Patents by Inventor Vimal Srivastava

Vimal Srivastava 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: 12207354
    Abstract: In one illustrative example, a unified data management (UDM) of a mobile network is established in a UDM set with a plurality of private network UDMs instances of a plurality of private mobile networks. The UDM of the mobile network provides access to a plurality of subscription profiles associated with a plurality of subscribers of the mobile network, and each private network UDM instance provides access to a subset of the subscription profiles associated with a subset of the subscribers in the private mobile network. The UDM of the mobile network operates to communicate, in an authentication procedure, authentication data for authentication of a user equipment (UE) in the mobile network. After the authentication of the UE in the mobile network, the UDM operates to push authentication status information of the UE to the private network UDM instance of the private mobile network.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: January 21, 2025
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Ravi Shekhar, Vimal Srivastava
  • Publication number: 20250016646
    Abstract: The present technology involves system, methods, and computer-readable media for establishing mobility of user equipment (UEs) or mobile from congested new radio (NR) cells to un-congested Long-Term Evolution (LTE) cells. For operators that deploy both LTE cells and NR cells, the UEs can move from congested NR cells to un-congested LTE cells but can also be handed back into un-congested NR cells.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 9, 2025
    Inventors: Irfan Ali, Vimal Srivastava, Ravi Shekhar
  • Patent number: 12193109
    Abstract: A Radio Access Network (RAN) element provides an internet indication to a User Equipment (UE) to enable the UE to quickly obtain internet access. The RAN element determines that the RAN element is connected to at least one gateway that provides public internet access, and broadcasts an internet indication. The RAN element determines that the UE has requested public internet access via the RAN element and provides the UE with public internet access.
    Type: Grant
    Filed: June 13, 2023
    Date of Patent: January 7, 2025
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Vimal Srivastava, Indermeet Singh Gandhi, Sudhir Kumar Jain, Srinath Gundavelli
  • Publication number: 20250008575
    Abstract: Systems, methods, and computer-readable media are provided for optimizing utilization of available network slices, where such slices are created for specific applications/purposes. In one aspect, a method includes establishing a Protocol Data Unit (PDU) session for a mobile device on a default network slice; determining an application to be used on the mobile device; determining a specific network slice for servicing the application used on the mobile device; and configuring the mobile device to use the application on the specific network slice.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 2, 2025
    Inventors: Sri Gundavelli, Vimal Srivastava
  • Patent number: 12177663
    Abstract: Presented herein are techniques to provide selective network slice authentication and authorization in a mobile network environment. In one example, a method may include obtaining, by an access management element of a mobile network, a registration request from a user equipment, wherein the registration request identifies a plurality of network slices with which the user equipment seeks authentication; determining that if authentication for the user equipment with a first network slice is successful, authentication for the user equipment with one or more other network slices can be skipped; and upon successful authentication for the user equipment with the first network slice, skipping authentication for the user equipment with the one or more other network slices.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: December 24, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Vimal Srivastava, Sri Gundavelli, Ravi Kiran Guntupalli
  • Patent number: 12177929
    Abstract: Presented herein are techniques to provide a network-initiated group disconnect for wireless devices belonging to one or more device group(s). In one example, a method may include determining, by a control element of a network, that at least one device group is to be disconnected from the network, wherein the at least one device group comprises a plurality of wireless devices connected to the network; identifying one or more access network radios through which the plurality of wireless devices are connected to the network; and triggering a disconnect command for the at least one device group to be broadcast from each of the one or more access network radios to trigger the plurality of wireless devices to disconnect from the network.
    Type: Grant
    Filed: June 6, 2022
    Date of Patent: December 24, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Srinath Gundavelli, Vimal Srivastava, Timothy Peter Stammers, Ravi Kiran Guntupalli
  • Patent number: 12160809
    Abstract: Presented herein are techniques to facilitate user equipment (UE) to UE communications in a mobile network environment. In one example, a method may include provisioning a UE route selection policy (URSP) for each of a first UE and a second UE, wherein each URSP provisioned for each of the first UE and the second UE comprises: a first token that identifies at least one network resource that is to be utilized for a session for each of the first UE and the second UE; and a second token associated with a quality of service (QoS) that is to be provided for each session. The first token can be used to establish a session for each of the first and second UE using the same at least network resource and each session can be provided a QoS level based on the second token.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: December 3, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Ravi Shekhar, Vimal Srivastava
  • Publication number: 20240389002
    Abstract: Provided herein are techniques to facilitate service-based network function (NF) selection for roaming scenarios involving multiple home core networks. In one instance, a method may include obtaining, by a visited public land mobile network (PLMN) from a home PLMN that is to provide a first service for a wireless device, service hosting information that identifies a service hosting data network name and a service hosting PLMN that is to provide a second service for the wireless device in which the service hosting information is obtained by the visited PLMN through registration of the wireless device with the home PLMN. Upon determining that a session for the second service is to be established for the wireless device, the method may include performing a NF query to the service hosting PLMN identified from the service hosting information obtained through the registration in order to identify a NF to facilitate the session.
    Type: Application
    Filed: June 6, 2023
    Publication date: November 21, 2024
    Inventors: Ravi Shekhar, Vimal Srivastava, Irfan Ali, Ravi Kiran Guntupalli
  • Patent number: 12137409
    Abstract: A control plane (CP) function for mobility management may receive, from a user equipment (UE), a message which indicates a registration request for registration to a network slice. The CP function may select, as an allowed slice ID, a first slice ID of a first network slice in which to register the UE. The first slice ID has a slice/service type (SST) value indicating an SST and a first slice differentiator (SD) value associated with a first level of service to be provided. The CP function may alternatively select, as the allowed slice ID, a second slice ID of a second network slice in which to register the UE based on unavailability of the slice type associated with the first level of service. The second slice ID has the SST value indicating the slice type and a second SD value associated with a second level of service to be provided.
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: November 5, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Ravi Shekhar, Aditya Prakash, Amit Shivhare, Vimal Srivastava
  • Publication number: 20240365173
    Abstract: The present disclosure is directed to migrating network traffic from a licensed spectrum to an unlicensed spectrum within the same radio access technology (RAT). In one aspect, a method includes identifying a user device connected to a cellular wireless access technology, over a licensed spectrum; determining whether a condition for switching network traffic associated with the user device to an unlicensed spectrum is triggered; in response to determining that the condition is triggered, determining an unlicensed spectrum to move the network traffic to, the unlicensed spectrum being within a same cell as the licensed spectrum or in a different cell compared to a cell in which the licensed spectrum is; and migrating at least a portion of the network traffic to the unlicensed spectrum while maintaining network connectivity of the user device over the cellular wireless access technology.
    Type: Application
    Filed: July 11, 2024
    Publication date: October 31, 2024
    Inventors: Sri Gundavelli, Vimal Srivastava
  • Publication number: 20240340630
    Abstract: Provided herein are techniques to facilitate radio access network sharing for a Multi-Operator Core Network (MOCN) environment. In one instance, a method may include obtaining, by a radio node of a shared RAN, home mobile network identifiers that are associated with a home access and mobility management function (AMF) in which the home mobile network identifiers are obtained from a first transit AMF that include first priority values and from a second transit AMF that include second priority values. The method may further include obtaining a control plane communication from a user equipment (UE) including a particular home mobile network identifier, identifying the first transit AMF or the second transit AMF that is associated with a highest priority value for the particular home mobile network identifier; and transmitting the communication to the identified transit AMF that is to proxy control plane communications between the UE and the home AMF.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 10, 2024
    Inventors: Vimal Srivastava, Srinath Gundavelli
  • Publication number: 20240314560
    Abstract: Presented herein are techniques to facilitate delivering standalone non-public network (SNPN) credentials from an enterprise authentication server to a user equipment (UE) using an Extensible Authentication Protocol (EAP) process. In one example, a method may include determining, by an authentication server of an enterprise, that a UE for the enterprise is to receive credentials to enable the UE to connect to a SNPN of the enterprise in which the determining is performed based, at least in part, on connection of the UE to an access network that is different than the SNPN for the enterprise; and performing an authentication process with the UE by the authentication server in which the authentication process includes providing the credentials to the UE via a first authentication message and obtaining confirmation from the UE via a second authentication message that indicates successful provisioning of the credentials for the UE.
    Type: Application
    Filed: May 10, 2024
    Publication date: September 19, 2024
    Inventors: Srinath Gundavelli, Indermeet Singh Gandhi, Timothy Peter Stammers, Vimal Srivastava
  • Publication number: 20240306256
    Abstract: Techniques are provided for operator specific customization of a network service configuration. In some embodiments, an operator defines a mapping between an application executing on a user equipment (UE) and a network service configuration. In some embodiments, the network service configuration indicates whether the application is to be supported via a UPF instance located within the core network or deployed at a network edge. The mapping is then provided to the UE, and passed back to the core network, for example, when the UE establishes a connection on behalf of the UE application. The core network then supports the UE application consistent with the configuration specified by the mapping.
    Type: Application
    Filed: May 20, 2024
    Publication date: September 12, 2024
    Inventors: Srinath Gundavelli, Vimal Srivastava, Ravi Kiran Guntupalli
  • Publication number: 20240298234
    Abstract: Provided herein are techniques to facilitate location-specific wireless local area network (WLAN) offload restrictions for user equipment based on wireless wide area network (WWAN) radio band(s). In at least one example, a method performed by an authentication server of a WLAN may include, for a user equipment (UE) that is connected to an NR radio band of a WWAN and is seeking to connect to the WLAN, querying a subscription element of the WWAN to obtain a location indicator and an NR radio band indicator for the UE; determining, based on the location indicator and the NR radio band indicator, whether the UE is allowed or required to offload to the WLAN; and based on determining that the UE is allowed to offload from the WWAN to the WLAN, facilitating a WLAN association response message to be sent to the UE for offloading the UE to the WLAN.
    Type: Application
    Filed: September 21, 2023
    Publication date: September 5, 2024
    Inventors: Vimal Srivastava, Ravi Kiran Guntupalli, Piyush Srivastava, Amit Shivhare
  • Patent number: 12082307
    Abstract: Techniques are provided for operator specific customization of a network service configuration. In some embodiments, an operator defines a mapping between an application executing on a user equipment (UE) and a network service configuration. In some embodiments, the network service configuration indicates whether the application is to be supported via a UPF instance located within the core network or deployed at a network edge. The mapping is then provided to the UE, and passed back to the core network, for example, when the UE establishes a connection on behalf of the UE application. The core network then supports the UE application consistent with the configuration specified by the mapping.
    Type: Grant
    Filed: September 1, 2021
    Date of Patent: September 3, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Srinath Gundavelli, Vimal Srivastava, Ravi Kiran Guntupalli
  • Patent number: 12058567
    Abstract: The present disclosure is directed to migrating network traffic from a licensed spectrum to an unlicensed spectrum within the same radio access technology (RAT). In one aspect, a method includes identifying a user device connected to a cellular wireless access technology, over a licensed spectrum; determining whether a condition for switching network traffic associated with the user device to an unlicensed spectrum is triggered; in response to determining that the condition is triggered, determining an unlicensed spectrum to move the network traffic to, the unlicensed spectrum being within a same cell as the licensed spectrum or in a different cell compared to a cell in which the licensed spectrum is; and migrating at least a portion of the network traffic to the unlicensed spectrum while maintaining network connectivity of the user device over the cellular wireless access technology.
    Type: Grant
    Filed: July 5, 2022
    Date of Patent: August 6, 2024
    Assignee: Cisco Technology, Inc.
    Inventors: Sri Gundavelli, Vimal Srivastava
  • Patent number: 12015917
    Abstract: Presented herein are techniques to facilitate delivering standalone non-public network (SNPN) credentials from an enterprise authentication server to a user equipment (UE) using an Extensible Authentication Protocol (EAP) process. In one example, a method may include determining, by an authentication server of an enterprise, that a UE for the enterprise is to receive credentials to enable the UE to connect to a SNPN of the enterprise in which the determining is performed based, at least in part, on connection of the UE to an access network that is different than the SNPN for the enterprise; and performing an authentication process with the UE by the authentication server in which the authentication process includes providing the credentials to the UE via a first authentication message and obtaining confirmation from the UE via a second authentication message that indicates successful provisioning of the credentials for the UE.
    Type: Grant
    Filed: July 25, 2023
    Date of Patent: June 18, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Srinath Gundavelli, Indermeet Singh Gandhi, Timothy Peter Stammers, Vimal Srivastava
  • Publication number: 20240196189
    Abstract: Disclosed herein are systems, methods, and computer-readable media for causing an user equipment (UE) to connect to a non-public network (NPN) while meeting time and location requirements. In one aspect, a method includes receiving, by the UE and from a home public land mobile network (h-PLMN), a steering of roaming update providing a steering of roaming record. In one aspect, the UE, is configured based on the steering of roaming record, to connect to the non-public network (NPN) when a context of the UE meets time and location requirements. In one aspect, the method includes establishing, by the UE, a session with the NPN when the context of the UE meets the time and location requirements.
    Type: Application
    Filed: December 8, 2022
    Publication date: June 13, 2024
    Inventors: Sri Gundavelli, Vimal Srivastava, Irfan Ali
  • Publication number: 20240196267
    Abstract: The present technology is generally directed to dynamically adding network resources based on an application function (AF) notification. The present technology can determine, by an AF of a service provider, a network congestion on a network, the network congestion indicating that network resources for servicing a user device using services of the service provider do not meet corresponding Quality of Service (QOS) requirements. Further, the present technology can transmit a notification by the AF to a core network of a network provider to request additional network resources to be allocated for servicing the user device, the network provider providing network connectivity for the user device to receive the services provided by the service provider.
    Type: Application
    Filed: February 21, 2024
    Publication date: June 13, 2024
    Inventors: Humberto Jose La Roche, Vimal Srivastava, Sri Gundavelli, Timothy P. Stammers
  • Patent number: 12010758
    Abstract: A network function selectively supports a mobile device with network settings appropriate for the device context of the mobile device. The network function obtains a device profile for the mobile device, which identifies multiple device groups, with each device group being associated with a corresponding set of network settings. The network function selects a device group among the device groups in the device profile based on a device context of the mobile device. Responsive to a notification of the mobile device in a different device context, the network function supports the mobile device with a different set of network settings that cause a Session Management Function (SMF) to reconfigure the user plane for the mobile device.
    Type: Grant
    Filed: May 18, 2023
    Date of Patent: June 11, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Aditya Prakash, Ravi Shekhar, Vimal Srivastava