Patents by Inventor Hak-Seong Kim

Hak-Seong 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 OPERATING RELAY STATION IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20160099767
    Abstract: A method of operating a relay station in a wireless communication system is provided. The method includes operating in a first mode comprising a first sub-mode and a second sub-mode, in the first sub-mode a first downlink and a first uplink between a base station and the relay station being simultaneously activated, in the second sub-mode a second downlink and a second uplink between the relay station and a mobile station being simultaneously activated, and operating in a second mode comprising a third sub-mode and a fourth sub-mode, in the third sub-mode the first downlink and the second uplink being simultaneously activated, in the fourth sub-mode the first uplink and the second downlink being simultaneously activated.
    Type: Application
    Filed: December 14, 2015
    Publication date: April 7, 2016
    Inventors: Hak Seong KIM, Ki Jun KIM, Yu Jin NOH, Dae Won LEE, Bong Hoe KIM
  • Method of transmitting sounding reference signal in wireless communication system
    Patent number: 9300455
    Abstract: A method of transmitting a sounding reference signal includes generating a physical uplink control channel (PUCCH) carrying uplink control information on a subframe, the subframe comprising a plurality of SC-FDMA (single carrier-frequency division multiple access) symbols, wherein the uplink control information is punctured on one SC-FDMA symbol in the subframe, and transmitting simultaneously the uplink control information on the PUCCH and a sounding reference signal on the punctured SC-FDMA symbol. The uplink control information and the sounding reference signal can be simultaneously transmitted without affecting a single carrier characteristic.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: March 29, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Hak Seong Kim, Bong Hoe Kim, Young Woo Yun, Ki Jun Kim, Dong Wook Roh, Dae Won Lee, Suk Hyon Yoon, Joon Kui Ahn, Dong Youn Seo
  • Relay node apparatus for transmitting and receiving signal according to link operation mode in wireless communication system and method thereof
    Patent number: 9281889
    Abstract: A relay node (RN) apparatus for transmitting and receiving a signal according to a link mode in a wireless communication system and a method thereof are disclosed. A processor transmits or receives a signal to or from at least one of a base station and a terminal based on link mode information. At least one antenna receive the link mode information and transmit or receive the signal to or from at least one of the base station and the user equipment. The link mode information includes information a link mode in which the relay node apparatus will operate.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: March 8, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Hak Seong Kim, Byoung Hoon Kim, Han Byul Seo, Dae Won Lee
  • METHOD OF ALLOCATING RADIO RESOURCES IN MULTI-CARRIER SYSTEM
    Publication number: 20160066327
    Abstract: A method of allocating radio resources in a multi-carrier system is disclosed, by which a signaling message can be efficiently transmitted according to necessity of a user equipment. In a user equipment of a mobile communication system transceiving data using a plurality of subcarriers, the present invention includes the steps of if the signaling message to be transmitted is generated in the user equipment, generating a preamble sequence according to a user equipment identifier to identify the user equipment, transmitting a preamble signal including the preamble sequence and the signaling message to a base station, and receiving an acknowledgement signal for the preamble signal generated according to the user equipment identifier.
    Type: Application
    Filed: November 6, 2015
    Publication date: March 3, 2016
    Applicant: LG ELECTRONICS INC.
    Inventors: Hak Seong KIM, Bong Hoe KIM, Joon Kui AHN, Dong Youn SEO, Jung Hoon LEE, Young Woo YUN, Suk Hyon YOON, Eun Sun KIM, Ki Jun KIM
  • METHOD FOR TRANSMITTING PILOT FOR MULTIPLE CARRIER SYSTEM
    Publication number: 20160056937
    Abstract: A method of transmitting pilot signals in a system which performs communication using two or more earners comprises transmitting first pilots and second pilots from at least one user equipment to a base station, the first and second pilots, which are transmitted from the at least one user equipment, being multiplexed by code division multiplexing, and the first and second pilots, which are transmitted from a specific user equipment, having different transmission powers, and transmitting data from the at least one user equipment to the base station depending on the first pilots and the second pilots. Since many UEs can transmit CQ pilots, exact channel estimation can be performed and thus communication efficiency can be improved.
    Type: Application
    Filed: November 2, 2015
    Publication date: February 25, 2016
    Inventors: Young Woo Yun, Hak Seong Kim, Bong Hoe Kim, Joon Kui Ahn, Dong Youn Seo, Jung Hoon Lee, Ki Jun Kim, Suk Hyon Yoon, Eun Sun Kim
  • METHOD AND APPARATUS FOR SUPPORTING HARQ
    Publication number: 20160020874
    Abstract: A method of supporting Hybrid Automatic Repeat Request (HARQ) includes receiving an initial uplink grant on a downlink channel, transmitting uplink data on an uplink channel using the initial uplink grant, receiving a request for retransmission of the uplink data, determining at least one transmission parameter of a channel quality indicator (CQI) from the initial uplink grant, multiplexing retransmission data of the uplink data with the CQI, and transmitting the multiplexed data on the uplink channel. Amount of resources for transmission of the CQI is determined based on the at least one transmission parameter.
    Type: Application
    Filed: September 29, 2015
    Publication date: January 21, 2016
    Applicant: LG ELECTRONICS INC.
    Inventors: Hak Seong KIM, Joon Kui AHN, Dae Won LEE
  • Method of operating relay station in wireless communication system
    Patent number: 9240833
    Abstract: A method of operating a relay station in a wireless communication system is provided. The method includes operating in a first mode comprising a first sub-mode and a second sub-mode, in the first sub-mode a first downlink and a first uplink between a base station and the relay station being simultaneously activated, in the second sub-mode a second downlink and a second uplink between the relay station and a mobile station being simultaneously activated, and operating in a second mode comprising a third sub-mode and a fourth sub-mode, in the third sub-mode the first downlink and the second uplink being simultaneously activated, in the fourth sub-mode the first uplink and the second downlink being simultaneously activated.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: January 19, 2016
    Assignee: LG Electronics Inc.
    Inventors: Hak Seong Kim, Ki Jun Kim, Yujin Noh, Dae Won Lee, Bonghoe Kim
  • Method for transmitting and receiving a signal to protect against erroneous feedback information
    Patent number: 9236926
    Abstract: A method for providing precoding weights for data symbols of data control subframes includes generating a downlink frame having control subframes which individually correspond to one of a plurality of downlink data subframes, and inserting weight information into each of the control subframes, such that the weight information is to be applied to data symbols present in the corresponding one of the data subframes. The method further includes transmitting the control subframes and the inserted weight information to a receiving device.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: January 12, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Dong Youn Seo, Bong Hoe Kim, Young Woo Yun, Ki Jun Kim, Jung Hoon Lee, Eun Sun Kim, Hak Seong Kim, Suk Hyon Yoon, Joon Kui Ahn
  • Method of allocating radio resources in multi-carrier system
    Patent number: 9215052
    Abstract: A method of allocating radio resources in a multi-carrier system is disclosed, by which a signaling message can be efficiently transmitted according to necessity of a user equipment. In a user equipment of a mobile communication system transceiving data using a plurality of subcarriers, the present invention includes the steps of if the signaling message to be transmitted is generated in the user equipment, generating a preamble sequence according to a user equipment identifier to identify the user equipment, transmitting a preamble signal including the preamble sequence and the signaling message to a base station, and receiving an acknowledgement signal for the preamble signal generated according to the user equipment identifier.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: December 15, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Hak Seong Kim, Bong Hoe Kim, Joon Kui Ahn, Dong Youn Seo, Jung Hoon Lee, Young Woo Yun, Suk Hyon Yoon, Eun Sun Kim, Ki Jun Kim
  • Method for transmitting pilot for multiple carrier system
    Patent number: 9203569
    Abstract: A method of transmitting pilot signals in a system which performs communication using two or more earners comprises transmitting first pilots and second pilots from at least one user equipment to a base station, the first and second pilots, which are transmitted from the at least one user equipment, being multiplexed by code division multiplexing, and the first and second pilots, which are transmitted from a specific user equipment, having different transmission powers, and transmitting data from the at least one user equipment to the base station depending on the first pilots and the second pilots. Since many UEs can transmit CQ pilots, exact channel estimation can be performed and thus communication efficiency can be improved.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: December 1, 2015
    Assignee: LG Electronics Inc.
    Inventors: Young Woo Yun, Hak Seong Kim, Bong Hoe Kim, Joon Kui Ahn, Dong Youn Seo, Jung Hoon Lee, Ki Jun Kim, Suk Hyon Yoon, Eun Sun Kim
  • Method for prioritizing operation of relay node in a wireless communication system and apparatus for the same
    Patent number: 9203502
    Abstract: Various methods and apparatuses for prioritizing operation of Relay Node are disclosed. A method for prioritizing the transmission and receipt of uplink signals in a relay node of a wireless communication system is presented. The method comprises determining radio resource requirements for receiving one or more access link signals and/or transmitting one or more backhaul link signal, determining the signal type of the one or more access link signals and/or determining the signal type of the one or more backhaul link signals, and selecting one of a transmitting mode operation and a receiving mode operation based on the radio resource requirements for receiving the one or more access link signals and/or transmitting the one or more backhaul link signals, and based on the signal type of the one or more access link signals and/or the signal type of the one or more backhaul link signals.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: December 1, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Hak Seong Kim
  • METHOD AND DEVICE FOR TRANSMITTING A SOUNDING REFERENCE SIGNAL
    Publication number: 20150333886
    Abstract: A method of transmitting a sounding reference signal (SRS) in a wireless communication system is discussed. The method according to one embodiment includes receiving a first UE-specific configuration indicating possible subframes for aperiodic SRS transmission via a radio resource control (RRC) signaling, wherein the possible subframes are periodically configured; receiving a physical downlink control channel (PDCCH) signal including request information of requesting aperiodic SRS transmission; and transmitting at least one SRS one time in response to the request information within the possible subframes.
    Type: Application
    Filed: July 27, 2015
    Publication date: November 19, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Han Byul SEO, Byoung Hoon KIM, Ki Jun KIM, Hak Seong KIM
  • Method and apparatus for supporting HARQ
    Patent number: 9178678
    Abstract: A method of supporting Hybrid Automatic Repeat Request (HARQ) includes receiving an initial uplink grant on a downlink channel, transmitting uplink data on an uplink channel using the initial uplink grant, receiving a request for retransmission of the uplink data, determining at least one transmission parameter of a channel quality indicator (CQI) from the initial uplink grant, multiplexing retransmission data of the uplink data with the CQI, and transmitting the multiplexed data on the uplink channel. Amount of resources for transmission of the CQI is determined based on the at least one transmission parameter.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: November 3, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Hak Seong Kim, Joon Kui Ahn, Dae Won Lee
  • Dynamic uplink power control method and device in a wireless communications system
    Patent number: 9179414
    Abstract: A wireless communications system and, more particularly, to a dynamic uplink power control method and device in a wireless communications system are disclosed. A method for dynamically controlling an uplink transmission power at a base station is provided, the method includes the steps of receiving an uplink signal from a user equipment being served by the base station, deciding whether or not an uplink transmission to the base station from the user equipment causes an interference with another base station, and transmitting a transmission power control (TPC) command muting the uplink transmission to the user equipment.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: November 3, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Eun Sun Kim, Hak Seong Kim
  • METHOD FOR TRANSMITTING CONTROL SIGNAL USING EFFICIENT MULTIPLEXING
    Publication number: 20150305032
    Abstract: A method of transmitting a control signal using efficient multiplexing is disclosed. The present invention includes the steps of multiplexing a plurality of 1-bit control signals within a prescribed time-frequency domain by code division multiple access (CDMA) and transmitting the multiplexed control signals, wherein a plurality of the 1-hit control signals include a plurality of the 1-bit control signals for a specific transmitting side. Accordingly, reliability on 1-bit control signal transmission can be enhanced.
    Type: Application
    Filed: June 29, 2015
    Publication date: October 22, 2015
    Applicant: LG Electronics Inc.
    Inventors: Hak Seong KIM, Sung Duk CHOI, Ki Jun KIM, Suk Hyon YOON, Joon Kui AHN, Bong Hoe KIM, Dong Youn SEO, Young Woo YUN, Jung Hoon LEE, Seong Hoon JEONG
  • Method and apparatus for transmitting and receiving scheduling request using shared resource based filtering in radio communication system
    Patent number: 9167596
    Abstract: Disclosed herein is a method and apparatus for transmitting and receiving a scheduling request using a shared resource based filtering method in a radio communication system. The method for supporting scheduling request using shared resources at a base station including assigning each of one or more users to each of one or more subsets of Scheduling Request (SR) resources of a set consisting of a number, M, of SR resources, receiving scheduling request for the one or more users, determining SR resources used for the scheduling request among M SR resources, determining one or more users associated with the received scheduling request based on the assigned SR resources and the determined SR resources, and transmitting scheduling control information to determined one or more users.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: October 20, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Han Byul Seo, Byoung Hoon Kim, Hak Seong Kim
  • METHOD FOR TRANSCEIVING SIGNALS BETWEEN A BASE STATION AND A RELAY NODE IN A MULTIUSER MULTI-ANTENNA WIRELESS COMMUNICATION SYSTEM, AND APPARATUS FOR SAME
    Publication number: 20150296494
    Abstract: The present disclosure relates to a method in which a base station transmits signals to a relay node in a multiuser multi-antenna (MIMO) wireless communication system. More particularly, the method includes: allocating one or more antenna ports to one or more relay nodes, respectively; mapping each of a plurality of downlink grant signals for the one or more relay nodes to a preset resource domain from among resource domains corresponding to one of the allocated antenna ports; mapping uplink grant signals or data signals for the one or more relay nodes to the resource domains corresponding to the allocated antenna ports; and transmitting the mapped signals to the one or more relay nodes.
    Type: Application
    Filed: June 24, 2015
    Publication date: October 15, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Hak Seong KIM, Han Byul SEO, Byoung Hoon KIM, Ki Jun KIM, Dae Won LEE
  • BACKHAUL DOWNLINK SIGNAL DECODING METHOD OF RELAY STATION AND RELAY STATION USING SAME
    Publication number: 20150280809
    Abstract: A method of decoding a backhaul downlink signal of a relay node (RN). A higher layer signal indicating a maximum transmission rank is received from a base station (BS). Control information is received through a relay control channel from the BS. The control information is demodulated and mapped to resource elements (REs) which do not overlap with user equipment-specific reference signal (URS) REs in a control region which is used for the relay control channel transmission of the BS. The URS REs are reserved REs for URSs according to the maximum transmission rank. The control information is demodulated based on URSs transmitted by the BS on one fixed antenna port n, where n is a natural number.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 1, 2015
    Applicant: LG Electronics Inc.
    Inventors: Han Byul SEO, Dae Won LEE, Byoung Hoon KIM, Hak Seong KIM, Ki Jun KIM
  • Method and apparatus of communication using subframe between base station and relay
    Patent number: 9148217
    Abstract: Provided is a communication method of a relay station in a wireless communication system, the communication method comprising the steps of configuring subframes dedicated for a backhaul link between a base station and the relay station and receiving a signal from the base station via the subframes dedicated for the backhaul link, wherein access of a legacy mobile station to at least a part of the subframes dedicated for the backhaul link is restricted.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: September 29, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Hak-seong Kim, Eun Sun Kim, Byeong Geol Cheon, Joon Kui Ahn
  • Method for transmitting channel quality information in a Multiple Input Multiple Output system
    Patent number: 9148210
    Abstract: A method for transmitting channel quality information (CQI) in a MIMO system is provided that allows a receiver to feed back a CQI value to a transmitter. The method includes receiving a transmission (Tx) pilot signal for each Tx antenna from a base station (BS), measuring a first CQI value of a first codeword and a second CQI value of a second codeword based on the pilot signal, and transmitting the first CQI value of the first codeword and the second CQI value of the second codeword to the BS where at least the first or second CQI value includes specific information capable of indicating a transmission restriction status of a corresponding codeword.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: September 29, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Dong Youn Seo, Bong Hoe Kim, Ki Jun Kim, Hak Seong Kim, Dong Wook Roh