Patents by Inventor Yeong Hyeon Kwon

Yeong Hyeon Kwon 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).

  • Publication number: 20120014329
    Abstract: A method for transmitting ACK/NACK signal in a wireless communication system applied carrier aggregation is disclosed herein. More specifically, the method includes receiving multiple transmission blocks respectively through multiple downlink component carriers from a base station, determining ACK/NACK responses corresponding to each of the multiple transmission blocks by decoding the multiple transmission blocks, mapping the ACK/NACK responses to a ACK/NACK state information, and transmitting the ACK/NACK state information through a single uplink component carrier, wherein ACK information included in the ACK/NACK state information indicates a number of ACK response among the ACK/NACK responses.
    Type: Application
    Filed: March 12, 2010
    Publication date: January 19, 2012
    Inventors: Yeong Hyeon Kwon, Jae Hoon Chung, Seung Hee Han, So Yeon Kim
  • Publication number: 20120014349
    Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and to an apparatus for transmitting an SRS in a multi-antenna system. The method comprises the steps of: acquiring specific information for discriminating a first antenna group and a second antenna group from among a plurality of antennas, wherein said first antenna group includes one or more antennas which are set to a turned-on state to perform communication with a base station, and said second antenna group includes one or more other antennas which are set to a turned-off state; transmitting an SRS to the base station if a predetermined condition is satisfied, under the condition that the second antenna group is set to the turned-off state; and setting the second antenna group to a turned-off state after the transmission of the SRS.
    Type: Application
    Filed: March 22, 2010
    Publication date: January 19, 2012
    Inventors: Jae Hoon Chung, Yeong Hyeon Kwon, Seung Hee Han, Min Seok Noh
  • Patent number: 8098647
    Abstract: A method of performing cell search includes receiving a primary synchronization signal (PSS) comprising a primary synchronization code (PSC), and receiving a secondary synchronization signal (SSS) comprising a first secondary synchronization code (SSC) and a second SSC. The first SSC and the second SSC are respectively scrambled by using a first scrambling code and a second scrambling code, and the first scrambling code and the second scrambling code are associated with the PSC. Detection performance on synchronization signals can be improved, and cell search can be performed more reliably.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: January 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim, Jin Sam Kwak
  • Publication number: 20120008577
    Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and to an apparatus for enabling a terminal to transmit a signal in a wireless communication system. The present invention provides a signal transmission method, comprising the steps of: receiving configuration information for multi-antenna transmission from a base station; configuring a multi-antenna transmission mode in accordance with the received configuration information; and transmitting an uplink channel having a plurality of symbols to the base station through multiple antennas. The present invention also provides an apparatus for carrying out said signal transmission method.
    Type: Application
    Filed: February 10, 2010
    Publication date: January 12, 2012
    Inventors: Seung Hee Han, Jae Hoon Chung, Hyun Soo Ko, Moon Il Lee, Yeong Hyeon Kwon
  • Publication number: 20120009963
    Abstract: The present invention relates to wideband wireless access system, and more particularly to an effective method for transmitting control information during the combination of multiple carriers. As one embodiment of the present invention, there is provided a method by which a base station allocates a carrier to a terminal in a wideband wireless access system supporting multiple carriers, the method comprising: transmitting, to the terminal, a terminal specific or terminal group specific carrier allocation information that includes information about at least one of control information and data; and transmitting, to the terminal, a carrier combination control information that includes information about a change in the at least one candidate carrier available.
    Type: Application
    Filed: January 4, 2010
    Publication date: January 12, 2012
    Inventors: So Yeon Kim, Jae Hoon Chung, Yeong Hyeon Kwon, Seuag Hee Han
  • Publication number: 20120008588
    Abstract: The present invention relates to a method in which a user equipment transmits a plurality of sounding reference signals to a base station in a wireless communication system. More particularly, the method comprises the steps of: generating a plurality of sounding reference signals on the basis of repetition factors (RPFs) corresponding to the number of transmitting antennas; multiplexing the plurality of sounding reference signals to a frequency domain in the same OFDM symbol or SC-FDMA symbol on the basis of a transmitting antenna index; and transmitting the multiplexed sounding reference signals to the base station using a plurality of transmitting antennas.
    Type: Application
    Filed: March 22, 2010
    Publication date: January 12, 2012
    Inventors: Jae Hoon Chung, Yeong Hyeon Kwon, Min Seok Noh, Moon II Lee
  • Publication number: 20120008585
    Abstract: A method for transmitting ACK/NACK (Acknowledgement/Negative ACK) signals in a wireless communication system is disclosed. The method comprises receiving a plurality of data blocks from a base station; generating ACK/NACK signals corresponding to the plurality of data blocks; allocating resources for transmitting ACK/NACK signals, wherein the resources are allocated independently per slot; and transmitting the ACK/NACK signals through one uplink component carrier by using the allocated resources. Preferably, the step of allocating resources includes allocating the resources to minimize the difference in the number of the ACK/NACK signals transmitted per slot.
    Type: Application
    Filed: March 24, 2010
    Publication date: January 12, 2012
    Inventors: Yeong Hyeon Kwon, Jae Hoon Chung, Seung Hee Han, So Yeon Kim
  • Publication number: 20120008586
    Abstract: The present invention discloses a method for receiving downlink control information by a terminal in a wireless communication system. More specifically, the method comprises the steps of receiving a coordination field from a base station and receiving control information on more than one component carrier that is allocated to the terminal, on the basis of the coordination field, wherein the coordination field includes more than one parameter for decoding the control information on the more than one component carrier.
    Type: Application
    Filed: April 8, 2010
    Publication date: January 12, 2012
    Inventors: Yeong Hyeon Kwon, Jae Hoon Chung, Seung Hee Han, So Yeon Kim
  • Publication number: 20120002643
    Abstract: The present invention relates to a wireless communication system which supports carrier aggregation. More particularly, the present invention relates to a method and to an apparatus for enabling a user equipment to perform a handover in a wireless communication system which supports carrier aggregation. The method for performing a handover comprises the steps of: transmitting a measurement report on a target cell to a serving cell; receiving, from the serving cell, a message containing a signature route sequence index, cyclic shift parameters, and information related to the component carrier of the target cell; confirming contention-based signatures generated on the basis of the signature route sequence index and cyclic shift parameters; and transmitting one of said contention-based signatures to the target cell for random access, via one or more component carriers, on the basis of said information related to the component carrier. The present invention also relates to an apparatus for the method.
    Type: Application
    Filed: March 15, 2010
    Publication date: January 5, 2012
    Applicant: LG Electronics Inc
    Inventors: Jae Hoon Chung, Yeong Hyeon Kwon, Seung Hee Han, So yeon Kim
  • Publication number: 20120002635
    Abstract: The present invention relates to a method and to an apparatus for supporting carrier aggregation. More particularly, the present invention relates to a method for enabling user equipment to receive a signal from a base station in a wireless communication system which supports carrier aggregation, wherein said the method comprises the steps of: setting a first component carrier to a paused state; receiving state change information for the first component carrier via the second component carrier during the paused state of the first component carrier; and monitoring a control channel via the first component carrier if the state change information indicates a predetermined value. The present invention also relates to an apparatus for the method.
    Type: Application
    Filed: March 16, 2010
    Publication date: January 5, 2012
    Inventors: Jae Hoon Chung, Yeong Hyeon Kwon, Seung Hee Han, So Yeon Kim
  • Publication number: 20120002575
    Abstract: The present invention relates to transmission and reception of a frame for a legacy support mode of IEEE 802.16m system for supporting a legacy system. A method of transmitting an uplink signal, in which a signal is transmitted by a user equipment in a wireless mobile communication system, according to the present invention includes the step of transmitting the signal from the user equipment, wherein the signal is transmitted via an uplink frame including 15 OFDMA (orthogonal frequency division multiple access) symbols and wherein the uplink frame comprises a first uplink subframe including 9 OFDMA symbols and a second uplink subframe including 6 OFDMA symbols. Preferably, the user equipment is multiplexed with a second user equipment supporting a legacy system for the wireless mobile communication system only by FDM for an uplink.
    Type: Application
    Filed: January 6, 2010
    Publication date: January 5, 2012
    Inventors: Min Seok Noh, Jim Sam Kwak, Sung Ho Moon, Yeong Hyeon Kwon, Dong Cheol Kim
  • Publication number: 20120002740
    Abstract: A method and an apparatus for transmitting a reference signal in a wireless communication system are provided. A first base station maps a first reference signal to a resource region and transmits the first reference signal to a user equipment. A second base station maps a second reference signal to said resource region and transmits the second reference signal to said user equipment. The resource elements, to which the first reference signal and the second reference signal are mapped in the resource region, are determined in accordance with the index on a Latin square matrix occupied by two different elements, respectively, from among N elements constituting the Latin square matrix with a size of N×N.
    Type: Application
    Filed: March 22, 2010
    Publication date: January 5, 2012
    Inventors: Seung Hee Han, Jae Hoon Chung, Yeong Hyeon Kwon
  • Publication number: 20110317652
    Abstract: A method and an apparatus for reporting a channel state in a multi-carrier system are provided. User equipment receives an uplink grant including an uplink resource allocation and a channel quality indicator (CQI) request via one downlink carrier from among a plurality of downlink carriers. The user equipment reports CQIs for the plurality of downlink carriers via a plurality of subframes in accordance with the CQI request.
    Type: Application
    Filed: March 3, 2010
    Publication date: December 29, 2011
    Inventors: So Yeon Kim, Jae Hoon Chung, Yeong Hyeon Kwon, Hyun Soo Ko
  • Publication number: 20110317653
    Abstract: A method for allocating resource to ACK (Acknowledgment)/NACK (Negative-ACK) transmission in a wireless communication system is disclosed. The method includes receiving scheduling information included in a plurality of downlink control channels and data included in a plurality of downlink data channels, over multiple downlink component carriers from a base station, determining ACK/NACK responses corresponding to the data, and allocating resource to the ACK/NACK responses based on the scheduling information corresponding to each of the plurality of downlink control channels and downlink component carrier-dependent offset values.
    Type: Application
    Filed: March 9, 2010
    Publication date: December 29, 2011
    Inventors: Yeong Hyeon Kwon, Jae Hoon Chung, Seung Hee Han, So Yeon Kim
  • Publication number: 20110317614
    Abstract: The invention relates to a method for transmitting an uplink signal and feedback information of a relay, and to a relay apparatus using the method. The relay can receive information, constituting a downlink backhaul subframe and an uplink backhaul subframe from a base station. The relay can transmit an uplink signal via the relevant uplink backhaul subframe on the basis of the received information constituting the uplink backhaul frame. Further, the relay can receive a downlink reference signal from the base station, measure the status of a channel, and transmit the status of the channel in values, in various formats and in various points in time and cycles, to the base station.
    Type: Application
    Filed: February 11, 2010
    Publication date: December 29, 2011
    Inventors: Kyu Jin Park, Han Gyu Cho, Yeong Hyeon Kwon, Jae Hoon Chung
  • Publication number: 20110317637
    Abstract: A method for processing and transmitting data packet is disclosed. The method includes receiving a data packet with a first Redundancy Version (RV) from a serving cell, receiving a data packet with a second RV different from the first RV from a collaborative cell, and combining and decoding the data packets received from the serving cell and the collaborative cell.
    Type: Application
    Filed: August 28, 2009
    Publication date: December 29, 2011
    Inventors: Ki Hwan Kim, Jae Hoon Chung, Yeong Hyeon Kwon
  • Publication number: 20110317610
    Abstract: A method for receiving data by a relay station (RS) in a wireless communication system includes: receiving radio resource allocation information via an R-PDCCH (R-Physical Downlink Control Channel); and receiving data from a base station (BS) via an R-PDSCH (R-Physical Downlink Shared Channel) indicated by the radio resource allocation information, wherein the radio resource allocation information includes information regarding an allocation of resource blocks in a frequency domain and information regarding an allocation of OFDM symbols in a time domain. Since the radio resource allocation information providing information regarding a time relationship between a control channel transmitted by the BS to a UE and a control channel transmitted by the RS to a UE connected to the RS is provided, the RS can reliably receive a signal transmitted from the BS in a backhaul link between the BS and the RS in a wireless communication system including the RS.
    Type: Application
    Filed: February 24, 2010
    Publication date: December 29, 2011
    Inventors: Kyu Jin Park, Jae Hoon Chung, Han Gyu Cho, Yeong Hyeon Kwon, Sung Ho Moon
  • Publication number: 20110317641
    Abstract: A method and apparatus of transmitting a reference signal in a wireless communication system is provided. A transmitter generates the reference signal, maps the reference signal to a resource region, and transmits the reference signal, mapped to the resource region, to a user equipment (UE). The resource region to which the reference signal is mapped is determined based on at least one of a hybrid automatic repeat request (HARQ) processing time for backhaul link transmission, a position of a backhaul link sub-frame, and a transmission period of the reference signal.
    Type: Application
    Filed: March 16, 2010
    Publication date: December 29, 2011
    Inventors: Min Seok Noh, Jae Hoon Chung, Yeong Hyeon Kwon
  • Publication number: 20110312326
    Abstract: The method for switching operating carrier at a user equipment is disclosed. In aspect of the present invention, the user equipment receive target carrier information indicating a target carrier of the UE and target carrier transition time information indicating a time difference between receiving timing of transition indication and transition completion timing from an base station. And the UE may switch from a current operating carrier to the indicated target carrier based on the received the target carrier transition time information and the target carrier information. In case that the target carrier information and the target carrier transition time information is transmitted via a high layer signaling, the UE may transmit ACK/NACK confirm signal indicating whether the target carrier transition time information and the target carrier information is received without error via on the target carrier and the current operating carrier to the base station.
    Type: Application
    Filed: March 12, 2010
    Publication date: December 22, 2011
    Applicant: LG ELECTRONICS INC.
    Inventors: Yeong Hyeon Kwon, Jae Hoon Chung, Seung Hee Han, So Yeon Kim
  • Publication number: 20110305185
    Abstract: A method of transmitting data in a wireless communication is disclosed, by which timing error can be solved in a multi-cell environment. The present invention, in which data is transmitted by a serving cell to a mobile station communicating with a plurality of cells in a wireless communication system, includes receiving information on delay times of signals from the mobile station, wherein the signals are received by the mobile station from the plurality of the cells and transmitting data to the mobile station by inserting a cyclic prefix (CP) having a length determined according to the information on the delay times into the data.
    Type: Application
    Filed: January 7, 2010
    Publication date: December 15, 2011
    Inventors: Yeong Hyeon Kwon, Jae Hoon Chung, Ja Ho Koo, Hyun Soo Ko