公开(公告)号：US11564081B1

公开(公告)日：2023-01-24

申请号：US17368091

申请日：2021-07-06

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Indermeet Singh Gandhi ,  Arun G. Khanna ,  Timothy Peter Stammers

IPC: H04W8/20 ,  H04W60/00 ,  H04W8/26 ,  H04W84/04

Abstract: A method is performed at a server that manages embedded subscriber identity module (eSIM) profiles. The method includes, when a user equipment that belongs to a global enterprise network relocates from a first locale to a second locale in which a first private network and a second private network of the global enterprise network are located, wherein the user equipment includes a locale-specific first eSIM profile that includes a first non-public network identifier of the first private network, receiving, from the user equipment over a network in the second locale, information that indicates the user equipment is in the second locale. The method further includes identifying the second private network based on the information, and generating a locale-specific second eSIM profile that includes a second non-public network identifier for the second private network. The method includes configuring the user equipment with the locale-specific second eSIM profile.

公开(公告)号：US20220345443A1

公开(公告)日：2022-10-27

申请号：US17864145

申请日：2022-07-13

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Vimal Srivastava ,  Indermeet Singh Gandhi ,  Timothy Peter Stammers

IPC: H04L61/4511 ,  H04W24/04

Abstract: In one illustrative example, a user plane function (UPF) configured for use in a private 5G network of an enterprise may receive, from a user device, a domain name system (DNS) query associated with an application; send, to a DNS server, one or more corresponding DNS queries based on the DNS query; receive, from the DNS server, one or more DNS query responses which include an IP address and metadata including an application identifier for the application; and send, to a control plane function, a message for reporting which includes the application identifier. In response, a dedicated Quality of Service (QoS) Flow may be created for traffic for the application according to a selected QoS policy associated with the application identifier. For obtaining the metadata, the UPF may interact with a DNS server configured with Extension mechanisms for DNS (EDNS) or a DNS as Authoritative Source (DNS-AS) mechanism.

公开(公告)号：US11483279B2

公开(公告)日：2022-10-25

申请号：US16850081

申请日：2020-04-16

Applicant: Cisco Technology, Inc.

Inventor： Mark Grayson ,  Oliver James Bull ,  Louis Gwyn Samuel ,  Srinath Gundavelli

IPC: H04L45/24 ,  H04L47/20 ,  H04L61/4511 ,  G06F9/54 ,  H04L41/0893 ,  H04L69/326

Abstract: Techniques are described to provide multipath mobility via Domain Name System-as-an-Authoritative Source (DNS-AS) techniques. In one example, a method includes obtaining, by a multipath policy decision element, a plurality of multipath policy recommendations for an application, wherein the plurality of multipath policy recommendations are obtained from one or more multipath policy recommendation elements; combining the plurality of multipath policy recommendations to generate a policy enforcement decision, wherein the policy enforcement decision identifies, at least in part, one or more network paths that are to be utilized for one or more packet flows associated with the application, wherein each of the one or more network paths is associated with an access type; and enforcing the policy enforcement decision for one or more packet flows associated with the application.

公开(公告)号：US20220330112A1

公开(公告)日：2022-10-13

申请号：US17225426

申请日：2021-04-08

Applicant: Cisco Technology, Inc.

Inventor： Chinari Santosh Kumar Patra ,  Srinath Gundavelli ,  Rakesh Sai Srirambhatla

IPC: H04W36/00 ,  H04L29/12 ,  H04W12/06 ,  H04W76/11

Abstract: Presented herein are techniques to facilitate enforcing unique handover trigger thresholds for user equipment (UE) based on UE identity and/or UE group type. In one instance, a method is provided that may include provisioning a plurality of handover profiles for a plurality of user equipment for a mobile network in which each corresponding handover profile includes a profile identifier and one or more handover thresholds. The method may further include determining that a particular user equipment seeks a connection to the mobile network; identifying a particular handover profile for the particular user equipment, wherein the particular handover profile includes a particular profile identifier; providing the particular profile identifier to a radio access network node of the mobile network; identifying one or more particular handover thresholds for the particular user equipment based on the particular profile identifier; and providing one or more particular handover thresholds to the particular user equipment.

公开(公告)号：US20220322198A1

公开(公告)日：2022-10-06

申请号：US17846482

申请日：2022-06-22

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Indermeet Gandhi ,  Shree Murthy ,  Malcolm Muir Smith ,  Jerome Henry

IPC: H04W36/32 ,  H04W36/30

Abstract: This disclosure describes techniques for selecting network protocols using heatmaps. For instance, a system may receive radio frequency information from one or more sources located within an environment. The system may then generate heatmaps using the radio frequency information, where the heatmaps represent characteristics associated with different network protocols. The characteristics may include signal strengths, throughputs, data packet drop rates, data packet retry rates, and/or the like for various locations within the environment. A user device may then receive the heatmaps from the system. Using a location of the user device and the heatmaps, the user device may determine to communicate using a network protocol from the different network protocols. The user device may then establish a connection using the network protocol.

公开(公告)号：US11445344B2

公开(公告)日：2022-09-13

申请号：US17015258

申请日：2020-09-09

Applicant: Cisco Technology, Inc.

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

IPC: H04W4/50 ,  H04W8/18 ,  H04W76/10 ,  H04W76/30

Abstract: A Network Exposure Function (NEF) relays a trigger from a remote application function to a user device and causes the user device to switch between mutually exclusive network slices. The NEF stores a mapping associating device modes with network slices. The NEF also determines that a user device is operating in a first device mode using a first network slice. The NEF obtains a trigger from the remote application function identifying the user device and a second device mode. The NEF determines that the second device mode is associated with a second network slice that is mutually exclusive to the first network slice. The NEF provides a notification to the user device, causing the user device to end a first data session on the first network slice and to initiate a second data session on the second network slice.

公开(公告)号：US11444914B2

公开(公告)日：2022-09-13

申请号：US17132069

申请日：2020-12-23

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Vimal Srivastava ,  Indermeet Singh Gandhi ,  Timothy Peter Stammers

IPC: H04L61/4511 ,  H04W24/04 ,  H04W84/04

Abstract: In one illustrative example, a user plane function (UPF) configured for use in a private 5G network of an enterprise may receive, from a user device, a domain name system (DNS) query associated with an application; send, to a DNS server, one or more corresponding DNS queries based on the DNS query; receive, from the DNS server, one or more DNS query responses which include an IP address and metadata including an application identifier for the application; and send, to a control plane function, a message for reporting which includes the application identifier. In response, a dedicated Quality of Service (QoS) Flow may be created for traffic for the application according to a selected QoS policy associated with the application identifier. For obtaining the metadata, the UPF may interact with a DNS server configured with Extension mechanisms for DNS (EDNS) or a DNS as Authoritative Source (DNS-AS) mechanism.

公开(公告)号：US20220225175A1

公开(公告)日：2022-07-14

申请号：US17542826

申请日：2021-12-06

Applicant: Cisco Technology, Inc.

Inventor： Vimal Srivastava ,  Srinath Gundavelli ,  Nagendra Kumar Nainar ,  Carlos M. Pignataro ,  Timothy Peter Stammers

IPC: H04W36/00 ,  H04L69/22 ,  H04W28/24 ,  H04W36/08 ,  H04W40/02

Abstract: In one illustrative example, a user plane (UP) entity for use in a mobile network may receive a data packet from a user equipment (UE) operative to communicate in one or more sessions via a serving base station (BS) (e.g. eNB or gNB) of the mobile network. The UP entity may detect, in a header (e.g. SRH) of the data packet, an identifier indicating a new serving BS or session of the UE. The identifier may be UE- or BS-added data (e.g. iOAM data) that is inserted in the header by the UE or BS. In response, the UP entity may cause a message to be sent to an analytics function (e.g. a NWDAF) to perform analytics for session or flow migration for the UE.

公开(公告)号：US20220217814A1

公开(公告)日：2022-07-07

申请号：US17142914

申请日：2021-01-06

Applicant: Cisco Technology, Inc.

Inventor： Abhishek Dhammawat ,  Mahesh Satyanarayana ,  Srinath Gundavelli

IPC: H04W80/10 ,  H04W76/11 ,  H04W76/12 ,  H04L29/08

Abstract: A network function is configured to initiate a bulk session cleanup with a single release request. The network function detects a configuration change to a wireless network system that affects multiple user sessions for multiple user devices. The network function generates a single bulk session release request identifying the affected user sessions and provides the single bulk session release request to at least one other network function responsible for the user sessions.

公开(公告)号：US20220200948A1

公开(公告)日：2022-06-23

申请号：US17132069

申请日：2020-12-23

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Vimal Srivastava ,  Indermeet Singh Gandhi ,  Timothy Peter Stammers

IPC: H04L29/12 ,  H04W24/04

Abstract: In one illustrative example, a user plane function (UPF) configured for use in a private 5G network of an enterprise may receive, from a user device, a domain name system (DNS) query associated with an application; send, to a DNS server, one or more corresponding DNS queries based on the DNS query; receive, from the DNS server, one or more DNS query responses which include an IP address and metadata including an application identifier for the application; and send, to a control plane function, a message for reporting which includes the application identifier. In response, a dedicated Quality of Service (QoS) Flow may be created for traffic for the application according to a selected QoS policy associated with the application identifier. For obtaining the metadata, the UPF may interact with a DNS server configured with Extension mechanisms for DNS (EDNS) or a DNS as Authoritative Source (DNS-AS) mechanism.