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    DUAL ACCESS AND MOBILITY MANAGEMENT FUNCTION SUPPORT FOR SUPPORTING OPTIMIZED 5G CORE DEPLOYMENTS
    1.
    发明申请
    DUAL ACCESS AND MOBILITY MANAGEMENT FUNCTION SUPPORT FOR SUPPORTING OPTIMIZED 5G CORE DEPLOYMENTS 有权

    公开(公告)号：US20220417726A1

    公开(公告)日：2022-12-29

    申请号：US17358193

    申请日：2021-06-25

    Applicant: Cisco Technology, Inc.

    Inventor： Vimal Srivastava ,  Sangram Kishore Lakkaraju ,  Anal Srivastava ,  Srinath Gundavelli

    IPC: H04W8/12 ,  H04W60/04 ,  H04W48/18

    Abstract: A first access and mobility management function (AMF) in a network receives, from user equipment (UE), a registration request listing a first network slice and a second network slice. Upon determining that the first AMF supports the first, but not the second, network slice, the first AMF causes selection of (i) the first AMF as a session and mobility management (SM)-AMF to perform mobility management, and first session management signaling for the first network slice; and (ii) a second AMF as a session management only (SO)-AMF to perform only second session management signaling for the second network slice. The first AMF, acting as SM-AMF, performs the first session management signaling for a first data session on the first network slice, while the second AMF, acting as SO-AMF, performs only the second session management signaling for a second data session on the second network slice.

    INTER-AMF CONNECTED MODE HANDOVER OPTIMIZATION
    2.
    发明公开
    INTER-AMF CONNECTED MODE HANDOVER OPTIMIZATION 审中-公开

    公开(公告)号：US20230143182A1

    公开(公告)日：2023-05-11

    申请号：US17521280

    申请日：2021-11-08

    Applicant: Cisco Technology, Inc.

    Inventor： Anal Srivastava ,  Sangram Kishore Lakkaraju

    IPC: H04W36/00 ,  H04W36/08

    CPC classification number: H04W36/0072 ,  H04W36/08

    Abstract: A target Access and Mobility Management Function (AMF) switches the path for network traffic to a User Equipment (UE) in an inter-AMF mobility event. The target AMF obtains a path switch request from a target next generation Node B (gNB). The path switch request includes a UE identifier and a source AMF identifier. The target AMF compares the source AMF identifier with a target AMF identifier, and responsive to a determination that the source AMF identifier is different than the target AMF identifier, the target AMF provides a UE context transfer request to the source AMF. The target AMF obtains the UE context from the source AMF and processes the path switch request to update a core network path for a session of the UE. The target AMF also provides a path switch response to the target gNB.

    NEIGHBOR LISTS FOR USE IN MULTI-OPERATOR CORE NETWORK BASED NEUTRAL HOST NETWORKS
    3.
    发明申请
    NEIGHBOR LISTS FOR USE IN MULTI-OPERATOR CORE NETWORK BASED NEUTRAL HOST NETWORKS 有权

    公开(公告)号：US20210160743A1

    公开(公告)日：2021-05-27

    申请号：US16691936

    申请日：2019-11-22

    Applicant: Cisco Technology, Inc.

    Inventor： Rajesh S. Pazhyannur ,  Shailender Potharaju ,  Anal Srivastava

    IPC: H04W36/00 ,  H04W36/04 ,  H04W24/02 ,  H04W48/16 ,  H04W36/08 ,  H04W16/32

    Abstract: A radio access network (RAN) of a neutral host network (NHN) provides communications in a plurality of small cells, and is a shared resource with shared access by a plurality of mobile network operators (MNOs) via a multi-operator core network (MOCN). A base station maintains a neighbor list of small cell frequencies of neighboring small cells of a small cell, and broadcasts, to a user equipment (UE), a system information message which includes the neighbor list. The base station additionally maintains a plurality of operator-specific neighbor lists of one or more macro-cell frequencies of one or more neighboring macro-cells, where each such list is associated with a respective one of a plurality of macro-cellular networks of the MNOs. The base station transmits, to the UE, a message including a selected one of the operator-specific neighbor lists associated with an identified one of the mobile network operators of the UE.

    Inter-AMF connected mode handover optimization
    9.
    发明授权
    Inter-AMF connected mode handover optimization 有权

    公开(公告)号：US11825361B2

    公开(公告)日：2023-11-21

    申请号：US17521280

    申请日：2021-11-08

    Applicant: Cisco Technology, Inc.

    Inventor： Anal Srivastava ,  Sangram Kishore Lakkaraju

    IPC: H04W36/00 ,  H04W36/08

    CPC classification number: H04W36/0072 ,  H04W36/08

    Abstract: A target Access and Mobility Management Function (AMF) switches the path for network traffic to a User Equipment (UE) in an inter-AMF mobility event. The target AMF obtains a path switch request from a target next generation Node B (gNB). The path switch request includes a UE identifier and a source AMF identifier. The target AMF compares the source AMF identifier with a target AMF identifier, and responsive to a determination that the source AMF identifier is different than the target AMF identifier, the target AMF provides a UE context transfer request to the source AMF. The target AMF obtains the UE context from the source AMF and processes the path switch request to update a core network path for a session of the UE. The target AMF also provides a path switch response to the target gNB.

    Dual access and mobility management function support for supporting optimized 5G core deployments
    10.
    发明授权
    Dual access and mobility management function support for supporting optimized 5G core deployments 有权

    公开(公告)号：US11800346B2

    公开(公告)日：2023-10-24

    申请号：US17358193

    申请日：2021-06-25

    Applicant: Cisco Technology, Inc.

    Inventor： Vimal Srivastava ,  Sangram Kishore Lakkaraju ,  Anal Srivastava ,  Srinath Gundavelli

    IPC: H04W8/12 ,  H04W48/18 ,  H04W60/04

    CPC classification number: H04W8/12 ,  H04W48/18 ,  H04W60/04

    Abstract: A first access and mobility management function (AMF) in a network receives, from user equipment (UE), a registration request listing a first network slice and a second network slice. Upon determining that the first AMF supports the first, but not the second, network slice, the first AMF causes selection of (i) the first AMF as a session and mobility management (SM)-AMF to perform mobility management, and first session management signaling for the first network slice; and (ii) a second AMF as a session management only (SO)-AMF to perform only second session management signaling for the second network slice. The first AMF, acting as SM-AMF, performs the first session management signaling for a first data session on the first network slice, while the second AMF, acting as SO-AMF, performs only the second session management signaling for a second data session on the second network slice.

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