公开(公告)号：US20240022989A1

公开(公告)日：2024-01-18

申请号：US17813197

申请日：2022-07-18

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Vimal Srivastava

IPC: H04W40/02

CPC classification number: H04W40/02

Abstract: Provisioning User Equipment (UE) Route Selection Policies (URSP) may be provided. A policy of a user equipment (UE) may be updated by a Policy Control Function (PCF). Then, the PCF may create a UE route selection policy (URSP) based on the updated UE policy. Next, the PCF may set a flag in in the URSP that may indicate to the UE that the URSP is applicable for new sessions and inapplicable for ongoing sessions. The PCF may then send the URSP to the UE, wherein the UE applies the URSP for new sessions.

公开(公告)号：US11696124B2

公开(公告)日：2023-07-04

申请号：US17497320

申请日：2021-10-08

Applicant: Cisco Technology, Inc.

Inventor： Vimal Srivastava ,  Ravi Shekhar

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

CPC classification number: H04W12/0433 ,  H04W12/033 ,  H04W12/041 ,  H04W12/0431

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：US20230189115A1

公开(公告)日：2023-06-15

申请号：US17550322

申请日：2021-12-14

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Vimal Srivastava

IPC: H04W40/04 ,  H04W40/12 ,  H04W48/18

CPC classification number: H04W40/04 ,  H04W40/12 ,  H04W48/18

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.

公开(公告)号：US20230052655A1

公开(公告)日：2023-02-16

申请号：US17391199

申请日：2021-08-02

Applicant: Cisco Technology, Inc.

Inventor： Pravin Appaji Ajagekar ,  Ravi Shekhar ,  Nithin Chitta

IPC: H04L29/06 ,  H04L29/08 ,  H04W12/033 ,  H04W12/037

Abstract: A network node selectively encrypts messages between a user plane node and a control plane node in a network system. The user plane node and the control plane node negotiate a connection and indicate an encryption level for the connection. The encryption level is selected from an Information Element (IE) level, a message level, or a feature level. The user plane node and the control plane node selectively encrypt at least a portion of the messages between the user plane node and the control plane node based on the encryption level for the connection.

公开(公告)号：US20230014876A1

公开(公告)日：2023-01-19

申请号：US17379468

申请日：2021-07-19

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Ameo Ghosh

IPC: H04L29/08 ,  H04L29/06

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：US20220361081A1

公开(公告)日：2022-11-10

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 ,  H04W72/02 ,  H04W72/04 ,  H04W48/18

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：US20220141718A1

公开(公告)日：2022-05-05

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 ,  H04W48/16 ,  H04W36/32 ,  H04W76/11

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：US20190132727A1

公开(公告)日：2019-05-02

申请号：US15795532

申请日：2017-10-27

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Ameo Ghosh ,  Sharad Chandra ,  Humberto Jose La Roche ,  Ian McDowell Campbell

IPC: H04W8/20 ,  H04W8/18 ,  H04W12/06 ,  G06F17/30

Abstract: Methods and apparatus for use in reducing signal latency in a mobile network with use of localized Unified Data Management (UDM) entities are described. For example, the technique may employ a plurality of localized UDMs, where each localized UDM is associated with a unique location area. A localized UDM provides for storage of, in a localized Unified Data Repository (UDR), subscriber profile data associated with a subscriber of user equipment (UE). The subscriber profile data stored in the localized UDR may be a replica or copy of at least a subset of subscriber profile data for the subscriber stored in a UDR of a “centralized” UDM. Query access to the localized UDR may be provided for network functions (NFs) or subscriber/UEs. The replica or copy of subscriber profile data may be stored in the localized UDR for those subscribers having use in the location area.

公开(公告)号：US12160809B2

公开(公告)日：2024-12-03

申请号：US17550322

申请日：2021-12-14

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Vimal Srivastava

IPC: H04W40/12 ,  H04W40/04 ,  H04W48/18

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.

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.