CN101163272A - Service triggering method based on application server packet for IMS network - Google Patents
Service triggering method based on application server packet for IMS network Download PDFInfo
- Publication number
- CN101163272A CN101163272A CNA2007101773632A CN200710177363A CN101163272A CN 101163272 A CN101163272 A CN 101163272A CN A2007101773632 A CNA2007101773632 A CN A2007101773632A CN 200710177363 A CN200710177363 A CN 200710177363A CN 101163272 A CN101163272 A CN 101163272A
- Authority
- CN
- China
- Prior art keywords
- sip
- trigger
- message
- rule
- application server
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to a service triggering method which is used for IMS network and is based on an applied server packet. The operation steps are as follows: the first step that a new SIP joint is defined according to the international communication standard. Trigger-Rule is used to realize and support various related functions of the follow-up filtration criterion sFC; the second step is to packet the applied servers according to set rules, when the packet of the applied servers is finished, S-CSCF controls the applied servers through the joint field of routing information, and every applied server group is on the occasion of being triggered to be called or not being triggered to be called when performing business; the third step is that S-CSCF performs a service triggering method which is based on the applied server packet through making use of the SIP joint and Trigger-Rule and basing on sFC. Based on the follow-up filtration criterion sFC, the method is realized. The signaling traffic of S-CSCF and AS is effectively lowered. The throughput of the whole system is increased. At the same time, the conversation establishment delay is obviously reduced, and the service quality of the IMS network is improved.
Description
Technical field
The present invention relates to a kind of service trigger method of the IMS of being used for network, belong to communication technical field based on server packet.
Background technology
IP Multimedia System IMS (IP Multimedia Subsystem) is the new core network domain that an all-IP framework of 3GPP (3rd Generation Partnership Project) proposition is organized in third generation partner plan.The not same point of the professional presentation mode of the professional presentation mode of IMS and traditional public switch telephone network PSTN and Public Land Mobile Nerwork PLMN circuit domain is: in the IMS network, key-course separates fully with operation layer, it is professional that key-course does not provide, it only provides the function such as triggering, route, charging of operation layer necessity, and business is provided by operation layer fully.In the IMS network, provide professional execution by home network, promptly when the user roams, finish professional control by the serving CSCF (S-CSCF) of its home network, S-CSCF finishes professional triggering according to filter criteria (FilterCriteria) information that is configured among the home subscriber server HSS (Home Subscriber Server), and business datum (comprising filter criteria) is downloaded among the S-CSCF at user's registration phase or when non-registered users is initiated or talked about.
The appearing as of IMS carried out multimedia service in communication network provide strong support, its applications trigger framework ATA (Application Triggering Architecture) has strengthened flexibility and extensibility that multimedia service is provided, for the terminal use provides abundant multimedia service and combinations of services, meet the trend of value-added telecom services to service personalization, the development of service differentiation.
Referring to Fig. 1, applications trigger framework ATA mainly forms framework and is made up of service S-CSCF, home subscriber server HSS and the application server AS (Application Server) of home network, wherein S-CSCF is the core component of ATA, finishes professional triggering by it.HSS is an integrated database, is used to store user's configuration information.AS finishes professional execution and provides.When a plurality of AS appear in the same session, each AS not perception mutually, professional mutual control is finished by service capacity interactive managing device SCIM (ServiceCapability Interaction Manager).
Be expressed as initial filter standard or norm iFC (initialFilter Criteria) with professional relevant user's configure dedicated data among the IMS.Each filter criteria iFC comprises: professional trigger point TP (Trigger Point), the sign of AS, the information such as priority of this initial filter standard or norm.
Wherein, trigger point TP is with determining whether contact application server, and it includes one or more service point trigger example SPT (Service Point Trigger).
Filter criteria is stored among the HSS as the part of user's configuration data, and when the user registers, or when receiving one of non-registered users initial request that stops request or begin most, filter criteria is downloaded to S-CSCF.Filter criteria has been represented the order configuration data of a kind of user to service/application, it is a kind of static data, by this static data, S-CSCF can carry out route to sip message according to the SIP head of sip message or the content of sip message body, and this routing policy can't be revised during session is set up.
Up to now, 3GPP has defined two kinds of filter criteria: initial filter standard or norm iFC and subsequent filter criteria sFC (subsequent Filter Criteria), S-CSCF carries out business according to iFC to conversation initial request message (for example ' INVITE ') to be triggered, and according to sFC follow-up sip message is carried out business and triggers.But 3GPP has only provided the specific implementation of the former iFC so far, does not provide the specific implementation of latter sFC.So can only carry out route to subsequent message according to the basic routing mechanism (promptly by Via head, Record-Route/Route head) of sip message at present, so just increased route redundancy greatly, cause S-CSCF and AS all will handle too much unnecessary messages.
Referring to Fig. 2, introduce triggering method below, so that can further specify the shortcoming of above-mentioned prior art based on the existing business of iFC.
When the user registers, or when receiving one of non-registered users initial request that stops request or begin most, initial filter standard or norm is downloaded to S-CSCF.When receiving initial call request (' INVITE ' message), S-CSCF carries out following operation:
1. carry out the assessment of filter criteria, set up the tabulation of user filtering criterion according to priority.
2. analysis request message is found out service point trigger example.
3. check in the initial filter standard or norm of the next limit priority of this user the trigger point whether with this request in service point trigger example be complementary.
(A) if this request and initial filter standard or norm do not match, the then operation of execution in step 4.
(b) if should request mate with initial filter standard or norm, the then S-CSCF mark side SIP session of making a start, and request is transmitted to corresponding AS, after this AS controls ISC (IP multimediaService Control) interface and receives this message request by IP multimedia service, carry out service logic, modify request messages is transmitted back S-CSCF to request message by ISC interface.
4. the operation of repeated execution of steps 2,3, to the last a filter criteria is finished by coupling.
5. if no longer including initial filter standard or norm is suitable for, then S-CSCF transmits this message based on the SIP routing mechanism.
If the AS that is got in touch is response not, then S-CSCF defers to the default process process relevant with initial filter standard or norm, promptly based on the information in the filter criteria, perhaps stops session, perhaps allows session continue.Do not close the indication how contact AS failure back S-CSCF should operate if initial filter standard or norm includes, the default behavior of S-CSCF is to allow call out continue.
Study among the above-mentioned IMS call setup flow process based on ATA, can find that there is following defective in prior art: the existing setup delay that has increased end-to-end session based on the service trigger method of initial filter standard or norm iFC greatly, reduce the throughput of system, reduced the service quality of IMS network.So at present the applications trigger framework ATA of IMS is to be that cost obtains flexibility that business provides and extensibility with the sacrificial system performance, this disadvantage has caused those skilled in the art fervent concern, and everybody is seeking the approach that solves.
Summary of the invention
In view of this, the service trigger method that the purpose of this invention is to provide a kind of IMS of being used for network based on server packet, this method is based on the sFC realization, can realize effectively reducing the signaling traffic of S-CSCF and application server AS, increase the throughput of whole system, significantly reduce session establishment time delay simultaneously, improve the target of the service quality of IMS network.
In order to achieve the above object, the invention provides a kind of service trigger method based on server packet of the IMS of being used for network, it is characterized in that: this method comprises following operating procedure:
(1) follow new SIP head of international communication standard definition, the name of this SIP head is: Trigger-Rule is used to realize supporting the various correlation functions of subsequent filter criteria sFC;
(2) divide into groups according to setting regular application server, after application server is finished grouping, service S-CSCF by home network controls by a field application server group of routing iinformation, make that each application servers group is in the state that is triggered and calls or be not triggered and call respectively when carrying out business;
(3) utilize this SIP Trigger-Rule, and based on follow-up filtering rule sFC, S-CSCF carries out a kind of service trigger method based on server packet.
A described SIP Trigger-Rule is made up of the identical parameter of one or more forms, each parameter is represented a subsequent filter criteria sFC, and each parameter comprises three fields: the name field as-name of the URL(uniform resource locator) SIP URL in the session initiation protocol of application server AS, use sip request message name or the sip response code field applicable-message of subsequent filter criteria sFC, and S-CSCF is based on the action field action of subsequent filter criteria sFC.
Described field as-nam comprises: the routing iinformation of AS, be used for session scenario information to the initial/terminal situation of AS indication current sessions, and the service key information of indicating the current service identification that will carry out to AS; Described field applicable-message is used to represent to use sip request message name or the sip response sign indicating number of subsequent filter criteria sFC; Described field action is provided with two values: ' Trigger ' and ' Not Trigger ', the former is a default value, the sip message that is used for being illustrated in the indication of applicable-message field should be gone by the AS that S-CSCF is triggered to the indication of as-name field; The latter represents that S-CSCF should not be triggered to the sip message of applicable-message field indication the AS of as-name field indication, and should be this forwards to the Next Hop Server node.
The Backus normal form (BNF) BNF of a described SIP Trigger-Rule is defined as follows:
rule:＝″Trigger-Rule″HCOLON?rule-parm*(COMMA?rule-parm)
rule-parm:＝as-name?SEMI?applicable-message?SEMI?action
as-name:＝name-addr
applicable-message:＝Method/Status-Code
action:＝token
Defined declaration to above-mentioned Backus normal form (BNF) BNF is:
The first row rule is used to define the title and the parameter of this SIP head, and its name is called: Trigger-Rule, form by one or more parameters, and use CSV between each parameter, each parameter is represented a subsequent filter criteria sFC; Wherein, english abbreviation HCOLON represents colon ": ", and COMMA represents comma, ";
The second row rule-parm, the concrete form that is used to define each parameter of this SIP Trigger-Rule comprises as-name, applicable-message, three fields of action, uses semicolon separated between each field; Wherein, english abbreviation SEMI represent branch "; ";
The third line as-name is used to define the content of first field as-name of this SIP Trigger-Rule parameter, and promptly it is the SIP URL name field of AS, and wherein as-name represents a word address;
Fourth line applicable-message, be used to define the content of second field applicable-message of this SIP Trigger-Rule parameter, promptly this field is to use the sip request message name or the sip response code field of filter criteria, wherein Method/Status-Code method for expressing/conditional code;
Fifth line action is used to define the content of the 3rd field action of this SIP Trigger-Rule parameter, and promptly this field is the action field of S-CSCF based on this criterion, and wherein token represents symbol.
The setting rule that described application server is divided into groups has three:
(A),,, professional application server divides into groups to being provided according to the grouping situation of business tine according to the business tine that application server provided;
(B) divide into groups according to the priority application server of application server, promptly the application server of limit priority is divided into one group, the application server of time high priority is divided into one group, sequentially the application server of low priority more is divided into one group one by one again;
(C) group result of application server will be convenient to mutual between each application server.
In the described step (2), when an application servers group be triggered call after, have at least an application server to be triggered in this group.
In the service trigger method based on server packet of described step (3), when receiving initial call request INVITE, S-CSCF carries out following operating procedure:
(311) carry out the assessment of initial filter standard or norm, set up the initial filter standard or norm tabulation of this initial call request according to priority;
(312) resolve this request message, find out all service point trigger example SPT;
(313), determine the application servers group that will trigger, and determine the priority of application servers group according to the rule of classification of application server according to the match condition of Service Point Trigger example SPT in trigger point and this request message;
(314) based on the application servers group of next limit priority, S-CSCF carries out following operation in proper order:
The side SIP session of making a start of A, mark according to the configuration in the initial filter standard or norm, is added the SIP URL name of the application server in the application servers group among the route Route of sip message;
B, transmit this sip message to the application corresponding server by ISC interface, application server is carried out service logic after receiving this message, revise this sip message as required, and the SIP URL name of its application server is added in the as-name field of subsequent filter criteria sFC of tip position of this sip message Trigger-Rule head, at last, route Route indication according to sip message is dealt into next application server to this sip message; After last application server of an application servers group is finished processing to this sip message, this sip message is beamed back S-CSCF;
C, when S-CSCF once more when application server is received sip request message, execution in step (315) operation;
(315) operation of repeated execution of steps (312), (313), (314) all is triggered up to all application servers group and finishes;
(316) based on the SIP routing mechanism this sip message is transmitted.
In the service trigger method based on server packet of described step (3), when receiving initial call request responding message or subsequent request message, S-CSCF carries out following operating procedure:
(321) according to fixed application servers group before this, check, determine the triggering situation of the application server in this application servers group: check the value SIP URL of the as-name field among the subsequent filter criteria sFC of tip position of Trigger-Rule head of this sip message and the SIP URL match condition via a Via or a route Route top correspondence position of this sip message;
If both do not match or the Trigger-Rule head does not exist, then execution in step (322) operation;
If both couplings, then S-CSCF will select to carry out following operation:
If the action field among the subsequent filter criteria sFC of the relevant position of this sip message Trigger-Rule head is ' Trigger ', then delete this subsequent filter criteria sFC, execution in step (322) operation;
If the action field among the subsequent filter criteria sFC of the tip position of this sip message Trigger-Rule head is ' Not Trigger ', then delete this subsequent filter criteria sFC, and deletion is via corresponding SIP URL among a Via or the route Route, execution in step (322) operation;
(322) based on the SIP routing mechanism this sip message is transmitted;
(323) when the response message of receiving initial request or subsequent request message, AS carries out following operation: carry out service logic, add or revise the Trigger-Rule head of sip message, based on the SIP routing mechanism this sip message is transmitted;
(324) operation of repeated execution of steps (321)～(323) stops up to whole session.
The present invention is a kind of service trigger method based on server packet of the IMS of being used for network, and its innovative characteristics is: this method has realized the use of subsequent filter criteria sFC by a kind of new SIP head of definition.This subsequent filter criteria sFC and existing initial filter standard or norm iFC are used, and have strengthened the professional flexibility that triggers of ATA greatly.In addition, the present invention also proposes a kind of new service trigger method based on server packet based on sFC, by theory analysis and simulation result, the service trigger method that discovery the present invention is based on server packet can reduce the signaling traffic of S-CSCF and AS effectively, increase the throughput of whole system, simultaneously significantly reduce session establishment time delay, improved the service quality of IMS network.
Description of drawings
Fig. 1 is that IMS applications trigger frame structure is formed schematic diagram.
Fig. 2 is based on the multi-service trigger process schematic diagram of iFC.
Fig. 3 is the flow chart based on the service trigger method of server packet that the present invention is used for the IMS network.
Fig. 4 uses the multi-service trigger process schematic diagram based on iFC and sFC of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 3, introduce three operating procedures of the rule-based dynamic service triggering method of a kind of IMS of being used for network of the present invention:
(1) follow new SIP head of RFC 3261 international communication standard definitions, the name of this SIP head is: Trigger-Rule is used to realize supporting the various correlation functions of subsequent filter criteria sFC;
(2) divide into groups according to setting regular application server, after application server is finished grouping, service S-CSCF by home network controls by a field application server group of routing iinformation, make that each application servers group is in the state that is triggered and calls or be not triggered and call respectively when carrying out business;
(3) utilize this SIP Trigger-Rule, and based on follow-up filtering rule sFC, S-CSCF carries out a kind of service trigger method based on server packet.
Specify the content of above-mentioned three operating procedures below.
In the step (1), the new SIP first place word of the present invention definition is: Trigger-Rule is used to realize supporting the target of sFC.This new SIP head is made up of the identical parameter of one or more forms as required, and each parameter is represented a subsequent filter criteria sFC.And each parameter comprises three fields: the SIP URL name field as-name of application server AS, the sip request message name of application subsequent filter criteria sFC or sip response code field applicable-message and S-CSCF are based on the action field action of subsequent filter criteria sFC.Each field specifies as follows:
(1) the SIP URL name field of field as-name:AS.This name field comprises routing iinformation and/or the session scenario information of AS; Session scenario information is used for the initial/terminal situation to AS indication current sessions, ginseng person's form as
Sip:orig@asl.homel.netThis title can also comprise service key information simultaneously, to the current service identification that will carry out of AS indication, parameter format as
Sip:vmail@ims.as.net
(2) field applicable-message: sip request message name or the sip response code field of using subsequent filter criteria sFC.As: ' 183 ', ' UPDATE '.
(3) field action:S-CSCF is based on the action field of subsequent filter criteria sFC.In the present invention, this Field Definition two values: ' Trigger ' and ' Not Trigger '.Be ' Trigger ' under the default situations, the sip message that is used for being illustrated in the indication of applicable-message field should be triggered to the AS of as-name field indication by S-CSCF.' Not Trigger ' expression S-CSCF should not be triggered to the sip message of applicable-message field indication the AS of as-name field indication, and should be this forwards to the Next Hop Server node.
Above-mentioned definition mode of the present invention is followed RFC 3261 international standards.In addition, the Backus normal form (BNF) BNF of the defined new SIP Trigger-Rule of the present invention is defined as follows:
rule:＝″Trigger-Rule″HCOLON?rule-parm*(COMMA?rule-parm)
rule-parm:＝as-name?SEMI?applicable-message?SEMI?action
as-name:＝name-addr
applicable-message:＝Method/Status-Code
action:＝token
Above-mentioned Backus normal form (BNF) BNF defined declaration is explained as follows:
The first row rule: title and its parameter of being used to define this new SIP head.Its name is called: Trigger-Rule, and (rule-parm) forms by one or more parameters, uses CSV between each parameter, and each parameter is represented a subsequent filter criteria sFC.English abbreviation HCOLON wherein represents colon ": ", and COMMA represents comma, ".
The second row rule-parm: be used to define the concrete form of each parameter of this new SIP Trigger-Rule, this each parameter of SIP head is that (as-name, applicable-message action) form, and use semicolon separated between each field by three fields; English abbreviation SEMI wherein represent branch "; ".
The third line as-name: be used to define the content of first field as-name of this new SIP Trigger-Rule parameter, promptly this field is the SIP URL name field of AS.Wherein name-addr represents the meaning of a word address.
Fourth line applicable-message: be used to define the content of second field applicable-message of this new SIP Trigger-Rule parameter, promptly this field is to use the sip request message name or the sip response code field of filter criteria.The meaning of Method/Status-Code method for expressing/conditional code wherein.
Fifth line action: be used to define the content of the 3rd field action of this new SIP Trigger-Rule parameter, promptly this field is the action field of S-CSCF based on this criterion.Wherein token represents the meaning of symbol.
Subsequent filter criteria sFC of the present invention is a kind of based on the response of initial request and the subsequent filter criteria of subsequent request, also is the subsequent filter criteria after a kind of AS is called according to initial filter standard or norm.S-CSCF is carrying out the initial request of successfully mating with iFC, and calls after the AS, if the condition of sFC is satisfied, then S-CSCF just can carry out the processing mode of describing among the follow-up filtering rule sFC.
SFC is different from the static filtering mechanism of iFC, it is not loaded among the HSS when user's ordering services, but in session foundation, session modification, session refreshing, session termination procedure, each AS is according to the service condition of oneself, the filter criteria of call state dynamic load.Just sFC is provided with and is loaded by AS, is delivered to S-CSCF by sip message, finishes the filtration of message, professional triggering by S-CSCF.
In the step (2), divide into groups according to three regular application server setting, rule of classification is as follows:
(A),,, professional application server divides into groups to being provided according to the grouping situation of business tine according to the business tine that application server provided;
(B) divide into groups according to the priority application server of application server, promptly the application server of limit priority is divided into one group, the application server of time high priority is divided into one group, sequentially the application server of low priority more is divided into one group one by one again;
(C) group result of application server will be convenient to mutual between each application server.
After server packet is finished, control by a field application server group of routing iinformation, make that each application servers group is in the state that is triggered and calls or be not triggered and call respectively when carrying out business by S-CSCF.And, when an application servers group be triggered call after, have at least an application server to be triggered in this group.
In the step (3), referring to Fig. 4, three application server AS 1, AS2, AS3 form an application servers group, and two other application server AS n-1 and ASn form Another application server group.Utilize new SIP head that the present invention defines and based on sFC, the invention provides a kind of new service trigger method based on server packet, this method is carried out two kinds of different operating procedures respectively under two kinds of different occasions.Describe it below respectively in detail.
(1) when receiving initial call request INVITE, S-CSCF carries out following operation (being illustrated in when receiving the initial call request message operating procedure that S-CSCF carries out according to initial filter standard or norm iFC among the figure with heavy line):
(311) carry out the assessment of initial filter standard or norm, set up the initial filter standard or norm tabulation of this initial call request according to priority;
(312) resolve this request message, find out all service point trigger example SPT;
(313), determine the application servers group that will trigger, and determine the priority of application servers group according to the rule of classification of application server according to the match condition of Service Point Trigger example SPT in trigger point and this request message;
(314) based on the application servers group of next limit priority, S-CSCF carries out following operation in proper order:
The side SIP session of making a start of A, mark according to the configuration in the initial filter standard or norm, is added the SIP URL name of the application server in the application servers group among the route Route of sip message;
B, transmit this sip message to the application corresponding server by ISC interface, application server is carried out service logic after receiving this message, revise this sip message as required, and the SIP URL name of its application server is added in the as-name field of subsequent filter criteria sFC of tip position of this sip message Trigger-Rule head, at last, route Route indication according to sip message is dealt into next application server to this sip message; After last application server of an application servers group is finished processing to this sip message, this sip message is beamed back S-CSCF;
C, when S-CSCF once more when application server is received sip request message, execution in step (315) operation;
(315) operation of repeated execution of steps (312), (313), (314) all is triggered up to all application servers group and finishes;
(316) based on the SIP routing mechanism this sip message is transmitted.
(2) when receiving initial call request responding message or subsequent request message, S-CSCF of the present invention carries out following operation (being represented by dotted lines when receiving initial call request responding message or subsequent request message the operating procedure that S-CSCF carries out according to subsequent filter criteria sFC among the figure):
(321) according to the fixed application servers group of step (313) before this, check, determine the triggering situation of the application server in this application servers group: check the value SIP URL of the as-name field among the subsequent filter criteria sFC of tip position of Trigger-Rule head of this sip message and the SIP URL match condition via a Via or a route Route top correspondence position of this sip message;
If both do not match or the Trigger-Rule head does not exist, then execution in step (322) operation;
If both couplings, then S-CSCF will select to carry out following operation:
If the action field among the subsequent filter criteria sFC of the relevant position of this sip message Trigger-Rule head is ' Trigger ', then delete this subsequent filter criteria sFC, execution in step (322) operation;
If the action field among the subsequent filter criteria sFC of the tip position of this sip message Trigger-Rule head is ' Not Trigger ', then delete this subsequent filter criteria sFC, and deletion is via corresponding SIP URL among a Via or the route Route, execution in step (322) operation;
(322) based on the SIP routing mechanism this sip message is transmitted;
(323) when the response message of receiving initial request or subsequent request message, AS carries out following operation: carry out service logic, add or revise the Trigger-Rule head of sip message, based on the SIP routing mechanism this sip message is transmitted;
(324) operation of repeated execution of steps (321)～(323) stops up to whole session.
Claims (8)
1. service trigger method that is used for the IMS network based on server packet, it is characterized in that: this method comprises following operating procedure:
(1) follow new SIP head of international communication standard definition, the name of this SIP head is: Trigger-Rule is used to realize supporting the various correlation functions of subsequent filter criteria sFC;
(2) divide into groups according to setting regular application server, after application server is finished grouping, service S-CSCF by home network controls by a field application server group of routing iinformation, make that each application servers group is in the state that is triggered and calls or be not triggered and call respectively when carrying out business;
(3) utilize this SIP Trigger-Rule, and based on follow-up filtering rule sFC, S-CSCF carries out a kind of service trigger method based on server packet.
2. service trigger method according to claim 1, it is characterized in that: a described SIP Trigger-Rule is made up of the identical parameter of one or more forms, each parameter is represented a subsequent filter criteria sFC, and each parameter comprises three fields: the name field as-name of the URL(uniform resource locator) SIP URL in the session initiation protocol of application server AS, use sip request message name or the sip response code field applicable-message of subsequent filter criteria sFC, and S-CSCF is based on the action field action of subsequent filter criteria sFC.
3. service trigger method according to claim 1, it is characterized in that: described field as-nam comprises: the routing iinformation of AS, be used for session scenario information to the initial/terminal situation of AS indication current sessions, and the service key information of indicating the current service identification that will carry out to AS; Described field applicable-message is used to represent to use sip request message name or the sip response sign indicating number of subsequent filter criteria sFC; Described field action is provided with two values: ' Trigger ' and ' Not Trigger ', the former is a default value, the sip message that is used for being illustrated in the indication of applicable-message field should be gone by the AS that S-CSCF is triggered to the indication of as-name field; The latter represents that S-CSCF should not be triggered to the sip message of applicable-message field indication the AS of as-name field indication, and should be this forwards to the Next Hop Server node.
4. service trigger method according to claim 1 is characterized in that: the Backus normal form (BNF) BNF of a described SIP Trigger-Rule is defined as follows:
rule:＝″Trigger-Rule″HCOLON?rule-parm*(COMMA?rule-parm)
rule-parm:＝as-name?SEMI?applicable-message?SEMI?action
as-name:＝name-addr
applicable-message:＝Method/Status-Code
action:＝token
Defined declaration to above-mentioned Backus normal form (BNF) BNF is:
The first row rule is used to define the title and the parameter of this SIP head, and its name is called: Trigger-Rule, form by one or more parameters, and use CSV between each parameter, each parameter is represented a subsequent filter criteria sFC; Wherein, english abbreviation HCOLON represents colon ": ", and COMMA represents comma, ";
The second row rule-parm, the concrete form that is used to define each parameter of this SIP Trigger-Rule comprises as-name, applicable-message, three fields of action, uses semicolon separated between each field; Wherein, english abbreviation SEMI represent branch "; ";
The third line as-name is used to define the content of first field as-name of this SIP Trigger-Rule parameter, and promptly it is the SIP URL name field of AS, and wherein as-name represents a word address;
Fourth line applicable-message, be used to define the content of second field applicable-message of this SIP Trigger-Rule parameter, promptly this field is to use the sip request message name or the sip response code field of filter criteria, wherein Method/Status-Code method for expressing/conditional code;
Fifth line action is used to define the content of the 3rd field action of this SIP Trigger-Rule parameter, and promptly this field is the action field of S-CSCF based on this criterion, and wherein token represents symbol.
5. service trigger method according to claim 1 is characterized in that: the setting rule that described application server is divided into groups has three:
(A),,, professional application server divides into groups to being provided according to the grouping situation of business tine according to the business tine that application server provided;
(B) divide into groups according to the priority application server of application server, promptly the application server of limit priority is divided into one group, the application server of time high priority is divided into one group, sequentially the application server of low priority more is divided into one group one by one again;
(C) group result of application server will be convenient to mutual between each application server.
6. service trigger method according to claim 1 is characterized in that: in the described step (2), when an application servers group be triggered call after, have at least an application server to be triggered in this group.
7. service trigger method according to claim 1 is characterized in that: in the service trigger method based on server packet of described step (3), when receiving initial call request INVITE, S-CSCF carries out following operating procedure:
(311) carry out the assessment of initial filter standard or norm, set up the initial filter standard or norm tabulation of this initial call request according to priority;
(312) resolve this request message, find out all service point trigger example SPT;
(313), determine the application servers group that will trigger, and determine the priority of application servers group according to the rule of classification of application server according to the match condition of Service Point Trigger example SPT in trigger point and this request message;
(314) based on the application servers group of next limit priority, S-CSCF carries out following operation in proper order:
The side SIP session of making a start of A, mark according to the configuration in the initial filter standard or norm, is added the SIP URL name of the application server in the application servers group among the route Route of sip message;
B, transmit this sip message to the application corresponding server by ISC interface, application server is carried out service logic after receiving this message, revise this sip message as required, and the SIP URL name of its application server is added in the as-name field of subsequent filter criteria sFC of tip position of this sip message Trigger-Rule head, at last, route Route indication according to sip message is dealt into next application server to this sip message; After last application server of an application servers group is finished processing to this sip message, this sip message is beamed back S-CSCF;
C, when S-CSCF once more when application server is received sip request message, execution in step (315) operation;
(315) operation of repeated execution of steps (312), (313), (314) all is triggered up to all application servers group and finishes;
(316) based on the SIP routing mechanism this sip message is transmitted.
8. service trigger method according to claim 1, it is characterized in that: in the service trigger method based on server packet of described step (3), when receiving initial call request responding message or subsequent request message, S-CSCF carries out following operating procedure:
(321) according to fixed application servers group before this, check, determine the triggering situation of the application server in this application servers group: check the value SIP URL of the as-name field among the subsequent filter criteria sFC of tip position of Trigger-Rule head of this sip message and the SIP URL match condition via a Via or a route Route top correspondence position of this sip message;
If both do not match or the Trigger-Rule head does not exist, then execution in step (322) operation;
If both couplings, then S-CSCF will select to carry out following operation:
If the action field among the subsequent filter criteria sFC of the relevant position of this sip message Trigger-Rule head is ' Trigger ', then delete this subsequent filter criteria sFC, execution in step (322) operation;
If the action field among the subsequent filter criteria sFC of the tip position of this sip message Trigger-Rule head is ' Not Trigger ', then delete this subsequent filter criteria sFC, and deletion is via corresponding SIP URL among a Via or the route Route, execution in step (322) operation;
(322) based on the SIP routing mechanism this sip message is transmitted;
(323) when the response message of receiving initial request or subsequent request message, AS carries out following operation: carry out service logic, add or revise the Trigger-Rule head of sip message, based on the SIP routing mechanism this sip message is transmitted;
(324) operation of repeated execution of steps (321)～(323) stops up to whole session.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101773632A CN101163272B (en) | 2007-11-14 | 2007-11-14 | Service triggering method based on application server packet for IMS network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101773632A CN101163272B (en) | 2007-11-14 | 2007-11-14 | Service triggering method based on application server packet for IMS network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101163272A true CN101163272A (en) | 2008-04-16 |
| CN101163272B CN101163272B (en) | 2010-08-11 |
Family
ID=39298079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101773632A Expired - Fee Related CN101163272B (en) | 2007-11-14 | 2007-11-14 | Service triggering method based on application server packet for IMS network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101163272B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260272A (en) * | 2013-05-27 | 2013-08-21 | 阳光凯讯(北京)科技有限公司 | Service logic triggering model, triggering data and triggering method |
| CN103812839A (en) * | 2012-11-14 | 2014-05-21 | 阳光凯讯(北京)科技有限公司 | Multi-service triggering method based on extended initial filter criteria in IMS network |
| CN113067715A (en) * | 2020-01-02 | 2021-07-02 | 中国移动通信有限公司研究院 | Service triggering method and related equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050190772A1 (en) * | 2004-02-26 | 2005-09-01 | Shang-Chih Tsai | Method of triggering application service using filter criteria and IP multimedia subsystem using the same |
| US20050213606A1 (en) * | 2004-03-25 | 2005-09-29 | Jiun-Yao Huang | Method of triggering application service using response filter criteria and IP multimedia subsystem using the same |
| CN100502404C (en) * | 2006-02-10 | 2009-06-17 | 华为技术有限公司 | IMS service triggering method and IMS network |
-
2007
- 2007-11-14 CN CN2007101773632A patent/CN101163272B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103812839A (en) * | 2012-11-14 | 2014-05-21 | 阳光凯讯(北京)科技有限公司 | Multi-service triggering method based on extended initial filter criteria in IMS network |
| CN103260272A (en) * | 2013-05-27 | 2013-08-21 | 阳光凯讯(北京)科技有限公司 | Service logic triggering model, triggering data and triggering method |
| CN113067715A (en) * | 2020-01-02 | 2021-07-02 | 中国移动通信有限公司研究院 | Service triggering method and related equipment |
| CN113067715B (en) * | 2020-01-02 | 2023-01-13 | 中国移动通信有限公司研究院 | Service triggering method and related equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101163272B (en) | 2010-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101159914B (en) | Regulation based dynamic service triggering method for IMS network | |
| CN102857891B (en) | Domain selection method and domain selection system for called party and HSS(home subscriber server) in domain selection system | |
| CN101094442B (en) | Method for grappling final call in circuit switching domain | |
| CN100596076C (en) | User equipment registration, activation system, method and device in personal management | |
| CN102035798B (en) | Service processing method, system and device for realizing disaster tolerance | |
| CN102215238B (en) | Service processing method and system fused with video conference and user terminal | |
| US9560515B2 (en) | System and method for supplementary services setting synchronization | |
| CN101563903B (en) | Service adaptation in an ip multimedia subsystem network | |
| CN109639717A (en) | The number of taking turns the communication means of net, Calling Side/callee side Service control point server | |
| CN101142833A (en) | Device for controlling a cs domain subscriber terminal access to an IMS communication network services | |
| CN109891938A (en) | Network routing based on terminal medium path | |
| EP2247031A1 (en) | Implementation method, system and device for ims monitoring | |
| JP5851986B2 (en) | Method and apparatus for use in an IP multimedia subsystem | |
| US8724777B2 (en) | Method, device and system for implementing emergency call override service | |
| CN104125221A (en) | IMS (IP (Internet Protocol) multimedia subsystem) terminal equipment multiple soft-terminal resource sharing and application collaborative device and method | |
| CN101511072A (en) | Method for implementing enhancement type E-number communication business in SIP or IMS network | |
| WO2012113331A1 (en) | Service triggering method and system in ims network, computer program and storage medium | |
| EP2068517B1 (en) | Method and system for implementing simulative service, method for implementing interworking, and unit for controlling interworking | |
| CN101163272B (en) | Service triggering method based on application server packet for IMS network | |
| CN103595691A (en) | A dynamic service trigger method based on a rule in an IMS network | |
| JP2008541597A (en) | Terminal, emergency center, network, network element, system and method for establishing an emergency session using terminal identity | |
| CN101212386A (en) | System for interworking between circuit switching network and IP multimedia subsystem | |
| CN105959274B (en) | Communication method and network element used in communication method | |
| CN101771708A (en) | Multi-network fusion call processing method, as well as internal call processing method and device of IMS (IP Multimedia Subsystem) domain | |
| CN100401730C (en) | Method for realizing user's self difined recording by media gate control protocol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20131114 |