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).

  • Patent number: 8768257
    Abstract: Provided are a method and an apparatus for releasing a blank zone by a macro base station in a wireless communication system. The macro base station: receives channel information from a macro terminal that is serviced therefrom; determines based on the channel information whether or not a downlink blank zone allocated to a resource zone of a femto bas station is released; and transmits downlink blank zone release information to the femto base station if the downlink blank zone is supposed to be released. The downlink blank zone is a resource zone which restricts the downlink transmission, among all the resource zones used by the femto base station. The channel information may be the information about the distance between the femto base station and the macro terminal.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: July 1, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Doo Hyun Sung
  • Patent number: 8755326
    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: Grant
    Filed: December 10, 2010
    Date of Patent: June 17, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Sung Ho Moon, Yeong Hyeon Kwon, Jae Hoon Chung, Han Gyu Cho
  • Patent number: 8743815
    Abstract: An SA-Preamble corresponding to an irregular system bandwidth different from a regular system bandwidth is configured to be as long as or larger than the irregular system bandwidth and transmitted. Thus, the performance of transmitting and receiving the SA-Preamble is increased.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: June 3, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak
  • Patent number: 8743904
    Abstract: A data transmission method in a system comprising at least one or more relays includes transmitting by a mobile station a bandwidth allocation request message to a relay, receiving by the mobile station a bandwidth allocation message from the relay, the bandwidth allocation message including information for indicating an offset from a frame where the bandwidth allocation message is contained, waiting by the mobile station for an uplink frame or uplink subframe indicated by the offset from the frame where the bandwidth allocation message is contained, and transmitting data on the indicated frame or subframe.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: June 3, 2014
    Assignee: LG Electronics Inc.
    Inventors: Dong-Guk Lim, Han-Gyu Cho, Jong-Young Han, Jin-Sam Kwak
  • Patent number: 8744463
    Abstract: The present invention relates to a wireless communication system. Particularly, in configuring a location estimation subframe for determining the location of a terminal in a wireless communication system, the present invention involves replacing a portion of repeating patterns of a channel estimation pilot in the location estimation subframe with a location estimation pilot. In this way, the present invention is capable of transmitting a location estimation reference signal for a location-based service to the terminal while minimizing influences on an existing wireless frame structure.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: June 3, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Jin Sam Kwak, Han Gyu Cho, Sung Ho Moon
  • Patent number: 8730850
    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: Grant
    Filed: September 13, 2010
    Date of Patent: May 20, 2014
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Jae Hoon Chung, Han Gyu Cho, Yeong Hyeon Kwon
  • Patent number: 8724581
    Abstract: A method of allocating resources in a wireless communication system includes dividing an available frequency band on a logical plane into a distributed zone and a localized zone, dividing the distributed zone into a plurality of subparts in time domain, and dividing the distributed zone and the localized zone into a distributed zone and a localized zone on a physical plane. The plurality of subparts included in one distributed zone on the logical plane is mapped to a different distributed zone on the physical plane.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: May 13, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Ki Ho Nam, Seung Woo Nam, Jin Soo Choi, Jong Young Han
  • Patent number: 8724571
    Abstract: The present invention relates to a wireless communication system. More particularly, the present invention relates to a method and to an apparatus in which a terminal processes a downlink control channel in a wireless communication system that supports carrier aggregation. The method comprises the steps of: checking a plurality of carrier groups from a plurality of downlink component carriers (DL CCs); receiving a control information region through at least a portion of the plurality of DL CCs; performing blind decoding on control channels in the control information region in a first carrier group; and performing blind decoding on control channels in the control information region in a second carrier group. The present invention also relates to an apparatus for the method.
    Type: Grant
    Filed: March 20, 2010
    Date of Patent: May 13, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jae Hoon Chung, Han Gyu Cho, So Yeon Kim, Yeong Hyeon Kwon
  • Patent number: 8724540
    Abstract: The present invention provides a reference signal transmission method and apparatus by a base station in a wireless communication system including a relay station. The base station generates a plurality of relay-physical downlink control channel (R-PDCCH) reference signals for the demodulation of an R-PDCCH which is a control channel for the relay station relative to each of a plurality of layers, maps the plurality of R-PDCCH reference signals with R-PDCCH regions included in a relay zone within at least one resource block according to a predetermined reference signal pattern, and transmits at least one resource block through a plurality of antenna ports.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: May 13, 2014
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Han Gyu Cho, Kyu Jin Park, Jae Hoon Chung, Sung Ho Moon
  • Publication number: 20140126417
    Abstract: The present invention relates to a method for preventing a peer discovery signal collision, which can occur in a device-to-device (D2D) communication system, and to a wireless device using same. According to one embodiment of the present invention, a method for communicating between wireless devices by using a peer discovery slot is provided. The method comprises the steps of transmitting a first peer discovery signal through a first peer discovery channel that is selected from a plurality of peer discovery channels, receiving a second peer discovery signal that is transmitted by a neighboring wireless device, confirming a second discovery channel, from which the second peer discovery signal is detected, from the plurality of peer discovery channels, and transmitting a feedback signal through a response channel that corresponds to the second peer discovery channel from a plurality of response channels.
    Type: Application
    Filed: July 13, 2012
    Publication date: May 8, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Seung Hyun Kang, Han Gyu Cho, Dong Guk Lim
  • Patent number: 8718010
    Abstract: A method of transmitting a frame of a relay station (RS) in a wireless communication system employing the RS is provided. The method includes: receiving frame configuration information on an RS frame from a base station (BS); configuring a frame including a downlink (DL) access zone for transmitting a signal to a relay user equipment (UE), a DL receive zone for receiving a signal from the BS, an uplink (UL) access zone for receiving a signal from the relay UE connected to the RS, a UL transmit zone for transmitting a signal to the BS, and a transition gap; and transmitting a signal in at least one of the UL access zone and the UL transmit zone, wherein the transition gap is a switching time between a transmission operation and a reception operation of the RS and is included in at least one of the DL access zone and the UL transmit zone.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: May 6, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Young Chun, Han Gyu Cho, Jin Sam Kwak, Dong Guk Lim, Bin Chul Ihm, Young Soo Yuk
  • Patent number: 8713415
    Abstract: Provided is a method for generating codewords. The method comprises the following steps: receiving an information bit; generating a generating matrix in which a size of a column is identical with a length of the information bit, a size of a row is 24 rows, and values of symbols that are elements of the matrix are 0 or 1; modifying the generating matrix by dividing the generated generating matrix into an upper group and a lower group having an identical size and replacing rows so that the number of symbols having a value of 1 in the upper group is identical with the number of symbols having a value of 1 in the lower group; and obtaining inner products from the information bit and each row of the modified generating matrix and generating codewords from remainders obtained by dividing the inner products by 2.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: April 29, 2014
    Assignee: LG Electronics Inc.
    Inventors: Ji Woong Jang, Seung Hee Han, Han Gyu Cho
  • Patent number: 8707119
    Abstract: A terminal unit for receiving a hybrid automatic retransmission request (HARQ) feedback using a frequency division duplex (FDD) frame comprises: a receiver, which receives an uplink assignment information element (A-MAP IE) for allocating each uplink through each downlink subframe of a first frame from a base station; a processor, which performs a process for transmitting uplink data that corresponds to the received A-MAP IE for allocating each uplink for a predetermined processing time: a transmitter, which transmits the processed uplink data to the base station from the respective downlink subframes having received the A-MAP IE for allocating each uplink, through each corresponding uplink subframe, after the predetermined processing time has lapsed; and a receiver, which receives, from the base station, the downlink HARQ feedback for each uplink data through each uplink subframe that has, in a third frame, the same index as the index of each downlink subframe where the A-MAP IE for allocating each uplink ha
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: April 22, 2014
    Assignee: LG Electronics Inc.
    Inventors: Dong Guk Lim, Jin Sam Kwak, Han Gyu Cho
  • Patent number: 8705430
    Abstract: The present invention relates to a method and apparatus for signaling, to user equipment, the number and position of frequency resources allocated to each of the plurality of E-MBS zones, using a zone allocation bitmap including bits corresponding to the number of resources allocated for one or more E-MBS zones. The method and apparatus of the present invention are advantageous in that signaling overheads required for specifying the number and position of frequency resources allocated to each of E-MBS zones can be reduced.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: April 22, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak
  • Patent number: 8687578
    Abstract: A method for allocating the resources of a remaining region other than a region carrying a SuperFrame Header (SFH) and signaling the resource allocation is disclosed. A Mobile Station (MS) receives resource allocation information about a remaining region other than a region carrying an SFH in a predetermined channel bandwidth by the SFH from a Base Station (BS) and decodes the received resource allocation information. The MS decodes control information efficiently by receiving repetition number information about a sub_secondary SFH (sub_S-SFH) or sub_secondary Broadcast CHannel (sub_S-BCH) from the BS by a Primary SFH (P-SFH) or Primary BCH (P-BCH).
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: April 1, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Jin Sam Kwak, Han Gyu Cho, Sung Ho Moon
  • Patent number: 8681734
    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: Grant
    Filed: July 12, 2010
    Date of Patent: March 25, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Jin Sam Kwak, Hyun Woo Lee, Jin Soo Choi
  • Patent number: 8682344
    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: Grant
    Filed: August 19, 2010
    Date of Patent: March 25, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak, Seung Hee Han
  • Patent number: 8675565
    Abstract: The present invention relates to a method and device for monitoring the control channel in a multiple carrier system. A terminal determines an extended search space comprising a plurality of sub-search spaces, and each of the plurality of sub-search spaces corresponds to at least one of a plurality of scheduled component carriers. The terminal monitors a downlink control channel for the scheduled component carrier corresponding to each of the plurality of sub-search spaces. At least one of the plurality of sub-search spaces is a shared sub-search space corresponding to at least two of the plurality of scheduled component carriers.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: March 18, 2014
    Assignee: LG Electronics Inc.
    Inventors: So Yeon Kim, Sung Ho Moon, Jae Hoon Chung, Yeong Hyeon Kwon, Han Gyu Cho
  • Patent number: 8670389
    Abstract: A method of transmitting a cell type information, which is transmitted by a base station in a wireless communication system, is disclosed. The present invention includes broadcasting a boundary point information (Z) between a cell identity of a public ABS (advanced base station) and a cell identity of a private ABS via an S-SFH SP3 (secondary-super frame header subpacket3). In this case, the boundary point information (Z) is a range information of cell identity partitions partitioned by granularity of 10 sequences or 20 sequences per segment and a total number of the cell identity partitions is 16. Further, the range information of cell identity partitions includes information that all cell identities are cell identities of the private ABS or information that all cell identities are cell identities of the public ABS except for cell identities of a macro ABS.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: March 11, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak
  • Publication number: 20140064128
    Abstract: The methods and an apparatuses for scanning in WLAN are disclosed. A method of a scanning of a station (STA) may include monitoring a channel during a probedelay based on a MAC sublayer management entity (MLME)-SCAN.request primitive indicating an active scanning for a target Access Point (AP), receiving a frame including a channel congestion indicator from an AP during the probedelay, generating a MLME-SCAN.change request primitive to request a change of a scanning type parameter included in the MLME-SCAN.request primitive when the channel congestion indicator indicates that the channel is congested, generating a MLME-SCAN.change confirm primitive to confirm the change of the scanning type parameter included in the MLME-SCAN.request primitive as a response of the MLME-SCAN.change request primitive, and performing a passive scanning for the target AP based on the MLME-SCAN.change confirm primitive.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 6, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Gi Won PARK, Ki Seon RYU, Jin Sam KWAK, Han Gyu CHO