公开(公告)号：US20210051235A1

公开(公告)日：2021-02-18

申请号：US16978437

申请日：2018-03-20

Applicant: Nokia Solutions and Networks Oy

Inventor： Yigang Cai ,  Ranjan Sharma

IPC: H04M15/00 ,  H04W48/18 ,  H04M15/16 ,  H04W4/24 ,  H04L12/24

Abstract: Systems, methods, and software for performing online charging in next generation networks. In one embodiment, a Session Management Function (SMF) of a next generation network implements a Charging Trigger Function (CTF) that directly interfaces with an Online Charging System (OCS). The CTF transmits a charging request to the OCS requesting a quota of service units for the SMF, and receives a charging response from the OCS indicating the quota of service units granted to the SMF by the OCS. The CTF then manages the quota by allocating slices of the quota to User Plane Functions (UPF) implemented in a user plane of the next generation network.

公开(公告)号：US11877188B2

公开(公告)日：2024-01-16

申请号：US17279323

申请日：2020-03-24

Applicant: Nokia Solutions and Networks Oy

Inventor： Ranjan Sharma

IPC: H04W28/08 ,  H04W28/088 ,  H04L67/51 ,  H04L61/4511 ,  H04L67/1001 ,  H04L67/1097 ,  H04L67/00 ,  H04L69/40

CPC classification number: H04W28/088 ,  H04L61/4511 ,  H04L67/1001 ,  H04L67/1097 ,  H04L67/34 ,  H04L67/51 ,  H04L69/40

Abstract: A system, apparatus, method, and non-transitory computer readable medium for implementing a fault-tolerant multi-NRF network topology may include a network repository function (NRF) device including: at least one processor configured to execute computer readable instructions to cause the NRF device to, broadcast a NRF query to a NRF cluster of a core network, the NRF cluster including a plurality of NRF devices located in a public land mobile network (PLMN); receive NRF query responses from each NRF device of the NRF cluster, the NRF query responses including network configuration information of each NRF device; determine a status of each NRF device based on the network configuration information; determine a list of network function (NF) devices registered with the NRF cluster; receive a NF query request from a first NF device; and transmit a NF query response to the first NF device.

公开(公告)号：US11575796B2

公开(公告)日：2023-02-07

申请号：US17052883

申请日：2018-05-08

Applicant: Nokia Solutions and Networks Oy

Inventor： Yigang Cai ,  Ranjan Sharma ,  Maryse Gardella

IPC: H04M15/00 ,  H04L12/14 ,  H04W4/24

Abstract: A control plane entity selects a subset of a plurality of user plane entities to support a charging session associated with a user based on charging policies for the plurality of user plane entities. The control plane entity allocates portions of a quota for the charging session to the control plane entity and the subset of the plurality of user plane entities based on the charging policies. In some cases, the control plane entity modifies the quotas that are allocated to the control plane entity or the subset of the plurality of user plane entities. Modifying the quotas can include redistributing unused portions of the quotas among the control plane entity and the subset of the plurality of user plane entities, e.g., in response to handover of the user equipment between user plane entities.

公开(公告)号：US11044664B2

公开(公告)日：2021-06-22

申请号：US16611842

申请日：2017-06-29

Applicant: Nokia Solutions and Networks Oy

Inventor： Yigang Cai ,  Ranjan Sharma

IPC: H04W48/18 ,  H04W76/11 ,  H04L12/14 ,  H04M15/00 ,  H04W4/24 ,  H04W8/24

Abstract: Systems and methods of a network that implements network slicing. In one embodiment, the system includes an account charging server that determines a plurality of charging rules for a UE that are each mapped to a different network slice of the network, a policy control server that identifies the charging rules, and a slice selection server that selects a network slice for the UE based on the charging rules. The system further includes an interface between the policy control server and the account charging server that supports a transaction based on Diameter protocol that includes a request/response. A first Attribute Value Pair (AVP) is defined for the response to identify a charging rule, and a second AVP is defined for the response to identify a network slice that is mapped to the charging rule.

公开(公告)号：US20200169951A1

公开(公告)日：2020-05-28

申请号：US16611842

申请日：2017-06-29

Applicant: Nokia Solutions and Networks Oy

Inventor： Yigang Cai ,  Ranjan Sharma

IPC: H04W48/18 ,  H04W4/24 ,  H04M15/00 ,  H04L12/14 ,  H04W8/24 ,  H04W76/11

Abstract: Systems and methods of a network that implements network slicing. In one embodiment, the system includes an account charging server that determines a plurality of charging rules for a UE that are each mapped to a different network slice of the network, a policy control server that identifies the charging rules, and a slice selection server that selects a network slice for the UE based on the charging rules. The system further includes an interface between the policy control server and the account charging server that supports a transaction based on Diameter protocol that includes a request/response. A first Attribute Value Pair (AVP) is defined for the response to identify a charging rule, and a second AVP is defined for the response to identify a network slice that is mapped to the charging rule.

公开(公告)号：US20200068074A1

公开(公告)日：2020-02-27

申请号：US16611839

申请日：2017-06-29

Applicant: Nokia Solutions and Networks Oy

Inventor： Yigang Cai ,  Ranjan Sharma

IPC: H04M15/00 ,  H04W4/24 ,  H04W48/18

Abstract: Systems, methods, and software for selecting a network slice for User Equipment (UE) in a network that is partitioned into network slices. In one embodiment, a slice selection server receives an attach request intiated by the UE to attach to the network, sends a request to a policy control server to obtain a slice selection policy for the UE, and receives a response from the policy control server indicating a plurality of charging rules for the UE that are each mapped to a different one of the network slices. The slice selection server selects a network slice for the UE based on the charging rules, and sends an attach response to the UE that includes a network slice identifier (ID) for the network slice selected for the UE.

公开(公告)号：US11349997B2

公开(公告)日：2022-05-31

申请号：US16978437

申请日：2018-03-20

Applicant: Nokia Solutions and Networks Oy

Inventor： Yigang Cai ,  Ranjan Sharma

IPC: H04M15/00 ,  H04L41/0893 ,  H04M15/16 ,  H04W4/24 ,  H04W48/18

Abstract: Systems, methods, and software for performing online charging in next generation networks. In one embodiment, a Session Management Function (SMF) of a next generation network implements a Charging Trigger Function (CTF) that directly interfaces with an Online Charging System (OCS). The CTF transmits a charging request to the OCS requesting a quota of service units for the SMF, and receives a charging response from the OCS indicating the quota of service units granted to the SMF by the OCS. The CTF then manages the quota by allocating slices of the quota to User Plane Functions (UPF) implemented in a user plane of the next generation network.