CN101631300B - Method for realizing third-party registration time length negotiation in IP multimedia subsystem - Google Patents
Method for realizing third-party registration time length negotiation in IP multimedia subsystem Download PDFInfo
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Abstract
The invention discloses two methods for realizing third-party registration time length negotiation in an IP multimedia subsystem. The first method has the core contents that: when S-CSCF carries out third-party registration, the third-party registration time length takes the registration time length of locally stored PUI and a maximum in the registration time length of current UE as the registration time length of the PUI. The second method has the core contents that: when the S-CSCF carries out the third-party registration, the third-party registration request carries PUI and PVI information; and after receiving the third-party registration request, the AS determines the registration time length of the PUI according to the PUI and PVI information carried in the registration request. The methods well solve the problem that user registration time lengths on the S-CSCF and the AS are not consistent during sharing PUI registration so as to ensure the consistency of user registration states and user data on the S-CSCF and the AS.
Description
Technical field
The present invention relates to the communications field, relate in particular to the method that in IMS (IP Multimedia subsystem, IP Multimedia System), realizes the third-party registration time length negotiation.
Background technology
IMS is 3GPP (3rd Generation Partnership Project, third generation affiliate tissue) 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, possesses the media business controlled function and 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: UE (User Equipment, subscriber equipment), P-CSCF (Proxy call session control Function, proxy call conversation control function entity), I-CSCF (Interrogating call session control Function, the query call conversation control function entity), S-CSCF (Serving call session control Function, service call session control function entity), HSS (Home subscriber Server, and AS (Application Server, application server) home subscriber server).
The user needed to carry out register flow path before using the IMS business among the IMS, and the process of registration is registered the UE position exactly on network, and successfully after the registration, P-CSCF goes up with S-CSCF can preserve relevant user data, so that professional use.According to signatory, S-CSCF also can carry out third-party registration to AS.See also Fig. 1, this figure is the flow chart that the user registers among the IMS in the prior art, and it mainly may further comprise the steps:
S101, UE sends register requirement to P-CSCF, has PUI (Public User Identity, public subscriber identification) and PVI (Private User Identity, private user identity) in the request;
S102～S105, register requirement arrives S-CSCF through P-CSCF, I-CSCF;
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～S121, the subscription data that the S-CSCF storage obtains from HSS, and construct the response of succeeding in registration, it is transmitted to UE by I-CSCF and P-CSCF, thereby has finished the registration of UE on S-CSCF;
S122～S124, S-CSCF send the third-party registration request according to user signing contract information to AS, PUI information is only arranged in the request message, no PVI information, registration time length is taken from the duration of UE and S-CSCF negotiation in the request, and registration time length is as effective duration of PUI in the AS preservation message.
In IMS, can share PUI by signatory a plurality of PVI, the so-called just a plurality of PVI of PUI of sharing share same PUI.See also Fig. 2, this figure is the schematic diagram that two PVI share a PUI, and wherein PVI1-PUI1 and PVI2-PUI1 can carry out independent registrations.According to prior protocols, standard, when occurring sharing the PUI registration, the last independent registrations duration (registration lifetime just) that can preserve PVI1-PUI1 and PVI2-PUI1 respectively of S-CSCF is because AS goes up no PVI information, have only PUI information, so AS goes up the registration time length that only can preserve a PUI1.
Specifically for instance, see also Fig. 3, this figure is the flow chart of third-party registration time length negotiation among the IMS in the prior art, as seen from the figure, when PVI1-PUI1 registers, the last duration to this log-on consultation of S-CSCF is T1 (as 6000s), and S-CSCF carries out third-party registration to PUI1, and it is T1 that AS preserves this PUI1 registration time length.When PVI2-PUI1 registered, the last duration to this log-on consultation of S-CSCF was T2 (as 100S), and S-CSCF carries out third-party registration to PUI1, and AS becomes T2 with the PUI1 registration time length.After this, when PVI2-PUI1 nullifies,,, PUI1 can not notify AS so nullifying S-CSCF according to consensus standard.The registration time length that will cause S-CSCF to go up PUI1 like this is T1, and the last PUI1 registration time length of AS is T2.As T2 during less than T1, the last PUI1 of AS can overtime logging off users.So registration time length is inconsistent may cause user registration state and user data between S-CSCF and the AS inconsistent, can't commence business, consequence is serious.
Summary of the invention
The invention provides the method that in IP Multimedia System, realizes the third-party registration time length negotiation, in order to solve S-CSCF and the last inconsistent problem of user's registration time length of AS among the existing IMS.
Technical scheme of the present invention is as follows:
A kind of method that realizes the third-party registration time length negotiation in IP Multimedia System comprises step:
A, subscriber equipment send register requirement to service call session control function entity;
B, service call session control function entity send the third-party registration request according to user signing contract information to application server, carry the public subscriber identification information of described subscriber equipment in the request, the registration time length in the request is got the maximum in the registration time length of the registration time length of local this public subscriber identification correspondence of preserving and this subscriber equipment;
C, application server are got the registration time length that carries in the third-party registration request registration time length as described public subscriber identification.
Further, among the described step B, if the public subscriber identification of described subscriber equipment was not registered on described service call session control function entity, then service call session control function entity with the registration time length of this subscriber equipment as the registration time length in the third-party registration request of application server transmission;
If the public subscriber identification of described subscriber equipment was once registered on described service call session control function entity, then the registration time length of service call session control function entity in the third-party registration request that application server sends got the maximum in the registration time length of the registration time length of local this public subscriber identification correspondence of preserving and this subscriber equipment.
Further, among the described step B, if there be the registration time length consistent in the local record of service call session control function entity with the private user identity of this user equipment registration, then the registration time length this locality not preserved of service call session control function entity and the registration time length of this subscriber equipment do not compare, directly with the registration time length of this subscriber equipment as the registration time length in the third-party registration request of application server transmission.
Further, comprise also behind the described step C that application server after finishing third-party registration request processing, returns the step of the response of succeeding in registration to service call session control function entity.
The present invention also provides another to realize the method for third-party registration time length negotiation in IP Multimedia System, comprises step:
A, subscriber equipment send register requirement to service call session control function entity;
B, service call session control function entity send the third-party registration request according to user signing contract information to application server, carry the public subscriber identification information and the private user identity information of described subscriber equipment in the request, and the registration time length of this subscriber equipment;
C, application server are checked the local record that whether has the registration time length of described public subscriber identification correspondence, if private user identity information in existence and this record and the private user identity information inconsistency in the third-party registration request, registration time length during then application server will write down and the maximum in the registration time length in the third-party registration request are as the registration time length of described public subscriber identification.
Further, described third-party registration request is carried the sign of private user identity or sign private user identity by extended field or spreading parameter.
Further, among the described step c, if there is not the record of the registration time length of described public subscriber identification correspondence in application server this locality, then application server is directly with the registration time length of the registration time length in the third-party registration request as described public subscriber identification, and public subscriber identification information, private user identity information and the corresponding registration time length that carries in the third-party registration request given record.
Further, among the described step c, if there is the record of the registration time length of described public subscriber identification correspondence in application server this locality, and the private user identity information in should writing down is consistent with the private user identity information in the third-party registration request, and then application server is directly with the registration time length of the registration time length in the third-party registration request as described public subscriber identification.
Comprise also behind the described step c that application server after finishing third-party registration request processing, returns the step of the response of succeeding in registration to service call session control function entity.
Compared with prior art, when above-mentioned two kinds of methods had well solved shared PUI registration, S-CSCF and AS went up the inconsistent problem of user's registration time length, thereby had guaranteed that S-CSCF and AS go up the consistency of user registration state and user data.
Description of drawings
Fig. 1 is the flow chart that the user registers among the IMS in the prior art;
Fig. 2 is the schematic diagram that two PVI share a PUI;
Fig. 3 is the flow chart of third-party registration time length negotiation among the IMS in the prior art;
Fig. 4 is first kind of realization principle flow chart of realizing the method for third-party registration time length negotiation in IMS among the present invention;
Fig. 5 is the flow chart of first kind of preferred embodiment of the method for realization third-party registration time length negotiation in IMS of the present invention;
Fig. 6 is first kind of realization principle flow chart of realizing the method for third-party registration time length negotiation in IMS among the present invention;
Fig. 7 is the flow chart for second kind of preferred embodiment of the method for realization third-party registration time length negotiation in IMS of the present invention.
Embodiment
For solving above-mentioned problems of the prior art, the invention provides two kinds of methods that in IMS, realize the third-party registration time length negotiation.Wherein, the core content of method one be S-CSCF when carrying out third-party registration, the third-party registration duration is got local PUI registration time length of preserving and the maximum in this UE registration time length, with its registration time length as PUI; The core content of method two be S-CSCF when carrying out third-party registration, in the third-party registration request, carry PUI and PVI information, after AS receives the third-party registration request, determine the registration time length of PUI according to the PUI that carries in the register requirement and PVI information.
Below in conjunction with each accompanying drawing specific implementation process of the present invention is further described in detail.
See also Fig. 4, this figure is first kind of realization principle flow chart of realizing the method for third-party registration time length negotiation in IMS among the present invention, and its main implementation procedure is as follows:
In this step, if the PUI of UE did not register on S-CSCF, then S-CSCF with the registration time length of this UE as the registration time length in the third-party registration request of AS transmission; If the PUI of UE once registered on S-CSCF, then the registration time length of S-CSCF in the third-party registration request that AS sends got the maximum in the registration time length of the registration time length of local this PUI correspondence of preserving and this UE.
In this step, if there is the consistent registration time length of PVI in the local record of S-CSCF with this UE registration, then S-CSCF need not registration time length that this locality is preserved and the registration time length of this UE compares, directly with the registration time length of this UE as the registration time length in the third-party registration request of AS transmission.
See also Fig. 5, this figure is the flow chart of first kind of preferred embodiment of the method for realization third-party registration time length negotiation in IMS of the present invention, and it mainly comprises step:
S501, UE1 (PVI1-PUI1) carries out initial registration, and register requirement arrives S-CSCF through behind P-CSCF, the I-CSCF;
S502, S-CSCF finish register requirement and handle, and return the response of succeeding in registration, and the response of succeeding in registration arrives UE through I-CSCF, P-CSCF;
S503, S-CSCF sends the third-party registration request according to user signing contract information to AS, and registration time length is got the registration time length T1 of UE1 and S-CSCF negotiation;
After S504, AS receive the third-party registration request, get registration time length T1 in the third-party registration request as the registration time length of PUI1;
After S505, AS handle the third-party registration request, return the response of succeeding in registration to S-CSCF.
S506, UE2 (as PVI2-PUI1) registers, and register requirement arrives S-CSCF through behind P-CSCF, the I-CSCF;
S507, S-CSCF finish register requirement and handle, and return the response of succeeding in registration, and the response of succeeding in registration arrives UE through I-CSCF, P-CSCF;
S508, S-CSCF are according to user signing contract information, and decision sends the third-party registration request to AS, and registration time length is got local PUI registration time length of preserving and the maximum of T 3 among this registration time length T2;
S509, S-CSCF sends the third-party registration request to AS, and the registration time length that carries in the request is the registration time length T3 that determines among the step S508;
After S510, AS receive the third-party registration request, with the registration time length T3 that carries in the request as the registration time length of PUI1;
S511 after AS handles register requirement, returns the response of succeeding in registration to S-CSCF.
After adopting the method for first kind of realization third-party registration time length negotiation in IMS among the present invention, when shared PUI registers, by S-CSCF decision third-party registration duration, AS need not any change, this method can solve S-CSCF and AS goes up the inconsistent problem of registration time length, has effectively avoided the inconsistent of user registration state and user data.
See also Fig. 6, this figure is first kind of realization principle flow chart of realizing the method for third-party registration time length negotiation in IMS among the present invention, and its main implementation procedure is as follows:
Described PVI information is the sign of PVI value or sign PVI, carry the sign of PVI value or sign PVI in the third-party registration request by extended field or spreading parameter, AS can distinguish the PUI registration that triggers in different PVI by this extended field or spreading parameter.
Step 62 after AS receives the third-party registration request, is checked the local record that whether has the registration time length of the PUI correspondence of carrying in the request, if exist, and execution in step 64, otherwise, execution in step 63.
See also Fig. 7, this figure is the flow chart of second kind of preferred embodiment of the method for realization third-party registration time length negotiation in IMS of the present invention, and it mainly comprises step:
S701, UE1 (PVI1-PUI1) carries out initial registration, and register requirement arrives S-CSCF through behind P-CSCF, the I-CSCF;
S702, S-CSCF finishes location registration process, returns the response of succeeding in registration, and response message arrives UE through I-CSCF, P-CSCF;
S703, S-CSCF is according to user signing contract information, decision sends the third-party registration request to AS, carry the PUI1 information of UE1 in the request, registration time length in the request is got the registration time length T1 of UE1 and S-CSCF negotiation, by extended field or spreading parameter, carry the sign of PVI1 or sign PVI1 simultaneously;
S704 because PUI1 is initial registration, after AS receives the third-party registration request, gets registration time length T1 in the request as the registration time length of PUI1 on AS, preserve the flag information of PVI1 or sign PVI1 simultaneously;
After S705, AS handle the third-party registration request, return the response of succeeding in registration to S-CSCF.
S706, UE2 (PVI2-PUI1) registers, and register requirement arrives S-CSCF through behind P-CSCF, the I-CSCF;
S707, S-CSCF finishes location registration process, returns the response of succeeding in registration, and the response of succeeding in registration arrives UE through I-CSCF, P-CSCF;
S708, S-CSCF is according to user signing contract information, decision sends the third-party registration request to AS, carry the PUI1 information of UE2 in the request, registration time length in the request is got the registration time length T2 of UE2 and S-CSCF negotiation, by extended field or spreading parameter, carry the sign of PVI2 or sign PVI2 simultaneously;
S709, after AS receives the third-party registration request, obtain the relevant PVI identification information of the local PUI1 that preserves, if and the PVI sign is inconsistent in the message, then obtain local PUI1 registration time length of preserving and the registration time length T2 in the register requirement, get between the two maximum as the registration time length of PUI1; If PVI identifies consistent, then with the registration time length of the registration time length in the third-party registration request as PUI1;
S710 after AS handles register requirement, returns the response of succeeding in registration to S-CSCF.
After adopting the method for second kind of realization third-party registration time length negotiation in IMS among the present invention, when shared PUI registers, in the third-party registration request, carry the sign of PVI or sign PVI by extended field or spreading parameter by S-CSCF, AS need determine the registration time length of PUI by comparing PVI information, this method can solve S-CSCF and AS goes up the inconsistent problem of registration time length, has effectively avoided the inconsistent of user registration state and user data.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (9)
1. a method that realizes the third-party registration time length negotiation in IP Multimedia System is characterized in that, comprises step:
A, subscriber equipment send register requirement to service call session control function entity;
B, service call session control function entity send the third-party registration request according to user signing contract information to application server, carry the public subscriber identification information of described subscriber equipment in the request, the registration time length in the request is got the maximum in the registration time length of the registration time length of local this public subscriber identification correspondence of preserving and this subscriber equipment;
C, application server are got the registration time length that carries in the third-party registration request registration time length as described public subscriber identification.
2. the method for claim 1, among the described step B, if the public subscriber identification of described subscriber equipment was not registered on described service call session control function entity, then service call session control function entity with the registration time length of this subscriber equipment as the registration time length in the third-party registration request of application server transmission;
If the public subscriber identification of described subscriber equipment was once registered on described service call session control function entity, then the registration time length of service call session control function entity in the third-party registration request that application server sends got the maximum in the registration time length of the registration time length of local this public subscriber identification correspondence of preserving and this subscriber equipment.
3. the method for claim 1, among the described step B, if there be the registration time length consistent in the local record of service call session control function entity with the private user identity of this user equipment registration, then the registration time length this locality not preserved of service call session control function entity and the registration time length of this subscriber equipment do not compare, directly with the registration time length of this subscriber equipment as the registration time length in the third-party registration request of application server transmission.
4. the method for claim 1 is characterized in that, comprises also behind the described step C that application server after finishing third-party registration request processing, returns the step of the response of succeeding in registration to service call session control function entity.
5. a method that realizes the third-party registration time length negotiation in IP Multimedia System is characterized in that, comprises step:
A, subscriber equipment send register requirement to service call session control function entity;
B, service call session control function entity send the third-party registration request according to user signing contract information to application server, carry the public subscriber identification information and the private user identity information of described subscriber equipment in the request, and the registration time length of this subscriber equipment;
C, application server are checked the local record that whether has the registration time length of described public subscriber identification correspondence, if private user identity information in existence and this record and the private user identity information inconsistency in the third-party registration request, registration time length during then application server will write down and the maximum in the registration time length in the third-party registration request are as the registration time length of described public subscriber identification.
6. method as claimed in claim 5 is characterized in that, described third-party registration request is carried the sign of private user identity or sign private user identity by extended field or spreading parameter.
7. method as claimed in claim 5, it is characterized in that, among the described step c, if there is not the record of the registration time length of described public subscriber identification correspondence in application server this locality, then application server is directly with the registration time length of the registration time length in the third-party registration request as described public subscriber identification, and public subscriber identification information, private user identity information and the corresponding registration time length that carries in the third-party registration request given record.
8. method as claimed in claim 5, it is characterized in that, among the described step c, if there is the record of the registration time length of described public subscriber identification correspondence in application server this locality, and the private user identity information in should writing down is consistent with the private user identity information in the third-party registration request, and then application server is directly with the registration time length of the registration time length in the third-party registration request as described public subscriber identification.
9. method as claimed in claim 5 is characterized in that, comprises also behind the described step c that application server after finishing third-party registration request processing, returns the step of the response of succeeding in registration to service call session control function entity.
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| WO2008085010A1 (en) * | 2007-01-11 | 2008-07-17 | Samsung Electronics Co., Ltd. | Ims reregistration method and system therefor |
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| WO2008085010A1 (en) * | 2007-01-11 | 2008-07-17 | Samsung Electronics Co., Ltd. | Ims reregistration method and system therefor |
| CN101110833A (en) * | 2007-08-23 | 2008-01-23 | 中兴通讯股份有限公司 | Third-party registration processing method based on IP multimedia subsystem network |
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