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 for transmitting a signal using a relay station in a wireless communication system
    Patent number: 8483118
    Abstract: A method of transmitting a signal using a relay station is disclosed. In a wireless communication system, the present invention includes the steps of enabling the relay station to receive the signal via a relay interval in a downlink interval using a first wireless communication scheme and a second wireless communication scheme in common from a base station and enabling the relay station to transmit the received signal to a first terminal using the first wireless communications scheme via a first downlink interval in the downlink interval or to a second terminal using the second wireless communication scheme via a second downlink interval.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: July 9, 2013
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Ji Wook Chung, Doo Hyun Sung, Han Gyu Cho, Jin Sam Kwak, Eun Jong Lee, Ae Ran Youn, Jae Hoon Chung
  • Method of allocating resource in wireless communication system
    Patent number: 8477701
    Abstract: A method of allocating resources in a wireless communication system includes allocating a plurality of physical resource blocks, each of which includes a plurality of sub-parts, to a virtual resource block, and mapping the virtual resource block to the plurality of physical resource blocks, wherein the virtual resource block is mapped to the sub-parts located in different positions in the range of each physical resource block. The number of resource elements allocated for the virtual resource block is constantly maintained.
    Type: Grant
    Filed: September 22, 2008
    Date of Patent: July 2, 2013
    Assignee: LG Electronics Inc.
    Inventors: Seung Woo Nam, Jong Min Kim, Moon Il Lee, Hyung Ho Park, Jin Soo Choi, Jae Hoon Chung, Jong Young Han, Han Gyu Cho
  • Method for partitioning cell identities according to cell type in wireless communication system and an apparatus therefor
    Patent number: 8462719
    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) includes a range information of cell identity partitions partitioned by granularity of 10 sequences per segment and a total number of the cell identity partitions is 16.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: June 11, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin-Soo Choi, Han-Gyu Cho, Jin-Sam Kwak
  • Method for allocating preamble sequence subblock for supporting irregular system bandwidth in wireless communication system and an apparatus therefor
    Patent number: 8451788
    Abstract: A method for transmitting a secondary advanced-preamble (SA-preamble) from a base station in a wireless communication system is disclosed, wherein the SA-preamble supporting an irregular system bandwidth. The method comprises allocating a plurality of sequence subblocks corresponding to a regular system bandwidth; configuring the SA-preamble by dropping one or more sequence subblock pairs among the plurality of sequence subblocks symmetrically in base of a DC component; and transmitting the SA-preamble to a mobile station, wherein a bandwidth of the SA-preamble is same as or narrower than the irregular system bandwidth.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: May 28, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak
  • Method for partitioning cell identities according to cell type in wireless communication system and an apparatus therefor
    Patent number: 8451775
    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: June 1, 2010
    Date of Patent: May 28, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak
  • Method for controlling uplink transmission power in wireless communication system and an apparatus therefor
    Patent number: 8452322
    Abstract: A method for setting uplink transmission power at a mobile station in a wireless communication system comprises the steps of: receiving information on the number of total streams received at a base station; and setting the uplink transmission power using the received number of total streams. In this case, the uplink transmission power is preferably a transmission power per stream (PTx—stream) obtained by applying the number of total streams to reference transmission power (PTx—ref).
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: May 28, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Han Gyu Cho, Jin Sam Kwak, Wook Bong Lee
  • METHOD AND APPARATUS FOR DETECTING A SEGMENT IDENTIFIER IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20130130702
    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: Application
    Filed: February 28, 2011
    Publication date: May 23, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak, Wook Bong Lee
  • Method for transmitting and receiving data in wireless communication system
    Patent number: 8446871
    Abstract: The present invention relates to a method for transmitting and receiving data in a wireless communication system. The method for transmitting data in a wireless communication system, according to one aspect of the present invention, comprises a step in which a base station transmits downlink data to a first terminal which supports a first system via a first region of a frame, and transmits downlink data to a second terminal which supports a second system via a second region which follows the first region corresponding to a frame offset on a time axis, wherein the frame offset is an offset of the start point of the frame for the first system and the start point of the frame for the second system, and the first region includes 3+6 (the frame offset-1) OFDM symbols. Each independent claim uniquely identifies the distinct claimed features.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: May 21, 2013
    Assignee: LG Electronics Inc.
    Inventors: Wook Bong Lee, Han Gyu Cho, Sung Ho Moon, Jin Sam Kwak, Bin Chul Ihm, Min Seok Noh
  • METHOD AND APPARATUS FOR PERFORMING CLIENT COOPERATION TRANSMISSION THROUGH A GROUP RESOURCE ALLOCATION SCHEME IN A WIRELESS ACCESS SYSTEM
    Publication number: 20130107848
    Abstract: The present description relates to a method for performing client cooperation transmission through a group resource allocation (GRA) scheme in a wireless access system, comprising the following steps: receiving a group configuration message, including client group information, from a base station, wherein said group configuration message further includes client cooperation-enabled information that indicates whether or not the client group is concerned with the client cooperation transmission; determining whether or not to participate in the client cooperation by means of the client cooperation-enabled information; and transmitting the result of the determination on whether or not to participate in the client cooperation to the base station.
    Type: Application
    Filed: June 29, 2011
    Publication date: May 2, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Seunghyun Kang, Dong-Guk Lim, Han-Gyu Cho, Kyujin Park
  • Method and apparatus for mapping resource unit in wireless communication system
    Patent number: 8432860
    Abstract: A method and an apparatus for mapping a resource unit in a wireless communication system is provided. The method includes obtaining LCRU,FPi indicating the number of contiguous resource units (CRUs) of an ith frequency partition (FPi) and LDRU,FPi indicating the number of distributed resource units (DRUs) of the FPi and mapping physical resource units (PRU) of the FPi to CRUs of the FPi by the LCRU,FPi and after allocating the PRUFPi to the CRU, maps the remaining part of the PRUFPi to DRUs of the FPi. A frequency selective scheduling gain and a frequency diversity gain can be obtained.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: April 30, 2013
    Assignee: LG Electronics Inc.
    Inventors: Han Gyu Cho, Jinsoo Choi, Jin Sam Kwak, Seung Hyun Kang, Sung Ho Moon
  • Method of designing a multiplexing structure for resource allocation to support legacy system
    Patent number: 8427998
    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 OFDMA symbols, 18 sub-carriers by 6 OFDMA symbols, or 20 sub-carriers by 6 OFDMA symbols when FDM is used.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: April 23, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jong Young Han, Jae Hoon Chung
  • COMMUNICATION METHOD AND COMMUNICATION APPARATUS FOR MTC IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20130077594
    Abstract: The present invention relates to a communication method for machine type communication (MTC) in a wireless communication system. An MTC device transmits subscription information for indicating MTC subscribers to a base station, and receives a group identifier for indicating an MTC group to which the MTC device belongs, from the base station. The MTC device receives, from the base station, resource allocation information on a control channel based on the group identifier.
    Type: Application
    Filed: June 9, 2011
    Publication date: March 28, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyu Jin Park, Seung Hyun Kang, Han Gyu Cho
  • Method and apparatus for transmitting pilot in a wireless communication system
    Patent number: 8406185
    Abstract: An apparatus for transmitting a pilot and method thereof are disclosed, by which a pilot can be efficiently transmitted in a wireless communication system. The present invention, in which the resource unit is transmitted by a base station in a wireless communication system, includes forming the resource unit including a plurality of pilot resource elements (REs) and a plurality of data resource elements, allocating a plurality of pilot pairs to have a prescribed subcarrier interval and a prescribed OFDM (orthogonal frequency division multiplexing) symbol interval within the resource unit, and transmitting the resource unit to a user equipment via multi-antenna, wherein each of a plurality of the pilot pairs includes individual pilots for two different streams or antennas.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: March 26, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Han Gyu Cho, Wook Bong Lee, Jin Soo Choi
  • Method of reporting channel state
    Patent number: 8400928
    Abstract: A method of reporting a channel state for a plurality of bands includes transmitting channel quality indicators (CQIs) for the respective bands, and transmitting CQI variation information, wherein the CQI variation information comprises CQI up/down information indicating whether the CQIs of the respective bands collectively increase or decrease and a CQI variation indicating a collective variation of the CQIs of the respective bands. Accordingly, waste of resources consumed for the CQIs can be reduced.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: March 19, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Jin Young Chun, Ae Ran Youn, Jae Hoon Chung, Eunjong Lee, Han Gyu Cho, Jong Young Han, Wookbong Lee, Hyung Ho Park
  • Method for transceiving a signal in wireless communication system
    Patent number: 8400952
    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 7 MHz.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: March 19, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Guk Lim, Sung Ho Moon, Han Gyu Cho, Yeong Hyeon Kwon, Jin Sam Kwak
  • APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING UPLINK POWER CONTROL INFORMATION
    Publication number: 20130064199
    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: Application
    Filed: March 21, 2011
    Publication date: March 14, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Dong Cheol Kim, Han Gyu Cho, Wook Bong Lee
  • Method for determining cell identity in wireless communication system and apparatus therefor
    Patent number: 8396034
    Abstract: A method of determining a cell identity in a wireless communication system is disclosed. The present invention includes the steps of obtaining a segment ID and a sequence index from an SA-preamble (secondary advanced preamble) sequence received from a base station and determining the cell identity using the segment ID and the sequence index. In this case, the cell identity corresponds to one SA-preamble sequence and a cell identity adjacent to the cell identity corresponds to an SA-preamble sequence having a complex conjugate relation of the one SA-preamble sequence.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: March 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Soo Choi, Han Gyu Cho, Jin Sam Kwak
  • Method for transmitting VoIP packet
    Patent number: 8396070
    Abstract: A method for transmitting a voice over Internet protocol (VoIP) packet includes allocating a radio resource for VoIP packet transmission to a user, transitioning a VoIP service from a talk period, in which the VoIP packet is transmitted using the radio resource, to a silence period in which the VoIP packet is not transmitted, releasing the radio resource during the silence period, and transitioning the VoIP service to the talk period by reallocating the radio resource. Limited radio resources can be further effectively used.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: March 12, 2013
    Assignee: LG Electronics Inc.
    Inventors: Doo Hyun Sung, Hyung Ho Park, Jae Hoon Chung, Kyu Jin Park, Eun Jong Lee, Han Gyu Cho, Jin Soo Choi, Jong Young Han
  • Method for transmitting VoIP packet
    Patent number: 8391311
    Abstract: A method for transmitting a voice over Internet protocol (VoIP) packet includes allocating a radio resource for VoIP packet transmission to a user, transitioning a VoIP service from a talk period, in which the VoIP packet is transmitted using the radio resource, to a silence period in which the VoIP packet is not transmitted, releasing the radio resource during the silence period, and transitioning the VoIP service to the talk period by reallocating the radio resource. Limited radio resources can be further effectively used.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: March 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Doo Hyun Sung, Hyung Ho Park, Jae Hoon Chung, Kyu Jin Park, Eun Jong Lee, Han Gyu Cho, Jin Soo Choi, Jong Young Han
  • Method and apparatus for generating ranging preamble code in wireless communication system
    Patent number: 8391382
    Abstract: A method and apparatus of generating a ranging preamble code in a wireless communication system is provided. A mobile station (MS) receives ranging channel information, and generates the ranging preamble code by selecting one of a plurality of candidate ranging preamble codes based on the ranging channel information. The plurality of candidate ranging preamble codes are based on a Zadoff-Chu (ZC) sequence of which a length is NRP and a root index is rp, and The ranging channel information comprises at least one of a start root index r0 among root indices of the plurality of candidate ranging preamble codes and a control parameter y indicating the start root index.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: March 5, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Yeong Hyeon Kwon, Han Gyu Cho, Jin Sam Kwak, Seung Hee Han