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).

  • Publication number: 20130272174
    Abstract: Disclosed are a method and a device for transmitting uplink (UL) data in a wireless communication system. A cooperative device receives said UL data from a source device through a listening interval which is set within a TDD frame of said cooperative device, and transmits said UL data received from said source device to a base station through a UL subframe within the TDD frame of said cooperative device. At this time, said listening interval is overlapped with the UL subframe within the TDD frame of said source device.
    Type: Application
    Filed: December 19, 2011
    Publication date: October 17, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyu Jin Park, Han Gyu Cho, Jin Sam Kwak
  • Patent number: 8559467
    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: June 22, 2009
    Date of Patent: October 15, 2013
    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: 8553593
    Abstract: A method for performing communication using a frame structure that supports a half-frequency division duplex (H-FDD) operation and a device using the same are disclosed. A base station performs resource allocation scheduling to support H-FDD user equipment operation in a mobile communication system. For example, the base station allocates first, second and last uplink subframes for idle subframes within a specific frame or punctures them, so that the H-FDD user equipment does not use the uplink subframes. The base station transmits the scheduled resource allocation information to the user equipment through a superframe header, a preamble and a MAP. The user equipment which has received the scheduled resource allocation information (subframe index and location that can be used by the user equipment) transmits and receives a signal based on the resource allocation information.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: October 8, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Guk Lim, Sung Ho Moon, Han Gyu Cho, Yeong Hyeon Kwon, Jin Sam Kwak
  • Patent number: 8553719
    Abstract: A method and MS apparatus for receiving a signal in a wireless communication system supporting a plurality of wireless communication schemes are disclosed. The method for receiving a signal in a wireless communication system supporting both communication of a first MS using a first wireless communication scheme and communication of a second MS using a second wireless communication scheme includes receiving from a BS a downlink signal in a downlink subframe allocated to a second zone dedicated to communication of the second MS in a downlink zone of a specific frame by the second MS. The number of downlink subframes allocated to the second zone by the BS is one, the allocated downlink subframe is a first downlink subframe of the second zone, and the first downlink subframe of the second zone is a Type-2 subframe which consists of seven OFDMA symbols.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 8, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Guk Lim, Han Gyu Cho, Jin Young Chun, Jin Sam Kwak
  • Patent number: 8553525
    Abstract: A method of transmitting data is provided. The method includes generating a frame, the frame comprising a data burst, a submap and a map wherein the submap indicates a resource allocation state of the data burst, and the map indicates a differential adaptive modulation and coding (AMC) level for the submap, and transmitting data using the frame, wherein the differential AMC level is information on change in an AMC level applied to the submap comparing with other submap in a different frame. High-speed data transmission is realized and limited radio resources can be more efficiently used.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: October 8, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Seung Woo Nam, Jong Min Kim, Jong Young Han, Han Gyu Cho, Jae Hoon Chung, Hyung Ho Park
  • Patent number: 8547895
    Abstract: A method of a Relay Station (RS) transmitting and receiving a signal in a wireless communication system including the RS, comprising receiving frame configuration information about an RS frame from a Base Station (BS), configuring a downlink (DL) access zone in which a signal is transmitted to a relay Mobile Station (MS) connected to the RS and a DL relay zone in which a signal is received from the BS in the RS frame on the basis of the frame configuration information, comparing a time necessary to switch an operation from the DL access zone to the DL relay zone and a propagation delay time taken to receive the signal from the BS, configuring some symbols of the DL access zone or the DL relay zone as a transition time according to a result of the comparison, transmitting the signal to the relay MS in the DL access zone, and receiving the signal from the BS in the DL relay zone.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: October 1, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Young Chun, Dong Guk Lim, Han Gyu Cho, Jin Sam Kwak
  • Patent number: 8547896
    Abstract: Disclosed is a method in which a relay node transmits/receives signals via a specific downlink subframe and a specific uplink subframe. The relay node may consider the propagation delay in accordance with the distance between a base station and the relay node to set a subframe timing for transmitting/receiving signals to/from the base station. The relay node may further consider the delay time of 0.5 symbol, 1 symbol or the like in addition to said propagation delay in the event of setting a downlink receiving timing. Setting an uplink subframe timing of the relay node can be divided into the event the timing is set on the basis of a backhaul link and the event the timing is set on the basis of an access link. In the event the timing is set on the basis of the access link, the propagation delay can be double that of the event the timing is set on the basis of the backhaul link, which should be considered in setting the timing.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: October 1, 2013
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Jae Hoon Chung, Han Gyu Cho, Yeong Hyeon Kwon, Min Seok Noh, Moon Il Lee, Sung Ho Moon
  • Patent number: 8542570
    Abstract: A method and apparatus for transceiving signals using a predetermined frame structure in a wireless communication system is provided. The apparatus includes a Radio Frequency (RF) unit for transceiving a signal through a frame according to the predetermined frame structure. The frame includes 5 subframes, the 5 subframe comprise type-1 subframes including 6 Orthogonal Frequency Division Multiplex Access (OFDMA) symbols and type-2 subframes including 7 OFDMA symbols, and a Cyclic Prefix (CP) length of the frame corresponds to ? of an effective symbol length.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: September 24, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Guk Lim, Han Gyu Cho, Sung Ho Moon, Jin Sam Kwak
  • Publication number: 20130244651
    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: Application
    Filed: May 2, 2013
    Publication date: September 19, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Jin Soo CHOI, Han Gyu CHO, Jin Sam KWAK
  • Patent number: 8520618
    Abstract: A method of downlink subchannelization in a wireless communication system includes: transmitting a network entry and network discovery information including an open loop (OL) region parameter; and mapping a physical resource unit (PRU) to a contiguous resource unit (CRU) or a distributed resource unit (DRU) with respect to ith frequency partition based on the OL region parameter, wherein a permutation sequence used for mapping a PRU of the ith frequency partition (PRUFPi) to a CRU of the ith frequency partition (CRUFPi) or a DRU of the ith frequency partition (DRUFPi) is determined by a seed value, and the seed value is set to be a particular value according to the value of the OL region parameter.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: August 27, 2013
    Assignee: LG Electronics Inc.
    Inventors: Wook Bong Lee, Jin Young Chun, Han Gyu Cho, Jin Soo Choi, Bin Chul Ihm
  • Patent number: 8514830
    Abstract: A method of transmitting a signal using a prescribed frame structure in a wireless communication system is disclosed. A mobile station is able to transmit or receive a signal using a frame structure with a CP length corresponding to ¼ of a useful symbol. Moreover, the mobile station is able to transmit or receive a signal using a frame structure with a CP length corresponding to ¼ of a useful symbol, which is designed to mutually coexist without causing collision or interference with another frame structure with a different CP length. In this case, a channel bandwidth of the prescribed frame structure is 8.75 MHz.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: August 20, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Guk Lim, Sung Ho Moon, Han Gyu Cho, Yeong Hyeon Kwon, Jin Sam Kwak
  • Patent number: 8509138
    Abstract: New multiplexing UL structures for supporting legacy system are provided. A 16m system of diversity mode can be multiplexed with 16e system in PUSC mode in FDM manner with the same tiles/permutation rules. A 16m system can be multiplexed with 16e system in AMC mode in FDM and/or TDM manner. The time length of multiplexed 16e PUSC packets and/or 16m packets can be extended to more than two sub-frames for UL coverage. A PRU for 16m system may consists of 16 sub-carriers by 6 OFDM symbols, 18 sub-carriers by 6 OFDM symbols, or 20 sub-carriers by 6 OFDM symbols.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: August 13, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jong Young Han, Jae Hoon Chung
  • Patent number: 8509053
    Abstract: A method for multiplexing one or more multiple access regions is disclosed. The method for multiplexing one or more multiple access regions in a wireless access system comprises multiplexing the one or more multiple access regions so that a first base station and a second base station among a plurality of base stations which use one or more multiple access schemes together under a multi-cell environment use a single multiple access scheme in a predetermined resource region allocated to each of the first base station and the second base station; and transmitting multiplexing information obtained from the multiplexing the one or more multiple access regions to a mobile station included in a cell region of the plurality of base stations. As a user uses SC-FDMA scheme and OFDMA scheme together, it is possible to obtain a single carrier effect of the SC-FDMA system and flexibility of the OFDMA system on a time axis and a frequency axis.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: August 13, 2013
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Ki Ho Nam, Seung Hee Han, Han Gyu Cho, Hyun Woo Lee, Dong Cheol Kim, Sung Ho Moon, Jin Sam Kwak, Sung Gu Cho, Yeong Hyeon Kwon
  • Patent number: 8509110
    Abstract: Provided are a cell searching method and an apparatus in a multi-carrier system. A terminal acquires a first physical cell identity (PCI) for a first downlink component carrier, and acquires an expanded PCI for a second downlink component carrier. A first downlink reference signal through the first downlink element carrier is transmitted on the basis of the PCI, and a second downlink reference signal through the second downlink component carrier is transmitted on the basis of the expanded PCI.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: August 13, 2013
    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: 8509176
    Abstract: A method of transmitting and receiving data in a wireless communication system is disclosed. In the method of transmitting the data in the wireless communication system, a base station transmits downlink data to a first terminal supporting a first system through a first zone of a frame, and transmits downlink data to a second terminal supporting a second system through a second zone located at a location separated from the first zone backwardly by a frame offset on a time axis. The wireless communication system may support a bandwidth of 8.75 MHz, the frame offset is an offset between a start point of a frame for the first system and a start point of a frame for the second system, and the first zone includes 3+6*(frame offset?1) Orthogonal Frequency Division Multiplexing (OFDM) symbols.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: August 13, 2013
    Assignee: LG Electronics Inc.
    Inventors: Wook Bong Lee, Han Gyu Cho, Sung Ho Moon, Jin Sam Kwak, Bin Chul Ihm, Min Seok Noh
  • Patent number: 8509124
    Abstract: A method of transmitting a signal using a prescribed frame structure in a wireless communication system is disclosed. A mobile station can transmit or receive a signal using a frame structure with a CP length corresponding to ¼ of a useful symbol. Moreover, the mobile station can transmit or receive a signal using a frame structure with a CP length corresponding to ¼ of a useful symbol.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: August 13, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Guk Lim, Sung Ho Moon, Han Gyu Cho, Yeong Hyeon Kwon, Jin Sam Kwak
  • Patent number: 8498239
    Abstract: The present application discloses a method for mapping a subband/miniband in a wireless communication system. Particularly, the method comprises the steps of: dividing a system frequency band into a plurality of physical resource units (PRU); mapping the plurality of physical resource units to physical resource units of a subband (PRUSB) in accordance with a 1st rule; and mapping the plurality of physical resource units to physical resource units of a miniband (PRUMB) in accordance with a 2nd rule, wherein said 1st rule and said 2nd rule contain factors for limiting the minimum value of the gap between subbands allocated to the system frequency band.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: July 30, 2013
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Seung Hyun Kang, Jin Sam Kwak
  • Publication number: 20130176995
    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: Application
    Filed: July 5, 2011
    Publication date: July 11, 2013
    Applicant: LG Electronics Inc.
    Inventors: Kyu Jin Park, Han Gyu Cho, Dong Guk Lim
  • Patent number: 8483137
    Abstract: A method for transmitting a signal using a frame having a predetermined cyclic prefix (CP) in a wireless communication system is disclosed. The method for transmitting a signal using a frame having a predetermined cyclic prefix (CP) length in a wireless communication system that supports a plurality of cells comprises receiving the signal using a first frame from a base station; and transmitting the signal to the base station using the first frame, wherein the first frame is supported by a first cell of the plurality of cells and is different from a second frame supported by a second cell of the plurality of cells, the first frame has a structure where a overlap region between an uplink region of the first frame and a downlink region of the second frame or an overlap region between a downlink region of the first frame and an uplink region of the second frame is punctured, and a CP length of the first frame is different from that of the second frame.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: July 9, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Guk Lim, Han Gyu Cho, Sung Ho Moon, Jin Sam Kwak
  • Patent number: 8483742
    Abstract: A method and apparatus for controlling uplink power in a wireless communication system are disclosed. The uplink power controlling method includes receiving target Signal-to-Interference plus Noise Ratio (SINR) parameters and an uplink noise and interference level from a base station, determining an uplink power based on a target SINR and an estimated average power level of noise and interference of a user equipment, the target SINR being determined using the target SINR parameters and the estimated average power level of noise and interference of the user equipment being calculated using the uplink noise and interference level, and receiving at least one of selectively transmitted first and second offsets from the base station and adjusting the uplink power based on the received at least one of the first and second offsets.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: July 9, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Wook Bong Lee, Han Gyu Cho, Jin Sam Kwak, Bin Chul Ihm