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 ALLOCATING WIRELESS RESOURCE IN WIRELESS COMMUNICATION SYSTEM INCLUDING RELAY STATION
    Publication number: 20120207081
    Abstract: Provided are a method and an apparatus for allocating a wireless resource in a wireless communication system including a relay station. A sub-channelization parameter for a relay zone is transmitted and a wireless resource is allocated to a relay station on the basis of the sub-channelization parameter. The relay zone is the zone for transmitting a signal from a base station to the relay station or receiving the signal from the relay station within a frame and the wireless resource allocated in the relay station is the remaining physical resource units (PRUs) except the PRUs allocated in a distributed resource unit (DRU).
    Type: Application
    Filed: September 17, 2010
    Publication date: August 16, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Han Gyu Cho, Jin Young Chun, Jin Sam Kwak
  • POWER-SAVING METHOD IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120201182
    Abstract: The present invention relates to a power-saving method in a wireless communication system. In a power-saving method for a terminal of a wireless communication system according to one aspect of the present invention, the terminal receives configuration information relating to power-saving from a base station and operates in a power-down mode in which receive processing is not carried out in accordance with the configuration information relating to power saving; and the configuration information comprises at least one or other of information relating to a time point at which the base station is not transmitting packets to the terminal and a time point at which the base station is transmitting packets to the terminal.
    Type: Application
    Filed: June 23, 2010
    Publication date: August 9, 2012
    Applicant: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Han Gyu Cho, Sung Ho Moon, Kyu Jin Park, Seung Hee Han, Jae Hoon Chung
  • CONTROL INFORMATION TRANSMISSION AND RECEIVING METHOD FOR GROUP COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120190394
    Abstract: The present invention relates to a method for transmitting and receiving control information for group communications in a wireless communication system. According to one aspect of the present invention, a control information transmission method for group communication in a wireless communication system comprises the steps of, a base station: receiving a group communication request from one or more terminals; determining a plurality of terminals which will perform the group communication; allocating resources which are to be used for performing the group communication; and transmitting information on the plurality of terminals and resource allocation information on the resources which are to be used, to the one or more terminals among the plurality of terminals.
    Type: Application
    Filed: June 15, 2010
    Publication date: July 26, 2012
    Inventors: Yeong Hyeon Kwon, Han Gyu Cho, Jin Sam Kwak, Jae Hoon Chung, Sung Ho Moon
  • METHOD AND AN APPARATUS FOR TRANSMITTING SIGNALS FOR LOCATION BASED SERVICE, AND A METHOD AND AN APPARATUS FOR MEASURING LOCATION RELATED INFORMATION BASED ON THE SIGNALS
    Publication number: 20120190381
    Abstract: A wireless communication system is disclosed. The wireless communication system transmits a location measure signal for determining a location of a user equipment to the user equipment by allocating the location measure signal to at least one of symbols to which a synchronization signal is transmitted conventionally. In this case, a location related parameter of the user equipment can be measured with higher accuracy.
    Type: Application
    Filed: August 19, 2010
    Publication date: July 26, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak, Seung Hee Han
  • Method for designing mini resource unit and transmission for a distributed resource unit in consideration of space frequency block code
    Patent number: 8218662
    Abstract: A method and device for wirelessly communicating between a mobile communication terminal and a base station, including exchanging one or more resource units between the base station and the mobile communication terminal, each resource unit having 18 subcarriers by a plurality of Orthogonal Frequency Division Multiple Access (OFDMA) symbols. The one or more resource units are permutated using X contiguous subcarriers as a permutation unit in each OFDMA symbol, wherein X is a positive integer that is a multiple of 2 as well as a divisor of 18.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: July 10, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Wook Bong Lee, Han Gyu Cho, Jin Sam Kwak, Bin Chul Ihm
  • METHOD AND APPARATUS FOR TRANSMITTING FRAME IN WIRELESS COMMUNICATION SYSTEM INCLUDING RELAY STATION
    Publication number: 20120170506
    Abstract: Provided are a method and an apparatus for transmitting a frame in a wireless communication system including a relay station. A base station sets a frame including a downlink (DL) access zone for transmitting a signal to the relay station and a DL relay zone for transmitting the signal to the relay station or a terminal, and transmits the frame. The DL access zone comprises a multiple-input multiple-output (MIMO) midamble for the terminal and the DL relay zone comprises an R-amble as an additional MIMO midamble.
    Type: Application
    Filed: September 13, 2010
    Publication date: July 5, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Jin Young Chun, Han Gyu Cho, Jin Sam Kwak, Dong Guk Lim, Bin Chul Ihm, Young Soo Yuk
  • Method of mapping resource unit in wireless communication system
    Patent number: 8208441
    Abstract: A method and an apparatus of mapping a resource unit is provided. Physical resource units (PRUs) are divided into a plurality of PRU sets. The PRUs are mapped to a subband PRU or a miniband PRU in a granularity of the PRU set. The mapping is based on the greatest common divisor of the maximum number of PRU sets. The resource unit can be effectively mapped while maximizing a frequency diversity gain of a subband PRU and a miniband PRU.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: June 26, 2012
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Jinsoo Choi, Jin Sam Kwak, Seung Hyun Kang, Sung Ho Moon
  • METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL IN TIME DIVISION DUPLEX SYSTEM
    Publication number: 20120155338
    Abstract: A method and apparatus of transmitting a reference signal in a time division duplex (TDD) system is provided. A base station (BS) generates a plurality of demodulation reference signals (DMRSs) for respective layers, maps the plurality of DMRSs to a downlink pilot time slot (DwPTS) region for downlink transmission within a special subframe; and transmits the plurality of DMRSs through a plurality of antennas. The special subframe is a subframe for separating uplink and downlink between an uplink (UL) subframe and a downlink (DL) subframe within a frame.
    Type: Application
    Filed: September 13, 2010
    Publication date: June 21, 2012
    Inventors: Min Seok Noh, Jae Hoon Chung, Han Gyu Cho, Yeong Hyeon Kwon
  • METHOD AND APPARATUS FOR TRANSMITTING A SIGNAL FOR A LOCATION BASED-SERVICE IN A WIRELESS COMMUNICATION SYSTEM, AND METHOD AND APPARATUS FOR LOCATING A TERMINAL THAT USES THE SIGNAL
    Publication number: 20120157117
    Abstract: The present invention relates to a wireless communication system. In particular, for the transmission of a locating zone configured across one or more superframes for transmitting a locating synchronizing signal for determining the location of a terminal in a wireless communication system, the wireless communication system of the present invention transmits, to a terminal, a superframe header including information indicating whether or not to transmit the locating zone. Thus, the terminal can discern a terminal belonging to the location zone form among superframes received by the terminal.
    Type: Application
    Filed: July 20, 2010
    Publication date: June 21, 2012
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak, Seung Hee Han
  • UL FFR-BASED SIGNAL TRANSMISSION METHOD
    Publication number: 20120157155
    Abstract: The present invention relates to a method for transmitting control information in a multi-cell based mobile communication system, the method comprising: extracting information on a fractional frequency reuse (FFR) pattern that represents whether terminal transmission power for a plurality of frequency resource groups is boosted to apply uplink fractional frequency reuse (UL FFR) to a particular cell; and broadcasting power control information that is configured separately by each of the plurality of frequency resource groups based on the extracted FFR pattern.
    Type: Application
    Filed: August 24, 2010
    Publication date: June 21, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Han Gyu Cho, Wook Bong Lee, Dong Cheol Kim
  • Measurement Reporting Method And Device In A Wireless Communication System
    Publication number: 20120155312
    Abstract: Provided are a measurement reporting method and device in a wireless communications system. A mobile station receives data relating to a measurement set for K (M?N) component carriers to be measured from among N component carriers, from a base station. The mobile station measures the K component carriers. The mobile station then reports the results of the measurement of the K component carriers to the base station.
    Type: Application
    Filed: June 11, 2010
    Publication date: June 21, 2012
    Inventors: So Yeon Kim, Han Gyu Cho, Sung Ho Moon, Yeong Hyeon Kwon, Jae Hoon Chung
  • Method and apparatus of subchannelization in wireless communication system
    Patent number: 8204021
    Abstract: A method and an apparatus of subchannelization is provided. The method includes receiving information indicating the number of physical resource unit (PRU) sets allocated to a subband from a base station, and mapping PRUs of a physical region to a subband PRU or a miniband PRU in a granularity of the PRU set according to the received information, wherein the subband PRU is allocated with at least one subband comprising a first number of contiguous PRUs, the miniband PRU is allocated with at least one miniband comprising a second number of PRUs, and the PRU set comprises PRUs whose number is equal to the number of PRUs included in one subband. Subchannelization can be effectively achieved while maintaining a frequency selective scheduling gain and a frequency diversity gain to the maximum extent possible.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: June 19, 2012
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Jinsoo Choi, Jin Sam Kwak, Seung Hyun Kang, Sung Ho Moon
  • Method and apparatus for mapping resource unit in wireless communication system
    Patent number: 8204020
    Abstract: A method and apparatus for mapping a resource unit in a wireless communication system is provided. The method includes obtaining a frequency partition (FP) count (FPCT), an size of FPi (FPS) for i>0, and subband (SB) count of FPi (FPSC) for i>0 (where FPi is an ith FP), obtaining a value KSB,FPi indicating an SB count for FPi and a value KMB,FPi indicating a miniband (MB) count for FPi on the basis of the FPCT, the FPS, and the FPSC, and mapping an SB PRU including a plurality of contiguous physical resource units (PRUs) and an MB PRU including a plurality of contiguous PRUs to each FP in a granularity of a PRU set on the basis of the values KSB,FPi and KMB,FPi. Each FP can obtain a frequency selective scheduling gain based on the SB and a frequency diversity gain based on the MB.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: June 19, 2012
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Jinsoo Choi, Jin Sam Kwak, Seung Hyun Kang, Sung Ho Moon
  • METHOD FOR RETRANSMITTING DATA IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120127897
    Abstract: A method for retransmitting data in wireless communication system is disclosed. MS can receive a NACK (Not-Acknowledge) signal from a base station (BS) through a specific downlink subframe of a specific frame in a first superframe, and the MS can retransmits the data using a second uplink subframe in a first frame in a second superframe subsequent to a first superframe. In this case, a index of the second uplink subframe may be 1. The wireless communication system can support the Half-Frequency Division Duplex (H-FDD) scheme. A first uplink subframe in the first frame of the second superframe can be punctured.
    Type: Application
    Filed: February 22, 2010
    Publication date: May 24, 2012
    Inventors: Jian Xu, Young Soo Yuk, Dong Guk Lim, Han Gyu Cho, Yong Ho Kim, Jin Sam Kwak
  • APPARATUS AND METHOD FOR PERFORMING COMMUNICATION USING H-FDD FRAME STRUCTURE IN MOBILE COMMUNICATION SYSTEM
    Publication number: 20120127898
    Abstract: Disclosed are an apparatus and a method for performing communication using a half-frequency division duplex (H-FDD) frame structure in a mobile communication system. A user equipment for performing communication using an H-FDD frame structure according to the present invention comprises an RF unit in which each user equipment group receives and transmits signals using the H-FDD frame structure wherein the order of the downlink zone and uplink zone are reversely allocated to each of the groups. The downlink zone and uplink zone, which are allocated to each of the user equipment groups in the H-FDD frame structure, include a sub-frame wherein one or more symbols are allocated to idle time slots or are punctured. Each of the user equipment groups can receive and transmit signals using symbols that are not allocated to the idle time slots or are not punctured in the sub-frame.
    Type: Application
    Filed: June 17, 2010
    Publication date: May 24, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Dong Guk Lim, Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak, Yeong Hyeon Kwon, Sung Ho Moon
  • METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING A CONTROL FORMAT INDICATOR CHANNEL FOR A RELAY BACKHAUL LINK IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120121028
    Abstract: The present invention relates to a method and an apparatus for transmitting/receiving a control format indicator channel for a relay backhaul link in a wireless communication system. According to one aspect of the present invention, a method for transmitting a control format indicator channel for a relay backhaul link in a wireless communication system is configured such that a base station generates a relay physical control format indicator channel (hereinafter, referred to as “R-PCFICH”) containing information on a relay physical downlink control channel (hereinafter, referred to as “R-PDCCH”) region, and transmits the R-PCFICH through a first OFDM symbol of the R-PDCCH region.
    Type: Application
    Filed: July 14, 2010
    Publication date: May 17, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: So Yeon Kim, Han Gyu Cho, Sung Ho Moon, Gyu Jin Park, Yeong Hyeon Kwon, Jae Hoon Chung
  • METHOD FOR TRANSMITTING A RANGING SIGNAL IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120113955
    Abstract: The present invention relates to a method in which a terminal transmits a ranging signal in a wireless communication system. The method comprises a step of acquiring cell identification information using the preamble received from a base station, a step of determining frequency resource allocation information using the cell identification information and information on the number of allocated subbands, and a step of transmitting a ranging signal using the sub-band indicated by the frequency resource allocation information.
    Type: Application
    Filed: July 12, 2010
    Publication date: May 10, 2012
    Applicant: LG Electronics Inc.
    Inventors: Han Gyu Cho, Jin Sam Kwak, Hyun Woo Lee, Jin Soo Choi
  • METHOD AND APPARATUS FOR TRANSMITTING ACKNOWLEDGEMENT IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120113945
    Abstract: Provided is a method for transmitting an acknowledgment through a base station in a multi-carrier system. The method for transmitting the acknowledgment through the base station in the multi-carrier system comprises the steps of receiving a plurality of uplink transmission blocks through at least one uplink carrier; determining a downlink channel for transmitting a plurality of ACK/NACK signals corresponding to the transmission blocks on the basis of the at least one uplink carrier; and transmitting the ACK/NACK signals on the determined downlink channel.
    Type: Application
    Filed: October 20, 2010
    Publication date: May 10, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Sung Ho Moon, So Yeon Kim, Han Gyu Cho, Seung Hee Han, Jae Hoon Chung
  • WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE TRANSMISSION ANTENNAS USING PILOT SUBCARRIER ALLOCATION
    Publication number: 20120106534
    Abstract: A method for allocating pilot subcarriers in a resource block for a wideband wireless mobile communication system using an orthogonal frequency division multiplexing (OFDMA) modulation is discussed. In this method, pilot subcarriers are allocated in the resource block so that a group of consecutive data subcarriers separated from adjacent other group of consecutive data subcarriers by the pilot subcarriers has even number of subcarriers within an OFDMA symbol.
    Type: Application
    Filed: January 10, 2012
    Publication date: May 3, 2012
    Inventors: Jin Soo CHOI, Han Gyu CHO, Bin Chul IHM, Wook Bong LEE
  • SYNCHRONIZATION ACQUISITION METHOD AND APPARATUS IN MULTI-CARRIER SYSTEM
    Publication number: 20120099565
    Abstract: Provided are a synchronization acquisition method and apparatus in a multi-carrier system. A terminal acquires the synchronization for a first downlink component carrier by detecting a primary synchronization signal (PSS) and a secondary synchronization signal (SSS) in the first downlink component carrier. The terminal acquires the synchronization for a second downlink component carrier by detecting a reference signal in the second downlink component carrier.
    Type: Application
    Filed: June 21, 2010
    Publication date: April 26, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: So Yeon Kim, Han Gyu Cho, Jae Hoon Chung, Sung Ho Moon, Seung Hee Han, Yeong Hyeon Kwon