CN101079878A - A method and device for network route optimization - Google Patents
A method and device for network route optimization Download PDFInfo
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- CN101079878A CN101079878A CN 200610153511 CN200610153511A CN101079878A CN 101079878 A CN101079878 A CN 101079878A CN 200610153511 CN200610153511 CN 200610153511 CN 200610153511 A CN200610153511 A CN 200610153511A CN 101079878 A CN101079878 A CN 101079878A
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Abstract
This invention relates to a method for optimizing network routes including: a, service CSCF judges if iFC trigger condition for expressing if a signed service of a user is activated is satisfied in an initial filtration rule from the user signed data of an attributed user server, b, CSCF determines if it routes said session to an applied server corresponding to the initial filtration rule. This invention also provides a device used in optimizing network routes.
Description
Technical field
The present invention relates to fixing and field of wireless communications networks, relate in particular to a kind of method and apparatus that is used for network route optimization.
Background technology
Each big normal structure such as TISPAN that 3GPP, 3GPP2, International Telecommunication Association (ITU-T), ETSI (ETSI) divide into is all in the standard formulation work of carrying out about next-generation communication network (NGN), determined that substantially (IP Multimedia Subsystem is IMS) as fixing and mobile core network of future generation with IP Multimedia System.Access technology and professional variation, carrying IPization, the unified development trend to IMS of core network of providing have appearred in network evolution.The user can obtain better business experience in the IMS network.
As shown in Figure 1, be the structural representation of existing a kind of IMS.Wherein, CSCF (Call Session Control Function, CSCF) in the IMS core net, be in the control core status, it is responsible for subscriber equipment (User Equipment, UE) registration is carried out authentication and is carried out session control, execution is at the IMS user's of calling terminal/called end basic session routing function, and the IMS filtering rule of contracting according to the user, (Application Server, the triggering of value-added service route AS) and the business control of realization are alternately to be implemented to application server in the network when condition satisfies.
(Home Subscrier Server HSS) stores the IMS subscription information of setting when operator opens an account to home subscriber server, supports customization and the modification by operator or terminal use subscription data carried out by the interface with business management system simultaneously.Be connected with Cx interface between HSS and serving CSCF (S-CSCF), can realize in the IMS registration process registration, and support basic I MS CAMEL-Subscription-Information to be downloaded to S-CSCF by this Cx interface to S-CSCF domain name routing iinformation based on Diameter; Be connected with Sh interface between HSS and SIP AS based on Diameter, this Sh interface provides the remote database access interface of subscription data, service logic script for value-added service SIP AS or OSA SCS, HSS only is responsible for the transparent storage to specific contracted user AS value-added service data, does not semantically do parsing.
AS obtains from HSS by Sh interface or upgrades customer service relevant data and user state information, and S-CSCF obtains user's CAMEL-Subscription-Information from HSS by Cx interface.
In the IMS network, be that (Initial FilterCriteria iFC) will talk about and is routed to corresponding AS, is come to provide miscellaneous service for the user by AS by the initial filter criteria among the S-CSCF when session is set up.Wherein, iFC itself has only comprised the trigger condition of specific transactions, and professional realization is finished in AS.
As shown in Figure 2, be existingly to download to UML (Unified Module Language, schematic diagram UML) of the IMS subscription information (IMSSubscription) of the user the S-CSCF from HSS.Wherein, an IMS subscription information be to there being several (representing with 1...n among the figure) business information (ServiceProfile), represents user multiple business of can having contracted.
As shown in Figure 3, be existingly to download to the UML schematic diagram of the business information (Service Profile) the S-CSCF from HSS.Wherein, a business information is provided with several public identifiers (PublicIdentification), 0 or 1 core network service authorization (Core Network Service Authorization), several (0...n) initial filter criteria (iFC) and several (0...n) shared iFC should be arranged.Business information herein (Service Profile) is not to refer in particular to a business, it is the signing service information of user's (several public identifiers), may comprise a plurality of business information that the user contracts, need a plurality of AS provide service for it, and each iFC can only triggering session to an AS on.
As shown in Figure 4, be the UML schematic diagram of existing initial filter criteria (iFC).Wherein, an iFC is to having 0 or 1 trigger point and an AS.And each trigger point has comprised several professional trigger conditions (Service Point Trigger).When the professional trigger condition of trigger point satisfied, S-CSCF will talk about and be routed to the pairing AS of this iFC.
As shown in Figure 5, be the UML schematic diagram of professional trigger condition (Service Point Trigger) among the existing iFC.Wherein, each professional trigger condition can include contents such as request URI, SIP method, SIP header field, dialog events and conversation description.
For some business, exist signatory and the activation two states.Contracted and not necessarily activated.In present routing rule, no matter should business whether activate, as long as contracted should business for the user, when satisfied the professional trigger condition that sets among the iFC in conversation procedure, S-CSCF will be routed to this session among the pairing AS of this iFC.If this business of user does not activate, then AS just transmits this session.
In aforesaid existing a kind of method for routing, when certain business of user did not activate, S-CSCF still will talk about and be routed to corresponding AS, and AS just transmits this session.In the reality, user's a lot of business of may having contracted, perhaps offer user's multiple business when the user-network access by operator, wherein some business has only the user to activate just can really provide for the user, but the user may seldom use/activate this business (for example forward-shifting service), and the user only just can activate this business in needs.And in existing routing rule, during each user's initiation session, S-CSCF all can be triggered to this business on the AS that forward-shifting service is provided according to iFC, but because the user does not activate forward-shifting service, AS also just is left intact, and just directly transmits this session, like this, can cause the waste of the circuitous and resource of route, and postpone session settling time.
Also having occurred another kind of method for routing now, as shown in Figure 6, is the UML schematic diagram of Sh interface data in the existing another kind of method for routing.It is to increase a dynamic service active sign (DynamicService Activation Identity in HSS, DSAI), when all business of AS correspondence all during un-activation, the attribute of this DSAI is un-activation, as long as and a business is arranged is when activating, the attribute of this DSAI is just for activating.This DSAI upgrades between AS and HSS synchronously by Sh interface.In the Sh interface data of HSS and AS, increase a data category " DSAI-Tag " about DSAI, according in Sh interface message, whether there being this data category, determining to inquire about between AS and the HSS (Sh-Pull), revise (Sh-Update), subscribe to (Sh-Subs-Notif), whether include DSAI in the data of notice (Sh-Notif).Should (may I ask: how " Charging Information " among Fig. 7 translate?)
Its concrete register flow path is following can be referring to shown in Figure 7.
When subscriber equipment (UE) is registered, and after authentication was passed through, I-CSCF and HSS carried out being chosen as the S-CSCF of its service for subscriber equipment alternately; S-CSCF is to the IMS subscription data of HSS request download user;
The AS relevant with user's signing service has a plurality of, and HSS need judge successively whether this relevant pairing DSAI of each AS is state of activation.
When the pairing DSAI of certain AS is state of activation, when S-CSCF requested service data, HSS will be issued to this S-CSCF with the corresponding iFC of this AS, and the session meeting is routed among the pairing AS of this iFC like this; When if DSAI is unactivated state, then when S-CSCF requested service data, HSS will not be issued to S-CSCF with the corresponding iFC of this AS, and S-CSCF just can not talk about yet and be routed on the corresponding AS like this.
Adopt this method, overcome go up in a kind of prior art existing no matter professional whether the activation all will be talked about the shortcoming that is routed to AS and causes the circuitous and wasting of resources of route, but the register flow path that needs the normal user terminal of change, HSS need judge behind the attribute of DSAI whether decision downloads to S-CSCF with iFC again.And adopt this scheme, and the user can't carry out professional activation deactivating operation by Gm, and other functional unit such as AS also can't replace the user to carry out professional activation deactivating operation by S-CSCF in the network.
And in the normal process flow process, as long as satisfied condition to S-CSCF downloading service data, HSS will all download relevant information and give S-CSCF, and itself does not need to do any processing.Original other function such as the user that also do not influence network carry out professional activation deactivating operation by Gm, and other functional unit such as AS also can replace the user to carry out professional activation deactivating operation by S-CSCF in the network.
Summary of the invention
Technical problem to be solved by this invention is, a kind of method and apparatus that is used for network route optimization is provided, the network route in the time of can optimizing user in the IMS network and contracted certain professional and unactivated situation.
The technical solution adopted in the present invention is, a kind of network route optimization method that is used for is provided, comprise the steps: that (a) sets up in the process in session, serving CSCF judges whether characterize the iFC trigger condition whether user's signing service activate from being used in the initial filter criteria in the user contracting data of home subscriber server satisfies; (b) serving CSCF determines whether this session is routed on the pairing application server of this initial filter criteria according to this judged result.
In the network route optimization method that is used for of the present invention, (a) may further include following steps before in step:
When an application server provides when activating with unactivated state professional, the initial filter criteria that the activation of service deexcitation is handled that is used for that a initial filter criteria than other type has higher processing priority is set, describedly be used for initial filter criteria that the activation of service deexcitation handles, perhaps comprise and describedly will trigger business triggering rule relevant in one or more initial filter criteria of same application server with the activation of service deexcitation separately corresponding to the triggering rule of the activation deexcitation of the business of an application server.
In the network route optimization method that is used for of the present invention, may further include following steps:
In user registration course, serving CSCF is to home subscriber server request download user subscription data, and home subscriber server determines whether according to the professional dynamic service active identification information that whether activates on the indication application server that initial filter criteria with this application server correspondence all is included in and downloads or only will be used for initial filter criteria that the activation of service deexcitation handles in the user contracting data and be included in user contracting data and download; Wherein, when the professional dynamic service active identification information that whether activates is state of activation on the indication application server, the initial filter criteria of application server correspondence all is included in the user contracting data downloads; Otherwise the initial filter criteria that only will be used for activation of service deexcitation processing is included in user contracting data and downloads;
In the network route optimization method that is used for of the present invention, may further include following steps:
(c) according to the change of the residing state of activation of the pairing business of application server, home subscriber server upgrades the user signing contract information in the serving CSCF by Cx interface.
In the network route optimization method that is used for of the present invention, described step (c) further comprises:
Dynamic service in angelica client server sign is become when activating by non-activation, and home subscriber server all is included in the initial filter criteria of application server correspondence in the user contracting data user data in the serving CSCF is upgraded; When dynamic service in angelica client server sign became non-activations by activation, the initial filter criteria that home subscriber server only will be used for activation of service deexcitation processing was included in user contracting data the user data in the serving CSCF is upgraded.
In the network route optimization method that is used for of the present invention, may further include following steps:
(d) receive when replacing conversation request that subscriber equipment initiates at serving CSCF from the conversation request of subscriber equipment or from third party's functional unit, preferential coupling is used for the initial filter criteria that the activation of service deexcitation is handled, if satisfy trigger condition, just will talk about and be routed on the pairing application server of this initial filter criteria;
In the network route optimization method that is used for of the present invention, it is characterized in that:
Third party's functional unit in the described step (d) comprises application server;
In the network route optimization method that is used for of the present invention, described step (b) further comprises:
(b1) if this iFC trigger condition does not satisfy in the step (a), need not this session is routed on the pairing application server of this initial filter criteria.
In the network route optimization method that is used for of the present invention, described step (b) further comprises: described step (b) further comprises:
(b2) if this iFC trigger condition satisfies in the step (a), judge then whether other the professional trigger condition in this initial filter criteria all satisfies, if the professional trigger condition of other in this initial filter criteria all satisfies, then this session is routed on the pairing application server of this initial filter criteria; If other professional trigger condition does not all satisfy in this initial filter criteria, then need not this session is routed on the pairing application server of this initial filter criteria.
In the network route optimization method that is used for of the present invention, (a) further comprises the steps: before in step
Serving CSCF includes in this user contracting data and is used to indicate the professional dynamic service active identification information that whether activates on the application server to home subscriber server request download user subscription data.
In the network route optimization method that is used for of the present invention, all initial filter criteria that are triggered to same application server identify corresponding to a dynamic service active.
In the network route optimization method that is used for of the present invention, further comprise the steps:
(e) according to the change of the residing state of activation of the pairing business of application server, the dynamic service active identification information in the serving CSCF is upgraded.
In the network route optimization method that is used for of the present invention, described step (e) further comprises:
In renewal process, home subscriber server upgrades the dynamic service active identification information among the S-CSCF by Cx interface.
In the network route optimization method that is used for of the present invention, described step (e) further comprises: change the dynamic service active identification information by subscriber equipment by Ut in application server, perhaps initiate a session request or replace the user to initiate a session request to network by Gm by the third party by the user, will talk about by S-CSCF by triggering rule and to be routed to AS and to carry out the activation of service deexcitation, and between home subscriber server and the application server by Sh interface this dynamic service active identification information synchronously.
In the network route optimization method that is used for of the present invention, whether described step (e) further comprises: activate according to business and utilize the operation management mode at home subscriber server change dynamic service active identification information, pass through Sh interface this dynamic service active identification information synchronously between application server and the home subscriber server.
The present invention also provides a kind of equipment that is used for network route optimization, comprise: whether the iFC matching module is used for matching detection and characterizes the iFC trigger condition whether user's signing service activate from being used in the initial filter criteria in the user contracting data of home subscriber server and satisfy; The route processing module is used for the matching detection result according to the iFC matching module, determines whether this session is routed on the pairing application server of this initial filter criteria.
At the equipment that is used for network route optimization of the present invention, further comprise: professional trigger condition module, it stores predetermined professional trigger condition, is used for when the iFC trigger condition satisfies, and is further detected by described iFC matching module.
At the equipment that is used for network route optimization of the present invention, include the dynamic service active identification information that is used to indicate professional residing state of activation on the application server in the described user contracting data, described matching detection result comprises that the iFC trigger condition satisfies and the iFC trigger condition does not satisfy; Described iFC trigger condition satisfies attribute corresponding to this dynamic service active sign for activating, and it is un-activation that described iFC trigger condition does not satisfy the attribute that identifies corresponding to this dynamic service active.
Implement the network route optimization method and apparatus that is used for of the present invention, have following beneficial effect: the user have only signatory and activated that AS provides certain when professional S-CSCF just can talk about and be routed to corresponding AS, reduce the waste of alternative channel and resource, shortened the time that session is set up.And increased several in the S-CSCF download business information at HSS and corresponded respectively to DSAI sign of each iFC, simultaneously in each iFC, increase the iFC trigger condition whether a business that is used to determine AS activates newly, do not needed to change the normal registration flow process.
Description of drawings
Fig. 1 is the structural representation of existing a kind of IMS;
Fig. 2 is the UML schematic diagram of existing IMS CAMEL-Subscription-Information;
Fig. 3 is the UML schematic diagram of existing business information;
Fig. 4 is the UML schematic diagram of existing initial filter criteria;
Fig. 5 is the UML schematic diagram of professional trigger condition among the existing iFC;
Fig. 6 is the UML schematic diagram of Sh interface data in the existing another kind of method for routing;
Fig. 7 is a register flow path schematic diagram in the existing another kind of method for routing;
Fig. 8 is to the UML schematic diagram of the expansion of business information among the present invention;
Fig. 9 is to the UML schematic diagram of the expansion of professional trigger condition among the iFC among the present invention;
Figure 10 is the session route schematic flow sheet among the present invention;
Figure 11 is the configuration diagram that the present invention is used for the equipment of network route optimization.
Embodiment
The invention provides a kind of method and apparatus of network route optimization, at a lot of business of user in the IMS network and have signatory and activate two states, when certain business of having contracted the user but not necessarily activates this situation, the network route is optimized.
In the IMS network, realize professionally by AS, S-CSCF will talk about according to the iFC rule of downloading from HSS in conversation procedure and be routed to different AS and finish corresponding business.The data of HSS and S-CSCF keep synchronously by the Cx interface in the IMS network.
Realization principle of the present invention is: increase a dynamic service active sign (DynamicService Activation Identity 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 caused DSAI to change, HSS can upgrade the DSAI data among the S-CSCF by Cx interface.And HSS increases a new iFC trigger condition in the professional trigger condition of relevant iFC, and the value of this iFC trigger condition is by the pairing DSAI decision of the AS of this iFC correspondence, and when DSAI was state of activation, this iFC trigger condition just satisfied, otherwise did not satisfy.Whether will talk about to be routed to AS be S-CSCF carries out whether satisfying to determine according to the IFC trigger condition in the process in session.
AS provides to exist and activates and during unactivated state professional, can select increasing an iFC who is used for activation of service deexcitation processing separately by AS, perhaps will trigger the independent new iFC (time be called " iFC that is used for activation of service deexcitation processing ") that is put into of professional triggering rule relevant with the activation of service deexcitation in one or more iFC of same AS, the iFC of this type has the processing priority higher than the iFC of other type.Be downloaded in S-CSCF the same when the user registers with other iFC;
Further alternatively, in user registration course, S-CSCF is to HSS request download user subscription data, and HSS goes up the professional DSAI information that whether activates according to indication AS and determines whether that iFC with this AS correspondence all is included in and download or only will be used for iFC that the activation of service deexcitation handles in the user contracting data and be included in user contracting data and download; When having only indication AS to go up the professional DSAI information that whether activates to be state of activation, the iFC of AS correspondence all is included in the user contracting data downloads; Otherwise the iFC that only will be used for activation of service deexcitation processing is included in user contracting data and downloads;
Further alternatively, when the DSAI among the HSS is become when activating by non-activation, HSS all is included in the iFC of AS correspondence in the user contracting data user data among the S-CSCF is upgraded; When the DSAI among the HSS becomes non-activation by activation, HSS only will be used for iFC that the activation of service deexcitation handles and be included in user contracting data the user data among the S-CSCF is upgraded;
Further alternatively, receive when replacing conversation request that subscriber equipment initiates at S-CSCF from the conversation request of subscriber equipment or from third party's functional unit (as AS), preferential coupling is used for the iFC that the activation of service deexcitation is handled, if satisfy trigger condition, just will talk about and be routed on the pairing AS of this iFC.The present invention need do corresponding modification and expansion to the Cx interface between S-CSCF and the HSS to the introducing of activation of service state and DSAI.Below by Fig. 8 and Fig. 9 expansion to Cx interface is described.
As shown in Figure 8, be the UML schematic diagram of the present invention to the expansion of business information.The registration of S-CSCF response Cx-Put Resp+Cx-Pull Resp operation and HSS are upgraded in the Cx-Update_Subscr_Data operation of user data of S-CSCF at HSS, to increasing several DSAI elements in the expansion of user data (User Profile), can be associated by the ServerName attribute of AS among DSAI-Tag among each DSAI and the iFC, thereby DSAI and iFC are mapped one by one.All are triggered to the DSAI of the iFC of same AS corresponding to the last activation of service state of this AS of same indication.And write down the state (activating and un-activation) of this DSAI among each DSAI with DSAI-state.
As shown in Figure 9, be the UML schematic diagram of the present invention to the expansion of professional trigger condition among the iFC.Below the iFC trigger point, increase the DSAI element that optional data type is boolean,, be used for representing whether the business on the relevant AS is activated as the iFC trigger condition.Have only when this iFC trigger condition satisfies (when DSAI is state of activation), consider that just whether other professional trigger condition satisfies, then will talk about when the trigger condition when herein all satisfies be routed to the corresponding AS of this iFC on; When if the iFC trigger condition does not satisfy (DSAI is a unactivated state), then, all this session can be routed on the corresponding AS no matter whether other trigger conditions in this iFC trigger point satisfy.
As shown in figure 10, be session route schematic flow sheet among the present invention.
At first, when user equipment registration, after authentication was passed through, I-CSCF and HSS carried out being chosen as the S-CSCF of its service for subscriber equipment (UE) alternately; S-CSCF includes the information of DSAI to HSS request download user subscription data in this user contracting data, promptly by Cx interface DSAI is downloaded to S-CSCF as the part of user data from HSS.Perhaps in renewal process, HSS can upgrade the DSAI data among the S-CSCF (being its state) by Cx interface.
Alternatively, activate if desired and could be divided into two types by the professional corresponding iFC that AS handles, a kind of is to depend on the professional iFC that just carries out the associated trigger rule judgment that whether activates; Another kind is to be used for the iFC that the activation of service deexcitation is handled separately.Then HSS is when the download user subscription data, when having only indication AS to go up the professional DSAI information that whether activates to be state of activation, the iFC of AS correspondence all is included in the user contracting data downloads; Otherwise the iFC that only will be used for activation of service deexcitation processing is included in user contracting data and downloads.
Further alternatively, when the dynamic service among HSS sign is become when activating by non-activation, HSS all is included in the iFC of AS correspondence in the user contracting data user data among the S-CSCF is upgraded; When the DSAI among the HSS becomes non-activation by activation, HSS only will be used for iFC that the activation of service deexcitation handles and be included in user contracting data the user data among the S-CSCF is upgraded;
User's corresponding D SAI state among the HSS can be revised by the operation management mode by operator, also can in AS, change the state of DSAI by subscriber equipment to the activation deactivating operation of business by Ut, perhaps initiate a session request or replace subscriber equipment to initiate a session request to network by Gm, will talk about by S-CSCF by triggering rule and be routed to AS and carry out the activation of service deexcitation by the third party by subscriber equipment.Again by the Sh interface between HSS and the AS and the HSS state of this DSAI synchronously.When user-dependent DSAI data changed, HSS was by the DSAI data among the Cx interface modification S-CSCF.
When needs were set up session, subscriber equipment (UE) was to P-CSCF setup requests (INVITE), and P-CSCF transfers to S-CSCF with this request;
Set up in the process in session, whether S-CSCF judges from the iFC trigger condition among the iFC in the user contracting data of HSS and satisfies;
Alternatively, receive when replacing conversation request that subscriber equipment initiates at S-CSCF from the conversation request of subscriber equipment or from third party's functional unit (as AS), preferential coupling is used for the iFC that the activation of service deexcitation is handled, if satisfy trigger condition, just will talk about and be routed on the pairing AS of this iFC;
When if the iFC trigger condition that DSAI is relevant satisfies (DSAI corresponding with AS is state of activation), business on the expression AS activates, judge then whether other the professional trigger condition among this iFC all satisfies, if all satisfy, then this session is routed to the pairing AS of this iFC and goes up (in figure, will talk about be routed on the AS1); If still there are other trigger conditions not satisfy, then this session are not routed to the pairing AS1 of this iFC and go up (not drawing among the figure);
When if this iFC trigger condition does not satisfy (DSAI corresponding with AS is unactivated state), professional un-activation on the expression AS1, need not then to judge that whether other industry trigger condition among this iFC satisfies, and this session is not routed on the pairing AS1 of this iFC.
For the relevant Another Application server A S2 of business that the user contracts, only show a kind of situation of route in the drawings.In the present invention, can also by judge with the relevant iFC of this AS2 in the iFC trigger condition whether satisfy and realize different route situations, it is identical with the deterministic process of iFC trigger condition among the aforementioned iFC that AS1 is correlated with, does not describe in detail at this.
As shown in figure 11, be the configuration diagram of the network route optimization equipment among the present invention.
Store user contracting data among the HSS, and iFC is the part in the user contracting data, it has defined the condition and the purpose AS of professional triggering according to different priorities, and in the present invention, includes among this iFC and be used to characterize the iFC trigger condition whether user's signing service activates.This iFC can download to when the user registers among the S-CSCF that distributes into the user.
S-CSCF mainly includes iFC matching module, professional trigger condition module, route processing module and other functional modules.Wherein, the iFC matching module is used for setting up process in session, and whether matching detection satisfies from the iFC trigger condition among the iFC of HSS and other professional trigger conditions;
Store predetermined professional trigger condition in the professional trigger condition module;
The route processing module is used for the matching detection result according to the iFC matching module, and routing operations (for example carrying out professional trigger action) is carried out in session; In the present invention, the matching detection result comprises that the iFC trigger condition satisfies and the iFC trigger condition does not satisfy; Described iFC trigger condition satisfies attribute corresponding to this dynamic service active sign for activating, and it is un-activation that described iFC trigger condition does not satisfy the attribute that identifies corresponding to this dynamic service active.If the iFC trigger condition whether sign user signing service activates does not satisfy, expression user's signing service un-activation, the route processing module just can not be routed to this session on the pairing application server of this initial filter criteria (iFC) (AS).If this iFC trigger condition satisfies, expression user's signing service activates, then when other the professional trigger condition in this initial filter criteria (iFC) all satisfies, then this session is routed on the pairing application server of (triggering with sip message) this initial filter criteria (iFC) (AS).
Other functional modules among the S-CSCF are such as the module that is used for authentication, are used for the module of synchrodata etc., are not elaborated at this.
Application server receive from the SIP of S-CSCF is professional trigger message after, can control according to service logic set in the AS, finish intended service.
Wherein, iFC trigger condition correspondence be one with the professional relevant DSAI of AS, when the DSAI attribute was un-activation, then the iFC trigger condition did not satisfy, when the DSAI attribute when activating, then the iFC trigger condition is satisfied.All initial filter criteria that are triggered to same application server identify corresponding to a dynamic service active.HSS and AS can come this DSAI information synchronously by Sh interface.
By adopting method and apparatus of the present invention, the user have only signatory and activated that AS provides certain when professional S-CSCF just can talk about and be routed to corresponding AS, alternatively, subscriber equipment replaces subscriber equipment to carry out professional activation deactivating operation by S-CSCF by other functional unit (as AS) in Gm or the network just can talking about and be routed to corresponding AS, reduce the waste of alternative channel and resource, shortened the time that session is set up.And increased several in the S-CSCF download business information at HSS and corresponded respectively to DSAI sign of each iFC, simultaneously in each iFC, increased the iFC trigger condition whether a business that is used to determine AS activates newly, do not need to change the normal registration flow process, original other function such as the subscriber equipment that do not influence simultaneously network carry out professional activation deactivating operation by Gm, and other functional unit such as AS also can replace subscriber equipment to carry out professional activation deactivating operation by S-CSCF in the network.
Above disclosed only is the preferred embodiment that is used for the network route optimization method and apparatus of the present invention, certainly can not limit the present invention's interest field with this, therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (18)
1, a kind of network route optimization method that is used for is characterized in that, comprises the steps;
(a) set up in the process in session, serving CSCF judges whether characterize the iFC trigger condition whether user's signing service activate from being used in the initial filter criteria in the user contracting data of home subscriber server satisfies;
(b) serving CSCF determines whether this session is routed on the pairing application server of this initial filter criteria according to the judged result in the step (a).
2, the network route optimization method that is used for as claimed in claim 1 is characterized in that (a) may further include following steps before in step:
When an application server provides when activating with unactivated state professional, the initial filter criteria that the activation of service deexcitation is handled that is used for that a initial filter criteria than other type has higher processing priority is set, the initial filter criteria that described activation of service deexcitation is handled is separately corresponding to the triggering rule of the activation deexcitation of the business of an application server, perhaps comprises describedly will trigger business triggering rule relevant with the activation of service deexcitation in one or more initial filter criteria of same application server.
3, the network route optimization method that is used for as claimed in claim 2 is characterized in that, may further include following steps:
In user registration course, serving CSCF is to home subscriber server request download user subscription data, and home subscriber server determines whether according to the professional dynamic service active identification information that whether activates on the indication application server that initial filter criteria with this application server correspondence all is included in and downloads or only will be used for initial filter criteria that the activation of service deexcitation handles in the user contracting data and be included in user contracting data and download;
Wherein, when the professional dynamic service active identification information that whether activates is state of activation on the indication application server, the initial filter criteria of application server correspondence all is included in the user contracting data downloads; Otherwise the initial filter criteria that only will be used for activation of service deexcitation processing is included in user contracting data and downloads;
4, the network route optimization method that is used for as claimed in claim 3 is characterized in that, further comprises the steps:
(c) according to the change of the residing state of the pairing business of application server, home subscriber server upgrades the user signing contract information in the serving CSCF by Cx interface.
5, the network route optimization method that is used for as claimed in claim 4 is characterized in that, described step (c) further comprises:
Dynamic service in angelica client server sign is become when activating by non-activation, and home subscriber server is included in whole initial filter criteria of application server correspondence in the user contracting data user data in the serving CSCF is upgraded;
When dynamic service in angelica client server sign became non-activations by activation, the initial filter criteria that home subscriber server only will be used for activation of service deexcitation processing was included in user contracting data the user data in the serving CSCF is upgraded.
6, as each described network route optimization method that is used for of claim 1 to 2, it is characterized in that, may further include following steps:
(d) receive when replacing conversation request that subscriber equipment initiates at serving CSCF from the conversation request of subscriber equipment or from third party's functional unit, preferential coupling is used for the initial filter criteria that the activation of service deexcitation is handled, if satisfy trigger condition, will talk about and be routed on the pairing application server of this initial filter criteria.
7, the network route optimization method that is used for as claimed in claim 6 is characterized in that:
Third party's functional unit in the described step (d) comprises application server.
8, the network route optimization method that is used for as claimed in claim 1 is characterized in that, described step (b) further comprises:
(b1) if this iFC trigger condition does not satisfy in the step (a), need not this session is routed on the pairing application server of this initial filter criteria.
9, the network route optimization method that is used for as claimed in claim 1 is characterized in that, described step (b) further comprises:
(b2), judge then whether other the professional trigger condition in this initial filter criteria all satisfies if this iFC trigger condition satisfies in the step (a);
If the professional trigger condition of other in this initial filter criteria all satisfies, then this session is routed on the pairing application server of this initial filter criteria; If other professional trigger condition does not all satisfy in this initial filter criteria, then need not this session is routed on the pairing application server of this initial filter criteria.
10, as each described network route optimization method that is used for of claim 1 to 9, it is characterized in that (a) further comprises the steps: before in step
Serving CSCF includes in this user contracting data and is used to indicate the professional dynamic service active identification information that whether activates on the application server to home subscriber server request download user subscription data.
As each described network route optimization method that is used for of claim 1 to 9, it is characterized in that 11, all initial filter criteria that are triggered to same application server identify corresponding to a dynamic service active.
12, the network route optimization method that is used for as claimed in claim 11 is characterized in that, further comprises the steps:
(e) according to the change of the residing state of activation of the pairing business of application server, the dynamic service active identification information in the serving CSCF is upgraded.
13, the network route optimization method that is used for as claimed in claim 12 is characterized in that, described step (e) further comprises:
In renewal process, home subscriber server upgrades the dynamic service active identification information among the S-CSCF by Cx interface.
14, the network route optimization method that is used for as claimed in claim 13 is characterized in that, described step (e) further comprises:
In application server, change the dynamic service active identification information by subscriber equipment by Ut, perhaps initiate a session request or replace subscriber equipment to initiate a session request to network by Gm by the third party by subscriber equipment, will talk about by S-CSCF by triggering rule and to be routed to AS and to carry out the activation of service deexcitation, and between home subscriber server and the application server by Sh interface this dynamic service active identification information synchronously.
15, the network route optimization method that is used for as claimed in claim 13 is characterized in that, described step (e) further comprises:
Whether activate according to business and to utilize the operation management mode at home subscriber server change dynamic service active identification information, between application server and the home subscriber server by Sh interface this dynamic service active identification information synchronously.
16, a kind of equipment that is used for network route optimization is characterized in that, comprises at least:
Whether the iFC matching module is used for matching detection and characterizes the iFC trigger condition whether user's signing service activate from being used in the initial filter criteria in the user contracting data of home subscriber server and satisfy;
The route processing module is used for the matching detection result according to the iFC matching module, determines whether this session is routed on the pairing application server of this initial filter criteria.
17, the equipment that is used for network route optimization as claimed in claim 16 is characterized in that, further comprises:
Professional trigger condition module, it stores predetermined professional trigger condition, is used for when the iFC trigger condition satisfies, and is further detected by described iFC matching module.
18, as claim 16 or the 17 described equipment that are used for network route optimization, it is characterized in that, include the dynamic service active identification information that is used to indicate professional residing state of activation on the application server in the described user contracting data, described matching detection result comprises that the iFC trigger condition satisfies and the iFC trigger condition does not satisfy; Described iFC trigger condition satisfies attribute corresponding to this dynamic service active sign for activating, and it is un-activation that described iFC trigger condition does not satisfy the attribute that identifies corresponding to this dynamic service active.
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| CN106161651A (en) * | 2016-08-30 | 2016-11-23 | 成都科来软件有限公司 | A kind of data screening method based on BlueDrama |
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