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).

  • APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION FOR REPEATER AND METHOD THEREOF
    Publication number: 20120099518
    Abstract: Disclosed are an apparatus for transmitting and receiving control information for a relay node and a method thereof. The relay node for receiving control information in a wireless communication system comprises: a receiving module for receiving through higher layer signaling from a base station the information on a resource block (RB) which the relay node should search to receive the control information; a processor for detecting the control information from the first RB by blind-decoding at least one received RB which should be searched; and a receiving module for receiving through the first RB from the base station the control information detected by the processor.
    Type: Application
    Filed: June 28, 2010
    Publication date: April 26, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Kyu Jin Park, Sung Ho Moon, Yeong Hyeon Kwon, Jae Hoon Chung
  • METHOD FOR TRANSMITTING AND RECEIVING RANDOM ACCESS REQUEST AND TRANSMITTING AND RECEIVING RANDOM ACCESS RESPONSE
    Publication number: 20120093173
    Abstract: A base station transmits a random access response in response to a random access request (random access preamble) of a user equipment. The random access response includes information about a time when the random access request is transmitted and sequence number information of the random access request (random access preamble). The user equipment checks whether the received random access response is the response of the random access request transmitted by the user equipment, using the information about the time when the random access request is transmitted and the sequence number information included in the received random access response.
    Type: Application
    Filed: December 29, 2011
    Publication date: April 19, 2012
    Inventors: Min Seok Noh, Yeong Hyeon Kwon, Jin Sam Kwak, Dong Cheol Kim, Sung Ho Moon, Seung Hee Han, Hyun Woo Lee, Dragan Vujcic
  • APPARATUS AND METHOD FOR TRANSMITTING DATA USING A PLURALITY OF CARRIERS
    Publication number: 20120093248
    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: Application
    Filed: October 20, 2011
    Publication date: April 19, 2012
    Inventors: Yeong Hyeon Kwon, Seung Hee Han, Min Seok Noh, Young Woo Yun
  • CELL SEARCHING METHOD AND APPARATUS IN MULTI-CARRIER SYSTEM
    Publication number: 20120093021
    Abstract: Provided are a cell searching method and an apparatus in a multi-carrier system. A terminal acquires a first physical cell identity (PCI) for a first downlink component carrier, and acquires an expanded PCI for a second downlink component carrier. A first downlink reference signal through the first downlink element carrier is transmitted on the basis of the PCI, and a second downlink reference signal through the second downlink component carrier is transmitted on the basis of the expanded PCI.
    Type: Application
    Filed: July 21, 2010
    Publication date: April 19, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: So Yeon Kim, Han Gyu Cho, Jae Hoon Chung, Sung Ho Moon, Seung Hee Han, Yeong Hyeon Kwon
  • METHOD AND APPARATUS FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120093119
    Abstract: The present invention provides a method and an apparatus for transmitting a sounding reference signal. A terminal receives from a base station a sounding reference signal (SRS) configuration that includes a cell specific SRS configuration and a terminal specific SRS configuration, via a downlink carrier. The terminal then transmits a sounding reference signal based on the SRS configuration via an uplink carrier that is linked to the downlink carrier.
    Type: Application
    Filed: June 17, 2010
    Publication date: April 19, 2012
    Inventors: So Yeon Kim, Han Gyu Cho, Jae Hoon Chung, Min Seok Noh, Yeong Hyeon Kwon
  • Method for communicating data between mobile station and base station, and mobile communication terminal thereof
    Patent number: 8160101
    Abstract: A method for transmitting and receiving data by a mobile station (MS), a method for transmitting and receiving data by a base station (BS), and a mobile communication terminal are provided. The method for transmitting and receiving data by an MS includes generating an uplink subframe by placing an uplink control channel so as to have a margin with a time allocated to a MAP of a downlink subframe and transmitting the uplink subframe to a BS. A new frame structure compatible with a full duplex FDD MS is applied in a mobile communication system.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: April 17, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jin Sam Kwak, Ki Seon Ryu, Bin Chul Ihm, Yeong Hyeon Kwon
  • REFERENCE SIGNAL TRANSMITTING METHOD AND DEVICE IN A MULTI-ANTENNA SYSTEM
    Publication number: 20120087427
    Abstract: Provided are a reference signal transmitting method and device in a multi-antenna system. A terminal generates a plurality of reference signal sequences to which different cyclic shift values are allocated, respectively, generates an orthogonal frequency division multiplexing (OFDM) symbol to which the plurality of reference signal sequences are mapped, and transmits the OFDM symbol to a base station through a plurality of antennas. Each cyclic shift value allocated to each reference signal sequence is determined on the basis of a parameter n indicated by a cyclic shift field transmitted from a physical downlink control channel (PDCCH).
    Type: Application
    Filed: May 11, 2010
    Publication date: April 12, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Min Seok Noh, Jae Hoon Chung, Yeong Hyeon Kwon, Hyun Soo Ko, Seung Hee Han, Moon Il Lee
  • METHOD AND APPARATUS FOR SIGNAL TRANSMISSION IN COMP SCHEME
    Publication number: 20120087273
    Abstract: The present system relates to a method for signal transmission in a CoMP scheme. Each cell that performs a CoMP operation in capable of setting and allocating a particular carrier and a particular CoMP zone in order to execute a particular CoMP scheme. Using the particular CoMP zone and the allocated carrier, a terminal can transmit and receive a CoMP signal corresponding to the particular CoMP zone and the allocated carrier. The terminal can perform measurement of a carrier or a particular zone within the carrier and select a carrier or a particular zone, on the basis of the measurement value. On the other hand, a serving base station can select a carrier or a particular zone, on the basis of the measurement value that is received from the terminal.
    Type: Application
    Filed: June 7, 2010
    Publication date: April 12, 2012
    Inventors: Ja Ho Koo, Yeong Hyeon Kwon, Jian Xu, Sung Ho Moon, Bin Chul Ihm, Jae Hoon Chung
  • Method of performing cell search in wireless communucation system
    Patent number: 8155106
    Abstract: A method of performing cell search includes receiving a primary synchronization signal (PSS) comprising a primary synchronization code (PSC) and receiving a secondary synchronization signal (SSS) comprising a first secondary synchronization code (SSC) and a second SSC, wherein the SSS includes a first SSS and a second SSS, the first SSC and the second SSC are arranged in that order in the first SSS, and the second SSC and the first SSC are arranged in that order in the second SSS. Detection performance on synchronization signals can be improved, and cell search can be performed more reliably.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: April 10, 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 and apparatus for adjusting power control mode in wireless communication system
    Patent number: 8155688
    Abstract: A method and an apparatus for adjusting power control mode in a wireless communication system is provided. A mode change message is transmitted from a base station (BS) to a user equipment (UE) to request changing a power control mode from a base station (BS). The mode change message comprises a power control mode change (PMC) field which indicates the power control mode to be changed. The UE transmits a UE confirmation message to the BS, and receives a BS confirmation message from the BS. The UE changes the power control mode based on the mode change message.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: April 10, 2012
    Assignee: LG Electronics Inc.
    Inventors: Dong Cheol Kim, Minseok Noh, Hyunwoo Lee, Seunghee Han, Yeong Hyeon Kwon
  • DATA TRANSMISSION/RECEPTION METHOD AND APPARATUS USING A TRANSMISSION DIVERSITY TECHNIQUE IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120082119
    Abstract: The present invention relates to a data transmission/reception method using a transmission diversity technique in a wireless communication system. In the data transmission/reception method using the transmission diversity technique in the wireless communication system according to one aspect of the present invention, a base station allocates a downlink resource to a terminal, precodes data for transmitting to the terminal, and allocates the precoded data and a non-precoded demodulation reference signal (DMRS) to the allocated resource in order to transmit same.
    Type: Application
    Filed: May 10, 2010
    Publication date: April 5, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Jae Hoon Chung, Yeong Hyeon Kwon, Moon Il Lee, Hyun Soo Ko
  • METHOD AND APPARATUS FOR TRANSMITTING SOUNDING REFERENCE SIGNAL
    Publication number: 20120082124
    Abstract: The present invention relates to a method for transmitting a sounding reference signal from a terminal in a wireless communication system, the method comprising: receiving resource operation information, which includes resource allocation information for channel sounding, from a base station; and transmitting the sounding reference signal through the entire or part of a resource region that is allocated for transmission of a demodulation reference signal on a physical uplink shared channel (PUSCH) according to the resource operation information.
    Type: Application
    Filed: June 3, 2010
    Publication date: April 5, 2012
    Inventors: Yeong Hyeon Kwon, Jae Hoon Chung, Kyu Jin Park, Min Seok Noh, So Yeon Kim, Sung Ho Moon
  • Ranging method using new ranging structure
    Patent number: 8149782
    Abstract: A method for performing ranging in a broadband wireless access system including a user equipment and a base station and using multi-carrier is described. A method using a structure in which a length of a part occupied by a ranging sequence is extended in the time domain includes a method using a structure in which a preamble occupied by the ranging sequence is repeated three times or more, a method using a structure in which a length of a preamble occupied by the ranging sequence is extended in the time domain, and a method using a structure in which lengths of a cyclic prefix and/or a guard time in the time domain are designed in consideration of a delay spread of a channel and a trip delay. Even in a cell structure having an extended radius, the trip delay can accurately be estimated.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: April 3, 2012
    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
  • METHOD AND APPARATUS FOR TRANSMITTING SIGNAL USING SPATIAL SILENCING
    Publication number: 20120076039
    Abstract: The present invention relates to a method for transmitting signals in a heterogeneous network, the method comprising: a step wherein a base station determines a value-added vector for forming a beam pattern to be applied to a subsidiary carrier; a step wherein carrier operation information including information related to the determined value-added vector is transmitted via a primary carrier; and a step wherein the subsidiary carrier is transmitted by applying the determined value-added vector.
    Type: Application
    Filed: May 29, 2010
    Publication date: March 29, 2012
    Inventors: Yeong Hyeon Kwon, Moon Il Lee, Ja Ho Koo, Jae Hoon Chung, Sung Ho Moon, Seung Hee Han
  • METHOD AND APPARATUS FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN RADIO COMMUNICATION SYSTEM
    Publication number: 20120076037
    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: Application
    Filed: May 17, 2010
    Publication date: March 29, 2012
    Inventors: Min Seok Noh, Jae Hoon Chung, Yeong Hyeon Kwon
  • METHOD AND APPARATUS FOR TRANSMITTING REFERENCE SIGNAL IN MULTI-ANTENNA SYSTEM
    Publication number: 20120076100
    Abstract: Provided are a method and apparatus for transmitting a reference signal in a multi-antenna system. A terminal generates a plurality of reference signal sequences to which cyclic shift values different from each other are allocated, generates an orthogonal frequency division multiplexing (OFDM) symbol to which the plurality of reference signal sequences are mapped, and transmits the OFDM symbol to a base station through a plurality of antennas. The respective cyclic shift values allocated to the respective reference signal sequences are determined on the basis of a parameter n indicated by a cyclic shift field transmitted from a physical downlink control channel (PDCCH).
    Type: Application
    Filed: May 20, 2010
    Publication date: March 29, 2012
    Applicant: LG ELECTRONICS INC.
    Inventors: Min Seok Noh, Jae Hoon Chung, Yeong Hyeon Kwon, Hyun Soo Ko, Seung Hee Han, Moon Il Lee
  • DEVICE AND METHOD FOR MONITORING CONTROL CHANNEL IN MULTICARRIER SYSTEM
    Publication number: 20120078933
    Abstract: Provided are a method and a device for monitoring the control channel in a multicarrier system. The terminal determines a plurality of terminal-specific search spaces corresponding respectively to a plurality of scheduled component carriers in a control region within a subframe. The terminal monitors a downlink control channel for the scheduled component carriers corresponding respectively to the plurality of terminal-specific search spaces.
    Type: Application
    Filed: May 14, 2010
    Publication date: March 29, 2012
    Inventors: So Yeon Kim, Sung Ho Moon, Jae Hoon Chung, Yeong Hyeon Kwon, Han Gyu Cho
  • METHOD AND APPARATUS FOR TRANSMITTING SOUNDING REFERENCE SIGNAL IN RADIO COMMUNICATION SYSTEM
    Publication number: 20120076115
    Abstract: Disclosed is a method for transmitting a sounding reference signal from a terminal to a base station in a radio communication system to which carrier aggregation is applied. More specifically, the method comprises the steps of: receiving information on a plurality of uplink component carriers for transmitting periodic sounding reference signals from a base station; allocating different time resources for said periodic sounding reference signal transmitted via said plurality of uplink component carriers; and transmitting said periodic sounding reference signals to said base station using said uplink component carriers and said allocated different time resources.
    Type: Application
    Filed: May 17, 2010
    Publication date: March 29, 2012
    Inventors: Min Seok Noh, Jae Hoon Chung, Yeong Hyeon Kwon, Seung Hee Han, Moon Il Lee
  • Method for setting cyclic shift considering frequency offset
    Patent number: 8144805
    Abstract: A method for establishing a cyclic shift sequence to provide against the frequency offset is disclosed. The method calculates a distance between a channel response position of the sequence and an alias channel response position caused by a frequency offset, calculates the number of cyclic shifts per group according to the calculated distance, and establishes the cyclic shift (CS)-applying interval. This method easily establishes a cyclic shift (CS) interval at a specific location having no overlapping by considering a channel response of a reception (Rx) sequence and an alias location of this reception (Rx) sequence, although a reception (Rx) signal is shifted by a channel delay spreading or a propagation delay irrespective of categories of a domain generating a sequence, so that it can greatly reduce the number of the detection errors and the false alarm rate.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: March 27, 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
  • METHOD AND APPARATUS OF TRANSMITTING AND RECEIVING BACKHAUL DOWNLINK CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20120069790
    Abstract: The present invention relates to a method and an apparatus of transmitting and receiving backhaul downlink control information in a wireless communication system. In the method for transmitting backhaul downlink control information from a base station in a wireless communication system according to one aspect of the present invention, the base station transmits resource allocation information to at least one terminal and at least one relay node via a relay-physical downlink control channel (hereinafter referred to as “R-PDCCH”); transmits backhaul system information to the at least one relay node and the at least one terminal via a relay physical downlink shared channel (hereinafter referred to as “R-PDSCH”) which is determined according to the resource allocation information; and changes a backhaul downlink resource block according to the backhaul system information.
    Type: Application
    Filed: May 19, 2010
    Publication date: March 22, 2012
    Inventors: Jae Hoon Chung, Kyu Jin Park, Sung Ho Moon, Yeong Hyeon Kwon