公开(公告)号：US10079767B2

公开(公告)日：2018-09-18

申请号：US15181159

申请日：2016-06-13

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Hendrikus G. P. Bosch ,  Jeffrey Napper ,  Alessandro Duminuco ,  Humberto J. La Roche ,  Surendra M. Kumar ,  Aeneas Sean Dodd-Noble ,  Anil Kumar Chandrupatla

IPC: H04L12/851 ,  H04L12/801 ,  H04L12/803 ,  H04L29/08 ,  H04L12/713

CPC classification number: H04L47/2441 ,  H04L45/586 ,  H04L45/64 ,  H04L47/125 ,  H04L47/14 ,  H04L67/1076 ,  H04L67/2842

Abstract: A method is provided in one example embodiment and includes receiving at a network element a packet associated with a flow and determining whether a flow cache of the network element includes an entry for the flow indicating a classification for the flow. The method further includes, if the network element flow cache does not include an entry for the flow, punting the packet over a default path to a classifying service function, in which the classifying service function classifies the flow and determines a control plane service function for handling the flow, and receiving from the classifying service function a service path identifier (“SPI”) of a service path leading to the determined control plane service function. The flow is subsequently offloaded from the classifying service function to the network element.

公开(公告)号：US20150365789A1

公开(公告)日：2015-12-17

申请号：US14572268

申请日：2014-12-16

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Nirav Salot ,  Sebastian Speicher ,  Aeneas Sean Dodd-Noble ,  Sridhar Bhaskaran

IPC: H04W4/02

CPC classification number: H04W4/02

Abstract: An example method is provided in one example embodiment and includes receiving, by a user equipment device, a list including at least one location identifier associated with an area for location reporting and an area identifier identifying the area for location reporting. The method further includes receiving a location identifier broadcast by a wireless network element, and determining whether the broadcast location identifier matches the at least one location identifier associated with the area for location reporting. The method further includes sending a location reporting message by the user equipment device to a first network node when it is determined that the broadcast location identifier matches the at least one location identifier associated with the area for location reporting. The location reporting message is indicative of the user equipment device either entering or exiting the area for location reporting.

Abstract translation: 在一个示例实施例中提供了示例性方法，并且包括由用户设备设备接收包括与用于位置报告的区域相关联的至少一个位置标识符的列表以及标识用于位置报告的区域的区域标识符。 该方法还包括接收由无线网元广播的位置标识符，以及确定广播位置标识符是否与与用于位置报告的区域相关联的至少一个位置标识符匹配。 当确定广播位置标识符与与用于位置报告的区域相关联的至少一个位置标识符匹配时，该方法还包括由用户设备设备向第一网络节点发送位置报告消息。 位置报告消息指示用户设备设备进入或退出该区域以进行位置报告。

公开(公告)号：US12193078B2

公开(公告)日：2025-01-07

申请号：US17480488

申请日：2021-09-21

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Aeneas Sean Dodd-Noble

IPC: H04W76/10 ,  H04W16/02 ,  H04W80/06

Abstract: Techniques are described herein for network slice support of respective transport protocols. In one example, a session management function obtains, from a user equipment, a request for a network slice identifier in a network that includes a plurality of network slices each configured to support a respective transport protocol. In response to the request, the session management function identifies a first transport protocol of the respective transport protocols by which the user equipment is to communicate. Based on the first transport protocol, the session management function identifies a first network slice of the plurality of network slices by which the user equipment is to communicate. The first network slice is configured to support the first transport protocol. The session management function provides the network slice identifier to the user equipment. The network slice identifier corresponds to the first network slice.

公开(公告)号：US11729608B2

公开(公告)日：2023-08-15

申请号：US17306330

申请日：2021-05-03

Applicant: Cisco Technology, Inc.

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

IPC: H04W8/26 ,  H04W76/12 ,  H04W4/02 ,  H04W8/08 ,  H04L61/4511 ,  H04W84/04 ,  H04W76/10

CPC classification number: H04W8/26 ,  H04L61/4511 ,  H04W4/025 ,  H04W8/08 ,  H04W76/12 ,  H04W76/10 ,  H04W84/042

Abstract: A solution for selecting an optimal user Plane entity (with Control and User Plane Separation (CUPS)) per UE during seamless roaming. In one embodiment, a method is provide that is performed by a control plane entity in a mobile core network that supports inter public land mobile network (PLMN) roaming among two or more PLMNs. The method includes obtaining a create session request from an entity in a second PLMN to which a user equipment has roamed from a first PLMN; selecting a particular user plane entity among a plurality of user plane entities based on one or more user equipment related parameters; and establishing a session with the particular user plane entity to serve user plane traffic in the mobile core network for the user equipment.

公开(公告)号：US11711691B2

公开(公告)日：2023-07-25

申请号：US17112264

申请日：2020-12-04

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Vimal Srivastava ,  Warren Scott Wainner ,  Aeneas Sean Dodd-Noble

IPC: H04W4/00 ,  H04W12/06 ,  H04W76/11 ,  H04W76/15 ,  H04W28/02

CPC classification number: H04W12/068 ,  H04W28/0273 ,  H04W76/11 ,  H04W76/15

Abstract: In one example, an Access Point (AP) configures a first mapping of a first cellular network connection to a first local access network group, and further configures a second mapping of a second cellular network connection to a second local access network group. The AP determines whether a user device is authorized to use the first cellular network connection or the second cellular network connection. If the user device is authorized to use the first cellular network connection, the AP associates, for the user device, a first user device identifier with the first local access network group. If the user device is authorized to use the second cellular network connection, the AP associates, for the user device, a second user device identifier with the second local access network group.

公开(公告)号：US11374900B2

公开(公告)日：2022-06-28

申请号：US17079836

申请日：2020-10-26

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：US11356513B2

公开(公告)日：2022-06-07

申请号：US17024465

申请日：2020-09-17

Applicant: Cisco Technology, Inc.

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

IPC: H04L67/14 ,  H04W12/08 ,  H04L9/40 ,  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：US11223705B2

公开(公告)日：2022-01-11

申请号：US16810994

申请日：2020-03-06

Applicant: Cisco Technology, Inc.

Inventor： Raghavendra Vidyashankar Suryanarayanarao ,  Tomonobu Okada ,  Pravin Appaji Ajagekar ,  Aeneas Sean Dodd-Noble

IPC: H04L29/06 ,  H04W28/06

Abstract: Presented herein are techniques to facilitate dynamic negotiation and compression of Packet Forwarding Control Protocol (PFCP) messages in a mobile networking environment. In one example, a method includes identifying, by a function, a negotiated compression algorithm to utilize for compressing one or more Packet Forwarding Control Protocol (PFCP) messages; determining whether a payload for a particular PFCP message is to be compressed based on at least one of system resources of the function and a size of the payload; based on determining that the payload is to be compressed, compressing the payload utilizing the negotiated compression algorithm to generate a compressed PFCP message; and setting a compression indication in a header of the compressed PFCP message.

公开(公告)号：US11212850B2

公开(公告)日：2021-12-28

申请号：US16560204

申请日：2019-09-04

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Aeneas Sean Dodd-Noble

IPC: H04B7/00 ,  H04W76/10 ,  H04W16/02 ,  H04W80/06

Abstract: Techniques are described herein for network slice support of respective transport protocols. In one example, a session management function obtains, from a user equipment, a request for a network slice identifier in a network that includes a plurality of network slices each configured to support a respective transport protocol. In response to the request, the session management function identifies a first transport protocol of the respective transport protocols by which the user equipment is to communicate. Based on the first transport protocol, the session management function identifies a first network slice of the plurality of network slices by which the user equipment is to communicate. The first network slice is configured to support the first transport protocol. The session management function provides the network slice identifier to the user equipment. The network slice identifier corresponds to the first network slice.

公开(公告)号：US20210258846A1

公开(公告)日：2021-08-19

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: H04W36/12

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.