Patents by Inventor Eui-Seok Song

Eui-Seok Song 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 and method for processing signals in a distributed antenna system
    Patent number: 8442430
    Abstract: An apparatus and method for processing signals in a distributed antenna system. The method includes receiving, by a Base Station (BS), Channel State Information (CSI) from Mobile Stations (MSs) located within a coverage area of the BS or a coverage of Relay Stations (RSs) connected to the BS; multiplying signals for transmission to the MSs by beamforming vectors by using the CSI; and transmitting the multiplied signals to the MSs.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: May 14, 2013
    Assignees: Samsung Electronics Co., Ltd, Industry-University Cooperation Foundation Sogang University
    Inventors: Seong-Taek Hwang, Won-Jin Sung, Jae-Won Kim, Eui-Seok Song
  • Signal combining apparatus satisfying maximum transmission capacity in cellular system employing distributed antennas and resource allocation method using the same
    Patent number: 8140006
    Abstract: Disclosed is a signal combining apparatus and a resource allocation method using the same in a cellular system using distributed antennas. The resource allocation method includes detecting a channel transmission capacity when a signal is transmitted from a single Relay Station (RS) to a Mobile Station (MS), by a Base Station (BS), detecting a channel transmission capacity when transmitting a signal produced by using signal combining by two or more RSs to the MS, by the BS, selecting a channel transmission capacity with a larger gain between the detected channel transmission capacity of the single RS and the detected channel transmission capacity of the two or more RSs, by the BS; and selecting the signal transmitted by the single RS or the signal produced by using the signal combining by the two or more RSs having the selected channel transmission capacity with the larger gain, and then transmitting the selected signal to the MS.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: March 20, 2012
    Assignees: Samsung Electronics Co., Ltd., Industry-University Cooperation Foundation Sogang University
    Inventors: Ki-Uk Song, Seong-Taek Hwang, Won-Jin Sung, Jin-Woo Choe, Jong-Hyun Park, Eui-Seok Song
  • APPARATUS AND METHOD FOR PROCESSING SIGNALS IN A DISTRIBUTED ANTENNA SYSTEM
    Publication number: 20090247200
    Abstract: An apparatus and method for processing signals in a distributed antenna system. The method includes receiving, by a Base Station (BS), Channel State Information (CSI) from Mobile Stations (MSs) located within a coverage area of the BS or a coverage of Relay Stations (RSs) connected to the BS; multiplying signals for transmission to the MSs by beamforming vectors by using the CSI; and transmitting the multiplied signals to the MSs.
    Type: Application
    Filed: March 26, 2009
    Publication date: October 1, 2009
    Applicants: SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-UNIVERSITY COOPERATION FOUNDATION SOGANG UNIVERISTY
    Inventors: Seong-Taek HWANG, Won-Jin Sung, Jae-Won Kim, Eui-Seok Song
  • SIGNAL COMBINING APPARATUS SATISFYING MAXIMUM TRANSMISSION CAPACITY IN CELLULAR SYSTEM EMPLOYING DISTRIBUTED ANTENNAS AND RESOURCE ALLOCATION METHOD USING THE SAME
    Publication number: 20090017835
    Abstract: Disclosed is a signal combining apparatus and a resource allocation method using the same in a cellular system using distributed antennas. The resource allocation method includes detecting a channel transmission capacity when a signal is transmitted from a single Relay Station (RS) to a Mobile Station (MS), by a Base Station (BS), detecting a channel transmission capacity when transmitting a signal produced by using signal combining by two or more RSs to the MS, by the BS, selecting a channel transmission capacity with a larger gain between the detected channel transmission capacity of the single RS and the detected channel transmission capacity of the two or more RSs, by the BS; and selecting the signal transmitted by the single RS or the signal produced by using the signal combining by the two or more RSs having the selected channel transmission capacity with the larger gain, and then transmitting the selected signal to the MS.
    Type: Application
    Filed: July 10, 2008
    Publication date: January 15, 2009
    Inventors: Ki-Uk SONG, Seong-Taek HWANG, Won-Jin SUNG, Jin-Woo CHOE, Jong-Hyun PARK, Eui-Seok SONG