Patents by Inventor Han-Byul Seo

Han-Byul Seo 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).

  • BACKHAUL DOWNLINK SIGNAL DECODING METHOD OF RELAY STATION AND RELAY STATION USING SAME
    Publication number: 20150280809
    Abstract: A method of decoding a backhaul downlink signal of a relay node (RN). A higher layer signal indicating a maximum transmission rank is received from a base station (BS). Control information is received through a relay control channel from the BS. The control information is demodulated and mapped to resource elements (REs) which do not overlap with user equipment-specific reference signal (URS) REs in a control region which is used for the relay control channel transmission of the BS. The URS REs are reserved REs for URSs according to the maximum transmission rank. The control information is demodulated based on URSs transmitted by the BS on one fixed antenna port n, where n is a natural number.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 1, 2015
    Applicant: LG Electronics Inc.
    Inventors: Han Byul SEO, Dae Won LEE, Byoung Hoon KIM, Hak Seong KIM, Ki Jun KIM
  • Method and device for transmitting a sounding reference signal
    Patent number: 9143299
    Abstract: The present invention provides a method and device for transmitting a sounding reference signal on a wireless communication system. More specifically, the present invention relates to an SRS transmission method comprising the steps of: receiving cell-specific parameters for constituting a SRS; receiving first terminal-specific parameters designating a resource which can be used in the non-periodic transmission of the SRS; receiving request information whereby SRS transmission is requested; and, after the request information has been received, transmitting the SRS by using the resource allocated by means of the first terminal-specific parameters; wherein the SRS is transmitted inside subframes designated by means of the cell-specific parameters, and the present invention also relates to a device for the same.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: September 22, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Byoung Hoon Kim, Ki Jun Kim, Hak Seong Kim
  • Method for transmitting a signal related to a change in transmission format
    Patent number: 9137845
    Abstract: Provided is a method of transmitting a signal related to a change in a transmission format. In a wireless communication system which uses an orthogonal frequency division multiplexing (OFDM) symbol or a single carrier-frequency division multiple access (SC-FDMA) symbol, the method includes: transmitting, from a base station to a receiver, a radio resource control (RRC) message indicating that a first transmission format is changed to a second transmission format; and if an acknowledgement (ACK) message for the RRC message is not received, repetitively transmitting the RRC message, from the base station to the receiver, together with data based on the first transmission format or data based on the second transmission format, wherein the data based on the first transmission format and the data based on the second transmission format transmitted together with the RRC message are alternately selected.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: September 15, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Hak Seong Kim, Han Byul Seo, Byoung Hoon Kim, Ki Jun Kim
  • Method for transmitting scheduling information in mobile communication system and femtocell base station apparatus using the same
    Patent number: 9137820
    Abstract: A method for transmitting scheduling information in a mobile communication system and a femtocell base station apparatus using the same are provided. Scheduling information can be transmitted using a hierarchical scheduling scheme in which a femtocell base station is allocated resources from a macrocell base station and the femtocell base station then allocates resources to femto users within its own resource region.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: September 15, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Byoung Hoon Kim, Young Seob Choi, Seo Woo Jang, Han Byul Seo, Hyung Tae Kim, Jun Ho Jo
  • Method for selecting an adaptive CoMP scheme
    Patent number: 9137726
    Abstract: Disclosed is a method for selecting an adaptive CoMP scheme for a user equipment. The user equipment selects a first CoMP set which can maximize a signal to interference-plus-noise ratio (SINR) from among CoMP sets while performing a first coordinate multi-point (CoMP) scheme. Then, the user equipment compares the current data transmission rate thereof and the required minimum data transmission rate thereof and the required minimum data transmission rate while performing the first CoMP scheme and selecting the first CoMP set. Subsequently, the user equipment which performs the first CoMP scheme selects a second CoMP scheme on the basis of the result of the comparison in accordance with a predetermined sequence of CoMP schemes.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: September 15, 2015
    Assignee: LG ELECTRONICS, INC.
    Inventors: Soon Yil Kwon, Han Byul Seo, Byeong Geol Cheon, Byoung Hoon Kim, Ki Jun Kim, Hak Seong Kim
  • Method for transmitting an uplink signal in a wireless communication system, and apparatus for same
    Patent number: 9130717
    Abstract: A method of receiving a sounding reference signal (SRS). The method includes transmitting, to a user equipment, a radio resource control (RRC) message transmitting, to the user equipment, a medium access control (MAC) message, the MAC message including a bitmap for indicating at least one second CC to be activated and the at least one second CC being activated based on the bitmap; transmitting, to the user equipment, a physical downlink control channel (PDCCH) including a carrier indicator field (CIF) and an SRS field via the first CC, the CIF indicating a CC of the at least one second CC and the SRS field indicating whether the user equipment has to transmit the SRS via the CC indicated by the CIF; and receiving, from the user equipment, the SRS on an uplink subframe via the CC indicated by the CIF, when the SRS field is enabled.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: September 8, 2015
    Assignee: LG Electronics Inc.
    Inventors: Min Gyu Kim, Dong Youn Seo, Han Byul Seo, Joon Kui Ahn, Suck Chel Yang
  • Method and apparatus for transmitting a reference signal in a relay communication system
    Patent number: 9118386
    Abstract: The present invention relates to a method and to an apparatus for transmitting reference signals in a relay communication system. The method for transmitting reference signals through a type 2 relay node in a relay communication system comprises: a step in which a base station allocates a plurality of antenna ports in a mutually exclusive manner so that the antenna port of the base station and the antenna port of the peripheral relay node do not overlap each other; a step in which the base station and the relay node transmit reference signals to user equipment through the respective antenna ports mutually exclusively allocated; and a step in which the base station receives a channel state information from the user equipment to obtain channel state information between the base station and the user equipment and channel state information between the relay node and the user equipment.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: August 25, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Han-Byul Seo, Byoung-Hoon Kim
  • Signal transmission method and apparatus in a relay communication system
    Patent number: 9112644
    Abstract: The present invention relates to a data transmission/receiving method and apparatus in a relay communication system. In particular, the data transmission/receiving method through a backhaul link between a base station and a relay node in a relay communication system comprises: composing a backhaul subframe including a control signal transmission period to which a control signal is allocated and a backhaul signal transmission period to which a backhaul signal is allocated and then allocating the backhaul signal; transmitting configuration information about the backhaul subframe, the information containing symbol position or size data of the backhaul signal transmission period, to the relay node through an upper layer signal; and transmitting the backhaul signal having been allocated through the backhaul subframe to the relay node.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: August 18, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Han-Byul Seo, Hak-Seong Kim, Ki-Jun Kim, Soon-Yil Kwon
  • Method and apparatus for allocating resources in a wireless communication system
    Patent number: 9107189
    Abstract: A method of transmitting signals by a base station in a wireless communication system. The method includes transmitting, to a relay node, resource allocation information indicating a Virtual Resource Block (VRB) set through Radio Resource Control (RRC) signaling; and transmitting a downlink subframe including at least one control channel element (CCE) related to the relay node. The at least one CCE is allocated from a specific Orthogonal Frequency Division Multiplexing (OFDM) symbol other than a first OFDM symbol of the downlink subframe. The VRB set is configured for a Relay Physical Downlink Control Channel (R-PDCCH).
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: August 11, 2015
    Assignee: LG Electronics Inc.
    Inventors: Hak Seong Kim, Han Byul Seo, Ki Jun Kim, Dong Youn Seo
  • 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
  • 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
  • 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
  • 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
  • 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 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
  • 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