CN112583628A - Method and system for calling core network capability - Google Patents

Method and system for calling core network capability Download PDF

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Publication number
CN112583628A
CN112583628A CN201910945804.1A CN201910945804A CN112583628A CN 112583628 A CN112583628 A CN 112583628A CN 201910945804 A CN201910945804 A CN 201910945804A CN 112583628 A CN112583628 A CN 112583628A
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China
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core network
network element
capability
nef
access platform
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CN201910945804.1A
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Chinese (zh)
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黄勇
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ZTE Corp
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ZTE Corp
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Priority to CN201910945804.1A priority Critical patent/CN112583628A/en
Priority to PCT/CN2020/110314 priority patent/WO2021063129A1/en
Publication of CN112583628A publication Critical patent/CN112583628A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H04L12/1403—Architecture for metering, charging or billing
    • H04L12/1407—Policy-and-charging control [PCC] architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0894—Policy-based network configuration management

Abstract

The invention provides a method and a system for calling core network capacity, wherein the method comprises the following steps: the NEF or the capability open access platform receives a core network capability calling request from an application end; the NEF or the capability open access platform selects a 5G core network element or a 4G core network element which needs routing through specific logic control according to the core network capability calling request; the NEF or the capability open access platform sends the core network capability calling request to the selected 5G core network element or 4G core network element; and the NEF or the capability open access platform returns a core network capability calling response from the 5G core network element or the 4G core network element to the application terminal. In the invention, a unified and open 4G/5G user interoperation is provided for third-party application and self-owned application to use the core network capability through the network element capability open northbound interface and the 4G/5G core network element convergence access interface provided by the NEF or the capability open access platform.

Description

Method and system for calling core network capability
Technical Field
The invention relates to the field of communication, in particular to a method and a system for calling core network capability.
Background
For the traditional telecom operator 4G user and 4G network scene, the capability opening function network element is only in butt joint with a single 4G core network, when the 4G user calls the 4G core network capability through a third-party application and an own application, the capability opening function network element directly initiates a request operation through a Diameter protocol interface of the 4G core network, the 4G core network completes the execution operation of specific capability, and the problem of the interoperation between the 4G/5G user and the 4G/5G network does not exist. However, with the establishment of the 5G network and the development of the 5G user, the 5G user and the 4G user, and the 5G network and the 4G network necessarily coexist in the early stage, and the interworking problem between the 4G/5G user and the 4G/5G network also needs to be considered necessarily for the establishment of the 5G core network element NEF or the capability open access platform.
Disclosure of Invention
The embodiment of the invention provides a method and a system for calling core network capability, which are used for at least solving the problem of 4G/5G user interoperation in a core network capability open system in the related art.
According to an embodiment of the present invention, a method for invoking core network capabilities is provided, including: the NEF or the capability open access platform receives a core network capability calling request from an application end; the NEF or the capability open access platform selects a 5G core network element or a 4G core network element which needs routing according to the core network capability calling request; the NEF or the capability open access platform sends the core network capability calling request to the selected 5G core network element or 4G core network element; and the NEF or the capability open access platform returns a core network capability calling response from the 5G core network element or the 4G core network element to the application terminal.
And the NEF or the capability open access platform and the application end interact through REST or SOAP northbound interfaces.
Wherein, the NEF or the capability open access platform selecting the 5G core network element or the 4G core network element that needs routing through a specific logic control according to the core network capability invocation request includes: and the NEF or the capability open access platform selects a 5G core network element or a 4G core network element which needs routing according to a specific network identification instruction appointed by the REST/SOAP northbound interface of the application terminal.
Wherein, the NEF or the capability open access platform selecting the 5G core network element or the 4G core network element that needs routing through a specific logic control according to the core network capability invocation request includes: the NEF or the capability open access platform pre-configures mapping relations between application types and network elements of a 5G core network and a 4G core network, wherein the mapping relations comprise mapping between the application types and IP addresses, ports and host names/domain names of the network elements of the 5G core network or the 4G core network; and the NEF or the capability open access platform performs routing attribution matching on the application type carried by the REST/SOAP northbound interface of the application terminal and a 5G core network element or a 4G core network element so as to select the 5G core network element or the 4G core network element which needs to be routed and IP address, port, host name/domain name information of the 5G core network element or the 4G core network element.
Wherein, the NEF or the capability open access platform selecting the 5G core network element or the 4G core network element that needs routing through a specific logic control according to the core network capability invocation request includes: the NEF or the capability open access platform pre-configures a mapping relation between the UE IP address and a 5G core network element or a 4G core network element, wherein the mapping relation comprises mapping between the UE IP address and the IP address, port and host name/domain name of the 5G core network element or the 4G core network element; and the NEF or the capability open access platform performs routing attribution matching on the UE IP address carried by the REST/SOAP northbound interface of the application terminal and a 5G core network element or a 4G core network element so as to select the 5G core network element or the 4G core network element which needs to be routed and IP address, port, host name/domain name information of the 5G core network element or the 4G core network element.
Wherein, the NEF or the capability open access platform selecting the 5G core network element or the 4G core network element that needs routing through a specific logic control according to the core network capability invocation request includes: the NEF or the capability open access platform queries a user network attribution specific interface of a BSF, a UDM or a HSS based on a UE IP address or an MSISDN or a GPSI or an SUPI carried by the REST/SOAP northbound interface of the application terminal to acquire a 5G core network element or a 4G core network element which needs routing and IP address, port, host name/domain name information of the 5G network element or the 4G network element.
The NEF or the capability open access platform interacts with a 5G core network element through an HTTP2.0 protocol interface, and interacts with a 4G core network element through a Diameter protocol interface.
Wherein the network element of the 5G core network comprises at least one of the following: a policy control function PCF, a unified data management UDM, an access and mobility management function AMF and a session management function SMF; the network element of the 4G core network comprises at least one of the following components: a policy and charging rule function unit PCRF, a home subscriber server HSS, a mobility management entity MME and a PDN gateway PGW.
The application terminal is a third-party application or an own application.
According to another embodiment of the present invention, there is provided a core network capability opening system, including a NEF or a capability opening access platform, wherein the NEF or the capability opening access platform includes: the receiving module is used for receiving a core network capability calling request from an application end; the logic control module is used for selecting a 5G core network element or a 4G core network element which needs routing according to the core network capability calling request; a sending module, configured to send the core network capability calling request to the selected 5G core network element or 4G core network element; and the feedback module is used for returning the core network capability calling response from the 5G core network element or the 4G core network element to the application end.
And the NEF or the capability open access platform and the application end interact through REST or SOAP northbound interfaces.
Wherein the logic control module comprises: and the first selection unit is used for selecting a 5G core network element or a 4G core network element which needs routing according to the NEF or the specific network identifier indication appointed by the capability open access platform and the application REST/SOAP northbound interface.
Wherein the logic control module comprises: the first configuration unit is used for pre-configuring the mapping relation between the application type and the network elements of the 5G core network and the network elements of the 4G core network, wherein the mapping relation comprises the mapping between the application type and the IP address, the port, the host name/domain name information of the network elements of the 5G core network or the 4G core network; and the second selection unit is used for matching the routing attribution of the application type carried by the REST/SOAP northbound interface of the application terminal with the 5G core network element or the 4G core network element so as to select the 5G core network element or the 4G core network element which needs to be routed and the IP address, the port, the host name/the domain name information of the 5G core network element or the 4G core network element.
Wherein the logic control module comprises: the second configuration unit is used for pre-configuring the mapping relationship between the UE IP address and a 5G core network element or a 4G core network element, wherein the mapping relationship comprises the mapping between the UE IP address and the IP address, the port, the host name/domain name of the 5G core network element or the 4G core network element; and the third selecting unit is used for matching the routing attribution of the UE IP address carried by the REST/SOAP northbound interface of the application terminal with a 5G core network element or a 4G core network element so as to select the 5G core network element or the 4G core network element which needs to be routed and the IP address, the port, the host name/the domain name information of the 5G core network element or the 4G core network element.
Wherein the logic control module comprises: and a fourth selecting unit, configured to perform query through a user network home specific interface of the BSF, the UDM, or the HSS based on the UE IP address, MSISDN, GPSI, or SUPI carried by the REST/SOAP northbound interface of the application terminal, to obtain a network element of the 5G core network or a network element of the 4G core network that needs routing, and IP address, port, host name, or domain name information of the network element of the 5G core network or the 4G core network.
The NEF or the capability open access platform interacts with a 5G core network element through an HTTP2.0 protocol interface, and interacts with a 4G core network element through a Diameter protocol interface.
Wherein the network element of the 5G core network comprises at least one of the following: a policy control function PCF, a unified data management UDM, an access and mobility management function AMF and a session management function SMF; the network element of the 4G core network comprises at least one of the following components: a policy and charging rule function unit PCRF, a home subscriber server HSS, a mobility management entity MME and a PDN gateway PGW.
According to a further embodiment of the present invention, there is also provided a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.
According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in any of the above method embodiments.
In the above embodiment of the present invention, a unified and open 4G/5G user interoperability is provided for a third party application and an own application to use a core network capability through a network element capability open northbound interface and a 4G/5G core network element convergence access interface provided by an NEF or a capability open access platform.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a flowchart of a core network capability invocation method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a core network capability open system structure according to an embodiment of the present invention;
fig. 3 is a flow chart of a method for implementing 4G/5G user interoperation in a core network capability open system according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a NEF or capability open access platform according to an embodiment of the present invention;
fig. 5 is a block diagram of an NEF or capability open access platform module according to an alternative embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The embodiment provides a core network capability calling method, which is applied to a 5G core network element NEF or a capability open access platform, and provides a unified and open 4G/5G user interoperation solution for third-party applications and self-owned applications to use core network capabilities through a northbound network element capability open API interface and a 4G/5G core network element convergence access interface provided by the NEF or the capability open access platform.
Fig. 1 is a flow chart according to an embodiment of the present invention, as shown in fig. 1, the flow chart includes the following steps:
step S102, the NEF or the capability open access platform receives a core network capability calling request from an application end;
step S104, the NEF or the capability open access platform selects a 5G core network element or a 4G core network element which needs routing through specific logic control according to the core network capability calling request;
step S106, the NEF or the capability open access platform sends the core network capability calling request to the selected 5G core network element or 4G core network element;
step S108, the NEF or the capability open access platform returns a core network capability call response from the 5G core network element or the 4G core network element to the application terminal.
In this embodiment, the NEF or the capability open access platform interacts with the application terminal through a REST or SOAP northbound interface.
In step S104 in this embodiment, the NEF or the capability openness access platform selects a 5G core network element or a 4G core network element that needs to be routed according to a specific network identifier indication agreed with the REST/SOAP northbound interface of the application terminal.
In step S104 of this embodiment, the NEF or the capability open access platform pre-configures a mapping relationship between an application type and a network element of a 5G core network and a network element of a 4G core network, where the mapping relationship includes mapping between the application type and IP addresses, ports, host names, and domain name information of the network element of the 5G core network or the network element of the 4G core network; and the NEF or the capability open access platform performs routing attribution matching on the application type carried by the REST/SOAP northbound interface of the application terminal and a 5G core network element or a 4G core network element so as to select the 5G core network element or the 4G core network element which needs to be routed and IP address, port, host name/domain name information of the 5G core network element or the 4G core network element.
In step S104 of this embodiment, the NEF or the capability open access platform pre-configures a mapping relationship between the UE IP address and a network element of a 5G core network or a network element of a 4G core network, where the mapping relationship includes a mapping between the UE IP address and an IP address, a port, a host name, or a domain name of the network element of the 5G core network or the 4G core network; and the NEF or the capability open access platform performs routing attribution matching on the UE IP address carried by the REST/SOAP northbound interface of the application terminal and a 5G core network element or a 4G core network element so as to select the 5G core network element or the 4G core network element which needs to be routed and IP address, port, host name/domain name information of the 5G core network element or the 4G core network element.
In step S104 in this embodiment, the NEF or the capability open access platform queries, based on the UE IP address or the MSISDN or the GPSI or the SUPI carried by the REST/SOAP northbound interface of the application, through a user network home specific interface with the BSF, the UDM, or the HSS, to obtain a network element of the 5G core network or a network element of the 4G core network that needs to be routed, and IP address, port, host name/domain name information of the network element of the 5G core or the 4G core network.
In this embodiment, the NEF or the capability open access platform interacts with a 5G core network element through an HTTP2.0 protocol interface, and interacts with a 4G core network element through a Diameter protocol interface.
In this embodiment, the network element of the 5G core network includes at least one of: a policy control function PCF, a unified data management UDM, an access and mobility management function AMF and a session management function SMF; the network element of the 4G core network comprises at least one of the following components: a policy and charging rule function unit PCRF, a home subscriber server HSS, a mobility management entity MME and a PDN gateway PGW.
In this embodiment, the application terminal is a third-party application or an own application.
In the embodiment of the invention, a more efficient, convenient and flexible 4G/5G network capacity open service facing 4G/5G user operation is provided for third-party applications and self-owned applications through the NEF or the capacity open access platform, the service comprises unified authentication, service control and routing of 4G/5G network capacity, the sales and utilization rate of 4G/5G fusion capacity is pulled, and the rapid development of the network capacity open operation of telecommunication operators is promoted.
In order to facilitate understanding of the technical solutions provided by the embodiments of the present invention, the following detailed description is given with reference to specific application examples.
FIG. 2 is a system diagram of an embodiment of the invention. The position relationship of the components of the system and the type of protocol used for the interactive messages are shown in the figure.
In this embodiment, the system includes an NEF (Network capability openness function) or a capability openness access platform, an application end (including a third-party application and an own application), a 5GC (5G Core Network, 5G Core Network element), and an EPC (Evolved Packet Core, 4G Core Network element).
The NEF or the capability open access platform is responsible for receiving a capability call request from an application end, the capability includes mobility user state monitoring and reporting, network parameter configuration, OoS policy capability, PFD management capability, traffic guidance (service routing) capability, background data transmission and the like, and after uniform authentication, service control and routing processing, the NEF or the capability open access platform selects to initiate a message request to a corresponding 5GC network element or EPC network element for processing. The application terminal interacts with the application terminal through a REST (Representational State Transfer) or SOAP (Simple Object Access Protocol) interface, interacts with the 5GC network element through an HTTP2.0 Protocol interface, and interacts with the EPC network element through a Diameter Protocol interface.
The application terminal (including the third party application and the own application) is responsible for initiating a capability calling request to the NEF or the capability open access platform, processing and receiving a response or information report returned by the NEF or the capability open access platform, and interacting with the NEF or the capability open access platform through an REST protocol interface.
The 5GC is responsible for executing the capability of the 5G core network, and interacts with the NEF or the capability open access platform through an HTTP2.0 protocol interface.
The EPC is responsible for executing the capability of the 4G core network, and interacts with the NEF or the capability open access platform through a Diameter protocol interface.
In this embodiment, the NEF or the capability open access platform may obtain a 5G core network element or a 4G core network element that a user needs to route, in the following manner, so as to implement 4G/5G user interoperation to invoke a 4G/5G network capability:
the NEF or the capability openness Access platform directly selects a 5G core Network element or a 4G core Network element that needs routing through a specific Network identifier indication that is specially agreed with an application terminal REST/SOAP northbound interface, where the specific Network elements include a 5G Policy Control Function (PCF) and a 4G Policy and Charging Rules Function (PCRF), a 5G Unified Data Management (UDM) and a 4G Home Subscriber Server (HSS), a 5G Access and Mobility Management Function (AMF) and a 4G Mobility Management Entity (Mobility Management Entity, MME), a 5G Session Management Function (Session Management Function, SMF) and a 4G Gateway (Packet Network Gateway, PDN w).
The NEF or the capability open access platform specially pre-configures a mapping relation between an application type and a 5G network element and a 4G network element, wherein the mapping relation data comprises the application type and 4G or 5G network element IP addresses, ports, host names/domain name information, the NEF or the capability open access platform automatically matches routing attributions of the 5G network element and the 4G network element through the application type carried by an application terminal REST/SOAP northbound interface, and selects a 5G core network element or a 4G core network element needing routing, wherein the routing attributions comprise the IP addresses, the ports, the host names/domain name information of the 4G or 5G network element, and the specific network elements comprise 5G PCF and 4G PCRF, 5G UDM and 4G HSS, 5G AMF and 4G MME, 5G SMF and 4G PGW and the like.
The NEF or the capability open access platform specially pre-configures the mapping relation between the UE IP address field and the 5G network element and the 4G network element, the mapping relation data comprises the UE IP address field and the IP address, the port and the host name/domain name information of the 4G or the 5G network element, the NEF or the capability open access platform automatically matches the routing attribution of the 5G network element and the 4G network element through the UE IP address carried by the application terminal REST/SOAP north interface, and finally selects the 5G core network element or the 4G core network element needing routing, the network elements comprise the IP address, the port and the host name/domain name information of the 4G or the 5G network element, and the specific network elements comprise the 5G PCF and the 4G PCRF, the 5G UDM and the 4G HSS, the 5G AMF and the 4G MME, the 5G SMF and the 4G PGW and the like.
The NEF or the capability open access platform automatically obtains a 5G core network element or a 4G core network element of a user to be routed, including IP addresses, ports, host names/domain name information of 4G or 5G network elements, including 5G PCF and 4G PCRF, 5G UDM and 4G HSS, 5G AMF and 4G MME, 5G SMF and 4G PGW, and the like, through performing real-time query with a UE IP address, or MSISDN, or GPSI, or SUPI carried by an application REST/SOAP northbound interface, through a user network home specific interface of a related system (such as BSF (Binding Support Function), UDM, HSS, and the like).
The following takes core network elements 5G PCF and 4G PCRF as examples, and a detailed description is given to a processing flow for implementing 4G/5G user interoperation and invoking 4G/5G network capability in NEF or a capability open access platform, and the following does not describe in detail a processing flow for other network elements, for example, 5G UDM and 4G HSS, 5G AMF and 4G MME, 5G SMF and 4G PGW.
As shown in fig. 3, the present embodiment mainly includes the following steps:
step S301, a user initiates a QoS resource application request applyQoSResourcerequest message to NEF or a capability open access platform through an application end;
step S302, the NEF or the capability open access platform needs to complete security authentication such as a source IP address, an account number and a secret key and SLA service control; the NEF or the capability open access platform judges whether the operation is performed by the 4G user or the 5G user, and the 4 methods are adopted to perform real-time query and matching on the user home network and acquire a 5G core network element PCF or a 4G core network element PCRF which the user needs to route;
step S303, if it is routing 5G core network element PCF, sending Npcf _ PolicyAuthorization _ Create request message, if it is routing 4G core network element PCRF, sending AAR message;
step S304, if it is 5G core network element PCF returns Npcf _ PolicyAuthorization _ Create response, if it is 4G core network element PCRF returns AAA message;
step S305, after the QoS network special load is successfully established, if the QoS network special load is reported by a 5G core network element PCF, an Npcf _ PolicyAuthorization _ Notify request is reported, and if the QoS network special load is reported by a 4G core network element PCRF, an RAR message is returned;
step S306, the NEF or the capability open access platform returns Npcf _ PolicyAuthorization _ Notify response to the 5G core network element PCF, and returns RAA message to the 4G core network element PCRF;
step S307, the NEF or the capability openness access platform returns a QoS resource application response applyQoSResourceResponse message to the user application.
In the above embodiment of the present invention, the NEF or the capability open access platform may shield the differentiated operation of the 5G core network element or the 4G core network element from the third party application and the self-owned application, so that the third party application and the self-owned application freely provide services to the 4G and 5G users.
In addition, the NEF or the capability open access platform can enable an operator to flexibly open various network capability services at the stage of coexistence of the 4G network and the 5G network, shield networking of the 4G and the 5G complex networks, reduce the threshold of third-party application and self-owned application access, and facilitate quick and efficient access.
And the NEF or the capability open access platform can provide the unified authentication, service control and routing of the capabilities of the 4G network and the 5G network for the third-party application and the self-owned application, pull the sales and utilization rate of the 4G/5G fusion capability and promote the rapid development of the capability open operation of the telecom operator.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
In this embodiment, a core network capability opening system is further provided, and the system is used to implement the foregoing embodiments and preferred embodiments, and the description already made is omitted here for brevity. As used below, the term "module" or "unit" may implement a combination of software and/or hardware of predetermined functions. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 4 is a block diagram of a core network capability opening system according to an embodiment of the present invention, and as shown in fig. 4, the system includes a NEF or a capability opening access platform, where the NEF or the capability opening access platform includes: a receiving module 10, a logic control module 20, a sending module 30 and a feedback module 40.
A receiving module 10, configured to receive a core network capability invoking request from an application end;
a logic control module 20, configured to select, according to the core network capability call request, a 5G core network element or a 4G core network element that needs to be routed through specific logic control;
a sending module 30, configured to send the core network capability invoking request to the selected 5G core network element or 4G core network element;
and the feedback module 40 is configured to return a core network capability calling response from the 5G core network element or the 4G core network element to the application terminal.
In this embodiment, the NEF or the capability open access platform interacts with the application terminal through a REST or SOAP northbound interface. The NEF or the capability open access platform interacts with a 5G core network element through an HTTP2.0 protocol interface, and interacts with a 4G core network element through a Diameter protocol interface.
In this embodiment, the network element of the 5G core network includes at least one of: a policy control function PCF, a unified data management UDM, an access and mobility management function AMF and a session management function SMF; the network element of the 4G core network comprises at least one of the following components: a policy and charging rule function unit PCRF, a home subscriber server HSS, a mobility management entity MME and a PDN gateway PGW.
Fig. 5 is a block diagram of a module structure of a core network capability opening system according to an alternative embodiment of the present invention, and as shown in fig. 5, the system may further include one or more of a first selecting unit 21, a first configuring unit 22, a second selecting unit 23, a second configuring unit 24, a third selecting unit 25, and a fourth selecting unit 26 in addition to all the modules shown in fig. 4.
A first selecting unit 21, configured to select, according to a specific network identifier indication agreed by the NEF or the capability open access platform and the REST/SOAP northbound interface of the application terminal, a 5G core network element or a 4G core network element that needs to be routed.
The first configuration unit 22 is configured to pre-configure a mapping relationship between the application type and the network elements of the 5G core network and the network elements of the 4G core network, where the mapping relationship includes mapping between the application type and IP addresses, ports, host names, and domain name information of the network elements of the 5G core network or the 4G core network.
The second selecting unit 23 is configured to perform routing attribute matching on the application type carried by the REST/SOAP northbound interface of the application terminal and a 5G core network element or a 4G core network element, so as to select the 5G core network element or the 4G core network element that needs to be routed, and the IP address, the port, the host name, and the domain name information of the 5G core network element or the 4G core network element.
The second configuration unit 24 is configured to pre-configure a mapping relationship between the UE IP address and a network element of a 5G core network or a network element of a 4G core network, where the mapping relationship includes a mapping between the UE IP address and an IP address, a port, a host name, or a domain name of the network element of the 5G core network or the network element of the 4G core network.
The third selecting unit 25 is configured to perform routing attribute matching on the UEIP address carried by the REST/SOAP northbound interface of the application terminal and a 5G core network element or a 4G core network element, so as to select the 5G core network element or the 4G core network element that needs to be routed, and the IP address, the port, the host name, and the domain name information of the 5G core network element or the 4G core network element.
The fourth selecting unit 26 is configured to perform query through a user network home specific interface of the BSF, the UDM, or the HSS based on the UE IP address or MSISDN, GPSI, or SUPI carried by the REST/SOAP northbound interface of the application terminal, so as to obtain a network element of the 5G core network or a network element of the 4G core network that needs routing, and IP address, port, host name, or domain name information of the network element of the 5G core network or the 4G core network.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
Embodiments of the present invention also provide a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.

Claims (19)

1. A method for calling core network capability is characterized by comprising the following steps:
the NEF or the capability open access platform receives a core network capability calling request from an application end;
the NEF or the capability open access platform selects a 5G core network element or a 4G core network element which needs routing through specific logic control according to the core network capability calling request;
the NEF or the capability open access platform sends the core network capability calling request to the selected 5G core network element or 4G core network element;
and the NEF or the capability open access platform returns a core network capability calling response from the 5G core network element or the 4G core network element to the application terminal.
2. The method of claim 1, wherein the NEF or capability open access platform interacts with the application through REST or SOAP northbound interfaces.
3. The method of claim 2, wherein the step of selecting, by the NEF or the capability open access platform, the 5G core network element or the 4G core network element requiring routing through a specific logic control according to the core network capability invocation request includes:
and the NEF or the capability open access platform selects a 5G core network element or a 4G core network element which needs routing according to a specific network identification instruction appointed by the REST/SOAP northbound interface of the application terminal.
4. The method of claim 2, wherein the step of selecting, by the NEF or the capability open access platform, the 5G core network element or the 4G core network element requiring routing through a specific logic control according to the core network capability invocation request includes:
the NEF or the capability open access platform pre-configures mapping relations between application types and network elements of a 5G core network and a 4G core network, wherein the mapping relations comprise mapping between the application types and IP addresses, ports and host names/domain names of the network elements of the 5G core network or the 4G core network;
and the NEF or the capability open access platform performs routing attribution matching on the application type carried by the REST/SOAP northbound interface of the application terminal and a 5G core network element or a 4G core network element so as to select the 5G core network element or the 4G core network element which needs to be routed and IP address, port, host name/domain name information of the 5G core network element or the 4G core network element.
5. The method of claim 2, wherein the step of selecting, by the NEF or the capability open access platform, the 5G core network element or the 4G core network element requiring routing through a specific logic control according to the core network capability invocation request includes:
the NEF or the capability open access platform pre-configures a mapping relation between the UE IP address and a 5G core network element or a 4G core network element, wherein the mapping relation comprises mapping between the UE IP address and the IP address, port and host name/domain name of the 5G core network element or the 4G core network element;
and the NEF or the capability open access platform performs routing attribution matching on the UE IP address carried by the REST/SOAP northbound interface of the application terminal and a 5G core network element or a 4G core network element so as to select the 5G core network element or the 4G core network element which needs to be routed and IP address, port, host name/domain name information of the 5G core network element or the 4G core network element.
6. The method of claim 2, wherein the step of selecting, by the NEF or the capability open access platform, the 5G core network element or the 4G core network element requiring routing through a specific logic control according to the core network capability invocation request includes:
the NEF or the capability open access platform queries a user network attribution specific interface of a BSF, a UDM or a HSS based on a UE IP address or an MSISDN or a GPSI or an SUPI carried by the REST/SOAP northbound interface of the application terminal to acquire a 5G core network element or a 4G core network element which needs routing and IP address, port, host name/domain name information of the 5G network element or the 4G network element.
7. The method of claim 1, wherein the NEF or the capability open access platform interacts with a 5G core network element through an HTTP2.0 protocol interface and interacts with a 4G core network element through a Diameter protocol interface.
8. The method of claim 1, wherein the 5G core network element comprises at least one of: a policy control function PCF, a unified data management UDM, an access and mobility management function AMF and a session management function SMF; the network element of the 4G core network comprises at least one of the following components: a policy and charging rule function unit PCRF, a home subscriber server HSS, a mobility management entity MME and a PDN gateway PGW.
9. The method of claim 1, wherein the application side is a third party application or an owned application.
10. A core network capability opening system, comprising a NEF or a capability opening access platform, wherein the NEF or the capability opening access platform comprises:
the receiving module is used for receiving a core network capability calling request from an application end;
the logic control module is used for selecting a 5G core network element or a 4G core network element which needs routing through specific logic control according to the core network capability calling request;
a sending module, configured to send the core network capability calling request to the selected 5G core network element or 4G core network element;
and the feedback module is used for returning the core network capability calling response from the 5G core network element or the 4G core network element to the application end.
11. The system of claim 10, wherein the NEF or capability open access platform interacts with the application through REST or SOAP northbound interfaces.
12. The system of claim 11, wherein the logic control module comprises:
and the first selection unit is used for selecting a 5G core network element or a 4G core network element which needs routing according to the NEF or the specific network identifier indication appointed by the capability open access platform and the application REST/SOAP northbound interface.
13. The system of claim 11, wherein the logic control module comprises:
the first configuration unit is used for pre-configuring the mapping relation between the application type and the network elements of the 5G core network and the network elements of the 4G core network, wherein the mapping relation comprises the mapping between the application type and the IP address, the port, the host name/domain name information of the network elements of the 5G core network or the 4G core network;
and the second selection unit is used for matching the routing attribution of the application type carried by the REST/SOAP northbound interface of the application terminal with the 5G core network element or the 4G core network element so as to select the 5G core network element or the 4G core network element which needs to be routed and the IP address, the port, the host name/the domain name information of the 5G core network element or the 4G core network element.
14. The system of claim 11, wherein the logic control module comprises:
the second configuration unit is used for pre-configuring the mapping relationship between the UE IP address and a 5G core network element or a 4G core network element, wherein the mapping relationship comprises the mapping between the UE IP address and the IP address, the port, the host name/domain name of the 5G core network element or the 4G core network element;
and the third selecting unit is used for matching the routing attribution of the UE IP address carried by the REST/SOAP northbound interface of the application terminal with a 5G core network element or a 4G core network element so as to select the 5G core network element or the 4G core network element which needs to be routed and the IP address, the port, the host name/the domain name information of the 5G core network element or the 4G core network element.
15. The system of claim 11, wherein the logic control module comprises:
and a fourth selecting unit, configured to perform query through a user network home specific interface of the BSF, the UDM, or the HSS based on the UE IP address, MSISDN, GPSI, or SUPI carried by the REST/SOAP northbound interface of the application terminal, to obtain a network element of the 5G core network or a network element of the 4G core network that needs routing, and IP address, port, host name, or domain name information of the network element of the 5G core network or the 4G core network.
16. The system according to claim 10, wherein the NEF or the capability open access platform interacts with 5G core network elements through an HTTP2.0 protocol interface and interacts with 4G core network elements through a Diameter protocol interface.
17. The system of claim 10, wherein the 5G core network element comprises at least one of: a policy control function PCF, a unified data management UDM, an access and mobility management function AMF and a session management function SMF; the network element of the 4G core network comprises at least one of the following components: a policy and charging rule function unit PCRF, a home subscriber server HSS, a mobility management entity MME and a PDN gateway PGW.
18. A computer-readable storage medium, in which a computer program is stored, wherein the computer program is arranged to perform the method of any of claims 1 to 9 when executed.
19. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1 to 9.
CN201910945804.1A 2019-09-30 2019-09-30 Method and system for calling core network capability Pending CN112583628A (en)

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