Patents by Inventor Eun Sun Kim

Eun 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).

  • RESOURCE ALLOCATION METHOD AND A METHOD FOR TRANSMITTING/RECEIVING RESOURCE ALLOCATION INFORMATION IN MOBILE COMMUNICATION SYSTEM
    Publication number: 20160006551
    Abstract: According to one embodiment, a user equipment for use in a mobile communication system is configured to: receive control information including a first field and a second field via a control channel, the first field indicating one of N (N?2) resource block group (RBG) sets and the second field including a bitmap, wherein each bit of the bitmap is used to indicate whether a corresponding resource block (RB) in the indicated one of the N RBG sets is allocated; interpret the first field and the second field for resource allocation in the control information; and receive data using the control information. An RBG set n (0?n<N) includes every Nth RBG starting from nth RBG, an RBG includes one or more consecutive RBs, and an RB includes a plurality of consecutive subcarriers.
    Type: Application
    Filed: September 15, 2015
    Publication date: January 7, 2016
    Applicant: LG ELECTRONICS INC.
    Inventors: Dae Won LEE, Young Woo YUN, Ki Jun KIM, Suk Hyon YOON, Joon Kui AHN, Dong Youn SEO, Eun Sun KIM
  • Two-photon fluorescent probes for imaging of total sulfide in live cell and tissue, and quantitative estimation of total sulfide concentration using the same
    Patent number: 9220794
    Abstract: The present disclosure relates to a two-photon fluorescent dye for imaging total sulfide in vivo and a method for quantitatively estimating total sulfide concentration in vivo using the same. The two-photon fluorescent dye, which includes a compound of [Chemical Formula 1], can detect hydrosulfide ion and image total sulfide and allows quantitative estimation of total sulfide concentration in vivo.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: December 29, 2015
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Bong-Rae Cho, Chang Su Lim, Sajal Kumar Das, Sun Young Yang, Eun Sun Kim, Hoon Jai Chun
  • Method and apparatus for receiving available channel information in a wireless LAN system
    Patent number: 9220015
    Abstract: The present invention relates to a method and apparatus for receiving a white space map in a wireless LAN system. According to one aspect of the present invention, in a method in which a first station (STA) receives a white space map in a wireless LAN system, wherein the first station operates as an unlicensed device that is allowed to operate in an available channel not used by a licensed device in a white space band, the first station receives, from a second station, a frame including the white space map which includes a black list and a first field for indicating that the white space map contains the black list, and operates in at least one channel from the rest of the channels in TVWS, excluding the channel contained in the black list, wherein the black list is a list of channels which cannot be used by the unlicensed device.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: December 22, 2015
    Assignee: LG Electronics Inc.
    Inventors: Eun Sun Kim, Byoung Hoon Kim, Yong Ho Seok
  • Method for communication based on identifying information assignment and apparatus for the same
    Patent number: 9220061
    Abstract: A communication method based on identifying information assignment in a wireless local area network (WLAN) system, performed by a station (STA), is provided. The method includes receiving an identifier assignment message from an access point (AP), wherein the identifier assignment message comprises identifying information for the STA, and TIM offset information for a time point at which at least one traffic indication map (TIM) element for the STA starts to be transmitted; receiving a first TIM element from the AP at a time point indicated by the TIM offset information; determining whether the first TIM element comprises the identifying information; and receiving a first data frame from the AP if the first TIM element contains the identifying information.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: December 22, 2015
    Assignee: LG Electronics Inc.
    Inventors: Eun Sun Kim, Yong Ho Seok, Jong Hyun Park, Hyang Sun You
  • Method and apparatus of transmit power control in wireless local area network
    Patent number: 9215599
    Abstract: A method and apparatus of controlling a transmit power in a wireless local area network is provided. A wireless device operated in a TV White Space transmits a white space map indicating a list of available channels, and transmits an extended power constraint indicating a plurality of transmission channels and a plurality of maximum transmit powers, wherein the plurality of transmission channels are selected among the list of available channels and each of the plurality of maximum transmit powers corresponds to a maximum transmit power for each of the plurality of transmission channels. Interference can be mitigated between wireless devices operated in the TV White Space.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: December 15, 2015
    Assignee: LG Electronics Inc.
    Inventors: Eun Sun Kim, Yong Ho Seok
  • 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 and apparatus of cipher communication for management frame using quality of service mechanism in wireless local area network system
    Patent number: 9197415
    Abstract: A method and apparatus are described for performing cipher communication in a wireless local area network system. A pseudo noise (PN) code sequence for a plaintext Medium Access Control (MAC) protocol data unit (MPDU) is obtained. An additional authentication data (AAD) is constructed by using at least one field in a header of the plaintext MPDU. A Nonce is constructed from the PN code sequence, an Address 2 field in the header of the plaintext MPDU and a Priority field in the header of the plaintext MPDU. A counter mode (CTR) is generated with cipher block chaining (CBC)-MAC Protocol (CCMP) header. Encrypted data and Message Integrity Code (MIC) are generated by using a temporal key, the AAD, and the Nonce. An encrypted MPDU is generated to be transmitted to a peer station by combining the plaintext MPDU header, the CCMP header, the encrypted data and the MIC.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: November 24, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Eun Sun Kim, Yong Ho Seok
  • Resource allocation method and a method for transmitting/receiving resource allocation information in mobile communication system
    Patent number: 9191173
    Abstract: According to one embodiment, a user equipment for use in a mobile communication system is configured to: receive control information including a first field and a second field via a control channel, the first field indicating one of N (N?2) resource block group (RBG) sets and the second field including a bitmap, wherein each bit of the bitmap is used to indicate whether a corresponding resource block (RB) in the indicated one of the N RBG sets is allocated; interpret the first field and the second field for resource allocation in the control information; and receive data using the control information. An RBG set n (0?n<N) includes every Nth RBG starting from nth RBG, an RBG includes one or more consecutive RBs, and an RB includes a plurality of consecutive subcarriers.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: November 17, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Dae Won Lee, Young Woo Yun, Ki Jun Kim, Suk Hyon Yoon, Joon Kui Ahn, Dong Youn Seo, Eun Sun Kim
  • METHOD AND APPARATUS FOR PROTECTING A PRIMARY SERVICE IN WLAN SYSTEM
    Publication number: 20150327258
    Abstract: A method and an apparatus for protecting a primary service as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate are disclosed.
    Type: Application
    Filed: July 16, 2015
    Publication date: November 12, 2015
    Applicant: LG Electronics Inc.
    Inventors: Eun Sun KIM, Yong Ho SEOK
  • 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
  • COMMUNICATION METHOD IN WLAN SYSTEM
    Publication number: 20150305088
    Abstract: A communication method performed by a station (STA) in a Wireless Local Area Network (WLAN) system is provided. The method includes: broadcasting a Direct Link Setup (DLS) discovery request frame for discovering a destination STA with which a direct link will be set up; receiving a DLS discovery response frame from the destination STA in response to the DLS discovery request frame; setting up the direct link with the destination STA; and transmitting a data frame to an Access Point (AP). The step of transmitting the data frame comprises transmitting the data frame to the destination STA through the direct link. The data frame received by the destination STA is relayed to the AP.
    Type: Application
    Filed: June 30, 2015
    Publication date: October 22, 2015
    Inventors: Jong Hyun PARK, Eun Sun KIM, Yong Ho SEOK
  • ELECTRONIC INFORMATION LABEL, SERVER, AND METHOD OF TRANSMITTING CALL SIGNAL
    Publication number: 20150278898
    Abstract: An Electronic Information Label (EIL), a server, and a method of transmitting a call signal are provided. According to an exemplary embodiment, an EIL includes: a receiver configured to receive manipulation from a user; a detector configured to cause an interrupt signal by detecting the manipulation received in the receiver; and a call request transmitter configured to wake up in response to detection of the interrupt signal, and transmit a call request signal to a management server to request a call for a person in charge.
    Type: Application
    Filed: December 30, 2014
    Publication date: October 1, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Eun Sun KIM, Dong Sik YOON, Jong Gi RYU, Dae Yeol SEO, Tae Ha LEE, Ki Han HWANG
  • 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 OF CHANNEL ACCESS IN WIRELESS LOCAL AREA NETWORK AND APPARATUS FOR THE SAME
    Publication number: 20150250003
    Abstract: A method for channel access in a wireless local area network is provided. The method includes: transmitting, a plurality of Request To Send (RTS) frames over a plurality of subchannels to a receiver, each RTS frame being transmitted over each of the plurality of subchannels; receiving at least one Clear To Send (CTS) frame over at least one subchannel among the plurality of subchannels from the receiver; each CTS frame being transmitted over each of the at least one subchannel, transmitting a data unit to the receiver. The data unit includes at least one data frame. The at least one data frame is transmitted over at least one selected subchannel among the at least one subchannel, each data frame being transmitted over each selected subchannel.
    Type: Application
    Filed: August 7, 2012
    Publication date: September 3, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Yong Ho Seok, Jong Hyun Park, Eun Sun Kim
  • METHOD FOR RECEIVING ACK/NACK SIGNAL IN MOBILE COMMUNICATION SYSTEM
    Publication number: 20150244503
    Abstract: A method for transmitting information of resources for use in transmission of ACK/NACK signals in a mobile communication system is disclosed. An example method for receiving ACK/NACK signals in a mobile communication system is also disclosed. When resources for transmission of data and resources for transmission of control information of the data are scheduled through virtual unit resources, the method identifies information of resources for receiving an ACK/NACK signal for transmission data mapped to information of at least one of a virtual unit resource allocated to the transmission data and a virtual unit resource allocated to control information of the transmission data, and receives the ACK/NACK signal for the transmission data through the information of resources for receiving the ACK/NACK signal.
    Type: Application
    Filed: May 8, 2015
    Publication date: August 27, 2015
    Inventors: Dae Won LEE, Bong Hoe KIM, Young Woo YUN, Ki Jun KIM, Dong Wook ROH, Suk Hyon YOON, Joon Kui AHN, Dong Youn SEO, Hak Seong KIM, Jung Hoon LEE, Eun Sun KIM, Sung Duk CHOI
  • Method and apparatus for protecting a primary service in WLAN system
    Patent number: 9118450
    Abstract: A method and an apparatus for protecting a primary service as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate are disclosed.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: August 25, 2015
    Assignee: LG Electronics Inc.
    Inventors: Eun Sun Kim, Yong Ho Seok
  • Method and apparatus of scanning channels in wireless local area network
    Patent number: 9100937
    Abstract: A method and apparatus of scanning channels of a white space zone in a wireless local area network is provided. A beacon frame includes a white space map including information about whether each white space channel in the white space zone is occupied by an incumbent user. Channels of the white space zone are scanned based on the white space map.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: August 4, 2015
    Assignee: LG Electronics Inc.
    Inventors: Yong Ho Seok, Eun Sun Kim
  • Method and apparatus for transmitting reference signal for reducing intercell interference in multiple input multiple output communication system
    Patent number: 9100866
    Abstract: According to one embodiment, a method for receiving a Channel State Information-Reference Signal (CSI-RS) for measuring a channel includes: receiving CSI-RSs on resource elements (REs) in a subframe configured for the CSI-RSs from a base station, wherein if each CSI-RS of the received CSI-RSs is transmitted from each of four or more transmit antenna ports of the base station, at least two REs on which each CSI-RS is received are associated with each of the four or more transmit antenna ports; and transmitting channel state information based on the received CSI-RSs.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: August 4, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Eun Sun Kim, Ki Jun Kim, Hak Seong Kim, Han Byul Seo, Byoung Hoon Kim
  • METHOD FOR SCHEDULING DISTRIBUTED VIRTUAL RESOURCE BLOCKS
    Publication number: 20150208406
    Abstract: In a wireless mobile communication system, user equipment receives downlink data and downlink control information including resource allocation information for the downlink data from a base station. Downlink data is mapped to physical resource blocks (PRBs) based on the downlink control information. The resource allocation information indicates virtual resource block (VRB) allocations for the user equipment. Indexes of PRBs to which the downlink data are mapped are determined based on mapping relationship between VRBs and the PRBs. The mapping relationship is defined such that indexes of the VRBs are mapped to indexes of the PRBs for a first part and a second part of a subframe.
    Type: Application
    Filed: March 13, 2015
    Publication date: July 23, 2015
    Inventors: Dong Youn SEO, Eun Sun KIM, Bong Hoe KIM, Joon Kui AHN