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).

  • Method for transmitting coMP feedback information in wireless communication system and terminal apparatus
    Patent number: 8750152
    Abstract: Disclosed are a method for transmitting CoMP feedback information in a wireless communication system and a terminal apparatus using the same. Measured values of adjacent cells for performing a CoMP operation can be generated by using measured values defined in an existing LTE system. Consequently, the present invention doesn't need to define new measured values in a LTE-Advanced system.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: June 10, 2014
    Assignee: LG Electronics Inc.
    Inventors: Ja Ho Koo, Ki Jun Kim, Han Byul Seo, Hyung Tae Kim, Bin Chul Ihm, Jae Hoon Chung
  • METHOD AND DEVICE FOR SETTING A CONTROL CHANNEL AND A DATA CHANNEL IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20140153539
    Abstract: The present invention relates to a method for configuring a starting position of a control channel in a wireless communication system, and a terminal using the same. The method includes receiving duration information about a physical downlink control channel from the first orthogonal frequency division multiplexing (OFDM) symbol of a downlink subframe; and configuring a first OFDM symbol after OFDM symbols indicated by the duration information, as a starting point of an enhanced-physical downlink control channel. The downlink subframe includes a plurality of subcarriers in a frequency domain and 12 or 14 OFDM symbols in a time domain. The PDCCH includes the first N (N is a natural number of from 1 to 4) number of OFDM symbols of the downlink subframe. The duration information indicates the N number of OFDM symbols. The E-PDCCH comprises the starting point to the last OFDM symbol of the downlink subframe.
    Type: Application
    Filed: July 13, 2012
    Publication date: June 5, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Dong Youn Seo, Joon Kui Ahn, Suck Chel Yang, Han Byul Seo
  • METHOD AND WIRELESS DEVICE FOR MONITORING CONTROL CHANNEL
    Publication number: 20140146769
    Abstract: Provided are a method of monitoring a control channel in a multiple antenna system, in which a plurality of layers are defined, and a wireless device using same. The wireless device monitors the control channel in a search layer that is selected from the plurality of layers.
    Type: Application
    Filed: July 18, 2012
    Publication date: May 29, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Joon Kui Ahn, Suck Chel Yang, Dong Youn Seo, Han Byul Seo
  • Apparatus for performing comp communication using a precoded sounding reference signal and method of the same
    Patent number: 8737307
    Abstract: An apparatus for performing coordinated multiple point (CoMP) communication using a precoded sounding reference signal, and a method for same are discussed. The method according to an embodiment of the present invention includes: a base station receiving, from a terminal in a neighboring cell, a sounding reference signal (SRS) precoded by a first matrix; acquiring an effective neighboring channel matrix using a hermitian matrix of the first matrix from the received SRS, and a downstream link channel matrix between the terminal and base station; and determining a precoding matrix to be transmitted to one or more terminals served by the base station on the basis of the effective neighboring channel matrix. Here, the effective neighboring channel matrix indicates a direction toward which a receiving beam should be directed such that the terminal can receive data from a serving base station thereof.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: May 27, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hyung Tae Kim, Han Byul Seo, Dae Won Lee
  • Scheduling method and apparatus in a relay communication system
    Patent number: 8737287
    Abstract: Disclosed are a packet scheduling method and apparatus in a relay network. A scheduling method of a relay station in a relay communication system includes: receiving information regarding an amount of generated data to be transmitted to a user from a base station; estimating the size of a queue of the base station storing the data to be transmitted to the user based on the amount of generated data received from the base station; obtaining the size of a virtual queue in which overall data to be transmitted to a user with reference to the estimated size of the queue of the base station and the size of a queue of the relay station storing data to be transmitted to a user; performing scheduling to allocate resource based on the size of the virtual queue; and transmitting data to the user based on the scheduling results.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: May 27, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han-Byul Seo, Daeyoung Park, Byoung-Hoon Kim
  • Method and apparatus for transmitting information about a channel in a wireless communication system
    Patent number: 8737303
    Abstract: Provided are a method and apparatus for the feedback of channel information in a wireless communication system. User equipment transmits a recommended rank to a base station. The user equipment receives, from the base station, an indicating rank that has been determined in consideration of the recommended rank, and transmits a channel status determined on the basis of the indicating rank to the base station.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: May 27, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hyung Tae Kim, Han Byul Seo, Ki Jun Kim, Byoung Hoon Kim
  • Method for transmitting and receiving signal of relay in radio communication system supporting multiple carriers
    Patent number: 8737289
    Abstract: Disclosed herein is a radio communication system, and more particularly, to a method and apparatus for transmitting and receiving a signal on a backhaul link and an access link of a relay in a radio communication system supporting multiple carriers. The method for transmitting and receiving a signal in a relay node operating on multiple carriers includes receiving a control channel from a base station, determining the type of the control channel, determining an in-band operation mode or an out-band operation mode based on the determined type of the control channel, and transmitting and receiving the signal to at least one of the base station and a user equipment according to the determined operation mode. The multiple carriers include one or more in-band component carriers and one or more out-band component carriers.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: May 27, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Byul Seo, Byoung Hoon Kim, Ki Jun Kim, Hak Seong Kim
  • Method and apparatus for channel estimation for radio link between a base station and a relay station
    Patent number: 8730903
    Abstract: A method and apparatus for channel estimation for radio link between a base station and a relay station in a radio communication system are disclosed. A method for receiving a downlink signal at a relay node in a wireless communication system, the method comprising receiving downlink control information by demodulating a R-PDCCH of a first RB pair based on a downlink channel estimated by a DMRS in the first resource block (RB) pair; and receiving downlink data by demodulating a PDSCH of the one or more RB pairs contiguous to the first RB pair based on a downlink channel estimated by a DMRS in the one or more RB pairs, wherein, if the PDSCH is assigned to the first RB pair, the downlink channel is estimated on the assumption that the same precoder is applied to one RB bundle including the first RB pair and the one or more RB pairs.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: May 20, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Byul Seo, Hak Seong Kim, Ki Jun Kim, Byoung Hoon Kim, Dae Won Lee
  • Method and apparatus of transmitting data in coordinated multi-cell wireless communication system
    Patent number: 8718665
    Abstract: A method and apparatus of transmitting data in a coordinated multi-cell wireless communication system is provided. A base station receives information about beam-forming vectors, aligned with a channel to a user equipment placed in a neighbor cell, and about nulling beam-forming vectors for the channel to the user equipment from the neighbor cell, determines a transmission beam-forming vector based on the information, and transmits data to the user equipment using the transmission beam-forming vector.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: May 6, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hyung Tae Kim, Han Byul Seo, Byoung Hoon Kim
  • Method for transmitting feedback information and data using a precoding codebook for multicell cooperative communication in a wireless communication system
    Patent number: 8705510
    Abstract: Disclosed are a feedback-transmitting method and data-transmitting method, and a method for generating a codebook that can be used in a system such as LTE-A. When multiple base stations operate in a cooperative mode, using a codebook generated according to the present invention, an existing codebook for single cell transmission can be used to generate a codebook for cooperative transmission.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: April 22, 2014
    Assignees: LG Electronics Inc., Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Hyung Tae Kim, Byoung Hoon Kim, Jang Hoon Yang, Han Byul Seo, Hyuk Jin Chae, Dong Ku Kim, Ki Jun Kim, Suck Chel Yang
  • Method and apparatus of controlling uplink power for multi-cell cooperative system
    Patent number: 8706152
    Abstract: A method and apparatus of controlling uplink transmit power is provided. An estimated path-loss value for each of downlink signals from a control base station and one or more neighboring base stations is calculated. A signal path-loss value by using the calculated plurality of estimated path-loss values is obtained. An open-loop power control parameter by using the signal path-loss value is obtained. Uplink power can be controlled by considering cooperative communication of a plurality of base stations in a multi-cell cooperative radio communication system.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: April 22, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Byul Seo, Byoung Hoon Kim
  • Method and apparatus for performing communication in relay system
    Patent number: 8687484
    Abstract: The present invention relates to a method and apparatus for efficiently using a resource in a relay system. In detail, the present invention relates to a method for controlling an uplink signal transmission of user equipment in a wireless communication system, and to an apparatus for same. The method comprises the following steps: checking a cell-specific first SRS transmission subframe set; checking a relay-specific second SRS transmission subframe set; and allocating a resource for the uplink signal transmission. The uplink signal is transmitted to a relay via a backhaul subframe in the event the backhaul subframe falls within the first SRS transmission subframe set but does not fall within the second SRS transmission subframe set. The uplink signal transmission is dropped from the backhaul subframe in the event the backhaul subframe falls within the second SRS transmission subframe set.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: April 1, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hak Seong Kim, Han Byul Seo
  • Method and apparatus of transmitting backhaul signal in wireless communication system including relay station
    Patent number: 8681723
    Abstract: A method and apparatus of transmitting backhaul signals performed by a relay station in a wireless communication system is provided. A relay station performs scheduling with a base station in order to transmit the backhaul signals, and transmitting the backhaul signals to the base station using both resources for downlink transmission and resources for uplink transmission based on the scheduling.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: March 25, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Byul Seo, Byoung Hoon Kim
  • Method and apparatus for cooperative multiple point transmission and reception
    Patent number: 8681682
    Abstract: A cooperative multiple point transmission and reception (CoMP) method of a user equipment (UE) receiving signals from a plurality of base stations (BSs) comprises receiving a first signal from a serving BS, receiving a second signal from an interfering BS, and restoring data, included in the first signal, using the second signal. The second signal comprises a downlink signal, transmitted from the interfering BS to a UE connected to the interfering BS, and a dummy signal for canceling interference of the downlink signal with the first signal. In a wireless communication system composed of multiple cells, CoMP using DPC can be performed even without data sharing between the cells.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: March 25, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hyung Tae Kim, Han Byul Seo, Byoung Hoon Kim
  • METHOD AND DEVICE FOR EXECUTING HARQ IN TDD-BASED WIRELESS COMMUNICATION SYSTEM
    Publication number: 20140078941
    Abstract: Provided are a method and a device for executing a hybrid automatic repeat request (HARQ) of a terminal in a time division duplex (TDD)-based wireless communication system. The method comprises the steps of: receiving an uplink grant for a first subframe of a second serving cell through a first serving cell; transmitting uplink data in the first subframe on the basis of the uplink grant; receiving an acknowledgement/not-acknowledgement (ACK/NACK) for the uplink data through the first serving cell; and, when the ACK/NACK signal is a NACK, transmitting a retransmission data for the uplink data in a second subframe of the second serving cell.
    Type: Application
    Filed: March 21, 2012
    Publication date: March 20, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Dong Youn Seo, Min Gyu Kim, Han Byul Seo, Joon Kui Ahn, Suck Chel Yang
  • Method and apparatus in which a relay station makes a hybrid automatic repeat request in a multi-carrier system
    Patent number: 8665775
    Abstract: A method of performing a hybrid automatic repeat request (HARQ) of a relay station in a backhaul link of a multi-carrier system is provided. The method includes: receiving backhaul downlink data through at least one carrier between a first carrier and a second carrier; transmitting acknowledgement/not-acknowledgement (ACK/NACK) for the backhaul downlink data through an uplink component carrier; and receiving new backhaul downlink data or retransmitted backhaul downlink data in accordance with the transmitted ACK/NACK through at least one carrier between the first carrier and the second carrier, wherein the first carrier is a component carrier dedicated to the backhaul downlink between a base station and the relay station, and the second carrier is a component carrier used in both the backhaul downlink and an access downlink between the relay station and a relay user equipment at different times.
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: March 4, 2014
    Assignee: LG Electronics Inc.
    Inventors: Hak Seong Kim, Han Byul Seo, Ki Jun Kim
  • Method and apparatus for mode switching between a multi-cell coordinated communication mode and a single-cell MIMO communication mode
    Patent number: 8665817
    Abstract: The present invention relates to a wireless communication system, and more particularly, discloses a method and an apparatus for mode switching between a multi-cell coordinated communication mode and a single-cell MIMO communication mode. A method for dynamically switching a communication mode according to one embodiment of the present invention comprises: a step of generating and transmitting first feedback information in accordance with a first communication mode; a step of switching the first communication mode into a second communication mode interlocked with the first communication mode; and a step of generating and transmitting second feedback information in accordance with the second communication mode.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: March 4, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Byul Seo, Byoung Hoon Kim
  • Method and apparatus for relaying data in wireless communication system
    Patent number: 8665761
    Abstract: A method of relaying data in a wireless communication system is provided. The method comprises: receiving data, transmitted over a first subframe from a base station, over a second subframe; and relaying the data to a user equipment over a third subframe which is placed after one or more subframes from the second subframe, wherein at least any one of the first and the second subframes is a non-detection subframe to which the user equipment does not attempt data detection. According to the present invention, the wireless communication system enables efficient data transmission between a base station and a relay station as compared to conventional subframe-configurated systems. Furthermore, the wireless communication system enables data transmission with improved wireless resource allocation efficiency.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: March 4, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Byul Seo, Young Seob Choi, Byoung Hoon Kim
  • Method for transmitting acknowledgement/non-acknowledgement in wireless communication system employing relay station
    Patent number: 8649316
    Abstract: A method for transmitting acknowledgement (ACK)/non-acknowledgement (NACK) in a wireless communication system employing a relay station is provided. The method includes receiving data, and transmitting an ACK/NACK for the data according to a specific rule when the ACK/NACK cannot be transmitted in the synchronous ACK/NACK transmission rule. It is possible to solve a problem caused by ACK/NACK transmission between a base station and a relay station.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: February 11, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Byul Seo, Byoung Hoon Kim
  • METHOD AND APPARATUS FOR TRANSMITTING SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20140036764
    Abstract: A method of transmitting a signal of a base station in a wireless communication system is provided. The method includes transmitting a first signal to the relay station through the transmission period in a subframe including a transmission period and a guard time for transmission/reception switching of a relay station, and transmitting a second signal to a macro user equipment through the guard time. Accordingly, a signal can be effectively transmitted in the wireless communication system employing the relay station.
    Type: Application
    Filed: October 8, 2013
    Publication date: February 6, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Han Byul SEO, Byoung Hoon KIM