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).

  • Publication number: 20130028219
    Abstract: Embodiments of the present invention provide methods for providing competition uplink channels while minimizing the frequency of blind decoding operations of a terminal, and devices of supporting the methods. An uplink signal transmission method via a competition-based uplink (CB UL) channel according to one embodiment of the present invention comprises: receiving the configuration information on the CB UL channel from a base station; receiving resource information from the base station, the resource information containing at last one of the following: information on usage time of the CB UL channel, information on activation and deactivation of the CB UL channel and information on cancellation; and inspecting the validity of the resource information. If the resource information is not valid, the resource information is individually allocated to each subframe; if the resource information is valid, the resource information can be periodically and continuously allocated.
    Type: Application
    Filed: April 20, 2011
    Publication date: January 31, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Hyun Woo Lee, Ji Woong Jang, Yeong Hyeon Kwon
  • Patent number: 8363692
    Abstract: A method for generating a set of at least two sequences is provided. This method selects at least one sequence from each of at least two sequences based on different lengths, including first and second types of sequences, and generates a set of at least two sequences using the selected sequences. Another method selects at least one sequence from a first type of sequences and at least one sequence from a second type of sequences generated by modulating the first type of sequences using a different type of sequences, and generates the set of at least two sequences using the selected sequences. To generate sequences based on a length corresponding to available subcarriers excluding a DC subcarrier, another method generates sequences such that the sequences are continuously arranged in a region excluding the DC subcarrier using frequency-domain cyclic shift while none of the sequences is allocated to the DC subcarrier.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: January 29, 2013
    Assignee: LG Electronics Inc.
    Inventors: Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim, Jin Sam Kwak
  • Publication number: 20130022012
    Abstract: The present invention relates to methods for transceiving a contention-based uplink channel signal, and apparatuses for supporting the same. According to one embodiment of the present invention, a method for transmitting first uplink data through a contention-based uplink channel comprises the steps of: receiving, by a terminal, an uplink grant (CB UL Grant) message from a base station (BS), the uplink grant message including allocation information on the contention-based uplink channel; and transmitting the first uplink data, which is distinguished from second uplink data transmitted through the contention-based uplink channel by another terminal, through the contention-based uplink channel to the base station.
    Type: Application
    Filed: April 11, 2011
    Publication date: January 24, 2013
    Inventors: Hyun Woo Lee, Ji Woong Jang, Yeong Hyeon Kwon
  • Publication number: 20130022017
    Abstract: The present invention relates to a wireless communication system. More specifically, the present invention relates to a method for transmitting control information through a PUCCH in a wireless communication system and an apparatus for same comprising the steps of: obtaining a plurality of second modulation symbol streams corresponding to a plurality of SC-FDMA (Single Carrier Frequency Division Multiplexing) symbols by diffusing a plurality of first modulation symbol streams to form the first modulation symbol streams corresponding to the SC-FDMA symbols within a first slot; obtaining a plurality of complex symbol streams by performing a DFT (Discrete Fourier Transform) pre-coding process for the plurality of second modulation symbol streams; and transmitting the plurality of complex symbol streams through the PUCCH wherein the plurality of second modulation symbol streams are scrambled in a SC-FDMA symbol level.
    Type: Application
    Filed: April 4, 2011
    Publication date: January 24, 2013
    Applicant: L G ELECTRONICS INC.
    Inventors: Seung Hee Han, Sung Ho Moon, Jae Hoon Chung, Moon II Lee, Yeong Hyeon Kwon
  • Publication number: 20130021984
    Abstract: A method for wireless communication supporting uplink and downlink multi carriers Includes performing initial access through one of at least two downlink component carriers among multiple downlink component carriers including the at least two downlink component carriers through which the user equipment is allowed to perform the initial access; and transmitting via an uplink component carrier allocated to the user equipment by using a carrier identifier, wherein the carrier identifier is applied to the uplink component carrier and is obtained from the downlink component carrier through which the initial access is performed, and wherein the system pre-defines one-to-one correspondence between multiple downlink component carriers and multiple uplink component carriers, and wherein the downlink component carrier through which the initial access is performed and the uplink component carriers allocated to the user equipment do not match the one-to-one correspondence pre-defined by the system.
    Type: Application
    Filed: August 16, 2010
    Publication date: January 24, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Seung Hee Han, Sung Ho Moon, Jae Hoon Chung, So Yeon Kim, Yeong Hyeon Kwon
  • Patent number: 8359059
    Abstract: A method of controlling uplink power in a wireless communication system includes receiving a power control message including parameters for uplink power control from a base station, and controlling uplink power based on the power control message, wherein the uplink power is determined according to a target SINR (Signal to Interference plus Noise Ratio), the target SINR is determined by a minimum rate SINR required at the base station and a control factor for noise and interference. Transmission power of signal can be more accurately controlled and an influence of an inter-cell interference or a path loss can be reduced to thus improve quality of service of the wireless communication system.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: January 22, 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: 8358585
    Abstract: A method for transmitting and receiving channel state information (CSI) periodically and aperiodically is disclosed. The method for aperiodically transmitting channel state information (CSI) by a terminal includes receiving an indicator requesting a channel state information report of a downlink channel from a base station over a downlink control channel, and aperiodically transmitting the channel state information (CSI) to the base station over a physical uplink shared channel (PUSCH) upon receiving the indicator from the base station.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: January 22, 2013
    Assignee: LG Electronics Inc.
    Inventors: Jae Hoon Chung, Moon Il Lee, Yeong Hyeon Kwon, Hyun Soo Ko
  • Publication number: 20130010881
    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: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: LG ELECTRONICS INC.
    Inventors: Min Seok NOH, Seung Hee HAN, Yeong Hyeon KWON, Hyun Woo LEE, Dong Chul KIM
  • Publication number: 20130010724
    Abstract: The present invention relates to a wireless communication system. In particular, the present invention relates to a method for handling physical downlink control channels (PDCCHs) in a user equipment, the method comprising: receiving a plurality of control channel elements (CCEs) from a base station; performing blind decoding of the plurality of CCEs in CCE aggregation units; and identifying a CCE aggregation level used for the PDCCH transmission, on the basis of the blinding decoding result, wherein the CCE aggregation level is relevant resource mapping of the control information included in the PDCCH.
    Type: Application
    Filed: February 1, 2011
    Publication date: January 10, 2013
    Inventors: Seung Hee Han, Yeong Hyeon Kwon, Jae Hoon Chung, Moon Il Lee
  • Patent number: 8352825
    Abstract: A method for packet retransmission employing feedback information is disclosed. The method for packet retransmission employing feedback information comprises receiving reception acknowledgement information from a receiver after a transmitter transmits packets, the reception acknowledgement information representing channel status information and decoding success/failure of the packets; and changing a retransmission mode in accordance with the channel status information if the reception acknowledgement information represents decoding failure, and transmitting retransmission packets of the packets in accordance with the changed retransmission mode. Thus, it is possible to improve decoding probability of the receiver and increase efficiency of retransmission.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: January 8, 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: 8351347
    Abstract: Disclosed is a method for transmitting a sounding reference signal from to a base station in a radio communication system. More specifically, the method comprises the steps of: transmitting a periodic sounding reference signal to a base station; receiving a transmission instruction for an additional sounding reference signal from the base station; multiplexing said periodic sounding reference signal and said additional sounding reference signal along a frequency axis or a time axis; and transmitting said multiplexed periodic sounding reference signal and said additional sounding reference signal to said base station. Said multiplexing step is characterized by multiplexing said periodic sounding reference signal and said additional sounding reference signal along a frequency axis or a time axis.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: January 8, 2013
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Jae Hoon Chung, Yeong Hyeon Kwon
  • Patent number: 8351413
    Abstract: A method and apparatus of generating a ranging signal in a wireless communication system is provided. A mobile station (MS) generates a ranging code in which a covering code has been applied to each of a plurality of orthogonal frequency division multiple access (OFDMA) symbols, and maps the ranging code to a plurality of subcarriers constituting each of the OFDMA symbols. The ranging signal is generated by performing OFDMA modulation on each of the OFDMA symbols.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: January 8, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Han Gyu Cho, Jin Sam Kwak, Yeong Hyeon Kwon
  • Publication number: 20130003675
    Abstract: A method for generating/transmitting a transmission-unit symbol sequence is disclosed. In the case of transmission information, the information is modulated in time and frequency domains on the basis of a predetermined transmission unit (e.g., a transmission time interval TTI or slot), simultaneous transmission of the information is made, and then a transmission unit symbol is generated/transmitted. A transmission sequence is masked in each symbol contained in one transmission unit. Symbol-unit circular shift (cyclic shift) is applied to the masked result, so that transmission efficiency increases. A control signal transmission method for supporting a variety of formats and a signal transmission method based on a prime-length sequence are also provided.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 3, 2013
    Inventors: Seung Hee HAN, Min Seok NOH, Yeong Hyeon KWON, Hyun Woo LEE, Dong Cheol KIM, Jin Sam KWAK
  • Patent number: 8345571
    Abstract: A method for transmitting channel information and a mobile communication terminal are disclosed. The method for transmitting channel information includes requesting, by a mobile station (MS) through a random access channel (RACH), a base station (BS) to allocate a resource for transmitting channel information, if it is determined that transmission of a channel status of a downlink channel is necessary as a result of monitoring the channel status, and transmitting, from the MS through the RACH to the BS, the channel information which is updated according to the channel status if the resource allocation is completed. Therefore an existing control channel can be efficiently used, without adding a new control channel for channel quality identifier (CQI) transmission by a mobile station or modifying the configuration of a transmitting stage. Further, signal interference for the existing channels can be prevented when generating a scheduling request.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: January 1, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Seung Hee Han, Hyun Woo Lee, Jin Sam Kwak, Dong Cheol Kim, Min Seok Noh
  • Patent number: 8345792
    Abstract: A method of transmitting data in a wireless communication system includes mapping first data to first symbols on a signal constellation, mapping second data assisting the first data to second symbols on the signal constellation, modulating the first symbols and the second symbols, and transmitting the modulated first symbols and the second symbols, wherein the distance between the first symbols is longer than that between the second symbols on the signal constellation.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: January 1, 2013
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Seung Hee Han, Hyun Woo Lee, Jin Sam Kwak, Dong Cheol Kim, Min Seok Noh
  • Patent number: 8345535
    Abstract: A method and apparatus of generating a ranging preamble code in a wireless communication system is provided. A mobile station (MS) generates one of a plurality of ranging preamble codes, wherein the plurality of ranging preamble codes are based on a padded Zadoff-Chu (ZC) sequence to which a cyclic shift is applied in a unit of NCS, where NCS is a function of a cyclic prefix (CP) length in a time domain.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: January 1, 2013
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Yeong Hyeon Kwon, Han Gyu Cho, Jin Sam Kwak, Min Seok Noh
  • Patent number: 8345621
    Abstract: A method and apparatus of transmitting signals for segmented access in a communication system is disclosed. The method for transmitting signals from a user equipment in a communication system includes the steps of selecting a predetermined channel structure depending on location of the user equipment among available channels defined differently depending on the location of the user equipment within a cell, and transmitting signals using the selected channel structure. Also, a method for transmitting signals using sequences allocated differently depending on location of a user equipment within a cell is disclosed.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: January 1, 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
  • Publication number: 20120327875
    Abstract: The present invention provides a method and apparatus for transmitting uplink control information (UCI) with user equipment in a wireless communication system. The user equipment performs channel coding on information bits of UCI to generate encoded information bits; modulates the generated encoded information bits to generate complex modulation symbols; spreads the complex modulation symbols blockwise into a plurality of single carrier frequency division multiple access (SC-FDMA) symbols on the basis of an orthogonal sequence; and transmits the spread complex modulation symbols to a base station.
    Type: Application
    Filed: January 27, 2011
    Publication date: December 27, 2012
    Applicant: LG Electronic Inc.
    Inventors: Seung Hee Han, Yeong Hyeon Kwon, Jae Hoon Chung, Moon Il Lee
  • Patent number: 8340203
    Abstract: A data transmitting and receiving method of transmitting supplementary data in an OFDM communication system is disclosed. The method of transmitting and receiving the OFDM signal includes: mapping an input bit stream into at least one transfer symbol; changing at least one of amplitudes and phases of the transfer symbols that are transmitted by a specific sub-carrier group having a plurality of sub-carriers using constellation modification information to indicate specific additional data; and transmitting the transfer symbols, to which the changing is carried out, to a receiving end by an orthogonal frequency division multiplexing data processing, the constellation modification information being identical to each other with respect to the transfer symbols that are transmitted by the specific sub-carrier group.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: December 25, 2012
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Seung Hee Han, Min Seok Noh, Young Woo Yun
  • Patent number: 8340014
    Abstract: A method for transmitting and receiving signals using multi-band Radio Frequencies (RFs) is provided. The method includes transmitting/receiving control information identifying a subsidiary carrier frequency band for a user equipment via a primary carrier frequency band of the user equipment, wherein the control information includes information of a second ID assigned to a first ID of the subsidiary carrier frequency band among a plurality of first IDs, the first ID identifying the subsidiary carrier frequency band in the physical layer and the second ID identifying the subsidiary carrier frequency band in the specific layer.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: December 25, 2012
    Assignee: LG Electronics Inc.
    Inventors: Seung Hee Han, Min Seok Noh, Jin Sam Kwak, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim, Sung Ho Moon