CN103209165B - The method of the application server framework in IMS and forwarding session control logic - Google Patents
The method of the application server framework in IMS and forwarding session control logic Download PDFInfo
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- CN103209165B CN103209165B CN201210019955.2A CN201210019955A CN103209165B CN 103209165 B CN103209165 B CN 103209165B CN 201210019955 A CN201210019955 A CN 201210019955A CN 103209165 B CN103209165 B CN 103209165B
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Abstract
The invention provides a kind of method providing application in the ip multimedia subsystem, it comprises: definition application server framework; Session control logic is imported into described application server framework by outside via sip message, and/or session control logic be pre-stored in described application server framework with form of scripts, and/or import session control logic into described applicator framework by application programming interfaces.Meanwhile, additionally provide a kind of method for the treatment of S IP request in the application server framework of IP Multimedia System, it comprises the following steps: the SIP request receiving user terminal; Assess the initial filter standard or norm associated with described user terminal obtained from HSS; If condition meets, the session control logic relevant information associated with described user terminal obtained from described HSS is added into described SIP request; And the described SIP request that with the addition of described session control logic relevant information is sent to the application server framework specified by described initial filter standard or norm.
Description
Technical field
The present invention relates to IMS (IP Multimedia System), particularly a kind of application server framework, and at the method and apparatus of S-CSCF (Serving-Call/conversation control function) repeating SIP request, and receive in application server framework and the method and apparatus for the treatment of S IP request.
Background technology
An important feature of IMS network is the ability of the various function of its rapid deployment on sip application server.Although have clear and definite standard for SIP interface in the ims network, newly set up an application server and by rights for its distribution function still needs system designer to consider the structure be necessary.This is also that most of developer selects to carry out based on existing application server the exploitation that adds and is reluctant one of the major reason setting up an application server that starts anew.But the exploitation carrying out adding on existing application server must depend on existing application server, even and if when applied logic just revises signaling content simply, still a large amount of expenses can be produced.
For location-based route, if the function of desired realization is when each user is from diverse location access network, to each user option to show different calling lines mark (callinglineID), so, simple logic will be coupling PANI (P-Access-Network-Info) head and replace PANI head with predefined SIPURI.Above-mentioned logic seems simple, but still needs to carry out development on existing application server, or carries out development on a newly-established application server, and this often needs the longer construction cycle.
Summary of the invention
Based on above-mentioned consideration, the invention provides a kind of application server framework, it can be structured in independently on server, or is structured on existing application server, or is structured on S-CSCF.Some session control logics being applicable to all user terminals can pre-define and be stored in this application server framework, and the respective session control logic being applicable to each user terminal is then obtained from HSS when this user terminal is registered by S-CSCF and be transmitted to this application server framework via SIP registration request (REGISTERRequest) or other SIP request.Afterwards, when after the SIP request that application server framework receives corresponding to certain user terminal, it is by based on being applicable to the session control logic of all user terminals and being applicable to this SIP request of session control logical process of this user terminal thus realizing the function of application server.
Optionally, session control logic can pass through XML language (ExtensibleMarkupLanguage) definition.Certainly, it also can be defined by other any applicable language, such as, and C language, or Java language etc.
Based on this, the present invention provides a kind of method providing application in the ip multimedia subsystem in one embodiment, wherein, said method comprising the steps of: i. defines application server framework; Ii. session control logic is imported into described application server framework via SIP request by outside, and/or session control logic be pre-stored in described application server framework with form of scripts, and/or import session control logic into described applicator framework by application programming interfaces.
The present invention provides a kind of method of the S-CSCF repeating SIP request at IP Multimedia System in another embodiment, wherein, said method comprising the steps of: a. receives the SIP request of user terminal; B. the initial filter standard or norm associated with described user terminal obtained from HSS is assessed; If c. condition meets, the session control logic relevant information associated with described user terminal obtained from described HSS is added into described SIP request; D. the described SIP request that with the addition of described session control logic relevant information is sent to the application server framework specified by described initial filter standard or norm.
When described SIP request is SIPREGISTER request, after described step a, further comprising the steps of before described step b: download the files on each of customers associated with described user terminal from described HSS, wherein said files on each of customers comprises the initial filter standard or norm associated with described user terminal and the described session control logic relevant information associated with described user terminal.
The present invention provides a kind of method for the treatment of S IP request in the application server framework of IP Multimedia System In yet another embodiment, wherein, said method comprising the steps of: A. receives the SIP request from S-CSCF, and described SIP request comprises the session control logic relevant information be associated with user terminal; B. from described SIP request, extract described session control logic relevant information, and store the session control logic be associated with described subscriber equipment.
Optionally, further comprising the steps of after described step B: C. is based on SIP request described in predefined session control logic and the described session control logical process be associated with described subscriber equipment that stores.
By applying technical scheme of the present invention, the development of application service is made to become more quick and flexible.
Accompanying drawing explanation
By being described in detail to embodiment shown by reference to the accompanying drawings, above-mentioned and other features of the present invention will be more obvious, and label identical in accompanying drawing of the present invention represents same or analogous parts.In the accompanying drawings:
Fig. 1 shows the schematic diagram of application server framework according to an embodiment of the invention;
Fig. 2 shows S-CSCF, HSS according to an embodiment of the invention and the mutual network diagram of application server framework;
Fig. 3 shows session control logic is transmitted to application server framework by S-CSCF according to an embodiment of the invention method flow diagram by SIP registration request.
Embodiment
One of central scope of the present invention is: define a kind of new application server framework; And import session control logic into this application server framework via SIP request by outside, and/or session control logic be pre-stored in this application server framework with form of scripts, and/or import session control logic into described applicator framework by application programming interfaces.
Below in conjunction with Fig. 1, application server framework according to an embodiment of the invention is described.
With reference to Fig. 1, application server framework 10 provides the architecture (infrastructure) that can realize one or more functions.These one or more functions include but not limited to charging report generation, operation and maintenance interface, basic redundancy and load balance control etc.
In addition, this application server framework 10 also comprises a processing module, for extracting and storing the session control logic associated with each user terminal, and carrys out treatment S IP request based on these session control logics.This will be described in detail hereinafter.
Further, this application server framework 10 additionally provides graphic user interface (GUI), and it can be used for simulating the session control logic stored, and whether can realize correlation function to verify.In addition, this graphic user interface also can be used for realization operation, the object administered and maintained.
In addition, this application server framework 10 also comprise Session Initiation Protocol stack and Diameter stack, TCP udp protocol stack, IP stack (it can support IPv6 and IPv4).
This application server framework 10 can be structured in independently on server, or is structured on existing application server, or it is first-class to be structured in S-CSCF.
It should be noted that, the application server framework 10 shown in Fig. 1 is only exemplary and nonrestrictive, it will be understood by those skilled in the art that any can realize the present invention design application server framework all in the protection range of this patent.
As hereinbefore described in summary of the invention part, some session control logics being applicable to all user terminals can pre-define and to be stored in this application server framework 10 and to be undertaken simulating and verifying by graphic user interface, and the respective session control logic being applicable to each user terminal is then obtained when this user terminal is registered by S-CSCF and is transmitted to this application server framework 10 via SIP registration request or other SIP request from HSS.
Hereinafter with reference to Fig. 2,3 also composition graphs 1, the scheme that session control logic is transmitted to application server framework is described by SIP registration request by S-CSCF.
See Fig. 2 and Fig. 3, in step S31, S-CSCF20 receives the SIP registration request of user terminal UE.When after authentication success, in step s 32, S-CSCF20 downloads the files on each of customers (userprofile) be associated with this user terminal UE from HSS30 (home subscriber server).This files on each of customers comprises the initial filter standard or norm be associated with this user terminal UE and the session control logic relevant information be associated with this user terminal UE.In one embodiment, session control logic relevant information can be arranged in the ServiceInformation field of initial filter standard or norm.Certainly, in other embodiments, session control logic also can be present in files on each of customers independent of initial filter standard or norm.
This session control logic relevant information can be the session control logic itself be associated with this user terminal UE; Or in order to save transport overhead, session control logic relevant information also can be the index of the session control logic be associated with this user terminal UE.When session control logic relevant information is session control logic index, need to store the session control logic be associated with all user terminals in application server framework 10, for according to session control logic index search to corresponding session control logic.
After S-CSCF20 to have downloaded the files on each of customers be associated with user terminal UE from HSS30, in step S33, the initial filter standard or norm be associated with this user terminal UE that S-CSCF20 comprises files on each of customers has been assessed.If this SIP registration request mates with initial filter standard or norm, then in step S34, the session control logic relevant information be associated with this user terminal UE is added in SIP registration request by S-CSCF20, and sends third-party registration request to the application server framework 10 specified by initial filter standard or norm.
Then, in step s 35, application server framework 10 receives the SIP registration request from S-CSCF20.Then, in step S36, application server framework 10 extracts the session control logic relevant information be associated with this user terminal UE from the SIP registration request received, and stores the session control logic be associated with this user terminal UE.Particularly, when session control logic relevant information is the session control logic itself be associated with user terminal UE, so application server framework 10 is directly extracted the session control logic that is associated with user terminal UE and is stored from the SIP registration request received; When session control logic relevant information is the index of the session control logic be associated with user terminal UE, after application server framework 10 is extracted the index of the session control logic be associated with user terminal UE from the SIP registration request received, the session control logic be associated with user terminal 10 according to this index search also stores.
Optionally, after application server framework 10 is extracted the session control logic be associated with this user terminal UE, can process this SIP registration request based on the session control logic being applicable to all user terminals stored and the session control logic be associated with this user terminal UE extracted.
Afterwards, when application server framework 10 receives other SIP request corresponding to this user terminal UE, such as, after INVITE request, can process this SIP request based on the session control logic being applicable to all user terminals stored and the session control logic being applicable to this user terminal UE.Certainly, if do not store the session control logic being applicable to all user terminals in application server framework 10, so, application server framework 10 will only process this SIP request based on the session control logic being applicable to this user terminal UE stored.
In other embodiments, the session control logic relevant information associated with user terminal UE also can be forwarded to application server framework 10 by other SIP request.Particularly, which kind of SIP request can be defined by initial filter standard or norm and session control logic relevant information is transmitted to application server framework.
For S-CSCF20 by SIPINVITE request forward session control logic relevant information, after S-CSCF20 receives the SIPINVITE request of user terminal UE, first it assess initial filter standard or norm, and (this initial filter standard or norm is when user terminal UE registers, S-CSCF20 downloads from HSS30 and to store), if this SIPINVITE request is mated with initial filter standard or norm, then by the session control logic relevant information be associated with this user terminal UE, (this session control logic relevant information is when user terminal UE registers to S-CSCF20, S-CSCF20 downloads from HSS30 and stores) add in SIPINVITE request, and forward this SIPINVITE to the application server framework 10 specified by initial filter standard or norm and ask.
Session control logic can be defined by XML language in the present invention, or any other language be applicable to defines.
Such as, a kind of new XML language can be defined, be called SIMXL (ServiceInformationXML), wherein can define some XML elements, as follows:
● framework type <Type> (such as, sip agent, or back-to-back user agent)
● SIP method <Method>
● SIP direction <Direction>
● the action <Action> (such as, refusal calling, call forwarding etc.) taked
● SIP head field <Header>
● SIP content <Content>
● media action <Media> (for back-to-back user agent)
Correspondingly, local function call can as given a definition:
● stringmethod (): return SIP method
● stringdirection (): return messages direction
● nullrespond (return_code): return response
● arrayheader_all (): return a field array
● booleanheader (_ header): the existence verifying certain field
● stringheader_content (_ header): the content returning a field
● arraycontent_all (): the array returning SIP content
It should be noted that, the XML element more than enumerated is only exemplary, in actual applications, other XML elements can also be comprised, such as <log>, <charging> etc., so that application server framework realizes multiple different function.
Herein again for location-based routing function, suppose need in P-Access-Network-Info dsl station location marker for " 1234 " time, make caller number into+862112345678, so, a kind of SIXML language can be defined as follows:
In another aspect of this invention, additionally provide a kind of device of the S-CSCF repeating SIP request at IP Multimedia System, wherein, described device comprises:
First receiving device, for receiving the SIP request of user terminal;
Apparatus for evaluating, for assessment of the initial filter standard or norm associated with described user terminal obtained from HSS;
Adding set, if met for condition, is added into described SIP request by the session control logic relevant information associated with described user terminal obtained from described HSS;
Dispensing device, for being sent to the application server framework specified by described initial filter standard or norm by the described SIP request that with the addition of described session control logic relevant information.
Optionally, when described SIP request is SIPREGISTER request, described device also comprises:
Second receiving system, for downloading the files on each of customers associated with described user terminal from described HSS, wherein said files on each of customers comprises the initial filter standard or norm associated with described user terminal and the described session control logic relevant information associated with described user terminal.
Optionally, described session control logic relevant information is arranged in the ServiceInformation field of described initial filter standard or norm.
Described session control logic relevant information can be the session control logic itself associated with described user terminal, or can be the index of the session control logic associated with described user terminal.
Optionally, described session control logic is defined by XML language.
In addition, additionally provide a kind of device for the treatment of S IP request in the application server framework of IP Multimedia System, wherein, described device comprises:
3rd receiving system, for receiving the SIP request from S-CSCF, described SIP request comprises the session control logic relevant information be associated with user terminal;
Extraction element, for extracting described session control logic relevant information from described SIP request, and stores the session control logic be associated with described subscriber equipment.
Optionally, described device also comprises:
Processing unit, for based on SIP request described in predefined session control logic and the described session control logical process be associated with described subscriber equipment that stores.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, any Reference numeral in claim should be considered as the claim involved by limiting.In addition, significantly, " comprising " one word do not get rid of other elements or step, " one " word before element is not got rid of and is comprised " multiple " this element.Multiple elements of stating in claim to a product also can be realized by software or hardware by an element.First, second word such as grade is used for representing title, and does not represent any specific order.
Claims (12)
1., in a method for the S-CSCF repeating SIP request of IP Multimedia System, wherein, said method comprising the steps of:
A. receive the SIP request of user terminal;
B. the initial filter standard or norm associated with described user terminal obtained from HSS is assessed;
If c. condition meets, the session control logic relevant information associated with described user terminal obtained from described HSS is added into described SIP request;
D. the described SIP request that with the addition of described session control logic relevant information is sent to the application server framework specified by described initial filter standard or norm.
2. method according to claim 1, is characterized in that, when described SIP request is SIPREGISTER request, after described step a, further comprising the steps of before described step b:
-files on each of customers associated with described user terminal is downloaded from described HSS, wherein said files on each of customers comprises the initial filter standard or norm associated with described user terminal and the described session control logic relevant information associated with described user terminal.
3. method according to claim 2, is characterized in that, described session control logic relevant information is arranged in the ServiceInformation field of described initial filter standard or norm.
4. method according to claim 1, is characterized in that, described session control logic relevant information is the session control logic itself associated with described user terminal, or the index of the session control logic associated with described user terminal.
5. method according to claim 4, is characterized in that, described session control logic is defined by XML language.
6. a method for treatment S IP request in the application server framework of IP Multimedia System, wherein, said method comprising the steps of:
A. receive the SIP request from S-CSCF, described SIP request comprises the session control logic relevant information be associated with user terminal;
B. from described SIP request, extract described session control logic relevant information, and store the session control logic be associated with described user terminal;
C. based on SIP request described in the predefined session control logic being applicable to all user terminals and the described session control logical process be associated with described user terminal stored.
7. method according to claim 6, is characterized in that, described control logic relevant information is the session control logic itself associated with described user terminal, or the index of the session control logic associated with described user terminal.
8. method according to claim 7, is characterized in that, when described control logic relevant information is the index of the session control logic associated with described user terminal, described step B also comprises:
-based on extracted described session control logic relevant information, obtain and store the described session control logic be associated with described user terminal.
9., at a device for the S-CSCF repeating SIP request of IP Multimedia System, wherein, described device comprises:
First receiving device, for receiving the SIP request of user terminal;
Apparatus for evaluating, for assessment of the initial filter standard or norm associated with described user terminal obtained from HSS;
Adding set, if met for condition, is added into described SIP request by the session control logic relevant information associated with described user terminal obtained from described HSS;
Dispensing device, for being sent to the application server framework specified by described initial filter standard or norm by the described SIP request that with the addition of described session control logic relevant information.
10. device according to claim 9, is characterized in that, when described SIP request is SIPREGISTER request, described device also comprises:
Second receiving system, for downloading the files on each of customers associated with described user terminal from described HSS, wherein said files on each of customers comprises the initial filter standard or norm associated with described user terminal and the described session control logic relevant information associated with described user terminal.
11. devices according to claim 9, is characterized in that, described session control logic relevant information is arranged in the ServiceInformation field of described initial filter standard or norm.
The device of 12. 1 kinds for the treatment of S IP requests in the application server framework of IP Multimedia System, wherein, described device comprises:
3rd receiving system, for receiving the SIP request from S-CSCF, described SIP request comprises the session control logic relevant information be associated with user terminal;
Extraction element, for extracting described session control logic relevant information from described SIP request, and stores the session control logic be associated with described user terminal;
Processing unit, for based on SIP request described in the predefined session control logic being applicable to all user terminals and the described session control logical process be associated with described user terminal stored.
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