Patents by Inventor Jae-Heung Kim

Jae-Heung Kim 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 of managing terminal and controlling interference in small base station
    Patent number: 8958805
    Abstract: A method of managing a terminal and controlling an interference in a small base station is provided. The small base station, including: an access preamble control unit to assign a unique preamble for each terminal registered in the small base station; a transmitting/receiving unit to receive a random access request message from each of the terminals through the unique preamble, to transmit a reply message to each of the terminals, and to receive information about each of the terminals and a Radio Resource Control (RRC) connection request Message from each of the terminals in response to the reply message; and a terminal verification unit to verify whether each of the terminals is a registered terminal using the information about each of the terminals.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: February 17, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae Heung Kim, Kyoung Seok Lee, Jae Young Ahn, Yeong Jin Kim
  • APPARATUS AND METHOD FOR MODULATING DATA MESSAGE BY EMPLOYING ORTHOGONAL VARIABLE SPREADING FACTOR (OVSF) CODES IN MOBILE COMMUNICATION SYSTEM
    Publication number: 20150030055
    Abstract: A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal.
    Type: Application
    Filed: September 12, 2014
    Publication date: January 29, 2015
    Inventors: Seung Chan BANG, Tae Joong KIM, Jae Heung KIM, Jung Im KIM, Jong Suk CHAE, Hyuck Jae LEE, Jae Ryong SHIM, Narm Hee LEE
  • Resource allocating apparatus and method for machine type communication
    Patent number: 8937916
    Abstract: There are provided a resource allocating method for machine type communication (MTC), a data transmission and reception method for an MTC device, and an MTC device using the data transmission and reception method. The transmission and reception method for the MTC device includes: receiving a downlink frame from a base station; searching for a control information block in a downlink control resource area of the downlink frame; determining whether the control information block is for MTC service or includes control information whose destination is the MTC device, using an MTC device identifier or an identifier designated for MTC service scheduling; and extracting MTC service packet data included in a radio resource for transmission of MTC data, using the control information block, according to the results of the determination.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: January 20, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Jae Heung Kim
  • Apparatus and method for constituting control information for a multi-cast broadcast service
    Patent number: 8879489
    Abstract: The present invention relates to an apparatus and a method for constituting control information for at least one subframe allocation pattern for a multi-cast broadcast service. The method compares periods of radio frame units for each of subframe allocation patterns, sets up a unit period in which at least one subframe allocation pattern is repeated, and sets up control information containing subframe information allocated for a multi-cast broadcast service in the unit period set in the previous step. The method of the present invention enables, for example, efficient separation of MBSFN subframe for an MBMS from other MBSFN subframes.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: November 4, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kook Jin Lee, Jae Heung Kim
  • METHOD FOR PAGING INFORMATION IN CELLULAR SYSTEM
    Publication number: 20140247788
    Abstract: Provided is a method for transmitting paging information in a cellular system. An object of the method is transmitting paging information which can improve applicability of a limited radio resource by variably and flexibly setting up and mapping a transport channel and a physical channel in order to transmit information notifying start of downlink information from a base station to a terminal in a cellular system for packet transmission. The method includes the steps of: forming a paging channel (PCH) in a transport channel corresponding to generation of paging information; setting a paging indication channel (PICH) based on the paging information and forming the paging indication channel in a radio resource of a physical layer; and allocating the paging channel to the radio resource of the physical layer.
    Type: Application
    Filed: May 13, 2014
    Publication date: September 4, 2014
    Applicant: Electronics & Telecommunications Research Institute
    Inventors: Jae Heung KIM, Jung Im KIM, Kyoung Seok LEE, Soo Jung JUNG, Seung Chan BANG, Byung Han RYU
  • METHOD FOR DETERMINING POSITION OF TERMINAL IN CELLULAR MOBILE COMMUNICATION SYSTEM
    Publication number: 20140235273
    Abstract: Disclosed is a method for determining the position of a terminal. The method for determining the position of a terminal belonging to an overlay network environment comprises: a step in which the terminal transmits a position determination request to a positioning server; and a step in which the terminal receives, from the positioning server, position determination support information comprising a virtual cell ID allocated to transmission points surrounding the terminal. Therefore, using this method for determining the position of a terminal enables highly accurate position determination even in an overlay network environment in which a plurality of transmission points are configured so as to have the same cell ID.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 21, 2014
    Inventors: Jae Young Ahn, Jae Heung Kim, Young Jo Ko
  • Apparatus and method for random access in cellular system
    Patent number: 8797973
    Abstract: Disclosed is a method and apparatus for RA in a cellular system. The RA in the cellular system includes receiving an RA preamble from a terminal for RA, transmitting, to the terminal, an RA response message including a sequence of the received RA preamble and uplink resource information of the terminal and overload state information with respect to the RA, receiving control information generated based on the RA response message from the terminal through the uplink resource information, and transmitting control response information with respect to the received control information.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: August 5, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae Heung Kim, Kyoung Seok Lee, Jung-Im Kim, Byung-Han Ryu, Seung Chan Bang
  • Method for paging information in cellular system
    Patent number: 8761814
    Abstract: Provided is a method for transmitting paging information in a cellular system. An object of the method is transmitting paging information which can improve applicability of a limited radio resource by variably and flexibly setting up and mapping a transport channel and a physical channel in order to transmit information notifying start of downlink information from a base station to a terminal in a cellular system for packet transmission. The method includes the steps of: forming a paging channel (PCH) in a transport channel corresponding to generation of paging information; setting a paging indication channel (PICH) based on the paging information and forming the paging indication channel in a radio resource of a physical layer; and allocating the paging channel to the radio resource of the physical layer.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: June 24, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-Heung Kim, Jung-Im Kim, Kyoung-Seok Lee, Soo-Jung Jung, Byung-Han Ryu, Seung-Chan Bang
  • Method of channel management for multiple component carrier in mobile communication system
    Patent number: 8743720
    Abstract: Disclosed are channel management methods in a multicarrier structure in a mobile communication system. Uplink (UL) and downlink (DL) channel management methods in a carrier aggregation environment are used as the channel management methods. In DL, a base station determines a component carrier (CC) of an unstable radio channel state, stops data retransmission by the CC, and notifies a terminal of retransmission stop. In UL, the base station determines a CC of an unstable radio channel state and instructs the terminal to stop data retransmission by the CC, and the terminal stops the data retransmission and initializes a retransmission buffer.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: June 3, 2014
    Assignee: Electronics & Telecommunications Research Institute
    Inventors: Kyoung Seok Lee, Jae Heung Kim, Kook Jin Lee
  • METHOD OF CHANNEL MANAGEMENT FOR MULTIPLE COMPONENT CARRIER IN MOBILE COMMUNICATION SYSTEM
    Publication number: 20140140309
    Abstract: Disclosed are channel management methods in a multicarrier structure in a mobile communication system. Uplink (UL) and downlink (DL) channel management methods in a carrier aggregation environment are used as the channel management methods. Using the channel management methods in the mobile communication system employing the multicarrier structure, an increase in the number of unnecessary retransmissions is prevented, so that unnecessary retransmission and power consumption of the terminal can be reduced and the waste of radio resources and the degradation of base station performance due to unnecessary retransmission can be prevented.
    Type: Application
    Filed: January 28, 2014
    Publication date: May 22, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kyoung Seok LEE, Jae Heung KIM, Kook Jin LEE
  • Method and apparatus for error correction in MBMS receipt system
    Patent number: 8711829
    Abstract: Provided is an error correcting method that can provide improved error correction efficiency in a multimedia broadcast/multicast service (MBMS) by marking the presence of an error in a Protocol Data Unit (PDU) with an error instead of discarding the erroneous PDU in an MBMS terminal of the MBMS system, which performs error correction in an application layer, and transmitting the erroneous PDU together with a PDU without an error to the application layer, and an error correction apparatus employing the method. The MBMS terminal includes: a radio link control (RLC) protocol processor configured to receive PDUs generated from the reception data, generate service data units (SDUs) by combining the PDUs, mark whether there is an SDU recovered from a PDU with an error, and output the SDUs; and a packet data convergence protocol (PDCP) processing means configured to receive and deliver the SDUs.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: April 29, 2014
    Assignees: Electronics and Telecommunications Research Institute, SK Telecom Co., Ltd, KT Corporation
    Inventors: Jung-Im Kim, Jae-Heung Kim, Kyoung-Seok Lee, Byung-Han Ryu, Seung-Chan Bang
  • RESOURCE ALLOCATION APPARATUS IN IP UPLINK
    Publication number: 20140078908
    Abstract: Provided is a method that may allocate uplink radio resources to a terminal, and may receive data from the terminal using the radio resources. The uplink radio resources may be allocated as contention-based radio resources in a radio network, such as a cellular system, a radio local access network (LAN), and the like, and thus, a plurality of terminals may effectively transmit data using minimum radio resources.
    Type: Application
    Filed: November 22, 2013
    Publication date: March 20, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: Jae Heung KIM
  • Data transmission/receiving method in multimedia broadcast multicast service system and apparatus thereof
    Patent number: 8635506
    Abstract: Provided is a Multimedia Broadcast Multicast Service (MBMS); and, more particularly, a data transmission/receiving method in a multimedia broadcast multicast service system, and an apparatus thereof. The data transmitting method in the MBMS system includes the step of checking a terminal receiving data provided from the MBMS and the step of determining whether there is error report feedback on retransmission of the data according to the number of the detected terminals.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: January 21, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung-Im Kim, Kyoung-Seok Lee, Jae-Heung Kim, Byung-Han Ryu, Seung-Chan Bang
  • Method and apparatus for supporting discontinuous operation of base station in wireless communication system and control system thereof
    Patent number: 8620375
    Abstract: An operation control method in a base station of a wireless communication system includes: checking whether or not an allowed mobile station exists in coverage of the base station and overall coverage of base stations adjacent to the base station; and controlling the base station to perform transmission/reception at a predetermined period through a first discontinuous operation, when the allowed mobile station does not exist in the coverage of the base station and the overall coverage of the adjacent base stations.
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: December 31, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Tae-Joong Kim, Kwang-Chun Lee, Jae-Heung Kim, Hyun-Kyu Chung
  • APPARATUS AND METHOD FOR MODULATING DATA MESSAGE BY EMPLOYING ORTHOGONAL VARIABLE SPREADING FACTOR (OVSF) CODES IN MOBILE COMMUNICATION SYSTEM
    Publication number: 20130336365
    Abstract: A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal.
    Type: Application
    Filed: August 21, 2013
    Publication date: December 19, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seung Chan BANG, Tae Joong KIM, Jae Heung KIM, Jung Im KIM, Jong Suk CHAE, Hyuck Jae LEE, Jae Ryong SHIM, Narm Hee LEE
  • TOUCH DETECTING DEVICE AND METHOD USING GROUP IDENTIFICATION
    Publication number: 20130314374
    Abstract: A capacitive type touch detecting device has one or more sensor pattern groups disposed in a row or column direction. A capacitive type touch detecting device for the sensor pattern groups is formed in a single layer, and thus it is possible to reduce production costs, and to simplify a manufacturing process. Further, the capacitive type touch detecting device requires a relatively smaller number of signal wires than a structure in which the signal wires are formed on the respective sensor pads, and thus a space for the signal wires can be minimized.
    Type: Application
    Filed: May 25, 2013
    Publication date: November 28, 2013
    Applicant: CRUCIALTEC CO., LTD.
    Inventors: Jae Heung KIM, Young Jin OH
  • TOUCH DETECTING DEVICE USING SENSOR PAD SCRAMBLE
    Publication number: 20130314373
    Abstract: A capacitive type touch detecting device includes a first sensor pattern sub-group including a plurality of sensor pads, a second sensor pattern sub-group adjacent to the first sensor pattern sub-group in a second axis direction, a third sensor pattern sub-group adjacent to the first sensor pattern sub-group in the first axis direction, and a fourth sensor pattern sub-group adjacent to the second sensor pattern sub-group in the first axis direction. The sensor pads belonging to the first and third sensor pattern sub-groups are electrically connected, and the sensor pads belonging to the second and fourth sensor pattern sub-groups are electrically connected. A sequence in which the sensor pads belonging to the first and third sensor pattern sub-groups are connected is different from that in which the sensor pads belonging to the second and fourth sensor pattern sub-groups are connected.
    Type: Application
    Filed: May 25, 2013
    Publication date: November 28, 2013
    Applicant: CRUCIALTEC CO., LTD.
    Inventors: Jae Heung KIM, Young Jin OH
  • Method and apparatus for discontinuous transmission-reception operation for reducing power consumption in cellular system
    Patent number: 8594005
    Abstract: Provided is a method and apparatus for discontinuously transmitting/receiving packets for low-power consumption of a terminal in a cellular system for packet transmission. The present research provides a method and apparatus that can perform a low-power consuming operation when a terminal is in active state in a cellular system. The method for discontinuously transmitting/receiving packet data to reduce power consumption of a terminal in a cellular system, including a) establishing discontinuous reception/transmission (DRX/DTX) parameters including discontinuous DRX/DTX cycle information for terminals operating in a transmission suspension mode, which is a sub-state of an active state; and b) performing DRX/DTX based on the DRX/DTX parameters in the terminals operating in the transmission suspension mode.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: November 26, 2013
    Assignees: Electronics and Telecommunications Research Institute, SK Telecom Co., Ltd., KT Corporation
    Inventors: Jae-Heung Kim, Byung-Han Ryu, Seung-Chan Bang
  • Method for allocating and accessing radio resources in OFDMA system
    Patent number: 8588145
    Abstract: Disclosed is a method for allocating and accessing downlink resources in the OFDMA communication system. In the resource allocation method, bursts having the same modulation and channel encoding level are arranged in a predetermined temporal order on a physical layer. Information on the allocated unit resources is included in a common control block and is transmitted to a subscriber station, and the subscriber station then detects a number of the allocated unit resources to thus check the range of bursts to be received by the subscriber station. Therefore, power consumption by the subscriber station is reduced and signaling overheads of the common control information and unneeded residual resources are decreased.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: November 19, 2013
    Assignees: Electronics and Telecommunications Research Institute, Samsung Electronics Co., Ltd., KT Corporation, SK Telecom Co., Ltd., KTFreetel Co., Ltd., Hanaro Telecom., Inc.
    Inventors: Chul-Sik Yoon, Soon-Yong Lim, Jae-Heung Kim, Kun-Min Yeo, Byung-Han Ryu
  • Preamble allocation method and random access method in mobile communication system
    Patent number: 8559382
    Abstract: The present invention relates to a preamble allocation method and a random access method in a mobile communication system. In the present invention, one among preamble resources is allocated to specific mobile stations in advance, before random access. The mobile stations request random access by transmitting a preamble based on the pre-allocated preamble resource to a base station. It is therefore possible to prevent collision caused by the fact that other mobile stations transmit the same preamble.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: October 15, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jae-Heung Kim, Kyoung-Seok Lee, Jung-Im Kim, Byung-Han Ryu, Seung-Chan Bang