Patents by Inventor Hoiyoon Jung

Hoiyoon Jung 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: 11140690
    Abstract: A method for transmitting an uplink signal in an unlicensed band by a terminal is provided. The terminal receives first scheduling information that schedules one or more uplink subframes, from a base station in a first downlink subframe. The terminal receives second scheduling information that determines a transmission time point of the uplink signal, from the base station in a second downlink subframe after the first downlink subframe. The terminal transmits the uplink signal in a first uplink subframe corresponding to the transmission time point among the one or more uplink subframes.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: October 5, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Hoiyoon Jung, Sungjin Yoo, Seung Keun Park
  • Publication number: 20210168853
    Abstract: Disclosed herein is a method for transmitting, by a terminal, a sounding reference signal (SRS). The terminal receives a grant for uplink multiple subframes from a base station. The terminal determines a first subframe for an SRS transmission of the terminal among the uplink multiple subframes on the basis of SRS transmission position information received from the base station. Further, the terminal transmits the SRS in the first subframe.
    Type: Application
    Filed: February 15, 2021
    Publication date: June 3, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun UM, Hoiyoon JUNG, Seung Keun PARK, Sungjin YOO
  • Patent number: 10925085
    Abstract: Disclosed herein is a method for transmitting, by a terminal, a sounding reference signal (SRS). The terminal receives a grant for uplink multiple subframes from a base station. The terminal determines a first subframe for an SRS transmission of the terminal among the uplink multiple subframes on the basis of SRS transmission position information received from the base station. Further, the terminal transmits the SRS in the first subframe.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: February 16, 2021
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Hoiyoon Jung, Seung Keun Park, Sungjin Yoo
  • Publication number: 20180323917
    Abstract: Disclosed herein is a method for transmitting, by a terminal, a sounding reference signal (SRS). The terminal receives a grant for uplink multiple subframes from a base station. The terminal determines a first subframe for an SRS transmission of the terminal among the uplink multiple subframes on the basis of SRS transmission position information received from the base station. Further, the terminal transmits the SRS in the first subframe.
    Type: Application
    Filed: December 28, 2016
    Publication date: November 8, 2018
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun UM, Hoiyoon JUNG, Seung Keun PARK, Sungjin YOO
  • Publication number: 20180317244
    Abstract: A method for transmitting an uplink signal in an unlicensed band by a terminal is provided. The terminal receives first scheduling information that schedules one or more uplink subframes, from a base station in a first downlink subframe. The terminal receives second scheduling information that determines a transmission time point of the uplink signal, from the base station in a second downlink subframe after the first downlink subframe. The terminal transmits the uplink signal in a first uplink subframe corresponding to the transmission time point among the one or more uplink subframes.
    Type: Application
    Filed: January 26, 2017
    Publication date: November 1, 2018
    Applicant: Electronics And Telecommunications Research Institute
    Inventors: Jung Sun UM, Hoiyoon JUNG, Sungjin YOO, Seung Keun PARK
  • Patent number: 10110428
    Abstract: A communication node configures an unlicensed band transmission burst including a plurality of subframes in consideration of an occupancy state of a channel of an unlicensed band and transmits the unlicensed band transmission burst through the unlicensed band. In this case, at least one subframe of the plurality of subframes has a different type from the remaining subframes.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: October 23, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Sun Um, Sungjin Yoo, Hoiyoon Jung, Seung Keun Park
  • Patent number: 9814078
    Abstract: A wireless device of a communication system randomly selects a backoff counter at a contention window interval corresponding to a contention window size that is determined according to a backoff stage, attempts packet transmission, when the backoff counter becomes 0 while reducing the backoff counter, when a radio channel is in an idle status, and increases the contention window size while increasing the backoff stage by 1 according to a first predetermined condition. In this case, as the backoff stage increases, a contention window size has a concave down increasing form.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 7, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seung Keun Park, Sungjin Yoo, Jung Sun Um, Hoiyoon Jung, Hyung Do Choi
  • Publication number: 20170093620
    Abstract: A communication node configures an unlicensed band transmission burst including a plurality of subframes in consideration of an occupancy state of a channel of an unlicensed band and transmits the unlicensed band transmission burst through the unlicensed band. In this case, at least one subframe of the plurality of subframes has a different type from the remaining subframes.
    Type: Application
    Filed: September 23, 2016
    Publication date: March 30, 2017
    Inventors: Jung Sun UM, Sungjin YOO, Hoiyoon JUNG, Seung Keun PARK
  • Publication number: 20160269303
    Abstract: A wireless device of a communication system randomly selects a backoff counter at a contention window interval corresponding to a contention window size that is determined according to a backoff stage, attempts packet transmission, when the backoff counter becomes 0 while reducing the backoff counter, when a radio channel is in an idle status, and increases the contention window size while increasing the backoff stage by 1 according to a first predetermined condition. In this case, as the backoff stage increases, a contention window size has a concave down increasing form.
    Type: Application
    Filed: March 9, 2016
    Publication date: September 15, 2016
    Inventors: Seung Keun PARK, Sungjin YOO, Jung Sun UM, Hoiyoon JUNG, Hyung Do CHOI
  • Publication number: 20140307639
    Abstract: An apparatus for allocating channels in a communication system includes: a receiving unit configured to receive terminal information from a plurality of terminals, the terminal information containing information on data transmission/reception schemes of the terminals; a checking unit configured to check the data transmission/reception schemes of the terminals and check interference at channels allocated to the terminals; and an allocating unit configured to allocate primary and secondary channels to the terminals based on the data transmission/reception schemes of the terminals, change the primary and secondary channels based on the interference, and allocate the changed channels to the terminals; and a transmitting unit configured to transmit channel allocation information on the primary and secondary channels allocated to the terminals to the terminals.
    Type: Application
    Filed: July 17, 2013
    Publication date: October 16, 2014
    Inventors: Hoiyoon JUNG, Jungsun UM, Sunghyun HWANG, Jaehyun PARK, Sunmin LIM, Byungjang JEONG
  • Patent number: 8594585
    Abstract: Provided is a method of sharing a data transceiver, a data transceiver antenna, a sensing receiver, and a sensing antenna, and a wireless communication system. The data transceiver and the sensing receiver, or the data transceiver antenna and the sensing antenna may be flexibly shared based on a condition. During a period where a transceiver and an antenna are utilized, the transceiver and the antenna may be utilized for different purposes. The transceiver and the antenna may be flexibly shared to increase efficiency in using the transceiver and the antenna, and thus, a spectrum sensing and a data transmission and reception performed in a system may be improved.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: November 26, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hoiyoon Jung, Myung Sun Song, Gwangzeen Ko, Sunmin Lim, Sang-Won Kim
  • Publication number: 20110130101
    Abstract: Provided is a method of sharing a data transceiver, a data transceiver antenna, a sensing receiver, and a sensing antenna, and a wireless communication system. The data transceiver and the sensing receiver, or the data transceiver antenna and the sensing antenna may be flexibly shared based on a condition. During a period where a transceiver and an antenna are utilized, the transceiver and the antenna may be utilized for different purposes. The transceiver and the antenna may be flexibly shared to increase efficiency in using the transceiver and the antenna, and thus, a spectrum sensing and a data transmission and reception performed in a system may be improved.
    Type: Application
    Filed: July 1, 2010
    Publication date: June 2, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hoiyoon JUNG, Myung Sun SONG, Gwangzeen KO, Sunmin LIM, Sang-Won KIM
  • Patent number: 7626503
    Abstract: A bi-slot tree based tag identification method in RFID systems includes (a) transmitting an inquiry of (n?1) bits to each tag at the reader; (b) deciding whether the inquiry of (n?1) bits are identical with first (n?1) bits of each tag ID when receiving the inquiry of (n?1) bits at each tag within a readable range of the reader; (c) transmitting each tag ID by one bit from (n+1)th bit to last bit thereof to the reader through different time slots based on nth bit value of each tag ID at the tags whose first (n?1) bits are identical with the inquiry of (n?1) bits; and (d) at the reader, checking whether there is a collision among the tag IDs received from the tags and identifying each tag ID of the tags based on the check result.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: December 1, 2009
    Assignee: Research and Industrial Cooperation Group
    Inventors: Ji Hwan Choi, Hyuckjae Lee, Dongwook Lee, Hyoungsuk Jeon, Hoiyoon Jung
  • Publication number: 20080106382
    Abstract: A bi-slot tree based tag identification method in RFID systems includes (a) transmitting an inquiry of (n?1) bits to each tag at the reader; (b) deciding whether the inquiry of (n?1) bits are identical with first (n?1) bits of each tag ID when receiving the inquiry of (n?1) bits at each tag within a readable range of the reader; (c) transmitting each tag ID by one bit from (n+1)th bit to last bit thereof to the reader through different time slots based on nth bit value of each tag ID at the tags whose first (n?1) bits are identical with the inquiry of (n?1) bits; and (d) at the reader, checking whether there is a collision among the tag IDs received from the tags and identifying each tag ID of the tags based on the check result.
    Type: Application
    Filed: December 20, 2006
    Publication date: May 8, 2008
    Applicant: RESEARCH AND INDUSTRIAL COOPERATION GROUP
    Inventors: Ji Hwan Choi, Hyuckjae Lee, Dongwook Lee, Hyoungsuk Jeon, Hoiyoon Jung