Patents by Inventor Doo Hyun Seong

Doo Hyun Seong 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 to mitigate interference
    Patent number: 9136988
    Abstract: A method of transmitting data using hybrid automatic repeat request (HARQ) is provided. The method includes transmitting an initial data, receiving a retransmission request for the initial data, generating a retransmission data by shifting the phase of the initial data on signal constellation and transmitting the retransmission data. Inter-cell interference or intra-cell interference can be mitigated.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: September 15, 2015
    Assignee: LG Electronics Inc.
    Inventors: Hyung Ho Park, Min Seok Oh, Doo Hyun Seong, Jin Soo Choi, Jae Hoon Chung, Sung Ho Moon
  • Method for performing ranging procedure
    Patent number: 8462726
    Abstract: A method for performing a ranging procedure includes transmitting a ranging request message through a randomly selected ranging slot to a base station, the ranging request message comprising a randomly selected ranging code, and receiving a ranging response message including collision information which informs that collision occurs when at least two user equipments transmit the same ranging code to the base station through the same ranging slot. Delay in the ranging can be reduced.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: June 11, 2013
    Assignee: LG Electronics Inc.
    Inventors: Kyu Jin Park, Minseok Oh, Hyung Ho Park, Doo Hyun Seong, Eun Jong Lee, Jin Soo Choi, Jae Hoon Chung, Seong Ho Moon
  • Method of performing channel sounding in frequency duplex system
    Patent number: 8179824
    Abstract: A method of performing channel sounding in a frequency division duplex (FDD) system in which an uplink frame and a downlink frame use different frequency bands includes dividing a transmission bandwidth with respect to the uplink frame into a plurality of sounding zones, allocating at least one of the plurality of sounding zones to a user equipment and receiving a sounding signal from the user equipment through the allocated sounding zone. Inter-cell interference can be mitigated and overhead due to transmission of the sounding signal can be reduced.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: May 15, 2012
    Assignee: LG Electronics Inc.
    Inventors: Doo Hyun Seong, Min Seok Oh, Jin Soo Choi, Seong Ho Moon, Eun Jong Lee, Kyu Jin Park, Jae Hoon Chung, Hyung Ho Park
  • METHOD OF PERFORMING CHANNEL SOUNDING IN FREQUENCY DUPLEX SYSTEM
    Publication number: 20100220614
    Abstract: A method of performing channel sounding in a frequency division duplex (FDD) system in which an uplink frame and a downlink frame use different frequency bands includes dividing a transmission bandwidth with respect to the uplink frame into a plurality of sounding zones, allocating at least one of the plurality of sounding zones to a user equipment and receiving a sounding signal from the user equipment through the allocated sounding zone. Inter-cell interference can be mitigated and overhead due to transmission of the sounding signal can be reduced.
    Type: Application
    Filed: May 2, 2008
    Publication date: September 2, 2010
    Inventors: Doo Hyun Seong, Min Seok Oh, Jin Soo Choi, Seong Ho Moon, Eun Jong Lee, Kyu Jin Park, Jae Hoon Chung, Hyung Ho Park
  • METHOD FOR PERFORMING RANGING PROCEDURE
    Publication number: 20100157933
    Abstract: A method for performing a ranging procedure includes transmitting a ranging request message through a randomly selected ranging slot to a base station, the ranging request message comprising a randomly selected ranging code, and receiving a ranging response message including collision information which informs that collision occurs when at least two user equipments transmit the same ranging code to the base station through the same ranging slot. Delay in the ranging can be reduced.
    Type: Application
    Filed: July 4, 2008
    Publication date: June 24, 2010
    Inventors: Kyu Jin Park, Minseok Oh, Hyung Ho Park, Doo Hyun Seong, Eun Jong Lee, Jin Soo Choi, Jae Hoon Chung, Seong Ho Moon
  • METHOD OF TRANSMITING DATA TO MITIGATE INTRERENCE
    Publication number: 20100091902
    Abstract: A method of transmitting data using hybrid automatic repeat request (HARQ) is provided. The method includes transmitting an initial data, receiving a retransmission request for the initial data, generating a retransmission data by shifting the phase of the initial data on signal constellation and transmitting the retransmission data. Inter-cell interference or intra-cell interference can be mitigated.
    Type: Application
    Filed: January 25, 2008
    Publication date: April 15, 2010
    Inventors: Hyung Ho Park, Min Seok Oh, Doo Hyun Seong, Jin Soo Choi, Jae Hoon Chung, Seung Ho Moon