Patents by Inventor Kyu Jin Park

Kyu Jin Park 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: 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: 20140092836
    Abstract: The present disclosure is related to adjusting a blind decoding of a downlink control channel in a base station. A method of adjusting a blind decoding of a downlink control channel may include creating an enhanced physical downlink control channel (EPDCCH) using the number of EPDCCH candidates per aggregation level (AL) in each of one or more EPDCCH sets for user equipment; and transmitting the created EPDCCH to the user equipment. Herein, the number of EPDCCH candidates is determined based on at least one of (i) a resource size associated with configuration of each EPDCCH set and (ii) the total number of EPDCCH sets.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 3, 2014
    Applicant: KT Corporation
    Inventors: Kyu Jin PARK, Seung Hyun KANG, Woo-Jin CHOI
  • Publication number: 20140078983
    Abstract: The disclosure is related to transmitting control information in a transmission/reception point and to receiving the control information in user equipment. Particularly, the present disclosure relates to transmitting the control information for user equipment which receives downlink control information through a downlink control channel newly defined in a data region. Furthermore, the present disclosure relates to performing a resource mapping for enhanced control channel elements (ECCEs) of an enhanced physical downlink control channel (EPDCCH).
    Type: Application
    Filed: September 11, 2013
    Publication date: March 20, 2014
    Applicant: KT CORPORATION
    Inventors: Kyu Jin PARK, Woo-Jin CHOI
  • Publication number: 20140078987
    Abstract: The disclosure is related to transmitting control information in a transmission/reception point and to receiving the control information in user equipment. Particularly, the present disclosure relates to transmitting the control information for user equipment which receives downlink control information through a downlink control channel newly defined in a data region. Furthermore, the present disclosure relates to performing a resource mapping for enhanced control channel elements (ECCEs) of an enhanced physical downlink control channel (EPDCCH).
    Type: Application
    Filed: September 16, 2013
    Publication date: March 20, 2014
    Applicant: KT CORPORATION
    Inventors: Kyu Jin PARK, Woo-Jin CHOI
  • Publication number: 20140071918
    Abstract: The disclosure is related to reception and configuration of a downlink control channel. Particularly, the present disclosure relates to a method and an apparatus (e.g., user equipment) for receiving a downlink control channel located in a data region, and a method and an apparatus (e.g., a transmission/reception point) for configuring and transmitting the downlink control channel.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 13, 2014
    Applicant: KT CORPORATION
    Inventors: Kyu Jin PARK, Woo-Jin CHOI
  • Publication number: 20140064226
    Abstract: A method of transmitting subframe designating information in downlink in a wireless communication system is disclosed. The present invention includes generating the subframe designating information for designating a subframe of a specific type in a radio frame and transmitting the generated subframe designating information to a user equipment, wherein the subframe designating information includes initial location information indicating an initial location of the subframe of the specific type on the radio frame and period information indicating a period for the subframe of the specific type to be repeated.
    Type: Application
    Filed: November 8, 2013
    Publication date: March 6, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Yeong Hyeon KWON, Min Seok NOH, Kyu Jin PARK, Jae Hoon CHUNG, Seung Hee HAN
  • Patent number: 8660064
    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 comprise 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: Grant
    Filed: June 3, 2009
    Date of Patent: February 25, 2014
    Assignee: 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
  • Publication number: 20140036803
    Abstract: The disclosure is related to transmitting downlink control information through a downlink control channel adopted in a data region, and transmitting uplink control information for user equipment receiving the downlink control information. Furthermore, the disclosure is related to performing a physical uplink control channel (PUCCH) resource mapping for uplink HARQ-ACK/NACK feedback of user equipment. Herein, the uplink HARQ-ACK/NACK feedback may be performed by the user equipment in response to a downlink data channel assigned according to downlink scheduling information transmitted through the adopted downlink control channel.
    Type: Application
    Filed: July 19, 2013
    Publication date: February 6, 2014
    Applicant: KT CORPORATION
    Inventor: Kyu Jin PARK
  • Patent number: 8644210
    Abstract: The present invention relates to a method and an apparatus of transmitting and receiving backhaul downlink control information in a wireless communication system. In the method for transmitting backhaul downlink control information from a base station in a wireless communication system according to one aspect of the present invention, the base station transmits resource allocation information to at least one terminal and at least one relay node via a relay-physical downlink control channel (hereinafter referred to as “R-PDCCH”); transmits backhaul system information to the at least one relay node and the at least one terminal via a relay physical downlink shared channel (hereinafter referred to as “R-PDSCH”) which is determined according to the resource allocation information; and changes a backhaul downlink resource block according to the backhaul system information.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: February 4, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jae Hoon Chung, Kyu Jin Park, Sung Ho Moon, Yeong Hyeon Kwon
  • Patent number: 8638777
    Abstract: A method for performing ranging is disclosed. The method for performing ranging in a wireless communication system which simultaneously supports a legacy system and a new system includes a method for additionally allocating a ranging channel to a zone other than a legacy zone and a method for re-using a legacy ranging channel within the legacy zone. When the legacy ranging channel is re-used, ranging codes may be shared by a legacy mobile station and a new system mobile station or may be separated on a ranging code domain. Limited radio resources can be effectively employed by re-using the legacy ranging channel.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: January 28, 2014
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Jae Hoon Chung, Han Gyu Cho, Eun Jong Lee, Doo Hyun Sung
  • Patent number: 8614697
    Abstract: A display apparatus includes a timing controller which outputs image data, a data control signal and a first gate control signal, a data driving circuit which receives the image data and converts the image data into data voltages, a control signal converting circuit which delays the first gate control signal by a reference time period to convert the first gate control signal into a second gate control signal based on a reference signal, a gate driving circuit which outputs gate signals based on the second gate control signal, and a display panel which displays an image corresponding to the one line of the data voltages based on the gate signals. Each gate signal rises at a point in time delayed from a starting point of a corresponding horizontal scanning period by the reference time period and falls before an ending point of the corresponding horizontal scanning period.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: December 24, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoung-Hak Kim, Sang-Hoon Park, Kyu-Jin Park, Kyu-Hun Lim, Sun-Mi Son
  • Publication number: 20130336197
    Abstract: According to one embodiment, a method of allocating a radio resource for a relay station includes: transmitting configuration information through a higher layer signal, the configuration information including information regarding an OFDM symbol at which a relay zone begins; allocating the relay zone to the relay station in a subframe based on the configuration information; and transmitting a relay control channel to the relay station in the relay zone. The subframe includes OFDM symbols in a time domain and subcarriers in a frequency domain. The relay zone includes a subset of the OFDM symbols in the time domain and a portion of the subcarriers in the frequency domain. The configuration information indicates an OFDM symbol from among a second OFDM symbol, a third OFDM symbol and a fourth OFDM symbol. The relay control channel is transmitted from the fourth OFDM symbol of the subframe.
    Type: Application
    Filed: June 24, 2013
    Publication date: December 19, 2013
    Inventors: Kyu Jin PARK, Sung Ho MOON, So Yeon KIM, Jae Hoon CHUNG, Min Seok NOH, Yeong Hyeon KWON, Hyun Soo KO, Seung Hee HAN, Moon Il LEE
  • Patent number: 8605632
    Abstract: A method of transmitting subframe designating information in downlink in a wireless communication system is disclosed. The present invention includes generating the subframe designating information for designating a subframe of a specific type in a radio frame and transmitting the generated subframe designating information to a user equipment, wherein the subframe designating information includes initial location information indicating an initial location of the subframe of the specific type on the radio frame and period information indicating a period for the subframe of the specific type to be repeated.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: December 10, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Min Seok Noh, Kyu Jin Park, Jae Hoon Chung, Seung Hee Han
  • Patent number: 8599782
    Abstract: There is provided a method for allocating subframes in a radio communications system that performs communication by using a radio frame including a plurality of subframes, the method including: selecting a backhaul downlink subframe in which a base station is to transmit a signal to a relay station; and allocating the backhaul downlink subframe to a substitution subframe which is not limitation subframes, when the selected backhaul downlink subframe corresponds to one of the limitation subframes, wherein the limitation subframes are subframes in which the relay station is to transmit essential information to a relay user equipment. Therefore, it is possible to overcome a limitation that is present in a link between the base station and the relay station, perform an HARQ operation, and improve the efficiency of radio resource allocation.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: December 3, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jae Hoon Chung, So Yeon Kim, Moon Il Lee, Kyu Jin Park, Hyun Soo Ko, Seung Hee Han, Yeong Hyeon Kwon
  • Patent number: 8588155
    Abstract: A method of transmitting broadcasting information or system information to user equipments in an idle mode or a sleep mode in a radio access system is disclosed. The method of transmitting broadcasting information to a user equipment in an idle mode includes receiving information related to the idle mode, decoding a control channel assigned to a first paging subframe according to the information related to the idle mode, and receiving the broadcasting information via a second paging subframe indicated by the control channel regardless of the information related to the idle mode, if the decoding of the control channel is successful.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: November 19, 2013
    Assignee: LG Electronics Inc.
    Inventors: Eun Jong Lee, Doo Hyun Sung, Jae Hoon Chung, Han Gyu Cho, Kyu Jin Park
  • Publication number: 20130286918
    Abstract: Provided are a method and a device for transmitting a downlink control signal in a wireless communication system. A base station sets a transmission/reception (Tx/Rx) period (TSPS) on the basis of the type of a machine to machine (M2M) application, transmits said set Tx/Rx period to an M2M device, and performs a permanent scheduling for said M2M device on the basis of said set Tx/Rx period. Alternatively, the base station transmits a first downlink control signal that is allocated for an M2M group, which includes a plurality of M2M devices, to an M2M device that is included in said M2M group, and transmits, to said M2M device, a second downlink control signal that is specific to and allocated to said M2M device.
    Type: Application
    Filed: December 1, 2011
    Publication date: October 31, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyu Jin Park, Han Gyu Cho, Seung Hyun Kang
  • 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: 8559354
    Abstract: A method and apparatus of transmitting data in a Multimedia Broadcast multicast service Single Frequency Network (MBSFN) subframe in a wireless communication system is provided. A base station (BS) transmits a physical downlink control channel (PDCCH) to a user equipment in a first orthogonal frequency division multiplexing (OFDM) symbol, transmits reference signals for a plurality of extended antenna ports to the user equipment in a second OFDM symbol by mapping the reference signals to subcarriers, and transmits a physical downlink shared channel (PDSCH) to the user equipment in the second OFDM symbol by mapping the PDSCH to the remaining subcarriers other than the subcarriers to which the reference signals are mapped.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: October 15, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Kyu Jin Park, Jae Hoon Chung, Min Seok Noh
  • 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: 8548376
    Abstract: A method of operating a relay station is provided. The method includes: receiving a beacon signal transmitted by a user equipment; measuring the beacon signal and transmitting a measurement result to a base station; and receiving routing information for the user equipment determined based on the measurement result, wherein the routing information indicates whether the user equipment communicates with the base station via the relay station or communicates with the base station directly. Accordingly, data can be transmitted through a proper path according to a channel state between the user equipment and the base station or the relay station in a wireless communication system employing the relay station, and thus cooperative transmission can be easily achieved between the base station and the relay station, which results in increase of efficiency of using radio resources.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: October 1, 2013
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Jae Hoon Chung