Patents by Inventor Sandra R. Thuel

Sandra R. Thuel 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: 11363481
    Abstract: The disclosed technology teaches dispersion analysis of individual UE devices, measuring the span of cellular locations in a 5G network over which the bulk of a user's data, voice minutes and text messaging usage take place. Dispersion analysis also measures the span of cellular locations over which the bulk of a user's transactions and failed transactions take place, providing insights into camping behavior on specific cellular locations and hot spot formation. The technology disclosed includes new collection and filtering of location data to pinpoint cellular communication challenges encountered by users as well as system improvement and remediation opportunities. Additionally, this technology enables reporting of the detected behavior and related hot spots formation analysis with identifiers of UE mobile devices involved. The technology also applies to 3G 4G and future mobile networks and can be utilized for a group of UE devices selected for analysis, by device, geography, or affinity.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: June 14, 2022
    Assignee: Spirent Communications, Inc.
    Inventors: Peretz M. Feder, Sandra R. Thuel, Meenal Agarwal
  • Patent number: 11310731
    Abstract: The disclosed technology takes into account mobility behavior and interactions with a serving cellular network of a UE mobile device, when determining network interaction parameters for the UE, including providing an identifier of the UE to a NWDAF component that subscribes to receive notices that report changed or changing events, including a change in connectivity to any cell for any UE and any service usage on the cell and performs a dispersion analysis by analyzing the incoming notices to determine multiple dispersion indices as the UE mobile device changes its selection of a base station or a cell or a slice. Also included are network elements receiving the dispersion analysis for the UE mobile device and performing a policy update and/or a radio access network (RAN) decision for the UE mobile device based on at least the dispersion analysis. The technology also applies to 3G, 4G and future mobile networks.
    Type: Grant
    Filed: November 19, 2020
    Date of Patent: April 19, 2022
    Assignee: Spirent Communications, Inc.
    Inventors: Peretz M. Feder, Sandra R. Thuel, Meenal Agarwal
  • Patent number: 11277777
    Abstract: The disclosed technology teaches detecting abnormal behavior of a UE mobile device, including a network data analytics function component, in communication with core network components of a cellular network, subscribing to location change-related events that report a change event for a UE device connection to and/or drop or handover from a cell. Included is analyzing location change-related events to detect abnormal handover behavior when the UE device changes its selection of a base station or cell more than N times in not more than M minutes, and reporting the detected abnormal handover behavior with an identifier of the UE mobile device involved and the involved cell's ID. The technology also applies to a group of UE devices selected for analysis, by device, geography or custom-defined affinity, with selection changes among a set of base stations or neighboring cells, each selected at least twice by the UE device in M minutes.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: March 15, 2022
    Assignee: Spirent Communications, Inc.
    Inventors: Peretz M. Feder, Sandra R. Thuel
  • Publication number: 20200396657
    Abstract: The disclosed technology teaches detecting abnormal behavior of a UE mobile device, including a network data analytics function component, in communication with core network components of a cellular network, subscribing to location change-related events that report a change event for a UE device connection to and/or drop or handover from a cell. Included is analyzing location change-related events to detect abnormal handover behavior when the UE device changes its selection of a base station or cell more than N times in not more than M minutes, and reporting the detected abnormal handover behavior with an identifier of the UE mobile device involved and the involved cell's ID. The technology also applies to a group of UE devices selected for analysis, by device, geography or custom-defined affinity, with selection changes among a set of base stations or neighboring cells, each selected at least twice by the UE device in M minutes.
    Type: Application
    Filed: June 10, 2020
    Publication date: December 17, 2020
    Applicant: Spirent Communications, Inc.
    Inventors: Peretz M. FEDER, Sandra R. THUEL
  • Patent number: 7554967
    Abstract: Portable and/or mobile IP hosts desiring to connect to the Internet can dynamically acquire a home address and other configuration information through DHCP when powering up in a foreign network. A two-stage configuration procedure is used. First, the mobile host uses the M-IP protocol to establish contact with an addressing element, referred to as a bootstrapping agent, that is usually co-located with a M-IP Home Agent, and that allocates a temporary home address for the mobile host. The temporary address is used to create a temporary tunnel. Second, this temporary tunnel is used as the communication vehicle over which standard DHCP transactions take place. The present invention is thus arranged to use a) M-IP as the signaling mechanism for reaching the home network and dynamically allocating a temporary home address for the mobile host; and b) DHCP to allocate a permanent home address and any other configuration state for the mobile host.
    Type: Grant
    Filed: September 15, 2000
    Date of Patent: June 30, 2009
    Assignee: Alcatel-Lucent USA Inc.
    Inventors: Kannan Varadhan, Thomas F La Porta, Ramachandran Ramjee, Luca Salgarelli, Sandra R Thuel
  • Patent number: 7257409
    Abstract: A base station controller (BSC) of a radio or wireless telecommunications network base station includes a director. A BSC includes multiple central processing units (CPUs), with each CPU running a call-processing application for one or more connections. The director is a logical entity that intercepts wireless call-setup signaling and assigns each corresponding connection to a CPU according to a centralized load-balancing algorithm. The centralized load-balancing algorithm distributes connections to less loaded CPUs to i) prevent individual CPUs from overloading, ii) utilize otherwise unused system resources, and iii) increase overall system performance. The director hosts cell components that manage code division multiple access (CDMA) downlink spreading codes for a base station, providing centralized allocation of spreading codes by the base station.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: August 14, 2007
    Assignee: Lucent Technologies Inc.
    Inventors: Mun-Choon Chan, Martin Havemann, Ramachandran Ramjee, Sandra R. Thuel, Thomas Y. Woo
  • Patent number: 7239618
    Abstract: Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Packets sent from the correspondent node to the mobile device have a packet destination address corresponding to the mobile device. The mobile device retains this address for the duration of time it is powered up and attached to the Internet via any base station within a given domain. Host-based routing is utilized to update routing table entries corresponding to the mobile device at routers incorporated within a single domain.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: July 3, 2007
    Assignee: Lucent Technologies Inc.
    Inventors: Thomas F. La Porta, Kazutaka Murakami, Ramachandran Ramjee, Sandra R. Thuel, Kannan Varadhan
  • Patent number: 6763007
    Abstract: Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Packets sent from the correspondent node to the mobile device have a packet destination address corresponding to the mobile device. The mobile device retains this address for the duration of time it is powered up and attached to the Internet via any base station within a given domain. Host-based routing is utilized to update routing table entries corresponding to the mobile device at routers incorporated within a single domain.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: July 13, 2004
    Assignee: Lucent Technologies Inc.
    Inventors: Thomas F. La Porta, Kazutaka Murakami, Ramachandran Ramjee, Sandra R. Thuel, Kannan Varadhan
  • Patent number: 6654359
    Abstract: Domains are defined to incorporate a subnet including a plurality of base stations and routers. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Local mobility between domain base stations is provided by including and updating routing table entries at domain routers and base stations for forwarding packets having a mobile device's address as a destination address to the mobile device. Packets are delivered to the mobile device regardless of the domain base station to which the mobile device is attached. When a mobile device is attached to a base station included within a foreign domain, a care-of address is assigned, and packets are tunneled for delivery of packets to the mobile device. Only one care-of address is required per mobile device per foreign domain.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: November 25, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Thomas F. La Porta, Kazutaka Murakami, Ramachandran Ramjee, Sandra R. Thuel, Kannan Varadhan