Patents by Inventor Han Gyu Cho

Han Gyu Cho 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 uplink control signal in relay station
    Patent number: 8391127
    Abstract: A method of transmitting an uplink (UL) control signal of a relay station is provided. The method includes: configuring a UL relay zone for transmitting a signal by the relay station to a base station in a frame; configuring a resource unit including a plurality of symbols and a plurality of subcarriers to allocate the UL control signal in a subframe of the UL relay zone; and transmitting the UL control signal by using the resource unit, wherein, if a transition gap required for switching of signal transmission and reception of the relay station is included in the subframe, the UL control signal is transmitted in the remaining symbols other than the plurality of symbols constituting the resource unit including the transition gap.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: March 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Young Chun, Han Gyu Cho, Dong Guk Lim, Bin Chul Ihm, Jin Sam Kwak
  • Method for mapping subband/miniband in wireless communication system and an apparatus therefor
    Patent number: 8379565
    Abstract: A method for mapping subband/miniband in a wireless communication system and apparatus therefore are disclosed. The present invention includes dividing the system frequency band into a plurality of physical resource units (PRUs) and mapping a plurality of the physical resource units to a subband physical resource unit (PRUSB) and a miniband physical resource unit (PRUMB), wherein the mapping is based on an interval between contiguous resource units which includes a predetermined number of contiguous PRUs and another interval greater than the former interval and wherein the interval between the contiguous resource units is a roundup value of a value resulting from dividing a maximum number of the contiguous resource units by the number of the contiguous resource units to allocate to the minibands.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: February 19, 2013
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Seung Hyun Kang, Jin Sam Kwak
  • Direct Communication Between Devices
    Publication number: 20130039324
    Abstract: The present invention relates to a wireless communication system, More specifically, the present invention relates to a method and an apparatus for direct communication between terminals. The method for performing communication between terminals using a first terminal in a wireless communication system comprises the steps of: transmitting request information for communication between terminals to a base station; receiving, from the base station, control information necessary for setting a link for communication between the terminals after transmitting the request information; setting a direct link between the terminals for data flow between the first and second terminals using the control information; and the first and second terminals performing communication for data transmission using the direct link between the terminals when the control information is not transmitted from the base station.
    Type: Application
    Filed: April 25, 2011
    Publication date: February 14, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Yeong Hyeon Kwon, Ji Woong Jang, Hyun Woo Lee, Han Gyu Cho
  • Permutation device and method having improved resource granularity for wireless communications
    Patent number: 8374614
    Abstract: A device and method for permuting subcarriers in a subframe which is divided into a plurality of frequency partitions in a wireless mobile communication system is disclosed. The method includes mapping, at a mobile station, physical resource units for localized resource allocation to a frequency partition of the plurality of frequency partitions in units of N_1 number of resource units, and physical resource units for distributed resource allocation to the frequency partition in units of N_d number of resource units, N_1 being different from N_d; and spreading, at the mobile station, subcarriers of the physical resource units for distributed resource allocation across the whole distributed resource allocations.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: February 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Bin Chul Ihm
  • Method for reducing handover latency
    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
  • METHOD AND APPARATUS FOR DIRECT COMMUNICATIONS IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20130029675
    Abstract: The present invention relates to a method and apparatus for direction communications in a wireless communication system. In the direct communication support method of a wireless communication system, according to one embodiment of the present invention, when a base station receives a direct communication request message from a first terminal to request a direct communication with a second terminal without going through the base station, the base station then allocates resources to be used for the direct communication and transmits resource allocation information to the first and second terminals.
    Type: Application
    Filed: June 15, 2010
    Publication date: January 31, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Yeong Hyeon Kwon, Han Gyu Cho, Ji Woong Jang, Hyun Woo Lee
  • COMMUNICATION METHOD BETWEEN TERMINALS, AND TERMINAL
    Publication number: 20130029713
    Abstract: According to the present invention, a source MS, determining initiation of M2M communication or receiving a request for initiating M2M communication from a BS, receives a reference signal for channel quality measurement of a neighboring MS, and the channel quality of the source MS and the neighboring MS is measured by using the reference signal; and information representing the channel quality is transmitted to the BS. Or, the neighboring MS receives a reference signal for channel quality measurement transmitted by the source MS, a channel quality of the source MS and the neighboring MS is measured by using the reference signal, and information representing the channel quality is transmitted to the BS. The BS determines a partner MS for M2M communication with the MS on the basis of a channel quality between the source MS and the neighboring MS.
    Type: Application
    Filed: February 18, 2011
    Publication date: January 31, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Ji Woong Jang, Han Gyu Cho, Yeong Hyeon Kwon, Hyun Woo Lee
  • Mobile station apparatus and method for transmitting signals in wireless communication system
    Patent number: 8358619
    Abstract: A method for transmitting signal, at a mobile station, in a wireless communication system is provided. Inter-cell interference information may be different for each frequency partition according to using a FFR scheme. Also, a parameter for controlling interference level between base stations may be different for each frequency partition. The present invention is advantageous in that, when uplink transmission is performed, system throughput and cell edge-user throughput are improved and inter-cell interference level control is efficiently performed.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: January 22, 2013
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Jin Soo Choi, Jong Young Han, Jin Sam Kwak, Wook Bong Lee, Dong Cheol Kim
  • Method for signaling uplink system configuration information
    Patent number: 8355374
    Abstract: A method for transmitting system configuration information about uplink multiplexing of a 16m mobile station (MS) and a 16e MS is disclosed. The method comprises transmitting the system configuration information every super frame comprised of a plurality of radio frames. The system configuration information comprises an uplink configuration of time division multiplexing (TDM) and frequency division multiplexing (FDM) of the 16m MS and the 16m MS for each of the plurality of radio frames.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: January 15, 2013
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Jin Soo Choi, Jin Sam Kwak
  • APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING CONTROL INFORAMTION IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS CARRIER AGGREGATION
    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
  • Method and apparatus for generating ranging signal in wireless communication system
    Patent number: 8351413
    Abstract: A method and apparatus of generating a ranging signal in a wireless communication system is provided. A mobile station (MS) generates a ranging code in which a covering code has been applied to each of a plurality of orthogonal frequency division multiple access (OFDMA) symbols, and maps the ranging code to a plurality of subcarriers constituting each of the OFDMA symbols. The ranging signal is generated by performing OFDMA modulation on each of the OFDMA symbols.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: January 8, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Han Gyu Cho, Jin Sam Kwak, Yeong Hyeon Kwon
  • Method and apparatus for transmitting pilot in wireless communication system
    Patent number: 8351320
    Abstract: A method and apparatus for transmitting a pilot in a wireless communication system is provided. A pilot generating unit generates the pilot. A transmission circuitry transmits the pilot and a radio signal. A a processor assigns a first index and a second index to each of a plurality of pilot patterns, determines a selection pilot pattern having a first selection index and a second selection index calculated based on a cell ID, which are respectively identical with the first index and the second index, from among the plurality of pilot patterns, and maps the generated pilot to a resource element based on the selection pilot pattern.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: January 8, 2013
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Wook Bong Lee, Jin Soo Choi
  • APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20130003690
    Abstract: Disclosed are an apparatus and method for transceiving control information. A base station device which transmits control information according to the present invention has a transmitting antenna which transmits second control information containing information on the resource size of the first control information for uplink power control, to user equipment. A processor determines the resource size of the first control information using the number of uplink subframes and downlink subframes available in one frame, the number of fast feedback channels (FFBCHs), and ceil function.
    Type: Application
    Filed: March 14, 2011
    Publication date: January 3, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Dong Cheol Kim, Jin Young Chun, Han Gyu Cho, Wook Bong Lee
  • Method and apparatus for generating ranging preamble code in wireless communication system
    Patent number: 8345535
    Abstract: A method and apparatus of generating a ranging preamble code in a wireless communication system is provided. A mobile station (MS) generates one of a plurality of ranging preamble codes, wherein the plurality of ranging preamble codes are based on a padded Zadoff-Chu (ZC) sequence to which a cyclic shift is applied in a unit of NCS, where NCS is a function of a cyclic prefix (CP) length in a time domain.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: January 1, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Yeong Hyeon Kwon, Han Gyu Cho, Jin Sam Kwak, Min Seok Noh
  • METHOD FOR PROCESSING SIGNALS RECEIVED FROM A TRANSMISSION DEVICE IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120327855
    Abstract: The present invention provides a method for reducing consumption of resources due to blind decoding when UE (User Equipment) carries out control and data communication with reference to specific embodiments. For example, a communication method according to an embodiment of the present invention can reduce resource consumption of UE by reducing the number of blind decoding according to the information obtained by the UE. In other words, a communication method and apparatus according to one embodiment of the present invention reduces blind decoding of a control channel for control and data communication based on information obtained by UE.
    Type: Application
    Filed: February 10, 2011
    Publication date: December 27, 2012
    Inventors: Hyun Woo Lee, Han Gyu Cho
  • METHOD AND APPARATUS FOR COMMUNICATION WITH A NETWORK IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120327896
    Abstract: The present invention relates to a method and apparatus for performing communications by adjusting a resource unit. Efficient allocation of resource units can minimize power consumption. The minimization of power consumption brings about great advantages to M2M (machine-to-machine) communication. A terminal can transmit or receive data via different resource units. In this case, the resource units can be determined by MS. That is, some MS may use a particular resource unit, while the others may use a different resource unit. When different resource units are given, corresponding radio resource regions are also determined differently from one another. However, the total number of tones corresponding to the resource units may be the same.
    Type: Application
    Filed: March 4, 2011
    Publication date: December 27, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Hyun Woo Lee, Han Gyu Cho
  • Method and apparatus for allocating ranging channel in wireless communication system
    Patent number: 8340041
    Abstract: A method and apparatus of allocating a ranging channel in a wireless communication system is provided. A base station (BS) allocates at least one first ranging channel, having a first structure, and at least one second ranging channel, having a second structure, to a ranging subframe. The first structure or the second structure can be one of the ranging channel structures of an IEEE 802.16e system. A number of orthogonal frequency division multiplexing (OFDM) symbols included in the first structure and a number of OFDM symbols included in the second structure differs from each other. And a guard time including at least one OFDM symbol is allocated between the at least one first ranging channel and the at least one second ranging channel.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: December 25, 2012
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Han Gyu Cho, Jin Sam Kwak, Yeong Hyeon Kwon
  • Method for transmitting uplink pilot signal in wireless communication system and apparatus therefor
    Patent number: 8339933
    Abstract: A method for transmitting an uplink pilot signal in a wireless communication system is disclosed. The method for transmitting an uplink pilot signal in a wireless communication system includes forming a basic unit including a plurality of pilot Resource Elements (REs) and data REs and having a size of 4 subcarriers×9 Orthogonal Frequency Division Multiple Access (OFDMA) symbols, setting the plurality of pilot REs in the basic unit, and transmitting the basic unit to a base station. Each of the REs is time-frequency resource defined by one symbol index and one subcarrier index.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: December 25, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jin-Soo Choi, Han-Gyu Cho, Jin-Sam Kwak, Min-Seok Noh, Sung-Ho Moon
  • METHOD AND DEVICE FOR TRANSMITTING UPLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120320951
    Abstract: Disclosed are a method and a device for transmitting uplink control information (UCI) by a terminal in a wireless communication system. The UCI transmission method comprises the steps of: generating an encoding information bit stream by performing channel coding for a UCI bit stream; generating complex modulation symbols by performing modulation for the generated encoding information bit stream; spreading the complex modulation symbols in block-wise on the basis of an orthogonal sequence; and transmitting the spread complex modulation symbols to a base station. The encoding information bit stream is generated by a channel coding for circularly repeating the UCI bit stream.
    Type: Application
    Filed: February 24, 2011
    Publication date: December 20, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Seung Hee Han, Ji Woong Jang, Jae Hoon Chung, Han Gyu Cho, Yeong Hyeon Kwon, Seung Hyun Kang
  • METHOD FOR TRANSMITTING UPLINK SIGNAL FOR LOCATION-BASED SERVICE AND USER DEVICE, AND METHOD FOR MEASURING LOCATION OF USER DEVICE USING UPLINK SIGNAL AND BASE STATION
    Publication number: 20120320845
    Abstract: In the present invention, an uplink synchronization signal for measuring a location of a user device is assigned to a predetermined uplink sub-frame and a predetermined sub-band and is transmitted to one or adjacent cells as well as a serving cell in a predetermined period. Since the synchronization signal for measuring the location is transmitted to a plurality of cells through the same wireless resource, other date are not transmitted to the same wireless resource and a near-far effect can be reduced in each cell.
    Type: Application
    Filed: January 13, 2011
    Publication date: December 20, 2012
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak