CN110519749A

CN110519749A - A kind of API information transmission method and device

Info

Publication number: CN110519749A
Application number: CN201810491022.0A
Authority: CN
Inventors: 朱强华; 阎亚丽; 朱奋勤
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-05-21
Filing date: 2018-05-21
Publication date: 2019-11-29
Anticipated expiration: 2038-05-21
Also published as: CN110519749B; WO2019223638A1

Abstract

This application discloses a kind of API information transmission method and devices.In this method, first network equipment receives the first request that second network equipment is sent, and includes the mark of terminal or the mark of set of terminal in first request, which is used for the API information of the request third network equipment；First network equipment sends the first instruction information to second network equipment, the first instruction information includes API information, the API information is what the network type accessed according to the corresponding terminal of terminal iidentification determined, or was determined according to the network type that the corresponding set of terminal of terminal group identification is accessed.Pass through the above method, second network equipment is enabled to get the API information determined according to the access network type of terminal or set of terminal, it helps avoid second network equipment to have invoked with the API of accessing terminal to network type mismatch and the case where business service can not be provided for terminal, is conducive to improve user experience.

Description

A kind of API information transmission method and device

Technical field

This application involves field of communication technology more particularly to a kind of API information transmission methods and device.

Background technique

In traditional network, in evolved packet system (evolved packet system, EPS), service ability is open Functional network element (service capability exposure function, SCEF) can pass through application programming interface The form of (application programming interface, API) opens 4G network function to third-party application.Fig. 1 is real Example property gives the framework of SCEF a kind of, and third party application can be by calling the API in SCEF to obtain the phase of terminal Close information.

In new mobile communication system, such as in 5G network shown in Fig. 2, network opening functional network element (network Exposure function, NEF) 5G network function can also be opened to third-party application by way of API, that is, third party Using the relevant information that can obtain terminal by the API in calling NEF.

For supporting the terminal of 4G, 5G access that may make end due to factors such as the movement of terminal, network coverages End switches between 4G and 5G, causes third-party application that can not provide business service for terminal, causes poor user's body It tests.

Summary of the invention

The application provides a kind of API information transmission method and device, with to avoid calling accessing terminal to network type mismatch API and lead to not the case where providing business service for third-party application.

In a first aspect, this application provides a kind of API information transmission methods, this method comprises:

First network equipment receives the first request that second network equipment is sent, and includes the mark of terminal in first request Or the mark of set of terminal, first request are used for the API information of the request third network equipment.First network equipment is to second The network equipment sends the first instruction information, which includes API information, which accessed according to terminal What network type determined, or determined according to the network type of set of terminal access.

In the above embodiments of the present application, second network equipment can get the network according to terminal or set of terminal access The API information that type is determined helps avoid second network equipment and calls when providing business service for terminal and terminal The API that network type is not consistent leads to that possibly terminal related information can not be got, and then can not provide business service for terminal The case where, thus above-described embodiment is conducive to improve user experience.

In one possible implementation, the above method further include: first network equipment obtains terminal or set of terminal is worked as The network type of preceding access, then first network equipment determines API information according to the network type got.

In one possible implementation, the network class that first network equipment is currently accessed in acquisition terminal or set of terminal When type, it can be obtained by receiving the second indication information that the third network equipment is sent, include terminal in the second indication information Or the network type that set of terminal is currently accessed.The third network equipment can inquire the network class that terminal or set of terminal are currently accessed The network type inquired is sent to first network equipment by type, the third network equipment, so that first network equipment is according to network Type determines API information.

In one possible implementation, first network equipment, can be to third before receiving second indication information The network equipment sends the second request, includes the mark of terminal or the mark of set of terminal in second request.Specifically, this second is asked The network type that can be used for request terminal or set of terminal access is sought, alternatively, can be used for the request third network equipment When the network type that terminal or set of terminal access changes, terminal is sent to first network equipment or set of terminal is currently accessed Network type.In the above-described embodiments, first network equipment can inquire terminal or set of terminal currently connects according to actual needs The network type or the long-term network type subscribing to terminal or set of terminal and being currently accessed entered, determines corresponding API letter to facilitate Breath.

In one possible implementation, the above method further include: the first network equipment receives third network and sets The third that preparation is sent indicates information, and the third instruction information includes the API information.In such implementation, the first net Network equipment can receive the API information of third network equipment transmission, can no longer need first network equipment according to terminal or end The network type of end group access determines API information, reduces the load of first network equipment.

In one possible implementation, the third that the third network equipment is sent is received in the first network equipment to refer to Before showing information, the method also includes: the first network equipment sends third request to the third network equipment；It is described The API information that third request is determined for request according to the network type that the terminal or the set of terminal access；Alternatively, For requesting when the API information changes, Xiang Suoshu first network equipment sends the API letter for the third request Breath.In such implementation, the API information that first network equipment can be current with request also requests the third network equipment API information is sent when API information sends and changes, the demand of different scenes can be flexibly met.

In one possible implementation, first request refers to for API information described in request, described first Show that information carries in the response message to first request；Alternatively, first request is for requesting in the API information When changing, second network equipment of Xiang Suoshu sends API information.In the above-described embodiments, second network equipment can basis Actual demand inquires current API information or subscribes to API information for a long time, calls API to facilitate.

Second aspect, the embodiment of the present application provide a kind of first network equipment, including processor, memory and communication connect Mouthful, for the memory for storing program, the processor calls the program of memory storage, executes such as the by communication interface On the one hand the process that first network equipment executes in any one the method.

The third aspect, the embodiment of the present application provide a kind of third network equipment, including processor, memory and communication connect Mouthful, for the memory for storing program, the processor calls the program of memory storage, executes such as the by communication interface The process that the third network equipment executes in one side.

Fourth aspect, the embodiment of the present application provide a kind of communication system, set including first network described in second aspect The third network equipment described in the standby and third aspect, alternatively, may include first network equipment and the 4th described in second aspect The third network equipment described in aspect.

5th aspect, the embodiment of the present application provide a kind of computer readable storage medium, the computer-readable storage Media storage has computer instruction, when described instruction is run on computers, so that computer is executed as appointed in first aspect Method described in one.

6th aspect, the embodiment of the present application provide a kind of chip system, comprising: processor, for supporting that communication equipment is real The existing above-mentioned described in any item methods of first aspect.

Detailed description of the invention

Fig. 1 is SCEF configuration diagram provided by the embodiments of the present application；

Fig. 2 is 5G network architecture schematic diagram provided by the embodiments of the present application；

Fig. 3 is 4G and 5G network architecture schematic diagram provided by the embodiments of the present application；

Fig. 4 is SCEF+NEF functional schematic provided by the embodiments of the present application；

Fig. 5 is the network architecture schematic diagram provided by the embodiments of the present application including CAPIF network element；

Fig. 6 is one of API information transmission method flow diagram provided by the embodiments of the present application；

Fig. 7 is the two of API information transmission method flow diagram provided by the embodiments of the present application；

Fig. 8 is the three of API information transmission method flow diagram provided by the embodiments of the present application；

Fig. 9 is the four of API information transmission method flow diagram provided by the embodiments of the present application；

Figure 10 is the five of API information transmission method flow diagram provided by the embodiments of the present application；

Figure 11 is the six of API information transmission method flow diagram provided by the embodiments of the present application；

Figure 12 is a kind of one of network equipment infrastructure schematic diagram provided by the embodiments of the present application；

Figure 13 is the two of a kind of network equipment infrastructure schematic diagram provided by the embodiments of the present application；

Figure 14 is the three of a kind of network equipment infrastructure schematic diagram provided by the embodiments of the present application.

Specific embodiment

In order to keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with attached drawing to the application make into One step it is described in detail.

Fig. 3 illustratively gives a kind of network system architecture schematic diagram, as shown, terminal accesses evolution block core When net (evolved packet core, EPC), third-party application can pass through service capability server (services Capability server, SCS) or application server (application server, AS) etc. realize；Third-party application The information in relation to terminal can be obtained from EPC by SCEF.When terminal accesses the 5th Generation Mobile Communication System core net (5^th Generation core, 5GC) when, third-party application can be real by application function (application function, AF) It is existing；Third-party application can obtain the information in relation to terminal by NEF from 5GC.

In order to be compatible with EPC and 5GC, the open network element of ability such as SCEF, NEF, or is provided with SCEF functional module and NEF The network equipment (hereinafter referred to as SCEF+NEF) of functional module can pass through two ways reality when providing API for third-party application It is existing, as shown in Figure 4.In mode one, SCEF and NEF can provide respective API respectively, i.e., respectively provide 4G network AP I and 5G network AP I.In mode two, the API of a set of enhancing can be provided on SCEF, receiving 5G network AP I call request When forward a request to NEF；Or the API of a set of enhancing can also be provided on NEF, it is asked receiving 4G network API Calls SCEF is forwarded a request to when asking；Alternatively, can also be arranged in SCEF+NEF only can be 4G net for SCEF+NEF Network provide service module, only can be the module of 5G network offering services and can be 4G and 5G network offering services mould Request is transferred to corresponding resume module after receiving 4G or 5G network AP I call request by block.

However, third-party application does not know the network change situation of terminal access, after terminal switches to 4G from 5G, if API in AF still request call NEF possibly can not then get the information of terminal, alternatively, after terminal switches to 5G from 4G, If the API in still request call SCEF, it is also possible to end message can not be got.

In order to solve the above-mentioned technical problem, the embodiment of the present application provides a kind of network architecture including CAPIF network element, such as Shown in Fig. 5, wherein CAPIF network element can be communicated with the open network element of ability, third-party application.Based on the net for supporting CAPIF Network framework, third-party application can request CAPIF to provide API information, call to avoid third-party application in request call API Not available API.

Specifically, Fig. 6 is a kind of flow diagram of API information transmission method provided by the embodiments of the present application, as schemed institute Show, this method may comprise steps of:

Step 601, first network equipment receive the first request that second network equipment is sent.Wherein, it is used in the first request In the API information of the request third network equipment.

It wherein, may include terminal iidentification in first request, i.e. first request is other for request terminating stage API information, alternatively, may include terminal group identification in first request, i.e. first request is used for request set of terminal grade Other API information.

Step 602, first network equipment send the first instruction information to second network equipment, wrap in the first instruction information Include API information.

Wherein, API information can be available the mark of API, to indicate that second network equipment can call these API The corresponding API of mark.Alternatively, API information is also possible to not available API mark, to indicate that second network equipment is unavailable These API are called to identify corresponding API.Or API information can also include API mark and the status information of API.Tool Body, the status information of API can serve to indicate that available or unavailable.Alternatively, the status information of API can serve to indicate that hang-up (suspended) or restore (resumed), wherein hanging up indicates temporarily unavailable, for example, when terminal is due to conversing from 4G net When network falls back to 2G network, the 4G network session and relevant bearer of terminal will be suspended, when terminal call terminates, 4G network session And relevant bearer will be resumed.Alternatively, the status information of API may be used to indicate that service level information, for example, API_1 can The terminal of service access EPC, corresponding rank are the terminal that 1, API_2 can service access 5GC, and corresponding rank is 2, API_3 The terminal of access 5GC or EPC can be serviced, corresponding rank is 3；Enable second network equipment according to the seeervice level of API Available API is not determined.

When including terminal iidentification in the first request, then the API information for including in the first instruction information, is according to terminal Identify what the network type that corresponding terminal is accessed was determined；When including terminal group identification in the first request, then first It indicates the API information for including in information, is that the network type accessed according to the terminal that set of terminal includes is determined.For example, Second network equipment can obtain API information relevant to each terminal when there is the business demand of a small amount of terminal respectively, that is, It include the mark of one or more terminals in each first request；In another example second network equipment can also have great amount of terminals Business demand when, API information of the request about one or more set of terminal, that is, it is each first request in may include The mark of one or more set of terminal.

Specifically, terminal access network type, can for terminal access core net type (CN type), as 5GC, The type of 3GPP core net or its group such as EPC, EPC and 5GC, non-5GC (Non-5GC), 5G, 4G, 3G, non-5G (Non-5G) It closes.Wherein, the core net type that a terminal is accessed can be 5GC or EPC, alternatively, for can simultaneously in 4G network and The core net type of the terminal of 5G network registry, access may be 5GC and EPC.The network type of terminal access can be with It is following one or combination: universal land radio access web (universal terrestrial radio access Network, UTRAN), 2000, global mobile communication CDMA (code division multiple access, CDMA) System Radio Access Network (GSM/EDGE radio access network, GERAN), long term evolution (long term Evolution, LTE), 5G newly eat dishes without rice or wine (new radio, NR), the UTRAN of evolution, Next-Generation network (next Generation radio access network, NG-RAN) etc. 3GPP wireless access technology (radio access Technology, RAT) type etc..

It include multiple terminals in one set of terminal, the core net type that multiple terminal is accessed may be identical, it is also possible to It is different.Therefore, in the API information determined of network type accessed according to set of terminal, when terminal access all in set of terminal Network type it is identical when, then this set of terminal access network type be terminal access network type；When the end in set of terminal Terminate into network type it is not exactly the same when, then the access style of this set of terminal be all terminals access network type group It closes；For example, all terminals all access EPC in set of terminal, then the network type of set of terminal access is EPC；As fruit part terminal connects Enter EPC, part terminal accesses 5GC, then the network type of set of terminal access is EPC+5GC.

In the above-mentioned methods, first network equipment can be the public API architecture of 3GPP (common API framework For3GPP northbound APIs, CAPIF) core function network element.Second network equipment can be the business energy in 4G network Power server (services capability server, SCS) or application server (application server, AS) etc. Network element, or, or the network elements such as application function (application function, AF) in 5G network, alternatively, may be used also To be the network element device that can be used for supporting third-party application in other following communication networks.The third network equipment can be SCEF, Perhaps NEF or it can also be that SCEF and NEF close the network equipment (hereinafter referred to as SCEF+NEF) set.

Third-party application (second network equipment) may need the core accessed from terminal when providing business service for terminal The relevant information of terminal is obtained in net (EPC, 5GC etc.), if terminal has been carried out network switching, and third-party application is still called and cut API in network before changing obtains end message, then possibly can not obtain information needed, to can not be taken for terminal by business Business.And in the above embodiments of the present application, second network equipment can get the network class according to terminal or set of terminal access The API information that type is determined helps avoid second network equipment and calls when providing business service for terminal and the net of terminal The API that network type is not consistent leads to that possibly terminal related information can not be got, and then can not provide business service for terminal Situation, thus above-described embodiment is conducive to improve user experience.

In some embodiments, the first request in above-mentioned steps 601, can be for request API information, example Such as, second network equipment perhaps when preset timer time-out or can be received and be used to indicate when there is business demand When the instruction information that API tenability changes, the first request, such as service discovery request are sent to first network equipment (service discover request), obtains current API information.First network equipment is receiving above-mentioned first After request, obtains current API information and be sent to second network equipment；Further, first network equipment can also basis Agreement provides or different business demands, and after API information changes, the API information after variation is sent to the second network Equipment.

In other embodiments, the first request can be used for request when API information sends and changes, to the second net Network equipment sends API information.For example, second network equipment can send event subscription requests (event to first network equipment Subscribe request), it may include event instruction information and terminal iidentification or terminal group identification in the request；Its In, event instruction information indicates that the event to pull subscription is API information change events.Correspondingly, first network equipment is in API When information changes, then execute above-mentioned steps 602.

Wherein, the information of API can be related to the network type that terminal or set of terminal access, when terminal or set of terminal access Network type when changing, then the status information that may cause API changes, as previously mentioned, terminal can when accessing EPC Available API may be different when API is from access 5GC.And the network for the one or more terminals access for including in set of terminal Type changes, then may cause the corresponding API information of set of terminal and change.The information of API can also and other factors Correlation, for example, it is related to the type of service of terminal, then then may cause API's when the type of service of terminal changes Status information changes；In another example it is unavailable that certain API may be also resulted in due to the adjustment of network function, or increase new API etc..

Optionally, first network equipment can pull subscription above-mentioned information change event relevant to API information, and connect After receiving the report of subscription event, determine whether API information changes.Alternatively, first network equipment can also be looked into periodically Information relevant to API information is ask, and determines whether API information changes.

In one possible implementation, the API information for including in above-mentioned first instruction information, is first network equipment It is determined according to the network type that the terminal or set of terminal that get are currently accessed.For example, if first network equipment is got The network that terminal A is currently accessed is EPC, then first network equipment can determine that the API in SCEF is available API, i.e. third party The relevant information of terminal A is obtained using the API that can be called in SCEF；In addition, if the API shared there is also SCEF and NEF, the One network equipment can also determine that these shared API are available API.In another example if first network equipment gets terminal B and works as The network of preceding access is 5GC, then first network equipment can determine that the API in NEF is available API, i.e. third-party application can be with The API in NEF is called to obtain the relevant information of terminal B；In addition, if there is also the API that SCEF and NEF is shared, first network is set It is standby that can also be determined as these shared API can be with API.

Specifically, first network equipment can obtain the network that terminal or set of terminal are currently accessed by following four mode Type:

Mode one, first network equipment send to the third network equipment and request, and request terminal or set of terminal currently connect The network type entered.The third network equipment is after receiving above-mentioned request, network type that terminal or set of terminal are currently accessed It is sent to first network equipment.Optionally, first network equipment can be sent out after above-mentioned steps 601 to the third network equipment Request is sent, to obtain network type.

For example, first network equipment receive second network equipment transmission first request after, can be to third network Equipment sends core net type queries request (CN type query request), may include the mark of terminal in the request, That is the core net type of request terminal access；It also may include the mark of set of terminal in the request, i.e., request should The core net type that the terminal for including in set of terminal is accessed.The third network equipment is in the core for getting terminal or set of terminal access After heart net type, core net type queries response (CN type query response), the sound are sent to first network equipment Core net type in answering comprising getting.

Optionally, the third network equipment, can be from core net after the above-mentioned request for receiving the transmission of first network equipment In other network elements obtain terminal or set of terminal access network type.For example, the third network equipment can be with the access in 5GC With mobile management function to ps domain (access and mobility management function, AMF), policy control functions The nets such as (policy control function, PCF) or uniform data management (unified data management, UDM) Member is communicated, to obtain the core net type of terminal or set of terminal access；Alternatively, the third network equipment can also be with EPC In mobility management entity (mobility management entity MME), Serving GPRS Support Node (serving GPRS supporting node, SGSN), home subscriber server (home subscribe user, HSS) or strategy and meter Take the network elements such as rule functional (policy and charging rules function, PCRF) to be communicated, to obtain end The core net type of end or set of terminal access；In addition, the third network equipment can also obtain eventually from HSS+UDM or PCF+PCRF The core net type of end or set of terminal access.

Mode two, first network equipment send to the third network equipment and request, and request the third network equipment at terminal or end When the network type of end group access changes, the network class that terminal or set of terminal are currently accessed is sent to first network equipment Type, that is, first network device request subscribes to the network type change events of terminal or set of terminal access.The third network equipment is connecing After receiving above-mentioned request, when the network type for finding that the terminal for including in terminal or set of terminal is accessed changes, then to First network equipment sends instruction information, the network type being currently accessed with instruction terminal or set of terminal.

For example, first network equipment can send event subscription requests (event subscribe to the third network equipment It request), may include event instruction information and terminal iidentification or terminal group identification in the request；Wherein, which refers to Show that information indicates that the event to pull subscription is the network type change events that terminal or set of terminal access.The third network equipment is obtaining After getting terminal or the changed information of network type of set of terminal access, subscription event report is sent to first network equipment It accuses, may include terminal iidentification or terminal group identification, and the network type being currently accessed in this report.

Optionally, first network equipment can send to the third network equipment and request after above-mentioned steps 601, so that Current network type occurs to first when the network type that terminal or set of terminal access changes for the third network equipment The network equipment.For example, first network equipment can receive the event subscription requests of second network equipment transmission (for requesting The API information after variation is sent when API information changes) after, event subscription requests are sent (for requesting net to the third network equipment Network type sends current network type when changing).Alternatively, first network equipment can also be actively to the third network equipment Request is sent, so that the third network equipment is when the network type that terminal or set of terminal access changes, by current network Type occurs to give first network equipment.Or first network equipment can also need to obtain eventually providing other business services When the network type of end or set of terminal access, the request of above-mentioned subscription network type change events is sent to the third network equipment.

The method that the third network equipment obtains the network type of terminal or set of terminal access, it is similar with mode one, herein It repeats no more.The third network equipment sends out network type after the network type for determining terminal or set of terminal access changes The terminal or the mark of set of terminal, current network type for changing occur to give first network equipment.First network equipment can be with By the storage corresponding with network type of the mark of terminal or set of terminal, hereafter to receive the acquisition of second network equipment transmission When the request of API information, API information can be determined according to the terminal of storage or the network type of set of terminal, without again to The inquiry of three network equipments.

Mode three, first network equipment can send the network type of request, request terminal or set of terminal access, the Three network equipments can be provided according to agreement or different business demands, become in the network type that terminal or set of terminal access After change, the network type after variation is sent to first network equipment.What third network equipment acquisition terminal or set of terminal accessed The method of network type, it is similar with mode two.First network equipment can by the mark of the terminal received or set of terminal with The corresponding storage of network type.

Mode four, the third network equipment actively can will when the network type that terminal or set of terminal access changes Network type after variation is sent to first network equipment.The third network equipment obtains the network type of terminal or set of terminal access Method, it is similar with mode one.First network equipment can be by the terminal received or the mark and network type of set of terminal Corresponding storage.

In alternatively possible implementation, the API information for including in above-mentioned first instruction information is also possible to first What the network equipment obtained from the third network equipment.Specifically, first network equipment can also obtain API letter by three kinds of modes Breath:

Mode one, first network equipment send to the third network equipment and request, and request is worked as according to terminal or set of terminal The API information that the network type of preceding access determines.The third network equipment upon receiving the request, obtains terminal or set of terminal is worked as The network type of preceding access, and current API information is determined according to the network type got, then the API determined is believed Breath is sent to first network equipment.Wherein, the method that the third network equipment obtains the network type of terminal or set of terminal access, with Previous embodiment is similar.

Mode two, first network equipment send to the third network equipment and request, and request when API information changes, to First network equipment sends current API information.

As previously mentioned, the variation of API information, it may be possible to since the network type that terminal or set of terminal access changes It is caused, it is also possible to as caused by the factors such as terminal traffic type or network function adjustment.Specifically, the third network equipment Information change event relevant to API information can be subscribed to, and after receiving the report of subscription event, whether determines API information It changes, alternatively, information relevant to API information can also be inquired periodically, and determines whether API information becomes Change.Specifically, the third network equipment can subscribe to information change event relevant to the network type of terminal or set of terminal access, And after receiving the report of subscription event, the network type that terminal or set of terminal are currently accessed is obtained, determines whether API information is sent out Changing obtains terminal alternatively, information relevant to the network type of terminal or set of terminal access can also be inquired periodically Or the network type that set of terminal is currently accessed, and determine whether API information changes.The third network equipment is determining API letter When breath changes, the API information after terminal or terminal group identification, and variation is sent to first network equipment.

First network equipment can be by the storage corresponding with API information of the terminal received or terminal group identification, so as to hereafter When receiving the request of the acquisition API information of second network equipment transmission, corresponding API information can be read from memory simultaneously It is sent to second network equipment, without inquiring again to the third network equipment.

Mode three, first network equipment can send request, the net that request is currently accessed according to terminal or set of terminal The API information that network type determines, the third network equipment can be provided according to agreement or different business demands, sends out in API information It will after variation be that API information is sent to first network equipment after changing.The third network equipment determines whether API information becomes The mode of change, it is similar with mode two.First network equipment can be by the terminal received or terminal group identification and API information pair It should store.

Mode four, the third network equipment actively can also believe the API after variation when determining that API information sends variation Breath is sent to first network equipment.For example, the third network equipment can subscribe to the network type phase with terminal or set of terminal access The information change event of pass, and after receiving the report of subscription event, the network type that terminal or set of terminal are currently accessed is obtained, Determine whether API information changes, alternatively, the network type phase with terminal or set of terminal access can also be inquired periodically The information of pass obtains the network type that terminal or set of terminal are currently accessed, and determines whether API information changes.

In order to be clearer to understand the above embodiments of the present application, 7 to attached drawing 11 it is illustrated with reference to the accompanying drawing.

Referring to Fig. 7, API information transmission method provided by the embodiments of the present application may include step as shown in Figure 7:

Step 701, initial phase, ability open network element (NEF, SCEF or SCEF+NEF) send service hair to CAPIF Cloth requests (service publish request), may include service name (service name) in the request.

It can also include the corresponding core net class of service name in above-mentioned request when the open network element of ability is SCEF+NEF Type (CN type), such as service item 1 are provided by EPC, and service item 2 is provided by 5GC；When the open network element of ability be NEF or When SCEF, CN type can not be carried in above-mentioned request, CAPIF can sentence according to the mark of the NEF or SCEF that carry in request Disconnected CN type out, for example, it is 5GC that NEF, which identifies corresponding CN type, the corresponding CN type of SCEF is EPC.

Step 702, CAPIF save registration information, such as above-mentioned terminal or terminal group identification, service name and core net Type.

Step 703, third-party application (AF, SCS or AS) send event subscription requests (event to CAPIF Subscription request), it may include service API ability information (availability of service in the request APIs) and terminal or terminal group identification, wherein service API ability information is for indicating subscription service API information change events, That is request CAPIF sends current API information to third-party application when API information changes.

Step 704, CAPIF open network element to ability and send event subscription requests or monitoring request (monitoring It request), include core net Change of types information (CN type change) and terminal or terminal group identification in the request, Wherein, core net Change of types information subscribes to core net Change of types event for indicating, i.e. the open network element of request ability is at end When the core net type of end or set of terminal access changes, current core net type is sent to CAPIF.

The open network element of step 705, ability monitors core net Change of types event.Specifically, the open network element of ability can be from Monitor terminal or the core net of set of terminal access at AMF, MME, SGSN, PCF, PCRF, PCF+PCRF, HSS, UDM or HSS+UDM Whether type changes.

The open network element of step 706, ability sends subscription event to CAPIF after listening to core net type and changing Report or snoop responses (monitoring response) or other instruction information, by terminal or terminal group identification, core net class Core net type notification after type variation instruction information and/or variation is to CAPIF.

The information that step 707, CAPIF are sent according to the open network element of ability, determines the core that terminal or set of terminal are currently accessed Heart net type, and API information is determined according to core net type.

Specifically, the API information that CAPIF is determined can be with API status information.Wherein, API status information can indicate API It can use or unavailable, perhaps indicate to hang up (suspended) or restore (resumed) or indicate service level information.

Step 708, CAPIF send event to third-party application and notify (event notification) report, this report In may include terminal or terminal group identification and API information.Specifically, the API information for including in this report may include can API mark, or identified including not available API, it include that API is marked in the list alternatively, also may include API list Knowledge and corresponding status information.

Step 709, third-party application call available API to provide for terminal or set of terminal according to the API information got Business service.

Referring to Fig. 8, API information transmission method provided by the embodiments of the present application also may include step as shown in Figure 8:

Step 801~802, it is similar with abovementioned steps 701~702, it repeats no more.

Step 803, third-party application (AF, SCS or AS) send service discovery request (service to CAPIF Discover request), it may include terminal or terminal group identification in the request, so that CAPIF feedback is according to about terminal Or the API information of set of terminal.

Step 804, CAPIF open network element to ability and send core net type queries request (CN type query It request), may include terminal or terminal group identification in the request, so that the open network element feedback terminal of ability or set of terminal are worked as The core net type of preceding access.

The core net type that the open network element inquiry terminal of step 805, ability or set of terminal are currently accessed.Specifically, ability Open network element can inquire terminal or terminal from AMF, MME, SGSN, PCF, PCRF, PCF+PCRF, HSS, UDM or HSS+UDM The core net type of group access.

The open network element of step 806, ability sends core net type queries to CAPIF and responds (CN type query Response), the core net type being currently accessed in the response including terminal or set of terminal.

Step 807, CAPIF determine API information according to the core net type got.

Step 808, CAPIF send service discovery response (service discover response) to third-party application, It may include available API mark in the response, or identified including not available API, alternatively, also may include API list, It include API mark and corresponding status information in the list.

Step 809, third-party application call available API to provide for terminal or set of terminal according to the API information got Business service.

Referring to Fig. 9, API information transmission method provided by the embodiments of the present application also may include step as shown in Figure 9:

Step 901~902, it is similar with abovementioned steps 701~702, it repeats no more.

Step 903 (step is option), CAPIF open network element to ability and send user information (user Information), include terminal or terminal group identification in the information, subscribe to for opening network element to ability about above-mentioned terminal Or the API information change events of set of terminal.

Step 904, if it exists above-mentioned steps 903, the open network element of ability monitor above-mentioned terminal or set of terminal core network access Change of types event；Above-mentioned steps 903 if it does not exist, the open network element of ability monitor each terminal or set of terminal core network access class Type change events.

The open network element of step 905, ability changes in the core net type for listening to some terminal or set of terminal access Afterwards, it according to the core net type after variation, determines about the terminal or the API information of set of terminal.

The open network element of step 906, ability sends service posting request to CAPIF or updates request (update It request), may include API mark, terminal or terminal group identification and API information in above-mentioned request.Wherein, API information packet Include the status information of API.

CAPIF stores service name, terminal or the terminal group identification and API information that receive.For example, CAPIF can store API mark and terminal corresponding with API mark or terminal Groups List, which includes available or can not Terminal/terminal group identification.

Step 907, CAPIF receive the event subscription requests or service discovery of third-party application (AF, SCS or AS) transmission Request.Wherein, event subscription requests may include service API ability information and terminal or terminal group identification, service API ability Information is for indicating that subscription service API information change events, i.e. request CAPIF are answered when API information changes to third party With the current API information of transmission；It may include terminal or terminal group identification in service discovery request, so that CAPIF feedback is according to pass In terminal or the API information of set of terminal.

Step 908, CAPIF obtain corresponding with the terminal or set of terminal indicated in step 907 from stored API information API information.

Step 909, CAPIF send the report of event notice or service discovery response, this report or response to third-party application In include the API information that gets in step 908.

Step 910, third-party application call available API to provide for terminal or set of terminal according to the API information got Business service.

Referring to Figure 10, API information transmission method provided by the embodiments of the present application also may include step as shown in Figure 10:

Step 1001~1003, it is similar with abovementioned steps 701~703, it repeats no more.

Step 1004, CAPIF open network element to ability and send the request of API tenability information subscribing, event subscription requests Or monitor request.Wherein, if sending the request of API tenability information subscribing, which includes terminal or set of terminal to be checked Mark；It include API tenability change information (API support in request if sending time subscribes to request or monitors request Capability change) and terminal or terminal group identification, API tenability change information subscribe to API information for indicating Change events, the i.e. open network element of request ability send the API information after variation to CAPIF when API information changes.

The open network element of step 1005, ability monitors above-mentioned terminal or set of terminal core network access Change of types event.

Step 1006, ability open network element after the core net type for listening to terminal or set of terminal access changes, According to the core net type after variation, determine about the terminal or the API information of set of terminal.

The open network element of step 1007, ability carries terminal or terminal group identification and the API information determined in API CAPIF is sent in the message such as tenability state notifying, event subscription report or snoop responses.

Step 1008~1009, it is similar with abovementioned steps 708~709, it repeats no more.

Referring to Figure 11, API information transmission method provided by the embodiments of the present application can also include the steps that as shown in figure 11:

Step 1101~1102, it is similar with abovementioned steps 701~702, it repeats no more.

Step 1103, third-party application (AF, SCS or AS) send service discovery request (service to CAPIF Discover request), it may include terminal or terminal group identification in the request, so that CAPIF feedback is according to about terminal Or the API information of set of terminal.

Step 1104, CAPIF open network element to ability and send API tenability inquiry request, which includes above-mentioned end End or terminal group identification, so that the API information about above-mentioned terminal or set of terminal is sent to CAPIF by the open network element of ability.

The core net type that the open network element inquiry terminal of step 1105, ability or set of terminal are currently accessed.

The open network element of step 1106, ability is determined according to the core net type inquired about above-mentioned terminal or set of terminal API information.

The open network element of step 1107, ability sends API tenability inquiry response to CAPIF, includes step in the response The API information determined in 1106.

Step 1108, CAPIF send service discovery response to third-party application, include what CAPIF was received in the response API information, API information can specifically include available API mark, or include not available API mark, alternatively, can also be with It include API mark and corresponding status information in the list including API list.

According to the API information got, calling available API is that terminal or set of terminal mention for step 1109, third-party application For business service.

Based on the same technical idea, the embodiment of the present application also provides a kind of network equipments, for realizing the above method Function performed by first network equipment in embodiment.Specifically, the structure of the network equipment is shown in Fig.12, including is connect Unit 1201 is received, transmission unit 1202 can further include processing unit 1203.

Wherein, receiving unit 1201 is used to receive the first request of second network equipment transmission, wraps in first request Include the mark of terminal or the mark of set of terminal, the information of API of first request for the request third network equipment.

Transmission unit 1202 is used to send the first instruction information, the first instruction packet to second network equipment The API information is included, the API information is determining according to the network type of terminal access, or according to the end What the network type of end group access determined.

In one possible implementation, the above-mentioned network equipment further includes processing unit 1203, for obtaining the end The network type that end or the set of terminal are currently accessed；According to the network type, the API information is determined.

In one possible implementation, receiving unit 1201 is also used to: receiving what the third network equipment was sent Second indication information, the second indication information include that the network type that the terminal is currently accessed or the set of terminal are current The network type of access.

In one possible implementation, transmission unit 1202 are also used to: receiving the third in receiving unit 1201 Before the second indication information that the network equipment is sent, the second request, the mark including the terminal are sent to the third network equipment Or the mark of the set of terminal；Wherein, second request is currently accessed for terminal or the set of terminal described in request Network type；Alternatively, second request is for requesting the network type accessed in the terminal or the set of terminal to occur When variation, Xiang Suoshu first network equipment sends the network type that the terminal or the set of terminal are currently accessed；

In one possible implementation, receiving unit 1201 is also used to: receiving the third that the third network equipment is sent Indicate information, the third instruction information includes the API information.

In one possible implementation, transmission unit 1202 is also used to: receiving third network in receiving unit 1201 Before the third instruction information that equipment is sent, the Xiang Suoshu third network equipment sends third request；The third request is for asking Seek the API information for obtaining and currently determining according to the network type that the terminal or the set of terminal access；Alternatively, the third is asked It asks for requesting when the API information changes, Xiang Suoshu first network equipment sends the API information.

In one possible implementation, first request refers to for API information described in request, described first Show that information carries in the response message to first request；Alternatively, first request is for requesting in the API information When changing, second network equipment of Xiang Suoshu sends API information.

Based on the same technical idea, the embodiment of the present application also provides a kind of network equipments, for realizing the above method Function performed by the third network equipment in embodiment.Specifically, the structure of the network equipment can be as shown in figure 13, including place It manages unit 1301 and transmission unit 1302 can also include further receiving unit 1303.

Wherein, processing unit 1301, for obtaining the network type of terminal or set of terminal access.

Transmission unit 1302, for sending the first instruction information to first network equipment, the first instruction information includes The terminal or the network type of set of terminal access.

In one possible implementation, the above-mentioned third network equipment can also include receiving unit 1303, be used for Before transmission unit 1302 sends the first instruction information to first network equipment, the first network equipment is sent first is received Request, first request include the mark of the terminal or the mark of the set of terminal；First request is obtained for requesting The network type for taking the terminal or the set of terminal to access, the first instruction information are carried in the response message to the first request In, alternatively, the first instruction information is transmission when the network type accessed in the terminal or the set of terminal changes 's；Alternatively, when first request is for requesting the network type accessed in the terminal or the set of terminal to change, to The first network equipment sends the network type of the terminal or set of terminal access.

Based on the same technical idea, the embodiment of the present application also provides a kind of network equipments, for realizing the above method Function performed by the third network equipment in embodiment.The structure of the network equipment is similar with structure shown in Figure 13, can also be with It can also include receiving unit further including processing unit and transmission unit.

Wherein, processing unit, for obtaining the network type of terminal or set of terminal access；

Transmission unit, for sending the first instruction information to the first network equipment, the first instruction information includes The information of the API of the third network equipment, the API information are that the third network equipment is determined according to the network type 's.

In one possible implementation, the above-mentioned third network equipment further includes receiving unit, in transmission unit Before sending second indication information to the first network equipment, the first request that the first network equipment is sent, institute are received State the mark of mark or the set of terminal that the first request includes the terminal；First request is for request according to institute The API information that the network type that terminal or the set of terminal access determines is stated, the first instruction information carrying is asked to first In the response message asked, alternatively, the first instruction information is the network type hair accessed in the terminal or the set of terminal It is sent when changing；Alternatively, first request is for requesting the first net of Xiang Suoshu when the API information changes Network equipment sends the API information.

It should be noted that it should be understood that the division of each unit of the above network equipment is only a kind of drawing for logic function Point, it can completely or partially be integrated on a physical entity in actual implementation, it can also be physically separate.And these units can All to be realized by way of processing element calls with software；It can also all realize in the form of hardware；It can also part Unit realizes that unit passes through formal implementation of hardware by way of software is called by processing element.For example, sending single Member can be the processing element individually set up, and also can integrate and realize in some chip of the network equipment, in addition it is also possible to It is stored in the form of program in the memory of the network equipment, is called by some processing element of the network equipment and executes the hair Send the function of unit.The realization of other units is similar therewith.Furthermore these units completely or partially can integrate together, can also With independent realization.Processing element described here can be a kind of integrated circuit, the processing capacity with signal.In the process of realization In, each step or above each unit of the above method can by the integrated logic circuit of the hardware in processor elements or The instruction of software form is completed.In addition, the above transmission unit can be a kind of unit that control is sent, the network equipment can be passed through Sending device, such as antenna and radio-frequency unit receive information.

The above unit can be arranged to implement one or more integrated circuits of above method, such as: one Or multiple specific integrated circuits (application specific integrated circuit, ASIC), or, one or more A microprocessor (digital singnal processor, DSP), or, one or more field programmable gate array (field programmable gate array, FPGA) etc..For another example, when some above unit dispatches journey by processing element When the form of sequence is realized, which can be general processor, such as central processing unit (central processing Unit, CPU) or it is other can be with the processor of caller.For another example, these units can integrate together, with system on chip The form of (system-on-a-chip, SOC) is realized.

Based on the same technical idea, the embodiment of the present application provides a kind of network equipment 1400, for realizing above-mentioned side Function performed by first network equipment in method embodiment.Specifically, the hardware configuration of the network equipment 1400 can be such as Figure 14 It is shown, including at least one processor 1401, communication bus 1402, memory 1403 and at least one communication interface 1404.

Processor 1401 can be a general central processor (central processing unit, CPU), micro- place Manage device, application-specific integrated circuit (application-specific integrated circuit, ASIC) or one or Multiple integrated circuits executed for controlling application scheme program.

Communication bus 1402 may include an access, and information is transmitted between said modules.

Communication interface 1404, using the device of any transceiver one kind, for other equipment or communication, such as Ethernet, wireless access network (radio access network, RAN), WLAN (wireless local area Networks, WLAN) etc..

Memory 1403 can be read-only memory (read-only memory, ROM) or can store static information and refer to The other kinds of static storage device enabled, random access memory (random access memory, RAM) or can store The other kinds of dynamic memory of information and instruction, is also possible to Electrically Erasable Programmable Read-Only Memory (electrically erasable programmable read-only memory, EEPROM), CD-ROM (compact Disc read-only memory, CD-ROM) or other optical disc storages, optical disc storage (including compression optical disc, laser disc, light Dish, Digital Versatile Disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carry or Store have instruction or data structure form desired program code and can by any other medium of computer access, but It is without being limited thereto.Memory, which can be, to be individually present, and is connected by bus with processor.Memory can also be integrated with processor Together.

Wherein, memory 1403 be used for store execution application scheme application code, and by processor 1401 Control executes.Processor 1401 is for executing the application code stored in memory 1403, to realize that the application is above-mentioned The API information transmission method that embodiment provides.

Alternatively, it is optional, in the embodiment of the present application, it is also possible to processor 1401 and the above embodiments of the present application offer is provided API information transmission method in correlation function, communication interface 1404 be responsible for other equipment or communication, the application Embodiment is not especially limited this.

In the concrete realization, as one embodiment, processor 1401 may include one or more CPU.

In the concrete realization, as one embodiment, which may include multiple processors.In these processors Each can be monokaryon (single-CPU) processor, be also possible to multicore (multi-CPU) processor.This In processor can refer to one or more equipment, circuit, and/or the place for handling data (such as computer program instructions) Manage core.

Based on the same technical idea, the embodiment of the present application provides a kind of network equipment, for realizing above method reality Apply function performed by the third network equipment in example.Specifically, the hardware configuration of the network equipment can be with structure shown in Figure 14 It is similar, including at least one processor, communication bus, memory and at least one communication interface.

Processor can be a CPU, microprocessor, ASIC, or one or more for controlling application scheme program The integrated circuit of execution.

Communication bus may include an access, and information is transmitted between said modules.

Communication interface is used for and other equipment or communication, such as ether using the device of any transceiver one kind Net, RAN, WLAN etc..

Memory can be ROM or can store the other kinds of static storage device of static information and instruction, RAM or The other kinds of dynamic memory that information and instruction can be stored, be also possible to EEPROM, CD-ROM or other optical disc storages, Optical disc storage, magnetic disk storage medium or other magnetic storage apparatus or it can be used in carrying or storing that there are instruction or data The desired program code of structure type and can by any other medium of computer access, but not limited to this.Memory can To be to be individually present, it is connected by bus with processor.Memory can also be integrated with processor.

Wherein, memory is used to store the application code for executing application scheme, and execution is controlled by processor. Processor is for executing the application code stored in memory, to realize the API letter that the above embodiments of the present application provide Cease transmission method.

Alternatively, it is optional, in the embodiment of the present application, it is also possible to processor and executes what the above embodiments of the present application provided Correlation function in API information transmission method, communication interface are responsible for and other equipment or communication, the embodiment of the present application This is not especially limited.

In the concrete realization, as one embodiment, processor may include one or more CPU.

In the concrete realization, as one embodiment, which may include multiple processors.In these processors Each can be a single core processor, be also possible to a multi-core processor.Here processor can refer to one or Multiple equipment, circuit, and/or the processing core for handling data (such as computer program instructions).

Based on the same technical idea, the embodiment of the present application also provides a kind of communication system, including above-mentioned first network is set Standby and any third network equipment.

Based on the same technical idea, the embodiment of the present application also provides a kind of chip system, which includes processing Device, for supporting communication equipment to realize above-mentioned API information transmission method.In a kind of possible design, the chip system is also Including memory.The memory, for saving the necessary program instruction of communication equipment and data.The chip system, can be by core Piece is constituted, and also may include chip and other discrete devices, the embodiment of the present application is not especially limited this.

In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real It is existing.When being realized using software program, can entirely or partly realize in the form of a computer program product.The computer Program product includes one or more computer instructions.On computers load and execute computer program instructions when, all or It partly generates according to process or function described in the embodiment of the present application.The computer can be general purpose computer, dedicated meter Calculation machine, computer network or other programmable devices.The computer instruction can store in computer readable storage medium In, or from a computer readable storage medium to the transmission of another computer readable storage medium, for example, the computer Instruction can pass through wired (such as coaxial cable, optical fiber, number from a web-site, computer, server or data center Word user line (digital subscriber line, DSL)) or wireless (such as infrared, wireless, microwave etc.) mode to another A web-site, computer, server or data center are transmitted.The computer readable storage medium can be computer Any usable medium that can be accessed either includes the numbers such as one or more server, data centers that medium can be used to integrate According to storage equipment.The usable medium can be magnetic medium (for example, floppy disk, hard disk, tape), optical medium (for example, DVD), Or semiconductor medium (such as solid state hard disk (solid state disk, SSD)) etc..

Claims

1. a kind of Application Programming Interface API information transmission method characterized by comprising

First network equipment receive second network equipment send first request, it is described first request in include terminal mark or The mark of set of terminal, the information of API of first request for the request third network equipment；

The first network equipment sends the first instruction information to second network equipment, and the first instruction information includes institute API information is stated, the API information is determining according to the network type of terminal access, or according to the set of terminal What the network type of access determined.

2. the method as described in claim 1, which is characterized in that further include:

The first network equipment obtains the network type that the terminal or the set of terminal are currently accessed；

The first network equipment determines the API information according to the network type.

3. method according to claim 2, which is characterized in that the first network equipment obtains the terminal or the terminal The network type that group is currently accessed, comprising:

The first network equipment receives the second indication information that the third network equipment is sent, the second indication information packet Include the network type that the terminal is currently accessed or the network type that the set of terminal is currently accessed.

4. method as claimed in claim 3, which is characterized in that receive the third network equipment in the first network equipment Before the second indication information of transmission, further includes:

The first network equipment sends the second request, mark or the set of terminal including the terminal to the third network equipment Mark；

Second request is for terminal described in request or the network type of set of terminal access；Alternatively,

When second request is for requesting the network type accessed in the terminal or the set of terminal to change, Xiang Suoshu First network equipment sends the network type that the terminal or the set of terminal are currently accessed.

5. the method as described in claim 1, which is characterized in that further include:

The first network equipment receives the third that the third network equipment is sent and indicates information, and the third instruction information includes institute State API information.

6. method as claimed in claim 5, which is characterized in that receive the third network equipment in the first network equipment and send Third instruction information before, the method also includes:

The first network equipment sends third request to the third network equipment；

The third request is believed for request according to the API that the network type that the terminal or the set of terminal access determines Breath；Alternatively,

For requesting when the API information changes, Xiang Suoshu first network equipment sends the API for the third request Information.

7. such as method of any of claims 1-6, which is characterized in that first request is for described in request API information, the first instruction information carry in the response message to first request；Or

For requesting when the API information changes, second network equipment of Xiang Suoshu sends API letter for first request Breath.

8. a kind of Application Programming Interface API information transmission method characterized by comprising

The third network equipment obtains the network type of terminal or set of terminal access；

The third network equipment sends the first instruction information to the first network equipment, and the first instruction information includes institute State the network type of terminal or set of terminal access.

9. method according to claim 8, which is characterized in that sent out in the third network equipment to the first network equipment Before sending the first instruction information, the method also includes:

The third network equipment receives the first request that the first network equipment is sent, and first request includes the end The mark of the mark at end or the set of terminal,；

First request is taken for terminal described in request or the network type of set of terminal access, the first instruction information Band is in the response message to the first request, alternatively, the first instruction information is accessed in the terminal or the set of terminal Network type send when changing；Alternatively,

When first request is for requesting the network type accessed in the terminal or the set of terminal to change, Xiang Suoshu First network equipment sends the network type of the terminal or set of terminal access.

10. a kind of Application Programming Interface API information transmission method characterized by comprising

The third network equipment sends the first instruction information to the first network equipment, and the first instruction information includes institute The information of the API of the third network equipment is stated, the API information is that the third network equipment is determined according to the network type 's.

11. method as claimed in claim 10, which is characterized in that in the third network equipment to the first network equipment Before sending second indication information, the method also includes:

The third network equipment receives the first request that the first network equipment is sent, and first request includes the end The mark of the mark at end or the set of terminal；

First request is believed for request according to the API that the network type that the terminal or the set of terminal access determines Breath, the first instruction information carry in the response message to the first request, alternatively, the first instruction information is described What terminal or the network type of set of terminal access were sent when changing；Or

For requesting when the API information changes, Xiang Suoshu first network equipment sends the API for first request Information.

12. a kind of network equipment, which is characterized in that the network equipment is as first network equipment, comprising: processor, and The memory and communication interface being connected to the processor；

The processor is executed for reading the computer program stored in the memory:

The first request that second network equipment is sent is received by the communication interface, includes the mark of terminal in first request Know or the mark of set of terminal, first request are used for the information of the API of the request third network equipment；

The first instruction information is sent to second network equipment by the communication interface, the first instruction information includes institute API information is stated, the API information is determining according to the network type of terminal access, or according to the set of terminal What the network type of access determined.

13. the network equipment as claimed in claim 12, which is characterized in that the processor is also used to:

Obtain the network type that the terminal or the set of terminal are currently accessed；

According to the network type, the API information is determined.

14. the network equipment as claimed in claim 13, which is characterized in that the processor is obtaining the terminal or the end When the network type that end group is currently accessed, it is specifically used for:

The second indication information that the third network equipment is sent, the second indication information packet are received by the communication interface Include the network type that the terminal is currently accessed or the network type that the set of terminal is currently accessed.

15. the network equipment as claimed in claim 14, which is characterized in that the processor is also used to:

Before receiving the second indication information that the third network equipment is sent by the communication interface, pass through the communication Interface sends the second request, the mark of mark or the set of terminal including the terminal to the third network equipment；

16. the network equipment as claimed in claim 12, which is characterized in that the processor is also used to:

The third that the third network equipment is sent is received by the communication interface and indicates information, and the third instruction information includes institute State API information.

17. the network equipment as claimed in claim 16, which is characterized in that the processor is also used to:

Before receiving the third that the third network equipment is sent by the communication interface and indicating information, pass through the communication interface Third request is sent to the third network equipment；

18. the network equipment as described in any one of claim 12-17, which is characterized in that first request is for requesting The API information is obtained, the first instruction information carries in the response message to first request；Or

19. a kind of network equipment, which is characterized in that the network equipment is carried out as the third network equipment and first network equipment Communication, the third network equipment includes: processor, and the memory and communication interface that are connected to the processor；

Obtain the network type of terminal or set of terminal access；

The first instruction information is sent to the first network equipment by the communication interface, the first instruction information includes institute State the network type of terminal or set of terminal access.

20. the network equipment as claimed in claim 19, which is characterized in that the processor is also used to:

Before sending the first instruction information to the first network equipment by the communication interface, pass through the communication interface The first request that the first network equipment is sent is received, first request includes the mark or the set of terminal of the terminal Mark；

21. a kind of network equipment, which is characterized in that the network equipment is carried out as the third network equipment and first network equipment Communication, the third network equipment include: include: processor, and the memory and communication interface that are connected to the processor；

Obtain the network type of terminal or set of terminal access；

The first instruction information is sent to the first network equipment by the communication interface, the first instruction information includes institute The information of the API of the third network equipment is stated, the API information is that the third network equipment is determined according to the network type 's.

22. the network equipment as claimed in claim 21, which is characterized in that the processor is also used to:

Before sending second indication information to the first network equipment by the communication interface, pass through the communication interface The first request that the first network equipment is sent is received, first request includes the mark or the set of terminal of the terminal Mark；