公开(公告)号：US20220182826A1

公开(公告)日：2022-06-09

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: H04W12/06 ,  H04W28/02 ,  H04W76/15 ,  H04W76/11

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：US20220078590A1

公开(公告)日：2022-03-10

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 ,  H04W76/30 ,  H04W76/10

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：US11234182B1

公开(公告)日：2022-01-25

申请号：US16928471

申请日：2020-07-14

Applicant: Cisco Technology, Inc.

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

IPC: H04W4/00 ,  H04W40/36 ,  H04W36/08 ,  H04W68/00 ,  H04W72/12 ,  H04W76/12 ,  H04W76/11 ,  H04W60/00

Abstract: Techniques are provided for downlink packet replication to support handovers. In one example, downlink packet replication occurs on a fabric node in an S1AP handover scenario. In another example, downlink packet replication occurs on a source Access Point (AP) using a target AP as a secondary AP in an S1AP handover scenario. In yet another example, downlink packet replication occurs on a source AP using packet encapsulation in an S1AP handover scenario. In still another example, downlink packet replication occurs on a source AP in an X2 handover scenario. Similar techniques are provided for any suitable telecommunications/cellular technology.

公开(公告)号：US11202236B2

公开(公告)日：2021-12-14

申请号：US17088030

申请日：2020-11-03

Applicant: Cisco Technology, Inc.

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

IPC: H04W36/00 ,  H04L29/06 ,  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：US20210219261A1

公开(公告)日：2021-07-15

申请号：US16743258

申请日：2020-01-15

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Sangram Kishore Lakkaraju ,  Louis Gwyn Samuel ,  Timothy Peter Stammers ,  Alberto Rodriguez Natal ,  Fabio R. Maino

IPC: H04W68/00 ,  H04W52/02

Abstract: In one example, a control plane entity obtains an indication that a User Equipment (UE) has entered an idle mode. The control plane entity sets a routing locator corresponding to the UE to cause the control plane entity to trigger a paging request toward the UE to prompt the UE to transition from the idle mode when a first network node obtains a downlink packet destined for the UE. The control plane entity obtains a notification that the first network node has obtained the downlink packet and initiates the paging request toward the UE. The control plane entity updates the routing locator corresponding to the UE to cause the first network node to transmit further downlink packets destined for the UE toward a second network node configured to handle traffic on behalf of the UE.

公开(公告)号：US11050746B2

公开(公告)日：2021-06-29

申请号：US16260455

申请日：2019-01-29

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Shree N. Murthy ,  Pradeep Kumar Kathail ,  Brian Weis

IPC: H04L29/06 ,  H04L12/851 ,  H04W80/02

Abstract: A method is provided to anonymize the media access control (MAC) address of a client device. The method involves generating a plurality of media access control (MAC) addresses for use by a client device in a network. Policies are defined that determine which one of the plurality of MAC addresses is to be used by the client device. The plurality of MAC addresses allocated for use by the client device are registered with a management entity in the network.

公开(公告)号：US20210195400A1

公开(公告)日：2021-06-24

申请号：US17192293

申请日：2021-03-04

Applicant: Cisco Technology, Inc.

Inventor： Vimal Srivastava ,  Indermeet Singh Gandhi ,  Sudhir Kumar Jain ,  Srinath Gundavelli

IPC: H04W8/08 ,  H04W48/00 ,  H04W8/26 ,  H04W60/00

Abstract: A Radio Access Network (RAN) element provides an internet indication to a User Equipment (UE) to enable the UE to quickly obtain internet access. The RAN element determines that the RAN element is connected to at least one gateway that provides public internet access, and broadcasts an internet indication. The RAN element determines that the UE has requested public internet access via the RAN element and provides the UE with public internet access.

公开(公告)号：US20210185540A1

公开(公告)日：2021-06-17

申请号：US16713181

申请日：2019-12-13

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Indermeet Singh Gandhi ,  Vimal Srivastava ,  Sudhir Kumar Jain

IPC: H04W16/14 ,  H04W12/06 ,  H04L29/12

Abstract: Methods are provided for extending sponsored Wi-Fi guest access capability to other enterprise tools and/or access technologies such as private access networks including private LTE and 5G networks. The methods include a controller detecting a user equipment (UE) that is connected to a guest access service provided by a wireless local access network (WLAN) and generating a profile for the guest access service. The methods further include the controller providing, to the UE, the profile to cause the UE to connect to the guest access service provided by another access network.

公开(公告)号：US20210152513A1

公开(公告)日：2021-05-20

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: H04L29/12 ,  H04L12/707 ,  H04L12/813 ,  H04L12/24 ,  H04L29/08 ,  G06F9/54

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：US11006328B2

公开(公告)日：2021-05-11

申请号：US16458694

申请日：2019-07-01

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Sangram Kishore Lakkaraju ,  Timothy Peter Stammers

IPC: H04W36/00 ,  H04L12/721 ,  H04L12/911 ,  H04W36/02

Abstract: End marker functionality may be provided in mobile networks having mobile user planes configured with segment routing for IPv6 (SRv6), especially suitable for 5G network migration. For example, a base station may receive an SRv6 control message from a user plane function (UPF) which carries data traffic of a data session for the UE. The base station may perform a function associated with a segment identifier (SID) identified in a segment routing header (SRH) of the SRv6 control message. The function may be an end marker handling function associated with an end marker SID. Performing the end marker handling function may cause the base station to generate a tunneling protocol message (e.g. according to GPRS tunneling protocol or GTP) comprising an end marker message and send the tunneling protocol message comprising the end marker message for receipt by the target base station.