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: 8879446
    Abstract: The present invention relates to a femto base station. More particularly, the present invention relates to a method for transmitting a common control channel and to a femto base station for the same. The present invention relates to a method for transmitting a common control channel, comprising a step in which the femto base station acquires segment information from a macro base station which overlays the femto base station; a step of identifying, using the segment information, a time segment used by the macro base station in transmitting the common control channel; and a step of transmitting a common control channel of the femto base station on a time segment other than the time-segment identified in the previous step. The present invention also relates to a femto base station for the method.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: November 4, 2014
    Assignee: LG Electronics Inc.
    Inventors: Sung Ho Moon, Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak, Hyun Woo Lee
  • Patent number: 8861325
    Abstract: A method for configuring subchannels for an uplink data transmission at a base station in a wireless communication system is disclosed herein. More specifically, the method includes the steps of dividing an uplink transmission resource to PUSC (Partial Usage of SubChannel) tiles of 4 subcarriers×3 symbols, configuring subchannels to 6 PUSC tiles based on a predetermined rule; allocating a predetermined number of contiguous subchannels among the configured subchannels as subchannels for a legacy system, and allocating the remaining subchannels as subchannels for the wireless communication system, wherein a subchannel rotation per slot consisting of 3 symbols is applied to the subchannels for the legacy system, and wherein the subchannel rotation per slot is based on a number of subchannels for the legacy system.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: October 14, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak, Jin Young Chun
  • Patent number: 8855034
    Abstract: A method of allocating a paging carrier in a multi-carrier environment is disclosed. The method of allocating the paging carrier includes receiving a first message including first allocation information of the paging carrier, transmitting a second message for requesting entry into an idle mode to a base station; and receiving a third message including second allocation information of a changed paging carrier from the base station. At this time, the paging carrier includes a paging channel out of multiple carriers including one or more carriers.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: October 7, 2014
    Assignee: LG Electronics Inc.
    Inventors: Gi Won Park, Ki Seon Ryu, Yong Ho Kim, Young Soo Yuk, Doo Hyun Sung, Han Gyu Cho, Jae Hoon Chung, Kyu Jin Park, Eun Jong Lee
  • Patent number: 8848678
    Abstract: A method of performing hybrid automatic repeat request (HARQ) in a wireless communication system is provided. The method includes receiving a system configuration signal, the system configuration signal comprising frame configuration information and HARQ delay information, receiving a downlink (DL) signal in a DL subframe and transmitting an acknowledgement (ACK)/not-acknowledgement (NACK) signal for the DL signal in a UL subframe.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: September 30, 2014
    Assignee: LG Electronics Inc.
    Inventors: Doo Hyun Sung, Han Gyu Cho, Sung Ho Moon
  • Patent number: 8848763
    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: Grant
    Filed: February 24, 2011
    Date of Patent: September 30, 2014
    Assignee: LG Electronics Inc.
    Inventors: Seung Hee Han, Ji Woong Jang, Jae Hoon Chung, Han Gyu Cho, Yeong Hyeon Kwon, Seung Hyun Kang
  • Publication number: 20140286265
    Abstract: The invention relates to a method of transmitting an uplink signal at a communication apparatus in a wireless communication system.
    Type: Application
    Filed: June 4, 2014
    Publication date: September 25, 2014
    Inventors: Kyu Jin PARK, Han Gyu CHO, Yeong Hyeon KWON, Jae Hoon CHUNG
  • Patent number: 8843145
    Abstract: Provided are a method and a device for data transmission in a multiple carrier wave system. With respect to a carrier wave that includes a first guard band, a data band, and a second guard band on a frequency domain, at least one guard physical resource unit (guard PRU) is allocated to at least one of said first guard band and said second guard band, said guard PRU is mapped to a contiguous resource unit (CRU), and data are transmitted via the CRU to which said guard PRU is mapped. The CRU to which said guard PRU has been mapped is mapped to a contiguous logical resource unit (CLRU). The index of the CRU to which said guard PRU has been mapped and the index of the CRU to which the PRU of said data band has been mapped may be continuous.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: September 23, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Jin Soo Choi, Jin Sam Kwak, Young Soo Yuk, Sung Ho Moon
  • Patent number: 8837334
    Abstract: A method for receiving control information and a control information signaling receiving method are disclosed. If A-MAP information is allocated and transmitted, signaling overhead is greatly reduced, resulting in improved system performance. In addition, the method increases the number of data transmission areas in inverse proportion to control signaling overhead. In accordance with the method for receiving control information signaling, a mobile station correctly recognizes a location to which A-MAP information is allocated and transmitted, resulting in increased control information decoding efficiency.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: September 16, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Jin Sam Kwak, Han Gyu Cho, Sung Ho Moon
  • Patent number: 8811255
    Abstract: The present invention relates to a wireless communication system, and more particularly, to a method for allocating a resource for multicast and/or broadcast service data in a wireless communication system and apparatus therefore. The present invention includes the steps of dividing a downlink frequency band into a plurality of frequency partitions, allocating one or more subbands in a certain frequency partition among the plurality of frequency partitions to the MBS data, and c) allocating one or more subbands in each remaining frequency partitions one by one to the MBS data, if the number of subbands required for transmitting the MBS data (KSB,E MBS) is larger than the number of subbands in the certain frequency partition.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: August 19, 2014
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Jinsoo Choi, Han Gyu Cho, Jin Sam Kwak, Wook Bong Lee
  • Patent number: 8804602
    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: Grant
    Filed: September 13, 2010
    Date of Patent: August 12, 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: 8804588
    Abstract: A method for saving power in a multi-carrier wideband wireless access system is provided. A method for saving the power of a receiver in a multi-carrier wireless communication system includes acquiring multi-carrier information from a transmitter on a primary carrier, entering one or more secondary carriers satisfying a predetermined power saving mode entry condition out of one or more secondary carriers included in the multi-carrier information into a power saving mode, and receiving data during a listening interval according to the power saving mode on the one or more secondary carriers entering the power saving mode. The multi-carrier information includes at least one of information about a plurality of available carriers, information indicating the primary carrier and the one or more secondary carriers out of the plurality of available carriers, and information about the power saving mode entry condition of the one or more secondary carriers.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: August 12, 2014
    Assignee: LG Electronics Inc.
    Inventors: Eun Jong Lee, Moon Il Lee, Hyun Soo Ko, Hyung Ho Park, Doo Hyun Sung, Han Gyu Cho, Jae Hoon Chung, Jong Young Han, Kyu Jin Park, Seung Hee Han, Jin Soo Choi
  • Patent number: 8805429
    Abstract: Disclosed is a method for a serving base station in a wireless communication system to mitigate inter-cell interference. More specifically, the method comprises the steps of: allocating a first resource for a terminal existing in a first region in which the coverage of the serving base station and the coverage of a neighboring base station are overlapped with each other; and allocating a second resource with the first resource for a terminal existing in a second region of the coverage of the serving base station, which is outside of the coverage of the neighboring base station. Desirably, the first resource is for the serving base station only with reuse factor of ½, and the second resource is shared with the neighboring base station with reuse factor of 1.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: August 12, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Sung Ho Moon, Jin Soo Choi, Jin Sam Kwak
  • Patent number: 8797963
    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: Grant
    Filed: January 13, 2011
    Date of Patent: August 5, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak
  • Patent number: 8797979
    Abstract: The present invention relates to a method for a terminal for transmitting an uplink control signal, i.e., an ACK/NACK (Acknowledgement/Negative-ACK) signal, in a wireless communication system. In particular, the method comprises: mapping part of the ACK/NACK signals to selection information, which is composed of a combination of message areas and reference signal areas; independently selecting one message area and one reference signal from a plurality of control channel resources that are located in the same resource block, based on the mapped selection information; allocating the selected message area to the other ACK/NACK signals; and transmitting the ACK/NACK signal to a base station by using the selected message area and the selected reference signal area.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: August 5, 2014
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, So Yeon Kim, Han Gyu Cho, Jae Hoon Chung, Seung Hee Han
  • Patent number: 8792327
    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: Grant
    Filed: July 14, 2010
    Date of Patent: July 29, 2014
    Assignee: LG Electronics Inc.
    Inventors: So Yeon Kim, Han Gyu Cho, Sung Ho Moon, Gyu Jin Park, Yeong Hyeon Kwon, Jae Hoon Chung
  • Patent number: 8780844
    Abstract: Provided are a method and apparatus for allocating resources for enhanced multicast broadcast service (E-MBS) data in a wireless communication system. A base station divides a frequency region into at least one frequency partition and allocates subbands of KSB,E-MBS number as the resources for the E-MBS data in the frequency partition. One sub-band includes sub-band logical resource units (SLRUs) of N1 number and the SLRUs of N1 number have continuous indexes among a plurality of physical resource units (PRUs) included in the frequency partition and are the PRUs to be allocated to contiguous resource units (CRUs).
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: July 15, 2014
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Jin Soo Choi, Dong Cheol Kim
  • Publication number: 20140192720
    Abstract: A method for efficiently transmitting and receiving a paging message and system information from and in a mobile station of a broadband wireless access system is disclosed. A method for receiving a paging message in a mobile station comprises receiving paging information from a serving base station, the paging information including paging sub group identifier (paging sub group ID) indicating a paging sub group to which the mobile station belongs; and receiving the paging message for a predetermined paging interval of the paging sub group, wherein the paging sub group is determined separately from a paging group and a geographical location determining the paging group, and is maintained while the mobile station is being operated in an idle mode.
    Type: Application
    Filed: January 29, 2014
    Publication date: July 10, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Eun Jong LEE, Doo Hyun SUNG, Jin Soo CHOI, Han Gyu CHO, Jong Young HAN, Kyu Jin PARK, Hyung Ho PARK, Jae Hoon CHUNG
  • Patent number: 8774081
    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: Grant
    Filed: February 11, 2010
    Date of Patent: July 8, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Han Gyu Cho, Yeong Hyeon Kwon, Jae Hoon Chung
  • 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: 8767775
    Abstract: A signal transmission method is provided, wherein, when a transmitter transmits a signal to a receiver, a transmitter processor multiplexes a plurality of data for a plurality of connections to be transmitted to one specific receiver, and constitutes a multiplexed medium access control (MAC) packet data unit (PDU) containing a MAC header part for receiving the multiplexed data, and a MAC PDU payload containing the multiplexed data, and the transmitter transmits the multiplexed MAC PDU to the specific receiver. The MAC header part includes a first header part containing a generic MAC header, and a second header part containing an extended header indicator serving as a 1-bit indicator for indicating the existence of an extended header (EH) for each flow ID for each of the plurality of connections. The MAC header part further includes a third header part which selectively contains the extended header for each flow ID in accordance with the extended header indicators for each flow ID.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: July 1, 2014
    Assignee: LG Electronics Inc.
    Inventors: Eun Jong Lee, Han Gyu Cho, Jae Hoon Chung, Kyu Jin Park, Ki Seon Ryu