CN105812311A

CN105812311A - Router intelligent control system

Info

Publication number: CN105812311A
Application number: CN201410831405.XA
Authority: CN
Inventors: 王能武
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-12-27
Filing date: 2014-12-27
Publication date: 2016-07-27

Abstract

The invention provides a router intelligent control system. In a session establishment process, a service CSCF judges whether an iFC trigger condition which is used for representing whether the subscription service of a subscriber is activated in an initial filtering rule in subscriber subscription data from a home subscriber server is satisfied or not, and the service CSCF determines whether to route the session to the application server corresponding to the initial filtering rule according to the judgment result. By using the system, the voice channel circuitousness and resource waste can be reduced, the time of session establishment is shortened, and the change of the normal registration process of user equipment in an IMS network is not needed.

Description

Router intelligence control system

Technical field

The present invention relates to fixing and field of wireless communications networks, particularly relate to a kind of for router intelligence control system.

Background technology

Each big normal structures such as the TISPAN that 3GPP, 3GPP2, International Telecommunication Association (ITU-T), ETSI (ETSI) divide into all work about the standard formulation of next-generation communication network (NGN) carrying out, substantially determine with IP Multimedia System (IPMultimediaSubsystem, IMS) as of future generation fixing and movement core network.E-learning quality occurs in that access technology and business provide variation, carrying IPization, the unified development trend to IMS of core network.User can obtain business experience more preferably in the ims network.

Existing IMS technology, CSCF (CallSessionControlFunction, CSCF) in IMS core net, it is in the driver's seat of core, it is responsible for subscriber equipment (UserEquipment, UE) registration carries out the control that authenticates and conversate, perform the basic session routing function of the IMS user for calling terminal/called end, and the IMS filtering rule according to user's signing, realize the triggering of the value-added service route of application server in network (ApplicationServer, AS) when condition meets and to realize Service control mutual.

The IMS subscription information that home subscriber server (HomeSubscriberServer, HSS) storage sets when having operator to open an account, supports the customization by subscription data being carried out by operator or terminal use with the interface of business management system and amendment simultaneously.It is connected with the Cx interface based on Diameter between HSS with serving CSCF (S-CSCF), it may be achieved registration to S-CSCF domain name routing iinformation in IMS registration process, and supports, by this Cx interface, basic IMS subscription information is downloaded to S-CSCF；Connect with the Sh interface based on Diameter between HSS and SIPAS, this Sh interface provides the remote database access interface of subscription data, service logic script for value-added service SIPAS or OSASCS, HSS is merely responsible for the transparent storage to specific contracted user's AS value-added service data, does not semantically resolve.

AS is obtained from HSS by Sh interface or updates the relevant data of customer service and user state information, and S-CSCF obtains the CAMEL-Subscription-Information of user by Cx interface from HSS.

In the ims network, it is will be talked about by the initial filter criteria (InitialFilterCriteria, iFC) in S-CSCF to be routed to corresponding AS during session establishment, AS provides the user miscellaneous service.Wherein, iFC itself contains only the trigger condition of specific transactions, and the realization of business completes in AS.

UML (UnifiedModuleLanguage, the UML) system of the IMS subscription information (IMSSubscription) of the existing user downloaded to from HSS S-CSCF.Wherein, an IMS subscription information, to there being several business information (ServiceProfile), represents that a user can contract multiple business.

The UML system of the existing business information (ServiceProfile) downloaded to from HSS S-CSCF.Wherein, business information is to several public identifiers (PublicIdentification), 0 to 1 core network service mandate (CoreNetworkServiceAuthorization), several initial filter criteria (iFC) and several shared iFC should be had to arrange.Business information (ServiceProfile) herein not refers in particular to a business, it is the signing service information of user's (several public identifiers), it is likely to comprise multiple business information of user's signing, it is necessary to multiple AS are that it provides service, and each iFC can only on triggering session to AS.

The UML system of existing initial filter criteria (iFC).Wherein, an iFC is to having 0 to 1 trigger point and an AS.And each trigger point contains several business trigger conditions (ServicePointTrigger).When the business trigger condition of trigger point meets, S-CSCF will talk about the AS being routed to corresponding to this iFC.

The UML system of business trigger condition (ServicePointTrigger) in existing iFC.Wherein, each business trigger condition can include the contents such as request URI, SIP method, SIP head territory, dialog events and conversation description.

For some business, there is signing and activate two states.Contract and not necessarily activated.In present routing rule, no matter whether this business activates, this business as long as user has contracted, and when meeting business trigger condition set in iFC in conversation procedure, this session will be routed in the AS corresponding to this iFC by S-CSCF.If this business of user does not activate, then AS is only forwarding this session.

In existing a kind of method for routing as above, when certain business of user does not activate, S-CSCF still will talk about and be routed to corresponding AS, and AS is only forwarding this session.In reality, user is likely to a lot of business of having contracted, or it is supplied to user's multiple business when user-network access by operator, some of which business only has user have activated just really to provide the user, but user is likely to be rarely employed/activate this business (such as forward-shifting service), user only just can activate this business when needs.And in existing routing rule, when each user initiates session, this business all can be triggered on the AS providing forward-shifting service according to iFC by S-CSCF, but because user does not activate forward-shifting service, AS is also just left intact, and simply directly forwards this session, so, the waste of the roundabout of route and resource can be caused, and be delayed session establishment time.

Have also appeared now another kind of method for routing, it is in HSS, increase a dynamic service active mark (DynamicServiceActivationIdentity, DSAI), when all business all un-activations that AS is corresponding, the attribute of this DSAI is un-activation, as long as and when to have business be activate, the attribute of this DSAI is just for activating.This DSAI carries out synchronized update by Sh interface between AS and HSS.The Sh interface data of HSS and AS increase a data category about DSAI " DSAI-Tag ", according to whether there is this data category in Sh interface message, determine in the data inquiring about (Sh-Pull), amendment (Sh-Update), subscription (Sh-Subs-Notif), notice (Sh-Notif) between AS and HSS whether include DSAI.

When subscriber equipment (UE) is registered, and in authentication by rear, I-CSCF and HSS interacts, and is chosen as the S-CSCF of its service for subscriber equipment；S-CSCF downloads the IMS subscription data of user to HSS request；

The AS relevant to user's signing service is likely to have multiple, and HSS needs to judge whether this relevant DSAI corresponding to each AS is state of activation successively.

When the DSAI corresponding to certain AS is state of activation, when S-CSCF requested service data, the iFC corresponding with this AS is issued to this S-CSCF by HSS, and such session can be routed in the AS corresponding to this iFC；If DSAI is unactivated state, then when S-CSCF requested service data, the iFC corresponding with this AS is not issued to S-CSCF, such S-CSCF and would not talk about yet and be routed on corresponding AS by HSS.

Adopt in this way, whether activating regardless of business existing for overcoming in a kind of prior art all will be talked about is routed to AS and causes the roundabout shortcoming with the wasting of resources of route, but needing to change the register flow path of normal user terminal, HSS decides whether iFC is downloaded to S-CSCF after needing to judge the attribute of DSAI again.And in normal process flow process, as long as meeting to the condition of S-CSCF downloading service data, relevant information will be all downloaded to S-CSCF by HSS, itself need not do any process.

Summary of the invention

The technical problem to be solved is in that, it is provided that a kind of router intelligence control system, can optimize user in IMS network and contract certain business and network route during unactivated situation.

The technical solution adopted in the present invention is in that, a kind of router intelligence control system is provided, a () serving CSCF downloads user contracting data to home subscriber server request, include for indicating the dynamic service active identification information that on application server, whether business activates in this user contracting data；In session establishment process, whether the iFC the trigger condition whether signing service for characterizing user that serving CSCF judges in initial filter criteria in the user contracting data of home subscriber server activates meets；

B () serving CSCF determines whether to be routed on the application server corresponding to this initial filter criteria by this session according to the judged result in step (a)；If this iFC trigger condition is unsatisfactory in step (a), it is not necessary to this session is routed on the application server corresponding to this initial filter criteria；If this iFC trigger condition meets in step (a), then whether other business trigger condition judged in this initial filter criteria all meets；

If other business trigger condition in this initial filter criteria is satisfied by, then this session is routed on the application server corresponding to this initial filter criteria；If other business trigger condition does not all meet in this initial filter criteria, then without this session is routed on the application server corresponding to this initial filter criteria.

In the router intelligence control system of the present invention, all initial filter criteria being triggered to same application server identify corresponding to a dynamic service active.

In the router intelligence control system of the present invention, farther include following steps:

C the change of the state of activation residing for () business corresponding to application server, is updated the dynamic service active identification information in serving CSCF.

Implement the router intelligence control system of the present invention, have the advantages that when user only contracts and have activated AS certain business provided that S-CSCF just understands to talk about and be routed to corresponding AS, decrease the waste of alternative channel and resource, shorten the time of session establishment.And in HSS to the S-CSCF business information downloaded, add several DSAI corresponding respectively to each iFC mark, in each iFC, increased the iFC trigger condition whether a business for determining AS activates newly, it is not necessary to change normal registration flow process simultaneously.

Accompanying drawing explanation

Fig. 1 is the session route schematic flow sheet in the present invention.

Detailed description of the invention

The present invention provides the method and apparatus of a kind of network route optimization, for a lot of business of user in IMS network and have signing and activate two states, when having contracted when certain business but not necessarily activates this situation user, network route is optimized.

In the ims network, AS realizing business, S-CSCF is routed to different AS completes corresponding business according to talking about from the HSS iFC downloaded rule in conversation procedure.The data of HSS and S-CSCF keep synchronizing by the Cx interface in IMS network.

The principle that realizes of the present invention is: increase a dynamic service active mark (DynamicServiceActivationIdentity in HSS, DSAI), when user terminal is registered, by Cx interface, DSAI is downloaded to S-CSCF as the part of user data from HSS, when the change of activation of service state causes that DSAI changes, the DSAI data in S-CSCF can be updated by HSS by Cx interface.And HSS increases a new IFC trigger condition in the business trigger condition of relevant iFC, the value of this iFC trigger condition DSAI corresponding to AS corresponding for this iFC determines, when DSAI is state of activation, this iFC trigger condition just meets, and is otherwise unsatisfactory for.Whether will talk about that to be routed to AS be that S-CSCF carries out whether meeting according to IFC trigger condition in process determining in session.

The introducing of activation of service state and DSAI is needed the Cx interface between S-CSCF and HSS makes corresponding amendment and extension by the present invention.Update in the Cx-Update_Subscr_Data operation of user data of S-CSCF in the HSS registration response Cx-PutResp+Cx-PullResp operation to S-CSCF and HSS, extension to user data (UserProfile) increases several DSAI elements, can be associated by the ServerName attribute of AS in DSAI-Tag and the iFC in each DSAI, thus DSAI and iFC one_to_one corresponding is got up.All iFC being triggered to same AS indicate the DSAI of activation of service state on this AS corresponding to one.And each DSAI records the state (activating and un-activation) of this DSAI with DSAI-state.

Below iFC trigger point, one data type of increase is the DSAI element of boolean, and as iFC trigger condition, whether the business being used for representing on relevant AS is activated.Only when this iFC trigger condition meets (when DSAI is state of activation), just consider whether other business trigger condition meets, then will talk about when the trigger condition when herein all meets and be routed on the AS corresponding with this iFC；If iFC trigger condition is unsatisfactory for (DSAI is unactivated state), then regardless of whether other trigger conditions in this iFC trigger point meet, all this session will not be routed on corresponding AS.

As it is shown in figure 1, be the session route schematic flow sheet in the present invention.

First, when user equipment registration, in authentication by rear, I-CSCF and HSS interacts, and is chosen as the S-CSCF of its service for subscriber equipment (UE)；S-CSCF downloads user contracting data to HSS request, includes the information of DSAI in this user contracting data, namely by Cx interface, from HSS, DSAI is downloaded to S-CSCF as the part of user data.Or at no point in the update process, the DSAI data (i.e. its state) in S-CSCF can be updated by HSS by Cx interface.

The corresponding DSAI state of user in HSS can be revised by operation management mode by operator, by Ut, the activating, deactivating of business can also be operated the state changing DSAI in AS by subscriber equipment, again through the state of this DSAI synchronize with HSS of the Sh interface between HSS and AS.When user-dependent DSAI data change, HSS is by the DSAI data in Cx interface amendment S-CSCF.

When session set up by needs, subscriber equipment (UE) is to P-CSCF setup requests (INVITE), and P-CSCF forwards the request to S-CSCF；

In session establishment process, S-CSCF judges from whether the iFC trigger condition in the iFC in the user contracting data of HSS meets；

If when iFC trigger condition relevant for DSAI meets (DSAI corresponding with AS is state of activation), the business represented on AS activates, whether other business trigger condition then judged in this iFC all meets, if be satisfied by, then this session is routed on the AS corresponding to this iFC (in figure, it will words are routed on AS1)；If still there being other trigger conditions to be unsatisfactory for, then this session is not routed on the AS1 corresponding to this iFC (not shown in FIG.)；

If this iFC trigger condition is unsatisfactory for (DSAI corresponding with AS is unactivated state), represent the business un-activation on AS1, then without judging whether other industry trigger condition in this iFC meets, and this session is not routed on the AS1 corresponding to this iFC.

For the Another Application server A S2 that the business of user's signing is relevant, illustrate only the situation of a kind of route in the drawings.In the present invention, can also realizing different route situations by judging whether the iFC trigger condition in the iFC relevant with this AS2 meets, it is identical with the aforementioned judge process to the iFC trigger condition in the AS1 iFC being correlated with, and is not described in detail at this.

The preferred embodiment of the above disclosed router intelligence control system being only the present invention and equipment, certainly the interest field of the present invention can not be limited with this, therefore the equivalent variations made according to the present patent application the scope of the claims, still belongs to the scope that the present invention contains.

Claims

1. a router intelligence control system, it is characterised in that comprise the steps:

A () serving CSCF downloads user contracting data to home subscriber server request, include for indicating the dynamic service active identification information that on application server, whether business activates in this user contracting data；In session establishment process, whether the iFC the trigger condition whether signing service for characterizing user that serving CSCF judges in initial filter criteria in the user contracting data of home subscriber server activates meets；

2. router intelligence control system as claimed in claim 1, it is characterised in that all initial filter criteria being triggered to same application server identify corresponding to a dynamic service active.

3. router intelligence control system as claimed in claim 2, it is characterised in that farther include following steps:

4. router intelligence control system as claimed in claim 3, it is characterised in that described step (c) farther includes:

At no point in the update process, the dynamic service active identification information in S-CSCF is updated by home subscriber server by Cx interface.

5. router intelligence control system as claimed in claim 4, it is characterised in that described step (c) farther includes:

Dynamic service active identification information is changed in the application server by Ut by subscriber equipment, and by synchronize this dynamic service active identification information of Sh interface between home subscriber server with application server；Whether activate according to business and utilize operation management mode to change dynamic service active identification information at home subscriber server, by synchronize this dynamic service active identification information of Sh interface between application server with home subscriber server.