公开(公告)号：US20190289651A1

公开(公告)日：2019-09-19

申请号：US16430543

申请日：2019-06-04

Applicant: Cisco Technology, Inc.

Inventor： Sangram Kishore Lakkaraju ,  Vimal Srivastava ,  Vivek Pise ,  Srinath Gundavelli

IPC: H04W76/12 ,  H04W76/11 ,  H04W88/06 ,  H04L12/46

Abstract: In one implementation, the method comprises, in response to obtaining a request to associate an electronic device with the one or more WLAN termination nodes: generating, between a base station and a networking device, a control link based on a first identifier associated with the base station; generating, between the networking device and a first WLAN termination node, a control link based on a second identifier that corresponds to a pseudonym for the base station; and associating the first and second identifiers in a control table. The method further comprises: instantiating, between the base station and the networking device, a first data tunnel associated with a first tunneling protocol; instantiating, between the networking device and the first WLAN termination node, a second data tunnel associated with a second tunneling protocol; and associating the first and second data tunnels.

公开(公告)号：US09936438B2

公开(公告)日：2018-04-03

申请号：US15202161

申请日：2016-07-05

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Paras Jain ,  Vimal Srivastava ,  Chitresh Yadav ,  Ravi K. Guntupalli

IPC: H04B7/00 ,  H04W40/24 ,  H04L29/08 ,  H04L29/06 ,  H04W76/02 ,  H04W74/00 ,  H04L12/741 ,  H04L29/12 ,  H04W4/02 ,  H04W8/04 ,  H04W72/04 ,  H04W80/10 ,  H04W88/02 ,  H04W88/08 ,  H04W88/16

CPC classification number: H04W40/248 ,  H04L45/745 ,  H04L61/203 ,  H04L67/14 ,  H04L69/28 ,  H04W4/025 ,  H04W8/04 ,  H04W72/0493 ,  H04W74/004 ,  H04W76/18 ,  H04W80/10 ,  H04W88/02 ,  H04W88/08 ,  H04W88/16

Abstract: An example method is provided in one example embodiment and may include receiving a session request for a user equipment (UE) at a node, wherein the session request includes a timestamp for the UE and a retry count; determining if the session request is a stray session request; and maintaining session information for an existing session for the UE at the node if the session request is a stray session request. The method can include identifying the received session request as a stray request if the timestamp received in the request is less than a timestamp stored for an existing session for the UE. The method can also include identifying the received request as a stray request if the timestamp received is equal to the timestamp stored for the existing session and if the retry count received is less than or equal to a retry count stored for the session.

公开(公告)号：US09801227B2

公开(公告)日：2017-10-24

申请号：US14288467

申请日：2014-05-28

Applicant: Cisco Technology, Inc.

Inventor： Paras Jain ,  Vimal Srivastava ,  Chitresh Yadav ,  Pankaj Tripathi

IPC: H04W4/00 ,  H04W76/02 ,  H04W28/02 ,  H04L29/06 ,  H04L12/825 ,  H04L12/801

CPC classification number: H04W76/027 ,  H04L47/12 ,  H04L47/266 ,  H04L65/104 ,  H04L65/1069 ,  H04L65/80 ,  H04W28/0247 ,  H04W28/0252 ,  H04W76/18

Abstract: The present disclosure is directed at systems, methods and media for providing bearer call-back services for bearers that have been rejected or pre-empted by a network apparatus in a core network. In some embodiments, if a network apparatus enters a state in which it becomes necessary to reject or pre-empt a bearer associated with a user equipment (UE) (e.g., due to load conditions in a radio access network, the core network, or an application server), the network apparatus can send to the UE a call-back message when the network apparatus exits the state that precipitated the bearer rejection or pre-emption. By sending a call-back message, the network apparatus can save the UE from multiple unsuccessful attempts to establish a bearer, or from waiting an unnecessarily long time before establishing a bearer.

公开(公告)号：US20250088952A1

公开(公告)日：2025-03-13

申请号：US18463057

申请日：2023-09-07

Applicant: Cisco Technology, Inc.

Inventor： Vimal Srivastava ,  Sri Gundavelli ,  Ravi Kiran Guntupalli

IPC: H04W48/18 ,  H04W8/22 ,  H04W48/16 ,  H04W60/00

Abstract: Systems and methods are provide to bring network capability awareness to steering of roaming (SoR). A home network includes a capabilities list of visited networks and their associated with the network capabilities. For SoR, he user equipment (UE) maintains a roaming partners list (RPL). The RPL provides a list of visited networks arranged in order of priority/preference (e.g., the first visited network in the RPL has first priority). The first visited network receives a registration request from the UE and relays a corresponding authentication request to the home network. The visited network in the RPL can be reordered when the UE requires a network capability not supported by the first visited network in the RPL, as indicated by the capabilities list. Depending on the implementation, the UE or the home network can make this decision to reorder the RPL.

公开(公告)号：US12232023B2

公开(公告)日：2025-02-18

申请号：US18508427

申请日：2023-11-14

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Vimal Srivastava ,  Oliver James Bull

IPC: H04W48/16 ,  H04W12/06 ,  H04W60/00 ,  H04W76/10

Abstract: Presented herein are techniques to facilitate providing slice attribute information to a user equipment (UE) for one or more slice types with which the user equipment is allowed to establish one or more session(s). In one example, a method may include obtaining, by a network element, a registration request for connection of a UE to a mobile network; performing an authentication for connection of the UE to the mobile network; and upon successful authentication, providing, by the network element, a registration response to the UE, wherein the registration response identifies one or more network slice types with which the UE is authorized to establish a session and the registration response identifies one of: attribute information for each of the one or more network slice types or network location information from which attribute information for each of the one or more network slice types is to be obtained.

公开(公告)号：US20250048074A1

公开(公告)日：2025-02-06

申请号：US18363069

申请日：2023-08-01

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Timothy Peter Stammers ,  Vimal Srivastava

IPC: H04W8/02 ,  H04W12/00 ,  H04W24/10 ,  H04W60/00 ,  H04W64/00

Abstract: A Radio Access Network (RAN) node configures a User Equipment (UE) to provide measurement results for private wireless networks in the neighborhood of the UE. The RAN node registers the UE with a computer network and provides location information about the UE to an Application Function (AF) connected to the computer network. The RAN node obtains a partial identifier that specifies a range of private wireless networks selected by the AF, and sends a request to the UE for measurements associated with the range of private wireless networks.

公开(公告)号：US12213095B2

公开(公告)日：2025-01-28

申请号：US17528952

申请日：2021-11-17

Applicant: Cisco Technology, Inc.

Inventor： Vimal Srivastava ,  Ravi Shekhar

IPC: H04W72/04 ,  H04W60/00 ,  H04W76/10

Abstract: A mobile network is operative to perform a quota validation procedure in relation to a maximum number of user equipments (UEs) permitted in a network slice. In one illustrative example, a control plane (CP) function of the mobile network may receive, from the UE, a message which indicates a registration request for registration and includes a slice ID of the network slice. The CP function may manage a registration procedure for assigning resources of the network slice to the UE. The CP function may alternatively manage the registration procedure to refrain from assigning the resources of the network slice to the UE, at least for a delay time period, based on identifying that an indication of the UE indicates an expected delay in use of service in the network slice. The indication may be included in the message and indicate the delay time period of the expected delay.

公开(公告)号：US20250016646A1

公开(公告)日：2025-01-09

申请号：US18347783

申请日：2023-07-06

Applicant: Cisco Technology, Inc.

Inventor： Irfan Ali ,  Vimal Srivastava ,  Ravi Shekhar

IPC: H04W36/22 ,  H04W36/00

Abstract: The present technology involves system, methods, and computer-readable media for establishing mobility of user equipment (UEs) or mobile from congested new radio (NR) cells to un-congested Long-Term Evolution (LTE) cells. For operators that deploy both LTE cells and NR cells, the UEs can move from congested NR cells to un-congested LTE cells but can also be handed back into un-congested NR cells.

公开(公告)号：US12137409B2

公开(公告)日：2024-11-05

申请号：US17509802

申请日：2021-10-25

Applicant: Cisco Technology, Inc.

Inventor： Ravi Shekhar ,  Aditya Prakash ,  Amit Shivhare ,  Vimal Srivastava

IPC: H04W48/18 ,  H04W8/18 ,  H04W60/00 ,  H04W72/54 ,  H04W72/563 ,  H04W76/10

Abstract: A control plane (CP) function for mobility management may receive, from a user equipment (UE), a message which indicates a registration request for registration to a network slice. The CP function may select, as an allowed slice ID, a first slice ID of a first network slice in which to register the UE. The first slice ID has a slice/service type (SST) value indicating an SST and a first slice differentiator (SD) value associated with a first level of service to be provided. The CP function may alternatively select, as the allowed slice ID, a second slice ID of a second network slice in which to register the UE based on unavailability of the slice type associated with the first level of service. The second slice ID has the SST value indicating the slice type and a second SD value associated with a second level of service to be provided.

公开(公告)号：US20240298234A1

公开(公告)日：2024-09-05

申请号：US18471575

申请日：2023-09-21

Applicant: Cisco Technology, Inc.

Inventor： Vimal Srivastava ,  Ravi Kiran Guntupalli ,  Piyush Srivastava ,  Amit Shivhare

IPC: H04W36/22 ,  H04W12/06 ,  H04W36/32

CPC classification number: H04W36/22 ,  H04W12/06 ,  H04W36/322

Abstract: Provided herein are techniques to facilitate location-specific wireless local area network (WLAN) offload restrictions for user equipment based on wireless wide area network (WWAN) radio band(s). In at least one example, a method performed by an authentication server of a WLAN may include, for a user equipment (UE) that is connected to an NR radio band of a WWAN and is seeking to connect to the WLAN, querying a subscription element of the WWAN to obtain a location indicator and an NR radio band indicator for the UE; determining, based on the location indicator and the NR radio band indicator, whether the UE is allowed or required to offload to the WLAN; and based on determining that the UE is allowed to offload from the WWAN to the WLAN, facilitating a WLAN association response message to be sent to the UE for offloading the UE to the WLAN.