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公开(公告)号：US20190132728A1
公开(公告)日：2019-05-02
申请号：US15855859
申请日：2017-12-27
Applicant: Cisco Technology, Inc.
Inventor： Ravi Shekhar , Ameo Ghosh , Sharad Chandra , Humberto Jose La Roche , Ian McDowell Campbell
Abstract: Methods and apparatus for use in reducing signal latency in a mobile network with use of localized Unified Data Management (UDM) entities are described. For example, the technique may employ a plurality of localized UDMs, where each localized UDM is associated with a unique location area. A localized UDM provides for storage of, in a localized Unified Data Repository (UDR), subscriber profile data associated with a subscriber of user equipment (UE). The subscriber profile data stored in the localized UDR may be a replica or copy of at least a subset of subscriber profile data for the subscriber stored in a UDR of a “centralized” UDM. Query access to the localized UDR may be provided for network functions (NFs) or subscriber/UEs. The replica or copy of subscriber profile data may be stored in the localized UDR for those subscribers having use in the location area.
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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
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.
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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
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.
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公开(公告)号：US12193078B2
公开(公告)日：2025-01-07
申请号：US17480488
申请日：2021-09-21
Applicant: Cisco Technology, Inc.
Inventor： Ravi Shekhar , Aeneas Sean Dodd-Noble
Abstract: Techniques are described herein for network slice support of respective transport protocols. In one example, a session management function obtains, from a user equipment, a request for a network slice identifier in a network that includes a plurality of network slices each configured to support a respective transport protocol. In response to the request, the session management function identifies a first transport protocol of the respective transport protocols by which the user equipment is to communicate. Based on the first transport protocol, the session management function identifies a first network slice of the plurality of network slices by which the user equipment is to communicate. The first network slice is configured to support the first transport protocol. The session management function provides the network slice identifier to the user equipment. The network slice identifier corresponds to the first network slice.
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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
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.
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Patent Agency Ranking
公开(公告)号：US11902260B2
公开(公告)日：2024-02-13
申请号：US17391199
申请日：2021-08-02
Applicant: Cisco Technology, Inc.
Inventor： Pravin Appaji Ajagekar , Ravi Shekhar , Nithin Chitta
IPC: H04L9/40 , H04L67/141 , H04W12/037 , H04W12/033
CPC classification number: H04L63/0428 , H04L63/029 , H04L67/141 , H04W12/033 , H04W12/037
Abstract: A network node selectively encrypts messages between a user plane node and a control plane node in a network system. The user plane node and the control plane node negotiate a connection and indicate an encryption level for the connection. The encryption level is selected from an Information Element (IE) level, a message level, or a feature level. The user plane node and the control plane node selectively encrypt at least a portion of the messages between the user plane node and the control plane node based on the encryption level for the connection.
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27.发明公开公开(公告)号：US20240015590A1
公开(公告)日：2024-01-11
申请号：US17858632
申请日：2022-07-06
Applicant: Cisco Technology, Inc.
Inventor： Ravi Shekhar , Vimal Srivastava
CPC classification number: H04W28/0804 , H04W76/15
Abstract: Disclosed herein are systems, methods, and computer-readable media for enhancements to 5G Access Transport Steering Switching & Splitting (ATSSS) rules. In one aspect, a method includes receiving, at a network controller, a request for a Multi-Access Protocol Data Unit (MA-PDU) session from a user device, the request including a “Multi access multi PLMN” flag for requesting multiple Public Land Mobile Network (PLMN) sessions; generating, at the network controller, an access transport steering switching and splitting (ATSSS) rule for steering traffic associated with the user device between at least two PLMNs once the multiple PLMN sessions are established between the user device and the at least two PLMNs; and sending the steering rule to the user device to be used for splitting uplink network traffic transmitted between the user device and the at least two PLMNs.
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28.发明公开公开(公告)号：US20230396983A1
公开(公告)日：2023-12-07
申请号：US17833320
申请日：2022-06-06
Applicant: Cisco Technology, Inc.
Inventor： Ravi Shekhar , Vimal Srivastava
CPC classification number: H04W8/186 , H04L67/55 , H04W12/06 , H04L63/0272
Abstract: In one illustrative example, a unified data management (UDM) of a mobile network is established in a UDM set with a plurality of private network UDMs instances of a plurality of private mobile networks. The UDM of the mobile network provides access to a plurality of subscription profiles associated with a plurality of subscribers of the mobile network, and each private network UDM instance provides access to a subset of the subscription profiles associated with a subset of the subscribers in the private mobile network. The UDM of the mobile network operates to communicate, in an authentication procedure, authentication data for authentication of a user equipment (UE) in the mobile network. After the authentication of the UE in the mobile network, the UDM operates to push authentication status information of the UE to the private network UDM instance of the private mobile network.
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公开(公告)号：US11785662B2
公开(公告)日：2023-10-10
申请号：US17369125
申请日：2021-07-07
Applicant: Cisco Technology, Inc.
Inventor： Aditya Prakash , Ravi Shekhar , Vimal Srivastava , Amit Shivhare
IPC: H04W76/25 , H04L67/145 , H04W8/02 , H04W8/18 , H04W36/18
CPC classification number: H04W76/25 , H04L67/145 , H04W8/02 , H04W8/18 , H04W36/18
Abstract: Presented herein are techniques to provide data session continuity for parallel data sessions involving a multiple Universal Subscriber Identity Module (MUSIM) user equipment (UE). In one example, a method may include obtaining an indication that session continuity for a first session associated with a first data network and a first USIM of a UE is allowed with respect to a second USIM in which the UE communicates first traffic for the first session via the first USIM. The method may further include determining that second traffic for a second session is to be communicated via the second USIM of the UE and, based on the indication that session continuity for the first session is allowed with respect to the second USIM, providing service information to the UE for the first session to enable the UE to communicate both the first traffic and the second traffic via the second USIM.
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30.发明授权公开(公告)号：US11653194B2
公开(公告)日：2023-05-16
申请号：US17218787
申请日：2021-03-31
Applicant: Cisco Technology, Inc.
Inventor： Ravi Shekhar , Vimal Srivastava
Abstract: Presented herein are techniques to facilitate resiliency, overload control, and/or the like for an Access and Mobility Management Function (AMF) in a Third Generation Partnership Project (3GPP) mobile network architecture. In one instance, a method is provided that includes initiating, by a buddy AMF, a heartbeat exchange with a primary AMF. The method may further include identifying a status condition for the primary AMF by the buddy AMF based on the heartbeat exchange and providing a status indication to a radio access network node by the buddy AMF based on the status condition for the primary AMF.
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