Patents by Inventor Yun-Sung Kim

Yun-Sung Kim 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: 11129073
    Abstract: A wireless communication network hands-over wireless User Equipment (UE) from a serving cell to a neighbor cell. The serving cell wirelessly exchanges data with the wireless UE and determines uplink interference for a radio band. The serving cell wirelessly transfers an uplink interference offset to the wireless UE that indicates the uplink interference at the serving cell for the radio band. The wireless UE uses the uplink interference offset to trigger a handover request to the serving cell. The handover request indicates downlink signal strength at the wireless UE for the serving cell. The serving cell initiates a handover to a neighbor cell responsive to a combination of the downlink signal strength at the wireless UE and the uplink interference for the serving cell falling below a handover threshold. After the handover, the neighbor cell wirelessly exchanges data with the wireless UE over a different radio band.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: September 21, 2021
    Assignee: Sprint Communications Company L.P.
    Inventors: Yun Sung Kim, Sanghoon Sung, Jason Peter Sigg, PinalKumari K. Tailor
  • Patent number: 11115884
    Abstract: A serving access node is determined as being capable of transmitting a mMIMO signal, responsive to which handover parameters are adjusted for wireless devices attached to the serving access node and receiving the mMIMO signal. Wireless devices attached to a sector deployed by a first access node and not the mMIMO signal are configured to utilize different handover parameters such that the non mMIMO wireless devices request handovers using standard signal level thresholds.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: September 7, 2021
    Assignee: T-Mobile Innovations LLC
    Inventors: Yun Sung Kim, Sandeep Mangrulkar, Minho Song, Sanghoon Sung
  • Publication number: 20210258849
    Abstract: A wireless communication network hands-over wireless User Equipment (UE) from a serving cell to a neighbor cell. The serving cell wirelessly exchanges data with the wireless UE and determines uplink interference for a radio band. The serving cell wirelessly transfers an uplink interference offset to the wireless UE that indicates the uplink interference at the serving cell for the radio band. The wireless UE uses the uplink interference offset to trigger a handover request to the serving cell. The handover request indicates downlink signal strength at the wireless UE for the serving cell. The serving cell initiates a handover to a neighbor cell responsive to a combination of the downlink signal strength at the wireless UE and the uplink interference for the serving cell falling below a handover threshold. After the handover, the neighbor cell wirelessly exchanges data with the wireless UE over a different radio band.
    Type: Application
    Filed: February 18, 2020
    Publication date: August 19, 2021
    Inventors: Yun Sung Kim, Sanghoon Sung, Jason Peter Sigg, PinalKumari K. Tailor
  • Patent number: 11096231
    Abstract: A method and system to help control connectivity of a UE served with dual connectivity by a master node and a plurality of secondary nodes. An intermediary that is disposed between a core-network gateway system and the secondary nodes tracks data flow between the gateway system and the secondary nodes and provides the master node with a data-flow report, which the master node could use as a basis to trigger release of the UE's RRC connection, and/or to control addition or removal of one or more secondary nodes for the UE's dual-connectivity service.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: August 17, 2021
    Assignee: Sprint Spectrum L.P.
    Inventors: Sanghoon Sung, Yun Sung Kim, Udit Thakore, George W. Harter, III
  • Patent number: 11071028
    Abstract: Access nodes in a network are configured to periodically measure cell loads and exchange cell load measurements with neighbors. At each access node, cell loads are compared with load thresholds, and with neighboring loads, to determine whether or not load balancing operations should be triggered. Load balancing operations include reducing or increasing an effective coverage area of one or both of the congested cell and the neighbor cell by adjusting a handover threshold parameter, such as a threshold signal level. Adjusting thresholds at a congested cell triggers more handovers from the congested cell to the non-congested cell. Similarly, adjusting thresholds at a non-congested cell prevents handovers from the non-congested cell to the congested cell.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: July 20, 2021
    Assignee: T-MOBILE INNOVATIONS LLC
    Inventors: Yun Sung Kim, Pinal Tailor, Sanghoon Sung, Tri Duong
  • Patent number: 11051220
    Abstract: Selecting a first BWP for a first carrier deployed by an access node based on requirements of wireless devices attached to the first carrier, selecting a second BWP for a second carrier deployed by the access node based on requirements of wireless devices attached to the second carrier, monitoring a MU-MIMO performance for each carrier, and performing handovers of wireless devices between the first and second carriers based on the MU-MIMO performance.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: June 29, 2021
    Assignee: T-MOBILE INNOVATIONS LLC
    Inventors: Minho Song, Hadeel Fayad, Sanghoon Sung, Yun Sung Kim
  • Patent number: 10993242
    Abstract: Methods and systems are provided for dynamic performance of antenna calibration. To ensure channel reciprocity of downlink and uplink channels, antenna calibration must be performed with some degree of regularity. The present disclosure includes systems and methods for performing antenna calibration, wherein noise levels are determined at various subframes of wireless telecommunication frame structures as a basis for determining when the calibration signal should be transmitted in an OFDM symbol. Utilizing the disclosed systems and methods yields preferred antenna calibration, avoiding gain degradations caused by decreases in propagation performance.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: April 27, 2021
    Assignee: Sprint Communications Company L.P.
    Inventors: Yun Sung Kim, Jason Sigg, Sanghoon Sung, Pinal Tailor
  • Patent number: 10991977
    Abstract: A method of manufacturing a high-ion conductive sulfide-based solid electrolyte using dissolution-precipitation includes preparing a composite solvent including a first solvent including a cyano group and a second solvent having a polarity index of less than 4, introducing a raw material including lithium sulfide (Li2S) and phosphorus pentasulfide (P2S5) into the composite solvent, and stirring the raw material to obtain a sulfide precipitate.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: April 27, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, Industry-University Cooperation Foundation Hanyang University
    Inventors: Ju Yeong Seong, In Woo Song, Hong Seok Min, Yong Jun Jang, Yun Sung Kim, Dong Wook Shin, Sun Ho Choi, Ji U Ann, Ji Yae Do, Seung Woo Lim
  • Publication number: 20210083322
    Abstract: A method of manufacturing a cathode for an all-solid-state battery includes: stacking a protective member on a cathode current collector, the protective member including a protective layer and a mask layer disposed on the protective layer and having a central portion which is an empty space; coating the protective member with a cathode material so that the central portion of the protective member is filled with the cathode material; and removing the mask layer to form a cathode coating layer.
    Type: Application
    Filed: September 2, 2020
    Publication date: March 18, 2021
    Inventors: Yong Gu Kim, Yun Sung Kim, Ji Na Kim, Sa Heum Kim, Hong Seok Min
  • Patent number: 10952270
    Abstract: In an arrangement where an access node (e.g., a Node-B) is used in dual-connectivity service of UEs that are served by other access nodes, resources of the access node could be dynamically allocated to the UEs based at least on respective priorities designated for the other access nodes. For instance, each other access node could be prioritized based on its type, such as whether it is a macro access node, a small-cell access node, an indoor access node, an access node for a special event, or a access node for dedicated service, among other possibilities, and allocation of resources of the jointly-used access node could be defined based on these priorities, giving higher resource-allocation priority to UEs that are served by a higher priority other access node and giving lower resource-allocation priority to UEs that are served by a lower priority other access node.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: March 16, 2021
    Assignee: Sprint Spectrum L.P.
    Inventors: Sanghoon Sung, Yun Sung Kim, George W. Harter, III, Udit Thakore
  • Patent number: 10897742
    Abstract: Methods and systems are provided for dynamically adjusting the power supplied to an antenna system. The dynamic adjustment of power is based on a total load of an antenna system and a quality of service class identifier (QCI) value. When the total load and the load of the QCI value identifier (e.g., QCI-1) are below a predefined threshold, the power supply to the antenna system can be adjusted. The adjustment can be a complete shut-down of the entire power supply. The adjustment can be a gradual reduction in the power supply provided to the antenna system. The power supply may be adjusted with respect to the entire antenna system, an antenna array of the antenna system, a node of the antenna array, an antenna element of the node, and the like.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: January 19, 2021
    Assignee: Sprint Communications Company L.P.
    Inventors: Sandeep Padmakar Mangrulkar, Yun Sung Kim, Sanghoon Sung, Nagi Mansour
  • Patent number: 10893562
    Abstract: A cell site that has multiple first-RAT carriers will monitor a capacity demand respectively of each first-RAT carrier, with capacity demand representing an extent to which adding more service capacity could be useful in view of the state of service on the 4G carrier. Further, the cell site will dynamically allocate resources of a second-RAT carrier for use in dual-connectivity service of UEs served on various ones of the first-RAT carriers, with the allocation being based on the capacity demands of the various primary-RAT carriers. For instance, if a first first-RAT carrier has a higher capacity demand than a second first-RAT carrier, then the cell site could allocate a more resources of the secondary-RAT carrier for use in dual-connectivity service of UEs served on the first first-RAT carrier than for use in dual-connectivity service of UEs served on the second first-RAT carrier.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: January 12, 2021
    Assignee: Sprint Spectrum L.P.
    Inventors: Sanghoon Sung, Yun Sung Kim, George W. Harter, III, Udit Thakore
  • Publication number: 20200403227
    Abstract: The present disclosure relates to a method of manufacturing a cathode composite for an all-solid-state battery and a method of manufacturing an all-solid-state battery including the same. In particular, the present disclosure relates to a method of manufacturing a cathode composite for an all-solid-state battery in which the cathode composite is manufactured by mixing a solid electrolyte, a conductive material and a cathode active material with a solvent, and then performing two-step vacuum drying, whereby interfacial resistance between the cathode active material, the solid electrolyte and the conductive material is reduced to thus increase ionic conductivity, thereby improving battery performance and capacity, and a method of manufacturing an all-solid-state battery including the same.
    Type: Application
    Filed: December 4, 2019
    Publication date: December 24, 2020
    Applicants: Hyundai Motor Company, KIA Motors Corporation
    Inventors: In Woo SONG, Ju Yeong SEONG, Yun Sung KIM, Hong Seok MIN, Yong Jun JANG
  • Publication number: 20200395631
    Abstract: Disclosed are a solid electrolyte composite having high flexibility and strength, a method of manufacturing the same and an electrochemical device including the same. The solid electrolyte composite includes a matrix including a solid electrolyte, and fibrous polymers located in the same layer as the matrix and distributed in the matrix, and is manufactured by preparing a first solution including a polymer material, preparing a second solution including a solid electrolyte, producing fibrous polymers by electrospinning the first solution and simultaneously obtaining a structure configured such that the solid electrolyte is loaded between the fibrous polymers by electrospraying the second solution, and pressing the structure.
    Type: Application
    Filed: January 13, 2020
    Publication date: December 17, 2020
    Inventors: Sang Mo Kim, Hong Seok Min, Sang Heon Lee, Jae Min Lim, Ju Yeong Seong, Yun Sung Kim, Sang Young Lee, Jung Hwan Kim, Sang Ho Hong
  • Patent number: 10868713
    Abstract: A method and corresponding system for configuring an eNodeB for improved circuit-switched-fallback (CSFB) service. The method includes detecting that, during past CSFB call setup for UEs served by the eNodeB, UEs reported as a strongest fallback coverage area a fallback coverage area that is not included in the eNodeB's CSFB-candidate data. And the method includes responsively (i) determining, based on location information and based on an identifier of the reported fallback coverage area, a node of the fallback network that the eNodeB's network can contact to facilitate CSFB call setup in the reported fallback coverage area, and (ii) adding to the CSFB-candidate data a record of the reported coverage area in association with a node identifier of the determined node, the added record being thereafter useable by the eNodeB to facilitate CSFB call setup in the reported fallback coverage area for a UE served by the eNodeB.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: December 15, 2020
    Assignee: Sprint Spectrum L.P.
    Inventors: Sandeep Mangrulkar, Yun Sung Kim, Tri Duong, Sanghoon Sung
  • Patent number: 10862553
    Abstract: When a base station groups a given user equipment device (UE) together with one or more other UEs for multi-user multiple-input-multiple-output (MU-MIMO) service, the base station will predict a level of RF correlation between the given UE and the one or more other UEs of the group (e.g., based angular separation between beam direction of the UE and beam direction of each of the one or more other UEs). And the base station will use that predicted level of RF correlation as a basis to adjust a modulation and coding scheme (MCS) that the base station and the given UE will use for data communication with each other, so as to help improve data communication between the base station and the given UE in the presence of the predicted RF correlation.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: December 8, 2020
    Assignee: Sprint Spectrum L.P.
    Inventors: Yun Sung Kim, Pinal Tailor, Sanghoon Sung, Jason P. Sigg
  • Publication number: 20200373624
    Abstract: In manufacturing an all-solid-state battery, a cell assembly is pressurized rather than pressurizing each cell unit, and the structure of the battery is simplified by using a reduced number of first electrode current collectors and second electrode current collectors. In particular, the all-solid-state battery includes: first units each including a first electrode current collector and a first electrode active material layer provided on each of opposite surfaces of the first electrode current collector; second units each including a second electrode current collector and a second electrode active material layer provided on each of opposite surfaces of the second electrode current collector; and a solid electrolyte layer disposed between a corresponding first unit and a corresponding second unit.
    Type: Application
    Filed: October 11, 2019
    Publication date: November 26, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yong Seok CHOI, Jae Min LIM, Soon Chul BYUN, In Woo SONG, Yun Sung KIM
  • Publication number: 20200350611
    Abstract: Disclosed are an all-solid-state battery having high energy density and a method for manufacturing the same. One battery structure is pressed instead of pressing each cell unit, an amount of first or second electrode current collectors consumed is reduced, and insulating members are used, thereby simplifying a manufacturing process of the all-solid-state battery and allowing the all-solid-state battery to have high energy density and a stable structure.
    Type: Application
    Filed: December 5, 2019
    Publication date: November 5, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yong Seok CHOI, Hong Seok MIN, Soon Chul BYUN, Yun Sung KIM, Yong Gu KIM, Jae Min LIM
  • Patent number: 10827402
    Abstract: In a Multi-User Multiple Input Multiple Output (MU-MIMO) radio, networking circuitry transfers MU-MIMO target information to a neighbor radio. The neighbor radio processes the MU-MIMO target information to propose User Equipment (UEs) for handover from the neighbor radio to the MU-MIMO radio. In the MU-MIMO radio, transceiver circuitry determines MU-MIMO channel characteristics for the UEs. Based on their MU-MIMO channel characteristics, the networking circuitry selects some of the UEs from the handover proposals and rejects the other UEs. The transceiver circuitry wirelessly transfers handover acceptance signals to the selected UEs. The transceiver circuitry wirelessly transfers handover rejection signals to the rejected UEs. The transceiver circuitry wirelessly transfers user data to the selected UEs using MU-MIMO.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: November 3, 2020
    Assignee: Sprint Communications Company L.P.
    Inventors: Sanghoon Sung, Yun Sung Kim, Hau V. Tran, Min Ho Song
  • Patent number: 10818970
    Abstract: Disclosed is an all-solid battery, including a cathode, an anode, and a solid electrolyte layer. The solid electrolyte layer may include a first solid electrolyte having an ionic conductivity ranging from greater than about 5×10?3 S/cm to about 1×10?1 S/cm and a second solid electrolyte having an ionic conductivity ranging from greater than about 5×10?4 S/cm to about 1×10?2 S/cm.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: October 27, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yong Sub Yoon, Yun Sung Kim, Pil Gun Oh, Hong Seok Min, Oh Min Kwon