公开(公告)号：US20160135222A1

公开(公告)日：2016-05-12

申请号：US14540082

申请日：2014-11-13

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Paras Jain ,  Nithin Chitta ,  Vimal Srivastava

IPC: H04W74/04 ,  H04W40/06 ,  H04W74/00

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：US09294982B2

公开(公告)日：2016-03-22

申请号：US14165248

申请日：2014-01-27

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Vimal Srivastava ,  Rajeev Koodli ,  Armin Kasum

IPC: H04W36/22 ,  H04W36/00 ,  H04W76/02 ,  H04W88/06 ,  H04W36/14

CPC classification number: H04W36/22 ,  H04W36/0011 ,  H04W36/14 ,  H04W76/16 ,  H04W88/06

Abstract: An example method is provided in one example embodiment and includes establishing a mobility context associated with a user equipment that includes a designation of a first radio access network as a primary access network and a second radio access network as a secondary access network. The method further includes defining an initial value for a data count variable representative of a number of consecutive uplink packets associated with the user equipment received over the first radio access network. The method further includes receiving at least one first uplink packet associated with the user equipment from at least one of the first radio access network and the second radio access network, modifying a value of the data count variable when the first uplink packet is received over the second radio access network, setting the value of the data count variable to the initial value of the data count variable when the first uplink packet is received over the first radio access network, and modifying the mobility context if the value of the data count variable is equal to a predetermined value.

Abstract translation: 在一个示例实施例中提供了示例性方法，并且包括建立与包括作为主接入网络的第一无线电接入网络的指定和作为辅助接入网络的第二无线电接入网络的用户设备相关联的移动性上下文。 该方法还包括定义表示与通过第一无线电接入网接收的用户设备相关联的连续上行链路分组的数量的数据计数变量的初始值。 该方法还包括从第一无线电接入网络和第二无线电接入网络中的至少一个接收与用户设备相关联的至少一个第一上行链路分组，当在第一无线接入网络和第二无线电接入网络上接收到第一上行链路分组时修改数据计数变量的值 第二无线电接入网络，当通过第一无线电接入网络接收到第一上行链路分组时，将数据计数变量的值设置为数据计数变量的初始值，如果数据计数变量的值为 等于预定值。

公开(公告)号：US20250133527A1

公开(公告)日：2025-04-24

申请号：US18490247

申请日：2023-10-19

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Dishant Mukesh Parikh ,  Vimal Srivastava

IPC: H04W60/04 ,  H04W48/18

Abstract: Provided herein are techniques to facilitate network slice service continuity in a mobile network environment. In one example, a method may include for a registration request involving a user equipment (UE), obtaining, by an Access and Mobility Management Function (AMF), subscription information identifying primary network slices backup network slices to which the UE is subscribed in which each of the primary network slices and the backup network slices are active network slices capable of actively handling sessions for multiple UEs. The method may further include determining whether there is registration capacity for the UE with each of the network slices with which the UE is allowed registration. Based on the determining that there is registration capacity for registration of the UE, the AMF can transmit a registration response to the UE that indicating registration with the first primary network slice and the first backup network slice is accepted.

公开(公告)号：US12177929B2

公开(公告)日：2024-12-24

申请号：US17833334

申请日：2022-06-06

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Vimal Srivastava ,  Timothy Peter Stammers ,  Ravi Kiran Guntupalli

IPC: H04W76/00 ,  H04W60/04 ,  H04W76/10 ,  H04W76/30

Abstract: Presented herein are techniques to provide a network-initiated group disconnect for wireless devices belonging to one or more device group(s). In one example, a method may include determining, by a control element of a network, that at least one device group is to be disconnected from the network, wherein the at least one device group comprises a plurality of wireless devices connected to the network; identifying one or more access network radios through which the plurality of wireless devices are connected to the network; and triggering a disconnect command for the at least one device group to be broadcast from each of the one or more access network radios to trigger the plurality of wireless devices to disconnect from the network.

公开(公告)号：US20240306256A1

公开(公告)日：2024-09-12

申请号：US18668568

申请日：2024-05-20

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Vimal Srivastava ,  Ravi Kiran Guntupalli

IPC: H04W80/10 ,  H04L67/141 ,  H04W4/50 ,  H04W40/02 ,  H04W76/10

CPC classification number: H04W80/10 ,  H04L67/141 ,  H04W4/50 ,  H04W40/02 ,  H04W76/10

Abstract: Techniques are provided for operator specific customization of a network service configuration. In some embodiments, an operator defines a mapping between an application executing on a user equipment (UE) and a network service configuration. In some embodiments, the network service configuration indicates whether the application is to be supported via a UPF instance located within the core network or deployed at a network edge. The mapping is then provided to the UE, and passed back to the core network, for example, when the UE establishes a connection on behalf of the UE application. The core network then supports the UE application consistent with the configuration specified by the mapping.

公开(公告)号：US12082307B2

公开(公告)日：2024-09-03

申请号：US17464158

申请日：2021-09-01

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Vimal Srivastava ,  Ravi Kiran Guntupalli

IPC: H04W80/10 ,  H04L67/141 ,  H04W4/50 ,  H04W40/02 ,  H04W76/10

CPC classification number: H04W80/10 ,  H04L67/141 ,  H04W4/50 ,  H04W40/02 ,  H04W76/10

Abstract: Techniques are provided for operator specific customization of a network service configuration. In some embodiments, an operator defines a mapping between an application executing on a user equipment (UE) and a network service configuration. In some embodiments, the network service configuration indicates whether the application is to be supported via a UPF instance located within the core network or deployed at a network edge. The mapping is then provided to the UE, and passed back to the core network, for example, when the UE establishes a connection on behalf of the UE application. The core network then supports the UE application consistent with the configuration specified by the mapping.

公开(公告)号：US12015917B2

公开(公告)日：2024-06-18

申请号：US18358569

申请日：2023-07-25

Applicant: Cisco Technology, Inc.

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

IPC: H04W12/06 ,  H04W12/04 ,  H04W84/04

CPC classification number: H04W12/06 ,  H04W12/04 ,  H04W84/042

Abstract: Presented herein are techniques to facilitate delivering standalone non-public network (SNPN) credentials from an enterprise authentication server to a user equipment (UE) using an Extensible Authentication Protocol (EAP) process. In one example, a method may include determining, by an authentication server of an enterprise, that a UE for the enterprise is to receive credentials to enable the UE to connect to a SNPN of the enterprise in which the determining is performed based, at least in part, on connection of the UE to an access network that is different than the SNPN for the enterprise; and performing an authentication process with the UE by the authentication server in which the authentication process includes providing the credentials to the UE via a first authentication message and obtaining confirmation from the UE via a second authentication message that indicates successful provisioning of the credentials for the UE.

公开(公告)号：US20240172046A1

公开(公告)日：2024-05-23

申请号：US18183400

申请日：2023-03-14

Applicant: Cisco Technology, Inc.

Inventor： Vimal Srivastava ,  Sri Gundavelli

IPC: H04L1/22 ,  H04L5/00 ,  H04L69/22 ,  H04W28/08

CPC classification number: H04L1/22 ,  H04L5/0055 ,  H04L69/22 ,  H04W28/0925

Abstract: A system and method are provided to selectively increase the reliability for transmission of select data packets that are determined to be important or critical. When the data packets are PDUs arranged in PDU-SETs, a user plane function (UPF) receives the PDU-SETs from a content server, and, based on header information, e.g., the UPF filters the PDU-SETs according to respective reliability levels. For PDU-SETs in the highest reliability level, a manner of transmitting the PDU-SETs is modified to increase reliability of the transmission for at least part of the transmission path. For example, the redundancy of the PDUs in the PDU-SETs can be increased for one or more legs of the transmission path by generating duplicates of the PDUs, which are transmitted together with the original PDUs. Further, reliability can be increased for respective legs by transmitting the PDUs using an acknowledgement mode.

公开(公告)号：US20240172037A1

公开(公告)日：2024-05-23

申请号：US18471087

申请日：2023-09-20

Applicant: Cisco Technology, Inc.

Inventor： Vimal Srivastava ,  Sri Gundavelli

IPC: H04W28/02

CPC classification number: H04W28/0268

Abstract: Disclosed herein are systems, methods, and computer-readable media for generating Access Traffic Steering, Switching and Splitting (ATSSS) rules specific to different frame types of a flow, providing the ATSSS rules to a user plane function (UPF) so that the UPF detects Quality of Service (QOS) flows based on the different frame types of the flow, and transporting the different frame types of the flow on different access standards based on the ATSSS rules.

公开(公告)号：US11910491B2

公开(公告)日：2024-02-20

申请号：US17143625

申请日：2021-01-07

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Sangram Kishore Lakkaraju ,  Vimal Srivastava ,  Oliver James Bull

IPC: H04W88/16 ,  H04W36/14 ,  H04W76/12 ,  H04W80/04

CPC classification number: H04W88/16 ,  H04W36/14 ,  H04W76/12 ,  H04W80/04

Abstract: A first data plane is established between a user equipment device and a gateway device, wherein the user equipment device comprises a 3rd Generation Partnership Project (3GPP) user equipment device, and wherein the first data plane comprises a 3GPP data plane. A second data plane is established between the gateway device and an anchor device, wherein the second data plane comprises a Proxy Mobile Internet Protocol version 6 (PMIPv6) data plane. Mobility management is performed for the user equipment device via communications between the gateway device and the anchor device.