Patents by Inventor Ravi Kiran Guntupalli

Ravi Kiran Guntupalli 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: 11950128
    Abstract: A control plane (CP) function for session management performs a procedure for establishing local traffic offloading for a user equipment (UE) in a mobile network having an Evolved Packet Core (EPC) and Fifth Generation (5G) converged core that supports communications via a Long-Term Evolution (LTE) radio access network (RAN) and a Fifth Generation (5G) RAN. Initially, a connection is established for the UE via the LTE RAN that includes a first bearer between the LTE RAN and a central serving gateway-user plane (SGW-U) at a central location, and a second bearer between the central SGW-U and a central packet gateway-user plane (PGW-U) at the central location. The CP function inserts a local SGW-U at an edge location and subsequently inserts a local intermediate user plane function (I-UPF) with an uplink classifier (UL-CL) at the edge location for enabling edge offload of traffic from the LTE RAN.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: April 2, 2024
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Irfan Ali, Ravi Kiran Guntupalli
  • Publication number: 20240107307
    Abstract: Disclosed herein are systems, methods, and computer-readable media for authentication in a multi-cloud cellular service. In one aspect, a method includes receiving, at a controller of a local site within the multi-cloud cellular service, a network connection request from a device, the cloud-based authentication component being a central network component configured to store device credentials and network policies for authenticating devices connecting to the multi-cloud cellular service across all sites associated with the multi-cloud cellular service. In one aspect, the method also includes locally authenticating, by the controller, the device using stored credential information obtained from the cloud-based authentication component prior to losing the connectivity to the cloud-based authentication component.
    Type: Application
    Filed: September 22, 2022
    Publication date: March 28, 2024
    Inventors: Sri Gundavelli, Timothy P. Stammers, Ravi Kiran Guntupalli, Vimal Srivastava
  • Publication number: 20240080792
    Abstract: The present disclosure is directed to systems and techniques for providing service continuity for User Equipment (UE) services associated with certain network slices. In one example, the systems and techniques can receive a registration request from a UE, wherein the registration request includes a requested slice, and determine a current network location of the UE. In response to determining that the current network location of the UE does not support the requested slice, one or more additional network locations that support the requested slice can be identified. Location information associated with the one or more additional network locations can be identified and a registration response message can be transmitted to the UE, wherein the registration response message includes location information of an one or more additional Tracking Area Identities (TAIs) or additional Registration Areas (RAs) that support the requested slice.
    Type: Application
    Filed: September 1, 2022
    Publication date: March 7, 2024
    Inventors: Vimal Srivastava, Sri Gundavelli, Ravi Kiran Guntupalli
  • Publication number: 20240049106
    Abstract: Disclosed are a system and method for updating a user equipment route selection policy. The method includes receiving, at a home network in communication with a user equipment, an indication that a user of the user equipment desires to connect to a standalone non-public network for an event, receiving service hosting information for the event, revising a user equipment route selection policy at the home network based on the service hosting information to yield an updated user equipment route selection policy and transmitting the updated user equipment route selection policy to the user equipment. The user equipment registers, based on the updated user equipment route selection policy, with the standalone non-public network for the event.
    Type: Application
    Filed: August 11, 2022
    Publication date: February 8, 2024
    Inventors: Sri Gundavelli, Vimal Srivastava, Ravi Kiran Guntupalli
  • Publication number: 20230397296
    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: Application
    Filed: June 6, 2022
    Publication date: December 7, 2023
    Inventors: Srinath Gundavelli, Vimal Srivastava, Timothy Peter Stammers, Ravi Kiran Guntupalli
  • Publication number: 20230388792
    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: Application
    Filed: May 24, 2022
    Publication date: November 30, 2023
    Inventors: Vimal Srivastava, Sri Gundavelli, Ravi Kiran Guntupalli
  • Publication number: 20230308852
    Abstract: Techniques and mechanisms for use in facilitating home network assisted concurrent access to network slices in multiple visited public land mobile networks (VPLMNs) are described. A control plane (CP) function for mobility management may receive, from a UE (e.g., configured without dual connectivity), a message which indicates a registration request for registration using a first network slice and a second network slice. The CP function may manage registration for the UE in response to the registration request. The CP function may receive, from the UE, a message which indicates a request for establishing a protocol data unit (PDU) session using the second network slice which is not supported or available in the first VPLMN. The CP function may forward the request for establishing the PDU session to an application function (AF) for managing establishment of the PDU session for the UE using the second network slice in a second VPLMN.
    Type: Application
    Filed: March 28, 2022
    Publication date: September 28, 2023
    Inventors: Vimal Srivastava, Sri Gundavelli, Ravi Kiran Guntupalli
  • Patent number: 11743230
    Abstract: A method enables communication between Session Management Function (SMF) and User Plane Function (UPF) instances which are separately deployed behind Network Address Translation (NAT) services. The method includes configuring an SMF or a UPF to initiate an association with a corresponding UPF or SMF. The SMF registers first information with a Network Repository Function (NRF) enabling the remote UPF to communicate with the SMF through a NAT service. The method further includes obtaining second information from the NRF enabling the SMF to communicate with the remote UPF through the NAT service. The method also includes sending an association request to the remote UPF based on the second information and receiving an association response from the remote UPF through the NAT service.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: August 29, 2023
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Aeneas Sean Dodd-Noble, Irfan Ali, Ravi Kiran Guntupalli, Ravi Shekhar
  • Publication number: 20230114175
    Abstract: A system is provided for supporting roaming between LTE EPC network and 5G network of a first mobile network operator by 5GC network of a second network operator. The system may include the EPC network including a serving gateway in communication with a 4G base station being in the EPC network. The system may also include the 5G network of the first mobile network operator including a vSMF in communication with a 5G base station being in the 5G network of the first network operator. The system may also include the 5GC network of the second network operator including a hSMF. The vSMF is configured to receive a communication from the serving gateway to anchor mobility between the LTE EPC network and the 5G network of the first mobile network operator, and to communicate with the hSMF in the 5GC network of the second network operator using 5G roaming interfaces.
    Type: Application
    Filed: June 22, 2022
    Publication date: April 13, 2023
    Inventors: Irfan Ali, Ravi Shankar Mantha, Ravi Kiran Guntupalli, Jis Abraham
  • Publication number: 20230102552
    Abstract: A control plane (CP) function for session management performs a procedure for establishing local traffic offloading for a user equipment (UE) in a mobile network having an Evolved Packet Core (EPC) and Fifth Generation (5G) converged core that supports communications via a Long-Term Evolution (LTE) radio access network (RAN) and a Fifth Generation (5G) RAN. Initially, a connection is established for the UE via the LTE RAN, where the connection includes a first bearer between the LTE RAN and a central serving gateway-user plane (SGW-U) at a central location, and a second bearer between the central SGW-U and a central packet gateway-user plane (PGW-U) at the central location. The CP function inserts a local SGW-U at an edge location and subsequently inserts a local intermediate user plane function (I-UPF) with an uplink classifier (UL-CL) at the edge location for enabling edge offload of traffic from the LTE RAN.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Inventors: Irfan Ali, Ravi Kiran Guntupalli
  • Publication number: 20230063570
    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: September 1, 2021
    Publication date: March 2, 2023
    Inventors: Srinath Gundavelli, Vimal Srivastava, Ravi Kiran Guntupalli
  • Publication number: 20230017423
    Abstract: Disclosed are embodiments that leverage a central control plane of a managed 5G network service architecture across multiple serviced tenants by deploying tenant specific user plane function (UPF) and gNB components within tenant managed compute infrastructure. To enable this architecture, the disclosed embodiments assign gNBs and UPF instances to specific tenants and communicate those assignments to core components. Policies can be defined and applied to specific tenants from the central control plane. Inbound data routing to a specific tenant is accomplished by referencing a data store in the control plane that identifies which gNBs are assigned to a tenant associated with the incoming data. Those gNBs are then paged to service the incoming data.
    Type: Application
    Filed: July 14, 2021
    Publication date: January 19, 2023
    Inventors: Ravi Kiran Guntupalli, Srinath Gundavelli, Abhishek Dhammawat
  • Publication number: 20220263792
    Abstract: A method enables communication between Session Management Function (SMF) and User Plane Function (UPF) instances which are separately deployed behind Network Address Translation (NAT) services. The method includes configuring an SMF or a UPF to initiate an association with a corresponding UPF or SMF. The SMF registers first information with a Network Repository Function (NRF) enabling the remote UPF to communicate with the SMF through a NAT service. The method further includes obtaining second information from the NRF enabling the SMF to communicate with the remote UPF through the NAT service. The method also includes sending an association request to the remote UPF based on the second information and receiving an association response from the remote UPF through the NAT service.
    Type: Application
    Filed: April 29, 2022
    Publication date: August 18, 2022
    Inventors: Aeneas Sean Dodd-Noble, Irfan Ali, Ravi Kiran Guntupalli, Ravi Shekhar
  • Patent number: 11374900
    Abstract: A method enables communication between Session Management Function (SMF) and User Plane Function (UPF) instances which are separately deployed behind Network Address Translation (NAT) services. The method includes configuring an SMF or a UPF to initiate an association with a corresponding UPF or SMF. The SMF registers first information with a Network Repository Function (NRF) enabling the remote UPF to communicate with the SMF through a NAT service. The method further includes obtaining second information from the NRF enabling the SMF to communicate with the remote UPF through the NAT service. The method also includes sending an association request to the remote UPF based on the second information and receiving an association response from the remote UPF through the NAT service.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: June 28, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Aeneas Sean Dodd-Noble, Irfan Ali, Ravi Kiran Guntupalli, Ravi Shekhar
  • Publication number: 20220131830
    Abstract: A method enables communication between Session Management Function (SMF) and User Plane Function (UPF) instances which are separately deployed behind Network Address Translation (NAT) services. The method includes configuring an SMF or a UPF to initiate an association with a corresponding UPF or SMF. The SMF registers first information with a Network Repository Function (NRF) enabling the remote UPF to communicate with the SMF through a NAT service. The method further includes obtaining second information from the NRF enabling the SMF to communicate with the remote UPF through the NAT service. The method also includes sending an association request to the remote UPF based on the second information and receiving an association response from the remote UPF through the NAT service.
    Type: Application
    Filed: October 26, 2020
    Publication date: April 28, 2022
    Inventors: Aeneas Sean Dodd-Noble, Irfan Ali, Ravi Kiran Guntupalli, Ravi Shekhar
  • Patent number: 11246088
    Abstract: A network slice controller obtains health information of an active network slice provided by a first vendor and health information of a set of backup network slices provided by a second vendor. The network slice controller evaluates, using a set of policies corresponding to management of the active network slice, the health information of the active network slice to determine whether the active network slice has failed. As a result of the failure of the active network slice, the network slice controller identifies one or more backup network slices of the set of backup network slices to serve as new active network slices. The network slice controller activates these one or more backup network slices to serve as the new active network slices for the network.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: February 8, 2022
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Vimal Srivastava, Sri Gundavelli, Aeneas Sean Dodd-Noble, Irfan Ali, Ravi Kiran Guntupalli, Ian McDowell Campbell
  • Patent number: 11202221
    Abstract: A control plane (CP) entity is to adaptively reroute user plane traffic of a mobile node (MN) with use of a segment routing (SR) for IPv6. A message indicating an attachment of the MN to the mobile network is received selecting a first user plane (UP) anchor node. A first set of home network prefixes (HNPs) are allocated to the MN. An IP traffic flow using a first HNP prefix is established between the MN and a correspondent node (CN) along a first network path—defined at least in part by the first UP anchor node and an anchor node of the CN. In response to a handover of the MN, a message indicating a subsequent attachment of the MN is received selecting a second UP anchor node. The second UP anchor node is instructed to host the first HNP prefix previously allocated by the first UP anchor node.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: December 14, 2021
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Srinath Gundavelli, Ravi Kiran Guntupalli, Aeneas Sean Dodd-Noble, Kirk McBean
  • Publication number: 20210321325
    Abstract: A network slice controller obtains health information of an active network slice provided by a first vendor and health information of a set of backup network slices provided by a second vendor. The network slice controller evaluates, using a set of policies corresponding to management of the active network slice, the health information of the active network slice to determine whether the active network slice has failed. As a result of the failure of the active network slice, the network slice controller identifies one or more backup network slices of the set of backup network slices to serve as new active network slices. The network slice controller activates these one or more backup network slices to serve as the new active network slices for the network.
    Type: Application
    Filed: April 10, 2020
    Publication date: October 14, 2021
    Inventors: Vimal Srivastava, Sri Gundavelli, Aeneas Sean Dodd-Noble, Irfan Ali, Ravi Kiran Guntupalli, Ian McDowell Campbell
  • Patent number: 10924518
    Abstract: Various implementations disclosed herein enable programming user plane gateway controllers over enhanced N9 interfaces. In various implementations, a method of gateway controlling is performed by a computing device including one or more processors, and a non-transitory memory. In various implementations the method includes determining, by a first packet gateway controller connected to a first session manager device, that a user equipment moved to a geographical area that is served by a second session manager device. In some implementations, the method includes receiving, by the first packet gateway device, a set of information for a second packet gateway device. In some implementations, the method includes transmitting, by the first packet gateway device, a session establishment request via a first network interface to the second packet gateway controller using segment routing via a second network interface.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: February 16, 2021
    Assignee: Cisco Technology, Inc.
    Inventors: Aeneas Sean Dodd-Noble, Irfan Ali, Pablo Camarillo Garvia, Om Prakash Suthar, Ravi Kiran Guntupalli, Arun C. Alex
  • Patent number: 10798182
    Abstract: In accordance with various embodiments, a method is performed including establishing a first communication session between an application function and a user equipment assigned a first IP address. The method includes determining, by the application function, that the user equipment has changed location. The method includes, in response to determining that the user equipment has changed location, sending, by the application function, a request that the user equipment be assigned a second IP address. The method includes establishing a second communication session between the application function and the user equipment assigned the second IP address.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: October 6, 2020
    Assignee: Cisco Technology, Inc.
    Inventors: Irfan Ali, Humberto Jose La Roche, Aeneas Sean Dodd-Noble, Ravi Kiran Guntupalli, Ravi Shekhar