicated by the at least one of the plurality of TDD UL-DL subframe configurations is reconfigured as a DL subframe. The wireless station receives, from the base station, DL data on the UL subframe according to the signal.
    Type: Application
    Filed: February 5, 2015
    Publication date: June 4, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Byoung Hoon KIM, Yeong Hyeon KWON, Han Byul SEO, Jae Hoon CHUNG, Young Woo YUN, Dae Won LEE
  • Apparatus for transmitting a signal using scheduling information in a mobile communication system and method for same
    Patent number: 9049739
    Abstract: Disclosed are a method for transmitting scheduling information in a mobile communication system and a femtocell base station using the method. A femtocell base station transmits scheduling information using a layered scheduling system in which the femtocell base station receives an allocated resource from a macrocell base station, and allocates the resource to femtocell users within a resource region thereof.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: June 2, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Jun Ho Jo, Han Byul Seo, Ji Hyun Lee, Byoung Hoon Kim
  • Method and apparatus for reducing inter-cell interference in a wireless communication system
    Patent number: 9042925
    Abstract: The present invention relates to a method including aligning a boundary of a downlink subframe from the first base station to a first user equipment with a boundary of a downlink subframe from a second base station to a second user equipment; acquiring timing advance information indicating a time by which a boundary of an uplink subframe from the first user equipment to the first base station advances compared to the aligned boundary of the downlink subframe; and notifying the first user equipment of a time point at which an uplink subframe is transmitted from the first user equipment to the first base station based on the acquired timing advance information, wherein the boundary of the uplink subframe from the notified first user equipment to the first base station is aligned with a boundary of an uplink subframe from the second user equipment to the second base station.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: May 26, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Hak Seong Kim, Byoung Hoon Kim, Ki Jun Kim, Eun Sun Kim
  • METHOD OF RELAY NODE USING REFERENCE SIGNAL AND RELAY NODE USING THE METHOD
    Publication number: 20150139138
    Abstract: A method for transmitting a control signal, performed by a wireless device. The method according to one embodiment includes allocating resource elements (REs) for a control channel; and transmitting the control signal through the Res. Each RE in the REs for the control channel is associated with one out of two antenna ports. The two antenna ports are included in a plurality of antenna ports used for transmitting demodulation reference signals (DM RS).
    Type: Application
    Filed: December 24, 2014
    Publication date: May 21, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Han Byul SEO, Dae Won LEE, Byoung Hoon KIM, Hak Seong KIM, Yu Jin NOH
  • Solvent-Substitution Solvent Used in Aerogel Production, and Hydrophobised Aerogel Production Method Using Same
    Publication number: 20150141532
    Abstract: Provided are a solvent-substitution solvent for producing a hydrophobized aerogel and a method for producing a hydrophobized aerogel. The solvent-substitution solvent includes pentanol in an amount of 41 wt % to 100 wt % and n-butanol in an amount of 0 wt % to 59 wt %. The method includes performing a solvent substitution process using the solvent-substitution solvent. If the solvent-substitution solvent is used for solvent substitution and/or hydrophobization in an aerogel production process, water (moisture) contained in a wet gel may be effectively substituted with the solvent-substitution solvent, and the solvent-substitution solvent may easily be collected at a high degree of purity and may be reused if necessary. Therefore, the rate of solvent loss may be minimized.
    Type: Application
    Filed: May 9, 2013
    Publication date: May 21, 2015
    Inventors: Byoung-Hoon Kim, Jeong-Kun Yoo, Jung-Ho Han, Roshan Wagle
  • Handover in white space band
    Patent number: 9036604
    Abstract: Provided are a method and a device for performing a handover in a wireless LAN system operating in a white space band. A method includes: allowing a specific station (STA) to access a service region of a second access point (AP), the specific STA associated with a first AP and storing a first enablement STA identification information (“IDINFO”), the first enablement STA IDINFO being an IDINFO of an enablement STA managing STA enablement from the first AP; receiving a message, from the second AP, including a second enablement STA IDINFO (an IDINFO of an enablement STA managing STA enablement provided by the second AP); comparing the first and second enablement STA IDINFO; if the first and second enablement STA IDINFO are different, performing a procedure for changing an enablement STA and a handover to the second AP, to a second enablement STA, which corresponds to the second enablement STA IDINFO.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: May 19, 2015
    Assignee: LG Electronics Inc.
    Inventors: Eunsun Kim, Yongho Seok, Byoung Hoon Kim
  • METHOD FOR PERFORMING HARQ FOR RELAY STATION
    Publication number: 20150131522
    Abstract: A method for performing HARQ includes: receiving information to determine downlink subframes used for a relay station to receive scheduling information from a BS; determining uplink subframes for performing a HARQ with the DL subframes, each of the UL subframes corresponding to each of the DL subframes; assigning sequentially each of a plurality of HARQ processes to each of the UL subframes one by one; and performing HARQ with the BS at at least one of the HARQ processes. An n-th subframe is configured for a corresponding UL subframe if an (n?4)-th subframe is configured for one of the DL subframes, n denoting an integer. The HARQ processes are equal in number to the UL subframes. The DL subframes are configured in at least one radio frame having 10 subframes indexed from 0 to 9. Subframes having indexes 0, 4, 5 and 9 are not configured as a DL subframe.
    Type: Application
    Filed: January 22, 2015
    Publication date: May 14, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Hanbyul SEO, Byoung-Hoon KIM