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: 11659365
    Abstract: Techniques are described herein for providing radio resource ownership indicators in charging records for a charging function. In one example, a method may include determining, by a session management node of a mobile network, that a user equipment is utilizing a particular radio resource of a mobile network resource for a Protocol Data Unit (PDU) session of the user equipment, wherein the mobile network resource is capable of being utilized via a plurality of radio resources and the particular radio resources is associated with an enterprise entity; and reporting charging information for the PDU session of the user equipment to a charging function of the mobile network to facilitate storing a charging record for the user equipment that is to include an identifier of the enterprise entity that is associated with the particular radio resource.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: May 23, 2023
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Srinath Gundavelli, Vimal Srivastava, Timothy Peter Stammers, Mark Grayson
  • Patent number: 11659480
    Abstract: Systems and methods for providing access prioritization to a private Long Term Evolution (LTE) network operating in a Citizens Broadband Radio Service (CBRS) spectrum include receiving, at a network device of the private Long Term Evolution (LTE) network, a functional group associated with a user equipment (UE) and a traffic load of a cell of the private LTE network associated with the UE. An access priority associated with the functional group and the traffic load is determined and provided to a CBRS access point (AP) which controls access to the cell. The access priority indicates to the CBRS AP a priority with which the UE is allowed to access the cell and can include a high priority, a low priority, or no access indication.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: May 23, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Vimal Srivastava, Indermeet Singh Gandhi, Sangram Kishore Lakkaraju, Sri Gundavelli
  • Publication number: 20230156649
    Abstract: A mobile network is operative to perform a quota validation procedure in relation to a maximum number of user equipments (UEs) permitted in a network slice. In one illustrative example, a control plane (CP) function of the mobile network may receive, from the UE, a message which indicates a registration request for registration and includes a slice ID of the network slice. The CP function may manage a registration procedure for assigning resources of the network slice to the UE. The CP function may alternatively manage the registration procedure to refrain from assigning the resources of the network slice to the UE, at least for a delay time period, based on identifying that an indication of the UE indicates an expected delay in use of service in the network slice. The indication may be included in the message and indicate the delay time period of the expected delay.
    Type: Application
    Filed: November 17, 2021
    Publication date: May 18, 2023
    Inventors: Vimal Srivastava, Ravi Shekhar
  • Patent number: 11653194
    Abstract: Presented herein are techniques to facilitate resiliency, overload control, and/or the like for an Access and Mobility Management Function (AMF) in a Third Generation Partnership Project (3GPP) mobile network architecture. In one instance, a method is provided that includes initiating, by a buddy AMF, a heartbeat exchange with a primary AMF. The method may further include identifying a status condition for the primary AMF by the buddy AMF based on the heartbeat exchange and providing a status indication to a radio access network node by the buddy AMF based on the status condition for the primary AMF.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: May 16, 2023
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Ravi Shekhar, Vimal Srivastava
  • Publication number: 20230132096
    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: Application
    Filed: October 25, 2021
    Publication date: April 27, 2023
    Inventors: Ravi Shekhar, Aditya Prakash, Amit Shivhare, Vimal Srivastava
  • Publication number: 20230119693
    Abstract: A system and method for dynamic enablement of a RLC mode of a Data Radio Bearer (DRB) based on UE radiofrequency (RF) conditions. A threshold value for a network characteristic is provided to a gNodeB. Changes in the network characteristic correlates to changes in RF channel conditions of the UE. The trigger configures the gNodeB to identify when the network characteristic meets the threshold value for selectively controlling operation of the gNodeB at one of a plurality of different operation modes including an initial radio link control (RLC) mode based on the network characteristic. A Protocol Data Unit (PDU) session is established with the gNodeB operating in an initial RLC mode with the possibility to dynamically switch to a different RLC mode based on RF channel conditions.
    Type: Application
    Filed: October 14, 2021
    Publication date: April 20, 2023
    Inventors: Vimal Srivastava, Sri Gundavelli, Abhishek Dhammawat
  • Publication number: 20230115314
    Abstract: Presented herein are techniques to facilitate secure communications with an Application Function (AF) for a client device that does not support Authentication and Key Management for Applications (AKMA) functionality. In one example, a method includes obtaining, by a user plane function (UPF), a first uplink data packet from a client device, wherein the first uplink data packet is to be communicated to an application; determining, by the UPF based on the first uplink data packet, whether the client device supports AKMA functionality; based on determining that the client device does not support the AKMA functionality, buffering at least the first uplink data packet by the user plane function and determining whether the application supports the AKMA functionality; and based on determining that the application supports the AKMA functionality, performing AKMA functionality by the UPF for the client device for data communications between the client device and the application.
    Type: Application
    Filed: October 8, 2021
    Publication date: April 13, 2023
    Inventors: Vimal Srivastava, Ravi Shekhar
  • Patent number: 11627441
    Abstract: A control plane function node may be used in a Fifth Generation (5G) Non-Standalone (NSA) architecture having Radio Access Network (RAN) level interworking between a Long-Term Evolution (LTE) RAN and a 5G New Radio (NR). The node obtains usage report data which are based on traffic of a user equipment (UE) via primary and secondary Radio Access Technologies (RATs). The node also obtains secondary RAT usage report data which are based on traffic of the UE via the secondary RAT. The node constructs a message which indicates a request for charging based on the usage report data and the secondary RAT usage report data. In constructing the message, the node populates, in association with a corresponding rating group and usage data of the UE, an identifier of a flow or bearer associated with secondary RAT usage, together with the secondary RAT usage report data.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: April 11, 2023
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Dishant Mukesh Parikh, Mukesh Yadav, Aditya Prakash, Ravi Shekhar, Vimal Srivastava
  • Publication number: 20230109664
    Abstract: Presented herein are techniques to facilitate providing slice attribute information to a user equipment (UE) for one or more slice types with which the user equipment is allowed to establish one or more session(s). In one example, a method may include obtaining, by a network element, a registration request for connection of a UE to a mobile network; performing an authentication for connection of the UE to the mobile network; and upon successful authentication, providing, by the network element, a registration response to the UE, wherein the registration response identifies one or more network slice types with which the UE is authorized to establish a session and the registration response identifies one of: attribute information for each of the one or more network slice types or network location information from which attribute information for each of the one or more network slice types is to be obtained.
    Type: Application
    Filed: October 5, 2021
    Publication date: April 6, 2023
    Inventors: Srinath Gundavelli, Vimal Srivastava, Oliver James Bull
  • Publication number: 20230092940
    Abstract: Techniques are described herein for providing radio resource ownership indicators in charging records for a charging function. In one example, a method may include determining, by a session management node of a mobile network, that a user equipment is utilizing a particular radio resource of a mobile network resource for a Protocol Data Unit (PDU) session of the user equipment, wherein the mobile network resource is capable of being utilized via a plurality of radio resources and the particular radio resources is associated with an enterprise entity; and reporting charging information for the PDU session of the user equipment to a charging function of the mobile network to facilitate storing a charging record for the user equipment that is to include an identifier of the enterprise entity that is associated with the particular radio resource.
    Type: Application
    Filed: September 22, 2021
    Publication date: March 23, 2023
    Inventors: Srinath Gundavelli, Vimal Srivastava, Timothy Peter Stammers, Mark Grayson
  • Patent number: 11612015
    Abstract: A controller of a macro wireless network provisions a user device for access to local private networks based on the cell that the user device uses to attach to the macro wireless network. The controller obtains information on private networks operating within a coverage area of the macro wireless network. The controller associates a particular cell of the macro wireless network with one or more private networks operating within the particular cell. The controller detects a user device in the particular cell and provisions the user device with access to the one or more private networks.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: March 21, 2023
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Srinath Gundavelli, Indermeet Singh Gandhi, Timothy Peter Stammers, Vimal Srivastava
  • 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: 20230049321
    Abstract: Presented herein are techniques to facilitate visited network selection by a user equipment (UE) based on slice considerations. In one example, a method may include requesting, by a UE that is roaming among a plurality of visited mobile networks, registration for a network connection associated with a slice type; obtaining, by the UE from home mobile network for the UE, a priority for each of the plurality of visited mobile networks and an indication of one or more slice types provided by each of the plurality of visited mobile networks; selecting, by the UE, a highest priority visited mobile network of the plurality of visited mobile networks that provides the slice type; and establishing, by the UE, the network connection with the highest priority visited mobile network of the plurality of visited mobile networks that provides the slice type.
    Type: Application
    Filed: August 16, 2021
    Publication date: February 16, 2023
    Inventors: Srinath Gundavelli, Vimal Srivastava
  • Publication number: 20230035976
    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 the device context of the mobile device. The network function directs at least one network function in the network to support the mobile device with a set of network settings corresponding to the selected device group.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 2, 2023
    Inventors: Aditya Prakash, Ravi Shekhar, Vimal Srivastava
  • Patent number: 11570145
    Abstract: In one illustrative example, a user plane function (UPF) configured for use in a private 5G network of an enterprise may receive, from a user device, a domain name system (DNS) query associated with an application; send, to a DNS server, one or more corresponding DNS queries based on the DNS query; receive, from the DNS server, one or more DNS query responses which include an IP address and metadata including an application identifier for the application; and send, to a control plane function, a message for reporting which includes the application identifier. In response, a dedicated Quality of Service (QoS) Flow may be created for traffic for the application according to a selected QoS policy associated with the application identifier. For obtaining the metadata, the UPF may interact with a DNS server configured with Extension mechanisms for DNS (EDNS) or a DNS as Authoritative Source (DNS-AS) mechanism.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: January 31, 2023
    Assignee: CISCO TECHNOLOGY, INC.
    Inventors: Srinath Gundavelli, Vimal Srivastava, Indermeet Singh Gandhi, Timothy Peter Stammers
  • Patent number: 11564145
    Abstract: The present technology is directed to routing a user equipment (UE) to a network node, for example, a gNB or ng-eNB that supports a slice requirement of the UE. A first network node can receive a Radio Resource Control (RCC) connection request from a UE, and can determine that a slice requirement of the UE is not supported by the first network node. The first network node can further select a second network node that supports the slice requirement of the UE, and route the UE to connect to the second network node.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: January 24, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Ravi Shekhar, Vimal Srivastava
  • Publication number: 20230010391
    Abstract: Presented herein are techniques to provide data session continuity for parallel data sessions involving a multiple Universal Subscriber Identity Module (MUSIM) user equipment (UE). In one example, a method may include obtaining an indication that session continuity for a first session associated with a first data network and a first USIM of a UE is allowed with respect to a second USIM in which the UE communicates first traffic for the first session via the first USIM. The method may further include determining that second traffic for a second session is to be communicated via the second USIM of the UE and, based on the indication that session continuity for the first session is allowed with respect to the second USIM, providing service information to the UE for the first session to enable the UE to communicate both the first traffic and the second traffic via the second USIM.
    Type: Application
    Filed: July 7, 2021
    Publication date: January 12, 2023
    Inventors: Aditya Prakash, Ravi Shekhar, Vimal Srivastava, Amit Shivhare
  • Publication number: 20220417726
    Abstract: A first access and mobility management function (AMF) in a network receives, from user equipment (UE), a registration request listing a first network slice and a second network slice. Upon determining that the first AMF supports the first, but not the second, network slice, the first AMF causes selection of (i) the first AMF as a session and mobility management (SM)-AMF to perform mobility management, and first session management signaling for the first network slice; and (ii) a second AMF as a session management only (SO)-AMF to perform only second session management signaling for the second network slice. The first AMF, acting as SM-AMF, performs the first session management signaling for a first data session on the first network slice, while the second AMF, acting as SO-AMF, performs only the second session management signaling for a second data session on the second network slice.
    Type: Application
    Filed: June 25, 2021
    Publication date: December 29, 2022
    Inventors: Vimal Srivastava, Sangram Kishore Lakkaraju, Anal Srivastava, Srinath Gundavelli
  • Publication number: 20220408301
    Abstract: A control plane function node may be used in a Fifth Generation (5G) Non-Standalone (NSA) architecture having Radio Access Network (RAN) level interworking between a Long-Term Evolution (LTE) RAN and a 5G New Radio (NR). The node obtains usage report data which are based on traffic of a user equipment (UE) via primary and secondary Radio Access Technologies (RATs). The node also obtains secondary RAT usage report data which are based on traffic of the UE via the secondary RAT. The node constructs a message which indicates a request for charging based on the usage report data and the secondary RAT usage report data. In constructing the message, the node populates, in association with a corresponding rating group and usage data of the UE, an identifier of a flow or bearer associated with secondary RAT usage, together with the secondary RAT usage report data.
    Type: Application
    Filed: June 17, 2021
    Publication date: December 22, 2022
    Inventors: Dishant Mukesh Parikh, Mukesh Yadav, Aditya Prakash, Ravi Shekhar, Vimal Srivastava
  • Publication number: 20220361081
    Abstract: The present technology is directed to routing a user equipment (UE) to a network node, for example, a gNB or ng-eNB that supports a slice requirement of the UE. A first network node can receive a Radio Resource Control (RCC) connection request from a UE, and can determine that a slice requirement of the UE is not supported by the first network node. The first network node can further select a second network node that supports the slice requirement of the UE, and route the UE to connect to the second network node.
    Type: Application
    Filed: May 5, 2021
    Publication date: November 10, 2022
    Inventors: Ravi Shekhar, Vimal Srivastava