Patents by Inventor Geun-Hwi Lim

Geun-Hwi Lim 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).

  • Publication number: 20100146353
    Abstract: A method is provided for transmitting a Media Access Protocol (MAP) message in a wireless communication system. A base station transmits the MAP message including operation mode information indicating a data burst allocation scheme, to a mobile station. The mobile station identifies a data burst according to the operation mode information included in the MAP message received from the base station.
    Type: Application
    Filed: February 17, 2010
    Publication date: June 10, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Geun-Hwi Lim, Jun-Hyung Kim, Hong-Sung Chang, Yong Chang
  • Patent number: 7693096
    Abstract: A method is provided for transmitting a MAP message in a wireless communication system. A base station transmits the MAP message including operation mode information indicating a data burst allocation scheme, to a mobile station. The mobile station identifies a data burst according to the operation mode information included in the MAP message received from the base station.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: April 6, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Geun-Hwi Lim, Jun-Hyung Kim, Hong-Sung Chang, Yong Chang
  • Patent number: 7653393
    Abstract: Disclosed is a method and system for forming and transmitting to an MS a broadcast message for notifying information of neighbor BSs in a BWA communication system. The method includes scanning neighbor base stations adjacent to the serving base station, collecting information of the scanned neighbor base stations, comparing a size of the information of the scanned neighbor base stations with a size of a frame for carrying the information of the neighbor base stations constructing at least one broadcast message that includes the information of the neighbor base stations according to a result of the comparison, setting up fields of the constructed broadcast message according to information included in the constructed broadcast message and broadcasting the broadcast message including the setup fields.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: January 26, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jun-Hyung Kim, Tae-Won Kim, Hong-Sung Chang, Yong Chang, Geun-Hwi Lim
  • Publication number: 20100008327
    Abstract: An apparatus and a method for providing a handover using an Mobile Station IDentifier (MS ID) in a wireless communication system are provided. In the method, at least one Base Station (BS) ID index assigned to a serving base station by at least one neighbor base station is confirmed. A target base station for a handover is confirmed. A temporary MS ID is formed using a BS ID index assigned to the serving base station by the target base station, and an MS ID index assigned to the mobile station by the serving base station. A network re-entry procedure with the target base station is performed using the temporary MS ID. Communication with the serving base station is performed until the network re-entry procedure with the target base station is completed.
    Type: Application
    Filed: July 8, 2009
    Publication date: January 14, 2010
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Jung-Je Son, Sung-Jin Lee, Jae-Hyuk Jang, Geun-Hwi Lim
  • Patent number: 7616593
    Abstract: A method and system are provided for transmitting broadcast service data in a wireless communication system using an Orthogonal Frequency Division Multiple Access (OFDMA) scheme in which data transmission is achieved through a downlink and an uplink within one frame. The system being connected to a broadcast server. The system and method include allocating a connection identifier (CID) to each broadcast service for identification of a broadcast service packet transmitted over the downlink, and transmitting broadcast service information for each broadcast service; and receiving a broadcast packet from the broadcast server, and transmitting a physical layer transmission information element (DL-MAP) including a broadcast service CID for the broadcast packet through the downlink0.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: November 10, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Soo Jung, Yu-Chul Kim, Dae-Gyun Kim, Beom-Sik Bae, Yong Chang, Geun-Hwi Lim, Jung-Je Son
  • Patent number: 7616598
    Abstract: A system for providing communication when a mobile station moves between a wireless LAN system and a mobile communication system. A packet data service node provides a packet data service between an IP network and the mobile station when the mobile station accesses the mobile communication system. A packet control function provides the packet data service between a correspondent node connected to the IP network and the mobile station when the mobile station previously connected to the mobile communication system is connected to an access point, and provides the packet data service between the correspondent node connected to the IP network and the mobile station when the mobile station previously connected to the access point is connected to a base station system. An interworking server connected between the access point of the wireless LAN system and the packet control function of the mobile communication system.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: November 10, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong-Sung Chang, Tae-Won Kim, Sang-Do Lee, Geun-Hwi Lim
  • Patent number: 7603121
    Abstract: Disclosed is a method for performing handoff by a Mobile Station (MS) in a Broadband Wireless Access (BWA) communication system including a serving Base Station (BS) and at least one neighbor BS adjacent to the serving BS, the serving BS currently providing a service to the MS. The method including receiving physical layer information for communication from said at least one neighbor BS by the serving BS; combining by the serving BS the received physical layer information of said at least one neighbor BS, inserting the physical layer information into an advertisement message, and transmitting the advertisement message to the MS; and receiving by the MS the advertisement message, and performing a handoff according to the physical layer information of said at least one neighbor BS included in the advertisement message when the handoff occurs.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: October 13, 2009
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jun-Hyung Kim, Geun-Hwi Lim, Jung-Won Kim, Hong-Sung Chang, Yong Chang, Joon-Ho Park
  • Patent number: 7596114
    Abstract: Disclosed are a system for transmitting data using a band AMC in a broadband wireless orthogonal frequency multiplexing access system and a method thereof. In a broadband wireless communication system, a method for allocating data bursts to a mobile subscriber station according to channel state in a broadband wireless communication system, the method including transmitting allocation information to the mobile subscriber station, the allocation information including information about a sub frequency band containing the data bursts allocated to the mobile subscriber station and information about the number of band AMC subchannels allocated to the mobile subscriber station in the sub frequency band and receiving the data bursts from the mobile subscriber station according to the allocation information.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: September 29, 2009
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jung-Shin Park, Geun-Hwi Lim, Hong-Sung Chang, Jae-Jeong Shim
  • Publication number: 20090219878
    Abstract: An apparatus and method for persistent allocation in a wireless communication system are provided. An operation method of a Base Station (BS) includes determining if decoding information for one or more persistent allocations assigned to one or more corresponding Mobile Stations (MSs) is updated, if the decoding information is updated, generating a signaling message to signal the update of the decoding information, and transmitting the signaling message through a DL MAP. The signaling message includes an R_CID and ACID associated with at least one persistent allocation to which the updated decoding information is to be applied.
    Type: Application
    Filed: February 27, 2009
    Publication date: September 3, 2009
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Chang-Yoon OH, Won-Il ROH, Geun-Hwi LIM
  • Publication number: 20090191860
    Abstract: An apparatus and method for operating a base station and a mobile station in a communication system are provided. The operation of the base station includes persistently allocating resources to at least one mobile station and transmitting, in a current frame, a control information message including a change counter flag indicating whether persistent resource allocation information, transmitted in a previous frame, is changed. An operation of the mobile station includes receiving a control information message, including a change counter flag indicating whether persistent resource allocation information included in a control information message transmitted in a previous frame is changed, from a base station in a current frame and checking a value of the change counter flag.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 30, 2009
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Chang-Yoon OH, Geun-Hwi LIM, Won-Il ROH
  • Publication number: 20090190568
    Abstract: A method of operating a Base Station (BS) in a broadband wireless communication system to resume an extended real-time Polling Service (ertPS) is provided. The method of operating the BS includes detecting a codeword received through a Channel Quality Indicator (CQI) channel, and upon receiving a CQI CHannel (CQICH) codeword for requesting resumption of an extended real-time Polling Service (ertPS) connection from a Mobile Station (MS), allocating to the MS an uplink resource corresponding to the largest maximum sustainable traffic rate of at least one ertPS connection established to the MS.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 30, 2009
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Yeong-Moon SON, Won-Il ROH, Jae-Jeong SHIM, Geun-Hwi LIM, Sung-Jin LEE
  • Publication number: 20090186595
    Abstract: A system and method for providing an emergency service in a communication system is provided. A method for providing an emergency service by an idle mode Mobile Station (MS) in a communication system includes receiving, from a Base Station (BS), a broadcast message including information on a time duration in which an emergency service message will be transmitted after waking up at a start timing point of a paging listening interval, transitioning into an idle state when a start timing point of the time duration in which the emergency service message will be transmitted is later than a timing point at which the paging listening interval is terminated, and waking up at the start timing point of the time duration in which the emergency service message will be transmitted after transitioning into the idle state.
    Type: Application
    Filed: January 21, 2009
    Publication date: July 23, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Yeong-Moon SON, Jung-Hoon CHEON, Chan-Ho MIN, Hyun-Jeong KANG, Geun-Hwi LIM
  • Publication number: 20090135805
    Abstract: A method is provided for synchronizing Connection IDentifiers (CIDs) of a first station and a second station in a communication system.
    Type: Application
    Filed: November 20, 2008
    Publication date: May 28, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ok-Seon Lee, Yeong-Moon Son, Jae-Jeong Shim, Jong-Hyung Kwun, Geun-Hwi Lim, Jung-Hoon Cheon
  • Publication number: 20090103487
    Abstract: A method for allocating resources by a Base Station (BS) in a wireless communication system is provided. The method includes determining use/nonuse of each of a plurality of Resource Blocks (RBs), which are allocated using a persistent allocation scheme, and transmitting resource allocation information indicating use/nonuse of each of the plurality of RBs to a plurality of Mobile Stations (MSs) according to a result of the determination.
    Type: Application
    Filed: October 17, 2008
    Publication date: April 23, 2009
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Chang-Yoon OH, Jae-Jeong SHIM, Jung-Je SON, Yeong-Moon SON, Geun-Hwi LIM
  • Publication number: 20090069024
    Abstract: A method for requesting bandwidth allocation by a mobile station in a communication system is provided. The mobile station detects at least one Connection IDentifier (CID), bandwidth allocation for which is to be requested, generates a bandwidth request header when the number of the at least one detected CID equals one, and transmits the bandwidth request header to a base station, wherein the bandwidth request header includes a region for indicating a first CID representing basic information for identification of the mobile station, a region for indicating a ranking of the detected CID, and a region for indicating information about bandwidth requested for the detected CID.
    Type: Application
    Filed: September 2, 2008
    Publication date: March 12, 2009
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Ok-Seon LEE, Geun-Hwi LIM, Jae-Jeong SHIM, Jong-Hyung KWUN, Yeong-Moon SON, Jung-Hoon CHEON
  • Publication number: 20090059857
    Abstract: An apparatus and method are provided for load balancing in a broadband communication system. In an initial network entry/network reentry/handover, whether to allow a user terminal and whether to allow each service flow are checked. The channel state and load state of candidate frequency assignments and subcells are detected. The ranging status of a corresponding frequency assignment or a corresponding subcell is set according to whether to allow the user terminal. The allowable candidate frequency assignment and subcells are selected and transmitted.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 5, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ki-Back Kim, Jae-Jeong Shim, Geun-Hwi Lim, Chang-Yeon Kim, Yoon-Jeong Ha
  • Publication number: 20090043895
    Abstract: A method is provided for allocating resources by a Base Station (BS) in a wireless communication system. The method includes persistently allocating one or more resource slots among a plurality of resource slots, the persistently allocated one or more resource slots being allocated to corresponding one or more Mobile Stations (MSs), de-allocating at least one persistently allocated resource slot of the one or more persistently allocated resource slots, determining whether a hole is created due to the de-allocation among the one or more persistently allocated resource slots not de-allocated, and shifting a location of at least one of the one or more non-de-allocated persistently allocated resource slots when it is determined that the hole is created due to the de-allocation.
    Type: Application
    Filed: October 17, 2008
    Publication date: February 12, 2009
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Chang-Yoon OH, Jae-Jeong SHIM, Jung-Je SON, Yeong-Moon SON, Geun-Hwi LIM
  • Publication number: 20090042567
    Abstract: A method for transmitting Connection Identifier (CID) information by a Base Station (BS) in a communication system is provided. The method includes transmitting a first message including information indicating a Transparent Connection Identifier (TCID) range expressed by a start value and an end value of TCIDs available in the BS, and information indicating a first transparent zone in which the BS is located, assigning one of TCIDs in the TCID range to a Mobile Station(MS) when a second message including a connection setup request from the MS is received and transmitting a third message including the assigned TCID to the MS, wherein the first transparent zone is one of a plurality of transparent zones supportable by the communication system, at least one BS is located in each transparent zone, and TCIDs in the TCID range are shared by the at least one BS included in the first transparent zone.
    Type: Application
    Filed: August 6, 2008
    Publication date: February 12, 2009
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Geun-Hwi LIM, Won-Il ROH, Jae-Jeong SHIM
  • Publication number: 20090017834
    Abstract: An apparatus and a method are disclosed for allocating a connection identifier by a base station in a communication system. The method includes: checking if a mobile station can use a private connection identifier; allocating at least one private connection identifier to the mobile station when the mobile station can use the private connection identifier, wherein the private connection identifier can be allocated to multiple mobile stations controlled by the base station, and at least two private connection identifiers allocated to each mobile station are not different from each other.
    Type: Application
    Filed: June 2, 2008
    Publication date: January 15, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Geun-Hwi Lim, Won-Il Roh, Yong Chang
  • Publication number: 20090011790
    Abstract: A method and apparatus for transmitting/receiving a connection identification (CID) in a communication system is provided. Upon detecting a need for its handover, a mobile station (MS) transmits a handover request message to a first base station (BS) in communication with the MS. Upon receiving the handover request message, the first BS transmits at least one CID for connection setup to a second BS to which the MS will perform handover, to the MS along with a handover response message in response to the handover request message. The MS receives the CID through the handover response message.
    Type: Application
    Filed: July 7, 2008
    Publication date: January 8, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-Jin Lee, Won-Il Roh, Jae-Jeong Shim, Geun-Hwi Lim