Patents by Inventor Sung Duck Chun

Sung Duck Chun 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 for performing handover in wireless communication system
    Patent number: 9603073
    Abstract: Provided is a method for a user equipment performing a handover in a wireless communication system. The method comprises a step of receiving from a source cell a handover command message, which indicates the handover to a target cell, and a step of performing the handover to the target cell, wherein the handover command message includes information on a low-interference wireless resource to be used by the user equipment inside the target cell. The low-interference wireless resource can be a wireless resource which is operated by the source cell in order to mitigate inter-cell interference, when the source cell is an interfering cell and the target cell is an interfered cell.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: March 21, 2017
    Assignee: LG Electronics Inc.
    Inventors: Sung Hoon Jung, Seung June Yi, Young Dae Lee, Sung Duck Chun, Sung Jun Park
  • Method for processing radio protocol in mobile telecommunications system and transmitter of mobile telecommunications
    Patent number: 9585061
    Abstract: An apparatus and method for performing procedures (protocols) of a PDCP (Packet Data Convergence Protocol) layer and an RLC (radio layer in an E-UMTS (Evolved Universal Mobile Telecommunications System) which has evolved from UMTS, among radio protocols of a mobile communication system. The PDCP layer performs ciphering on data (i.e., PDCP SDU) received from an upper layer, generates an indicator discriminating ciphered data and non-ciphered data (i.e., an ROHC feedback packet directly generated by the PDCP layer), and transmits the same to a lower layer (i.e., MAC layer). A PDCP SN (Sequence Number) is defined as an algorithm for ciphering the data in the PDCP layer to perform ciphering in the PDCP layer.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: February 28, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Seung-June Yi, Young-Dae Lee, Sung-Duck Chun, Sung-Jun Park
  • DATA TRANSFER MANAGEMENT IN A RADIO COMMUNICATIONS NETWORK
    Publication number: 20170048759
    Abstract: A mobile communications system including a network with a source network node and a target network node that supports a handover procedure, and a mobile terminal that is allowed to access the source network node and access the target network node according to the handover procedure, in which information related to a reception status of user data is delivered between at least two among a group including the mobile terminal, the source network node, and the target network node such that the target network node may receive status information from the source network node and the target network node may receive a status report from the mobile terminal.
    Type: Application
    Filed: October 25, 2016
    Publication date: February 16, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Sung-Duck CHUN, Young-Dae LEE, Myung-Cheul JUNG, Sung-Jun PARK
  • Method of reporting an aggregated measurement in wireless communication system
    Patent number: 9572061
    Abstract: Disclosed is the radio (wireless) communication system providing a radio communication service and the terminal, and more particularly, to a method of transmitting an aggregated measurement report to a network in an Evolved Universal Mobile Telecommunications System (E-UMTS) evolved from the Universal Mobile Telecommunications System (UMTS) or a Long Term Evolution (LTE) system.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: February 14, 2017
    Assignee: LG Electronics Inc.
    Inventors: Sung-Hoon Jung, Sung-Duck Chun, Seung-June Yi, Young-Dae Lee, Sung-Jun Park
  • Method for transceiving accessible cell information of a relay node in a wireless communication system, and device for same
    Patent number: 9572088
    Abstract: The present invention discloses a method for a serving network node to process a signal in a wireless communication system. In more detail, the method comprises the steps of: forming a communication link with a mobile device; receiving a message including network node list information that the mobile device can access from an external network node or from the mobile device; and transceiving a signal with the mobile device. Here, the mobile device is a relay node, and the external network node is an operation and maintenance (OAM) server or mobility management entity (MME).
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: February 14, 2017
    Assignee: LG Electronics Inc.
    Inventors: Young Dae Lee, Sung Hoon Jung, Seung June Yi, Sung Duck Chun, Sung Jun Park
  • Method of handling time alignment command during a random access procedure
    Patent number: 9565703
    Abstract: Disclosed is the radio (wireless) communication system providing a radio communication service and the terminal, and more particularly, a method of handling time alignment command during a random access procedure in an Evolved Universal Mobile Telecommunications System (E-UMTS) evolved from the Universal Mobile Telecommunications System (UMTS) or a Long Term Evolution (LTE) system is provided.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: February 7, 2017
    Assignee: LG Electronics Inc.
    Inventors: Sung-Duck Chun, Seung-June Yi, Sung-Jun Park
  • Method of receiving a point-to-multipoint service in a wireless communication system
    Patent number: 9565007
    Abstract: The present invention relates to a wireless communication system and user equipment providing wireless communication services, and a method of transmitting and receiving data between a terminal and a base station in an evolved Universal Mobile Telecommunications System (UMTS) that has evolved from a Universal Mobile Telecommunications System (UMTS) or a Long Term Evolution (LTE) system, and more particularly, to a method of receiving a point-to-multipoint service data, and it may be an object of the present invention is to provide an improved method of receiving the point-to-multipoint service data in a wireless communication system in order to minimize a data loss by a reception entity.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: February 7, 2017
    Assignee: LG Electronics Inc.
    Inventors: Sung-Duck Chun, Seung-June Yi, Sung-Jun Park
  • Method of performing polling procedure in a wireless communication system
    Patent number: 9565699
    Abstract: A method of generating a data block for performing a polling procedure in a wireless communication system, a method of transmitting data and a method of performing a polling procedure are disclosed. A protocol layer performs the polling procedure for requesting a receiving side to transmit status report if there are no data to be transmitted to the receiving side in both a transmission buffer and a retransmission buffer. When determining whether there are no data to be transmitted to the receiving side in the retransmission buffer, it is preferable that a data block for which retransmission request information is not received from the receiving side is excluded.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: February 7, 2017
    Assignee: LG ELECTRONICS INC.
    Inventors: Sung Duck Chun, Young Dae Lee, Sung Jun Park, Seung June Yi
  • DATA TRANSMISSION METHOD AND USER EQUIPMENT FOR THE SAME
    Publication number: 20170034854
    Abstract: A mobile communication technology, and, more particularly, a method for efficiently transmitting data stored in a message 3 (Msg3) buffer and a user equipment for the same is disclosed. The method of transmitting data by a user equipment in uplink includes receiving an uplink (UP) Grant signal from a base station on a specific message, determining whether there is data stored in a message 3 (Msg3) buffer when receiving the UL Grant signal on the specific message, determining whether the specific message is a random access response message, and transmitting the data stored in the Msg3 buffer to the base station using the UL Grant signal received on the specific message, if there is data stored in the Msg3 buffer when receiving the UL Grant signal on the specific message and the specific message is the random access response message.
    Type: Application
    Filed: October 14, 2016
    Publication date: February 2, 2017
    Inventors: Sung Jun PARK, Seung June YI, Young Dae LEE, Sung Duck CHUN
  • Method of providing a service on a downlink shared channel
    Patent number: 9554357
    Abstract: A method of receiving a service from a network in a mobile communication system in accordance with the present invention comprises receiving static scheduling information from a network, the static scheduling information including information on radio resources associated with combining reception, receiving dynamic scheduling information from the network, the dynamic scheduling information including control information for receiving the service, and receiving the service by combining downlink shared channels transmitted from a plurality of cells based on the static scheduling information and the dynamic scheduling information.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: January 24, 2017
    Assignee: LG Electronics Inc.
    Inventors: Young Dae Lee, Sung Duck Chun, Myung Cheul Jung, Sung Jun Park
  • METHOD FOR TRANSMITTING STATUS REPORT OF PDCP LAYER IN MOBILE TELECOMMUNICATIONS SYSTEM AND RECEIVER OF MOBILE TELECOMMUNICATIONS
    Publication number: 20170019807
    Abstract: A status report transmission of the PDCP layer for a PDCP status report can reduce radio resources by transmitting the reception success or failure of a series of PDCP SDUs in the form of a bitmap when configuring the PDCP status report for reporting a reception status of the PDCP SDU to another party in the PDCP layer in the LTE system.
    Type: Application
    Filed: September 27, 2016
    Publication date: January 19, 2017
    Inventors: Seung-June YI, Sung-Jun PARK, Young-Dae LEE, Sung-Duck CHUN
  • METHOD OF TRANSMITTING AND RECEIVING CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20170013601
    Abstract: A method of transmitting and receiving control information in a wireless communication system is disclosed, The method of receiving control information related to a specific point-to-multipoint service in a user equipment of a wireless communication system comprises receiving a notification message including indication information and an identifier identifying the point-to-multipoint service from a network, the indication information indicating at least one downlink channel related to the specific point-to-multipoint service among a plurality of downlink channels established for transmission of control information for at least one or more point-to-multipoint service, and receiving at least one downlink channel indicated by the indication information.
    Type: Application
    Filed: September 23, 2016
    Publication date: January 12, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Seung June YI, Young Dae LEE, Sung Duck CHUN, Sung Jun PARK
  • METHOD FOR PERFORMING RANDOM ACCESS PROCEDURE IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20170006642
    Abstract: There is provided with a method for enabling a user equipment to perform a random access procedure in a wireless communication system. The method includes transmitting a random access preamble and receiving a random access response as a response to the random access preamble. The random access response is addressed by a random access identifier. The random access identifier is mapped to radio resources used for transmitting the random access preamble. The user equipment can immediately confirm its random access response and perform further efficient random access procedure.
    Type: Application
    Filed: September 16, 2016
    Publication date: January 5, 2017
    Inventors: Sung Jun Park, Young Dae Lee, Seung June Yi, Sung Duck Chun
  • Method of performing uplink synchronization in wireless communication system
    Patent number: 9538490
    Abstract: A method of performing uplink synchronization in a wireless communication system includes transmitting a random access preamble which is randomly selected from a set of random access preambles, receiving a random access response, the random access response comprising a random access preamble identifier corresponding to the random access preamble and a time alignment value for uplink synchronization, starting a time alignment timer after applying the time alignment value, starting a contention resolution timer after receiving the random access response, wherein contention resolution is not successful when the contention resolution timer is expired, and stopping the time alignment timer when the contention resolution timer is expired.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: January 3, 2017
    Assignee: LG Electronics Inc.
    Inventors: Sung Jun Park, Young Dae Lee, Seung June Yi, Sung Duck Chun
  • Data transmission method and user equipment for the same
    Patent number: 9532336
    Abstract: A mobile communication technology, and, more particularly, a method for efficiently transmitting data stored in a message 3 (Msg3) buffer and a user equipment for the same is disclosed. The method of transmitting data by a user equipment in uplink includes receiving an uplink (UP) Grant signal from a base station on a specific message, determining whether there is data stored in a message 3 (Msg3) buffer when receiving the UL Grant signal on the specific message, determining whether the specific message is a random access response message, and transmitting the data stored in the Msg3 buffer to the base station using the UL Grant signal received on the specific message, if there is data stored in the Msg3 buffer when receiving the UL Grant signal on the specific message and the specific message is the random access response message.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: December 27, 2016
    Assignee: EVOLVED WIRELESS LLC
    Inventors: Sung Jun Park, Seung June Yi, Young Dae Lee, Sung Duck Chun
  • Method for performing random access in wireless communication system and device supporting same
    Patent number: 9532383
    Abstract: Provided is a method for performing random access of a terminal in a wireless communication system. The method receives information about at least one first sub-frame from a base station, selects at least one second sub-frame from at least one first sub-frame, and transmits a random access preamble in a randomly selected sub-frame from at least one second sub-frame if the terminal is a specific type. If the terminal is not a specific type, the random access preamble is transmitted from the randomly selected sub-frame from at least one first sub-frame.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: December 27, 2016
    Assignee: LG Electronics Inc.
    Inventors: Young Dae Lee, Sung Hoon Jung, Seung June Yi, Sung Duck Chun, Sung Jun Park
  • Method and apparatus for reporting a logged measurement in a wireless communication system
    Patent number: 9526014
    Abstract: The present invention relates to a method and apparatus for performing a logged measurement in a wireless communication system. A terminal receives a measurement configuration and a terminal selection parameter from a base station. The terminal determines whether or not to apply the measurement configuration based on the terminal selection parameter. If the measurement configuration is determined to be applied, the terminal logs a measurement based on the measurement configuration.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: December 20, 2016
    Assignee: LG Electronics Inc.
    Inventors: Sung Hoon Jung, Seung June Yi, Young Dae Lee, Sung Duck Chun, Sung Jun Park
  • METHOD FOR CONTROLLING RADIO RESOURCE ALLOCATION IN MOBILE COMMUNICATION SYSTEM
    Publication number: 20160366668
    Abstract: In a wireless mobile communications system, a method for controlling a radio resource allocation is provided. A network transmits access control information to a terminal such that a request for the radio resource allocation which will be transmitted from the terminal can be controlled. The terminal selectively transmits the request for the radio resource allocation based on the received information, thus a transmission of an unnecessary request for the radio resource can be minimized, thereby preventing a waste of the radio resource.
    Type: Application
    Filed: August 24, 2016
    Publication date: December 15, 2016
    Inventors: Sung-Duck CHUN, Young-Dae LEE, Sung-Jun PARK, Seung-June YI
  • METHOD FOR TRANSMITTING RESPONSE INFORMATION IN MOBILE COMMUNICATIONS SYSTEM
    Publication number: 20160366706
    Abstract: A method for transmitting radio resources in a mobile communication system is disclosed. The method includes receiving a random access channel (RACH) preamble from a plurality of UEs and transmitting response information associated with the received preambles over a common channel wherein the plurality UEs can access the common channel and receive corresponding information. If a HARQ scheme is used when a UE transmits data to the eNode-B using uplink radio resources allocated over the RACH, the eNode-B does not pre-allocate uplink radio resources required for re-transmission and performs allocation of radio resources for a first transmission of HARQ. If the re-transmission is required, the eNode-B allocates the radio resources required for the re-transmission with the NACK signal. If re-transmission is not required, the present invention can reduce an amount of wasted radio resources.
    Type: Application
    Filed: August 24, 2016
    Publication date: December 15, 2016
    Applicant: LG ELECTRONICS INC.
    Inventors: Young Dae LEE, Sung Duck CHUN, Myung Cheul JUNG, Sung Jun PARK
  • Data transfer management in a radio communications network
    Patent number: 9516573
    Abstract: A mobile communications system including a network with a source network node and a target network node that supports a handover procedure, and a mobile terminal that is allowed to access the source network node and access the target network node according to the handover procedure, in which information related to a reception status of user data is delivered between at least two among a group including the mobile terminal, the source network node, and the target network node such that the target network node may receive status information from the source network node and the target network node may receive a status report from the mobile terminal.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: December 6, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Sung-Duck Chun, Young-Dae Lee, Myung-Cheul Jung, Sung-Jun Park