Patents by Inventor Yong-Jun Kwak

Yong-Jun Kwak 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: 20160014792
    Abstract: Disclosed is a method for wireless communication, including identifying a path loss and a size of a message that a user equipment will transmit after a transmission of a preamble, selecting a first preamble set from at least two preamble sets if the path loss is less than a first threshold and the size of the message is greater than a second threshold, selecting a preamble from the selected first preamble set if the first preamble set is selected, transmitting the selected preamble, and receiving a response message in response to the 10 transmission of the selected preamble.
    Type: Application
    Filed: September 24, 2015
    Publication date: January 14, 2016
    Inventors: Kyeong-In JEONG, Himke VAN DER VELDE, Gert Jan VAN LIESHOUT, Yong-Jun KWAK, Soeng-Hun KIM
  • Patent number: 9232486
    Abstract: A method and apparatus are provided for transmitting a synchronization signal for cell search in an Orthogonal Frequency Division Multiplexing (OFDM) communications system. The method includes identifying a primary synchronization sequence; identifying a secondary synchronization sequence associated with a cell identifier; mapping the primary synchronization sequence based on center subcarriers in a first OFDM symbol; mapping the secondary synchronization sequence based on the center subcarriers in a second OFDM symbol; transmitting the mapped primary synchronization sequence in the first OFDM symbol; and transmitting the mapped secondary synchronization sequence in the second OFDM symbol. The second OFDM symbol is adjacent to the first OFDM symbol, and the center subcarriers are part of a system bandwidth and a part of the center subcarriers is not used for mapping the secondary synchronization sequence.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: January 5, 2016
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Joon-Young Cho, Ju-Ho Lee, Yong-Jun Kwak
  • Publication number: 20150382369
    Abstract: Methods and apparatuses are provided for communication between a user equipment (UE) and a node B in a communication system. The UE generates a media access control protocol data unit (MAC PDU) including at least one field related to an amount of data, if the data becomes available for transmission. The MAC-PDU including the at least one field related to the amount of data is transmitted to the node B. Grant information is received from the node B. The data is transmitted to the Node B based on the grant information. Each of the at least one field related to the amount of data corresponds to a respective identifier.
    Type: Application
    Filed: September 11, 2015
    Publication date: December 31, 2015
    Inventors: Youn-Hyoung HEO, Kyeong-In Jeong, Ju-Ho Lee, Sung-Ho Choi, Yong-Jun Kwak, Young-Bum Kim
  • Publication number: 20150382368
    Abstract: Methods and apparatuses are provided for communication between a UE and a node B in a communication system. The UE generates a media access control protocol data unit (MAC PDU) comprising at least one media access control service data unit (MAC SDU) and at least one field related to an amount of data. Each of the at least one field related to the amount of data corresponds to a respective identifier, and the at least one field related to the amount of data is placed prior to the at least one MAC SDU in the MAC PDU. The MAC PDU comprising the at least one MAC SDU and the at least one field related to the amount of data is transmitted to the node B. Grant information is received from the node B. Data is transmitted to the node B based on the grant information.
    Type: Application
    Filed: September 11, 2015
    Publication date: December 31, 2015
    Inventors: Youn-Hyoung HEO, Kyeong-ln JEONG, Ju-Ho LEE, Sung-Ho CHOI, Yong-Jun KWAK, Young-Bum KIM
  • Publication number: 20150326368
    Abstract: A method and an apparatus method are provided for transmitting uplink information including acknowledgement information in a wireless communication system. The method includes coding uplink data and the acknowledgement information by using different coding schemes respectively; multiplexing the coded uplink data and the coded acknowledgement information into the uplink information; and transmitting the uplink information using resources, wherein some of the uplink data is transmitted based on a first resource and the acknowledgment information is transmitted based on a second resource, and wherein the first and second resources are adjacent to each other with respect to a time domain.
    Type: Application
    Filed: July 17, 2015
    Publication date: November 12, 2015
    Inventors: Yong-Jun KWAK, Ju-Ho LEE, Joon-Young CHO
  • Patent number: 9185723
    Abstract: A method and apparatus for transmitting and receiving downlink control information in a mobile communication system supporting an uplink packet data service are provided. To transmit packet data in an HARQ mobile communication system, a second transceiver receives an RG as rate control information from a first transceiver. The second transceiver sets the allowed maximum data rate of an HARQ process to which the RG is applied to the allowed maximum data rate of an HARQ process previous to the HARQ process, if the RG indicates hold. The second transceiver transmits packet data within the set allowed maximum data rate to the first transceiver.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: November 10, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Bum Kim, Yong-Jun Kwak, Ju-Ho Lee, Youn-Hyoung Heo, Joon-Young Cho
  • Publication number: 20150270918
    Abstract: A method of decoding a reception signal having an interference signal included therein by User Equipment (UE) in a wireless communication system is provided. The method includes receiving the reception signal having the interference signal included therein, identifying at least one of transmission parameters for the interference signal, identifying a modulation scheme of the interference signal and reception strength of the interference signal using the identified transmission parameter, removing the interference signal from the reception signal based on the identified modulation scheme and the identified reception strength of the interference signal, and decoding the reception signal from which the interference signal is removed.
    Type: Application
    Filed: March 20, 2015
    Publication date: September 24, 2015
    Inventors: Hyo-Jin LEE, Cheol-Kyu SHIN, Hyoung-Ju JI, Yong-Jun KWAK, Young-Bum KIM, Youn-Sun KIM, Ju-Ho LEE
  • Publication number: 20150270939
    Abstract: A method and an apparatus for generating a sequence including a demodulation reference signal (DM RS) and a preamble in device-to-device (D2D) communications are provided. The method includes obtaining, by a controller of an apparatus, a synchronization identify of a synchronization signal used for the D2D communication, obtaining a group identify of a communication group where a terminal belongs, generating a DM RS sequence for the D2D communication based on at least one of the synchronization identity and the group identity, mapping the DM RS sequence to predetermined symbol positions in a subframe, and transmitting the DM RS sequence from the terminal through the subframe.
    Type: Application
    Filed: March 20, 2015
    Publication date: September 24, 2015
    Inventors: Sang-Min RO, Yong-Jun KWAK, Kyeong-In JEONG, Hyoung-Ju JI
  • Patent number: 9124400
    Abstract: A method and an apparatus method are provided for transmitting uplink information in a Single Carrier Frequency Division Multiple Access (SC-FDMA) wireless communication system. The method includes determining whether Acknowledgement/Negative Acknowledgement (ACK/NACK) information indicating whether or not downlink data has been received exists to be transmitted, if uplink data exists to be transmitted; multiplexing the uplink data and control information for the uplink data and transmitting multiplexed data including the uplink data and the control information, through a frequency resource allocated for the uplink data, if no ACK/NACK information exists; and multiplexing the uplink data, the control information for the uplink data, and the ACK/NACK information, and transmitting multiplexed data through the frequency resource allocated for the uplink data, if the ACK/NACK information exists. The ACK/NACK information is located adjacent to a pilot for the uplink data.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: September 1, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yong-Jun Kwak, Ju-Ho Lee, Joon-Young Cho
  • Publication number: 20150208359
    Abstract: A method for configuring gain factors in a WCDMA telecommunication system is provided in which the gain factor for defining power required for normal reception of uplink data in an environment supporting an uplink service over an E-DCH can be configured using minimal signaling information. First gain factors for first TFs corresponding to a part of a TF set including a plurality of TFs available for an uplink service are received. One of the first TFs is determined as a reference TF for a second TF other than the first TFs in the TF set. Then, a second gain factor for the second TF is calculated using the first gain factor for the determined reference TF. The second gain factor is used for transmitting or receiving uplink data.
    Type: Application
    Filed: March 30, 2015
    Publication date: July 23, 2015
    Inventors: Youn-Hyoung HEO, Ju-Ho LEE, Yujian ZHANG, Joo-Young CHO, Young-Bum KIM, Yong-Jun KWAK
  • Publication number: 20150139133
    Abstract: A method and apparatus are provided for transmitting control information in a base station for a wireless communication system. The method includes receiving, from a terminal, a channel quality indicator (CQI); determining at least one control channel element (CCE) for a physical downlink control channel (PDCCH) based on the received CQI and an identifier (ID) of the terminal; and transmitting, to the terminal, control information on the PDCCH including the determined at least one CCE. A number of the at least one CCE is determined based on the CQI.
    Type: Application
    Filed: December 15, 2014
    Publication date: May 21, 2015
    Inventors: Yong-Jun Kwak, Hwan-Joon Kwon, Joon-Young Cho, Ju-Ho Lee, Jin-Kyu Han, Youn-Hyoung Heo, Ping Wang
  • Patent number: 8995924
    Abstract: A method for configuring gain factors in a WCDMA telecommunication system is provided in which the gain factor for defining power required for normal reception of uplink data in an environment supporting an uplink service over an E-DCH can be configured using minimal signaling information. First gain factors for first TFs corresponding to a part of a TF set including a plurality of TFs available for an uplink service are received. One of the first TFs is determined as a reference TF for a second TF other than the first TFs in the TF set. Then, a second gain factor for the second TF is calculated using the first gain factor for the determined reference TF. The second gain factor is used for transmitting or receiving uplink data.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: March 31, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youn-Hyoung Heo, Ju-Ho Lee, Yujian Zhang, Joo-Young Cho, Young-Bum Kim, Yong-Jun Kwak
  • Publication number: 20150043694
    Abstract: A method and apparatus are provided for transmitting a synchronization signal for cell search in an Orthogonal Frequency Division Multiplexing (OFDM) communications system. The method includes identifying a primary synchronization sequence; identifying a secondary synchronization sequence associated with a cell identifier; mapping the primary synchronization sequence based on center subcarriers in a first OFDM symbol; mapping the secondary synchronization sequence based on the center subcarriers in a second OFDM symbol; transmitting the mapped primary synchronization sequence in the first OFDM symbol; and transmitting the mapped secondary synchronization sequence in the second OFDM symbol. The second OFDM symbol is adjacent to the first OFDM symbol, and the center subcarriers are part of a system bandwidth and a part of the center subcarriers is not used for mapping the secondary synchronization sequence.
    Type: Application
    Filed: October 28, 2014
    Publication date: February 12, 2015
    Inventors: Joon-Young CHO, Ju-Ho LEE, Yong-Jun KWAK
  • Publication number: 20150016291
    Abstract: One or more embodiments discloses a method of measuring interference by an evolved NodeB and an eNB device. The method includes configuring one or more first type interference measurement resources in a User Equipment (UE). The method also includes transmitting signals for a plurality of UEs within a cell range of the eNB to the one or more first type interference measurement resources. The method also includes receiving channel status information generated in accordance with a signal received in the one or more first type interference measurement resources.
    Type: Application
    Filed: July 10, 2014
    Publication date: January 15, 2015
    Inventors: Youn Sun Kim, Ju Ho Lee, Hyo Jin Lee, Yong Jun Kwak, Young Bum Kim, Hyoung Ju Ji
  • Patent number: 8934434
    Abstract: A method and apparatus are provided for transmitting control information in a base station for a wireless communication system. The method includes transmitting, to a terminal, information associated with a number of Control Channel Elements (CCEs) included in control channels, determining a set of control channel candidates based on an IDentifier (ID) of the terminal and the information associated with the number of CCEs; selecting at least one control channel candidate from among the set of control channel candidates; and transmitting the control information to the terminal through the selected at least one control channel candidate.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: January 13, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Jun Kwak, Hwan-Joon Kwon, Joon-Young Cho, Ju-Ho Lee, Jin-Kyu Han, Youn-Hyoung Heo, Ping Wang
  • Patent number: 8873488
    Abstract: Provided is a method and apparatus for transmitting a synchronization signal for cell search in an Orthogonal Frequency Division Multiplexing (OFDM) communications system. The method includes acquiring Primary Synchronization CHannel (P-SCH) sequence and Secondary Synchronization CHannel (S-SCH) sequence; mapping the P-SCH sequence and the S-SCH sequence onto subcarriers; generating OFDM symbols including the P-SCH sequence and the S-SCH sequence mapped onto subcarriers; and transmitting the OFDM symbols, wherein a frame comprising a plurality of OFDM symbols, a part of the plurality of OFDM symbols in the frame is used for transmitting Synchronization CHannel (SCH) comprising P-SCH and S-SCH, and wherein the P-SCH and the S-SCH are mapped to adjacent OFDM symbols and the S-SCH is mapped to subcarriers with a predetermined interval in a frequency domain within an OFDM symbol.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: October 28, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Joon-Young Cho, Ju-Ho Lee, Yong-Jun Kwak
  • Publication number: 20140140302
    Abstract: A method and an apparatus method are provided for transmitting uplink information in a Single Carrier Frequency Division Multiple Access (SC-FDMA) wireless communication system. The method includes determining whether Acknowledgement/Negative Acknowledgement (ACK/NACK) information indicating whether or not downlink data has been received exists to be transmitted, if uplink data exists to be transmitted; multiplexing the uplink data and control information for the uplink data and transmitting multiplexed data including the uplink data and the control information, through a frequency resource allocated for the uplink data, if no ACK/NACK information exists; and multiplexing the uplink data, the control information for the uplink data, and the ACK/NACK information, and transmitting multiplexed data through the frequency resource allocated for the uplink data, if the ACK/NACK information exists. The ACK/NACK information is located adjacent to a pilot for the uplink data.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yong-Jun KWAK, Ju-Ho Lee, Joon-Young Cho
  • Patent number: 8705457
    Abstract: A method is provided for transmitting a control channel for resource allocation to a terminal by a base station in an Orthogonal Frequency Division Multiple Access (OFDMA) wireless communication system. An additional resource allocation indicator is set indicating whether the number of consecutive resource block sets allocated to a terminal is greater than one. A reference control channel is generated including reference resource allocation information for a first consecutive resource block set and the set additional resource allocation indicator. An additional control channel using additional resource allocation information is generated, when there are one or more additional consecutive resource block sets. At least one of the generated reference control channel and the generated additional control channels is encoded before transmission.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: April 22, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yong-Jun Kwak, Hwan-Joon Kwon, Ju-Ho Lee, Jin-Kyu Han
  • Patent number: 8665855
    Abstract: A method and an apparatus for transmitting uplink information items having various characteristics by using a single Fast Fourier Transform (FFT) block. The method includes determining whether uplink signaling information exists to be transmitted when uplink data exists to be transmitted; multiplexing the uplink data and control information for the uplink data and transmitting multiplexed data through a first frequency resource allocated for the uplink data, when no uplink signaling information exists; multiplexing the uplink data, control information for the uplink data, and the uplink signaling information, and transmitting multiplexed data through a first frequency resource allocated for the uplink data, when the uplink signaling information exists; and transmitting the uplink signaling information through a second frequency resource allocated for the uplink signaling information, when no uplink data is to be transmitted and the uplink signaling information exists to be transmitted.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: March 4, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yong-Jun Kwak, Ju-Ho Lee, Joon-Young Cho
  • Patent number: RE44860
    Abstract: A paging apparatus and method in a mobile communication system providing an MBMS (Multimedia Broadcast Multicast Service). In the mobile communication system, to page a UE for a first service through a primary carrier during a second service in progress through a secondary carrier, a PICH (Paging Indication Channel) transmitter in a Node B transmits paging indication information to the UE through the primary carrier by oscillating the primary carrier as a transmission frequency. A PCH (Paging Channel) transmitter transmits paging information to the UE through the primary carrier or the secondary carrier by oscillating the primary carrier or the secondary carrier as the transmission frequency under a predetermined control. A PBMSCH (Physical Broadcast Multicast Shared Channel) transmitter transmits data of the second service through the secondary carrier by oscillating the secondary carrier as the transmission frequency.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: April 22, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Yong-Jun Kwak, Hyeon-Woo Lee, Myeong-Sook Seo, Joon-Goo Park, Sung-Ho Choi, Sung-Hoon Kim