CN101754358B

CN101754358B - Processing method, system and device for canceling unregistered service session controller

Info

Publication number: CN101754358B
Application number: CN2008102392613A
Authority: CN
Inventors: 薛海强; 李刚; 段晓东; 欧阳聪星
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2008-12-05
Filing date: 2008-12-05
Publication date: 2012-07-11
Anticipated expiration: 2028-12-05
Also published as: CN101754358A

Abstract

The invention relates to a processing method and a system for canceling an unregistered service session controller. The method comprises the steps: when unregistered service is present in an unregistered called terminal, assigning a first A-CSCF session controller for processing the unregistered service to the called terminal and a second A-CSCF session controller for processing registered service to the called terminal; registering the called terminal on the second A-CSCF; and when the registration of the called terminal on the second A-CSCF succeeds, sending a cancellation request to the first A-CSCF by a distributive user data server D-HSS. According to the invention, the problem of the interaction between the unregistered services of newly-registered called terminal and called terminal can be taken into account while the unregistered service session controller is effectively canceled, and the unregistered service session controller of the called terminal is canceled after the registration of the called terminal on the session controller for service registration succeeds, thereby guaranteeing the smoothness of services and enhancing subscriber satisfaction.

Description

The processing method of canceling unregistered service session controller, system and device

Technical field

The present invention relates to the mobile communication technology field, especially relate to processing method, system and the device of canceling unregistered service session controller.

Background technology

IMS of future generation (Next Generation IMS is called for short NGIMS) system is a kind of IMS network of the distributed computing technology that merges, the NGIMS system simplification functional entity in the IMS network, the NGIMS system configuration is simpler.Proxy call conversation control function entity (P-CSCF) in original IMS network, query call conversation control function entity (I-CSCF), service call session control function entity (S-CSCF) are substituted by the access call conversation control function entity in the NGIMS system (Access CSCF is called for short A-CSCF).

In the NGIMS system, mainly there are three types of controlled entities in session control layer, strengthens name server (Enhanced DNS is called for short E-DNS), A-CSCF and distributed user data server (DistributedHSS is called for short D-HSS).

A-CSCF also claims conversation controller, mainly accomplishes functions such as user's access, session control and service trigger.

D-HSS mainly adopts distributed structure/architecture to store jumbo the whole network user data, based on the requirement of high reliability user data is realized redundancy backup, and guarantees the consistency at user data.

E-DNS, mainly accomplish following function:

The state of A-CSCF in the monitoring certain limit when the user terminal initiation request, according to the load balancing strategy, distributes corresponding A-CSCF to do the session control processing unit.

Realize the disaster tolerance mechanism of A-CSCF, when A-CSCF broke down, user terminal can obtain new A-CSCF address to E-DNS initiation request again.

Each user in the NGIMS system has one or more public user identity, sign oneself when being used for other telex networks.Public user identity is externally disclosed, in the conversation procedure that uses all kinds of business, uses.

In the NGIMS network, whether initiating registration process according to the user can be divided into user's login state: login state, exit state and unregistered state.Login state is meant that user's a public user identity accomplished registration process, has been assigned with A-CSCF; Exit state is meant that user's a public user identity do not initiate registration process at all; Unregistered state is meant that user's a public user identity do not initiate registration process, but this user has been allocated in advance A-CSCF or had an A-CSCF to preserve the corresponding user's of this ID descriptor as called.

The distribution of conversation controller in the NGIMS system (being A-CSCF) is inserting the side completion; For unregistered called subscriber; And this called subscriber has the situation of unregistered service, generally can allocate an A-CSCF (to call an A-CSCF in the following text) in advance for this called subscriber's unregistered service and handle unregistered service; In the conversation request process; Owing to find that this called subscriber is unregistered and have unregistered service, generally can for this called subscriber distribute one with handle the conversation request that the different new A-CSCF (to call the 2nd A-CSCF in the following text) of unregistered service handles the registration business.

If the unregistered service unregistered called subscriber carries out in the process, this called subscriber succeeds in registration, and the follow-up registration business of this called subscriber this moment will be accomplished by the 2nd A-CSCFF.Owing to there are two A-CSCF in the NGIMS system of this moment for called subscriber's service; I.e. an A-CSCF and the 2nd A-CSCF; For fear of conflict, it is its service that can only there be an A-CSCF the existing same time of regulation and stipulation for same called subscriber, therefore need notify a former promising A-CSCF who has unregistered called subscriber's distribution of unregistered service by D-HSS; Carry out to nullify and the operation of the business relevant by an A-CSCF, upgrade local information with this called subscriber.

In the prior art; Clearly do not provide when E-DNS for after having unregistered service and unregistered called subscriber and distributing the 2nd A-CSCF; When to the original A-CSCF starting logout flow path of this called subscriber; Therefore the problem of failure may occur nullifying, cause a D-HSS and an original A-CSCF directly also can continue to handle bulk redundancy information as nullifying failure, cancellation is failed and is caused the called subscriber to continue to use an original A-CSCF; Thereby cause business to be made mistakes, reduce the satisfaction of user system.

Summary of the invention

The system that the purpose of this invention is to provide processing method, distributed user data server and the canceling unregistered service session controller of canceling unregistered service session controller; To avoid owing to improper opportunity to the cancellation of original conversation controller; And the cancellation failure problem that causes, and the serial problem that causes therefrom.

For realizing above-mentioned purpose; The invention provides a kind of processing method of canceling unregistered service session controller; Comprising: when there is unregistered service in unregistered terminal called; Be an A-CSCF conversation controller of terminal called allocation process unregistered service, be the 2nd professional A-CSCF conversation controller of terminal called allocation process registration; Terminal called is registered on said the 2nd A-CSCF; When terminal called after succeeding in registration on said the 2nd A-CSCF, distributed user data server D-HSS sends de-registration request to an A-CSCF.

For realizing above-mentioned purpose; The invention provides a kind of distributed user data server; Comprising: judge module, judge whether terminal called registration on the two A-CSCF conversation controller professional for the registration of terminal called allocation process is successful, the notice of cancellation module; Be used for when judge module is judged terminal called and on the 2nd A-CSCF, succeeded in registration, send de-registration request to an A-CSCF conversation controller that is terminal called allocation process unregistered service.

For realizing above-mentioned purpose, the invention provides a kind of treatment system of canceling unregistered service session controller, comprising: calling terminal; Unregistered terminal called, distributed user data server D-HSS, wherein; Said D-HSS comprises: first judge module and notice of cancellation module; First judge module judges whether terminal called registration on the two A-CSCF conversation controller professional for the registration of terminal called allocation process is successful, when terminal called succeeds in registration on the 2nd A-CSCF; The notice of cancellation module is sent de-registration request to an A-CSCF conversation controller that is terminal called allocation process unregistered service.

The present invention can nullify an A-CSCF effectively; Thereby avoided relevant issues occurring owing to nullifying failure; As nullify the D-HSS and the original A-CSCF that fail and cause and directly also can continue to handle bulk redundancy information; Nullify failure and cause terminal called to continue to use original A-CSCF, thereby cause business to be made mistakes, reduce the user to the problems such as satisfaction of system etc.The present invention simultaneously considers the interaction problems between new registration terminal called and the unregistered service; Owing to after terminal called succeeds in registration, nullify an A-CSCF again on the 2nd A-CSCF; Therefore can avoid failing to succeed in registration because of the 2nd A-CSCF; And the service disconnection that causes, thereby guaranteed professional unobstructedly, improved user satisfaction.

Description of drawings

Fig. 1 is the flow chart of the processing method embodiment one of canceling unregistered service session controller of the present invention;

Fig. 2 is the flow chart of the processing method embodiment two of canceling unregistered service session controller of the present invention.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment, specifically the present invention is elaborated.

In the NGIMS network, whether initiating registration process according to terminal called can be divided into the login state of this terminal called: login state, exit state and unregistered state.Login state is meant that a public user identity of terminal called accomplished registration process, has been assigned with A-CSCF; Exit state is meant that a public user identity of terminal called do not initiate registration process at all; Unregistered state is meant that a public user identity of terminal called do not initiate registration process, but this terminal called has been allocated in advance A-CSCF or had an A-CSCF to preserve the corresponding user's of this terminal called descriptor as called.The terminal called that is in login state is registered terminal called, and the terminal called that is in unregistered state is unregistered terminal called.Because unregistered terminal called at this moment; Receiving the calling of calling terminal; Therefore the business of this terminal called of calling terminal calling is the unregistered service of this unregistered terminal called, therefore need be an A-CSCF of this terminal called allocation process unregistered service, just temporarily handles unregistered called unregistered service by an A-CSCF; But also need distribute the 2nd A-CSCF that matees with terminal called, be used to handle the follow-up registered business of terminal called.After being assigned the 2nd A-CSCF, unregistered terminal called at first will be registered on the 2nd A-CSCF, and after registration was accomplished, this moment, terminal called became registered terminal called.Problem to be solved by this invention is for initial conditions after the terminal called that is unregistered state has distributed the 2nd A-CSCF of the registered business that needs after being used to handle, the problem of when nullifying an A-CSCF.

Calling terminal UE1 calls out unregistered terminal called UE2 in the specific embodiment of the present invention.Wherein, the conversation controller of serving for UE1 is A-CSCF0, and wherein UE1 registers at A-CSCF0.When there is unregistered service in unregistered UE2,, be expressed as A-CSCF1 for the pre-assigned conversation controller of the unregistered service of unregistered UE2 is first call conversation control function entity; Because UE2 is unregistered and have unregistered service, here also can be for UE2 distribute a new conversation controller, promptly second call conversation control function entity is called the terminal called unregistered service session controller, is expressed as A-CSCF2; The unregistered service of UE2 among this embodiment is an example with the tone information, and this system also comprises tone information system (Voice Mail System is called for short VMS) accordingly.

Fig. 1 is the flow chart of the processing method embodiment one of canceling unregistered service session controller of the present invention.This embodiment, as shown in Figure 1, may further comprise the steps.

Step 1, calling terminal UE1 is to being the conversation request of calling terminal conversation controller A-CSCF0 initiation its service and that registered to terminal called UE2.

Step 2 triggers calling service at calling terminal A-CSCF0.

Step 3, calling terminal A-CSCF0 is to the professional conversation controller of D-HSS query processing terminal called.Calling terminal A-CSCF0 sends positional information restriction (LocationInformation Restriction is called for short LIR) signaling, the conversation controller that the query processing terminal called is professional through Cx interface to D-HSS.

Step 4, D-HSS finds that terminal called UE2 is unregistered, and unregistered service is arranged.Because UE1 is calling out unregistered UE2, this moment, UE2 just had unregistered service.

Step 5, D-HSS returns the capability set of the conversation controller that can handle the terminal called unregistered service to calling terminal A-CSCF0.D-HSS returns the capability set of the conversation controller that can handle the terminal called unregistered service through location information answer (Location InformationAnswer the is called for short LIA) signaling of Cx interface to calling terminal A-CSCF0.

Step 6, calling terminal A-CSCF0 selects a suitable conversation controller A-CSCF1 to handle the terminal called unregistered service according to the capability set that returns.

Step 7, calling terminal A-CSCF0 initiates a session request to A-CSCF1.

Step 8 after A-CSCF1 receives conversation request, finds that terminal called is unregistered; Initiate server-assignment request message (Server-Assignment-Request to D-HSS then; SAR), request comes the initial filter criteria (Initial Filter Criteria is called for short iFC) of download process terminal called unregistered service; Concrete, the message on the Cx interface between A-CSCF1 and the HSS is Cx-Put or Cx-Pull.

Step 9, D-HSS downloads unregistered service information, and preserves the relevant information of the A-CSCF1 that handles the terminal called unregistered service, like the A-CSCF1 address;

Step 10, D-HSS reply SAA (Server-Assignment-Answer) message is returned iFC from download to A-CSCF1 through the server-assignment of Cx interface; Concrete, the message on the Cx interface between A-CSCF2 and the HSS is Cx-Put Resp or Cx-Pull Resp.

Step 11, A-CSCF1 triggers the terminal called unregistered service, is tone information among this embodiment.

Step 12, A-CSCF1 are triggered to application corresponding server A S according to iFC with the terminal called unregistered service.

Step 13, after application server AS was received trigger request, the IMPU at record calling and called terminal and the relevant information of the A-CSCF1 that manages business were like the A-CSCF1 address.

Step 14, application server AS initiates a session request to the VMS of tone information system, then sets up session connection between calling terminal UE1 and the VMS.

Because terminal called UE2 is unregistered and have a unregistered service, here for UE2 distribute one with handle the different new conversation controller of unregistered service, i.e. the second call conversation control function entity A-CSCF2 handles the conversation request of the business of registration.

A-CSCF2 is generally distributed according to load balancing or network topological information by the enhancing name server in the system (Enhanced DNS is called for short E-DNS).

Can know by step 14; AS makes a call; Calling terminal just carries out to the call business (concerning current terminal called, being unregistered business) that terminal called takes place, and therefore can know when having unclosed unregistered service among the A-CSCF1; With the corresponding application server AS of terminal called unregistered service, can come initiatively acquisition to be the information of the conversation controller of the registration traffic assignments of terminal called through the change message of initiatively subscribing to conversation controller.As shown in Figure 1, comprising:

Step 15, AS sends the change subscribe request of conversation controller to D-HSS through the SNR message of Sh interface;

Step 16, the relevant information (like the A-CSCF2 address) that D-HSS replys the A-CSCF2 that (Push Notification Answer, be called for short PNA) will be different with A-CSCF1 through the sending out notice of Sh interface is pushed to AS.

Step 15, step 16, D-HSS if there be the A-CSCF2 different with A-CSCF1, informs AS with the address of A-CSCF2 according to the subscription of AS.Through under unregistered service, initiatively subscribing to the change message of conversation controller by application server; Come initiatively to obtain the method for information of the conversation controller of terminal called new registration; Thereby strengthened the interactivity between the unregistered service family of terminal called and this terminal called of new registration; The more new business of can deriving has thus improved user experience.

Owing to there are two A-CSCF in the system of this moment for the terminal called service; For fear of conflict; The existing same time of regulation and stipulation can only have an A-CSCF to be its service for same terminal called; In the method provided by the invention, D-HSS required to guarantee that terminal called succeeded in registration on A-CSCF2 before sending de-registration request to A-CSCF1.

The sub-process that terminal called succeeds in registration on A-CSCF2 comprises and following sub-process:

(1) A-CSCF2 receives the register requirement of terminal called;

(2) A-CSCF2 starts the authentication to terminal called to D-HSS;

(3) A-CSCF2 obtains the user description information of terminal called from D-HSS;

(4) A-CSCF2 responds to terminal called and succeeds in registration.

Receive the register requirement of terminal called for (1) A-CSCF2; Step 21 among concrete steps such as Fig. 1, step 26, UE2 initiates register requirement (REGISTER) to A-CSCF2.

Start authentication for (2) A-CSCF2 to D-HSS to terminal called; Following steps among concrete steps such as Fig. 1:

Step 22, A-CSCF2 sends multimedia authentication request MAR (Multimedia-Authentication-Request) message through Cx interface to D-HSS, includes the authentication information of terminal called request in this MAR message.

Step 23, A-CSCF2 receives D-HSS and replys MAA (Multimedia-Authentication-Answer) message through the multimedia authentication that Cx interface sends.

Step 24, A-CSCF2 sends the successful affirmation information of authentication, information encoding 401 to terminal called.

Step 25, the authentication success.

Obtain the user description information of terminal called from D-HSS for (3) A-CSCF2; Following steps among concrete steps such as Fig. 1:

Step 27, A-CSCF2 to D-HSS send server allocation request message (Server-Assignment-Request, SAR) message, with the request terminal called user description information;

Step 28, the user description information of download terminal called from D-HSS, and the address that update processing is registered professional A-CSCF2 in D-HSS;

Step 29, A-CSCF2 reception D-HSS returns server-assignment and replys SAA (Server-Assignment-Answer) message, comprises the user description information of terminal called in this SAA message.

Succeed in registration to the terminal called response for (4) A-CSCF2.Step 30 among concrete steps such as Fig. 1, A-CSCF2 responds to terminal called and succeeds in registration 200Ok.

When passing through step 21-step 30 terminal called after succeeding in registration on the A-CSCF2, D-HSS sends de-registration request to A-CSCF1.Comprise:

Step 131; D-HSS finds that the A-CSCF1 that has had been friends in the past is the UE2 service; When UE2 after succeeding in registration on the new A-CSCF2; D-HSS initiates de-registration request RTR (Registration-Termination-Request) message to A-CSCF2, and specifically the message on the Cx interface between D-HSS and the A-CSCF1 is Cx-Deregister, with notice A-CSCF1 starting logout flow path.

Step 132 after A-CSCF1 receives above-mentioned message, discharges session and deletion terminal called business datum.Comprise the professional control of the execution terminal called relevant, upgrade local information with cancellation, simultaneously, the operation that the follow-up business of A-CSCF1 triggering and this terminal called stops.

Step 133, A-CSCF1 returns to nullify to D-HSS and replys RTA

(Registration-Termination-Answer) message, concrete, the message on the Cx interface between A-CSCF1 and the D-HSS is Cx-Deregister Resp, returns to nullify to D-HSS and replys, and finishes this logout flow path.

Step 134 is when the A-CSCF that is found to be the terminal called service as D-HSS changes.

When having unclosed unregistered service among the A-CSCF1; With the corresponding application server AS of terminal called unregistered service, also can come initiatively acquisition to be the information of the conversation controller of the registration traffic assignments of terminal called through the change message of initiatively subscribing to conversation controller.Comprise:

1341, AS sends the change subscribe request of conversation controller to D-HSS through the SNR message of Sh interface;

1342, the relevant information (like the A-CSCF2 address) that D-HSS replys the A-CSCF2 that (Push Notification Answer, be called for short PNA) will be different with A-CSCF1 through the sending out notice of Sh interface is pushed to AS.

Step 1341, step 1342, D-HSS if there be the A-CSCF2 different with A-CSCF1, informs AS with the address of A-CSCF2 according to the subscription of AS.Through under unregistered service, initiatively subscribing to the change message of conversation controller by application server; Come initiatively to obtain the method for information of the conversation controller of terminal called new registration; Thereby strengthened the interactivity between the unregistered service family of terminal called and this terminal called of new registration; The more new business of can deriving has thus improved user experience.

Step 135; A-CSCF change according to application server in the step 15 is subscribed to is asked; And confirm that application server in the step 16 initiatively obtains the information of the conversation controller of terminal called new registration; Initiate A-CSCF data sending out notice request (Push NotificationRequest is called for short PNR) message through Sh interface to application server AS, wherein have the registration status information of UE2;

Step 136, application server sends PNA message through Sh interface to D-HSS.

Step 137, AS preserves the relevant information (A-CSCF2 address information) that D-HSS pushes the new conversation controller A-CSCF2 of the UE2 registration of coming.

Step 138 after A-CSCF2 nullifies the operation completion, is sent the end unregistered service to AS.

Step 139, AS will finish the forwards of unregistered service to the VMS for this unregistered service (Voice Mailbox) service.

Step 140, AS judges that unregistered service finishes, and has the IMPU at calling and called terminal and be the conversation controller A-CSCF0 of its service and the information of A-CSCF2.Can continue session according to predetermined service logic,, connect session such as the session of initiatively initiating the calling and called terminal.

When need there be unclosed unregistered service in the step 15 among this embodiment, step 16 in A-CSCF1; Therefore can initiate a session request for occurring in step 14, AS to the VMS of tone information system; Then set up session connection between calling terminal UE1 and the VMS; Explain that after this being about to carry out calling terminal calls out after the unregistered service of unregistered terminal called, any two consecutive steps before the step 135.

Preferable do not occur in two continuous actions between step 14 and the step 17.Because after AS receives trigger request in the step 13, the IMPU at record calling and called terminal and the relevant information of the A-CSCF1 that manages business; AS initiates a session request to the VMS of tone information system in the step 14; Then set up session connection between calling terminal UE1 and the VMS; Explain and after this be about to carry out the unregistered service that calling terminal is called out unregistered terminal called; And with the corresponding application server AS of terminal called unregistered service, in the time of need in A-CSCF1, having unclosed unregistered service, come initiatively to obtain information for the conversation controller of the registration traffic assignments of terminal called through the change message of initiatively subscribing to conversation controller; And the unregistered service of unregistered terminal called has just begun at this moment, therefore can guarantee to exist among the A-CSCF1 unclosed unregistered service.

This embodiment; Can nullify old conversation controller effectively; Thereby avoided owing to relevant issues appear in the cancellation failure, the D-HSS and the original A-CSCF that cause as nullifying failure directly also can continue to handle bulk redundancy information, and cancellation is failed and caused terminal called to continue to use original A-CSCF; Thereby cause business to be made mistakes, reduce the user to the problems such as satisfaction of system etc.The present invention simultaneously considers the interaction problems between new registration terminal called and the unregistered service; Because when terminal called is nullified old conversation controller (A-CSCF1) again after new conversation controller (A-CSCF2) succeeds in registration; Therefore can avoid failing to succeed in registration because of new conversation controller (A-CSCF2); And the service disconnection that causes, thereby guaranteed professional unobstructedly, improved user satisfaction.

Fig. 2 is the flow chart of the processing method embodiment two of canceling unregistered service session controller of the present invention.This embodiment comprises like embodiment one described step 11-16 and step 21-30; Be with the difference of the foregoing description one; A-CSCF1 is after receiving de-registration request; Whether carry out to nullify to operate and also comprise before: judging has unclosed unregistered service among the A-CSCF1, if having, then waits for carrying out to nullify after this unregistered service finishes again and operates; If no, then carry out the cancellation operation.After step 30, comprising:

Step 231; D-HSS finds that the A-CSCF1 that has had been friends in the past is the UE2 service; When UE2 after succeeding in registration on the new A-CSCF2; D-HSS initiates de-registration request RTR (Registration-Termination-Request) message to A-CSCF2, and specifically the message on the Cx interface between D-HSS and the A-CSCF1 is Cx-Deregister, with notice A-CSCF1 starting logout flow path.

Step 232; A-CSCF1 returns to nullify to D-HSS and replys RTA (Registration-Termination-Answer) message, and concrete, the message on the Cx interface between A-CSCF1 and the D-HSS is Cx-Deregister Resp; Return cancellation to D-HSS and reply, finish this logout flow path.

Step 233 when the unregistered service of terminal called UE2 is underway, even A-CSCF1 has received de-registration request, is still waited for the unregistered service completion.

Step 234, calling terminal use initiatively on-hook behind the unregistered service.

Step 235, calling terminal sends conversation end message, BYE to A-CSCF0.

Step 236, A-CSCF0 transmits conversation end message, BYE to A-CSCF1.

Step 237 after A-CSCF1 receives above-mentioned message, discharges session and deletion user data.Comprise the professional control of the execution terminal called relevant, upgrade local information with cancellation, simultaneously, the operation that the follow-up business of A-CSCF1 triggering and this terminal called stops.

Step 238 is when the A-CSCF that is found to be the terminal called service as D-HSS changes; Step 239 according to the A-CSCF change request that application server in the step 15 and 16 is subscribed to, is initiated A-CSCF data PNR message through Sh interface to application server AS, wherein has the registration status information of UE2; Step 240, application server sends PNA message through Sh interface to D-HSS.

Step 241, AS preserves the relevant information (A-CSCF2 address information) that D-HSS pushes the new conversation controller A-CSCF2 of the UE2 registration of coming.

Step 242 after A-CSCF1 nullifies the operation completion, is sent the end unregistered service to AS.

Step 243, AS will finish the forwards of unregistered service to the VMS for this unregistered service (Voice Mailbox) service.

Step 244, AS judges that unregistered service finishes, and has the IMPU of calling and called and be the conversation controller A-CSCF0 of its service and the information of A-CSCF2.Can continue session according to predetermined service logic,, connect session such as the session of initiatively initiating the calling and called terminal.

This embodiment is with respect to the embodiment one of the processing method of above-mentioned canceling unregistered service session controller; Old conversation controller (A-CSCF1) is after receiving de-registration request; Carry out and nullify operation,, then wait for carrying out again after this unregistered service finishes and nullify operation if having before through in the old conversation controller (A-CSCF1) whether the judgement of unclosed unregistered service being arranged; Thereby avoided when also having unclosed unregistered service; Owing to directly carry out and nullify operation, and influence the terminal called unregistered service of well afoot, guaranteed the continuity of unregistered service.

The present invention also provides a kind of distributed user data server; Comprising: the notice of cancellation module; Be used for when terminal called succeeds in registration, sending de-registration request on the 2nd A-CSCF conversation controller professional for the registration of terminal called allocation process to an A-CSCF conversation controller that is terminal called allocation process unregistered service.

The distributed user data server can also comprise: judge module is used to judge whether terminal called registration on the two A-CSCF conversation controller professional for the registration of terminal called allocation process is successful.

The distributed user data server can also comprise: push module, be used for the change subscribe request according to the conversation controller of application server AS transmission, the information of the 2nd A-CSCF that will be different with an A-CSCF is pushed to AS.

The present invention also provides a kind of treatment system of canceling unregistered service session controller.

This system comprises: calling terminal, unregistered terminal called, distributed user data server D-HSS, application server AS, D-HSS.Wherein D-HSS comprises: the notice of cancellation module is used for when terminal called succeeds in registration, sending de-registration request to the A-CSCF1 conversation controller that is terminal called allocation process unregistered service on the A-CSCF2 professional for the registration of terminal called allocation process.

Said D-HSS can also comprise: first judge module is used to judge whether terminal called registration on the two A-CSCF conversation controller professional for the registration of terminal called allocation process is successful.

A-CSCF1 can also comprise: second judge module, be used for judging whether A-CSCF1 has unclosed unregistered service, and if having, then wait for carrying out again after this unregistered service finishes and nullify operation; If no, then carry out the cancellation operation.

D-HSS can also comprise: detection module, when the A-CSCF2 that detects same terminal called and A-CSCF1 not simultaneously, notice D-HSS sends to AS with the relevant information of A-CSCF2.Wherein detection module can be different with the title of A-CSCF1 according to the title of A-CSCF2, detect the A-CSCF2 different with A-CSCF1.

AS can comprise subscribing module, and when having unclosed unregistered service among the A-CSCF1, AS sends the change subscribe request of conversation controller to D-HSS;

D-HSS can comprise the propelling movement module, is used for according to receiving said change subscribe request, and the relevant information of the A-CSCF2 that notice D-HSS will be different with A-CSCF1 is pushed to AS.

AS can comprise the session initiation module, after AS receives the relevant information of A-CSCF2 and receives the unregistered service end, continues session according to the intended service logic.

What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.

Claims

1. the processing method of a canceling unregistered service session controller is characterized in that, this method comprises:

When there is unregistered service in unregistered terminal called, for first of terminal called allocation process unregistered service inserts call conversation control function entity A-CSCF conversation controller; Be the 2nd professional A-CSCF conversation controller of terminal called allocation process registration;

Terminal called is registered on said the 2nd A-CSCF;

When terminal called after succeeding in registration on said the 2nd A-CSCF, distributed user data server D-HSS sends de-registration request to an A-CSCF.

2. method according to claim 1 is characterized in that, after an A-CSCF receives de-registration request, carries out and nullifies operation.

3. method according to claim 2 is characterized in that, after an A-CSCF receives de-registration request, carries out the cancellation operation and also comprises before: judge whether unclosed unregistered service is arranged among the A-CSCF; If unclosed unregistered service is arranged, then wait for carrying out again after this unregistered service finishes and nullify operation; If there is not unclosed unregistered service, then carries out and nullify operation.

4. method according to claim 1 is characterized in that, distributed user data server D-HSS detects two A-CSCF different with an A-CSCF, and the information of the 2nd A-CSCF is sent to application server AS.

5. method according to claim 3; It is characterized in that; When among the A-CSCF unclosed unregistered service being arranged, also comprise: D-HSS is according to the change subscribe request of the conversation controller of the AS transmission that receives, and the information of the 2nd A-CSCF that will be different with an A-CSCF is pushed to AS.

6. according to claim 4 or 5 described methods, it is characterized in that after AS received the information of the 2nd A-CSCF and receives the unregistered service end, AS initiatively was initiated to the session of calling terminal, terminal called.

7. according to the arbitrary described method of claim 1-5, it is characterized in that terminal called carries out registration packet and draws together on the 2nd A-CSCF:

The 2nd A-CSCF receives the register requirement of terminal called;

The 2nd A-CSCF starts the authentication to terminal called to D-HSS;

The 2nd A-CSCF obtains the user description information of terminal called from D-HSS;

The 2nd A-CSCF responds to terminal called and succeeds in registration.

8. method according to claim 7 is characterized in that, said the 2nd A-CSCF comprises to the authentication that D-HSS starts terminal called:

The 2nd A-CSCF sends multimedia authentication request MAR message to D-HSS;

The 2nd A-CSCF receives the multimedia authentication of D-HSS transmission and replys MAA message;

The 2nd A-CSCF sends the successful affirmation information of authentication to terminal called.

9. method according to claim 7 is characterized in that, said the 2nd A-CSCF obtains the terminal called user description information from D-HSS and comprises:

The 2nd A-CSCF sends the server-assignment request SAR message that comprises the user description information of asking terminal called to D-HSS;

From D-HSS, download the user description information of terminal called, the address of the 2nd A-CSCF that the registration of D-HSS update processing is professional;

The 2nd A-CSCF reception D-HSS returns the server-assignment of the user description information that comprises terminal called and replys SAA message.

10. method according to claim 3 is characterized in that, also comprises:

After the one A-CSCF receives the message of unregistered service end, discharge the business datum of session and deletion terminal called.

11. a distributed user data server is characterized in that, comprising:

The notice of cancellation module; Be used for when terminal called succeeds in registration, sending de-registration request on the second access call conversation control function entity A-CSCF conversation controller professional for the registration of terminal called allocation process to an A-CSCF conversation controller that is terminal called allocation process unregistered service.

12. distributed user data server according to claim 11 is characterized in that, also comprises:

Judge module is used to judge whether terminal called registration on the two A-CSCF conversation controller professional for the registration of terminal called allocation process is successful.

13. according to claim 11 or 12 described distributed user data servers, it is characterized in that, also comprise:

Push module, be used for the change subscribe request according to the conversation controller of application server AS transmission, the information of the 2nd A-CSCF that will be different with an A-CSCF is pushed to AS.

14. the treatment system of a canceling unregistered service session controller; Comprise: calling terminal; Unregistered terminal called; Distributed user data server D-HSS is characterized in that, said D-HSS comprises: the notice of cancellation module; Be used for when terminal called succeeds in registration, sending de-registration request on the second access call conversation control function entity A-CSCF conversation controller professional for the registration of terminal called allocation process to an A-CSCF conversation controller that is terminal called allocation process unregistered service.

15. system according to claim 14 is characterized in that, said D-HSS also comprises:

First judge module is used to judge whether terminal called registration on the two A-CSCF conversation controller professional for the registration of terminal called allocation process is successful.

16. according to claim 14 or 15 described systems; It is characterized in that a said A-CSCF comprises: second judge module is used for judging whether an A-CSCF has unclosed unregistered service; If have, then wait for carrying out again after this unregistered service finishes and nullify operation; If no, then carry out the cancellation operation.

17. according to claim 14 or 15 described systems; It is characterized in that said treatment system also comprises application server AS, this AS comprises subscribing module; When having unclosed unregistered service among the A-CSCF, AS sends the change subscribe request of conversation controller to D-HSS;

D-HSS comprises the propelling movement module, is used for according to receiving said change subscribe request, and the information of the 2nd different with an A-CSCF among D-HSS A-CSCF is pushed to AS.

18. system according to claim 17 is characterized in that, said AS comprises the session initiation module, and after AS received the information of the 2nd A-CSCF and receives the unregistered service end, AS initiatively was initiated to the session of calling terminal, terminal called.