Patents by Inventor Sung-Sang You

Sung-Sang You 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: 9467878
    Abstract: A method and an apparatus for testing a throughout of a wireless access point apparatus are provided. The apparatus includes a receiver which is configured to receive a test start request signal and a test packet transmission condition change request signal, a test signal generator which is configured to generate a test packet signal; a transmission condition adjuster configured to adjust the transmission condition of the test packet signal; a transmitter configured to transmit the test packet signal to the neighboring access point apparatus under the transmission condition, which is adjusted by the transmission condition adjuster; and a test executor configured to execute a test having a predetermined sequence so as to execute a throughput test for the neighboring access point apparatus with regards to receiving the test packet signal.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: October 11, 2016
    Assignee: KT Corporation
    Inventors: Jae Ho Chung, Sung Sang You, Jae Seon Jang, Yung Ha Ji
  • Patent number: 9241290
    Abstract: Provided are apparatus and method for controlling handover to prevent femtocell interference. The apparatus may include an event receiving module, a handover determining module, and an inter-frequency processing module. The event receiving module may be configured to receive a control message from user equipment. The handover determining module may be configured to analyze the received control message and determine whether the control message includes a request of inter-cell handover from a first cell base station of the first cell to a second cell base station of one of the second cells. The inter-frequency processing module may be configured to perform inter-frequency handover using an unshared frequency when the handover determining module determines that the control message includes the request of inter-cell handover.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: January 19, 2016
    Assignee: KT CORPORATION
    Inventors: Byoung-Jin Choi, Tae-Won Ban, Chang-Yong Ahn, Sung-Sang You, Kyeong-Soo Lee, Hee-Jun Lee
  • Patent number: 9055498
    Abstract: Described embodiments provide for handover in a long term evolution (LTE) communication network. A LTE macrocell base station may receive a measurement report from user equipment while providing a communication service to the user equipment located within a service area of the LTE macrocell base station, and determine whether or not the neighbor cell is a LTE macrocell or a LTE femtocell based on the measurement report. The LTE macrocell base station may initiate hand-over of the user equipment to a neighbor WCDMA macrocell base station when the neighbor cell is determined as the LTE femtocell.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: June 9, 2015
    Assignee: KT CORPORATION
    Inventors: Tae-Won Ban, Chang-Yong Ahn, Sung-Sang You, Hyun-Beom Lee, Hee-Jun Lee, Byoung-Jin Choi
  • Publication number: 20140323134
    Abstract: Provided are apparatus and method for controlling handover to prevent femtocell interference. The apparatus may include an event receiving module, a handover determining module, and an inter-frequency processing module. The event receiving module may be configured to receive a control message from user equipment. The handover determining module may be configured to analyze the received control message and determine whether the control message includes a request of inter-cell handover from a first cell base station of the first cell to a second cell base station of one of the second cells. The inter-frequency processing module may be configured to perform inter-frequency handover using an unshared frequency when the handover determining module determines that the control message includes the request of inter-cell handover.
    Type: Application
    Filed: July 11, 2014
    Publication date: October 30, 2014
    Inventors: Byoung-Jin CHOI, Tae-Won BAN, Chang-Yong AHN, Sung-Sang YOU, Kyeong-Soo LEE, Hee-Jun LEE
  • Patent number: 8787260
    Abstract: Provided are apparatus and method for setting a cyclic prefix length according to a type of a base station. The apparatus may include a memory, a receiver, a selector, and an inserter. The receiver may be configured to store and to manage a plurality of prefix lengths associated with base station types. The receiver may be configured to receive base station information from a base station. The selector may be configured to select a prefix length from the plurality of prefix length based on the received base station information. The inserter may be configured to insert a cyclic prefix having the determined prefix length in a guard interval of a transmission frame.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: July 22, 2014
    Assignee: KT Corporation
    Inventors: Tae-Won Ban, Chang-Yong Ahn, Sung-Sang You, Hyun-Beom Lee, Hee-Jun Lee, Byoung-Jin Choi
  • Publication number: 20140119222
    Abstract: A method and an apparatus for testing a throughout of a wireless access point apparatus are provided. The apparatus includes a receiver which is configured to receive a test start request signal and a test packet transmission condition change request signal, a test signal generator which is configured to generate a test packet signal; a transmission condition adjuster configured to adjust the transmission condition of the test packet signal; a transmitter configured to transmit the test packet signal to the neighboring access point apparatus under the transmission condition, which is adjusted by the transmission condition adjuster; and a test executor configured to execute a test having a predetermined sequence so as to execute a throughput test for the neighboring access point apparatus with regards to receiving the test packet signal.
    Type: Application
    Filed: October 19, 2011
    Publication date: May 1, 2014
    Applicant: KT CORPORATION
    Inventors: Jae Ho Chung, Sung Sang You, Jae Seon Jang, Yung Ha Ji
  • Publication number: 20130034081
    Abstract: Described embodiments provide for handover in a long term evolution (LTE) communication network. A LTE macrocell base station may receive a measurement report from user equipment while providing a communication service to the user equipment located within a service area of the LTE macrocell base station, and determine whether or not the neighbor cell is a LTE macrocell or a LTE femtocell based on the measurement report. The LTE macrocell base station may initiate hand-over of the user equipment to a neighbor WCDMA macrocell base station when the neighbor cell is determined as the LTE femtocell.
    Type: Application
    Filed: July 19, 2012
    Publication date: February 7, 2013
    Inventors: Tae-Won BAN, Chang-Yong AHN, Sung-Sang You, Hyun-Beom Lee, Hee-Jun Lee, Byoung-Jin Choi
  • Publication number: 20120263108
    Abstract: Provided are apparatus and method for setting a cyclic prefix length according to a type of a base station. The apparatus may include a memory, a receiver, a selector, and an inserter. The receiver may be configured to store and to manage a plurality of prefix lengths associated with base station types. The receiver may be configured to receive base station information from a base station. The selector may be configured to select a prefix length from the plurality of prefix length based on the received base station information. The inserter may be configured to insert a cyclic prefix having the determined prefix length in a guard interval of a transmission frame.
    Type: Application
    Filed: April 16, 2012
    Publication date: October 18, 2012
    Inventors: Tae-Won BAN, Chang-Yong AHN, Sung-Sang YOU, Hyun-Beom LEE, Hee-Jun LEE, Byoung-Jin CHOI
  • Publication number: 20120214495
    Abstract: Provided are apparatus and method for controlling handover to prevent femtocell interference. The apparatus may include an event receiving module, a handover determining module, and an inter-frequency processing module. The event receiving module may be configured to receive a control message from user equipment. The handover determining module may be configured to analyze the received control message and determine whether the control message includes a request of inter-cell handover from a first cell base station of the first cell to a second cell base station of one of the second cells. The inter-frequency processing module may be configured to perform inter-frequency handover using an unshared frequency when the handover determining module determines that the control message includes the request of inter-cell handover.
    Type: Application
    Filed: February 17, 2012
    Publication date: August 23, 2012
    Inventors: Byoung-Jin Choi, Tae-Won Ban, Chang-Yong Ahn, Sung-Sang You, Kyeong-Soo Lee, Hee-Jun Lee