Patents by Inventor Sung-Tak Jang

Sung-Tak Jang 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: 8358618
    Abstract: A method for operating a Base Station (BS) in a wireless communication system includes, when a bandwidth request message is received from a Mobile Station (MS), whether a resource allocated to the MS exists is determined. When the resource allocated to the MS does not exist, a resource is temporarily allocated to the MS. A message indicating a network initial entry is transmitted to the MS using the temporarily allocated resource.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: January 22, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Tak Jang, Chang-Yeon Kim
  • Patent number: 8245093
    Abstract: An Automatic Retransmission reQuest (ARQ) data block reception apparatus and method in a communication system is provided. In the ARQ method, an ARQ feedback Information Element (IE) is transmitted to an ARQ data block transmission apparatus. The ARQ feedback IE includes a first field for indicating a Connection IDentifier (CID) of an ARQ connection, a second field for indicating the presence/absence of an additional ARQ feedback IE after the ARQ feedback IE, a third field for indicating a type of an Acknowledgement (ACK) MAP included in the ARQ feedback IE, a fourth field for indicating a Block Sequence Number (BSN) of an ARQ data block, and m ACK MAP fields. The m ACK MAP fields each include information indicating presence/absence of an additional ACK MAP field after a corresponding ACK MAP field, and an ACK MAP indicating success/failure in normal reception for each of n ARQ data blocks, wherein m and n each denote an integer greater than or equal to 1.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: August 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Young Kim, Young-Bin Chang, Won-II Lee, Sung-Tak Jang
  • Patent number: 8050682
    Abstract: Disclosed is a method for delivering buffer status information to a target base station, to which a mobile station has decided to hand over, by a serving base station in a communication system. The method includes the steps of constructing buffer status information containing a first parameter indicating the number of a smallest packet among packets within a predetermined section stored in a buffer, a second parameter indicating the number of a packet to be transmitted at a next point of time, a third parameter indicating the number of a first packet, the lifetime of which has not yet expired, and a fourth parameter indicating whether or not an instruction to initialize the buffer status information has been transmitted to the mobile station; and transmitting a message containing the constructed buffer status information to the target base station.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: November 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Shin Park, Ji-Cheol Lee, Hyoung-Kyu Lim, Seon-Goo Hwang, Sung-Tak Jang
  • Publication number: 20100135227
    Abstract: A method for operating a Base Station (BS) in a wireless communication system includes, when a bandwidth request message is received from a Mobile Station (MS), whether a resource allocated to the MS exists is determined. When the resource allocated to the MS does not exist, a resource is temporarily allocated to the MS. A message indicating a network initial entry is transmitted to the MS using the temporarily allocated resource.
    Type: Application
    Filed: November 23, 2009
    Publication date: June 3, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung-Tak Jang, Chang-Yeon Kim
  • Publication number: 20090233606
    Abstract: Disclosed is a method for delivering buffer status information to a target base station, to which a mobile station has decided to hand over, by a serving base station in a communication system. The method includes the steps of constructing buffer status information containing a first parameter indicating the number of a smallest packet among packets within a predetermined section stored in a buffer, a second parameter indicating the number of a packet to be transmitted at a next point of time, a third parameter indicating the number of a first packet, the lifetime of which has not yet expired, and a fourth parameter indicating whether or not an instruction to initialize the buffer status information has been transmitted to the mobile station; and transmitting a message containing the constructed buffer status information to the target base station.
    Type: Application
    Filed: April 16, 2008
    Publication date: September 17, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jung-Shin Park, Ji-Cheol Lee, Hyoung-Kyu Lim, Seon-Goo Hwang, Sung-Tak Jang
  • Publication number: 20090094498
    Abstract: An Automatic Retransmission reQuest (ARQ) data block reception apparatus and method in a communication system is provided. In the ARQ method, an ARQ feedback Information Element (IE) is transmitted to an ARQ data block transmission apparatus. The ARQ feedback IE includes a first field for indicating a Connection IDentifier (CID) of an ARQ connection, a second field for indicating the presence/absence of an additional ARQ feedback IE after the ARQ feedback IE, a third field for indicating a type of an Acknowledgement (ACK) MAP included in the ARQ feedback IE, a fourth field for indicating a Block Sequence Number (BSN) of an ARQ data block, and m ACK MAP fields. The m ACK MAP fields each include information indicating presence/absence of an additional ACK MAP field after a corresponding ACK MAP field, and an ACK MAP indicating success/failure in normal reception for each of n ARQ data blocks, wherein m and n each denote an integer greater than or equal to 1.
    Type: Application
    Filed: September 30, 2008
    Publication date: April 9, 2009
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Jae-Young KIM, Young-Bin CHANG, Won-Il LEE, Sung-Tak JANG