Patents by Inventor Hyeon KWON

Hyeon KWON 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).

  • Patent number: 8477633
    Abstract: A method of allocating a radio resource for a relay station in a wireless communication system is disclosed. The method comprise allocating a relay zone to the relay station in a subframe and transmitting a relay control channel to the relay station by using the relay zone, wherein the subframe comprises a plurality of orthogonal frequency division multiplexing (OFDM) symbols in a time domain and a plurality of subcarriers in a frequency domain, wherein the subframe is divided into a user zone used by a user equipment in a cell and the relay zone used by the relay station, and wherein the relay zone comprises some of the plurality of subcarriers. According to the present invention, a subframe structure provides backward compatibility with a legacy wireless communication system. A relay station can effectively find a radio resource allocated to the relay station, thereby decreasing a decoding time.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: July 2, 2013
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Sung Ho Moon, So Yeon Kim, Jae Hoon Chung, Min Seok Noh, Yeong Hyeon Kwon, Hyun Soo Ko, Seung Hee Han, Moon Il Lee
  • Patent number: 8472539
    Abstract: A method of transmitting power information in a wireless communication system is provided. The method includes: determining energy per resource element (RE) to which a reference signal or data is mapped for downlink transmission; and transmitting power information of the reference signal and the data, wherein the reference signal comprises a channel state indication-reference signal (CSI-RS) for channel state measurement, power information of the CSI-RS is denoted by a ratio of power for a CSI-RS RE and power for a data RE of an orthogonal frequency division multiplexing (OFDM) symbol on which only data is transmitted or power for a cell-specific RS (CRS) RE used for channel state measurement and data demodulation of different OFDM symbols.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: June 25, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hyunsoo Ko, Moon Il Lee, Jae Hoon Chung, Bin Chul Ihm, Yeong Hyeon Kwon
  • Patent number: 8472464
    Abstract: Provided are a method of information transmission performed by a transmitter in a wireless transmission system and an apparatus for same.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: June 25, 2013
    Assignee: LG Electronics Inc.
    Inventors: Seung Hee Han, Sung Ho Moon, Hyun Soo Ko, Jae Hoon Chung, Moon Il Lee, Yeong Hyeon Kwon
  • Publication number: 20130156337
    Abstract: A method for removing noise of an image. The method includes: (a) detecting a horizontal edge by applying a horizontal edge detection filter to a predetermined pixel field including a notice pixel and neighboring pixel in a vertical direction in image data; (b) judging whether horizontal line noise exists in the predetermined pixel field through the horizontal edge; (c) calculating the number of pixels determined as the horizontal line noise for each horizontal line of the image data by applying steps (a) and (b) to all horizontal lines of the image data; and (d) removing the horizontal line noise by applying a low pass filter to the horizontal line judged to have the horizontal line noise according to the calculation result of step (c).
    Type: Application
    Filed: March 14, 2012
    Publication date: June 20, 2013
    Inventors: Tae Hyeon Kwon, In Taek Song, Kyoung Joong Min
  • Patent number: 8467344
    Abstract: This is provided a method for allocating pilots to a sub-frame. The sub-frame includes a plurality of blocks in time domain. The method includes allocating a data demodulation (DM) pilot used for demodulating data to two blocks spaced not contiguous with each other, and allocating a channel quality (CQ) pilot. System capacity can be increased, and degradation of performance incurred by a channel estimation error can be minimized.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 18, 2013
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Seung Hee Han, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Chul Kim
  • Patent number: 8467736
    Abstract: The present invention relates to a method for synchronizing multiple cells, which perform cooperative multi-input multi-output operations, as well as to a method for inter-cell synchronization in a multi-cell environment, comprising the steps of: measuring a propagation delay of a cooperative base station; transmitting the measured propagation delay to a serving base station; and receiving data for cooperative multi-input multi-output operations in which a transmission location is adjusted, on the basis of the propagation delay of the cooperative base station, when the serving base station transmits the propagation delay to the cooperative base station.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: June 18, 2013
    Assignee: LG Electronics Inc.
    Inventors: Ja-Ho Koo, Yeong-Hyeon Kwon, Jae-Hoon Chung, Bin-Chul Ihm, Hyun-Soo Ko
  • Patent number: 8462672
    Abstract: The present invention provides a method of performing communication using a TDD (Time Division Duplex) mode, the method comprising receiving, from a second system, TDD frame configuration information of the second system, which comprises information on punctured symbol, the information on punctured symbol to be obtained based on TDD frame configuration information of a first system and operating based on the received TDD frame configuration information of the second system.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: June 11, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Min Seok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Sung Ho Moon, Seung Hee Han, Hyun Woo Lee
  • Patent number: 8462740
    Abstract: A control channel generation method, a control channel decoding method, and a BS and an MS for implementing the methods are provided. The control channel generation method includes placing a frame control header (FCH) and a MAP within a TTI and generating a control channel for an enhanced communication system at a position after the MAP within the TTI. Another control channel generation method includes generating a control channel for the enhanced communication system and placing an FCH and a preamble at a position after the control channel. These methods enable implementation of an enhanced system that overcomes problems of the legacy system while minimizing influence exerted upon legacy MSs in the case where the base station generates a new control channel for a new MS or where an MS decodes a new control channel.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: June 11, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Sam Kwak, Yeong Hyeon Kwon, Seung Hee Han, Hyun Woo Lee, Dong Cheol Kim, Min Seok Noh
  • Patent number: 8463262
    Abstract: A method of receiving a control signal by a user equipment in a wireless communication system is disclosed. The present invention includes receiving control regions including the control channel relevant to each of a plurality of component carriers via a plurality of component carriers and detecting the control channel for the user equipment by performing blind decoding by a unit of CCE (control channel element) aggregated at a preset level in a search space included in the control regions. And, start positions of the search spaces in the plurality of component carriers is in a certain relationship. Moreover, the preset level is identically set for each of the plurality of component carriers.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: June 11, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, So Yeon Kim, Jae Hoon Chung, Hyun Woo Lee, Seung Hee Han
  • Patent number: 8457566
    Abstract: A method of transmitting a preamble for synchronization in a multiple-antenna system includes applying a masking sequence to a plurality of preambles, and transmitting each of the plurality of preambles, to which the masking sequence is applied, through each of a plurality of transmit antennas. In a multiple-antenna system, deterioration of reception performance for a preamble can be reduced.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: June 4, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Min Seok Noh, Jin Sam Kwak, Dong Cheol Kim, Sung Ho Moon, Seung Hee Han, Hyun Woo Lee
  • Patent number: 8457101
    Abstract: A method for transmitting a preamble in a scalable bandwidth system is disclosed. The method includes transmitting a primary synchronization channel to which symbols are allocated at intervals of two or more subcarriers, through a specific bandwidth out of an entire system bandwidth at a start time point of a synchronization period, and transmitting a secondary synchronization channel through the specific bandwidth with a prescribed time difference from the primary synchronization channel at the synchronization period. A mobile station can use the same search routine irrespective of a system bandwidth, does not experience any difficulty at a cell edge in establishing signal timing synchronization, can simply perform preamble search, and can transmit a signal in a maximum usable bandwidth, thereby improving the accuracy of location measurement.
    Type: Grant
    Filed: January 2, 2009
    Date of Patent: June 4, 2013
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Dong Cheol Kim, Sung Ho Moon, Seung Hee Han, Hyun Woo Lee
  • Patent number: 8446867
    Abstract: A method of controlling uplink power in a wireless communication system includes receiving a power control offset with respect to a data burst including user data from a base station, receiving a power control offset with respect to a control burst including control information from the base station, and controlling transmission power of the data burst and transmission power of the control burst according to the power control offset with respect to the data burst and the power control offset with respect to the control burst.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: May 21, 2013
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Seung Hee Han, Min Seok Noh, Jin Sam Kwak, Yeong Hyeon Kwon, Hyun Woo Lee
  • Patent number: 8446873
    Abstract: A method for uplink transmitting control information in a mobile communication system is disclosed. A method for uplink transmitting control information in a mobile communication system includes receiving control channel configuration information for indicating a first period about a time interval in which a control channel is repeatedly allocated and a second period about a time interval in which the control channel is repeatedly allocated in accordance with the first period, generating a control channel at a predetermined position in a time-frequency resource region for uplink transmission in consideration of the first period and the second period, and transmitting control information through the generated control channel.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: May 21, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Min Seok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Dong Cheol Kim, Sung Ho Moon, Seung Hee Han
  • Patent number: 8441996
    Abstract: A method and apparatus of monitoring a control channel in a multiple carrier system is provided. A user equipment monitors a plurality of candidate control channels within a control region of a subframe and receives reference control information on a reference control channel which is successfully decoded. The user equipment monitors the control region on a basis of the reference control information and receives link control information on a linked control channel which is successfully decoded. The link control information includes resource assignment information used to receive or transmit data packets via a plurality of component carriers.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: May 14, 2013
    Assignee: LG Electronics Inc.
    Inventors: So Yeon Kim, Jae Hoon Chung, Yeong Hyeon Kwon, Seunghee Han
  • Patent number: 8437301
    Abstract: A method of allocating control information in a wireless communication system is provided. The method includes: allocating essential control information of a first system to a first sub-frame in a frame including a plurality of sub-frames each of which comprises a plurality of orthogonal frequency-division multiplexing (OFDM) symbols; and allocating essential control information of a second system to an nth sub-frame in a fixed position from the first sub-frame (where n is an integer satisfying n>1). Accordingly, in a frame supporting heterogeneous systems, essential control information can be fixedly allocated to a specific position while maintaining the number of system switching points, at which switching occurs between the systems, to one even if a radio resource allocation amount changes between the systems, and thus the essential control information that must be received by all user equipments can be effectively provided without the increase of overhead.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: May 7, 2013
    Assignee: LG Electronics Inc.
    Inventors: Sung Ho Moon, Minseok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Dong Cheol Kim, Seung Hee Han, Hyun Woo Lee
  • Patent number: 8432838
    Abstract: Disclosed in a method for establishing a time domain structure of a frame in a heterogeneous TDD systems environment. In other words, in a situation of coexisting heterogeneous systems comprising a first system corresponding to an existing TDD system and a second system corresponding to a new system, a method is provided for establishing a time domain structure of a second frame for the second TDD system mode to enable it to coexist with a first frame for the first TDD (Time Division Duplex) system mode, that comprises obtaining information for the first supported system type and a first ratio between the downlink region and the uplink region of the first frame structure, and then, according to the obtained information, establishing a second ratio between the downlink region and the uplink region of the second frame structure for the second system. Further, particular numerology is provided for said method.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: April 30, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Sam Kwak, Min Seok Noh, Dong Cheol Kim, Sung Ho Moon, Seung Hee Han, Hyun Woo Lee, Yeong Hyeon Kwon
  • Patent number: 8422427
    Abstract: A segmented access based signal transmitting/receiving method and a sequence allocating method for the same are disclosed. According to one embodiment of the present invention, a method of transmitting a signal of a user equipment in a communication system includes selecting a channel in accordance with at least one selected from the group consisting of a signal attenuation extent of a downlink signal to the user equipment and a speed of the user equipment from channels differently provided based on at least one selected from the group consisting of the signal attenuation extent of the downlink signal and the speed of the user equipment and transmitting the signal using the selected channel.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: April 16, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Seung Hee Han, Hyun Hwa Park, Dong Cheol Kim, Hyun Woo Lee, Min Seok Noh, Dragan Vujcic
  • Patent number: 8422451
    Abstract: A method for generating an iterative sequence and a signal transmission method using the same are disclosed. As the cell size or the distance between a user equipment (UE) and a Node-B increases, the CP is repeated at least one time while the iterative sequence is generated, the CP length and the ZCZ length are adjusted, so that the sequence timing point can be easily detected, orthogonality between sequences is maintained, and the sequences can be clearly distinguished from each other.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: April 16, 2013
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Seung Hee Han, Yeong Hyeon Kwon, Hyun Hwa Park, Hyun Woo Lee, Dong Cheol Kim
  • Patent number: 8416815
    Abstract: A method and device for transmitting uplink control signals in a wireless communication system, the method including: reserving a preassigned scheduling request (SR) physical uplink control channel (PUCCH) resource used for transmission of a SR; determining a frequency domain sequence and an orthogonal sequence based on the preassigned SR PUCCH resource; spreading an ACK/NACK for Hybrid Automatic Repeat Request (HARQ) with the frequency domain sequence and the orthogonal sequence to generate a mapped sequence; and transmitting the mapped sequence.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: April 9, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jin Sam Kwak, Hong Won Park, Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim, Jae Hoon Chung
  • Publication number: 20130084005
    Abstract: The present invention relates to an image processing device and a method for processing an image. The image processing device includes a brightness improvement unit to improve a brightness of inputted images by increasing a brightness of a dark image more darker than a knee point among inputted images with reference to a predetermined knee point and decreasing a brightness of an image more brighter than the knee point; and a contrast improvement unit to improve a contrast of the image outputted from the brightness improvement unit. The image processing device and the method for processing the image can reduce a distortion phenomenon and a saturation phenomenon or the like by reflecting the characteristics of images during the brightness improvement and contrast improvement of the images.
    Type: Application
    Filed: September 6, 2012
    Publication date: April 4, 2013
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Kyoung Joong MIN, In Taek Song, Tae Hyeon Kwon