Patents by Inventor Mi Jeong Yang

Mi Jeong Yang 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: 20200252914
    Abstract: A method and an apparatus for uplink communication based on grant-free scheme in a communication system. An operation method of a terminal includes receiving an RRC message from a base station, the RRC message including information indicating a frequency resource of a PUSCH; receiving a DCI from the base station, the DCI including information indicating a time resource of the PUSCH; and transmitting the PUSCH to the base station using the time-frequency resource indicated by the RRC message and the DCI. Therefore, the performance of the communication system can be improved.
    Type: Application
    Filed: December 26, 2019
    Publication date: August 6, 2020
    Inventors: Mi Jeong YANG, Sung Min OH, Soon Yong LIM
  • Publication number: 20190037628
    Abstract: There are provided a method for processing an exceptional case of establishing a default bearer and a device therefor in order to solve a problem in that a user equipment cannot actually receive an IP service by accessing a packet network while failing in establishing the default bearer in a mobile communication system. A method for processing an exceptional case of establishing a default bearer in a mobility management entity includes: receiving a network attachment request from a user equipment; transmitting a network attachment acceptance including an activation request of the default bearer to the user equipment in response to the network attachment request; and cancelling a network attachment procedure when a completion response to the activation request of the default bearer is not received from the user equipment within a predetermined time.
    Type: Application
    Filed: October 4, 2018
    Publication date: January 31, 2019
    Inventors: Mi Jeong YANG, Jae Wook SHIN, Ae-Soon PARK
  • Patent number: 10064229
    Abstract: There are provided a device-to-device communication method, a mobile device using the same, and a device-to-device communication control method. The device-to-device communication method according to the invention may include receiving device-to-device communication resource allocation information and transmission characteristics information for device-to-device communication from a base station, and performing direct communication with an opposite terminal using the transmission characteristics information for device-to-device communication and the device-to-device communication resource allocation information, in which the transmission characteristics information includes the number of redundancy versions to be transmitted within at least one consecutive transmission time interval (TTI).
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: August 28, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Mi Jeong Yang, Soon Yong Lim, Hyeong Jun Park, Nam Hoon Park
  • Publication number: 20180192342
    Abstract: A transmission method of a mobile station moved in a region of a cell provided by a base station and providing a wireless LAN (local area network). The mobile station receives a plurality of uplink packet flows from a terminal. The mobile station distributes the plurality of uplink packet flows to a plurality of carrier components. Further, the mobile station transmits the plurality of uplink packet flows to the base station through the plurality of carrier components.
    Type: Application
    Filed: July 11, 2017
    Publication date: July 5, 2018
    Inventors: Soon Yong LIM, Myungsan BAE, Mi Jeong YANG
  • Publication number: 20170142774
    Abstract: There are provided a method for processing an exceptional case of establishing a default bearer and a device therefor in order to solve a problem in that a user equipment cannot actually receive an IP service by accessing a packet network while failing in establishing the default bearer in a mobile communication system. A method for processing an exceptional ease of establishing a default hearer in a mobility management entity includes: receiving a network attachment request from a user equipment; transmitting a network attachment acceptance including an activation request of the default bearer to the user equipment in response to the network attachment request; and cancelling a network attachment procedure when a completion response to the activation request of the default bearer is not received from the user equipment within a predetermined time.
    Type: Application
    Filed: January 27, 2017
    Publication date: May 18, 2017
    Inventors: Mi Jeong YANG, Jae Wook SHIN, Ae-Soon PARK
  • Patent number: 9565710
    Abstract: There are provided a method for processing an exceptional case of establishing a default bearer and a device therefor in order to solve a problem in that a user equipment cannot actually receive an IP service by accessing a packet network while failing in establishing the default bearer in a mobile communication system. A method for processing an exceptional case of establishing a default bearer in a mobility management entity includes: receiving a network attachment request from a user equipment; transmitting a network attachment acceptance including an activation request of the default bearer to the user equipment in response to the network attachment request; and cancelling a network attachment procedure when a completion response to the activation request of the default bearer is not received from the user equipment within a predetermined time.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: February 7, 2017
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Mi Jeong Yang, Jae Wook Shin, Ae-Soon Park
  • Patent number: 9414427
    Abstract: Provided is a link adaptation transmission and reception method in device-to-device (D2D) communication based on cellular mobile communication. An operation method of a terminal in the link adaptation method according to the present invention includes receiving information related to a first transmission through a D2D link, performing transmission for an opposite terminal using the information related to the first transmission, and determining information related to a second transmission after the transmission based on reception from the opposite terminal. Using the link adaptation method according to the present invention, an adaptive modulation and coding scheme may be provided at the time of data transmission on a D2D link while minimizing control of a base station, thereby reducing the complexity of a cellular network due to the D2D communication.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: August 9, 2016
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Mi Jeong Yang, Soon Yong Lim, 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: 20160088673
    Abstract: There are provided a method for processing an exceptional case of establishing a default bearer and a device therefor in order to solve a problem in that a user equipment cannot actually receive an IP service by accessing a packet network while failing in establishing the default bearer in a mobile communication system. A method for processing an exceptional case of establishing a default bearer in a mobility management entity includes: receiving a network attachment request from a user equipment; transmitting a network attachment acceptance including an activation request of the default bearer to the user equipment in response to the network attachment request; and cancelling a network attachment procedure when a completion response to the activation request of the default bearer is not received from the user equipment within a predetermined time.
    Type: Application
    Filed: December 4, 2015
    Publication date: March 24, 2016
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Mi Jeong YANG, Jae Wook SHIN, Ae-Soon PARK
  • Patent number: 9237594
    Abstract: There are provided a method for processing an exceptional case of establishing a default bearer and a device therefor in order to solve a problem in that a user equipment cannot actually receive an IP service by accessing a packet network while failing in establishing the default bearer in a mobile communication system. A method for processing an exceptional case of establishing a default bearer in a mobility management entity includes: receiving a network attachment request from a user equipment; transmitting a network attachment acceptance including an activation request of the default bearer to the user equipment in response to the network attachment request; and cancelling a network attachment procedure when a completion response to the activation request of the default bearer is not received from the user equipment within a predetermined time.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: January 12, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Mi Jeong Yang, Jae Wook Shin, Ae-Soon Park
  • Patent number: 9232454
    Abstract: A method of offloading data is provided by a UE. The UE receives data from a macro cell base station over an MC-RB while an E-RAB between the macro cell base station and a gateway is established. The UE receives a first connection reconfiguration message from the macro cell base station after the E-RAB between a small cell base station and the gateway is established, and establishes an SC-RB according to the first connection reconfiguration message. Next, the UE receives a second connection reconfiguration message from the macro cell base station after a path between the macro cell base station and the gateway is switched to a path between the small cell base station and the gateway, and data for the MC-RB are exhausted on the macro cell base station. Then, the UE releases the MC-RB and switches to the SC-RB.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: January 5, 2016
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Soon Yong Lim, Mi Jeong Yang
  • Patent number: 9137689
    Abstract: Provided is a machine type communication system including a machine type communication device operating with a battery. The machine type communication system may monitor a residual power of the battery supplying power to the machine type communication device, and may output the monitored residual power to a device of a manager that manages the machine type communication device. Also, a point in time when the residual power of the battery is to be monitored may be determined based on the residual power.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: September 15, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyeyeon Kwon, Kyung Yul Cheon, Mi Jeong Yang, Aesoon Park
  • Publication number: 20150215848
    Abstract: A discovery method is provided by a terminal in a terminal-to-terminal direct communication terminal-to-terminal direct communication. The terminal broadcasts a sequence, and receives an echo sequence on the sequence from other terminal. The terminal scrambles discovery information with the sequence, and transmits the scrambled discovery information.
    Type: Application
    Filed: January 15, 2015
    Publication date: July 30, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Mi Jeong YANG, Soon Yong LIM, Jae Wook SHIN, Pyeong Jung SONG
  • Publication number: 20150148046
    Abstract: A method of offloading data is provided by a UE. The UE receives data from a macro cell base station over an MC-RB while an E-RAB between the macro cell base station and a gateway is established. The UE receives a first connection reconfiguration message from the macro cell base station after the E-RAB between a small cell base station and the gateway is established, and establishes an SC-RB according to the first connection reconfiguration message. Next, the UE receives a second connection reconfiguration message from the macro cell base station after a path between the macro cell base station and the gateway is switched to a path between the small cell base station and the gateway, and data for the MC-RB are exhausted on the macro cell base station. Then, the UE releases the MC-RB and switches to the SC-RB.
    Type: Application
    Filed: September 12, 2014
    Publication date: May 28, 2015
    Inventors: Soon Yong LIM, Mi Jeong YANG
  • 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
  • Publication number: 20150017926
    Abstract: Provided is a machine type communication system including a machine type communication device operating with a battery. The machine type communication system may monitor a residual power of the battery supplying power to the machine type communication device, and may output the monitored residual power to a device of a manager that manages the machine type communication device. Also, a point in time when the residual power of the battery is to be monitored may be determined based on the residual power.
    Type: Application
    Filed: September 17, 2014
    Publication date: January 15, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Hyeyeon KWON, Kyung Yul CHEON, Mi Jeong YANG, Aesoon PARK
  • Patent number: 8868001
    Abstract: Provided is a machine type communication system including a machine type communication device operating with a battery. The machine type communication system may monitor a residual power of the battery supplying power to the machine type communication device, and may output the monitored residual power to a device of a manager that manages the machine type communication device. Also, a point in time when the residual power of the battery is to be monitored may be determined based on the residual power.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: October 21, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Hyeyeon Kwon, Kyung Yul Cheon, Mi Jeong Yang, Aesoon 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: 20140119306
    Abstract: There are provided a device-to-device communication method, a mobile device using the same, and a device-to-device communication control method. The device-to-device communication method according to the invention may include receiving device-to-device communication resource allocation information and transmission characteristics information for device-to-device communication from a base station, and performing direct communication with an opposite terminal using the transmission characteristics information for device-to-device communication and the device-to-device communication resource allocation information, in which the transmission characteristics information includes the number of redundancy versions to be transmitted within at least one consecutive transmission time interval (TTI).
    Type: Application
    Filed: October 31, 2013
    Publication date: May 1, 2014
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Mi Jeong YANG, SOON YONG LIM, HYEONG JUN PARK, NAM HOON PARK