Patents by Inventor Kwang Ryul Jung

Kwang Ryul Jung 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: 20190239263
    Abstract: Disclosed are user equipment and a base station in a carrier aggregation system, and a call admission method thereof. The user equipment includes a plurality of physical layers, and the base station provides multiple component carriers. When messages for connection setup are transmitted and received between the user equipment and base station, the messages include information about what component carriers are selected by the physical layers, information about what component carriers are selectable by the physical layers, and information about calculations for uplink timing alignment, and call admission control and load balancing is performed based on the information included in the messages. Accordingly, in the carrier aggregation system, quicker call admission and load balancing are achieved.
    Type: Application
    Filed: April 14, 2019
    Publication date: August 1, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kwang-Ryul JUNG, Soon-Yong LIM, Ae-Soon PARK
  • Publication number: 20170201994
    Abstract: Provided is a subframe structure of a wireless communication system, including a plurality of short frames defined as n (n<12, n is a natural number) OFDM symbol periods, wherein a transmission time interval (TTI) is determined based on the plurality of short frames.
    Type: Application
    Filed: January 5, 2017
    Publication date: July 13, 2017
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Soon Yong LIM, Kwang Ryul JUNG
  • Patent number: 9355408
    Abstract: Disclosed is an advertising service method using D2D communication for efficiently using limited radio resources and control channel resources. The advertising service method includes setting a D2D common bearer with a network, receiving advertising terminal information from at least one other advertising terminal through the D2D common bearer, registering the advertising terminal in the network, transmitting advertising information to the at least one other advertising terminal and a user terminal through the D2D common bearer, and setting a user terminal and a D2D dedicated bearer on the basis of information received from the network. Accordingly, an advertisement can be easily transmitted to a plurality of user terminals which were not previously connected, and a collision between advertising terminals which are located in plurality in a specific area and transmit advertisements can be avoided.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: May 31, 2016
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang Ryul Jung, Hyeong Jun Park, Nam Hoon Park
  • Patent number: 9357573
    Abstract: A method of providing service continuity between cellular communication and device-to-device communication is disclosed. A procedure for switching between cellular communication and device-to-device communication according to an example embodiment of the present invention may include transferring, by a gateway, a D2D bearer creation request message to an MME, transferring, by the MME, the D2D bearer creation request message to a base station, mapping, by the base station, D2D bearer QoS to D2D radio bearer QoS and transmitting an RRC connection reconfiguration message to terminals, receiving, by the base station, an RRC connection reconfiguration completion message indicating creation of a D2D radio bearer from the terminals, transmitting, by the base station, a D2D bearer creation response message indicating creation of a D2D bearer to the MME, and transferring, by the MME, the D2D bearer creation response message to the gateway.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: May 31, 2016
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: You Sun Hwang, Kwang Ryul Jung, Mi Jeong Yang, Hyung Deug Bae, Soon Yong Lim, Moon Soo Jang, Hyeong Jun Park, Nam Hoon Park
  • Publication number: 20150119048
    Abstract: A method and apparatus for perceiving access between a terminal and a small base station is provided. A macro base station transmits a small cell addition/change request message to a small base station that a terminal enters and transmits a message for access to the terminal when receiving a response message from the small base station. Then the macro base station obtains results of access between the terminal and the small base station and determines whether the access between the terminal and the small base station is completed based on the result of access.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 30, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Mi Jeong YANG, Soon Yong LIM, Kwang Ryul JUNG, Jae Wook SHIN
  • Patent number: 8903433
    Abstract: Provided is a paging method and apparatus considering a carrier aggregation (CA) environment in a mobile communication system. A paging method of a user equipment may include: selecting a component carrier (CC) set of the user equipment by selecting a CC for each component carrier element (CCE); receiving, from an evolved Node-B (eNB), a paging message containing a CC set; setting up a connection with the eNB through the CC set of the user equipment when the received CC set is the same as the CC set of the user equipment, or when all the CCs are included in the received CC set; and changing the CC set of the user equipment to the received CC set and setting up the connection with the eNB through the changed CC set when the received CC set is different from the CC set of the user equipment.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: December 2, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang Ryul Jung, Aesoon Park
  • Publication number: 20140304081
    Abstract: Disclosed is an advertising service method using D2D communication for efficiently using limited radio resources and control channel resources. The advertising service method includes setting a D2D common bearer with a network, receiving advertising terminal information from at least one other advertising terminal through the D2D common bearer, registering the advertising terminal in the network, transmitting advertising information to the at least one other advertising terminal and a user terminal through the D2D common bearer, and setting a user terminal and a D2D dedicated bearer on the basis of information received from the network. Accordingly, an advertisement can be easily transmitted to a plurality of user terminals which were not previously connected, and a collision between advertising terminals which are located in plurality in a specific area and transmit advertisements can be avoided.
    Type: Application
    Filed: November 12, 2013
    Publication date: October 9, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kwang Ryul JUNG, Hyeong Jun PARK, Nam Hoon PARK
  • Patent number: 8837400
    Abstract: Disclosed is a method of transmitting and receiving a small amount of uplink data. A method of transmitting uplink data includes detecting uplink data to be transmitted, determining whether or not uplink data transmission is necessary only once, transmitting a service request message including information instructing that a data radio bearer not be generated when it is determined that uplink data transmission is necessary only once, starting a radio resource control (RRC) connection setup process, and performing the uplink data transmission once using a signaling radio bearer without generating the data radio bearer with reference to the information instructing that the data radio bearer not be generated, during the RRC connection setup process, when it is determined that \ uplink data transmission is necessary only once.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: September 16, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kyung Yul Cheon, You Sun Hwang, Kwang Ryul Jung, Ae Soon Park
  • Publication number: 20140194115
    Abstract: A method for discovery in device-to-device communications and an apparatus for the same are disclosed. The method performed in a device-to-device server supporting device-to-device discovery between a discovery terminal and a discoverable terminal may include receiving a device-to-device discovery participation message from the discoverable terminal, requesting a gateway to measure a proximity between the discovery terminal and the discoverable terminal, receiving a proximity measurement result from the gateway, and requesting the discovery terminal and the discoverable terminal to initiate a procedure of device-to-device discovery when the proximity measurement result satisfies a predetermined threshold. Thus, the procedure of device-to-device discovery may be performed efficiently.
    Type: Application
    Filed: January 7, 2014
    Publication date: July 10, 2014
    Applicant: Electronics & Telecommunications Research Institute
    Inventors: Mi Jeong YANG, Soon Yong LIM, Kwang Ryul JUNG, Hyung Deug BAE, You Sun HWANG, Moon Soo JANG, Hyeong Jun PARK, Nam Hoon PARK
  • Publication number: 20140162633
    Abstract: A method of providing service continuity between cellular communication and device-to-device communication is disclosed. A procedure for switching between cellular communication and device-to-device communication according to an example embodiment of the present invention may include transferring, by a gateway, a D2D bearer creation request message to an MME, transferring, by the MME, the D2D bearer creation request message to a base station, mapping, by the base station, D2D bearer QoS to D2D radio bearer QoS and transmitting an RRC connection reconfiguration message to terminals, receiving, by the base station, an RRC connection reconfiguration completion message indicating creation of a D2D radio bearer from the terminals, transmitting, by the base station, a D2D bearer creation response message indicating creation of a D2D bearer to the MME, and transferring, by the MME, the D2D bearer creation response message to the gateway.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 12, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: You Sun HWANG, Kwang Ryul JUNG, Mi Jeong YANG, Hyung Deug BAE, Soon Yong LIM, Moon Soo JANG, Hyeong Jun PARK, Nam Hoon PARK
  • Publication number: 20140044068
    Abstract: Disclosed are user equipment and a base station in a carrier aggregation system, and a call admission method thereof. The user equipment includes a plurality of physical layers, and the base station provides multiple component carriers. When messages for connection setup are transmitted and received between the user equipment and base station, the messages include information about what component carriers are selected by the physical layers, information about what component carriers are selectable by the physical layers, and information about calculations for uplink timing alignment, and call admission control and load balancing is performed based on the information included in the messages. Accordingly, in the carrier aggregation system, quicker call admission and load balancing are achieved.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 13, 2014
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kwang-Ryul JUNG, Soon-Yong LIM, Ae-Soon PARK
  • Patent number: 8599686
    Abstract: User equipment and a base station in a carrier aggregation system, and a call admission method thereof are discussed. The user equipment includes multiple physical layers, and the base station provides multiple component carriers. When messages for connection setup are transmitted and received between the user equipment and base station, the messages may include information about what component carriers are selected for the physical layers, information about what component carriers are selectable for the physical layers, information about calculations for uplink timing alignment. Call admission control and load balancing may be performed based on the information included in the messages. Accordingly, a carrier aggregation system providing call admission and load balancing is achieved.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: December 3, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang-Ryul Jung, Soon-Yong Lim, Ae-Soon Park
  • Publication number: 20130258996
    Abstract: A resource allocation method of a base station for a device-to-device (D2D) communication link based on a cellular communication system includes providing operation information which includes information about one or more resource allocation patterns available for the D2D communication link to terminals which perform D2D communication according to each terminal and each D2D communication link, receiving a buffer status report (BSR) from the terminals which perform the D2D communication, and transmitting an indication value which indicates at least one of the resource allocation patterns based on the BSR. Accordingly, in the resource allocation method, low capacity of downlink control channels is required by the base station, yet flexible and efficient allocation of resources is enabled.
    Type: Application
    Filed: July 19, 2012
    Publication date: October 3, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kwang Ryul JUNG, Mi Jeong YANG, Ae Soon PARK
  • Publication number: 20130150108
    Abstract: Provided is a device-to-device (D2D) communication method based on a cellular communication system. The D2D communication method is based on a hierarchical D2D communication structure configured with a representative terminal and belonging terminals. Accordingly, the D2D communication method can be applied to various applications and business models. Also, a belonging terminal performs data communication only with an adjacent representative terminal due to a middle gathered structure through the representative terminal, so that the D2D communication method can be applied to an application requiring low power consumption. Further, the D2D communication method can be used as a solution for a Proxy machine-to-machine (M2M) device due to powerful security of mobile communication compared to that of a sensor network, reliability of data transmission, and speed of data transmission resulting from low latency.
    Type: Application
    Filed: July 11, 2012
    Publication date: June 13, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Mi Jeong YANG, Kwang Ryul JUNG, Ae Soon PARK
  • Patent number: 8437358
    Abstract: A method for controlling uplink IP packet filtering in a mobile terminal in a 3GPP Evolved Packet System (EPS) is provided, including an information receiving operation of receiving IP address information allocated to user equipment, and filtering information required for delivering an uplink IP packet received from the user equipment; and a filtering operation for determining which packet data network and a bearer the IP packet is delivered to, based on the IP address information and the filtering information. In a 3GPP evolved packet system supporting a default bearer function, a packet data network to which an uplink IP packet is delivered and a bearer identifier can be efficiently determined when the user equipment simultaneously accesses one or more packet data networks and is allocated several IP addresses, resulting in effective uplink packet filtering.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: May 7, 2013
    Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research Inst.
    Inventors: Jae Wook Shin, Kwang-Ryul Jung, Ae-Soon Park
  • Publication number: 20120163313
    Abstract: Disclosed is a call processing method for use in a machine-type communication terminal. The call processing method includes transmitting, by a terminal, a radio resource control (RRC) connection request message to a base station, receiving, by the terminal, an RRC connection setup message from the base station, receiving, by the terminal, an uplink (UL) resource allocation grant message from the base station in a state in which a service request message and a buffer status report message are not transmitted to the base station, and transmitting, by the terminal, a message for call processing corresponding to the UL resource allocation grant message. It is possible to rapidly and efficiently perform a call processing procedure and lengthen the life span of the terminal by reducing power consumption of the terminal that uses battery as an energy source.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kwang Ryul JUNG, Jae Wook SHIN, Kyung Yul CHEON, Ae Soon PARK
  • Publication number: 20120163296
    Abstract: Disclosed is a method of transmitting and receiving a small amount of uplink data. A method of transmitting uplink data includes detecting uplink data to be transmitted, determining whether or not uplink data transmission is necessary only once, transmitting a service request message including information instructing that a data radio bearer not be generated when it is determined that uplink data transmission is necessary only once, starting a radio resource control (RRC) connection setup process, and performing the uplink data transmission once using a signaling radio bearer without generating the data radio bearer with reference to the information instructing that the data radio bearer not be generated, during the RRC connection setup process, when it is determined that \ uplink data transmission is necessary only once.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 28, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kyung Yul CHEON, You Sun HWANG, Kwang Ryul JUNG, Ae Soon PARK
  • Publication number: 20120155438
    Abstract: A method includes recognizing, by an RLC entity of a reception side, a transmission time interval (TTI) start time, initializing a count of the number of PDUs processed in a TTI, determining whether the reordering timer has expired, performing a procedure of reassembling RLC service data units (SDUs) and transmitting the reassembled RLC SDUs to an upper layer and updating the reordering timer when the reordering timer has expired, performing the procedure and updating the reordering timer when an RLC PDU received from a lower layer is an RLC PDU which should be received by retransmission of a transmission side before reordering timer expiration, and processing RLC SDUs received from the upper layer, wherein the procedure limits the number of RLC PDUs to be processed within a TTI using the count of the number of PDUs to be processed within the TTI.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 21, 2012
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jae Wook SHIN, Kwang Ryul JUNG, Ae Soon PARK
  • Patent number: 8185108
    Abstract: The present invention relates to a multi-mode communication system and a method thereof. The multi-mode communication system uses a first mode among a plurality communication modes for accessing a first mobility control entity (MCE) among a plurality of MCEs, and communicates data with the first MCE. The multi-mode communication system receives a paging request that has been transmitted from a multi-mode control entity (MMCE) for accessing a second MCE from the first MCE and analyzes the paging request, and puts the first mode into a sleep mode and a second mode for accessing the second MCE into an awake mode based on the analysis. Subsequently, multi-mode UE accesses the second MCE by using the second mode in the awake mode. According to the present invention, an MMCE for multi-mode control is provided to integrate and manage an idle state for each access mode of multi-mode user equipment, thereby minimizing power consumption due to access of the multi-mode UE to a radio access system.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: May 22, 2012
    Assignees: Electronics and Telecommunications Research Institute, SK Telecom Co., Ltd., KTFreetel Co., Ltd.
    Inventors: Kwang-Ryul Jung, Hye-Yeon Kwon, Ae-Soon Park
  • Patent number: 8155086
    Abstract: The present invention relates to a handover method between systems of a multi-mode terminal. A multi-cast based protocol is added to an Internet protocol (IP) based wireless network to cooperate with the wireless access protocol of the terminal. In addition, minimized processes are added to use the wireless access protocol having wide area coverage. Accordingly, the handover between the systems may be performed while packet loss or service delay caused by a movement of a user may be minimized, and terminal complexity may not be increased.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: April 10, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Kwang-Ryul Jung, Ae-Soon Park