Patents by Inventor Sun-Heui Ryoo

Sun-Heui Ryoo 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: 11050727
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for communicating by a user equipment with a macro cell base station and a small cell base station in a communication system is provided. The method comprises applying a first base station security key to a first communication link with the macro cell base station; generating a second base station security key to be used for a second communication link with the small cell base station based on the first base station security key; applying the second base station security key to the second communication link with the small cell base station; and communicating through at least one of the first communication link and the second communication link.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: June 29, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Heui Ryoo, Soeng-Hun Kim, Jung-Soo Jung, Jung-Min Moon, Anshuman Nigam, Sung-Jin Lee
  • Patent number: 11006390
    Abstract: The present invention relates to a 5th generation (5G) or pre-5G communication system to be provided for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE). According to the present invention, a method by which a transmission device transmits a signal is a wireless communication system supporting an unlicensed band comprises the steps of: detecting the need for controlling a clear channel assessment (CCA) threshold during the performance of a CCA process; and controlling the CCA threshold used in the CCA process.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: May 11, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Min Moon, Sun-Heui Ryoo, Seung-Hoon Park, Jung-Soo Jung
  • Patent number: 11006459
    Abstract: The present disclosure relates to a 5G or pre-5G communication system that will be provided to support higher data transfer rate following a 4G communication system such as LTE. The present disclosure relates to a method of performing random access of a terminal, said method comprising: an operation of determining the number of received beams of a base station connected to transmitted beams of the terminal; an operation of determining an area of wireless transfer resource on the basis of the number of the received beams; and an operation of transmitting random access message in the random access resource defined by the beam resource corresponding to the determined number and the wireless transfer resource corresponding to the determined area.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: May 11, 2021
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Sun-Heui Ryoo, Sung-Jin Park, Nam-I Kim, Dong-Ho Cho
  • Patent number: 10999872
    Abstract: The present disclosure relates to a 5G or pre-5G communication system that will be provided to support higher data transfer rate following a 4G communication system such as LTE. The present disclosure relates to a method of performing random access of a terminal, said method comprising: an operation of determining the number of received beams of a base station connected to transmitted beams of the terminal; an operation of determining an area of wireless transfer resource on the basis of the number of the received beams; and an operation of transmitting random access message in the random access resource defined by the beam resource corresponding to the determined number and the wireless transfer resource corresponding to the determined area.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: May 4, 2021
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Sun-Heui Ryoo, Sung-Jin Park, Nam-I Kim, Dong-Ho Cho
  • Patent number: 10945102
    Abstract: The present disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as a long term evolution (LTE). A method for transmitting data in a base station (BS) in a communication system is provided. The method includes transmitting data to a plurality of stations (STAs) included in a group on a first sub-frame based on a schedule preset based on a time division duplexing (TDD) scheme; and receiving acknowledgement (ACK) signals from each of the plurality of STAs on a second sub-frame after a first interval from the first sub-frame.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: March 9, 2021
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Sun-Heui Ryoo, Dongseok Roh, Minhoe Kim, Dong-Ho Cho, Nam-I Kim
  • Publication number: 20210058872
    Abstract: A method and an apparatus for controlling uplink power in a wireless communication system are provided. The method for controlling uplink power of a User Equipment (UE) forming a transmission link with a plurality of BSs (BSs), a power headroom report trigger event by at least one of the plurality of BSs is detected. Power headroom information of the UE is reported to at least one of the plurality of BSs.
    Type: Application
    Filed: November 9, 2020
    Publication date: February 25, 2021
    Inventors: Sun-Heui RYOO, Jung-Soo JUNG, Hyun-Jeong KANG, Jong-Hyung KWUN, Sung-Jin LEE
  • Patent number: 10924967
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method of setting a handover parameter includes receiving, from a serving evolved NodeB (eNB), cell type information indicating eNB types of the serving eNB and eNBs adjacent to the serving eNB, and mobility information of the UE, detecting types of the serving eNB and a target eNB based on the cell type information, and setting a Time-To-Trigger (TTT) applied, the mobility information of the UE, and a received signal strength for the serving eNB.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: February 16, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Soo Jung, Jung-Min Moon, Jong-Hyung Kwun, Sun-Heui Ryoo, Sung-Jin Lee
  • Patent number: 10887812
    Abstract: Methods and apparatuses are provided in a wireless communication system supporting dual connectivity of a first base station and a second base station. A predetermined number of consecutive out-of-syncs for a special cell are received. A timer for the special cell is started. A radio link failure (RLF) is detected upon an expiration of the timer. A failure message including failure type is transmitted to the first base station in case that the RLF for the special cell is associated with the second base station.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: January 5, 2021
    Inventors: Anshuman Nigam, Jung Min Moon, Jung Soo Jung, Sun Heui Ryoo, Sung Jin Lee
  • Patent number: 10880820
    Abstract: The present disclosure relates to a pre-5.sup.th-Generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4.sup.th-Generation (4G) communication system such as long term evolution (LTE). Provided is a method for processing System Information (SI) by a User Equipment (UE) in a mobile communication system. The method includes receiving, from a first base station (BS), information related to change of SI; and waiting for reception of changed SI based on the information.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: December 29, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Anshuman Nigam, Jung-Soo Jung, Sun-Heui Ryoo, Jung-Min Moon, Sung-Jin Lee
  • Patent number: 10834682
    Abstract: A method and an apparatus for controlling uplink power in a wireless communication system are provided. The method for controlling uplink power of a User Equipment (UE) forming a transmission link with a plurality of BSs (BSs), a power headroom report trigger event by at least one of the plurality of BSs is detected. Power headroom information of the UE is reported to at least one of the plurality of BSs.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: November 10, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Heui Ryoo, Jung-Soo Jung, Hyun-Jeong Kang, Jong-Hyung Kwun, Sung-Jin Lee
  • Publication number: 20200288348
    Abstract: The present invention relates to a method and apparatus for effectively transmitting or receiving paging in a wireless communication system supporting a plurality of services. A method for transmitting paging by a base station in a wireless communication system supporting a plurality of services according to an embodiment of the present disclosure comprises the steps of: transmitting information on a paging slice corresponding to a service in which paging is transmitted to a terminal; and transmitting the paging to the terminal through the paging slice.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 10, 2020
    Inventors: Sun-Heui RYOO, Jung-Soo JUNG, Ra-Yeon AHN, Ji-Won HWANG
  • Publication number: 20200260346
    Abstract: A method and an apparatus for controlling a waiting time related to determination of a radio link failure in a wireless communication system are provided. The method includes receiving a message from a network, if a first timer for determination of the radio link failure is running and the message includes timer information related to the waiting time, starting a second timer related to the waiting time based on the timer information, and if the second timer expires before expiration of the first timer, determining a channel situation of a serving cell as a situation of the radio link failure.
    Type: Application
    Filed: April 27, 2020
    Publication date: August 13, 2020
    Inventors: Jung-Min MOON, Anshuman NIGAM, Jung-Soo JUNG, Sun-Heui RYOO, Sung-Jin LEE
  • Patent number: 10728888
    Abstract: Disclosed is a 5G or pre-5G communication system provided so as to support a data transmission rate higher than that of a 4G communication system, such as LTE. A method and a device for transmitting information in a communication system are disclosed. The method for allocating resources in a cellular network using an unlicensed band comprises the steps of: generating at least one resource allocation signal containing information indicating a plurality of continuous uplink subframes capable of communicating through the unlicensed band; transmitting the resource allocation signal to a user equipment (UE) through the unlicensed band for the duration of at least one downlink subframe; and receiving uplink data from the UE for the duration of the continuous uplink subframes.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: July 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Hoon Park, Jung-Min Moon, Sun-Heui Ryoo, Byoung-Hoon Jung, Jung-Soo Jung
  • Publication number: 20200195620
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for communicating by a user equipment with a macro cell base station and a small cell base station in a communication system is provided. The method comprises applying a first base station security key to a first communication link with the macro cell base station; generating a second base station security key to be used for a second communication link with the small cell base station based on the first base station security key; applying the second base station security key to the second communication link with the small cell base station; and communicating through at least one of the first communication link and the second communication link.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Inventors: Sun-Heui RYOO, Soeng-Hun KIM, Jung-Soo JUNG, Jung-Min MOON, Anshuman NIGAM, Sung-Jin LEE
  • Patent number: 10659993
    Abstract: The present invention relates to a method and apparatus for effectively transmitting or receiving paging in a wireless communication system supporting a plurality of services. A method for transmitting paging by a base station in a wireless communication system supporting a plurality of services according to an embodiment of the present disclosure comprises the steps of: transmitting information on a paging slice corresponding to a service in which paging is transmitted to a terminal; and transmitting the paging to the terminal through the paging slice.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: May 19, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Heui Ryoo, Jung-Soo Jung, Ra-Yeon Ahn, Ji-Won Hwang
  • Patent number: 10638383
    Abstract: A method and an apparatus for controlling a waiting time related to determination of a radio link failure in a wireless communication system are provided. The method includes receiving a message from a network, if a first timer for determination of the radio link failure is running and the message includes timer information related to the waiting time, starting a second timer related to the waiting time based on the timer information, and if the second timer expires before expiration of the first timer, determining a channel situation of a serving cell as a situation of the radio link failure.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: April 28, 2020
    Assignee: Samsung Electroncs Co., Ltd.
    Inventors: Jung-Min Moon, Anshuman Nigam, Jung-Soo Jung, Sun-Heui Ryoo, Sung-Jin Lee
  • Patent number: 10623993
    Abstract: The present invention relates to a method and apparatus for effectively transmitting or receiving paging in a wireless communication system supporting a plurality of services. A method for transmitting paging by a base station in a wireless communication system supporting a plurality of services according to an embodiment of the present disclosure comprises the steps of: transmitting information on a paging slice corresponding to a service in which paging is transmitted to a terminal; and transmitting the paging to the terminal through the paging slice.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: April 14, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Heui Ryoo, Jung-Soo Jung, Ra-Yeon Ahn, Ji-Won Hwang
  • Patent number: 10616381
    Abstract: The present disclosure relates to a pre-5th-generation (pre-5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). A method and an apparatus for performing a hybrid automatic repeat request (HARQ) for reducing latency in wireless communication systems are provided. The method includes receiving a concatenated packet including a short transmission time interval (TTI) packet and a long TTI packet from a transmitter, decoding the short TTI packet, feeding, when decoding the short TTI packet fails, a negative acknowledgement (NACK) back to the transmitter, and receiving a retransmission packet including the short TTI packet and the long TTI packet from the transmitter.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: April 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Min Moon, Seung-Hoon Park, Sun-Heui Ryoo, Byoung-Hoon Jung, Jung-Soo Jung
  • Patent number: 10601792
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for communicating by a user equipment with a macro cell base station and a small cell base station in a communication system is provided. The method comprises applying a first base station security key to a first communication link with the macro cell base station; generating a second base station security key to be used for a second communication link with the small cell base station based on the first base station security key; applying the second base station security key to the second communication link with the small cell base station; and communicating through at least one of the first communication link and the second communication link.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: March 24, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Heui Ryoo, Soeng-Hun Kim, Jung-Soo Jung, Jung-Min Moon, Anshuman Nigam, Sung-Jin Lee
  • Patent number: 10601791
    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for communicating by a user equipment with a macro cell base station and a small cell base station in a communication system is provided. The method comprises applying a first base station security key to a first communication link with the macro cell base station; generating a second base station security key to be used for a second communication link with the small cell base station based on the first base station security key; applying the second base station security key to the second communication link with the small cell base station; and communicating through at least one of the first communication link and the second communication link.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 24, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Heui Ryoo, Soeng-Hun Kim, Jung-Soo Jung, Jung-Min Moon, Anshuman Nigam, Sung-Jin Lee