Patents by Inventor Yeong Hyeon Kwon

Yeong 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).

  • Method of transmitting data in wireless communication system
    Patent number: 8315330
    Abstract: A method of transmitting data in a wireless communication system, includes: transmitting first data via a first frame for a first wireless communication system; transmitting second data via a second frame for a second wireless communication system supporting backward compatibility with respect to the first wireless communication system; and transmitting control information with respect to the first and second frames, wherein the control information includes a frame control header (FCH) which indicates information about the second frame by using a reserved bit region of the first frame.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: November 20, 2012
    Assignee: LG Electronics Inc.
    Inventors: Seong Ho Moon, Min Seok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Dong Cheol Kim, Seung Hee Han, Hyun Woo Lee
  • Method and apparatus for transmitting sequence in wireless communication system
    Patent number: 8305873
    Abstract: A method and apparatus for transmitting a sequence in a wireless communication system is provided. A transmitter generates a block sequence comprising a first sub-block sequence and a second sub-block sequence, generates a phase modulated block sequence by performing phase modulation on the block sequence, maps the phase modulated block sequence to a plurality of sub-blocks, and transmits the phase modulated block sequence mapped to the plurality of sub-blocks.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: November 6, 2012
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Jin Sam Kwak, Sung Ho Moon, Seung Hee Han, Yeong Hyeon Kwon
  • Method for allocating pilots
    Patent number: 8305989
    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: January 30, 2012
    Date of Patent: November 6, 2012
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Seung Hee Han, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Chul Kim
  • METHOD FOR PERFORMING WIRELESS COMMUNICATION BETWEEN USER EQUIPMENT AND BASE STATION IN A WIRELESS COMMUNICATION SYSTEM SUPPORTING FIRST USER EQUIPMENT USING SINGLE FREQUENCY BAND AND SECOND USER EQUIPMENT USING MULTIPLE FREQUENCY BANDS
    Publication number: 20120269136
    Abstract: A method for performing a wireless communication between a UE and a BS in a wireless communication system supporting a first UE using a single frequency band and a second UE using a plurality of frequency bands, to each of which OFDM is applied, is disclosed. The method includes being allocated one or more downlink component carriers for the second UE from the BS, and receiving the one or more downlink component carriers from the BS by the second UE. The one or more down-link component carriers are cyclically shifted by different cyclic shift values and the cyclic shifting is performed by multiplying each of the one or more downlink component carriers by a linear phase having a different inclination.
    Type: Application
    Filed: January 4, 2010
    Publication date: October 25, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Dong Youn Seo, Jae Hoon Chung, Yeong Hyeon Kwon, Dae Won Lee, Ki Jun Kim, Seung Hee Han
  • Sequence generating method for efficient detection and method for transmitting and receiving signals using the same
    Patent number: 8295389
    Abstract: A method for allowing a reception end to effectively detect a sequence used for a specific channel of an OFDM communication system, and apparatus for the same are provided. During the sequence transmission, a specific part of a Zadoff-Chu sequence corresponding to the frequency “0” is omitted from a transmitted signal. In addition, first 31 constituent components of the sequence are continuously mapped to frequency resource elements of “?31” to “?1”, and the last 31 constituent components of the sequence are continuously mapped to frequency resource elements of “1” to “31”.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: October 23, 2012
    Assignee: LG Electronics Inc.
    Inventors: Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim, Jin Sam Kwak
  • Method for transmitting and receiving additional control signals
    Patent number: 8295787
    Abstract: A method for transmitting/receiving an additional control signal without any loss of bandwidth and power in an original Tx signal is disclosed. If the additional control signal is transmitted via the Tx signal composed of at least one of data and control signals, at least one of the amplitude and phase of the Tx signal of the time- and frequency-resource domain is modulated according to the additional control signal to be transmitted. The modulated Tx signal is transmitted to the receiver, so that the additional control signal can be transmitted irrespective of the original Tx signal. According to a modulation status of at least one of an amplitude and a phase of the Rx signal contained in the time- and frequency-resource domain, the additional control signal can be acquired.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: October 23, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jin Sam Kwak, Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim
  • Method for adjusting RACH transmission against frequency offset
    Patent number: 8295266
    Abstract: A method for establishing RACH transmission to prepare against the frequency offset is disclosed. The method reduces the length of the RACH preamble even if the frequency offset exists, allows the RACH preamble to include a repeated structure (also called an iterative structure) or to use a specific sequence with less affect on the frequency offset, so that the Node-B can easily detect the RACH preamble. If different conditions are established in a high-speed UE and a low-speed UE, an amount of system overheads can be reduced as compared to another case in which an overall RACH condition has been prescribed for only the high-speed UE irrespective of the low-speed UE. And, the method determines whether the user equipment (UE) can estimate its speed according to the aforementioned RACH setup condition, and prescribes a detailed RACH access method according to the determined result.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: October 23, 2012
    Assignee: LG Electronics Inc.
    Inventors: Yeong Hyeon Kwon, Seung Hee Han, Hyun Woo Lee, Jin Sam Kwak, Dong Cheol Kim, Min Seok Noh, Dragan Vujcic
  • METHOD OF GENERATING RANDOM ACCESS PREAMBLES IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120263214
    Abstract: A method of generating random access preambles includes receiving information on a source logical index and generating random access preambles in the order of increasing cyclic shift from root ZC sequences with the consecutive logical indexes from the beginning of the source logical index until a predetermined number of the random access preambles are found, wherein the consecutive logical indexes are mapped to root indexes of the root ZC sequences.
    Type: Application
    Filed: June 26, 2012
    Publication date: October 18, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Hyun Woo LEE, Seung Hee HAN, Min Seok NOH, Jin Sam KWAK, Dragan VUJCIC, Dong Cheol KIM, Yeong Hyeon KWON
  • Method for generating a reference signal sequence using grouping
    Patent number: 8290021
    Abstract: A method for a base station to receive a reference signal sequence from one or more devices within a cell of the base station in a multiple cell environment includes providing the one or more devices with information about the reference signal sequence, wherein the reference signal sequence is defined by a cyclic shift of a sequence within a sequence group identified by a group index (u), wherein the group index (u) is defined according to the cell in the multiple cell environment, wherein the sequence is given by a cyclic extension of a Zadoff Chu (ZC) sequence having an index (q) and a length (NZCRS), and wherein the index (q) is given by using the group index (u) and the length (NZCRS), and receiving the reference signal sequence from one or more of the one or more devices.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: October 16, 2012
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Seung Hee Han, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim, Jin Sam Kwak
  • Method for transmitting information using sequence
    Patent number: 8279909
    Abstract: A method for transmitting information using a sequence is disclosed. According to an embodiment, the method includes the steps of generating a sequence for transmitting data or control signals, performing phase modulation for indicating additional information on partial elements among a plurality of elements configuring the sequence, and transmitting the phase modulated sequence.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: October 2, 2012
    Assignee: LG Electronics Inc.
    Inventors: Min Seok Noh, Seung Hee Han, Yeong Hyeon Kwon, Hyun Hwa Park, Hyun Woo Lee, Dong Cheol Kim, Jin Sam Kwak
  • METHOD OF TRANSMITTING DATA IN A MOBILE COMMUNICATION SYSTEM
    Publication number: 20120243635
    Abstract: Provided is a method for a device to receive a signal for synchronization. The method may include receiving the signal for synchronization as defined by a sequence corresponding to an interleaved concatenation of a first sequence and a second sequence. Components of the first sequence may correspond to odd-th components of the sequence corresponding to the interleaved concatenation. Components of the second sequence may correspond to even-th components corresponding to the interleaved concatenation. The method may also include detecting group identification (ID) that is defined based on a combination of a first ID of the first sequence and a second ID of the second sequence.
    Type: Application
    Filed: June 5, 2012
    Publication date: September 27, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Yeong Hyeon KWON, Seung Hee HAN, Hyun Hwa PARK, Dong Cheol KIM, Hyun Woo LEE, Min Seok NOH
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING A SIGNAL IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS PLURAL COMPONENT CARRIERS
    Publication number: 20120243498
    Abstract: The present invention relates to a method for receiving a terminal signal in a wireless communication system that supports plural component carriers, the method comprising: receiving a subframe including a plurality of OFDM symbols from a base station (BS); and receiving identification information indicative of a particular component carrier, from one or more consecutive OFDM symbols located at the front of the subframe, wherein the identification information indicative of the particular component carrier includes a carrier offset value with respect to a reference component carrier.
    Type: Application
    Filed: July 14, 2010
    Publication date: September 27, 2012
    Inventors: Yeong Hyeon Kwon, So Yeon Kim, Sung Ho Moon, Jae Hoon Chung, Seung Hee Han
  • REPEATER APPARATUS FOR SIMULTANEOUSLY TRANSCEIVING SIGNALS IN A WIRELESS COMMUNICATION SYSTEM, AND METHOD FOR SAME
    Publication number: 20120236783
    Abstract: Disclosed are a base station apparatus and a repeater apparatus for transceiving signals in a wireless communication system. The repeater apparatus comprises: a receiver which receives a signal from a base station through a first region of a first downlink subframe in a component carrier that supports first and second wireless communication schemes; and a transmitter which transmits, through a second region of the first downlink subframe, a signal to one or more terminals of one or more first type of terminals which use the first wireless communication scheme and one or more second type of terminals which use the second wireless communication scheme, simultaneously with said reception of the signal. Here, the first region and the second region are multiplexed in the first downlink subframe in accordance with a frequency division multiplexing (FDM) scheme.
    Type: Application
    Filed: December 10, 2010
    Publication date: September 20, 2012
    Inventors: Kyu Jin Park, Sung Ho Moon, Yeong Hyeon Kwon, Jae Hoon Chung, Han Gyu Cho
  • TERMINAL DEVICE FOR RECEIVING SIGNAL IN WIRELESS COMMUNICATION SYSTEM FOR SUPPORTING A PLURALITY OF COMPONENT CARRIERS AND METHOD THEREOF
    Publication number: 20120230239
    Abstract: Disclosed are a terminal device for receiving a signal in a wireless communication system for supporting a plurality of component carriers and a method thereof. In the terminal device for receiving the signal in the system for supporting the component carriers, a receiver receives a Physical Downlink Control Channel (PDCCH) including control information of a first type component carrier from a base station or a relay. A processor performs a decoding operation or controls an operation in a slip mode on the basis of control information included in a PDCCH in a second type component carrier after a time corresponding to a particular time offset value passes from a transmission time point of the PDCCH.
    Type: Application
    Filed: November 30, 2010
    Publication date: September 13, 2012
    Inventors: Kyu Jin Park, Sung Ho Moon, Jae Hoon Chung, Seung Hee Han, Yeong Hyeon Kwon, Han Gyu Cho
  • METHOD AND APPARATUS FOR TRANSMITTING AN UPLINK OR DOWNLINK GRANT IN A WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS UPLINK AND DOWNLINK MIMO SCHEMES
    Publication number: 20120230291
    Abstract: The present invention relates to a method for transmitting an uplink or downlink grant in a wireless communication system that supports uplink and downlink multiple input multiple output (MIMO) schemes. The method comprises: determining a downlink control information (DCI) format for an uplink or downlink grant to generate control information: attaching a cyclic redundancy check (CRC) for detecting an error in the created control information; and channel-coding the CRC-attached control information, wherein the control information comprises a bit flag for distinguishing whether the grant is an uplink grant or a downlink grant.
    Type: Application
    Filed: December 16, 2010
    Publication date: September 13, 2012
    Inventors: Seung Hee Han, So Yeon Kim, Sung Ho Moon, Yeong Hyeon Kwon, Hyun Soo Ko, Jae Hoon Chung, Min Seok Noh, Moon II Lee
  • Method for signal mapping and signal transmission with subcarrier shift schemes
    Patent number: 8264945
    Abstract: A signal mapping method and a signal transmission method applying a subcarrier shift method are described. A signal mapping method using shifted subcarriers includes shifting positions of data subcarriers by as much as a frequency band corresponding to half of spacing between data subcarriers on a frequency axis, and shifting positions of random access preamble subcarriers by as much as a frequency band corresponding to half of spacing between the data subcarriers and to a specific ratio of spacing between the random access preamble subcarriers, and mapping data and a random access preamble to the data subcarriers and the random access preamble subcarrier, respectively. Even when the spacing between the data subcarriers is a multiple of the spacing between the random access preamble subcarriers, DC distortion can be minimized.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: September 11, 2012
    Assignee: LG Electronics Inc.
    Inventors: Dragan Vujcic, Hyun Woo Lee, Seung Hee Han, Min Seo Hon, Jin Sam Kwak, Dong Cheol Kim, Yeong Hyeon Kwon
  • Method for setting cyclic shift considering frequency offset
    Patent number: 8259844
    Abstract: A method for a user equipment to transmit a random access preamble sequence to a base station includes transmitting the random access preamble sequence generated from a Constant Amplitude Zero Auto Correlation (CAZAC) sequence to the base station, wherein the CAZAC sequence is cyclic shifted according to one of applicable cyclic shift values defined considering a value (M) representing a Doppler shift of one subcarrier spacing and a cyclic shift unit length (T), and wherein when the value (M) meets a condition of ‘P*T?M <(P+1)*T’ where (P) is an integer, one or more adjacent cyclic shift values among the applicable cyclic shift values are defined as a group and a number of the adjacent cyclic shift values within the group equals to (P).
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: September 4, 2012
    Assignee: LG Electronics Inc.
    Inventors: Hyun Woo Lee, Min Seok Noh, Yeong Hyeon Kwon, Seung Hee Han, Dong Cheol Kim, Jin Sam Kwak, Dragan Vujcic
  • TRANSMISSION METHOD OF DOWNLINK SIGNAL IN WIRELESS COMMUNICATION SYSTEM AND TRANSMISSION APPARATUS THEREFOR
    Publication number: 20120218952
    Abstract: The present invention provides a method for a base station to transmit a downlink signal in a wireless communication system, the method comprising: allocating a resource to a downlink signal; and transmitting the downlink signal using the allocated resource. In the downlink signal transmission method and apparatus thereof, a resource for transmitting a Physical Downlink Shared Channel (PDSCH) among the downlink signals is allocated from a specific OFDM symbol that is fixed within a subframe.
    Type: Application
    Filed: August 23, 2010
    Publication date: August 30, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Yeong Hyeon Kwon, So Yeon Kim, Sung Ho Moon, Jae Hoon Chung, Seung Hee Han
  • METHOD OF TRANSMITTING SCHEDULING REQUEST IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120213193
    Abstract: A method and apparatus for requesting uplink resources in a wireless communication system is provided. A user equipment determines whether a scheduling request for requesting uplink resources is triggered. If the scheduling request is triggered, the user equipment transmits a first set of frequency domain sequences and a second set of frequency domain sequences in a subframe.
    Type: Application
    Filed: April 17, 2012
    Publication date: August 23, 2012
    Inventors: Yeong Hyeon Kwon, Seung Hee Han, Hyun Woo Lee, Jae Hoon Chung, Jin Sam Kwak, Dong Cheol Kim, Min Seok Noh
  • METHOD OF TRANSMITTING CONTROL SIGNALS IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120213176
    Abstract: A method of transmitting control signals in a wireless communication system includes multiplexing a first control signal with a second control signal in a slot, the slot comprising a plurality of orthogonal frequency division multiplexing (OFDM) symbols in time domain, the plurality of OFDM symbols being divided into a plurality of data OFDM symbols and a plurality of reference signal (RS) OFDM symbols, wherein the first control signal is mapped to the plurality of data OFDM symbols after the first control signal is spread by a base sequence in the frequency domain, the RS is mapped to the plurality of RS OFDM symbols, the second control signal is mapped to at least one of the plurality of RS OFDM symbols, and transmitting the first control signal and the second control signal in the slot.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 23, 2012
    Inventors: Jin Sam Kwak, Seung Hee Han, Min Seok Noh, Yeong Hyeon Kwon, Hyun Woo Lee, Dong Cheol Kim