Patents by Inventor Young Man Cho
Young Man Cho 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).
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Publication number: 20220065973Abstract: Disclosed is a beacon-based positioning system. A beacon position in which a beacon is installable is defined in a target space, and a path loss model of radio frequency (RF) signals between all beacon positions and all observation positions of a scanner is determined. Among all possible installation plans for the beacon positions, an installation plan in which different beacon signals, whose RSSIs calculated using the path loss model have significant values, are received in a number greater than or equal to a minimum reference number and a total number of the beacons installed is minimum is determined as an optimal installation plan. The optimization problem of determining the optimal installation plan may be expressed by binary linear programming.Type: ApplicationFiled: August 28, 2020Publication date: March 3, 2022Applicant: SOLiD, Inc.Inventors: Young Man Cho, Yvonne Hee Jun Cho
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Patent number: 11252092Abstract: Disclosed is a distributed antenna system (DAS). The DAS includes a DAS controller, which is an OpenFlow controller, and one or more DAS units in order to dynamically control a traffic transmission policy of the DAS units using an OpenFlow protocol, wherein the DAS controller generates and changes a traffic transmission policy by reflecting a traffic transmission policy change request by operator manipulation or a software-defined network supporting application and a need for changing of the traffic transmission policy according to a status of the DAS unit and a status of a port, and the DAS unit transmits received traffic to a destination according to the policy.Type: GrantFiled: September 21, 2020Date of Patent: February 15, 2022Assignee: SOLiD Inc.Inventors: Dong Hee Kwon, Hoo Pyo Hong, Young Man Cho
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Patent number: 11202268Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.Type: GrantFiled: May 24, 2019Date of Patent: December 14, 2021Assignee: SOLiD, INC.Inventors: Dong Hee Kwon, Hoo Pyo Hong, Yong Hoon Kang, Dae Young Kim, Young Man Cho
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Publication number: 20210234746Abstract: A TSN-based distributed antenna system including a headend unit, one or more TSN switches, and one or more remote units and a fronthaul transport network constituted by the headend unit, the TSN switch, and the remote unit is provided. The packet-based fronthaul network constituted by the headend unit, the TSN switch, and the remote unit transmits traffic in a time-deterministic manner while minimizing packet loss through Ethernet to which TSN standards are applied.Type: ApplicationFiled: April 13, 2021Publication date: July 29, 2021Applicant: SOLiD, Inc.Inventors: Dong Hee KWON, Hoo Pyo HONG, Young Man CHO, Dae Young KIM, Hyun Jung KIM
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Patent number: 11005699Abstract: A TSN-based distributed antenna system including a headend unit, one or more TSN switches, and one or more remote units and a fronthaul transport network constituted by the headend unit, the TSN switch, and the remote unit is provided. The packet-based fronthaul network constituted by the headend unit, the TSN switch, and the remote unit transmits traffic in a time-deterministic manner while minimizing packet loss through Ethernet to which TSN standards are applied.Type: GrantFiled: September 18, 2020Date of Patent: May 11, 2021Assignee: SOLID, INC.Inventors: Dong Hee Kwon, Hoo Pyo Hong, Young Man Cho, Dae Young Kim, Hyun Jung Kim
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Publication number: 20210135788Abstract: A technology related to a distributed antenna system is disclosed. In an exemplary embodiment, a distributed antenna system may include a master unit and a plurality of remote units. The master unit may be interfaced with a wireless communications network and perform a bidirectional simultaneous digital radio frequency distribution of a wireless signal. The plurality of remote units may be each coupled to the master unit, and each perform a wireless transmission or reception of a split radio frequency signal to or from terminals located within a coverage. The master unit and the plurality of remote units may transmit or receive digital radio frequency signals in a wavelet transform domain. The master unit may determine whether the digital radio frequency signal, transmitted by each of the remote units, is normal, and merge the digital radio frequency signals.Type: ApplicationFiled: January 14, 2021Publication date: May 6, 2021Applicant: SOLiD Inc.Inventor: Young Man CHO
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Patent number: 10897327Abstract: A technology related to a distributed antenna system is disclosed. In an exemplary embodiment, a distributed antenna system may include a master unit and a plurality of remote units. The master unit may be interfaced with a wireless communications network and perform a bidirectional simultaneous digital radio frequency distribution of a wireless signal. The plurality of remote units may be each coupled to the master unit, and each perform a wireless transmission or reception of a split radio frequency signal to or from terminals located within a coverage. The master unit and the plurality of remote units may transmit or receive digital radio frequency signals in a wavelet transform domain. The master unit may determine whether the digital radio frequency signal, transmitted by each of the remote units, is normal, and merge the digital radio frequency signals.Type: GrantFiled: December 27, 2018Date of Patent: January 19, 2021Assignee: SOLID INC.Inventor: Young Man Cho
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Publication number: 20210006450Abstract: A TSN-based distributed antenna system including a headend unit, one or more TSN switches, and one or more remote units and a fronthaul transport network constituted by the headend unit, the TSN switch, and the remote unit is provided. The packet-based fronthaul network constituted by the headend unit, the TSN switch, and the remote unit transmits traffic in a time-deterministic manner while minimizing packet loss through Ethernet to which TSN standards are applied.Type: ApplicationFiled: September 18, 2020Publication date: January 7, 2021Applicant: SOLiD, Inc.Inventors: Dong Hee KWON, Hoo Pyo HONG, Young Man CHO, Dae Young KIM, Hyun Jung KIM
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Publication number: 20210006497Abstract: Disclosed is a distributed antenna system (DAS). The DAS includes a DAS controller, which is an OpenFlow controller, and one or more DAS units in order to dynamically control a traffic transmission policy of the DAS units using an OpenFlow protocol, wherein the DAS controller generates and changes a traffic transmission policy by reflecting a traffic transmission policy change request by operator manipulation or a software-defined network supporting application and a need for changing of the traffic transmission policy according to a status of the DAS unit and a status of a port, and the DAS unit transmits received traffic to a destination according to the policy.Type: ApplicationFiled: September 21, 2020Publication date: January 7, 2021Applicant: SOLiD Inc.Inventors: Dong Hee KWON, Hoo Pyo HONG, Young Man CHO
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Patent number: 10819644Abstract: Disclosed is a distributed antenna system (DAS). The DAS includes a DAS controller, which is an OpenFlow controller, and one or more DAS units in order to dynamically control a traffic transmission policy of the DAS units using an OpenFlow protocol, wherein the DAS controller generates and changes a traffic transmission policy by reflecting a traffic transmission policy change request by operator manipulation or a software-defined network supporting application and a need for changing of the traffic transmission policy according to a status of the DAS unit and a status of a port, and the DAS unit transmits received traffic to a destination according to the policy.Type: GrantFiled: September 28, 2018Date of Patent: October 27, 2020Assignee: SOLID, INC.Inventors: Dong Hee Kwon, Hoo Pyo Hong, Young Man Cho
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Publication number: 20200322053Abstract: An analog distributed antenna system having a set of small cells as a signal source is provided. A proposed cellular communication system includes an upper small cell unit including upper protocol processors configured to process an upper first part of a protocol stack of a small cell, a lower small cell unit including lower protocol processors configured to process a remaining second part of the protocol stack of the small cell, and a first matching switch configured to respectively match the lower protocol processors to a plurality of remote units. According to one aspect, the cellular communication system includes a common controller configured to control activation of the plurality of upper protocol processors of the upper small cell unit and the plurality of lower protocol processors of the lower small cell unit according to a required service capacity and appropriately control an operation of the first matching switch.Type: ApplicationFiled: June 19, 2020Publication date: October 8, 2020Applicant: SOLiD Inc.Inventors: Young Man CHO, Hee Hwan KWAK
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Patent number: 10785082Abstract: A TSN-based distributed antenna system including a headend unit, one or more TSN switches, and one or more remote units and a fronthaul transport network constituted by the headend unit, the TSN switch, and the remote unit is provided. The packet-based fronthaul network constituted by the headend unit, the TSN switch, and the remote unit transmits traffic in a time-deterministic manner while minimizing packet loss through Ethernet to which TSN standards are applied.Type: GrantFiled: June 15, 2019Date of Patent: September 22, 2020Assignee: SOLID, INC.Inventors: Dong Hee Kwon, Hoo Pyo Hong, Young Man Cho, Dae Young Kim, Hyun Jung Kim
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Patent number: 10727946Abstract: An analog distributed antenna system having a set of small cells as a signal source is provided. A proposed cellular communication system includes an upper small cell unit including upper protocol processors configured to process an upper first part of a protocol stack of a small cell, a lower small cell unit including lower protocol processors configured to process a remaining second part of the protocol stack of the small cell, and a first matching switch configured to respectively match the lower protocol processors to a plurality of remote units. According to one aspect, the cellular communication system includes a common controller configured to control activation of the plurality of upper protocol processors of the upper small cell unit and the plurality of lower protocol processors of the lower small cell unit according to a required service capacity and appropriately control an operation of the first matching switch.Type: GrantFiled: August 31, 2017Date of Patent: July 28, 2020Assignee: SOLiD Inc.Inventors: Young Man Cho, Hee Hwan Kwak
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Publication number: 20200092154Abstract: A TSN-based distributed antenna system including a headend unit, one or more TSN switches, and one or more remote units and a fronthaul transport network constituted by the headend unit, the TSN switch, and the remote unit is provided. The packet-based fronthaul network constituted by the headend unit, the TSN switch, and the remote unit transmits traffic in a time-deterministic manner while minimizing packet loss through Ethernet to which TSN standards are applied.Type: ApplicationFiled: June 15, 2019Publication date: March 19, 2020Applicant: SOLiD, Inc.Inventors: Dong Hee KWON, Hoo Pyo HONG, Young Man CHO, Dae Young KIM, Hyun Jung KIM
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Publication number: 20190364527Abstract: There is provided a method of processing uplink Ethernet packets of an aggregation node included in a distributed antenna system, the method includes: receiving a plurality of uplink Ethernet packets; summing the plurality of received uplink Ethernet packets; and transmitting the summed uplink Ethernet packets in an uplink direction.Type: ApplicationFiled: May 24, 2019Publication date: November 28, 2019Applicant: SOLiD, INC.Inventors: Dong Hee Kwon, Hoo Pyo Hong, Yong Hoon Kang, Dae Young Kim, Young Man Cho
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Publication number: 20190132083Abstract: A technology related to a distributed antenna system is disclosed. In an exemplary embodiment, a distributed antenna system may include a master unit and a plurality of remote units. The master unit may be interfaced with a wireless communications network and perform a bidirectional simultaneous digital radio frequency distribution of a wireless signal. The plurality of remote units may be each coupled to the master unit, and each perform a wireless transmission or reception of a split radio frequency signal to or from terminals located within a coverage. The master unit and the plurality of remote units may transmit or receive digital radio frequency signals in a wavelet transform domain. The master unit may determine whether the digital radio frequency signal, transmitted by each of the remote units, is normal, and merge the digital radio frequency signals.Type: ApplicationFiled: December 27, 2018Publication date: May 2, 2019Applicant: SOLiD Inc.Inventor: Young Man CHO
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Publication number: 20190104072Abstract: Disclosed is a distributed antenna system (DAS). The DAS includes a DAS controller, which is an OpenFlow controller, and one or more DAS units in order to dynamically control a traffic transmission policy of the DAS units using an OpenFlow protocol, wherein the DAS controller generates and changes a traffic transmission policy by reflecting a traffic transmission policy change request by operator manipulation or a software-defined network supporting application and a need for changing of the traffic transmission policy according to a status of the DAS unit and a status of a port, and the DAS unit transmits received traffic to a destination according to the policy.Type: ApplicationFiled: September 28, 2018Publication date: April 4, 2019Inventors: Dong Hee KWON, Hoo Pyo HONG, Young Man CHO
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Patent number: 10200157Abstract: A technology related to a distributed antenna system is disclosed. In an exemplary embodiment, a distributed antenna system may include a master unit and a plurality of remote units. The master unit may be interfaced with a wireless communications network and perform a bidirectional simultaneous digital radio frequency distribution of a wireless signal. The plurality of remote units may be each coupled to the master unit, and each perform a wireless transmission or reception of a split radio frequency signal to or from terminals located within a coverage. The master unit and the plurality of remote units may transmit or receive digital radio frequency signals in a wavelet transform domain. The master unit may determine whether the digital radio frequency signal, transmitted by each of the remote units, is normal, and merge the digital radio frequency signals.Type: GrantFiled: April 6, 2016Date of Patent: February 5, 2019Assignee: SOLiD Inc.Inventor: Young Man Cho
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Publication number: 20180076898Abstract: An analog distributed antenna system having a set of small cells as a signal source is provided. A proposed cellular communication system includes an upper small cell unit including upper protocol processors configured to process an upper first part of a protocol stack of a small cell, a lower small cell unit including lower protocol processors configured to process a remaining second part of the protocol stack of the small cell, and a first matching switch configured to respectively match the lower protocol processors to a plurality of remote units. According to one aspect, the cellular communication system includes a common controller configured to control activation of the plurality of upper protocol processors of the upper small cell unit and the plurality of lower protocol processors of the lower small cell unit according to a required service capacity and appropriately control an operation of the first matching switch.Type: ApplicationFiled: August 31, 2017Publication date: March 15, 2018Applicant: SOLiD Inc.Inventors: Young Man CHO, Hee Hwan KWAK
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Publication number: 20170126362Abstract: A technology related to a distributed antenna system is disclosed. In an exemplary embodiment, a distributed antenna system may include a master unit and a plurality of remote units. The master unit may be interfaced with a wireless communications network and perform a bidirectional simultaneous digital radio frequency distribution of a wireless signal. The plurality of remote units may be each coupled to the master unit, and each perform a wireless transmission or reception of a split radio frequency signal to or from terminals located within a coverage. The master unit and the plurality of remote units may transmit or receive digital radio frequency signals in a wavelet transform domain. The master unit may determine whether the digital radio frequency signal, transmitted by each of the remote units, is normal, and merge the digital radio frequency signals.Type: ApplicationFiled: April 6, 2016Publication date: May 4, 2017Applicant: SOLiD Inc.Inventor: Young Man CHO