Patents by Inventor Kyu Jin Park

Kyu Jin Park 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).

  • Patent number: 8547921
    Abstract: The present invention relates to a frame structure and method for supporting a relay. According to an embodiment of the present invention, a method for transmitting a preamble from a network supporting a relay includes transmitting a first preamble for establishing synchronization with at least one of a mobile station and a relay station, and transmitting a second preamble including supplemental information for accurately establishing synchronization with at least one of the mobile station and the relay station.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: October 1, 2013
    Assignee: LG Electronics Inc.
    Inventors: Ae Ran Youn, Jin Sam Kwak, Kyu Jin Park, Ji Wook Chung
  • Patent number: 8514768
    Abstract: A method of transmitting a reference signal performed by a Relay Station (RS) in a wireless communication system comprises allocating a guard time in the front of a backhaul subframe or the end of the backhaul subframe, the backhaul subframe comprising a plurality of slots, each of the plurality of slots comprising a plurality of Orthogonal Frequency Division Multiplexing (OFDM) symbols, and the guard time being a time interval for switching between an access link and a backhaul link, and transmitting a Demodulation Reference Signal (DMRS) to a Base Station (BS) in an OFDM symbol of the backhaul subframe. The OFDM symbol for the DMRS is not over-lapped with the guard time.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: August 20, 2013
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Kyu Jin Park, Jae Hoon Chung, Sung Ho Moon, Seung Hee Han, Yeong Hyeon Kwon
  • Patent number: 8503563
    Abstract: A transmitter for reducing time selectivity and/or frequency selectivity in a wireless communication system includes a plurality of transmit antennas, a phase shifter which is disposed for each transmit antenna and is configured to shift a phase of data transmitted through the transmit antenna by a phase shift value, and a channel selectivity processor configured to obtain the phase shift value by using a channel phase value fed back from a receiver.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: August 6, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hyung Ho Park, Min Seok Oh, Doo Hyun Sung, Jin Soo Choi, Jae Hoon Chung, Sung Ho Moon, Kyu Jin Park, Eun Jong Lee
  • Patent number: 8493895
    Abstract: A method of transmitting subframe designating information in downlink in a wireless communication system is disclosed. The present invention includes generating the subframe designating information for designating a subframe of a specific type in a radio frame and transmitting the generated subframe designating information to a user equipment, wherein the subframe designating information includes initial location information indicating an initial location of the subframe of the specific type on the radio frame and period information indicating a period for the subframe of the specific type to be repeated.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: July 23, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Min Seok Noh, Kyu Jin Park, Jae Hoon Chung, Seung Hee Han
  • Publication number: 20130176995
    Abstract: Provided are a method and device for allocating wireless resources in a wireless communication system. The wireless resource allocating method comprises allocating a machine type communication (MTC)-dedicated wireless resource and a general wireless resource, and communicating with at least one MTC device through the MTC-dedicated wireless resource. Herein, the MTC-dedicated wireless resource supports only the communication with the at least one MTC device, and the MTC-dedicated wireless resource and the general wireless resource may be different from each other.
    Type: Application
    Filed: July 5, 2011
    Publication date: July 11, 2013
    Applicant: LG Electronics Inc.
    Inventors: Kyu Jin Park, Han Gyu Cho, Dong Guk Lim
  • Patent number: 8483118
    Abstract: A method of transmitting a signal using a relay station is disclosed. In a wireless communication system, the present invention includes the steps of enabling the relay station to receive the signal via a relay interval in a downlink interval using a first wireless communication scheme and a second wireless communication scheme in common from a base station and enabling the relay station to transmit the received signal to a first terminal using the first wireless communications scheme via a first downlink interval in the downlink interval or to a second terminal using the second wireless communication scheme via a second downlink interval.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: July 9, 2013
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Ji Wook Chung, Doo Hyun Sung, Han Gyu Cho, Jin Sam Kwak, Eun Jong Lee, Ae Ran Youn, Jae Hoon Chung
  • Patent number: 8477633
    Abstract: A method of allocating a radio resource for a relay station in a wireless communication system is disclosed. The method comprise allocating a relay zone to the relay station in a subframe and transmitting a relay control channel to the relay station by using the relay zone, wherein the subframe comprises a plurality of orthogonal frequency division multiplexing (OFDM) symbols in a time domain and a plurality of subcarriers in a frequency domain, wherein the subframe is divided into a user zone used by a user equipment in a cell and the relay zone used by the relay station, and wherein the relay zone comprises some of the plurality of subcarriers. According to the present invention, a subframe structure provides backward compatibility with a legacy wireless communication system. A relay station can effectively find a radio resource allocated to the relay station, thereby decreasing a decoding time.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: July 2, 2013
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Sung Ho Moon, So Yeon Kim, Jae Hoon Chung, Min Seok Noh, Yeong Hyeon Kwon, Hyun Soo Ko, Seung Hee Han, Moon Il Lee
  • Patent number: 8462726
    Abstract: A method for performing a ranging procedure includes transmitting a ranging request message through a randomly selected ranging slot to a base station, the ranging request message comprising a randomly selected ranging code, and receiving a ranging response message including collision information which informs that collision occurs when at least two user equipments transmit the same ranging code to the base station through the same ranging slot. Delay in the ranging can be reduced.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: June 11, 2013
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Minseok Oh, Hyung Ho Park, Doo Hyun Seong, Eun Jong Lee, Jin Soo Choi, Jae Hoon Chung, Seong Ho Moon
  • Patent number: 8462878
    Abstract: A method for transmitting signals for achieving diversity gain is provided. In a communication system having multiple independent transmission paths, a signal is transmitted by mapping it to different independent transmission paths at initial transmission and at retransmission, thereby obtaining diversity gain. Especially, real and ideal components of a transmission signal are mapped to different transmission paths, thereby obtaining additional gain.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: June 11, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Min Seok Oh, Hyung Ho Park, Sung Ho Moon, Kyu Jin Park, Jae Hoon Chung, Doo Hyun Sung
  • Patent number: 8417213
    Abstract: Various methods for supporting emergency communication in a wireless access system that supports a relay system are disclosed. A method for supporting emergency communication in a wireless access system comprises the steps of configuring a path for emergency communication with a first mobile station of an emergency mode and one or more second mobile stations located near the first mobile station; allocating a first resource zone for emergency communication to the first mobile station; transmitting allocation information on the first resource zone to one or more of the first mobile station and the second mobile station; and receiving emergency data through the first resource zone.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: April 9, 2013
    Assignee: LG Electronics Inc.
    Inventors: Ae Ran Youn, Kyu Jin Park, Jin Sam Kwak
  • Publication number: 20130077594
    Abstract: The present invention relates to a communication method for machine type communication (MTC) in a wireless communication system. An MTC device transmits subscription information for indicating MTC subscribers to a base station, and receives a group identifier for indicating an MTC group to which the MTC device belongs, from the base station. The MTC device receives, from the base station, resource allocation information on a control channel based on the group identifier.
    Type: Application
    Filed: June 9, 2011
    Publication date: March 28, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyu Jin Park, Seung Hyun Kang, Han Gyu Cho
  • Publication number: 20130064172
    Abstract: Disclosed are an apparatus and a method for transmitting/receiving control information in a wireless communication system. In a repeater according to the present invention, a receiving antenna can receive control information for a hybrid automatic repeat reQuest ACKnowledgement (HARQ ACK) feedback on the data transmission of a base station from the base station through higher layer signaling. On the basis of the control information, a processor can determine a resource in an upper link control channel to be used for the transmission of the HARQ feedback. A transmitting antenna can transmit the HARQ feedback to the base station through the resource that has been determined.
    Type: Application
    Filed: March 14, 2011
    Publication date: March 14, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyu Jin Park, Jae Hoon Chung, Sung Ho Moon
  • Patent number: 8396070
    Abstract: A method for transmitting a voice over Internet protocol (VoIP) packet includes allocating a radio resource for VoIP packet transmission to a user, transitioning a VoIP service from a talk period, in which the VoIP packet is transmitted using the radio resource, to a silence period in which the VoIP packet is not transmitted, releasing the radio resource during the silence period, and transitioning the VoIP service to the talk period by reallocating the radio resource. Limited radio resources can be further effectively used.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: March 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Doo Hyun Sung, Hyung Ho Park, Jae Hoon Chung, Kyu Jin Park, Eun Jong Lee, Han Gyu Cho, Jin Soo Choi, Jong Young Han
  • Patent number: 8391311
    Abstract: A method for transmitting a voice over Internet protocol (VoIP) packet includes allocating a radio resource for VoIP packet transmission to a user, transitioning a VoIP service from a talk period, in which the VoIP packet is transmitted using the radio resource, to a silence period in which the VoIP packet is not transmitted, releasing the radio resource during the silence period, and transitioning the VoIP service to the talk period by reallocating the radio resource. Limited radio resources can be further effectively used.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: March 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Doo Hyun Sung, Hyung Ho Park, Jae Hoon Chung, Kyu Jin Park, Eun Jong Lee, Han Gyu Cho, Jin Soo Choi, Jong Young Han
  • Patent number: 8373646
    Abstract: In a backlight device and a driving method thereof, a voltage controller controls a voltage level of a first input voltage in response to a dimming signal to output a second input voltage. A pulse generator receives the second input voltage from the voltage controller and generates a pulse signal having a duty ratio corresponding to the dimming signal and a high voltage level corresponding to the second input voltage. An inverter generates a lamp driving signal based on the pulse signal. At least one lamp included in the backlight device is turned on or turned off in response to a lamp driving signal to adjust luminance of the backlight device.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: February 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyu-Jin Park, Hyoung-Hak Kim, Sang-Hoon Park
  • Patent number: 8369283
    Abstract: The present invention relates to a handover procedure, and more particularly, to a method of reducing latency in performing handover using fast ranging. The present invention includes the steps of receiving a handover message including a specific ranging code and uplink resource information from a serving base station and transmitting the specific ranging code to a target base station using the uplink information.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: February 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Jae Hoon Chung, Han Gyu Cho, Eun Jong Lee, Doo Hyun Sung
  • Publication number: 20130010684
    Abstract: Disclosed are an apparatus and method for transmitting/receiving control information in a wireless communication system that supports carrier aggregation. According to the present invention, a processor of a base station device that transmits control information configures a component carrier type for each of a plurality of downlink component carriers (DL CCs) in accordance with whether or not each of the plurality of DL CCs can support a relay PDCCH (R-PDCCH), which is a downlink control channel dedicated to a relay node. A transmitting antenna transmits information on the type of each of the configured DL Cs to the relay node.
    Type: Application
    Filed: March 21, 2011
    Publication date: January 10, 2013
    Applicant: LG Electronics Inc.
    Inventors: Kyu Jin Park, Han Gyu Cho, Jae Hoon Chung
  • Publication number: 20120269113
    Abstract: Disclosed are an apparatus for transmitting and receiving an uplink backhaul signal in a wireless communication system and a method thereof. The method for receiving the uplink backhaul signal from a relay station in a base station, comprises the step of receiving a signal transmitted through an uplink backhaul sub-frame of an index N in the relay station using an uplink sub-frame of an index N or an index N+1 in the base station. The base station receives the signal transmitted from the relay station in the uplink sub-frame of the index N or the index N+1 of the base station at the delayed timing corresponding to a propagation delay value of the signal according to the distance between the relay station and the base station from a transmitting time point.
    Type: Application
    Filed: October 11, 2010
    Publication date: October 25, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyu Jin Park, Sung Ho Moon, Jae Hoon Chung
  • Publication number: 20120269151
    Abstract: In the transmission of user data for a user equipment and control information on the user data to the user equipment using a plurality of carrier waves by a base station in a wireless communication system, the control information can be transmitted over a portion of the plurality of carrier waves, and carrier waves over which only the user data is transmitted can be generated without the control information. Here, the base station transmits, at a certain number of subframes following the subframes at which the control information is transmitted, the user data over the carrier waves to which only the user data is allocated. Thus, the user equipment can minimize the buffering of the user data during the detection of the control information, and decode the user data.
    Type: Application
    Filed: November 15, 2010
    Publication date: October 25, 2012
    Inventors: Moon Lee, II, Seung Hee Han, Jae Hoon Chung, Kyu Jin Park
  • Publication number: 20120236783
    Abstract: Disclosed are a base station apparatus and a repeater apparatus for transceiving signals in a wireless communication system. The repeater apparatus comprises: a receiver which receives a signal from a base station through a first region of a first downlink subframe in a component carrier that supports first and second wireless communication schemes; and a transmitter which transmits, through a second region of the first downlink subframe, a signal to one or more terminals of one or more first type of terminals which use the first wireless communication scheme and one or more second type of terminals which use the second wireless communication scheme, simultaneously with said reception of the signal. Here, the first region and the second region are multiplexed in the first downlink subframe in accordance with a frequency division multiplexing (FDM) scheme.
    Type: Application
    Filed: December 10, 2010
    Publication date: September 20, 2012
    Inventors: Kyu Jin Park, Sung Ho Moon, Yeong Hyeon Kwon, Jae Hoon Chung, Han Gyu Cho