Patents by Inventor Myung Cheol Kim
Myung Cheol 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).
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Patent number: 12317172Abstract: Examples described herein relate to a method for reconfiguring a beacon by an access point (AP) to minimize or avoid network outages experienced by client devices connected to the AP. The AP transmits a beacon comprising a basic service set identifier (BSSID) field and a Multiple BSSID (MBSSID) element. The MBSSID element corresponds to an MBSSID set comprising a transmitted BSSID associated with a transmitted virtual access point (VAP) and a non-transmitted BSSID associated with a non-transmitted VAP, where the BSSID field in the beacon is set to the transmitted BSSID. Further, the AP reconfigures the beacon to generate a reconfigured beacon upon determining that the transmitted VAP is non-functional. In particular, the BSSID field in the reconfigured beacon is set to the non-transmitted BSSID of the MBSSID set. Moreover, the AP transmits the reconfigured beacon to the client device.Type: GrantFiled: May 11, 2022Date of Patent: May 27, 2025Assignee: Hewlett Packard Enterprise Development LPInventors: Nitin A. Changlani, Abhiruchi Dakshinkar, Qiang Zhou, Myung Cheol Kim
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Patent number: 11947033Abstract: A method for improving dynamic frequency selection (DFS) includes receiving, by an access point, a plurality of pulses in a DFS channel of the access point, determining, by the access point, a plurality of characteristics of the plurality of pulses, varying, by the access point, a threshold for radar detection, and determining, by the access point and based on at least one of the plurality of characteristics, whether the plurality of pulses are radar.Type: GrantFiled: April 30, 2020Date of Patent: April 2, 2024Assignee: Hewlett Packard Enterprise Development LPInventors: Jean-Francois Gagnon, Andre Beaudin, Myung Cheol Kim
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Patent number: 11852743Abstract: Systems and methods are provided for learning radio frequency pulses transmitted at various frequencies in a wireless environment, including false radar signals and actual radar. For example, the system can keep a list of radio frequency pulse characteristics detected by access points (APs) but ignored when not declared a radar. The detected radio frequency pulse can be compared with those on the list and may be added to the deny-list if not radar. The AP learns what intervals are normal for the communication environment and if the noise someday looks like a real radar (but it not actually a radar), it will not be classified as radar because it is on the deny-list.Type: GrantFiled: February 4, 2021Date of Patent: December 26, 2023Assignee: Hewlett Packard Enterprise Development LPInventors: Jean-Francois Gagnon, Myung Cheol Kim, Andre Beaudin
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Patent number: 11856428Abstract: Examples described herein relate to an investigator device and a method for determining a condition of an antenna of an access point (AP). At least one investigator device may receive one or more antenna condition test frames transmitted via a plurality of antennas of the AP Further, the at least one investigator device may determine an average received signal strength indicator (RSSI) value corresponding to each of the plurality of antennas based on the one or more antenna condition test frames. A condition of the plurality of antennas of the AP may be determined based on a relative comparison between the average RSSI value corresponding to each of the plurality of antennas of the AP. Moreover, in some examples, the at least one investigator device may send a notification to an administrator of the AP based on the condition of the plurality of antennas.Type: GrantFiled: July 29, 2021Date of Patent: December 26, 2023Assignee: Hewlett Packard Enterprise Development LPInventors: Shubham Saloni, Myung Cheol Kim, Abhiruchi Dakshinkar
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Publication number: 20230370952Abstract: Examples described herein relate to a method for reconfiguring a beacon by an access point (AP) to minimize or avoid network outages experienced by client devices connected to the AP. The AP transmits a beacon comprising a basic service set identifier (BSSID) field and a Multiple BSSID (MBSSID) element. The MBSSID element corresponds to an MBSSID set comprising a transmitted BSSID associated with a transmitted virtual access point (VAP) and a non-transmitted BSSID associated with a non-transmitted VAP, where the BSSID field in the beacon is set to the transmitted BSSID. Further, the AP reconfigures the beacon to generate a reconfigured beacon upon determining that the transmitted VAP is non-functional. In particular, the BSSID field in the reconfigured beacon is set to the non-transmitted BSSID of the MBSSID set. Moreover, the AP transmits the reconfigured beacon to the client device.Type: ApplicationFiled: May 11, 2022Publication date: November 16, 2023Inventors: Nitin A. CHANGLANI, Abhiruchi DAKSHINKAR, Qiang ZHOU, Myung Cheol KIM
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Publication number: 20230050564Abstract: Examples described herein relate to an investigator device and a method for determining a condition of an antenna of an access point (AP). At least one investigator device may receive one or more antenna condition test frames transmitted via a plurality of antennas of the AP Further, the at least one investigator device may determine an average received signal strength indicator (RSSI) value corresponding to each of the plurality of antennas based on the one or more antenna condition test frames. A condition of the plurality of antennas of the AP may be determined based on a relative comparison between the average RSSI value corresponding to each of the plurality of antennas of the AP. Moreover, in some examples, the at least one investigator device may send a notification to an administrator of the AP based on the condition of the plurality of antennas.Type: ApplicationFiled: July 29, 2021Publication date: February 16, 2023Inventors: Shubham SALONI, Myung Cheol KIM, Abhiruchi DAKSHINKAR
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Patent number: 11477817Abstract: Systems and methods are described for prioritizing channel access to uplink (UL) multi-user (MU) data capable active stations (STAs) by dynamically adapting a MU enhanced distributed channel access (EDCA) parameter set to provide for increased access to the channel by the UL MU data capable active STAs when the total number of active STAs associated to the AP less the number of active UL MU capable STAs exceeds the number of active UL MU data capable STAs; and by dynamically adapting the MU EDCA parameter set to equal a legacy EDCA parameter set to reduce collisions between the UL MU data capable STAs when the number of active UL MU data capable STAs exceeds or equals the total number of active STAs associated to the AP less the number of active UL MU data capable STAs.Type: GrantFiled: November 17, 2020Date of Patent: October 18, 2022Assignee: Hewlett Packard Enterprise Development LPInventors: Nitin A. Changlani, Qiang Zhou, Myung Cheol Kim
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Publication number: 20220244345Abstract: Systems and methods are provided for learning radio frequency pulses transmitted at various frequencies in a wireless environment, including false radar signals and actual radar. For example, the system can keep a list of radio frequency pulse characteristics detected by access points (APs) but ignored when not declared a radar. The detected radio frequency pulse can be compared with those on the list and may be added to the deny-list if not radar. The AP learns what intervals are normal for the communication environment and if the noise someday looks like a real radar (but it not actually a radar), it will not be classified as radar because it is on the deny-list.Type: ApplicationFiled: February 4, 2021Publication date: August 4, 2022Inventors: Jean-Francois Gagnon, Myung Cheol Kim, Andre Beaudin
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Publication number: 20220159713Abstract: Systems and methods are described for prioritizing channel access to uplink (UL) multi-user (MU) data capable active stations (STAs) by dynamically adapting a MU enhanced distributed channel access (EDCA) parameter set to provide for increased access to the channel by the UL MU data capable active STAs when the total number of active STAs associated to the AP less the number of active UL MU capable STAs exceeds the number of active UL MU data capable STAs; and by dynamically adapting the MU EDCA parameter set to equal a legacy EDCA parameter set to reduce collisions between the UL MU data capable STAs when the number of active UL MU data capable STAs exceeds or equals the total number of active STAs associated to the AP less the number of active UL MU data capable STAs.Type: ApplicationFiled: November 17, 2020Publication date: May 19, 2022Inventors: Nitin A. Changlani, Qiang Zhou, Myung Cheol Kim
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Publication number: 20210344438Abstract: A method for determining presence of a radar includes receiving a plurality of bursts in a dynamic frequency selection (DFS) channel of an access point, storing the plurality of bursts in a queue, in response to the queue comprising a threshold amount of bursts, determining a timespan of a first burst in the queue to a last burst in the queue, partitioning the timespan into at least a first group and a second group, determining a first number of bursts present in the first group and a second number of bursts present in the second group, in response to a difference between the first number of bursts and the second number of bursts equaling more than one, determining the radar is not present, and in response to the difference between the first number of bursts and the second number of bursts equaling one or less, determining radar is present.Type: ApplicationFiled: April 30, 2020Publication date: November 4, 2021Inventors: Jean-Francois GAGNON, Andre BEAUDIN, Myung Cheol KIM
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Publication number: 20210341570Abstract: A method for improving dynamic frequency selection (DFS) includes receiving, by an access point, a plurality of pulses in a DFS channel of the access point, determining, by the access point, a plurality of characteristics of the plurality of pulses, varying, by the access point, a threshold for radar detection, and determining, by the access point and based on at least one of the plurality of characteristics, whether the plurality of pulses are radar.Type: ApplicationFiled: April 30, 2020Publication date: November 4, 2021Inventors: Jean-Francois GAGNON, Andre BEAUDIN, Myung Cheol KIM
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Patent number: 11165530Abstract: A method for determining presence of a radar includes receiving a plurality of bursts in a dynamic frequency selection (DFS) channel of an access point, storing the plurality of bursts in a queue, in response to the queue comprising a threshold amount of bursts, determining a timespan of a first burst in the queue to a last burst in the queue, partitioning the timespan into at least a first group and a second group, determining a first number of bursts present in the first group and a second number of bursts present in the second group, in response to a difference between the first number of bursts and the second number of bursts equaling more than one, determining the radar is not present, and in response to the difference between the first number of bursts and the second number of bursts equaling one or less, determining radar is present.Type: GrantFiled: April 30, 2020Date of Patent: November 2, 2021Assignee: Hewlett Packard Enterprise Development LPInventors: Jean-Francois Gagnon, Andre Beaudin, Myung Cheol Kim
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Patent number: 8848676Abstract: An apparatus has first and second wireless communication modules with respective first and second wireless communication signaling terminals. An arbiter is coupled to receive a request for access to an antenna from one of the first and second wireless communication modules. The arbiter is operable to cause the antenna to be coupled to one of the first and second wireless communication signaling terminals in response to the request, and a coexistence module is operable to prevent the arbiter from receiving a request from the second wireless communication module to thereby allow a communication of the first wireless communication module.Type: GrantFiled: March 17, 2010Date of Patent: September 30, 2014Assignee: Marvell International Ltd.Inventors: Todd Steven Wheeler, Myung Cheol Kim, Deepak Jain, Robert Mack, Gladys Yuen Yan Wong, Jigang Chen, Ronak Anjan Chokshi