Patents by Inventor Youn-Sun Kim

Youn-Sun 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 for processing CSI-RS in wireless communication system
    Patent number: 9077519
    Abstract: A method for transmitting a Channel State Information-Reference Signal (CSI-RS) in an Orthogonal Frequency Division Multiple Access (OFDMA) system, the method comprising of determining a CSI-RS pattern type based on a Physical Resource Block (PRB) index of a subframe, assigning, when the subframe is supposed to carry the CSI-RS, CSI-RSs of first to Nth antenna ports to first to Nth Orthogonal Frequency Division Multiplexing (OFDM) symbols of a PRB based on the CSI-RS pattern type, and transmitting the subframe including the PRB in which CSI-RSs of the first to Nth antennas a mapped, wherein the first to Nth CSI-RS pattern types map CSI-RSs of the first to Nth antenna ports to the first to Nth OFDM symbols of the PRB in an alternate manner.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: July 7, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youn Sun Kim, Jin Kyu Han, Sung Tae Kim, Myung Hoon Yeon, Cheng Shan, In Ho Lee
  • METHOD AND APPARATUS FOR DEFINING TRANSCEIVING TIMING OF A PHYSICAL CHANNEL IN A TDD COMMUNICATION SYSTEM WHICH SUPPORTS CROSS-CARRIER SCHEDULING
    Publication number: 20150172039
    Abstract: A method, base station, and terminal employing time division duplex and carrier aggregation are disclosed. The method by the base station includes transmitting, to a terminal, scheduling information on a control channel of a first cell, and transmitting, to the terminal, data on a shared channel of a second cell based on the scheduling information. The scheduling information is transmitted in a first downlink subframe or a first subframe including downlink pilot time slot (DwPTS) based on first subframe configuration information of the first cell. The data is transmitted in a second downlink subframe or a second subframe including DwPTS corresponding to the first downlink subframe or the first subframe. The first subframe configuration information of the first cell is different from second subframe configuration information of the second cell.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 18, 2015
    Inventors: Young Bum KIM, Joon Young CHO, Jin Kyu HAN, Seung Hoon CHOI, Youn Sun KIM, Hyoung Ju JI
  • ORGANOMETALLIC COMPLEX AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
    Publication number: 20150162553
    Abstract: An organometallic complex represented by Formula 1 below and an organic light-emitting device including the same: Formula 1 is as defined in the specification.
    Type: Application
    Filed: March 31, 2014
    Publication date: June 11, 2015
    Applicants: Korea Advanced Institute of Science and Technology, Samsung Display Co., Ltd.
    Inventors: Youn-Sun Kim, Yun-Ho Lee, Seul-Ong Kim, Dong-Woo Shin, Jung-Sub Lee, Naoyuki Ito, Chang-Woong Chu, Yeong-Eun Kim
  • METHOD AND APPARATUS FOR TRANSMITTING DOWNLINK CONTROL INFORMATION FOR RESOURCE ALLOCATION IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20150156753
    Abstract: A method and apparatus are provided for transmitting and receiving Downlink Control Information (DCI) in a wireless communication system. A method includes generating downlink control information including an antenna port indicator comprising antenna port information and scrambling identity information; and transmitting, to a terminal, the downlink control information and data associated with the downlink control information. The scrambling identity information indicates one of two scrambling sequences, if a number of antenna ports indicated by the antenna port information is one and one transport block is enabled.
    Type: Application
    Filed: February 6, 2015
    Publication date: June 4, 2015
    Inventors: Cheng SHAN, Jin Kyu Han, Youn Sun Kim
  • Method and device for indicating whether terminal carrier aggregation has been activated in a cellular wireless communication system
    Patent number: 9036549
    Abstract: A method and device deactivate carrier aggregation and execute single carrier operation in a terminal, in a wireless communication system in which broadband is achieved by means of carrier aggregation. More specifically, in a terminal which is running a plurality of carriers, unnecessary power consumption in the terminal is prevented and additional screening events are minimized by defining physical layer signaling so as to make the terminal rapidly convert to running a single carrier.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: May 19, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Bum Kim, Joon-Young Cho, Youn-Sun Kim, Jin-Kyu Han, Seung-Hoon Choi
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20150124753
    Abstract: Methods and apparatus are provided for transmitting a reference signal by a base station in a mobile communication system. The method includes generating, at the base station, information for a non zero transmission power reference signal including at least one resource element; generating, at the base station, bitmap information indicating a zero transmission power reference signal; and transmitting, at the base station, the information for the non zero transmission power reference signal and the bitmap information to a terminal.
    Type: Application
    Filed: January 5, 2015
    Publication date: May 7, 2015
    Inventors: Sung Tae KIM, Youn Sun Kim, Jin-Kyu Han
  • DEVICE AND METHOD FOR COMMUNICATING CHANNEL STATE INFORMATION REFERENCE SIGNAL (CSI-RS) IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20150124758
    Abstract: A method for wireless communication by a terminal, a method for wireless communication by a base station, the terminal, and the base station, are provided. The method for wireless communication by the terminal includes receiving first information comprising a muting subframe interval, a subframe offset, and a muting position of a resource element in a resource block, checking presence of a data in a subframe, determining the resource element to be muted in the subframe based on the muting subframe interval, the subframe offset, and the muting position, if the data is present, and receiving the data on a physical downlink shared channel (PDSCH) based on the result of the determining step.
    Type: Application
    Filed: January 8, 2015
    Publication date: May 7, 2015
    Inventors: Youn Sun KIM, Jin Kyu HAN, Sung Tae KIM, Myung Hoon YEON, Shan CHENG, In Ho LEE
  • METHOD AND APPARATUS FOR RANDOM INTERFERENCE MEASUREMENT RESOURCE PATTERN DETERMINATION
    Publication number: 20150111505
    Abstract: A method and apparatus for transmitting feedback information is provided for use in a Cooperative Multi-Point downlink transmission of multiple base stations efficiently. An interference measurement method of a base station in a mobile communication system, the method comprising: allocating at least one Interference Measurement Resource (IMR) to a terminal; transmitting the allocated IMR to the terminal; and receiving at least one channel status information from the terminal; wherein allocating at least one IMR comprises allocating at least one IMR for the terminal overlapped to other IMR for the other terminal.
    Type: Application
    Filed: May 29, 2013
    Publication date: April 23, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Youn Sun Kim, Hyo Jin Lee, Ju Ho Lee
  • Method and apparatus for communicating with base station based on speed of user equipment in mobile communication system
    Patent number: 9014701
    Abstract: Provided is a method for performing communication with a network by a User Equipment (UE) based on its speed information in the network in which at least one portion includes at least one micro cell overlapping at least one macro cell. The method includes measuring, by the UE, its moving speed; and performing at least one of feedback, measurement report, random access and UE capability report to the network by considering the measurement result.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: April 21, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jin-Kyu Han, Youn-Sun Kim, Ju-Ho Lee
  • Method and apparatus for defining transceiving timing of a physical channel in a TDD communication system which supports cross-carrier scheduling
    Patent number: 9007964
    Abstract: The present invention relates to a method for defining, in a TDD wireless communication system in which broadband is configured by means of carrier aggregation, transceiving timing for a data channel and a control channel when cross-carrier scheduling is implemented.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 14, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young Bum Kim, Joon Young Cho, Jin Kyu Han, Seung Hoon Choi, Youn Sun Kim, Hyoung Ju Ji
  • METHOD AND APPARATUS FOR CONTROLLING RETRANSMISSION ON UPLINK IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING MIMO
    Publication number: 20150098432
    Abstract: Methods and apparatuses are provided for controlling retransmission by a User Equipment (UE) in a communication system. A negative acknowledgement (NACK) is received, from a Node B, for at least one transport block among a plurality of transport blocks transmitted by the UE. A precoding matrix and a number of layers for retransmission are determined. The at least one transport block is retransmitted using the determined precoding matrix and the determined number of layers. The precoding matrix is predefined and the number of layers is equal to a number of layers corresponding to the at least one transport block, if the UE does not receive a physical downlink control channel (PDCCH) intended for the UE and a number of the at least one transport block is not equal to a number of the plurality of transport blocks.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Inventors: Jin-Kyu HAN, Youn-Sun KIM, Myung-Hoon YEON, Han-II YU
  • METHOD FOR MAPPING AND DEMAPPING RESOURCE IN A WIRELESS COMMUNICATION SYSTEM AND AN APPARATUS THEREOF
    Publication number: 20150098518
    Abstract: A method and apparatus for mapping/demapping a resource efficiently in a wireless communication system are provided. A resource mapping method of a transmitter in a wireless communication system includes precoding pairs of symbols, arranging the pairs of precoded symbols adjacently in a resource block, and transmitting the pairs of precoded symbols in the resource block.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Inventors: Sung Tae KIM, Youn Sun KIM, Jin Kyu HAN, In Ho LEE
  • METHOD FOR MAPPING AND DEMAPPING RESOURCE IN A WIRELESS COMMUNICATION SYSTEM AND AN APPARATUS THEREOF
    Publication number: 20150098517
    Abstract: A method and apparatus for mapping/demapping a resource efficiently in a wireless communication system are provided. A resource mapping method of a transmitter in a wireless communication system includes precoding pairs of symbols, arranging the pairs of precoded symbols adjacently in a resource block, and transmitting the pairs of precoded symbols in the resource block.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Inventors: Sung Tae KIM, Youn Sun KIM, Jin Kyu HAN, In Ho LEE
  • Method and apparatus for transmitting and receiving feedback information in a mobile communication system
    Patent number: 9002345
    Abstract: A method and apparatus for transmitting feedback information by a User Equipment (UE) in a mobile communication system are provided. The method includes receiving information about at least one Channel State Information Reference Signal (CSI-RS); performing channel estimation based on the information about at least one CSI-RS; receiving information about at least one feedback; and transmitting at least one feedback including a channel estimation result using the information about at least one feedback, wherein the information about at least one feedback includes information about a transmission timing and a feedback mode for at least one feedback.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: April 7, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyo-Jin Lee, Youn-Sun Kim, Ki-Il Kim
  • Antenna allocation apparatus and method for cellular mobile communication system
    Patent number: 9001677
    Abstract: A method and apparatus for selecting and allocating antennas efficiently are provided. The method includes transmitting, to a User Equipment (UE), information indicating a configuration of a plurality of Channel Status Information Reference Signals (CSI-RSs) through UE specific signaling during an initial access attempt with the UE; receiving, from the UE, CSI-RS measurement results indicating configured CSI-RSs; transmitting CSI-RSs corresponding to a set of available distributed ports (D-ports) based on received signal strength information included in results of the CSI-RS measurement; and determining a CSI-RS of a selected D-port set for use in communications based on feedback information received from the UE.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: April 7, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Youn Sun Kim, Young Bum Kim, Hyo Jin Lee, Joon Young Cho, Ju Ho Lee, Jin Kyu Han, Shan Cheng
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20150092729
    Abstract: A method and an apparatus are provided for transmitting and receiving control information in wireless communication system. A method includes transmitting, through Radio Resource Control (RRC) signaling, information representative of a set of resource blocks for transmitting the control information; generating the control information; and transmitting the control information based on at least one enhanced Control Channel Element (eCCE), at least one antenna port, and the set of resource blocks. The at least one antenna port is determined according to a starting index of the at least one eCCE and an IDentifier (ID) of the UE, when using localized eCCE allocation within the set of resource blocks.
    Type: Application
    Filed: December 10, 2014
    Publication date: April 2, 2015
    Inventors: Cheng SHAN, Youn-Sun KIM
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING DATA
    Publication number: 20150085737
    Abstract: An apparatus and method are provided for receiving data by a first transceiver. The method includes receiving information for at least one transmission mode through higher layer signaling from a second transceiver; and receiving data on a first sub-frame based on a first demodulation reference signal (DMRS), if the at least one transmission mode is transmission mode 9 or transmission mode 10 and the first sub-frame is a multimedia broadcast multicast service single frequency network (MBSFN) sub-frame.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 26, 2015
    Inventors: Jin Kyu HAN, Youn Sun Kim
  • Method and apparatus for transmitting downlink control information for resource allocation in a wireless communication system
    Patent number: 8989756
    Abstract: A method and apparatus for transmitting and receiving Downlink Control Information (DCI) in a wireless communication system. A method for transmitting DCI by a base station includes generating the DCI including at least one of a data format indicator for at least one Transport Block (TB), and a DeModulation Reference Signal (DMRS) resource allocation indicator corresponding to the at least one TB; and sending the DCI to a terminal. The DMRS resource allocation indicator includes a rank pattern for the at least one TB, an allocated scrambling code type, and DMRS port information.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: March 24, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Cheng Shan, Jin Kyu Han, Youn Sun Kim
  • Method and apparatus for transmitting and receiving data
    Patent number: 8976746
    Abstract: A transmission scheme newly adds a Demodulation Reference Signal (DM-RS) to estimate a channel response for demodulation. When a transmission scheme based on Long Term Evolution Common Reference Signal (LTE CRS) is set in a user, a corresponding user cannot receive data in a Multimedia Broadcast Multicast Service Single Frequency Network (MBSFN) sub-frame. To solve this problem, the present scheme separates and sets a transmission mode for sub-frame and a transmission mode for MBSFN.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: March 10, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jin Kyu Han, Youn Sun Kim
  • METHOD AND APPARATUS FOR REPORTING CHANNEL STATUS INFORMATION IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20150063324
    Abstract: A method and apparatus of a user equipment are provided for transmitting a channel status report in a communication system. The method includes receiving first information for at least one channel status report; generating a first channel status report corresponding to the first information for the at least one channel status report based on a reference signal in a first subframe; and transmitting the first channel status report based on the first information for the at least one channel status report in a second subframe. The first information for the at least one channel status report comprises information for a period and an offset, and a difference between the first subframe and the second subframe is a smallest value greater than or equal to a predetermined value.
    Type: Application
    Filed: November 5, 2014
    Publication date: March 5, 2015
    Inventors: In Ho LEE, Youn Sun KIM, Jin Kyu HAN