公开(公告)号：US11206593B2

公开(公告)日：2021-12-21

申请号：US16790078

申请日：2020-02-13

Applicant: Cisco Technology, Inc.

Inventor： Om Prakash Suthar ,  Ryo Watanabe ,  Aeneas Sean Dodd-Noble ,  Raghavendra Suryanarayanarao Vidyashankar ,  Vivek Agarwal

IPC: H04W36/00 ,  H04W36/12 ,  H04W8/24

Abstract: In one example, an indication that a user equipment participating in a Packet Data Network (PDN) session hosted by a Serving Gateway (SGW) and a PDN Gateway (PGW) is transitioning from a first Mobility Management Entity (MME) to a second MME is obtained. An indication that the SGW is co-located with the PGW and an identification of the SGW are obtained. Based on the indication that the SGW is co-located with the PGW and the identification of the SGW, it is determined that the SGW is reachable from the second MME. In response to determining that the SGW is reachable from the second MME, the SGW is selected to host the PDN session after the user equipment transitions from the first MME to the second MME.

公开(公告)号：US20210351983A1

公开(公告)日：2021-11-11

申请号：US17381042

申请日：2021-07-20

Applicant: Cisco Technology, Inc.

Inventor： Raghavendra Suryanarayana Rao Vidyashankar ,  Arun Gunasekaran ,  Padmaraj Ramanoudjam ,  Om Prakash Suthar

IPC: H04L12/24 ,  H04L29/08

Abstract: In one embodiment, a method includes determining a first configuration information for configuring a user plane device of the first network slice associated with the control plane device, generating a first configuration identifier based on the first configuration information, sending, to the user plane device of the first network slice, the first configuration identifier and the first configuration information, receiving, from the user plane device of the first network slice, a second configuration identifier, wherein the second configuration identifier is generated by the user plane device of the first network slice based on the first configuration information received from the control plane device, and verifying, by comparing the first configuration identifier and the second configuration identifier, that the user plane device of the first network slice is configured using the first configuration information.

公开(公告)号：US20210258766A1

公开(公告)日：2021-08-19

申请号：US16791500

申请日：2020-02-14

Applicant: Cisco Technology, Inc.

Inventor： Ryo Watanabe ,  Aeneas Sean Dodd-Noble ,  Santhosh Shenoy Panambur ,  Om Prakash Suthar ,  Raghavendra Vidyashankar Suryanarayanarao ,  Vivek Agarwal

IPC: H04W8/08 ,  H04W48/16 ,  H04L29/12 ,  H04W60/00 ,  H04W36/32 ,  H04W36/00

Abstract: Presented herein are efficient techniques through which a Third Generation Partnership Project (3GPP) Access and Mobility Management Function (AMF) may retrieve information for a Mobility Management Entity (MME) to support graceful mobility for various inter-Radio Access Technology (inter-RAT) mobility scenarios. In one example, a method includes determining, by an AMF, an inter-RAT mobility event for a user equipment; identifying, by the AMF, an MME associated with the inter-RAT mobility event based, at least in part, on MME information contained in a network database; and transferring context information for the user equipment between the AMF and the MME. In one instance, the network database may be a Network Repository Function (NRF) for a 3GPP Fifth Generation mobile network and the MME information may be associated with an MME network function type stored in the NRF.

公开(公告)号：US10798178B2

公开(公告)日：2020-10-06

申请号：US16389420

申请日：2019-04-19

Applicant: Cisco Technology, Inc.

Inventor： Aeneas Sean Dodd-Noble ,  Om Prakash Suthar ,  Ianik Semco

IPC: H04L29/08 ,  H04W12/08 ,  H04L29/06 ,  H04W84/04

Abstract: A network function (NF) entity in a communication network receives User Plane Function (UPF) registration information for a plurality of UPFs, the registration information including a respective network attribute for each UPF. The NF entity associates each UPF with a corresponding network based on the respective network attribute, and map one or more User Equipment (UE) to the corresponding network based on a security policy to create a UE-to-network table. The NF further receives a request to establish a session for a subsequent UE, the request including a subsequent UE identifier, and determine an access permission for the subsequent UE to access the corresponding network based on the subsequent UE identifier and the UE-to-network table. The NF selects one UPF from the plurality of UPF to service the session for the subsequent UE based on the access permission, and an association between the one UPF and the corresponding network.

公开(公告)号：US20200304408A1

公开(公告)日：2020-09-24

申请号：US16400386

申请日：2019-05-01

Applicant: Cisco Technology, Inc.

Inventor： Om Prakash Suthar ,  Arghya Mukherjee ,  Aeneas Dodd-Noble ,  Carlos M. Pignataro

IPC: H04L12/721 ,  H04L12/46 ,  H04L29/08 ,  H04W8/18 ,  H04L12/26

Abstract: Techniques associated with localizing data traffic for a time sensitive network within a virtualized radio access network are provided. In one embodiment, a method includes determining that a user equipment (UE) is associated with a time sensitive network; and localizing data traffic for the UE within a virtualized radio access network based on determining that the data traffic for the UE can be localized at one centralized user plane component of the virtualized radio access network for the time sensitive network. The data traffic can be Layer-2 data traffic or unstructured data traffic.

公开(公告)号：US20200267049A1

公开(公告)日：2020-08-20

申请号：US16278787

申请日：2019-02-19

Applicant: Cisco Technology, Inc.

Inventor： Raghavendra Suryanarayanarao ,  Om Prakash Suthar ,  Aeneas Sean Dodd-Noble ,  Vivek Agarwal ,  Rajiv Asati ,  Carlos M. Pignataro

IPC: H04L12/24 ,  H04W72/10 ,  H04W76/10 ,  H04L12/803

Abstract: Techniques are presented in which a new information element signaling priority of a management entity is included in a setup (e.g., S1-Setup) response or configuration update message sent by a management entity to a base station entity. The base station entity interprets this priority information along with the relative capacity information in an appropriate way to load-distribute the traffic/calls to highly preferable management entity instances (at a local site) when they are available, and switchover/failover to lower preference management entity instances (at a remote site) when there is a local site outage/failure or insufficient capacity in a geo-resilient pooled network.

公开(公告)号：US10742396B2

公开(公告)日：2020-08-11

申请号：US16415884

申请日：2019-05-17

Applicant: Cisco Technology, Inc.

Inventor： Om Prakash Suthar ,  Ammar Rayes ,  Michael David Geller ,  Ian McDowell Campbell ,  Aeneas Sean Dodd-Noble

IPC: H04L9/06 ,  H04W12/06 ,  H04W12/08 ,  H04L29/06 ,  G06Q20/40 ,  G06Q20/32 ,  H04W60/00 ,  G06Q20/36 ,  G06Q20/10 ,  G06Q20/38 ,  G06Q20/06 ,  H04L9/32 ,  G06F9/455 ,  H04L9/08 ,  H04L9/30 ,  H04L12/911 ,  H04W8/02 ,  H04W88/02 ,  H04W8/18 ,  H04W60/04

Abstract: A network function (NF) entity in a communication network receives authentication data associated with a User Equipment (UE), determines the UE supports a blockchain registration procedure based on the authentication data, exchanges authentication messages with a Blockchain Roaming Broker (BRB) entity over a blockchain network interface, receives a blockchain authentication confirmation from the BRB entity, and registers the UE with the core network based on the blockchain authentication confirmation.

公开(公告)号：US10361843B1

公开(公告)日：2019-07-23

申请号：US16205017

申请日：2018-11-29

Applicant: Cisco Technology, Inc.

Inventor： Om Prakash Suthar ,  Ammar Rayes ,  Michael David Geller ,  Ian McDowell Campbell ,  Aeneas Sean Dodd-Noble

IPC: H04L9/06 ,  H04L9/08 ,  H04L12/24 ,  H04L29/06 ,  G06F9/455 ,  H04L9/32 ,  H04L9/30 ,  H04L12/911 ,  H04W8/02

Abstract: A network slice manager receives a workload mobility request to add network resources to a domain in the communication network, and authenticates a virtual network function (VNF) with a blockchain authentication function (BAF) over a blockchain network interface based on the workload mobility request. The network slice manager further receives an indication of a successful authentication from the BAF, and instantiates the VNF in the domain of the communication network based on the indication of the successful authentication. Notably, these authentication processes may be readily adapted to instantiate new network resources or migrate existing network resources between domains.

公开(公告)号：US10285155B1

公开(公告)日：2019-05-07

申请号：US16140255

申请日：2018-09-24

Applicant: Cisco Technology, Inc.

Inventor： Aeneas Sean Dodd-Noble ,  Pablo Camarillo Garvia ,  Om Prakash Suthar

IPC: H04W64/00 ,  H04W4/029 ,  H04W24/10 ,  H04L12/26 ,  H04W8/24

Abstract: Aspects of the disclosed technology provide ways to report User Equipment (UE) device locations in a 5G network for the purpose of redirecting application traffic from proximately located Data Networks (DNs). In one aspect, the disclosed technology encompasses a process for conveying User Equipment (UE) information to an Application Function (AF), the process includes steps for receiving, at an intermediate-User Plane Function (I-UPF) entity, User Equipment (UE) uplink data from a Radio Access Network (RAN), determining if sharing of location information or application information associated with the UE is restricted, and encapsulating first location metadata or application metadata in an SRv6 packet if the sharing of location information or application information is not restricted. Systems and machine-readable media are also provided.

公开(公告)号：US20240015066A1

公开(公告)日：2024-01-11

申请号：US18473107

申请日：2023-09-22

Applicant: Cisco Technology, Inc.

Inventor： Raghavendra Suryanarayana Rao Vidyashankar ,  Arun Gunasekaran ,  Padmaraj Ramanoudjam ,  Om Prakash Suthar

IPC: H04L41/0859 ,  H04L41/0853 ,  H04L41/0866

CPC classification number: H04L41/0863 ,  H04L41/0856 ,  H04L41/0866

Abstract: In one embodiment, a method includes determining first configuration information for configuring a first user plane device of a first network slice associated with a control plane device, generating a first configuration identifier based on the first configuration information, sending the first configuration identifier and the first configuration information, releasing an association with the first user plane device, receiving a first request to establish the association from the first user plane device comprising a first local configuration identifier, and determining whether the first user plane device is configured using second configuration information by comparing the first local configuration identifier and a second configuration identifier generated based on the second configuration information, where the second configuration information is latest configuration information for the first user plane device.