公开(公告)号：US20190334775A1

公开(公告)日：2019-10-31

申请号：US16172013

申请日：2018-10-26

Applicant: Cisco Technology, Inc.

Inventor： Amit Ghadge ,  Nithin Chitta ,  Sanjeev Panem Jaya ,  Anand Arun Alshi

IPC: H04L12/24 ,  H04W12/04

Abstract: Various embodiments disclosed herein provide a method for grouping user planes in 4G/5G packet cores to simplify user plane discovery and registration. In some embodiments the method includes detecting a plurality of User Planes (UPs), grouping a first subset of the UPs into a first UP group, in which each UP in the first UP group is associated with a first set of features, and allocating the first UP group to a first network service based on the first set of features associated with the first UP group and a first set of requirements of the first network service. The method further includes grouping a second subset of the plurality of UPs into a second UP group, in which each of the second UP group is associated with a second set of features and allocating the second UP group to a second network service of a plurality of network services.

公开(公告)号：US09635686B2

公开(公告)日：2017-04-25

申请号：US14540082

申请日：2014-11-13

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Paras Jain ,  Nithin Chitta ,  Vimal Srivastava

IPC: H04W4/00 ,  H04W74/04 ,  H04W74/00 ,  H04W40/06 ,  H04W36/00 ,  H04W36/14 ,  H04W36/24 ,  H04W48/18 ,  H04W84/04 ,  H04W84/12

CPC classification number: H04W74/04 ,  H04L12/1407 ,  H04L41/0893 ,  H04M15/66 ,  H04W4/24 ,  H04W36/0033 ,  H04W36/0083 ,  H04W36/14 ,  H04W36/24 ,  H04W40/06 ,  H04W48/18 ,  H04W74/002 ,  H04W84/042 ,  H04W84/12

Abstract: An example method is provided in one example embodiment and may include receiving an indication of a radio access technology (RAT) change for a user equipment (UE); determining availability of a preferred RAT type for a policy related rule associated with the UE, wherein the policy related rule includes, at least in part, the preferred RAT type for one or more service data flows for the UE; and configuring the one or more service data flows for the UE based, at least in part, on a change in availability of the preferred RAT type following the RAT change. In at least one case, the method can include routing downlink packets to the UE using the one or more service data flows for the preferred RAT type if the preferred RAT type is available.

公开(公告)号：US12207125B2

公开(公告)日：2025-01-21

申请号：US18193286

申请日：2023-03-30

Applicant: Cisco Technology, Inc.

Inventor： Nithin Chitta ,  Amit Ghadge ,  Dishant Mukeshbhai Parikh

IPC: H04L47/80 ,  H04L47/20 ,  H04L47/2441 ,  H04L61/256 ,  H04W28/02

Abstract: Presented herein are embodiments that provide mobile edge computing (MEC) with low latency traffic segregation within a packet data network (PDN) using dedicated bearers. Techniques are provided that are performed at an edge user plane entity and a control plane entity to coordinate the directing of low latency traffic over a dedicated bearer broken out at the edge, and to communicate normal latency traffic over a default bearer that is centrally broken out.

公开(公告)号：US20240397412A1

公开(公告)日：2024-11-28

申请号：US18322208

申请日：2023-05-23

Applicant: Cisco Technology, Inc.

Inventor： Somaraju Kaki ,  Nithin Chitta

IPC: H04W48/14 ,  H04W60/04

Abstract: A method, computer system, and computer program product are provided for providing 5G-as-a-Service. A network repository function is queried by a network management function to obtain identifying data for each of a plurality of radio base stations. A ping test is initiated by the network management function and based on the identifying data to be performed between at least one access and mobility management function (AMF) and each of the plurality of radio base stations to determine latencies between the at least one AMF and each of the plurality of radio base stations. A connection is initiated between the at least one AMF and a first radio base station of the plurality of radio base stations based on identifying a lowest latency between the at least one AMF and the first radio base stations.

公开(公告)号：US20200374762A1

公开(公告)日：2020-11-26

申请号：US16991139

申请日：2020-08-12

Applicant: Cisco Technology, Inc.

Inventor： Amit Ghadge ,  Nithin Chitta

IPC: H04W36/00 ,  H04W8/08 ,  H04W36/32 ,  H04W28/02 ,  H04W80/10

Abstract: Techniques that provide low latency traffic segregation to ensure an edge user plane (UP) is not overloaded are described herein in at least one embodiment. In at least one embodiment, a method may include determining offload of low latency traffic of a user equipment (UE) at a mobile network edge, wherein the UE has non-low latency traffic associated with a first packet data network session for an access point name; notifying the UE to request creation of a second packet data network session for the access point name; selecting an edge UP element to handle the low latency traffic for the second packet data network session; creating the second packet data network session at the selected edge UP element; and notifying the UE that second packet data network session is created.

公开(公告)号：US20200145278A1

公开(公告)日：2020-05-07

申请号：US16182958

申请日：2018-11-07

Applicant: Cisco Technology, Inc.

Inventor： Amit Ghadge ,  Nithin Chitta ,  Sanjeev Panem Jaya ,  Anand Arun Alshi

IPC: H04L12/24 ,  H04L12/26

Abstract: In one embodiment, a method is performed. A first user plane entity may be associated with a user plane group comprising a plurality of user plane entities. The first user plane entity may be associated with a second user plane entity. A failure of the second user plane entity may be detected. In response to detecting the failure of the second user plane entity, the first user plane entity may be activated.

公开(公告)号：US12127035B2

公开(公告)日：2024-10-22

申请号：US18491396

申请日：2023-10-20

Applicant: Cisco Technology, Inc.

Inventor： Raghavendar Rao Kota ,  Nithin Chitta ,  Srinivasa R. Irigi

IPC: H04W28/02 ,  H04W28/10 ,  H04W60/00

CPC classification number: H04W28/0289 ,  H04W28/10 ,  H04W60/00

Abstract: Technologies for systems, methods and computer-readable storage media for solving complex distributed congestion in a 5G network by using traffic engineering data to redirect sessions. Specifically, involving anchoring a network node to a User Plane (UP) entity based on traffic engineering data and subscribing to traffic engineering data associated with requested parameters to push particular policies and/or select alternate application functions to correct congestion.

公开(公告)号：US20240276184A1

公开(公告)日：2024-08-15

申请号：US18168183

申请日：2023-02-13

Applicant: Cisco Technology, Inc.

Inventor： Nithin Chitta ,  Rajamathangi Subramanian

IPC: H04W4/24 ,  H04L12/14 ,  H04W8/18

CPC classification number: H04W4/24 ,  H04L12/1407 ,  H04W8/18 ,  H04W76/15 ,  H04W88/06

Abstract: Disclosed herein are systems, methods, and computer-readable media for applying differential charging over user plane for DCNR capable UEs. In one aspect, a method includes receiving a session request at a control plane gateway in association with a dual connectivity attachment request by a user equipment to connect to a network, sending a request for tunnel binding IDs to a Policy and Charging Rules Function (PCRF), wherein each of the tunnel binding IDs is associated with one of different types of network access for the user equipment, receiving the tunnel binding IDs from the PCRF, and programming a user plane with the tunnel binding IDs and corresponding charging rules for the different types of network access, the user equipment being charged for data usage using the charging rules and depending on which of the different types of network access is used by the user equipment to connect to the network.

公开(公告)号：US11902260B2

公开(公告)日：2024-02-13

申请号：US17391199

申请日：2021-08-02

Applicant: Cisco Technology, Inc.

Inventor： Pravin Appaji Ajagekar ,  Ravi Shekhar ,  Nithin Chitta

IPC: H04L9/40 ,  H04L67/141 ,  H04W12/037 ,  H04W12/033

CPC classification number: H04L63/0428 ,  H04L63/029 ,  H04L67/141 ,  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：US11683714B2

公开(公告)日：2023-06-20

申请号：US16532790

申请日：2019-08-06

Applicant: Cisco Technology, Inc.

Inventor： Nithin Chitta ,  Amit Ghadge ,  Dishant Mukeshbhai Parikh

IPC: H04L47/80 ,  H04W28/02 ,  H04L47/2441 ,  H04L47/20 ,  H04L61/256

CPC classification number: H04W28/0252 ,  H04L47/20 ,  H04L47/2441 ,  H04L61/2571 ,  H04W28/0215

Abstract: Presented herein are embodiments that provide mobile edge computing (MEC) with low latency traffic segregation within a packet data network (PDN) using dedicated bearers. Techniques are provided that are performed at an edge user plane entity and a control plane entity to coordinate the directing of low latency traffic over a dedicated bearer broken out at the edge, and to communicate normal latency traffic over a default bearer that is centrally broken out.