Patents by Inventor Sang Heon PACK

Sang Heon PACK 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: 10798761
    Abstract: A method for establishing a plurality of protocol data unit (PDU) sessions between a user equipment (UE) and a data network (DN) by the UE may comprise transmitting a message to establish the plurality of PDU sessions to at least one network function (NF) of a plurality of NFs, exchanging a signal to establish the plurality of PDU sessions among the UE, a radio access network (RAN), and the plurality of NFs based on the message, and establishing the plurality of PDU sessions between the UE and the DN according to predetermined priority and based on the signal, wherein each of the plurality of PDU sessions corresponds to a network slice (NS) for a particular service, wherein the message includes information about the particular service corresponding to the plurality of PDU sessions, and wherein the priority is determined based on the information about the particular service.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: October 6, 2020
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Young-Kyo Baek, Jung-Je Son, Sung-Hoon Kim, Sang-Heon Pack, Ho-Yeon Lee, Han-Eul Ko, Won-Jun Lee, Cheng Long Shao, Jae-Wook Lee, Hee-Jun Roh, Tae-Kyung Kim, Sun-Jae Kim
  • Patent number: 10348641
    Abstract: Disclosed is a method of joint optimization of channel selection and frame scheduling for coexistence of LTE and WLAN in an unlicensed band, the method being performed by a baseband unit (BBU) pool and the method includes: selecting a component carrier (CC) having a highest idle probability by considering an idle probability of the CC for the unlicensed band; determining the number NI of idle subframes in the selected CC by considering a residence time in a WLAN system queue; and allocating a resource block (RB) to an LTE user terminal in a cell based on the number of selected CCs and the number of idle subframes and which appropriately selects a resource in a frequency domain and a time domain in LTE to acquire high throughput and fairness in the LTE and the WLAN in the unlicensed band.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: July 9, 2019
    Assignee: UCOMM TECHNOLOGY CO., LTD.
    Inventors: Sang Heon Pack, Haneul Ko, Jaewook Lee
  • Patent number: 10341429
    Abstract: A method for configuring a service function path (SFP) for a software defined network (SDN) based service function chain (SFC) may comprise configuring a SFC which is a set of ordered service functions (SFs) by reflecting requirements of a flow flowing into a network; generating a primary SFP that is a path through which the flow is to be actually transmitted in the network according to the SFC; generating a secondary SFP against an error of the primary SFP; and controlling a transmission path through which the flow is transmitted to be at least one of the primary SFP and the secondary SFP.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: July 2, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Ji Young Kwak, Sae Hoon Kang, Hyun Joo Bae, Gwang Woo Park, Sang Heon Pack, Ho Sung Baek
  • Publication number: 20180359795
    Abstract: The present disclosure relates to a 5G or pre-5G communication system for supporting higher data transmission rates beyond 4G communication systems such as LTE systems.
    Type: Application
    Filed: June 8, 2018
    Publication date: December 13, 2018
    Inventors: Young-Kyo BAEK, Jung-Je SON, Sung-Hoon KIM, Sang-Heon PACK, Ho-Yeon LEE, Han-Eul KO, Won-Jun LEE, Cheng Long SHAO, Jae-Wook LEE, Hee-Jun ROH, Tae-Kyung KIM, Sun-Jae KIM
  • Publication number: 20180270166
    Abstract: Disclosed is a method of joint optimization of channel selection and frame scheduling for coexistence of LTE and WLAN in an unlicensed band, the method being performed by a baseband unit (BBU) pool and the method includes: selecting a component carrier (CC) having a highest idle probability by considering an idle probability of the CC for the unlicensed band; determining the number NI of idle subframes in the selected CC by considering a residence time in a WLAN system queue; and allocating a resource block (RB) to an LTE user terminal in a cell based on the number of selected CCs and the number of idle subframes and which appropriately selects a resource in a frequency domain and a time domain in LTE to acquire high throughput and fairness in the LTE and the WLAN in the unlicensed band.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 20, 2018
    Inventors: Sang Heon PACK, Haneul KO, Jaewook LEE
  • Patent number: 10003954
    Abstract: The present invention relates to a method and an apparatus for managing the mobility of a terminal in a mobile agent according to a method for distributive mobility management, and the method according to one embodiment of the present invention comprises: a step for detecting a change in location information of a terminal according to the movement of the terminal and storing the changed location information in a first storage unit; a step for storing, in a second storage unit, an index of the first storage unit in which the changed location information is stored; and a step for transmitting, to another mobile agent, an index value stored in the second storage unit at a point in time at which a predetermined condition is satisfied, and initializing the second storage unit.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: June 19, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., Korea University Research and Business Foundation
    Inventors: Sang-Heon Pack, Han-Eul Ko, Gi-Won Lee, Ki-Suk Kweon, Jung-Shin Park
  • Publication number: 20180103091
    Abstract: A method for configuring a service function path (SFP) for a software defined network (SDN) based service function chain (SFC) may comprise configuring a SFC which is a set of ordered service functions (SFs) by reflecting requirements of a flow flowing into a network; generating a primary SFP that is a path through which the flow is to be actually transmitted in the network according to the SFC; generating a secondary SFP against an error of the primary SFP; and controlling a transmission path through which the flow is transmitted to be at least one of the primary SFP and the secondary SFP.
    Type: Application
    Filed: June 20, 2017
    Publication date: April 12, 2018
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Ji Young KWAK, Sae Hoon KANG, Hyun Joo BAE, Gwang Woo PARK, Sang Heon PACK, Ho Sung BAEK
  • Patent number: 9906617
    Abstract: A method for operating a receiving portable terminal in a mobile communication system includes receiving a first packet from a sending portable terminal, determining a fingerprint overlapping a fingerprint corresponding to at least one chunk of the first packet in a fingerprint set cache, determining a fingerprint set including the most redundant fingerprints, in the fingerprint set cache, determining at least one fingerprint to send, in the determined fingerprint set, sending the at least one determined fingerprint to the sending portable terminal, and receiving a second packet from the sending portable terminal. An apparatus includes a controller configured to determine at least one redundant fingerprint overlapping a fingerprint corresponding to at least one chunk of the first packet in a fingerprint set cache, determine a fingerprint set including the most redundant fingerprint in the fingerprint set cache, and determine at least one fingerprint to send in the determined fingerprint set.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: February 27, 2018
    Assignees: Samsung Electronics Co., Ltd., Korea University Research and Business Foundation
    Inventors: Sang-Heon Pack, Gwang-Woo Park, Young-Jun Shim, Chung-Gu Kang
  • Patent number: 9756496
    Abstract: A method of a Mobile Station (MS) for discovering neighbor MSs in a Device to Device (D2D) network includes broadcasting, by a discovery MS, a discovery request signal for discovering neighbor MSs, using a discovery request resource region repeated with a first period, if a neighbor MS discovery event is detected; and receiving, by the discovery MS, a discovery signal from at least one of other MSs in response to the discovery request signal, using a discovery resource region repeated with a second period. Other embodiments including a method for a central node discovering neighbor MSs and a discovery MS and a central node are also disclosed.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: September 5, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hye Joong Kang, Chung Gu Kang, Kwon Yeol Park, Sang Heon Pack
  • Publication number: 20160219426
    Abstract: The present invention relates to a method and an apparatus for managing the mobility of a terminal in a mobile agent according to a method for distributive mobility management, and the method according to one embodiment of the present invention comprises: a step for detecting a change in location information of a terminal according to the movement of the terminal and storing the changed location information in a first storage unit; a step for storing, in a second storage unit, an index of the first storage unit in which the changed location information is stored; and a step for transmitting, to another mobile agent, an index value stored in the second storage unit at a point in time at which a predetermined condition is satisfied, and initializing the second storage unit.
    Type: Application
    Filed: September 23, 2014
    Publication date: July 28, 2016
    Inventors: Sang-Heon Pack, Han-Eul Ko, Gi-Won Lee, Ki-Suk Kweon, Jung-Shin Park
  • Publication number: 20150327163
    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). The present disclosure relates to a method and apparatus for selecting a mobility anchor (MA) in a mobile communication system. A method of operating a controller which selects an MA comprises: receiving a bearer configuration request signal from a terminal; acquiring load information for each of a plurality of MAs and mobility information of the terminal; and determining an MA of the terminal on the basis of the load information of each of the plurality of MAs and the mobility information of the terminal.
    Type: Application
    Filed: May 12, 2015
    Publication date: November 12, 2015
    Inventors: Sang-Heon Pack, Han-Eul Ko, Gi-Won Lee
  • Patent number: 9042284
    Abstract: There are provided an apparatus and a method for establishing a contention window in a WiMedia wireless network. The contention window establishing apparatus includes: a parsing unit extracting the number of devices that intend to transmit data from a beacon received during a beacon period and an access category (AC) of each device; a calculation unit calculating a transmission probability of each access category (AC) on the basis of the extracted number of devices; and a contention window establishing unit establishing a contention window for each access category (AC) on the basis of the calculated transmission probability, to reduce contentions among the devices and decrease data transmission latency time, thereby maximizing efficiency in data transmission latency time.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: May 26, 2015
    Assignees: Samsung Electro-Mechanics Co., Ltd., Korea University Industrial & Academic Collaboration Foundation
    Inventors: Joun Sup Park, Chul Gyun Park, Chul Hee Kang, Sang Heon Pack, Hyun Hee Park
  • Patent number: 8942084
    Abstract: A method includes continuously receiving N data frames encoded from K source data packets by an erasure coding method; checking for errors in the received N data frames; and transmitting an acknowledge (ACK) message informing that the source data packets are capable of being restored, when the number (R) of data frames not containing errors is equal to or greater than the number (K) of source data packets, and transmitting an ACK message including the number (X) of data frames for which retransmission is to be requested when the number (R) of data frames not containing errors is less than the number (K) of source data packets, as a result of the checking.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: January 27, 2015
    Assignees: Samsung Electro-Mechanics Co., Ltd., Korea University Research & Business Foundation
    Inventors: Joun Sup Park, Chul Gyun Park, Sang Heon Pack, Jae Duck Ko
  • Publication number: 20150017979
    Abstract: A method of a Mobile Station (MS) for discovering neighbor MSs in a Device to Device (D2D) network includes broadcasting, by a discovery MS, a discovery request signal for discovering neighbor MSs, using a discovery request resource region repeated with a first period, if a neighbor MS discovery event is detected; and receiving, by the discovery MS, a discovery signal from at least one of other MSs in response to the discovery request signal, using a discovery resource region repeated with a second period. Other embodiments including a method for a central node discovering neighbor MSs and a discovery MS and a central node are also disclosed.
    Type: Application
    Filed: July 11, 2014
    Publication date: January 15, 2015
    Inventors: Hye Joong Kang, Chung Gu Kang, Kwon Yeol Park, Sang Heon Pack
  • Publication number: 20140297779
    Abstract: A method for operating a receiving portable terminal in a mobile communication system includes receiving a first packet from a sending portable terminal, determining a fingerprint overlapping a fingerprint corresponding to at least one chunk of the first packet in a fingerprint set cache, determining a fingerprint set including the most redundant fingerprints, in the fingerprint set cache, determining at least one fingerprint to send, in the determined fingerprint set, sending the at least one determined fingerprint to the sending portable terminal, and receiving a second packet from the sending portable terminal. An apparatus includes a controller configured to determine at least one redundant fingerprint overlapping a fingerprint corresponding to at least one chunk of the first packet in a fingerprint set cache, determine a fingerprint set including the most redundant fingerprint in the fingerprint set cache, and determine at least one fingerprint to send in the determined fingerprint set.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Applicants: Korea University Research and Business Foundation, Samsung Electronics Co., Ltd.
    Inventors: Sang-Heon Pack, Gwang-Woo Park, Young-Jun Shim, Chung-Gu Kang
  • Publication number: 20140003412
    Abstract: There are provided an apparatus and a method for establishing a contention window in a WiMedia wireless network. The contention window establishing apparatus includes: a parsing unit extracting the number of devices that intend to transmit data from a beacon received during a beacon period and an access category (AC) of each device; a calculation unit calculating a transmission probability of each access category (AC) on the basis of the extracted number of devices; and a contention window establishing unit establishing a contention window for each access category (AC) on the basis of the calculated transmission probability, to reduce contentions among the devices and decrease data transmission latency time, thereby maximizing efficiency in data transmission latency time.
    Type: Application
    Filed: August 30, 2013
    Publication date: January 2, 2014
    Applicants: Korea University Industrial & Academic Collaboration Foundation, SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Juon Sup Park, Chul Gyun Park, Chul Hee Kang, Sang Heon Pack, Hyun Hee Park
  • Patent number: 8553600
    Abstract: There are provided an apparatus and a method for establishing a contention window in a WiMedia wireless network. The contention window establishing apparatus includes: a parsing unit extracting the number of devices that intend to transmit data from a beacon received during a beacon period and an access category (AC) of each device; a calculation unit calculating a transmission probability of each access category (AC) on the basis of the extracted number of devices; and a contention window establishing unit establishing a contention window for each access category (AC) on the basis of the calculated transmission probability, to reduce contentions among the devices and decrease data transmission latency time, thereby maximizing efficiency in data transmission latency time.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: October 8, 2013
    Assignees: Samsung Electro-Mechanics Co., Ltd., Korea University Industrial & Academic Collaboration Foundation
    Inventors: Joun Sup Park, Chul Gyun Park, Chul Hee Kang, Sang Heon Pack, Hyun Hee Park
  • Patent number: 8509197
    Abstract: A media access control method in a wireless network is provided. Each of devices in the wireless network determines one of a plurality of beacon slots within a beacon period as a beacon slot of the device. The devices in the wireless network determine a data transmission order in accordance with the slot numbers of the beacon slots of the devices in a reserved period of a data transmission period. Data is transmitted in the unreserved period in accordance with the determined data transmission order.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: August 13, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Chul Gyun Park, Chul Hee Kang, Sang Heon Pack, Hyun Hee Park, Joun Sup Park
  • Publication number: 20130016600
    Abstract: There is provided a network apparatus capable of effectively retransmitting a frame in a frame aggregation environment, and a method of retransmitting a frame using the same. The network apparatus includes: a transmitting node broadcasting a plurality of data frames in a frame aggregation environment; a receiving node receiving the plurality of broadcast data frames and broadcasting a reception result; and at least one relay node receiving and storing at least a portion of the plurality of broadcast data frames and transmitting, together with the transmitting node, a data frame for which retransmission is required to the receiving node according to a calculated transmission success rate when the reception result from the receiving node is a retransmission request.
    Type: Application
    Filed: November 3, 2011
    Publication date: January 17, 2013
    Inventors: Sung Ho HWANG, Joun Sup Park, Ki Hong Kim, Chul Gyun Park, Tae Won Song, Sang Heon Pack
  • Publication number: 20120250495
    Abstract: A method of reducing a retransmission of a data frame and a receiving node therefor continuously receiving N data frames generated by encoding K source data packets by erasure coding. Errors in the received N data frames are checked, and an ACK message transmitted informing that the source data packets are capable of being restored, when the number (R) of data frames not containing errors is equal to or greater than the number (K) of source data packets. An ACK message including the number (X) of data frames for which retransmission is to be requested is transmitted when the number (R) of data frames not containing errors is less than the number (K) of source data packets, as a result of checking for errors in the received N data frames. Despite errors in some of the data frames, data may be restored without requesting the retransmission of data frames.
    Type: Application
    Filed: December 7, 2011
    Publication date: October 4, 2012
    Inventors: Joun Sup PARK, Chul Gyun PARK, Sang Heon PACK, Jae Duck KO