公开(公告)号：US12069747B2

公开(公告)日：2024-08-20

申请号：US17375765

申请日：2021-07-14

申请人： Cisco Technology, Inc.

发明人： Ravi Kiran Guntupalli ,  Srinath Gundavelli ,  Abhishek Dhammawat

IPC分类号： H04W76/10 ,  H04W48/20 ,  H04W68/00

CPC分类号： H04W76/10 ,  H04W48/20 ,  H04W68/005

摘要： Disclosed are embodiments that leverage a central control plane of a managed 5G network service architecture across multiple serviced tenants by deploying tenant specific user plane function (UPF) and gNB components within tenant managed compute infrastructure. To enable this architecture, the disclosed embodiments assign gNBs and UPF instances to specific tenants and communicate those assignments to core components. Policies can be defined and applied to specific tenants from the central control plane. Inbound data routing to a specific tenant is accomplished by referencing a data store in the control plane that identifies which gNBs are assigned to a tenant associated with the incoming data. Those gNBs are then paged to service the incoming data.

公开(公告)号：US20240049106A1

公开(公告)日：2024-02-08

申请号：US17819282

申请日：2022-08-11

申请人： Cisco Technology, Inc.

发明人： Sri Gundavelli ,  Vimal Srivastava ,  Ravi Kiran Guntupalli

IPC分类号： H04W40/18 ,  H04W60/04

CPC分类号： H04W40/18 ,  H04W60/04

摘要： Disclosed are a system and method for updating a user equipment route selection policy. The method includes receiving, at a home network in communication with a user equipment, an indication that a user of the user equipment desires to connect to a standalone non-public network for an event, receiving service hosting information for the event, revising a user equipment route selection policy at the home network based on the service hosting information to yield an updated user equipment route selection policy and transmitting the updated user equipment route selection policy to the user equipment. The user equipment registers, based on the updated user equipment route selection policy, with the standalone non-public network for the event.

公开(公告)号：US10924518B2

公开(公告)日：2021-02-16

申请号：US16118554

申请日：2018-08-31

申请人： Cisco Technology, Inc.

发明人： Aeneas Sean Dodd-Noble ,  Irfan Ali ,  Pablo Camarillo Garvia ,  Om Prakash Suthar ,  Ravi Kiran Guntupalli ,  Arun C. Alex

IPC分类号： G06F15/16 ,  H04L29/06 ,  H04L12/46 ,  H04L29/08

摘要： Various implementations disclosed herein enable programming user plane gateway controllers over enhanced N9 interfaces. In various implementations, a method of gateway controlling is performed by a computing device including one or more processors, and a non-transitory memory. In various implementations the method includes determining, by a first packet gateway controller connected to a first session manager device, that a user equipment moved to a geographical area that is served by a second session manager device. In some implementations, the method includes receiving, by the first packet gateway device, a set of information for a second packet gateway device. In some implementations, the method includes transmitting, by the first packet gateway device, a session establishment request via a first network interface to the second packet gateway controller using segment routing via a second network interface.

公开(公告)号：US10517012B2

公开(公告)日：2019-12-24

申请号：US15872823

申请日：2018-01-16

申请人： Cisco Technology, Inc.

发明人： Srinath Gundavelli ,  Ravi Kiran Guntupalli ,  Aeneas Sean Dodd-Noble ,  Kirk McBean

IPC分类号： H04W28/02 ,  H04L12/749 ,  H04L12/715 ,  H04W28/12 ,  H04W36/00 ,  H04W36/12 ,  H04W36/32 ,  H04W40/36 ,  H04L12/721 ,  H04L12/723 ,  H04L29/12 ,  H04W8/08 ,  H04W24/02 ,  H04W40/24 ,  H04W88/16

摘要： A control plane (CP) entity is to adaptively reroute user plane traffic of a mobile node (MN) with use of a segment routing (SR) for IPv6. A message indicating an attachment of the MN to the mobile network is received selecting a first user plane (UP) anchor node. A first set of home network prefixes (HNPs) are allocated to the MN. An IP traffic flow using a first HNP prefix is established between the MN and a correspondent node (CN) along a first network path—defined at least in part by the first UP anchor node and an anchor node of the CN. In response to a handover of the MN, a message indicating a subsequent attachment of the MN is received selecting a second UP anchor node. The second UP anchor node is instructed to host the first HNP prefix previously allocated by the first UP anchor node.

公开(公告)号：US20190223047A1

公开(公告)日：2019-07-18

申请号：US15872823

申请日：2018-01-16

申请人： Cisco Technology, Inc.

发明人： Srinath Gundavelli ,  Ravi Kiran Guntupalli ,  Aeneas Sean Dodd-Noble ,  Kirk McBean

IPC分类号： H04W28/02 ,  H04L12/749 ,  H04L12/715 ,  H04W28/12

摘要： A control plane (CP) entity is to adaptively reroute user plane traffic of a mobile node (MN) with use of a segment routing (SR) for IPv6. A message indicating an attachment of the MN to the mobile network is received selecting a first user plane (UP) anchor node. A first set of home network prefixes (HNPs) are allocated to the MN. An IP traffic flow using a first HNP prefix is established between the MN and a correspondent node (CN) along a first network path—defined at least in part by the first UP anchor node and an anchor node of the CN. In response to a handover of the MN, a message indicating a subsequent attachment of the MN is received selecting a second UP anchor node. The second UP anchor node is instructed to host the first HNP prefix previously allocated by the first UP anchor node.

公开(公告)号：US20240298234A1

公开(公告)日：2024-09-05

申请号：US18471575

申请日：2023-09-21

申请人： Cisco Technology, Inc.

发明人： Vimal Srivastava ,  Ravi Kiran Guntupalli ,  Piyush Srivastava ,  Amit Shivhare

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

CPC分类号： H04W36/22 ,  H04W12/06 ,  H04W36/322

摘要： 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.

公开(公告)号：US11950128B2

公开(公告)日：2024-04-02

申请号：US17490429

申请日：2021-09-30

申请人： Cisco Technology, Inc.

发明人： Irfan Ali ,  Ravi Kiran Guntupalli

IPC分类号： H04W28/02 ,  H04W28/08 ,  H04W28/10

CPC分类号： H04W28/0273 ,  H04W28/0268 ,  H04W28/09 ,  H04W28/10

摘要： A control plane (CP) function for session management performs a procedure for establishing local traffic offloading for a user equipment (UE) in a mobile network having an Evolved Packet Core (EPC) and Fifth Generation (5G) converged core that supports communications via a Long-Term Evolution (LTE) radio access network (RAN) and a Fifth Generation (5G) RAN. Initially, a connection is established for the UE via the LTE RAN that includes a first bearer between the LTE RAN and a central serving gateway-user plane (SGW-U) at a central location, and a second bearer between the central SGW-U and a central packet gateway-user plane (PGW-U) at the central location. The CP function inserts a local SGW-U at an edge location and subsequently inserts a local intermediate user plane function (I-UPF) with an uplink classifier (UL-CL) at the edge location for enabling edge offload of traffic from the LTE RAN.

公开(公告)号：US20230102552A1

公开(公告)日：2023-03-30

申请号：US17490429

申请日：2021-09-30

申请人： Cisco Technology, Inc.

发明人： Irfan Ali ,  Ravi Kiran Guntupalli

IPC分类号： H04W28/02 ,  H04W28/10 ,  H04W28/08

摘要： A control plane (CP) function for session management performs a procedure for establishing local traffic offloading for a user equipment (UE) in a mobile network having an Evolved Packet Core (EPC) and Fifth Generation (5G) converged core that supports communications via a Long-Term Evolution (LTE) radio access network (RAN) and a Fifth Generation (5G) RAN. Initially, a connection is established for the UE via the LTE RAN, where the connection includes a first bearer between the LTE RAN and a central serving gateway-user plane (SGW-U) at a central location, and a second bearer between the central SGW-U and a central packet gateway-user plane (PGW-U) at the central location. The CP function inserts a local SGW-U at an edge location and subsequently inserts a local intermediate user plane function (I-UPF) with an uplink classifier (UL-CL) at the edge location for enabling edge offload of traffic from the LTE RAN.

公开(公告)号：US20230063570A1

公开(公告)日：2023-03-02

申请号：US17464158

申请日：2021-09-01

申请人： Cisco Technology, Inc.

发明人： Srinath Gundavelli ,  Vimal Srivastava ,  Ravi Kiran Guntupalli

IPC分类号： H04W80/10 ,  H04W76/10 ,  H04L29/08 ,  H04W40/02 ,  H04W4/50

摘要： 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：US11374900B2

公开(公告)日：2022-06-28

申请号：US17079836

申请日：2020-10-26

申请人： Cisco Technology, Inc.

发明人： Aeneas Sean Dodd-Noble ,  Irfan Ali ,  Ravi Kiran Guntupalli ,  Ravi Shekhar

IPC分类号： H04L61/256

摘要： A method enables communication between Session Management Function (SMF) and User Plane Function (UPF) instances which are separately deployed behind Network Address Translation (NAT) services. The method includes configuring an SMF or a UPF to initiate an association with a corresponding UPF or SMF. The SMF registers first information with a Network Repository Function (NRF) enabling the remote UPF to communicate with the SMF through a NAT service. The method further includes obtaining second information from the NRF enabling the SMF to communicate with the remote UPF through the NAT service. The method also includes sending an association request to the remote UPF based on the second information and receiving an association response from the remote UPF through the NAT service.