Patents by Inventor Jin-sook Ryu

Jin-sook Ryu 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: 9131406
    Abstract: A method and apparatus for avoiding a short stay problem in a wireless communication system is provided. An eNodeB (eNB) may determine a ratio of a number of short stay user equipments (UEs), which stay at a cell shorter than specific threshold time, to total number of UEs staying at the cell, and transmit the ratio of the number of short stay UEs to the total number of UEs to a previous eNB. Or, the eNB may receive measurement information of at least one second cell from a UE, determine whether the UE can be connected to the at least one second cell, and notify a second eNB whether the UE can be connected to the at least one second cell or not.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: September 8, 2015
    Assignee: LG Electronics Inc.
    Inventors: Kyung Min Park, Jin Sook Ryu, Jian Xu
  • Patent number: 9131424
    Abstract: A method and apparatus for releasing a user equipment (DUE) context in a wireless communication system is provided. A home evolved NodeB (HeNB) gateway (GW)/X2-proxy receives a UE context release message, forwards the UE context release message to a source eNB; and releasing the UE context of the corresponding UE. The source eNB and the target eNB may be connected through an indirect X2 interface. Or, a home evolved NodeB (HeNB) gateway (GW)/X2-proxy receives a UE context release request message from a source eNB, and releases the UE context of the corresponding UE based on the UE context release request message. The source eNB and the target eNB may be connected through a direct X2 interface.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: September 8, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Jian Xu, Gene Beck Hahn, Kyung Min Park, Jin Sook Ryu, Sung Hoon Jung
  • Patent number: 9125213
    Abstract: A method and apparatus for verifying a release of a local IP access (LIPA) packet data network (PDN) connection in a wireless communication system is provided. A mobility management entity (MME) receives a handover preparation message from a source home eNodeB (HeNB), verifying whether the LIPA PDN connection has been released or not on receiving the handover preparation message. If the LIPA PDN connection has been released already, the MME performs a normal handover procedure. If the LIPA PDN connection has not been released, the MME transmits a handover preparation failure message to the source HeNB.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: September 1, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Jian Xu, Jin Sook Ryu, Kyung Min Park, Gene Beck Hahn
  • Patent number: 9078181
    Abstract: A method and apparatus of transmitting a measurement report message in a wireless communication system is provided. A mobile station searches for at least one closed subcarrier group (CSG) cell included in a whitelist of the mobile station, and transmits to a GSM/EDGE radio access network (GERAN) cell the measurement report message including a toggling discriminator, which indicates an optimal CSG cell that satisfies a reporting criterion among the at least one found CSG cell, and a physical cell identify (PCI) and frequency of the optimal CSG cell.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: July 7, 2015
    Assignee: LG Electronics Inc.
    Inventor: Jin Sook Ryu
  • Publication number: 20150045548
    Abstract: The present invention relates to a method for labelling fluorine-18, which is a radioisotope, and more specifically, to a method for labelling a [18F]fluoride in a method for preparing an organic [18F]fluoro compound by reacting an alkyl halide or an alkyl sulfonate with a [18F]fluoride, wherein a [18F]fluoride supported on a quaternary alkyl ammonium polymer support is eluted using a solution containing a metal salt or a quaternary ammonium salt with an adjusted pH, and a base is not additionally used. The present invention enables a labeling reaction without an additional base after precisely reflecting the concentration of a base absolutely necessary for the nucleophilic substitution of a [18F]fluoride or eluting a [18F]fluoride using a [18F]fluoride eluent with an adjusted pH, thereby stably obtaining a [18F]fluoride-labelled compound in a high yield, and is thus useful for production of fluorine-18-labelled radioactive medical supplies.
    Type: Application
    Filed: December 21, 2012
    Publication date: February 12, 2015
    Inventors: Sang Ju Lee, Seung Jun Oh, Dae Hyuk Moon, Jin Sook Ryu, Jae Seung Kim, Jong Jin Lee
  • Publication number: 20140378136
    Abstract: A method and apparatus for transmitting a handover report message in a wireless communication system is provided. A first eNodeB (eNB) serves a first cell which is a coverage hole compensating cell between a source cell and a second cell, and a user equipment (UE) is moving from the source cell to the second cell through the first cell. The first eNB performs a handover procedure for a user equipment (UE) with a source eNB serving the source cell, receives a radio link failure (RLF) indication message from a second eNB serving the second cell, and transmits a handover report message to the source eNB, the handover report message including an indicator which informs the radio link failure.
    Type: Application
    Filed: January 29, 2013
    Publication date: December 25, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyung Min Park, Dae Wook Byun, Jin Sook Ryu, Jian Xu
  • Publication number: 20140376363
    Abstract: A method and apparatus for transmitting a handover report message in a wireless communication system is provided. In a heterogeneous network (HetNet) intra long term evolution (LTE) failure case, an eNodeB (eNB) performs a handover procedure for a user equipment (UE) with a source eNB, and receives a radio link failure (RLF) indication message. The eNB transmits a handover report message to the source eNB, the handover report message including UE history information element (IE) of the UE.
    Type: Application
    Filed: January 28, 2013
    Publication date: December 25, 2014
    Applicant: LG Electronics Inc.
    Inventors: Kyung Min Park, Dae Wook Byun, Jin Sook Ryu, Jian Xu
  • Publication number: 20140370900
    Abstract: A method and apparatus for indicating a handover in a wireless communication system is provided. A mobile relay node (RN) receives an indication which indicates that there is no eNB supporting relay within neighbor cells from a donor eNodeB (cNB) serving the mobile relay node, and transmits a handover command message to user equipments (UEs).
    Type: Application
    Filed: January 4, 2013
    Publication date: December 18, 2014
    Inventors: Dae Wook Byun, Kyung Min Park, Jin Sook Ryu, Jian Xu
  • Patent number: 8913547
    Abstract: Disclosed is a method for pairing terminals using a dummy terminal, the method including selecting at least one terminal from several, pairing a channel being used by the at least one terminal with data of a dummy terminal, receiving a measurement report message from the at least one terminal, adjusting power of the at least one terminal based upon the measurement report message, and pairing the at least one terminal with another terminal so as to use a channel being used by the at least one terminal together with the another terminal if the at least one terminal is suitable for pairing.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: December 16, 2014
    Assignee: LG Electronics Inc.
    Inventors: Ji-Woong Lee, Jin-Sook Ryu, Yung-Mi Kim
  • Publication number: 20140293964
    Abstract: A method and apparatus for releasing delay tolerant access user equipments (UEs) in a wireless communication system is provided. An eNodeB (eNB) receives an overload message or a user equipment (UE) context release command message including a request for releasing the delay tolerant access UEs from a mobility management entity (MME), releases the delay tolerant access UEs based on the overload message or the UE context release command message.
    Type: Application
    Filed: November 1, 2012
    Publication date: October 2, 2014
    Applicant: LG Electronics, Inc.
    Inventors: Kyung Min Park, Jin Sook Ryu, Jian Xu, Young Dae Lee, Sung Hoon Jung
  • Patent number: 8849583
    Abstract: The present disclosure relates to an apparatus and a method for analyzing side chains of a polymer. More specifically, the present disclosure relates to an apparatus and a method for analyzing the number of side chains of a polymer.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: September 30, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Seung Yup Lee, Hye Sung Cho, Jin Sook Ryu
  • Publication number: 20140287762
    Abstract: A method and apparatus for avoiding a short stay problem in a wireless communication system is provided. An eNodeB (eNB) may determine a ratio of a number of short stay user equipments (UEs), which stay at a cell shorter than specific threshold time, to total number of UEs staying at the cell, and transmit the ratio of the number of short stay UEs to the total number of UEs to a previous eNB. Or, the eNB may receive measurement information of at least one second cell from a UE, determine whether the UE can be connected to the at least one second cell, and notify a second eNB whether the UE can be connected to the at least one second cell or not.
    Type: Application
    Filed: October 30, 2012
    Publication date: September 25, 2014
    Inventors: Kyung Min Park, Jin Sook Ryu, Jian Xu
  • Patent number: 8824427
    Abstract: The MTC device receives common control channel (CCCH) configuration information for CCCH configuration of a normal terminal and the MTC CCCH configuration information for CCCH configuration of the MTC device from a base station, selects one MTC CCCH group from a set of the MTC CCCH groups on the basis of the CCCH configuration information and the MTC CCCH configuration information, and transmits or receives data through an the MTC CCCH to which the selected the MTC CCCH group belongs.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: September 2, 2014
    Assignee: LG Electronics Inc.
    Inventors: Jin Sook Ryu, Dong Keun Lee
  • Publication number: 20140226605
    Abstract: A method and apparatus for selecting a cell in a wireless communication system is provided. A pico eNodeB (eNB) or a home eNB (HeNB) receives served cell information for a primary cell (PCell) or a secondary cell (SCell) from an interfering neighbor eNB. The served cell information includes information on the number or portion of user equipments (UEs) served by a corresponding cell and information on a resource usage status of the corresponding cell by the UEs. The pico eNB or the HeNB selects a PCell or a SCell based on the received served cell information.
    Type: Application
    Filed: September 26, 2012
    Publication date: August 14, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Jian Xu, Gene Beck Hahn, Kyung Min Park, Jin Sook Ryu
  • Publication number: 20140213264
    Abstract: A method and apparatus of performing a handover procedure in a wireless communication system is provided. The target eNodeB (eNB) receives a specific establishment cause of a user equipment (UE). The specific establishment cause among a plurality of establishment causes comprises emergency, high priority access, mobile terminated access, mobile oriented signaling, mobile oriented data, and delay tolerant access. The target eNB transmits a handover command message to the UE after receiving the specific establishment cause.
    Type: Application
    Filed: September 28, 2012
    Publication date: July 31, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyung Min Park, Jin Sook Ryu, Dae Wook Byun, Jian Xu, Young Dae Lee, Sung Hoon Jung
  • Publication number: 20140214338
    Abstract: The present disclosure relates to an apparatus and a method for analyzing side chains of a polymer. More specifically, the present disclosure relates to an apparatus and a method for analyzing the number of side chains of a polymer.
    Type: Application
    Filed: May 15, 2013
    Publication date: July 31, 2014
    Inventors: Seung Yup Lee, Hye Sung Cho, Jin Sook Ryu
  • Publication number: 20140141783
    Abstract: A method and apparatus for grouping home eNodeBs (HeNBs) in a wireless communication system is provided. The method includes grouping a plurality of HeNBs into at least one closed subscriber group (CSG) group, and transmitting an identifier (ID) of a specific CSG group to HeNBs included in the specific CSG group.
    Type: Application
    Filed: July 13, 2012
    Publication date: May 22, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Jian Xu, Jin Sook Ryu, Kyung Min Park, Young Dae Lee, Sung Hoon Jung
  • Publication number: 20140039074
    Abstract: The invention generally relates to the preparation of 18F-labeled radiopharmaceuticals. In particular, this invention relates to the advanced processes for an efficient eiution of [18F]fluoride trapped in a cartridge filled with quaternary ammonium polymer which comprises inert non-basic and non-nucleophilic counter anions. The said methods and polymer cartridges allow the rapid preparation of suitable [18F]fluoride solution, which is also less basic to reduce the formation of byproducts, finally to increase radiochemical yield and purity of 18F-radiopharmaceuticals.
    Type: Application
    Filed: September 6, 2011
    Publication date: February 6, 2014
    Applicant: PIRAMAL IMAGING SA
    Inventors: Dae Yoon Chi, Byoung Se Lee, Sang Ju Lee, Jin-Sook Ryu, Seung Ju Oh
  • Publication number: 20140010204
    Abstract: A method and apparatus for releasing a user equipment (DUE) context in a wireless communication system is provided. A home evolved NodeB (HeNB) gateway (GW)/X2-proxy receives a UE context release message, forwards the UE context release message to a source eNB; and releasing the UE context of the corresponding UE. The source eNB and the target eNB may be connected through an indirect X2 interface. Or, a home evolved NodeB (HeNB) gateway (GW)/X2-proxy receives a UE context release request message from a source eNB, and releases the UE context of the corresponding UE based on the UE context release request message. The source eNB and the target eNB may be connected through a direct X2 interface.
    Type: Application
    Filed: March 23, 2012
    Publication date: January 9, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Jian Xu, Gene Beck Hahn, Kyung Min Park, Jin Sook Ryu, Sung Hoon Jung
  • Patent number: 8615246
    Abstract: The present invention provides a method for receiving information on a network configuration. The present invention is to allow a terminal to acquire accurate information on a neighbor cell. Furthermore, the present invention is to remove duplicated information from the information message on a neighbor cell, for instance, Neighboring Cell Information, thereby allowing an effective configuration thereof and preventing from using network resources wastefully.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: December 24, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin-Sook Ryu, Ji-Woong Lee, Yung-Mi Kim