公开(公告)号：US10284420B2

公开(公告)日：2019-05-07

申请号：US15436836

申请日：2017-02-19

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Konstantin Livanos ,  Ian McDowell Campbell ,  Charles C. Wolfinger

IPC: H04L12/24 ,  H04L12/26 ,  H04W24/04 ,  H04L12/14 ,  H04W4/24 ,  H04M15/00 ,  H04L29/12 ,  H04W88/16

Abstract: A method is provided in one example embodiment and may include maintaining, by a Diameter Routing Agent (DRA), an availability status for a plurality of network elements; receiving a request associated with a user equipment (UE) session, wherein a first network element of the plurality of network elements is serving the UE session; determining that the first network element serving the UE session is unavailable; and re-establishing the UE session at a second network element of the plurality of network elements that is available, wherein the re-establishing is performed without terminating the UE session.

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：US09843687B2

公开(公告)日：2017-12-12

申请号：US14536642

申请日：2014-11-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Ian McDowell Campbell ,  Rajesh S. Pazhyannur ,  Mark Grayson ,  Alon Ben Ami

IPC: H04W4/00 ,  H04M15/00 ,  H04W8/18 ,  H04W48/18 ,  H04L12/14 ,  H04W24/10 ,  H04W48/08 ,  H04W88/06 ,  H04W84/12

CPC classification number: H04M15/66 ,  H04L12/1407 ,  H04W8/18 ,  H04W24/10 ,  H04W48/08 ,  H04W48/18 ,  H04W84/12 ,  H04W88/06

Abstract: An example method is provided in one example embodiment and may include receiving a request from a user equipment (UE) to access a wireless access network, wherein the UE is currently accessing one or more other wireless networks; determining by a Policy and Charging Rules Function (PCRF) whether a subscriber associated with the UE is authorized to access the wireless access network based, at least in part, on a profile for the subscriber; and communicating one of a wireless access rejection and a wireless access acceptance to the UE based on the determination. In some instances, the determining can include recovering the profile for the subscriber associated with the UE from a Subscriber Profile Repository (SPR) using an International Mobile Subscriber Identity (IMSI) for the subscriber.

公开(公告)号：US09825769B2

公开(公告)日：2017-11-21

申请号：US14728010

申请日：2015-06-02

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Robert M. Batz ,  Ian McDowell Campbell ,  Hendrikus G. P. Bosch

IPC: H04L12/14 ,  H04L29/08 ,  H04L29/12 ,  H04M15/00 ,  H04L12/26 ,  H04L12/24

CPC classification number: H04L12/1407 ,  H04L12/1403 ,  H04L41/0893 ,  H04L41/5096 ,  H04L43/028 ,  H04L61/25 ,  H04L61/2514 ,  H04L61/6068 ,  H04L67/1002 ,  H04L67/14 ,  H04M15/66 ,  H04M15/8044 ,  H04M15/8214

Abstract: A method is provided in one example embodiment and may include receiving a first Internet protocol (IP) flow for an IP session for a subscriber; selecting a first service function group from a plurality of service function groups to perform one or more services for the IP session for the subscriber, wherein each of the plurality of service function groups comprises a plurality of service function chain types and wherein each service function chain type comprises an ordered combination of one or more service functions; assigning the IP session for the subscriber to the first service function group; and forwarding the first IP flow for the IP session of the subscriber across a first service function chain type for the first service function group based, at least in part, on a service policy for the subscriber.

公开(公告)号：US20160344803A1

公开(公告)日：2016-11-24

申请号：US14728010

申请日：2015-06-02

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Robert M. Batz ,  Ian McDowell Campbell ,  Hendrikus G. P. Bosch

IPC: H04L29/08

CPC classification number: H04L12/1407 ,  H04L12/1403 ,  H04L41/0893 ,  H04L41/5096 ,  H04L43/028 ,  H04L61/25 ,  H04L61/2514 ,  H04L61/6068 ,  H04L67/1002 ,  H04L67/14 ,  H04M15/66 ,  H04M15/8044 ,  H04M15/8214

Abstract: A method is provided in one example embodiment and may include receiving a first Internet protocol (IP) flow for an IP session for a subscriber; selecting a first service function group from a plurality of service function groups to perform one or more services for the IP session for the subscriber, wherein each of the plurality of service function groups comprises a plurality of service function chain types and wherein each service function chain type comprises an ordered combination of one or more service functions; assigning the IP session for the subscriber to the first service function group; and forwarding the first IP flow for the IP session of the subscriber across a first service function chain type for the first service function group based, at least in part, on a service policy for the subscriber.

Abstract translation: 在一个示例实施例中提供了一种方法，并且可以包括为用户接收用于IP会话的第一因特网协议（IP）流; 从多个服务功能组中选择第一服务功能组，为所述用户执行所述IP会话的一个或多个服务，其中所述多个服务功能组中的每一个包括多个服务功能链类型，并且其中每个服务功能链 类型包括一个或多个服务功能的有序组合; 将用户的IP会话分配给第一服务功能组; 以及至少部分地基于用户的服务策略，为第一服务功能组的第一服务功能链类型转发用户的IP会话的第一IP流。

公开(公告)号：US20160227044A1

公开(公告)日：2016-08-04

申请号：US14614500

申请日：2015-02-05

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Konstantin Livanos ,  Ian McDowell Campbell

IPC: H04M15/00 ,  H04W4/24

CPC classification number: H04L12/1407 ,  H04L41/0893 ,  H04L67/10 ,  H04L67/1002 ,  H04M15/66 ,  H04W4/24

Abstract: A method is provided in one example embodiment and may include establishing a first binding for a first session for a UE, wherein the first binding includes, at least in part, PCEF connectivity information for a PCEF associated with a PGW hosting the first session for the UE, wherein the first binding is established by a first DRA in a first IP domain; receiving a request by second DRA in a second IP domain associated with establishing a second session for the UE; determining a PCRF serving the first session for the UE; and binding the second session for the UE with the first session for the UE. A method is provided in another example embodiment and may include exchanging PCEF connectivity information over a Dr interface between a plurality DRAs and maintaining PCEF connectivity information for one or more peer DRAs to which each DRA is connected.

公开(公告)号：US20230209657A1

公开(公告)日：2023-06-29

申请号：US18178729

申请日：2023-03-06

Applicant: Cisco Technology, Inc.

Inventor： Irfan Ali ,  Ian McDowell Campbell ,  Ravi Shankar Mantha

IPC: H04W88/16 ,  H04W76/12 ,  H04W76/16 ,  H04W28/02

CPC classification number: H04W88/16 ,  H04W76/12 ,  H04W76/16 ,  H04W28/0268

Abstract: The present technology is directed to establishing a connection between a client device within a 2G or 3G network and 5G core through an interworking function. The present technology can perform establishing a Gn-4G interworking function (IWF) between a client access network and a packet anchor network and performing one or more network functions through the Gn-4G IWF in providing a client of the client access network access to network services through the packet anchor network. The one or more network functions appear as one or more Gateway GPRS Support Node (GGSN) functions from the client access network (e.g., 2G or 3G network). The one or more network functions concurrently appear as one or more S4 Serving GPRS Support Node (SGSN) functions from the packet anchor network (e.g., 4G or 5G network).

公开(公告)号：US11246088B2

公开(公告)日：2022-02-08

申请号：US16845877

申请日：2020-04-10

Applicant: Cisco Technology, Inc.

Inventor： Vimal Srivastava ,  Sri Gundavelli ,  Aeneas Sean Dodd-Noble ,  Irfan Ali ,  Ravi Kiran Guntupalli ,  Ian McDowell Campbell

IPC: H04W48/18 ,  H04W36/00 ,  H04W48/16 ,  H04W80/02 ,  H04L29/08 ,  H04L12/24 ,  H04L29/12 ,  H04W36/16 ,  H04W76/19

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.

公开(公告)号：US11082502B2

公开(公告)日：2021-08-03

申请号：US15666644

申请日：2017-08-02

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Alon Shlomo Bernstein ,  Ian McDowell Campbell ,  John T. Chapman

IPC: H04L29/08 ,  H04L12/24

Abstract: One embodiment is a method including extending a policy server to provide per subscriber policies to a cable modem (CM) and a cable modem termination system (CMTS), receiving, at the policy server, a request for a policy profile from a cable modem termination system (CMTS), accessing a subscriber database to determine the policy profile, and communicating the policy profile to the CMTS. In an example, the policy server is a packet cable multimedia policy server of a cable network.

公开(公告)号：US10938727B2

公开(公告)日：2021-03-02

申请号：US16458829

申请日：2019-07-01

Applicant: Cisco Technology, Inc.

Inventor： Prasannakumar Murugesan ,  Ajeet Pal Singh Gill ,  Aeneas Sean Dodd-Noble ,  David A. Johnson ,  Ian McDowell Campbell

IPC: H04L12/851 ,  H04L12/721 ,  G06F13/12 ,  G06F13/00

Abstract: In accordance with various implementations, a method is performed at a data plane node with one or more processors, non-transitory memory, and a control interface between a network function module associated with the data plane node and a switch associated with the data plane node. The method includes determining whether an offload capability is available for a data flow received at an ingress network interface of the data plane node. The method also includes determining whether the data flow satisfies offload criteria in response to determining that the offload capability is available. The method includes bypassing the network function module associated with the data plane node and providing the data flow to at least one of the switch associated with the data plane node or an egress network interface associated with the data plane node in response to determining the offload capability is available and the offload criteria is satisfied.