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.

公开(公告)号：US20210258771A1

公开(公告)日：2021-08-19

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 ,  H04L29/12

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：US11070974B2

公开(公告)日：2021-07-20

申请号：US16367627

申请日：2019-03-28

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 ,  H04L29/12 ,  H04W84/04 ,  H04W76/10

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：US11005978B2

公开(公告)日：2021-05-11

申请号：US16538120

申请日：2019-08-12

Applicant: Cisco Technology, Inc.

Inventor： Om Prakash Suthar ,  Paul A. Polakos

IPC: H04W28/02 ,  H04L29/06 ,  H04L29/12 ,  H04W76/12 ,  H04L29/08 ,  H04W76/28

Abstract: In one embodiment, a mobile network includes at least one Information Centric Networking (ICN) enabled mobile base station configured to support ICN transport protocol, and at least one ICN enabled evolved packet core (EPC) device configured to support ICN transport protocol, where the ICN enabled EPC device is operative to assign an ICN based identity to a user equipment (UE) according to an attach request, wherein the attach request indicates that the UE supports the ICN transport protocol.

公开(公告)号：US20210076292A1

公开(公告)日：2021-03-11

申请号：US16561634

申请日：2019-09-05

Applicant: Cisco Technology, Inc.

Inventor： Carlos M. Pignataro ,  Om Prakash Suthar ,  Nagendra Kumar Nainar ,  Rajiv Asati

IPC: H04W40/12 ,  H04W24/08 ,  H04W40/24 ,  H04W40/28 ,  H04L12/721 ,  H04L12/707 ,  H04L12/841 ,  H04L12/26

Abstract: Techniques are provided that leverage inband metadata techniques for use in a mobile core network in order to create relevant third generation 3rd Generation Partnership Project (3GPP) control plane interfaces between virtual control plane and virtual user plane elements that can be used to instruct the virtual entities to perform various functions, collect telemetry and other data from the virtual entities and signal maintenance messages between control plane and user plane entities. One control plane interface can be used to perform holistic performance analysis functionalities and identify the better performing path and accordingly use primary path and warm paths for control plane exchanges.

公开(公告)号：US20210045046A1

公开(公告)日：2021-02-11

申请号：US17004794

申请日：2020-08-27

Applicant: Cisco Technology, Inc.

Inventor： Arghya Mukherjee ,  Om Prakash Suthar ,  Yoshitaka Nagami ,  Fei Gao ,  Santanu Dasgupta

IPC: H04W48/16 ,  H04W4/029

Abstract: A broker network may be configured to serve as an intermediary between one or more radio providers and one or more mobile service providers for reservation of remote radio units (RRUs) for use in a virtualized radio access network (vRAN) environment. The broker network may receive, from a mobile network, a message indicating a request for identification of RRUs of at least one radio provider. The broker network may send, to the mobile network, one or more messages including a plurality of identifiers which identify a plurality of RRUs, and a geographic location and capabilities associated with each RRU. After receiving a selection of an RRU, the broker network may send to the RRU a message which triggers communication with a virtualized Distributed Unit (vDU) for a remote configuration of parameters in the selected RRU, so that it may be used to facilitate communication with UEs in the mobile network.

公开(公告)号：US10791507B1

公开(公告)日：2020-09-29

申请号：US16531804

申请日：2019-08-05

Applicant: Cisco Technology, Inc.

Inventor： Arghya Mukherjee ,  Om Prakash Suthar ,  Yoshitaka Nagami ,  Fei Gao ,  Santanu Dasgupta

IPC: H04W76/27 ,  H04B7/0413 ,  H04B7/06 ,  H04W48/16 ,  H04W4/029

Abstract: A broker network may be configured to serve as an intermediary between one or more radio providers and one or more mobile service providers for reservation of remote radio units (RRUs) for use in a virtualized radio access network (vRAN) environment. The broker network may receive, from a mobile network, a message indicating a request for identification of RRUs of at least one radio provider. The broker network may send, to the mobile network, one or more messages including a plurality of identifiers which identify a plurality of RRUs, and a geographic location and capabilities associated with each RRU. After receiving a selection of an RRU, the broker network may send to the RRU a message which triggers communication with a virtualized Distributed Unit (vDU) for a remote configuration of parameters in the selected RRU, so that it may be used to facilitate communication with UEs in the mobile network.

公开(公告)号：US20200264914A1

公开(公告)日：2020-08-20

申请号：US16408634

申请日：2019-05-10

Applicant: Cisco Technology, Inc.

Inventor： Santanu Dasgupta ,  Chandragupta Ganguly ,  Ian Wells ,  Rajiv Asati ,  Om Prakash Suthar ,  Vinod Pandarinathan ,  Ajay Kalambur ,  Yichen Wang ,  John Wei-I Wu

IPC: G06F9/455 ,  H04W76/10 ,  H04L12/24

Abstract: A system is provided that includes one management cluster to manage network function virtualization infrastructure (NFVI) resources lifecycle in more than one edge POD locations, where resources include hardware and/or software, and where software resources lifecycle includes software development, upgrades, downgrades, logging, monitoring etc. Methods are provided for decoupling storage from compute and network functions in each virtual machine (VM)-based NFVI deployment location and moving it to a centralized location. Centralized storage could simultaneously interact with more than one edge PODs, and the security is built-in with periodic key rotation. Methods are provided for increasing NFVI system viability by dedicating (fencing) CPU core pairs for specific controller operations and workload operations, and sharing the CPU cores for specific tasks.

公开(公告)号：US20200228605A1

公开(公告)日：2020-07-16

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 ,  H04L29/06 ,  H04W12/08

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：US20200221299A1

公开(公告)日：2020-07-09

申请号：US16546826

申请日：2019-08-21

Applicant: Cisco Technology, Inc.

Inventor： Om Prakash Suthar ,  Rajiv Asati ,  Santanu Dasgupta

IPC: H04W12/06 ,  H04W12/04 ,  H04W60/00 ,  H04W76/25 ,  H04L29/06 ,  G06F16/182

Abstract: Blockchain technology is used to provide distributed authentication, entitlements and trust among different virtual Radio Access Network (vRAN) elements. An enterprise blockchain with interfaces enables multi-vendor vRAN deployment across multiple service providers. In another embodiment, a method is provided for authenticating entities in a virtualized radio access network to ensure various entitles are in fact entitled to participate in various radio access network operations.