CN101163070B

CN101163070B - Method of implementing the third party logon procedure in IP multimedia subsystem

Info

Publication number: CN101163070B
Application number: CN2007101435335A
Authority: CN
Inventors: 陈志峰; 郝振武; 刘伟; 李世涛
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2007-08-07
Filing date: 2007-08-07
Publication date: 2011-03-16
Anticipated expiration: 2027-08-07
Also published as: CN101163070A

Abstract

The invention discloses a realization method of a third-party registration process in an IP multimedia subsystem. In the third-party registration process from an S-CSCF to an AS, first of all, the S-CSCF selects an iFC, and the AS default disposal feature of the iFC is SESSION_TERMINATED. A third-party registration process request is sent to the AS, which is corresponded with the selected iFC. The invention process the third-party registration process according to the order of the AS default disposal feature in the iFC, and the failures in the registration process can be found out as soon as possible. So the cancellation process can be produced by the network side in time. The invention solves the problem of long disposal time probably caused by that the third-party registration process is processed according to the order of the priority level of the iFC in the IP multimedia subsystem.

Description

The implementation method of third-party registration process in a kind of IP Multimedia System

Technical field

The present invention relates to the communications field, relate in particular to the implementation method of third-party registration process in a kind of IP Multimedia System.

Background technology

IP Multimedia System (IP Multimedia Subsystem, be called for short IMS) be third generation affiliate tissue (3rd Generation Partnership Project, abbreviation 3GPP) standard of the next generation network of definition, its distinguishing feature is to have adopted SIP (Session Initiation Protocol, session initiation protocol) system, communication is irrelevant with access, can possess multiple media business controlled function separates with bearing capacity, calling separates with session, application separates with service, business and network detach, and multiple abilities such as mobile network and internet service fusion, the trend of communication network fusion development has been complied with in the proposition of IMS.

Major function entity in the IMS system comprises: call conversation control entity (the Call Session Control Function that functions such as user's registration management, session control are provided, be called for short CSCF), home subscriber server (the Home Subscriber Server of centralized management user contracting data function is provided, be called for short HSS), the application server (Application Server is called for short AS) of miscellaneous service logic control function is provided.

Fig. 1 is IMS user's the register flow path figure that comprises third-party registration, relate generally to following functional entity and equipment: subscriber equipment (User Equipment, be called for short UE), proxy call conversation control function entity (Proxy Call Session Control Function, be called for short P-CSCF), query call conversation control function entity (Interrogating Call Session Control Function, be called for short I-CSCF), service call session control function entity (Serving Call Session Control Function, be called for short S-CSCF), HSS, and AS.

Registration process comprises registration, cancellation and the heavy register flow path of UE in the IMS system, and the user must carry out register flow path before using the IMS business, and its process may further comprise the steps as shown in Figure 1:

S101, UE sends register requirement to P-CSCF;

S102 when P-CSCF receives register requirement, finds the I-CSCF of user attaching Network Access Point by DNS (Domain Name System, domain name system) inquiry or other method, and register requirement is forwarded to I-CSCF;

S103, I-CSCF sends a request message to HSS, and request distributes S-CSCF;

S104, HSS return the ability of the S-CSCF name or the S-CSCF of distribution to I-CSCF;

S105, I-CSCF sends to selected S-CSCF with login request message;

S106～S116, if S-CSCF need carry out authentication to the user, need so to obtain the authentification of user vector to HSS, and according to the Ciphering Key that returns in the S107 message, structure challenge request (401Unauthorized message) is after this challenge request is forwarded to UE, UE constructs challenge responses, after S-CSCF receives S115 challenge responses message, judge user's legitimacy, finish authentication, authentication the user; If do not need authentication, can directly carry out S117;

S117, S-CSCF sends the request of user's configuration data to HSS;

S118, HSS stores S-CSCF information, and user contracting data, charging address information are returned S-CSCF, and described user contracting data comprises the initial filter criteria (initial FilterCriteria is called for short iFC) of a plurality of tabular forms;

S119, the S-CSCF storing subscriber information comprises user contracting data, charging address etc.;

S120～S122, S-CSCF makes up the response of succeeding in registration, and response forwards UE to behind I-CSCF and P-CSCF;

S123, S-CSCF analyzes all iFC in the user contracting data, promptly reads iFC all in the user contracting data, and chooses an iFC that priority is high; And the AS of this iFC correspondence initiated third-party registration;

S124 sends the third-party registration request to the AS of the iFC correspondence of choosing, and after being sent completely, S-CSCF will wait for the arrival until this third party's request responding;

S125 collects the third-party registration success response;

S126, S-CSCF will analyze follow-up iFC behind the previous third-party registration of finishing dealing with, and choose the iFC of a high priority;

S127, after the AS of the iFC correspondence that this is chosen sent the third-party registration request, the same obstruction waited for third party's request responding;

S128 collects the third-party registration success response, with the mode of S125 response is handled;

S129 continues to analyze residue iFC, if also have the AS of iFC correspondence need carry out third-party registration, carries out the handling process of S126～S128 with circulating, and needs third-party registration if no longer include iFC, and then this registration is finished.

After finishing dealing with smoothly to S129, and all third-party registration successes, all business that UE can normally use the IMS network to provide just can be provided.

Fig. 2 is the formation schematic diagram of the iFC of tabular form, and wherein iFC comprises the AS information of priority characteristic, iFC correspondence, and comprises or do not comprise 1 trigger point information; Described AS information comprises Service name information and default treatment characteristic, and comprises or do not comprise 1 information on services; If trigger point information arranged, then this trigger point information correspondence 1～n service trigger dot information.Wherein, described priority characteristic adopts integer type (Integer) expression of a 32bit; The Service name information of AS is used SIP URL (Uniform Resource Locator, URL(uniform resource locator)) expression; The default treatment characteristic of AS has adopted piece represents that according to type its value is respectively: " session _ termination " (SESSION_TERMINATED) with " session _ continuation " (SESSION_CONTINUED).

For the S123 among Fig. 1, S126 and S129 step, need judge which AS to carry out third-party registration to earlier, priority value is more little according to the priority of iFC, priority is high more during its corresponding AS registration, numerical priority value all is unique, and different iFC corresponding priorities do not allow identical.

For S125 and S128 step, the response of receiving is the response of succeeding in registration, and then carries out next step, promptly analyzes follow-up iFC.If the response of receiving is the registration failure response, need carry out subsequent treatment according to the default treatment characteristic of AS, if this characteristic is SESSION_TERMINATED, then will finish whole register flow path, initiate the logout flow path of network side by S-CSCF; If this characteristic is SESSION_CONTINUED, then the handling process of Ji Xuing with receive that when response of succeeding in registration is identical, promptly carry out the flow process that residue iFC is analyzed.

From top explanation as can be seen, in the third-party registration flow process in the current techniques, S-CSCF just sends the third-party registration request to next AS after need waiting for that the AS of previous transmission third-party registration request returns the registration response; And, S-CSCF carries out third-party registration according to the order of the priority of iFC to AS, so, if have AS to return the registration failure response, and this AS priority is lower, but the default treatment characteristic of its AS is SESSION_TERMINATED, then obvious, S-CSCF need expend the time of very long registration and wait, just knows and can't succeed in registration.So S-CSCF only carries out third-party registration according to the order of the priority of iFC to AS, be unusual poor efficiency.

In addition in IMS, nullify, heavily registration the time, may need to carry out that the third party nullifies, the third party heavily registers, its flow process and register flow path are basic identical, no longer are described in detail.

Summary of the invention

The technical problem to be solved in the present invention is exactly to solve in IP Multimedia System owing to only carry out the third-party registration process according to the order of the priority of iFC, might cause long problem of processing time.

In order to solve the problems of the technologies described above, the invention provides the implementation method of third-party registration process in a kind of IP Multimedia System, carry out in the third-party registration process to AS at S-CSCF, it is the iFC of SESSION_TERMINATED that S-CSCF selects AS default treatment characteristic earlier, sends the request of third-party registration process to the AS of the iFC correspondence of choosing; Selecting AS default treatment characteristic again is the iFC of SESSION_CONTINUED, sends the request of third-party registration process to the AS of the iFC correspondence of choosing.

Further,

Described third-party registration process is one of third-party registration, cancellation, heavy register flow path;

The request of described third-party registration process correspondingly is one of third-party registration request, third party's de-registration request, the heavy register requirement of third party;

Described third-party registration process response is correspondingly nullified response, third party and is heavily registered one of response for third-party registration response, third party.

Further, described method comprises the steps:

(1) UE is after the registration process success of S-CSCF, and S-CSCF analyzes the iFC in the user contracting data, and selecting AS default treatment characteristic is the iFC of SESSION_TERMINATED, sends the request of third-party registration process to the AS of the iFC correspondence of choosing;

(2) receive that sending third-party registration process request AS returns registration process response after, selecting AS default treatment characteristic again is the iFC of SESSION_CONTINUED, sends the request of third-party registration process to the AS of the iFC correspondence of choosing.

Further, described step (1) comprises the steps:

(1a) UE is after the registration process success of S-CSCF, and S-CSCF analyzes the iFC in the user contracting data, and selecting an AS default treatment characteristic is the iFC of SESSION_TERMINATED, sends the request of third-party registration process to the AS of this iFC correspondence;

(1b) S-CSCF is that the iFC of SESSION_TERMINATED analyzes to remaining AS default treatment characteristic, selects one of them iFC, sends the request of third-party registration process to the AS of this iFC correspondence; Repeated execution of steps (1b) all sends the request of third-party registration process up to the AS that to all AS default treatment characteristics is the iFC correspondence of SESSION_TERMINATED.

Further,

Select the mode of an iFC in described step (1a) and the step (1b), be one of following manner:

Selecting an AS default treatment characteristic arbitrarily is the iFC of SESSION_TERMINATED;

According to priority order from high to low, choosing AS default treatment characteristic successively is the iFC of SESSION_TERMINATED.

Further, described step (2) comprises the steps:

(2a) receive that sending third-party registration process request AS returns registration process response after, S-CSCF analyzes the iFC in the user contracting data, selecting an AS default treatment characteristic is the iFC of SESSION_CONTINUED, sends the request of third-party registration process to the AS of this iFC correspondence;

(2b) S-CSCF is that the iFC of SESSION_CONTINUED analyzes to remaining AS default treatment characteristic, selects one of them iFC, sends the request of third-party registration process to the AS of this iFC correspondence; Repeated execution of steps (2b) all sends the request of third-party registration process up to the AS that to all AS default treatment characteristics is the iFC correspondence of SESSION_CONTINUED.

Further,

Select the mode of an iFC in described step (2a) and the step (2b), be one of following manner:

Selecting an AS default treatment characteristic arbitrarily is the iFC of SESSION_CONTINUED;

According to priority order from high to low, choosing AS default treatment characteristic successively is the iFC of SESSION_CONTINUED.

Further, described step (1) comprises the steps:

(1A) UE is after the success of the registration process of S-CSCF, and S-CSCF is that the iFC of SESSION_TERMINATED analyzes to all the AS default treatment characteristics in the user contracting data, and sending order is set;

(1B) S-CSCF sends the request of third-party registration process to the AS of iFC correspondence successively according to sending order, all sends the request of third-party registration process up to the AS that to all AS default treatment characteristics is the iFC correspondence of SESSION_TERMINATED.

Further, in the described step (1A), S-CSCF is that the iFC of SESSION_TERMINATED analyzes to all the AS default treatment characteristics in the user contracting data, and the step of sending order is set, and is one of following manner:

All AS default treatment characteristics that S-CSCF reads in the user contracting data are the iFC of SESSION_TERMINATED, choose iFC successively arbitrarily, according to the order of selecting iFC sending order are set;

All AS default treatment characteristics that S-CSCF reads in the user contracting data are the iFC of SESSION_TERMINATED, according to priority order from high to low, choose iFC successively, according to the order of selecting iFC sending order are set.

Further, described step (2) comprises the steps:

(2A) receive that sending third-party registration process request AS returns registration process response after, S-CSCF is that the iFC of SESSION_CONTINUED analyzes to all the AS default treatment characteristics in the user contracting data, and sending order is set;

(2B) S-CSCF sends the request of third-party registration process to the AS of iFC correspondence successively according to sending order, all sends the request of third-party registration process up to the AS that to all AS default treatment characteristics is the iFC correspondence of SESSION_CONTINUED.

Further, in the described step (2A), S-CSCF is that the iFC of SESSION_CONTINUED analyzes to all the AS default treatment characteristics in the user contracting data, and the step of sending order is set, and is one of following manner:

All AS default treatment characteristics that S-CSCF reads in the user contracting data are the iFC of SESSION_CONTINUED, choose iFC successively arbitrarily, according to the order of selecting iFC sending order are set;

All AS default treatment characteristics that S-CSCF reads in the user contracting data are the iFC of SESSION_CONTINUED, according to priority order from high to low, choose iFC successively, according to the order of selecting iFC sending order are set.

Further,

Return the registration process response if receive all AS that sent the request of third-party registration process, then the third-party registration process is finished;

If receive that the AS that sends the request of third-party registration process returns the registration process failure response, its corresponding AS default treatment is SESSION_TERMINATED, then stops all these registration processes, and triggers the server end logout flow path by S-CSCF;

If receive that the AS that sends the request of third-party registration process returns the registration process failure response, its corresponding AS default treatment is SESSION_CONTINUED, if S-CSCF also needs to analyze iFC and sends the request of third-party registration process to corresponding AS, then continue to carry out; If be sent completely, wait for that then the AS that has sent the request of third-party registration process returns the registration process response; When receiving that all AS that sent the request of third-party registration process return the registration process response, then the third-party registration process is finished.

The present invention carries out the third-party registration process according to the order of the default treatment characteristic of AS among the iFC, can find the registration process failure as early as possible, so that in time carry out the logout flow path that network side is initiated, has shortened meaningless registration/cancellation/heavily registration and the time of waiting for; In addition, in the present invention, all right parallel processing third-party registration process, after the AS that need not to wait for the request of previous transmission third-party registration returns the registration process response, promptly send the request of third-party registration process, more shortened the registration process time, improved execution efficient to next AS; And consider the characteristic of " registration " method among the IMS, its registration logic can't produce conflict with the serial logon mode, so this method improved registration process efficient, and existing architectural framework is not adjusted, only need S-CSCF is processed the modification of flow process, simple possible.

Description of drawings

Fig. 1 is the register flow path figure that IMS user comprises the third-party registration process in the prior art;

Fig. 2 is the formation schematic diagram of iFC;

Fig. 3 is the register flow path figure that comprises the third-party registration process of the embodiment of the invention;

Fig. 4 is the logout flow path figure that comprises the third-party registration process of the embodiment of the invention;

The heavy register flow path figure that comprises the third-party registration process of Fig. 5 embodiment of the invention.

Embodiment

In this article, third-party registration, cancellation, heavy register flow path are similar, are referred to as the third-party registration process, and correspondingly, third-party registration request, third party's de-registration request, third party are heavy, and register requirement is referred to as the request of third-party registration process; Third-party registration response, third party nullify response, third party and heavily register response and be referred to as the third-party registration process and respond.

Core concept of the present invention is, UE is after registration process (the comprising registration/cancellation/heavily registration) success of S-CSCF, S-CSCF is no longer only according to the selective sequential iFC of the priority of iFC, carry out the third-party registration process, but mainly determine to select the order of iFC, and to the request of qualified AS transmission third-party registration process according to the default treatment characteristic of AS among the iFC.Like this, though can not return the response of registration process success because of the high AS of most of priority, but the AS that certain priority is low has returned the response of registration process failure, and because its default treatment characteristic is SESSION_TERMINATED, cause and passed through the very long processing time, just know the result of registration process failure.

In the present invention, analyzing AS default treatment characteristic earlier is the iFC of SESSION_TERMINATED, and then analyzing AS default treatment characteristic again is the iFC of SESSION_CONTINUED, can adopt parallel mode to handle third-party registration, that is:

Analyzed after the iFC, sent the request of third-party registration process respectively to a plurality of AS successively; Also can be: analyze iFC successively, choose priority high AS carry out the third-party registration process, send the registration process request, and then analyze follow-up iFC then, send the registration process request; Here with traditional solution different be after having sent previous registration process request, to need no longer to wait for that this request finishes, but carry out the analysis of follow-up iFC at once.

The present invention is described in detail below in conjunction with drawings and the specific embodiments.

Embodiment one

As shown in Figure 3, for the embodiment of the invention one comprises the register flow path of third-party registration process, comprise the steps:

S301, UE finish the registration on S-CSCF, and its flow process is identical with the flow process of the described S101～S122 of Fig. 1, see the description of the corresponding flow process of Fig. 1 for details;

S302, S-CSCF carry out iFC and analyze, and promptly read the iFC in the user contracting data, select one of them iFC, and do not require and must choose the high iFC of priority, are the iFC of SESSION_TERMINATED but must choose AS default treatment characteristic;

S303 sends the third-party registration request to the AS of the iFC correspondence of choosing;

S304, analyzing residual A S default treatment characteristic is the iFC of SESSION_TERMINATED, promptly reading residual A S default treatment characteristic is the iFC of SESSION_TERMINATED, selects one of them iFC;

S305 sends the third-party registration request to the AS of the iFC correspondence of choosing;

If also to remain AS default treatment characteristic be the iFC of SESSION_TERMINATED then repeat the flow process of S304～S305 step, there is then not recirculation in S306 if no longer include the iFC that needs the third-party registration correspondence;

S307 receives the response of third-party registration, and operates according to response results;

S308 continues to receive the response of third-party registration, all finishes up to all third-party registration that sent;

S309, S-CSCF carry out iFC and analyze, and promptly read the iFC in the user contracting data, select one of them iFC, and what choose this moment is that AS default treatment characteristic is the iFC of SESSION_CONTINUED;

S310 sends the third-party registration request to the AS of the iFC correspondence of choosing;

S311, analyzing residual A S default treatment characteristic is the iFC of SESSION_CONTINUED, promptly reading residual A S default treatment characteristic is the iFC of SESSION_CONTINUED, selects one of them iFC;

S312 sends the third-party registration request to the AS of the iFC correspondence of choosing;

S313 is the iFC of SESSION_CONTINUED if also remain AS default treatment characteristic, then repeats the flow process of S311～S312 step, has then not recirculation if no longer include the iFC that needs the third-party registration correspondence;

S314 receives the response of third-party registration, and operates according to response results;

S315 continues to receive the response of third-party registration, all finishes up to all third-party registration, and this registration is at this moment finished.

Wherein, described step S302, S304, and step S309, among the S311, select the mode of iFC to be: select arbitrarily, also can be according to priority selective sequential from high to low.

In addition, present embodiment is that S-CSCF analyzes iFC, selects one of them iFC, sends the third-party registration request to the AS of the iFC correspondence of choosing; Again iFC is analyzed, select one of them iFC, send the third-party registration request to the AS of the iFC correspondence of choosing ..., carry out so successively; In actual applications, also can be S-CSCF to all AS default treatment characteristics be that the iFC of SESSION_TERMINATED or SESSION_CONTINUED analyzes, sending order is set, be that to read all AS default treatment characteristics be the iFC of SESSION_TERMINATED or SESSION_CONTINUED to S-CSCF, choose iFC, sending order is set according to the order of selecting iFC; Press sending order then and successively the AS of iFC correspondence is sent the third-party registration request; Here, choosing iFC also is to select arbitrarily, perhaps according to priority selective sequential from high to low.

In the present embodiment, the default treatment characteristic that sends to all AS waits all finishing of all third-party registration that sent after being the AS third-party registration request of iFC correspondence of SESSION_TERMINATED, carries out subsequent step again, as step S307, S308; In actual applications, can not wait for that also the AS that sends the third-party registration request returns the registration response, directly sends follow-up third-party registration request, to raise the efficiency.

At step S307, among the S308, return the registration failure response if receive the AS that sends the third-party registration request, then stop all these registration processes, and trigger the server end logout flow path by S-CSCF.

At step S314, among the S315, return the registration failure response if receive the AS that sends the third-party registration request, if S-CSCF also needs to analyze iFC and sends the third-party registration request to corresponding AS, then continue to carry out; If be sent completely, wait for that then the AS that has sent the third-party registration request returns the registration response; When receiving that all AS that sent the third-party registration request return the registration response, then the third-party registration process is finished.

Embodiment two

As shown in Figure 4, for the embodiment of the invention two comprises the logout flow path of third-party registration process, comprise the steps:

S401, UE finish the cancellation on S-CSCF, and the register flow path of its flow process and the described S101～S122 of Fig. 1 is basic identical, just nullify with register flow path in corresponding SIP message different, the SIP message is not paid close attention in this aspect, here detailed description no longer;

S402 carries out iFC and analyzes, and promptly reads the iFC in the user contracting data, selects one of them iFC, and does not require and must need to choose the high iFC of priority, is the iFC of SESSION_TERMINATED but must choose AS default treatment characteristic;

S403 sends third party's de-registration request to the AS of the iFC correspondence of choosing;

S404, analyzing residual A S default treatment characteristic is the iFC of SESSION_TERMINATED, promptly reading residual A S default treatment characteristic is the iFC of SESSION_TERMINATED, selects one of them iFC;

S405 sends third party's de-registration request to the AS of the iFC correspondence of choosing;

S406 if also remain iFC then repeat the flow process of S704～S705 step, needs the third party to nullify corresponding iFC to have then not recirculation if no longer include;

S407 receives the response that the third party nullifies, and operates according to response results;

S408 continues to receive the response that the third party nullifies, and nullifies up to all third parties that sent and all finishes;

S409 carries out iFC and analyzes, and promptly reads the iFC in the user contracting data, selects one of them iFC, and what choose this moment is that AS default treatment characteristic is the iFC of SESSION_CONTINUED;

S410 sends third party's de-registration request to the AS of the iFC correspondence of choosing;

S411, analyzing residual A S default treatment characteristic is the iFC of SESSION_CONTINUED, promptly reading residual A S default treatment characteristic is the iFC of SESSION_CONTINUED, selects one of them iFC;

S412 sends third party's de-registration request to the AS of the iFC correspondence of choosing;

S413 if also remain iFC then repeat the flow process of S711～S712 step, needs the third party to nullify corresponding iFC to have then not recirculation if no longer include;

S414 receives the response that the third party nullifies, and operates according to response results;

S415 continues to receive the response that the third party nullifies, and nullifies up to all third parties and all finishes, and this cancellation is at this moment finished.

Embodiment three

As shown in Figure 5, for the embodiment of the invention three comprises the heavy register flow path of third-party registration process, comprise the steps:

S501, UE finish the heavily registration on S-CSCF, and the register flow path of its flow process and the described S101～S122 of Fig. 1 is basic identical, heavy corresponding SIP message different in registration and the register flow path just, and the SIP message is not paid close attention in this aspect, here detailed description no longer;

S502 carries out iFC and analyzes, and promptly reads the iFC in the user contracting data, selects one of them iFC, and does not require and must need to choose the high iFC of priority, is the iFC of SESSION_TERMINATED but must choose AS default treatment characteristic;

S503 sends the heavy register requirement of third party to the AS of the iFC correspondence of choosing;

S504, analyzing residual A S default treatment characteristic is the iFC of SESSION_TERMINATED, promptly reading residual A S default treatment characteristic is the iFC of SESSION_TERMINATED, selects one of them iFC;

S505 sends the heavy register requirement of third party to the AS of the iFC correspondence of choosing;

S506, analyzing residual A S default treatment characteristic is the iFC of SESSION_TERMINATED, if also remain iFC then repeat the flow process of S904～S905 step, needs the third party heavily to register corresponding iFC to have then not recirculation if no longer include;

S507 receives the response that the third party heavily registers, and operates according to response results;

S508 continues to receive the response that the third party heavily registers, and heavily registers all up to all third parties that sent and finishes;

S509 carries out iFC and analyzes, and promptly reads the iFC in the user contracting data, selects one of them iFC, and what choose this moment is that AS default treatment characteristic is the iFC of SESSION_CONTINUED;

S510 sends the heavy register requirement of third party to the AS of the iFC correspondence of choosing;

S511, analyzing residual A S default treatment characteristic is the iFC of SESSION_CONTINUED, promptly reading residual A S default treatment characteristic is the iFC of SESSION_CONTINUED, selects one of them iFC;

S512 sends the heavy register requirement of third party to the AS of the iFC correspondence of choosing;

S513, analyzing residual A S default treatment characteristic is the iFC of SESSION_CONTINUED, if also remain iFC then repeat the flow process of S911～S912 step, needs the third party heavily to register corresponding iFC to have then not recirculation if no longer include;

S514 receives the response that the third party heavily registers, and operates according to response results;

S515 continues to receive the response that the third party heavily registers, and heavily registers all up to all third parties and finishes, and this heavy registration is at this moment finished.

In embodiment two, embodiment three, similar embodiment one, select the mode of iFC to be: select arbitrarily, also can be according to priority selective sequential from high to low.

In addition, the mode that the AS of embodiment two, three pairs of iFC correspondences of embodiment sends third party's cancellation/weight register requirement also can be: S-CSCF is that the iFC of SESSION_TERMINATED or SESSION_CONTINUED analyzes to all AS default treatment characteristics, sending order is set, be that to read all AS default treatment characteristics be the iFC of SESSION_TERMINATED or SESSION_CONTINUED to S-CSCF, choose iFC, sending order is set according to the order of selecting iFC; Press sending order then and successively the AS of iFC correspondence is sent third party's cancellation/weight register requirement; Here, choosing iFC also is to select arbitrarily, perhaps according to priority selective sequential from high to low.

Equally, embodiment two, embodiment three do not wait for that the AS that sends third party's cancellation/weight register requirement returns cancellation/heavily registration response, directly sends follow-up third party's cancellation/weight register requirement, to raise the efficiency.

Among embodiment two, the embodiment three, return cancellation/heavily registration response if receive all AS that sent third party's cancellation/weight register requirement, then the third-party registration process is finished; Return cancellation/weight registration failure response if receive the AS that sends third party's cancellation/weight register requirement, its corresponding AS default treatment is SESSION_TERMINATED, then stop all this cancellation/weight registration processes, and trigger the server end logout flow path by S-CSCF; Return cancellation/weight registration failure response if receive the AS that sends third party's cancellation/weight register requirement, its corresponding AS default treatment is SESSION_CONTINUED, if S-CSCF also needs to analyze iFC and sends third party's cancellation/weight register requirement to corresponding AS, then continue to carry out; If be sent completely, wait for that then the AS that has sent third party's cancellation/weight register requirement returns cancellation/heavily registration response; When receiving that all AS that sent third party's cancellation/weight register requirement return cancellation/heavily registration response, then third party's cancellation/heavily registration is finished.

In sum, adopt the method for the invention, do not need existing IMS framework is made an amendment, just can reach the purpose that improves third-party registration efficient.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation, and protection scope of the present invention is as the criterion with claim.

Claims

1. the implementation method of third-party registration process in the IP Multimedia System, it is characterized in that, carry out in the third-party registration process to application server AS at service call session control function entity S-CSCF, it is the initial filter criteria iFC of session _ termination SESSION_TERMINATED that S-CSCF selects AS default treatment characteristic earlier, sends the request of third-party registration process to the AS of the iFC correspondence of choosing; Selecting AS default treatment characteristic again is the iFC of session _ continuation SESSION_CONTINUED, sends the request of third-party registration process to the AS of the iFC correspondence of choosing.

2. method according to claim 1 is characterized in that,

3. method according to claim 1 and 2 is characterized in that described method comprises the steps:

(1) user equipment (UE) is after the registration process success of S-CSCF, S-CSCF analyzes the iFC in the user contracting data, selecting AS default treatment characteristic is the iFC of SESSION_TERMINATED, sends the request of third-party registration process to the AS of the iFC correspondence of choosing;

4. method according to claim 3 is characterized in that, described step (1) comprises the steps:

5. method according to claim 4 is characterized in that,

6. method according to claim 3 is characterized in that, described step (2) comprises the steps:

7. method according to claim 6 is characterized in that,

8. method according to claim 3 is characterized in that, described step (1) comprises the steps:

9. method according to claim 8, it is characterized in that in the described step (1A), S-CSCF is that the iFC of SESSION_TERMINATED analyzes to all the AS default treatment characteristics in the user contracting data, the step of sending order is set, is one of following manner:

10. method according to claim 3 is characterized in that, described step (2) comprises the steps:

11. method according to claim 10, it is characterized in that in the described step (2A), S-CSCF is that the iFC of SESSION_CONTINUED analyzes to all the AS default treatment characteristics in the user contracting data, the step of sending order is set, is one of following manner:

12. method according to claim 1 and 2 is characterized in that,