公开(公告)号：US20240056789A1

公开(公告)日：2024-02-15

申请号：US17819696

申请日：2022-08-15

Applicant: Cisco Technology, Inc.

Inventor： Omkara Srinivas Rao Karnati ,  Ravi Shekhar ,  Seung Cheol Park ,  Rajaneesh Shetty ,  Niranjan Mallapura Mallikarjunaiah

IPC: H04W8/18 ,  H04W76/10 ,  H04W48/18

CPC classification number: H04W8/18 ,  H04W76/10 ,  H04W48/18

Abstract: Connection configuration for Fourth Generation (4G) and Fifth Generation (5G) converged deployment may be provided. A User Equipment (UE) Usage Type (UUT) mapping may be stored, wherein the UUT mapping includes an Attribute Value Pair (AVP) for one or more UUTs. A connection to a 5G network from a 4G network may be received from a UE, wherein the connection comprises subscription information that includes a UUT the UE is subscribed to. In response to receiving the UUT, a subscriber profile for the UE in a converged packet core may be determined using the UUT mapping, and the configuration of the connection for the UE may be established based on the determined subscriber profile.

公开(公告)号：US20240031803A1

公开(公告)日：2024-01-25

申请号：US17813845

申请日：2022-07-20

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Vimal Srivastava

IPC: H04W12/06 ,  H04W12/08 ,  H04W60/00

CPC classification number: H04W12/06 ,  H04W12/08 ,  H04W60/00

Abstract: The present disclosure provides solutions to registration and discovery of NFs in the vertical 5G networks, at the operator network, as well as handling tasks such as authentication of connecting end terminals at the operator network level. In one aspect, a method includes receiving, at network controller of an operator network and from an end terminal, a request for access to a network function (NF) of a vertical network, the request including a type of the NF in the vertical network; authenticating, at the network controller, the end terminal; upon authenticating the end terminal, identifying, at the network controller, the NF requested by the end terminal based at least on the type of the NF included in the request; and facilitating, by the network controller, access to the NF in the vertical network by the end terminal.

公开(公告)号：US11743230B2

公开(公告)日：2023-08-29

申请号：US17733489

申请日：2022-04-29

Applicant: Cisco Technology, Inc.

Inventor： Aeneas Sean Dodd-Noble ,  Irfan Ali ,  Ravi Kiran Guntupalli ,  Ravi Shekhar

IPC: H04L61/256

CPC classification number: H04L61/256

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.

公开(公告)号：US11706608B2

公开(公告)日：2023-07-18

申请号：US17386680

申请日：2021-07-28

Applicant: Cisco Technology, Inc.

Inventor： Aditya Prakash ,  Ravi Shekhar ,  Vimal Srivastava

IPC: H04W8/18 ,  H04W28/24 ,  H04W8/20

CPC classification number: H04W8/186 ,  H04W8/20 ,  H04W28/24

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.

公开(公告)号：US20230115314A1

公开(公告)日：2023-04-13

申请号：US17497320

申请日：2021-10-08

Applicant: Cisco Technology, Inc.

Inventor： Vimal Srivastava ,  Ravi Shekhar

IPC: H04W12/0433 ,  H04W12/033 ,  H04W12/0431 ,  H04W12/041

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.

公开(公告)号：US11564145B2

公开(公告)日：2023-01-24

申请号：US17308763

申请日：2021-05-05

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Vimal Srivastava

IPC: H04W40/04 ,  H04W40/28 ,  H04W40/34 ,  H04W72/04 ,  H04W48/18 ,  H04W72/02

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.

公开(公告)号：US11558466B1

公开(公告)日：2023-01-17

申请号：US17379468

申请日：2021-07-19

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Ameo Ghosh

IPC: G06F15/16 ,  H04L67/14 ,  H04L67/02 ,  H04L67/133

Abstract: A computing device may be configured to provide a shared N4 termination function for a plurality of Session Management Function (SMF) instances of an SMF Set and interface with one or more User Plane Function (UPF) instances. To achieve this, the computing device may operate a server configured with a Remote Procedure Call (RPC)-based protocol (e.g. gRPC Remote Procedure Call or “gRPC”) for a Packet Forwarding Control Protocol (PFCP) message service for serving a plurality of client stubs respectively situated at the plurality of SMF instances. The server may perform processing associated with each client stub by receiving an RPC-based protocol message which indicates a request, unpacking the RPC-based protocol message for obtaining PFCP message request data, and operating or interfacing with a PFCP message handling client for sending a PFCP message having the PFCP message request data to an indicated one of the UPF instances.

公开(公告)号：US11470515B2

公开(公告)日：2022-10-11

申请号：US17089965

申请日：2020-11-05

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Suyog Subhash Belsare ,  Ravi Sankar Mantha

IPC: H04W36/00 ,  H04W8/08 ,  H04W76/11 ,  H04W36/32 ,  H04W48/16

Abstract: A mechanism is provided to ensure the same user plane anchor point is selected as a User Equipment (UE) moves across multiple access networks. The selected User Plane Function (UPF) identifier information, such as a Fully Qualified Domain Name (FQDN) is passed to the UE anchor points. This will allow the UE anchor points to exchange the already selected user plane information so that the new UE anchor point can choose the same UPF.

公开(公告)号：US20220263792A1

公开(公告)日：2022-08-18

申请号：US17733489

申请日：2022-04-29

Applicant: Cisco Technology, Inc.

Inventor： Aeneas Sean Dodd-Noble ,  Irfan Ali ,  Ravi Kiran Guntupalli ,  Ravi Shekhar

IPC: H04L61/256

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.

公开(公告)号：US11216321B2

公开(公告)日：2022-01-04

申请号：US16859510

申请日：2020-04-27

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Ameo Ghosh ,  Ian McDowell Campbell

IPC: G06F9/44 ,  G06F9/54 ,  H04L29/08 ,  H04L12/781 ,  H04L12/773 ,  H04L12/741 ,  H04L12/725 ,  H04L12/931

Abstract: Systems, methods, and computer-readable media for managing service calls over a network may include a signal routing engine with a maintained forwarding table for various network functions and micro-services in a services back end for the network. The signal routing engine can include a call conversion service for converting REST API calls to an internal network call protocol for increasing network function processing speeds, decreasing bandwidth usage, and improving network responsiveness and manageability.