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公开(公告)号：US11234115B2
公开(公告)日：2022-01-25
申请号：US16791500
申请日：2020-02-14
Applicant: Cisco Technology, Inc.
Inventor： Ryo Watanabe , Aeneas Sean Dodd-Noble , Santhosh Shenoy Panambur , Om Prakash Suthar , Raghavendra Vidyashankar Suryanarayanarao , Vivek Agarwal
Abstract: Presented herein are efficient techniques through which a Third Generation Partnership Project (3GPP) Access and Mobility Management Function (AMF) may retrieve information for a Mobility Management Entity (MME) to support graceful mobility for various inter-Radio Access Technology (inter-RAT) mobility scenarios. In one example, a method includes determining, by an AMF, an inter-RAT mobility event for a user equipment; identifying, by the AMF, an MME associated with the inter-RAT mobility event based, at least in part, on MME information contained in a network database; and transferring context information for the user equipment between the AMF and the MME. In one instance, the network database may be a Network Repository Function (NRF) for a 3GPP Fifth Generation mobile network and the MME information may be associated with an MME network function type stored in the NRF.
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公开(公告)号：US20210281664A1
公开(公告)日：2021-09-09
申请号：US16810994
申请日：2020-03-06
Applicant: Cisco Technology, Inc.
Inventor： Raghavendra Vidyashankar Suryanarayanarao , Tomonobu Okada , Pravin Appaji Ajagekar , Aeneas Sean Dodd-Noble
Abstract: Presented herein are techniques to facilitate dynamic negotiation and compression of Packet Forwarding Control Protocol (PFCP) messages in a mobile networking environment. In one example, a method includes identifying, by a function, a negotiated compression algorithm to utilize for compressing one or more Packet Forwarding Control Protocol (PFCP) messages; determining whether a payload for a particular PFCP message is to be compressed based on at least one of system resources of the function and a size of the payload; based on determining that the payload is to be compressed, compressing the payload utilizing the negotiated compression algorithm to generate a compressed PFCP message; and setting a compression indication in a header of the compressed PFCP message.
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公开(公告)号：US11468425B1
公开(公告)日：2022-10-11
申请号：US16834133
申请日：2020-03-30
Applicant: Cisco Technology, Inc.
Inventor： Om Prakash Suthar , Santhosh Shenoy Panambur , Raghavendra Vidyashankar Suryanarayanarao , Tae Ryoung Hur
Abstract: Techniques and mechanisms for asynchronously initiating online charging triggers in mobile networks are described. A control plane gateway or “GW-C” may obtain from a mobility management entity (MME) a create session request associated with an attach request for a user equipment (UE). The GW-C may send to an online charging system (OCS) a Gy credit-control request for requesting a quota of units (e.g. a resource usage quota) associated with a subscriber of the UE. Prior to sending the Gy credit-control request or obtaining a Gy credit-control answer, the GW-C may send to the MME a create session response which prompts an attach accept or reject of the attach request. The Gy credit-control request may be sent to the OCS during an attach procedure associated with the attach request for the UE or, alternatively, in response to receiving a user data packet of the session as a notification.
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Patent Agency Ranking
公开(公告)号：US20210258766A1
公开(公告)日：2021-08-19
申请号：US16791500
申请日：2020-02-14
Applicant: Cisco Technology, Inc.
Inventor： Ryo Watanabe , Aeneas Sean Dodd-Noble , Santhosh Shenoy Panambur , Om Prakash Suthar , Raghavendra Vidyashankar Suryanarayanarao , Vivek Agarwal
Abstract: Presented herein are efficient techniques through which a Third Generation Partnership Project (3GPP) Access and Mobility Management Function (AMF) may retrieve information for a Mobility Management Entity (MME) to support graceful mobility for various inter-Radio Access Technology (inter-RAT) mobility scenarios. In one example, a method includes determining, by an AMF, an inter-RAT mobility event for a user equipment; identifying, by the AMF, an MME associated with the inter-RAT mobility event based, at least in part, on MME information contained in a network database; and transferring context information for the user equipment between the AMF and the MME. In one instance, the network database may be a Network Repository Function (NRF) for a 3GPP Fifth Generation mobile network and the MME information may be associated with an MME network function type stored in the NRF.
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公开(公告)号：US11729608B2
公开(公告)日：2023-08-15
申请号：US17306330
申请日：2021-05-03
Applicant: Cisco Technology, Inc.
Inventor： Aeneas Sean Dodd-Noble , Raghavendra Vidyashankar Suryanarayanarao , Ryo Watanabe , Vivek Agarwal , Rajiv Asati , Om Prakash Suthar , Santanu Dasgupta
CPC classification number: H04W8/26 , H04L61/4511 , H04W4/025 , H04W8/08 , H04W76/12 , H04W76/10 , H04W84/042
Abstract: A solution for selecting an optimal user Plane entity (with Control and User Plane Separation (CUPS)) per UE during seamless roaming. In one embodiment, a method is provide that is performed by a control plane entity in a mobile core network that supports inter public land mobile network (PLMN) roaming among two or more PLMNs. The method includes obtaining a create session request from an entity in a second PLMN to which a user equipment has roamed from a first PLMN; selecting a particular user plane entity among a plurality of user plane entities based on one or more user equipment related parameters; and establishing a session with the particular user plane entity to serve user plane traffic in the mobile core network for the user equipment.
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公开(公告)号：US11223705B2
公开(公告)日：2022-01-11
申请号：US16810994
申请日：2020-03-06
Applicant: Cisco Technology, Inc.
Inventor： Raghavendra Vidyashankar Suryanarayanarao , Tomonobu Okada , Pravin Appaji Ajagekar , Aeneas Sean Dodd-Noble
Abstract: Presented herein are techniques to facilitate dynamic negotiation and compression of Packet Forwarding Control Protocol (PFCP) messages in a mobile networking environment. In one example, a method includes identifying, by a function, a negotiated compression algorithm to utilize for compressing one or more Packet Forwarding Control Protocol (PFCP) messages; determining whether a payload for a particular PFCP message is to be compressed based on at least one of system resources of the function and a size of the payload; based on determining that the payload is to be compressed, compressing the payload utilizing the negotiated compression algorithm to generate a compressed PFCP message; and setting a compression indication in a header of the compressed PFCP message.
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公开(公告)号：US20210258771A1
公开(公告)日：2021-08-19
申请号：US17306330
申请日：2021-05-03
Applicant: Cisco Technology, Inc.
Inventor： Aeneas Sean Dodd-Noble , Raghavendra Vidyashankar Suryanarayanarao , Ryo Watanabe , Vivek Agarwal , Rajiv Asati , Om Prakash Suthar , Santanu Dasgupta
Abstract: A solution for selecting an optimal user Plane entity (with Control and User Plane Separation (CUPS)) per UE during seamless roaming. In one embodiment, a method is provide that is performed by a control plane entity in a mobile core network that supports inter public land mobile network (PLMN) roaming among two or more PLMNs. The method includes obtaining a create session request from an entity in a second PLMN to which a user equipment has roamed from a first PLMN; selecting a particular user plane entity among a plurality of user plane entities based on one or more user equipment related parameters; and establishing a session with the particular user plane entity to serve user plane traffic in the mobile core network for the user equipment.
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公开(公告)号：US11070974B2
公开(公告)日：2021-07-20
申请号：US16367627
申请日：2019-03-28
Applicant: Cisco Technology, Inc.
Inventor： Aeneas Sean Dodd-Noble , Raghavendra Vidyashankar Suryanarayanarao , Ryo Watanabe , Vivek Agarwal , Rajiv Asati , Om Prakash Suthar , Santanu Dasgupta
Abstract: A solution for selecting an optimal user Plane entity (with Control and User Plane Separation (CUPS)) per UE during seamless roaming. In one embodiment, a method is provide that is performed by a control plane entity in a mobile core network that supports inter public land mobile network (PLMN) roaming among two or more PLMNs. The method includes obtaining a create session request from an entity in a second PLMN to which a user equipment has roamed from a first PLMN; selecting a particular user plane entity among a plurality of user plane entities based on one or more user equipment related parameters; and establishing a session with the particular user plane entity to serve user plane traffic in the mobile core network for the user equipment.
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