Patents by Inventor Su-Hwan Lim

Su-Hwan Lim 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).

  • Publication number: 20150230240
    Abstract: There is provided a method of transmitting an uplink for reference sensitivity test for intra-band non-contiguous CA in LTE-A system. The method may comprise: if a carrier aggregation (CA) is configured, if the configured CA corresponds to an intra-band CA, and if the configured CA corresponds to non-contiguous CA, transmitting an uplink on a primary component carrier using allocated resource blocks (RBs). if a channel bandwidth by an aggregation of the primary component carrier and a secondary component carrier is at least one of 25 RBs, 50 RBs, 75 RBs and 100 RBs and if a gap between two sub-blocks corresponds to a predetermined range, the number of the allocated resource block (RB) in the primary component carrier may be limited to 10 to meet a requirement for a reference sensitivity on a downlink of the secondary component carrier.
    Type: Application
    Filed: April 21, 2015
    Publication date: August 13, 2015
    Applicant: LG ELECTRONICS INC.
    Inventors: Su Hwan LIM, Young Woong KIM, Young Goo PARK, Sang Wook LEE, Dong Ik LEE
  • Patent number: 9100781
    Abstract: Provided are a method and an apparatus for transmitting a message through a terminal in a wireless communication system. The terminal receives positioning reference signals (PRS) from a reference cell and at least one of the neighbor cells, receives an auxiliary data provision message including a reference cell PRS muting sequence for indicating a muting pattern of the PRS transmitted through the reference cell and a neighbor cell PRS muting sequence for indicating the muting pattern of the PRS transmitted through at least one of the neighbor cells from an enhanced serving mobile location center (E-SMLC), and transmits a reference signal time difference (RSTD) measured on the basis of the PRS received from the reference cell and the at least one of the neighbor cells to the E-SMLC.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: August 4, 2015
    Assignee: LG ELECTRONICS INC.
    Inventors: Kyung Soo Woo, Su Hwan Lim, Chi Jun Ahn, Dae Won Lee, Suk Hyon Yoon, Seung Hee Han
  • Publication number: 20150171133
    Abstract: An age sensor including a transfer gate formed on a substrate, a photoelectric conversion region formed on a side of the transfer gate, a floating diffusion region with a trench formed on another side of the transfer gate, a barrier layer which covers a bottom of the trench and a conducting layer, which is gap-filled in the trench.
    Type: Application
    Filed: June 10, 2014
    Publication date: June 18, 2015
    Inventors: Do-Hwan KIM, Yun-Hee YANG, Dae-Woo KIM, Jong-Chae KIM, Su-Hwan LIM
  • Patent number: 9001727
    Abstract: A wireless communication system that includes a relay node is disclosed. The relay node supporting carrier aggregation (CA) comprises a first antenna for performing communication with a base station through a backhaul link; a plurality of backhaul link radio frequency (RF) chains connected with the first antenna, for transmitting and receiving a radio signal for backhaul link transmission; a second antenna for performing communication with a user equipment through an access link; a plurality of access link RF units connected with the second antenna, for transmitting and receiving a radio signal for access link transmission; and a control unit controlling the plurality of backhaul link RF chains and the plurality of access link RF chains to share at least a part of RF components between the backhaul link RF chains and the access link RF chains.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: April 7, 2015
    Assignee: LG Electronics Inc.
    Inventors: Yoon Oh Yang, Su Hwan Lim, Man Young Jung, Sang Wook Lee
  • Publication number: 20150031409
    Abstract: The present invention relates to a method for controlling uplink transmission power and to a wireless device using same in a wireless communication system. The wireless device receives determines uplink transmission power in consideration of the overlap period between subframes between a first serving cell belonging to a first timing advance (TA) group and a second serving cell belonging to the second TA group, and transmits an uplink channel on the basis of the uplink transmission power.
    Type: Application
    Filed: January 29, 2013
    Publication date: January 29, 2015
    Inventors: Joon Kui Ahn, Su Hwan Lim, Suck Chel Yang, Dong Youn Seo
  • Publication number: 20150021604
    Abstract: A CMOS image sensor includes an active pixel structure suitable for sensing light incident from outside and converting a sensed light into an electrical signal, and an optical block structure suitable for blocking a visible light and passing a UV light to check and evaluate an electrical characteristic of the active pixel area. The UV pass filter includes first and second insulation layers comprising an insulator, and a metal layer formed between the first and second insulation layers.
    Type: Application
    Filed: September 30, 2013
    Publication date: January 22, 2015
    Applicants: POSTECH ACADEMY-INDUSTRY FOUNDATION, SK hynix Inc.
    Inventors: Do Hwan KIM, Su Hwan LIM, Hae Wook HAN, Young Woong DO, Won Jun LEE
  • Patent number: 8937342
    Abstract: A CMOS image sensor includes an active pixel structure suitable for sensing light incident from outside and converting a sensed light into an electrical signal, and an optical block structure suitable for blocking a visible light and passing a UV light to check and evaluate an electrical characteristic of the active pixel area. The UV pass filter includes first and second insulation layers comprising an insulator, and a metal layer formed between the first and second insulation layers.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: January 20, 2015
    Assignees: SK Hynix Inc., Postech Academy-Industry Foundation
    Inventors: Do Hwan Kim, Su Hwan Lim, Hae Wook Han, Young Woong Do, Won Jun Lee
  • Patent number: 8914058
    Abstract: A method is disclosed for, at a base station (BS), controlling transmit power of a user equipment (UE) in a wireless communication system. This includes checking BS-specific maximum transmit power information, applying Additive-Maximum Power Reduction (A-MPR) corresponding to a legacy UE to the BS-specific maximum transmit power so as to generate BS-specific maximum transmit power information for the legacy UE, and broadcasting the BS-specific maximum transmit power information for the legacy UE.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: December 16, 2014
    Assignee: LG Electronics Inc.
    Inventors: In Kwon Seo, Su Hwan Lim, Yoon Oh Yang, Sang Wook Lee
  • Patent number: 8811351
    Abstract: The present invention relates to a method for measuring channel quality information in a system transmitting a signal via a plurality of component carriers. The method comprises the steps of: measuring a channel quality value of at least one component carrier allocated to a terminal from among a plurality of component carriers used to transmit a signal from a serving cell, to which the terminal belongs, to the terminal; comparing the channel quality value with a critical value for determining whether or not a channel quality of a component carrier not allocated to the terminal from among the plurality of component carriers must be derived; and, if the channel quality value is less than the critical value, measuring a channel quality value of a component not allocated to the terminal from among the plurality of component carriers.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: August 19, 2014
    Assignee: LG Electronics Inc.
    Inventors: In Jae Jung, In Kwon Seo, Sang Wook Lee, Su Hwan Lim
  • Publication number: 20140204867
    Abstract: There is provided a method of transmitting an uplink for reference sensitivity test for intra-band non-contiguous CA in LTE-A system. The method may comprise: if a carrier aggregation (CA) is configured, if the configured CA corresponds to an intra-band CA, and if the configured CA corresponds to non-contiguous CA, transmitting an uplink on a primary component carrier using allocated resource blocks (RBs). if a channel bandwidth by an aggregation of the primary component carrier and a secondary component carrier is at least one of 25 RBs, 50 RBs, 75 RBs and 100 RBs and if a gap between two sub-blocks corresponds to a predetermined range, the number of the allocated resource block (RB) in the primary component carrier may be limited to 10 to meet a requirement for a reference sensitivity on a downlink of the secondary component carrier.
    Type: Application
    Filed: January 21, 2014
    Publication date: July 24, 2014
    Applicant: LG ELECTRONICS INC.
    Inventors: Su Hwan LIM, Young Woong KIM, Young Goo PARK, Sang Wook LEE, Dong Ik LEE
  • Publication number: 20140204850
    Abstract: Disclosed is a method for wireless communication on heterogeneous networks. The method includes receiving, by a user equipment (UE), wireless local area network (WLAN) access information from a base station, performing, by the UE, an initial channel access to an access point (AP) based on the WLAN access information, wherein the WLAN access information includes beacon information to receive a beacon frame from the AP, identity information indicating an identifier of the AP and measurement information indicating a measurement configuration of the UE.
    Type: Application
    Filed: December 5, 2013
    Publication date: July 24, 2014
    Applicant: LG Electronics Inc.
    Inventors: Bong Hoe Kim, Dong Youn Seo, Su Hwan Lim, Joon Kui Ahn
  • Patent number: 8743754
    Abstract: The present invention is directed to a wireless communication system, more specifically, a transmitter used for wireless communication and a method for the same. The transmitter used for wireless communication comprises a plurality of transmitting antennas; a plurality of radio frequency (RF) chains configured for each of the transmitting antennas; a signal generator generating one or more transmitting signals at a base band; and an RF switch mapping the one or more transmitting signals into the plurality of RF chains.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: June 3, 2014
    Assignee: LG Electronics Inc.
    Inventors: Man Young Jung, Su Hwan Lim, Yoon Oh Yang, Sang Wook Lee
  • Patent number: 8743817
    Abstract: A radio communication system is disclosed. The method for transmitting a signal by a user equipment in a radio communication system includes generating a plurality of uplink signals, reducing maximum transmit power of the user equipment in consideration of a signal configuration for the plurality of uplink signals, and transmitting the plurality of uplink signals to a network within the range of the reduced maximum transmit power of the user equipment.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: June 3, 2014
    Assignee: LG Electronics Inc.
    Inventors: Sang Wook Lee, Man Young Jung, Su Hwan Lim, Yoon Oh Yang
  • Publication number: 20140092842
    Abstract: A method includes transmitting a random access preamble, receiving a random access response as a response of the random access preamble, wherein the random access response comprises an uplink resource assignment and a request for transmission of a Channel Quality Indicator (CQI), and transmitting the CQI in the uplink resource assignment.
    Type: Application
    Filed: December 3, 2013
    Publication date: April 3, 2014
    Applicant: LG Electronics Inc.
    Inventors: Seung Jin Ahn, Woo Seong Kim, Mu Ryong Kim, Seung Woo Nam, Dae Won Lee, Kwang II Kim, Su Hwan Lim
  • Publication number: 20140044063
    Abstract: There is provided a method of reducing transmission power. The method may comprise: receiving a network signal, if a carrier aggregation (CA) is configured and if the configured CA corresponds to an intra-band contiguous CA; applying an additional maximum power reduction (A-MPR) for a transmission, based on the network signal. If a configuration of the CA corresponds to a CA_1C and if the aggregated transmission bandwidth is the summation of 75 RBs and 75 RBs, a value of the A-MPR is specified for L_CRB>10. The L_CRB is a length of a contiguous resource block allocation.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 13, 2014
    Applicant: LG Electronics Inc.
    Inventors: Su Hwan LIM, Sang Wook LEE, Jin Yup HWANG, Man Young JUNG, Yoon Oh YANG
  • Patent number: 8630653
    Abstract: A method includes transmitting a random access preamble, receiving a random access response as a response of the random access preamble, wherein the random access response comprises an uplink resource assignment and a request for transmission of a Channel Quality Indicator (CQI), and transmitting the CQI in the uplink resource assignment.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: January 14, 2014
    Assignee: LG Electronics Inc.
    Inventors: Seung Jin Ahn, Woo Seong Kim, Mu Ryong Kim, Seung Woo Nam, Dae Won Lee, Kwang Il Kim, Su Hwan Lim
  • Patent number: 8600395
    Abstract: A method of configuring a radio connection in a multiple cell system is provided. The method includes configuring a first radio connection between a user equipment (UE) and a primary base station (BS) and a second radio connection between the UE and a secondary BS based on a cooperative transmission configuration in which a plurality of BSs transmit the same data to the UE, receiving first channel state regarding the first radio connection and second channel state regarding the second radio connection from the UE, releasing at least one radio connection of the first radio connection and the second radio connection, the at least one radio connection having a worse channel state than a threshold, transmitting to the UE, a new cooperative transmission configuration changed by the release of the at least one radio connection, and receiving a layer reconfiguration complete message indicating completion of layer reconfiguration based on the new cooperative transmission configuration.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: December 3, 2013
    Assignee: LG Electronics Inc.
    Inventors: Su Hwan Lim, Sang Wook Lee, In Jae Jung, In Kwon Seo, Bong Hoe Kim
  • Publication number: 20130122930
    Abstract: Provided are a method and an apparatus for transmitting a message through a terminal in a wireless communication system. The terminal receives positioning reference signals (PRS) from a reference cell and at least one of the neighbor cells, receives an auxiliary data provision message including a reference cell PRS muting sequence for indicating a muting pattern of the PRS transmitted through the reference cell and a neighbor cell PRS muting sequence for indicating the muting pattern of the PRS transmitted through at least one of the neighbor cells from an enhanced serving mobile location center (E-SMLC), and transmits a reference signal time difference (RSTD) measured on the basis of the PRS received from the reference cell and the at least one of the neighbor cells to the E-SMLC.
    Type: Application
    Filed: July 18, 2011
    Publication date: May 16, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyung Soo Woo, Su Hwan Lim, Chi Jun Ahn, Dae Won Lee, Suk Hyon Yoon, Seung Hee Han
  • Publication number: 20130039289
    Abstract: A radio communication system is disclosed. The method for transmitting a signal by a user equipment in a radio communication system includes generating a plurality of uplink signals, reducing maximum transmit power of the user equipment in consideration of a signal configuration for the plurality of uplink signals, and transmitting the plurality of uplink signals to a network within the range of the reduced maximum transmit power of the user equipment.
    Type: Application
    Filed: November 24, 2010
    Publication date: February 14, 2013
    Inventors: Sang Wook Lee, Man Young Jung, Su Hwan Lim, Yoon Oh Yang
  • Publication number: 20120320818
    Abstract: A wireless communication system that includes a relay node is disclosed. The relay node supporting carrier aggregation (CA) comprises a first antenna for performing communication with a base station through a backhaul link; a plurality of backhaul link radio frequency (RF) chains connected with the first antenna, for transmitting and receiving a radio signal for backhaul link transmission; a second antenna for performing communication with a user equipment through an access link; a plurality of access link RF units connected with the second antenna, for transmitting and receiving a radio signal for access link transmission; and a control unit controlling the plurality of backhaul link RF chains and the plurality of access link RF chains to share at least a part of RF components between the backhaul link RF chains and the access link RF chains.
    Type: Application
    Filed: November 1, 2010
    Publication date: December 20, 2012
    Inventors: Yoon Oh Yang, Su Hwan Lim, Man Young Jung, Sang Wook Lee