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: 9001708
    Abstract: The mobile station for transceiving signals using a predetermined time division duplex (TDD) frame structure in a wireless communication system includes a receiver for receiving a midamble from a base station (BS), and a relay station (RS). The receiver receives, from the BS, a first midamble through a second subframe of a downlink access zone of the BS and/or through a first subframe of a downlink relay zone that follows the downlink access zone. Alternatively, the receiver receives, from the RS, a second midamble through a second subframe of a downlink access zone of the RS. A transition gap in a downlink region is located in the last subframe of the downlink access zone of the RS, which follows the downlink access zone of the RS, and a transition gap in an uplink region is located in a first subframe of an uplink relay zone of the RS.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: April 7, 2015
    Assignee: LG Electronics Inc.
    Inventors: Dong Guk Lim, Young Soo Yuk, Jian Xu, Han Gyu Cho, Jin Young Chun, Jin Sam Kwak
  • Patent number: 9002394
    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: Grant
    Filed: February 18, 2011
    Date of Patent: April 7, 2015
    Assignee: LG Electronics Inc.
    Inventors: Ji Woong Jang, Han Gyu Cho, Yeong Hyeon Kwon, Hyun Woo Lee
  • Patent number: 8995329
    Abstract: A repeater apparatus for detecting a downlink HARQ ACK/NACK feedback signal from a base station is provided. An RF (Radio Frequency) unit receives specific channel configuration information which includes offset information indicating the starting point of a specific channel to which said HARQ ACK/NACK feedback signal is transmitted from the base station and the position of the specific channel allocated for an exclusive use of the repeater apparatus within the specific channel from said start point, and receives the HARQ ACK/NACK feedback signal from the base station for an uplink transmission of the repeater. The processor detects the specific channel allocated for exclusive use of the repeater apparatus based on the received specific channel configuration information thereby decoding the received HARQ ACK/NACK feedback signal.
    Type: Grant
    Filed: April 19, 2010
    Date of Patent: March 31, 2015
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Yeong Hyeon Kwon, Jae Hoon Chung, Han Gyu Cho, Sung Ho Moon
  • Patent number: 8984362
    Abstract: A method is described for transmitting signals in a mobile communication system which splits an information block into a plurality of split-information blocks and performs a hybrid automatic repeat request (HARQ) process upon each of the split-information blocks. A method is also described for reducing control information overhead by transmitting control information only through one control channel when splitting an information block and transmitting split-information blocks through a plurality of subframes or a plurality of resource blocks. The segmentation of the information block is performed in a physical layer to reduce medium access control (MAC) overhead and to simplify implementation.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: March 17, 2015
    Assignee: LG Electronics Inc.
    Inventors: Eun Jong Lee, Min Seok Oh, Hyung Ho Park, Doo Hyun Sung, Jin Soo Choi, Han Gyu Cho, Jae Hoon Chung, Jong Young Han, Sung Ho Moon, Kyu Jin Park
  • Patent number: 8976745
    Abstract: The present invention discloses a method in which a terminal transmits an acknowledgement/negative acknowledgement (ACK/NACK) signal in a wireless communication system. In detail, the comprises the steps of allocating a first control channel resource to the ACK/NACK signal and a second control channel resource to a channel quality information (CQI) signal, determining the transmission power of the first control channel resource and the transmission power of the second control channel resource in accordance with a preset priority, and transmitting the ACK/NACK signal and the CQI signal to a base station using the control channel resources and the transmission powers corresponding thereto.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: March 10, 2015
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, So Yeon Kim, Han Gyu Cho, Jae Hoon Chung, Seung Hee Han
  • Patent number: 8971947
    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: Grant
    Filed: June 15, 2010
    Date of Patent: March 3, 2015
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Han Gyu Cho, Jin Sam Kwak, Jae Hoon Chung, Sung Ho Moon
  • Patent number: 8958360
    Abstract: A method including receiving a signal from a terminal; measuring channel state information (CSI); comparing the CSI to determine whether to decode the received signal; and if it is determined to decode the received signal, removing noise by decoding the received signal, and then performing decode and forward (DAF) in which the signal is re-encoded, and if it is determined not to decode the received signal, performing amplify and forward (AAF) in which the received signal is amplified. The CSI may be at least one of a frame error rate (FER), a bit error rate (BER), a signal to noise ratio (SNR), and a signal to interference plus noise ratio (SINR). Accordingly, a time delay consumed for channel decoding in hybrid DAF coordinated communication is decreased, data transmission and resource usage is more effectively achieved in coordinated communication using multiple terminals, and unnecessary power consumption is decreased.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: February 17, 2015
    Assignee: LG Electronics Inc.
    Inventors: Ji Woong Jang, Young Soo Yuk, Han Gyu Cho
  • Patent number: 8958443
    Abstract: A method for receiving a superframe header at a mobile station in a wireless mobile communication system is disclosed. The method comprises receiving a sub-frame including the superframe header and a first data channel and decoding the received superframe header. Herein, the superframe header is located within a predetermined physical frequency band and the predetermined physical frequency band includes a synchronization channel.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: February 17, 2015
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Hee Jeong Cho, Doo Hyun Sung, Han Gyu Cho, Sung Ho Moon, Jin Sam Kwak, Bin Chul Ihm
  • Patent number: 8953536
    Abstract: A method for transmitting or receiving an uplink signal is disclosed. If a user equipment is connected to a base station in accordance with a legacy system support mode, it performs permutation for an uplink signal on a frequency axis in accordance with a first rule. If the user equipment is connected to the base station in accordance with a legacy system non-support mode, it performs permutation for the uplink signal on the frequency axis in accordance with a second rule. Cell ID corresponding to a secondary advanced preamble (SA-preamble) received from the base station is used for permutation based on the first rule and/or the second rule.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: February 10, 2015
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak
  • Patent number: 8934397
    Abstract: A method and apparatus of relaying data in a wireless communication system is provided. A relay station (RS) receives relay zone allocation information. A plurality of relay zones is allocated in a resource region by the relay zone allocation information. The relay station receives data transmitted from a super-ordinate station, detects a tunneling traffic destined to a subordinate station from the data, and transmits the tunneling traffic to the subordinate station. The tunneling traffic is transmitted over one of the plurality of relay zones.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: January 13, 2015
    Assignee: LG Electronics Inc.
    Inventors: Dong Guk Lim, Jong Young Han, Han Gyu Cho, Yeong Hyeon Kwon, Sung Ho Moon
  • Patent number: 8934447
    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: Grant
    Filed: March 4, 2011
    Date of Patent: January 13, 2015
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Han Gyu Cho
  • Patent number: 8929291
    Abstract: Disclosed are an apparatus and method for transmitting or receiving uplink power control information. According to the present invention, a transmitting antenna of a base station device transmits, to a terminal, a first message containing first information on the interference and noise levels of frequency partitions to which an uplink data channel and an uplink control channel are allocated. Here, the uplink data channel and the uplink control channel are allocated to different frequency partitions. The transmitting antenna can further transmit, to the terminal, information on frequency partitions to which the uplink data channel and the uplink control channel are allocated.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: January 6, 2015
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Han Gyu Cho, Wook Bong Lee
  • Patent number: 8930785
    Abstract: A method of transmitting a data block in a wireless communication system is provided. The method includes transmitting the data block, receiving hybrid automatic repeat request (HARQ) not-acknowledgement (NACK) for the data block, receiving an automatic repeat request (ARQ) feedback message indicating a reception state of the data block, and determining whether to retransmit the data block by using the ARQ feedback message.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: January 6, 2015
    Assignee: LG Electronics Inc.
    Inventors: Doo Hyun Sung, Eun Jong Lee, Han Gyu Cho, Jae Hoon Chung, Kyu Jin Park
  • Patent number: 8918110
    Abstract: The present invention relates to a segment identifier detection method performed by a terminal if a segment being administrated by a base station in a wireless communication system has the frequency reuse factor of 3 and 2 at the same time. In particular, the method comprises: acquiring a cell identifier and a segment identifier corresponding to the cell identifier from a secondary advanced preamble (SA-preamble) that has been received from the base station; determining a frequency reuse factor of the base station; and if the frequency reuse factor is 2 and the obtained segment identifier is a third segment identifier, transforming the segment identifier corresponding to the cell identifier into a first segment identifier or a second segment identifier.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: December 23, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak, Wook Bong Lee
  • Publication number: 20140355555
    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: August 20, 2014
    Publication date: December 4, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Seung Hee HAN, Ji Woong JANG, Jae Hoon CHUNG, Han Gyu CHO, Yeong Hyeon KWON, Seung Hyun KANG
  • Patent number: 8902935
    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: Grant
    Filed: June 21, 2010
    Date of Patent: December 2, 2014
    Assignee: LG Electronics Inc.
    Inventors: So Yeon Kim, Han Gyu Cho, Jae Hoon Chung, Sung Ho Moon, Seung Hee Han, Yeong Hyeon Kwon
  • Patent number: 8902802
    Abstract: Disclosed are a terminal device for receiving a signal in a wireless communication system for supporting a plurality of component carriers and a method thereof. In the terminal device for receiving the signal in the system for supporting the component carriers, a receiver receives a Physical Downlink Control Channel (PDCCH) including control information of a first type component carrier from a base station or a relay. A processor performs a decoding operation or controls an operation in a slip mode on the basis of control information included in a PDCCH in a second type component carrier after a time corresponding to a particular time offset value passes from a transmission time point of the PDCCH.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: December 2, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Sung Ho Moon, Jae Hoon Chung, Seung Hee Han, Yeong Hyeon Kwon, Han Gyu Cho
  • Patent number: 8902844
    Abstract: Provided are a method and device for allocating wireless resources in a wireless communication system. The wireless resource allocating method comprises allocating a machine type communication (MTC)-dedicated wireless resource and a general wireless resource, and communicating with at least one MTC device through the MTC-dedicated wireless resource. Herein, the MTC-dedicated wireless resource supports only the communication with the at least one MTC device, and the MTC-dedicated wireless resource and the general wireless resource may be different from each other.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: December 2, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Han Gyu Cho, Dong Guk Lim
  • 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: 8879449
    Abstract: A method of acquiring system information in a wireless communication system includes receiving scheduling system information including scheduling information indicating a start time of dynamic system information, monitoring the dynamic system information from a start time of the dynamic system information according to the scheduling system information, and ending the monitoring of the dynamic system information upon receiving a system information end indicator indicating an end time of the dynamic system information. Since an end time of dynamic system information is indicated, a process of acquiring system information can be further effectively performed.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: November 4, 2014
    Assignee: LG Electronics Inc.
    Inventors: Doo-Hyun Sung, Jae Hoon Chung, Kyu Jin Park, Eun Jong Lee, Han Gyu Cho