Patents by Inventor Krishna Sayana

Krishna Sayana 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).

  • Publication number: 20240127055
    Abstract: A method for detecting network anomalies includes receiving a control message from a cellular network and extracting one or more features from the control message. The method also includes predicting a potential label for the control message using a predictive model configured to receive the one or more extracted features from the control message as feature inputs. Here, the predictive model is trained on a set of training control messages where each training control message includes one or more corresponding features and an actual label. The method further includes determining that a probability of the potential label satisfies a confidence threshold. The method also includes analyzing the control message to determine whether the control message corresponds to a respective network performance issue. When the control message impacts network performance, the method includes communicating the network performance issue to a network entity responsible for the network performance issue.
    Type: Application
    Filed: December 28, 2023
    Publication date: April 18, 2024
    Applicant: GOOGLE LLC
    Inventors: James PEROULAS, Poojita THUKRAL, Dutt KALAPATAPU, Andreas TERZIS, Krishna SAYANA
  • Patent number: 11861453
    Abstract: A method for detecting network anomalies includes receiving a control message from a cellular network and extracting one or more features from the control message. The method also includes predicting a potential label for the control message using a predictive model configured to receive the one or more extracted features from the control message as feature inputs. Here, the predictive model is trained on a set of training control messages where each training control message includes one or more corresponding features and an actual label. The method further includes determining that a probability of the potential label satisfies a confidence threshold. The method also includes analyzing the control message to determine whether the control message corresponds to a respective network performance issue. When the control message impacts network performance, the method includes communicating the network performance issue to a network entity responsible for the network performance issue.
    Type: Grant
    Filed: November 2, 2022
    Date of Patent: January 2, 2024
    Assignee: GOOGLE LLC
    Inventors: James Peroulas, Poojita Thukral, Dutt Kalapatapu, Andreas Terzis, Krishna Sayana
  • Patent number: 11653240
    Abstract: A method and apparatus report channel state information (CSI) feedback of a user equipment (UE) in a coordinated multipoint communication system. The method includes identifying, when downlink transmissions to the UE are configured with at least two CSI subframe subsets, an interference measurement resource within one of the CSI subframe subsets belonging to a CSI reference resource. The method also includes using the identified interference measurement resource to derive an interference measurement. The apparatus includes a controller configured to, when downlink transmissions to the UE are configured with at least two CSI subframe subsets, identify an interference measurement resource within one of the CSI subframe subsets belonging to a CSI reference resource. The controller is configured to use the identified interference measurement resource to derive an interference measurement.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: May 16, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Krishna Sayana, Young-Han Nam, Jin-Kyu Han, Boon Loong Ng
  • Publication number: 20230054625
    Abstract: A method for detecting network anomalies includes receiving a control message from a cellular network and extracting one or more features from the control message. The method also includes predicting a potential label for the control message using a predictive model configured to receive the one or more extracted features from the control message as feature inputs. Here, the predictive model is trained on a set of training control messages where each training control message includes one or more corresponding features and an actual label. The method further includes determining that a probability of the potential label satisfies a confidence threshold. The method also includes analyzing the control message to determine whether the control message corresponds to a respective network performance issue. When the control message impacts network performance, the method includes communicating the network performance issue to a network entity responsible for the network performance issue.
    Type: Application
    Filed: November 2, 2022
    Publication date: February 23, 2023
    Applicant: GOOGLE LLC
    Inventors: James PEROULAS, Poojita THUKRAL, Dutt KALAPATAPU, Andreas TERZIS, Krishna SAYANA
  • Patent number: 11546787
    Abstract: A method and apparatus report channel state information (CSI) feedback of a user equipment (UE) in a coordinated multipoint communication system. The method includes identifying, when downlink transmissions to the UE are configured with at least two CSI subframe subsets, an interference measurement resource within one of the CSI subframe subsets belonging to a CSI reference resource. The method also includes using the identified interference measurement resource to derive an interference measurement. The apparatus includes a controller configured to, when downlink transmissions to the UE are configured with at least two CSI subframe subsets, identify an interference measurement resource within one of the CSI subframe subsets belonging to a CSI reference resource. The controller is configured to use the identified interference measurement resource to derive an interference measurement.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: January 3, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Krishna Sayana, Young-Han Nam, Jin-Kyu Han, Boon Loong Ng
  • Patent number: 11507837
    Abstract: A method for detecting network anomalies includes receiving a control message from a cellular network and extracting one or more features from the control message. The method also includes predicting a potential label for the control message using a predictive model configured to receive the one or more extracted features from the control message as feature inputs. Here, the predictive model is trained on a set of training control messages where each training control message includes one or more corresponding features and an actual label. The method further includes determining that a probability of the potential label satisfies a confidence threshold. The method also includes analyzing the control message to determine whether the control message corresponds to a respective network performance issue. When the control message impacts network performance, the method includes communicating the network performance issue to a network entity responsible for the network performance issue.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: November 22, 2022
    Assignee: Google LLC
    Inventors: James Peroulas, Poojita Thukral, Dutt Kalapatapu, Andreas Terzis, Krishna Sayana
  • Patent number: 11323984
    Abstract: A User Equipment (UE) in a wireless communication system using a Coordinated Multi-Point transmission/reception (CoMP) scheme receives Downlink Control Information (DCI) including CoMP control information, determines a starting position of a data channel on wireless resources, based on starting position information of a data channel included in the CoMP control information and used in each of a plurality of cells, and receives data from the plurality of cells starting from the determined starting position.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: May 3, 2022
    Inventors: Youn-Sun Kim, Hyoung-Ju Ji, Hyo-Jin Lee, Yong-Jun Kwak, Young-Bum Kim, Ju-Ho Lee, Joon-Young Cho, Seung-Hoon Choi, Cheng Shan, Krishna Sayana
  • Patent number: 11196460
    Abstract: A subscriber station configured to communicate with one or more base stations or other transmission points (TPs) in a wireless communication network is configured to receive, from the network, information associated with one or more of the TPs that are candidates for coordinated multipoint (CoMP) transmission with the subscriber station, to measure a plurality of channel quality values for each of the one or more TPs, and to report the measured channel quality values to the network.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: December 7, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Boon Loong Ng, Gerardus Johannes Petrus van Lieshout, Young-Han Nam, Himke van der Velde, Jianzhong Zhang, Ying Li, Younsun Kim, Krishna Sayana
  • Patent number: 11139862
    Abstract: A method and an apparatus indicate and identify a ZP-CSI-RS configuration. The method for identifying includes identifying a DCI format and the ZP-CSI-RS configuration in response to receiving one or more control messages where a first set of ZP-CSI-RS configuration or configurations are configured to be used for DCI Format 1A and a second set of ZP-CSI-RS configuration or configurations are configured to be used for DCI Format 2D or 2C. The method also includes identifying a PDSCH rate matching based on the identified ZP-CSI-RS configuration. The method for indicating includes transmitting a dynamic signaling control message comprising an indication of a DCI format. The method also includes transmitting transmit a higher layer signaling control message comprising an indication of the ZP-CSI-RS configuration or configurations.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: October 5, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Krishna Sayana, Boon Loong Ng, Young-Han Nam, Himke van der Velde, Gerardus Johannes Petrus van Lieshout
  • Patent number: 11121834
    Abstract: Coordinate multi-point (CoMP) transmission is facilitated by resolving collisions between feedback reporting. Based upon the conditions within the network, collision resolution may be by dropping a channel report during a subframe, multiplexing channel reports from a plurality of user equipment, compressing channel reports a plurality of user equipment, and combined reporting, either through joint reports or by using carrier aggregation, for conditions between a user equipment and a plurality of transmission points. New signaling and reporting formats facilitate selection of a collision resolution suitable for current network conditions.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: September 14, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Krishna Sayana, Boon Loong Ng, Young-Han Nam, Thomas Novlan, Jinkyu Han, Jianzhong Zhang, Hyojin Lee, Youn-Sun Kim
  • Patent number: 11075738
    Abstract: Arrangements disclosed here provide an LTE E-RAN employing a hierarchical architecture with a central controller controlling multiple LTE radio nodes (RNs). The RNs may be clustered within the small cell network. A fractional frequency reuse (“FFR”) scheme is provided that dynamically computes the FFR allocations at individual RNs and configures the corresponding schedulers within each RN to improve cell-edge users' experience. Once an FFR pattern has been generated and frequencies allocated, UE throughput can be emulated to predict the resulting bit rates for each UE. Using the prediction, a scheduler emulation may be run to predict the behavior of the system. The results of each cell may then be collected to generate the performance of the entire system, which may in turn be used to generate a new or modified FFR pattern, or new or modified clustering. Optimization of the performance results in an optimized FFR pattern.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: July 27, 2021
    Assignee: Corning Optical Communications LLC
    Inventors: Han-Ting Chiang, Brian Dunn, Hithesh Nama, Krishna Sayana, Peter J. Worters
  • Publication number: 20210133574
    Abstract: A method for detecting network anomalies includes receiving a control message from a cellular network and extracting one or more features from the control message. The method also includes predicting a potential label for the control message using a predictive model configured to receive the one or more extracted features from the control message as feature inputs. Here, the predictive model is trained on a set of training control messages where each training control message includes one or more corresponding features and an actual label. The method further includes determining that a probability of the potential label satisfies a confidence threshold. The method also includes analyzing the control message to determine whether the control message corresponds to a respective network performance issue. When the control message impacts network performance, the method includes communicating the network performance issue to a network entity responsible for the network performance issue.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Applicant: Google LLC
    Inventors: James Peroulas, Poojita Thukral, Dutt Kalapatapu, Andreas Terzis, Krishna Sayana
  • Patent number: 10965412
    Abstract: Coordinate multi-point (CoMP) transmission is facilitated by resolving collisions between feedback reporting. Based upon the conditions within the network, collision resolution may be by dropping a channel report during a subframe, multiplexing channel reports from a plurality of user equipment, compressing channel reports from a plurality of user equipment, and combined reporting, either through joint reports or by using carrier aggregation, for conditions between a user equipment and a plurality of transmission points. New signaling and reporting formats facilitate selection of a collision resolution suitable for current network conditions.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: March 30, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Krishna Sayana, Boon Loong Ng, Young-Han Nam, Thomas David Novlan, Jinkyu Han, Jianzhong Zhang, Hyojin Lee, Youn-Sun Kim
  • Patent number: 10891546
    Abstract: A method for detecting network anomalies includes receiving a control message from a cellular network and extracting one or more features from the control message. The method also includes predicting a potential label for the control message using a predictive model configured to receive the one or more extracted features from the control message as feature inputs. Here, the predictive model is trained on a set of training control messages where each training control message includes one or more corresponding features and an actual label. The method further includes determining that a probability of the potential label satisfies a confidence threshold. The method also includes analyzing the control message to determine whether the control message corresponds to a respective network performance issue. When the control message impacts network performance, the method includes communicating the network performance issue to a network entity responsible for the network performance issue.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: January 12, 2021
    Assignee: Google LLC
    Inventors: James Peroulas, Poojita Thukral, Dutt Kalapatapu, Andreas Terzis, Krishna Sayana
  • Publication number: 20200359250
    Abstract: A method and apparatus report channel state information (CSI) feedback of a user equipment (UE) in a coordinated multipoint communication system. The method includes identifying, when downlink transmissions to the UE are configured with at least two CSI subframe subsets, an interference measurement resource within one of the CSI subframe subsets belonging to a CSI reference resource. The method also includes using the identified interference measurement resource to derive an interference measurement. The apparatus includes a controller configured to, when downlink transmissions to the UE are configured with at least two CSI subframe subsets, identify an interference measurement resource within one of the CSI subframe subsets belonging to a CSI reference resource. The controller is configured to use the identified interference measurement resource to derive an interference measurement.
    Type: Application
    Filed: July 24, 2020
    Publication date: November 12, 2020
    Inventors: Krishna Sayana, Young-Han Nam, Jin-Kyu Han, Boon Loong Ng
  • Publication number: 20200342311
    Abstract: A method for detecting network anomalies includes receiving a control message from a cellular network and extracting one or more features from the control message. The method also includes predicting a potential label for the control message using a predictive model configured to receive the one or more extracted features from the control message as feature inputs. Here, the predictive model is trained on a set of training control messages where each training control message includes one or more corresponding features and an actual label. The method further includes determining that a probability of the potential label satisfies a confidence threshold. The method also includes analyzing the control message to determine whether the control message corresponds to a respective network performance issue. When the control message impacts network performance, the method includes communicating the network performance issue to a network entity responsible for the network performance issue.
    Type: Application
    Filed: April 29, 2019
    Publication date: October 29, 2020
    Applicant: Google LLC
    Inventors: James Peroulas, Poojita Thukral, Dutt Kalapatapu, Andreas Terzis, Krishna Sayana
  • Patent number: 10750434
    Abstract: Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 18, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Boon Loong Ng, Krishna Sayana, Young-Han Nam, Jianzhong Zhang
  • Patent number: 10708852
    Abstract: Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port.
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: July 7, 2020
    Inventors: Boon Loong Ng, Krishna Sayana, Young-Han Nam, Jianzhong Zhang
  • Publication number: 20200053633
    Abstract: Methods and apparatuses indicate and identify quasi co-located reference signal ports. A method of identifying by a UE includes identifying, from downlink control information, a CSI-RS port that is quasi co-located with a DM-RS port assigned to the UE. The method includes identifying large scale properties for the assigned DM-RS port based on large scale properties for the CSI-RS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the DM-RS port. Another method for identifying by a UE includes identifying, from downlink control information, a CRS port that is quasi co-located with a CSI-RS port configured for the UE. The method includes identifying large scale properties for the configured CSI-RS port based on large scale properties for the CRS port. The method includes performing channel estimation and/or time/frequency synchronization using the identified large scale properties for the CSI-RS port.
    Type: Application
    Filed: October 17, 2019
    Publication date: February 13, 2020
    Inventors: Boon Loong Ng, Krishna Sayana, Young-Han Nam, Jianzhong Zhang
  • Patent number: RE49548
    Abstract: Methods and apparatuses schedule resources and identify resource scheduling in a MU MIMO wireless communication system. A method for identifying resource scheduling for a UE includes receiving downlink control information; identifying, from the downlink control information, one or more DM-RS ports assigned to the UE and a PDSCH EPRE to DM-RS EPRE ratio; and identifying data intended for the UE in a resource block in a downlink subframe using the one or more DM-RS ports and the PDSCH EPRE to DM-RS EPRE ratio. A method for scheduling resources includes identifying one or more DM-RS ports to assign to a UE and a PDSCH EPRE to DM-RS EPRE ratio for identifying data intended for the UE in a resource block in a downlink subframe; and including an indication of the one or more DM-RS ports and the PDSCH EPRE to DM-RS EPRE ratio in downlink control information.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: June 6, 2023
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Boon Loong Ng, Krishna Sayana, Jianzhong Zhang, Young-Han Nam