CN110035073A - A kind of IMS service trigger method - Google Patents

A kind of IMS service trigger method Download PDF

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Publication number
CN110035073A
CN110035073A CN201910247058.9A CN201910247058A CN110035073A CN 110035073 A CN110035073 A CN 110035073A CN 201910247058 A CN201910247058 A CN 201910247058A CN 110035073 A CN110035073 A CN 110035073A
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Prior art keywords
business
trigger
service
service point
triggering
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王龙龙
敦科翔
马文学
刘梦阳
曹贝贝
戎烁
李付民
孙玮
李海波
祁光波
何晓焕
张一村
李亚平
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HEBEI FAREAST COMMUNICATION SYSTEM ENGINEERING Co Ltd
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HEBEI FAREAST COMMUNICATION SYSTEM ENGINEERING Co Ltd
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Priority to CN201910247058.9A priority Critical patent/CN110035073A/en
Publication of CN110035073A publication Critical patent/CN110035073A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06Management of faults, events, alarms or notifications
    • H04L41/0604Management of faults, events, alarms or notifications using filtering, e.g. reduction of information by using priority, element types, position or time
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10Architectures or entities
    • H04L65/1016IP multimedia subsystem [IMS]

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer And Data Communications (AREA)

Abstract

The invention discloses a kind of IMS service trigger methods, belong to IMS network technical field.This method is applied to IMS network, and user carries out the trigger action of business using the S-CSCF of home network, analyzes and determines that triggering corresponding service application service device carries out business logic processing by initial filter standard or norm.This control mode is kept completely separate IMS control layer with operation layer, is the service trigger method of efficient, quick, stable IMS a kind of.

Description

A kind of IMS service trigger method
Technical field
The invention belongs to IMS network technical fields, particularly relate to a kind of IMS service trigger method.
Background technique
In IMS(IP Multimedia Subsystem, IP multimedia subsystem) in network, user uses home network S-CSCF carry out the trigger action of business, analyzed and determined by initial filter standard or norm trigger corresponding service application service device into Row business logic processing.This control mode realizes being kept completely separate for IMS control layer and operation layer.
User configuration exclusive data relevant with business is represented as initial filter standard or norm iFC in IMS (initialFilter Criteria).Each filter criteria iFC includes: Service Point Trigger TP(Trigger Point), AS The information such as mark, the priority of the initial filter standard or norm of (Application Server, application server).Wherein trigger point For TP for deciding whether contact application server, it includes one or more service point trigger example SPT(Service Point Trigger).
So far, 3GPP defines initial filter standard or norm iFC and subsequent filter criteria sFC(subsequent Filter Criteria), S-CSCF talks with initial request message (such as " INVITE ") progress business triggering according to iFC, according to sFC to rear Continuous sip message carries out business triggering.But 3GPP only gives the business framework of the former iFC so far, without providing IMS business The specific method of triggering.
Summary of the invention
In view of this, the present invention proposes a kind of IMS service trigger method, can efficiently, quickly and stably realize IMS Business triggering.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of IMS service trigger method comprising following steps:
(1) initial filter standard or norm chained list is created in its memory after the starting of IMS system, be used for storing initial filter criteria iFC Context information;
(2) IMS user initiates session to IMS system and requests to arrive S-CSCF network element, and S-CSCF network element is first in local memory creation Beginning call context;In call context, the information used when triggering business includes service data information and user's registration letter Breath;Wherein, service data information includes the index value for executing iFC index and the mark for identifying whether triggering business Position;User's registration information includes role, user's registration type and iFC contextual information, wherein role table Show the present S-CSCF network element of calling;
(3) S-CSCF network element carries out IMS business triggering processing according to call treatment logic, checks whether there is matched iFC;
(4) S-CSCF network element creates initial filter standard or norm contextual information, and the initial filter standard or norm contextual information includes industry Business triggering information and service application service device information;Wherein, Service Trigger Information includes business trigger condition type and business touching Send out chained list, business trigger condition type includes " condition with " and " condition or ";Service application service device information includes service application Server name and Dialog processing mechanism, Dialog processing mechanism include session continuation and session termination both of which;Session continues Mode expression can continue session after triggering service fail according to routing policy, and session termination mode is indicated in business It no longer conversates after triggering failure, directly return failure response;
(5) S-CSCF network element creates service point trigger SPT, and service point trigger SPT includes Service Point Trigger element, business touching Sending out point element includes method and example session;
(6) it is filled according to the context that the user's registration information in step (2) call context carries out service point trigger SPT, Wherein, method is filled with call request, indicates that S-CSCF network element is carrying out call treatment, example session is filled with Calling Side meeting Words;
(7) length of initial filter standard or norm chained list is obtained, which indicates that corresponding user needs to trigger the iFC sum of business;
(8) rope is given for executing the index value of iFC index in the service data information in obtaining step (2) call context Draw value and assign parameter count, the initial value of parameter count is 0, every judgement for executing a Service Point Trigger, and count value is automatic Add 1, but the maximum value of parameter count is not more than the length of initial filter standard or norm chained list;
(9) judge whether the iFC sum of triggering business is equal to 0, if so, indicating the iFC for not needing to trigger business, at this time eventually The only execution of Service Point Trigger, and will be used to identify that the marker for whether triggering business is set as not triggering business;If not, then it represents that The iFC of triggering business in need continues the execution of Service Point Trigger at this time;
(10) value of the parameter count in judgment step (8), if the value of parameter count is equal to the iFC sum of triggering business, It then indicates that all Service Point Trigger have been finished, will be used to identify that the marker for whether triggering business is set as not touching at this time Sending service;
(11) it if the iFC sum of triggering business is not equal to 0 in step (9), loops to determine, loops to determine into Service Point Trigger Condition be parameter count be less than triggering business iFC sum;
(12) according to the condition that loops to determine of step (11), iFC contextual information in obtaining step (2), and pass it to Initial filter standard or norm contextual information in step (4);
(13) after obtaining the success of initial filter standard or norm contextual information, the logical process of iFC business triggering is carried out;Concrete mode For the length Length of the business triggering chained list of Service Trigger Information first in acquisition initial filter standard or norm contextual information should Length indicates that the user needs to trigger the sum of service point trigger SPT;Then it obtains in initial filter standard or norm contextual information Trigger the message content of the business trigger chained list of information;Finally obtain business triggering letter in initial filter standard or norm contextual information The business trigger condition type of breath;
(14) the message content SptCtx that the business trigger chained list of information is triggered in initial filter standard or norm contextual information is obtained, Wherein message content SptCtx includes service point trigger SPT type and Service Point Trigger element, service point trigger SPT type Including call request type and call request direction, Service Point Trigger element includes method and example session;Into looping to determine, Circulation executes the step of (15)~(17) every time, and parameter index is arranged in cyclic process, and the initial value of index is 0, index's Maximum value is length Length;
(15) request type for judging the service point trigger SPT type in message content SptCtx judges Service Point Trigger member The legitimacy of method in element compares the method in Service Point Trigger element and business in service point trigger SPT in step (6) The method consistency of point element is triggered, whether the parameter index in judgment step (14) is equal to 0;After these inspections all pass through, if Setting condition cond is logical truth, which indicates to run succeeded when trigger SPT type in service point is request type;
(16) logic judgment when trigger SPT type in service point is call request direction is carried out, parameter index adds 1 automatically, obtains Take the message content SptCtx that the business trigger chained list of information is triggered in initial filter standard or norm contextual information, wherein message Content SptCtx includes service point trigger SPT type and Service Point Trigger element, and service point trigger SPT type includes calling Request type and call request direction, Service Point Trigger element include method and example session;
(17) the call request direction for judging the service point trigger SPT type in message content SptCtx judges that business triggers The legitimacy in call request direction in point element compares service point in example session and step (6) in Service Point Trigger element Whether the example session consistency of Service Point Trigger element in trigger SPT, the parameter index in judgment step (14) are equal to 1; After these inspections pass through, setting condition cond1 is logical truth, which indicates that trigger SPT type in service point is call request It runs succeeded when direction, exit step (14) loop to determine;
(18) step (14) loop to determine execution complete after, the value of the parameter index in judgment step (14);If Index is equal to 0, then it represents that it is request type that the cyclic process of step (14), which only performs service point trigger SPT type, Operation directly returns to condition cond at this time;If index is greater than 0, then it represents that the cyclic process of step (14) performs service point Trigger SPT type is the operation of request type and call request direction, needs to be believed according to initial filter standard or norm context at this time The business trigger condition type of Service Trigger Information carries out logical process in breath, if business trigger condition type is " condition With ", then cond and cond1 is subjected to logic and operation and result is assigned to cond;If business trigger condition type is " condition Or ", then cond and cond1 is subjected to logic or operation and result is assigned to cond;Finally directly return to condition cond, such as really bar Part cond is logical truth, then enters step (19);If condition cond is logical falsehood, (21) are entered step;
(19) if return condition cond is logical truth, then it represents that the iFC business of step (13) triggers successfully, at this time by business number It is believed that breath is for identifying whether that the marker of triggering business is set as triggering business;
(20) judge whether parameter count is less than positive integer N, N≤18;If it is less than N, then parameter count adds 1 automatically, and will Parameter count value assigns the index value for making to be used to execute iFC index in call context in service data information, for next The trigger point iFC logical process;
(21) if return condition cond is logical falsehood, then it represents that the iFC business of step (13) triggers failure, at this time by business number It is believed that parameter count adds 1 automatically for identifying whether that the marker of triggering business is set as not triggering business in breath, subsequently into Step (11) loop to determine.
Beneficial effect by adopting the above technical scheme is:
1, treatment effeciency is improved.IMS service trigger method of the present invention carries out initial filter standard or norm using a kind of annular chain meter IFC context management, reduces system processing time, so that system treatment effeciency is greatly improved.
2, stability is improved.The method of the present invention is by IMS core net S-CSCF to the multilayer logic of Service Point Trigger Judgement processing, quickly and efficiently can realize to rate IMS business trigger mechanism, substantially increase the stability of IMS business triggering And reliability.
Detailed description of the invention
Fig. 1 is the schematic diagram that initial filter standard or norm chained list adds node in the embodiment of the present invention;
Fig. 2 is the flow diagram that IMS user initiates calling in the embodiment of the present invention;
Fig. 3 is that IMS business triggers block schematic illustration in the embodiment of the present invention;
Fig. 4 is IMS business trigger flow general illustration in the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing and embodiment the present invention will be described in detail.
A kind of IMS service trigger method, comprising the following steps:
(1) initial filter standard or norm chained list is created in its memory after the starting of IMS system, be used for storing initial filter criteria iFC Context information.As shown in Figure 1, addition iFC contextual information is into initialization filter criteria chained list;
(2) as shown in Fig. 2, IMS system includes Proxy Call Session Control Function P-CSCF, query call conversation control function I- CSCF, service call conversation control function S-CSCF and n application server AS.User UE initiates session to IMS system and asks S-CSCF network element is sought, S-CSCF network element creates initial call context in local memory;In call context, business is triggered When the information used include service data information and user's registration information;Wherein, service data information includes for executing iFC rope The index value drawn and the marker for identifying whether triggering business;User's registration information includes role, user's registration Type and iFC contextual information, wherein role indicates the present S-CSCF network element of calling;
(3) S-CSCF network element carries out IMS business triggering processing according to call treatment logic, checks whether there is matched iFC;
(4) S-CSCF network element creates initial filter standard or norm contextual information, and the initial filter standard or norm contextual information includes industry Business triggering information and service application service device information;Wherein, Service Trigger Information includes business trigger condition type and business touching Send out chained list, business trigger condition type includes " condition with " and " condition or ";Service application service device information includes service application Server name and Dialog processing mechanism, Dialog processing mechanism include session continuation and session termination both of which;Session continues Mode expression can continue session after triggering service fail according to routing policy, and session termination mode is indicated in business It no longer conversates after triggering failure, directly return failure response;
(5) as shown in figure 3, S-CSCF network element creates service point trigger SPT, service point trigger SPT includes Service Point Trigger Element, Service Point Trigger element include method and example session;
(6) it is filled according to the context that the user's registration information in step (2) call context carries out service point trigger SPT, Wherein, method is filled with call request, indicates that S-CSCF network element is carrying out call treatment, example session is filled with Calling Side meeting Words;
(7) length of initial filter standard or norm chained list is obtained, which indicates that corresponding user needs to trigger the iFC sum of business;
(8) rope is given for executing the index value of iFC index in the service data information in obtaining step (2) call context Draw value and assign parameter count, the initial value of parameter count is 0, every judgement for executing a Service Point Trigger, and count value is automatic Add 1, but the maximum value of parameter count is not more than the length of initial filter standard or norm chained list;
(9) as shown in figure 4, judging whether the iFC sum of triggering business is equal to 0, if so, indicating not need to trigger business IFC, terminates the execution of Service Point Trigger at this time, and will be used to identify that the marker for whether triggering business is set as not triggering business; If not, then it represents that the iFC of triggering business in need continues the execution of Service Point Trigger at this time;
(10) value of the parameter count in judgment step (8), if the value of parameter count is equal to the iFC sum of triggering business, It then indicates that all Service Point Trigger have been finished, will be used to identify that the marker for whether triggering business is set as not touching at this time Sending service;
(11) it if the iFC sum of triggering business is not equal to 0 in step (9), loops to determine, loops to determine into Service Point Trigger Condition be parameter count be less than triggering business iFC sum;
(12) according to the condition that loops to determine of step (11), iFC contextual information in obtaining step (2), and pass it to Initial filter standard or norm contextual information in step (4);
(13) after obtaining the success of initial filter standard or norm contextual information, the logical process of iFC business triggering is carried out;Concrete mode For the length Length of the business triggering chained list of Service Trigger Information first in acquisition initial filter standard or norm contextual information should Length indicates that the user needs to trigger the sum of service point trigger SPT;Then it obtains in initial filter standard or norm contextual information The message content of the business trigger chained list of information is triggered, the message content is with the format management of unified chained list;It finally obtains just The business trigger condition type of Service Trigger Information in beginning filter criteria contextual information;
(14) the business trigger chained list for obtaining and triggering information in initial filter standard or norm contextual information is managed collectively by chained list Message content SptCtx, wherein message content SptCtx includes service point trigger SPT type and Service Point Trigger element, industry Business point trigger SPT type includes call request type and call request direction, and Service Point Trigger element includes method and session Example;Into looping to determine, the step of executing (15)~(17) is recycled every time, parameter index, index are set in cyclic process Initial value be 0, index maximum value be length Length;
(15) request type for judging the service point trigger SPT type in message content SptCtx judges Service Point Trigger member The legitimacy of method in element compares the method in Service Point Trigger element and business in service point trigger SPT in step (6) The method consistency of point element is triggered, whether the parameter index in judgment step (14) is equal to 0;After these inspections all pass through, if Setting condition cond is logical truth, which indicates to run succeeded when trigger SPT type in service point is request type;
(16) logic judgment when trigger SPT type in service point is call request direction is carried out, parameter index adds 1 automatically, leads to It crosses chained list unified management and obtains the message content for triggering the business trigger chained list of information in initial filter standard or norm contextual information SptCtx, wherein message content SptCtx includes service point trigger SPT type and Service Point Trigger element, service point triggering Device SPT type includes call request type and call request direction, and Service Point Trigger element includes method and example session;
(17) the call request direction for judging the service point trigger SPT type in message content SptCtx judges that business triggers The legitimacy in call request direction in point element compares service point in example session and step (6) in Service Point Trigger element Whether the example session consistency of Service Point Trigger element in trigger SPT, the parameter index in judgment step (14) are equal to 1; After these inspections pass through, setting condition cond1 is logical truth, which indicates that trigger SPT type in service point is call request It runs succeeded when direction, exit step (14) loop to determine;
(18) step (14) loop to determine execution complete after, the value of the parameter index in judgment step (14);If Index is equal to 0, then it represents that it is request type that the cyclic process of step (14), which only performs service point trigger SPT type, Operation directly returns to condition cond at this time;If index is greater than 0, then it represents that the cyclic process of step (14) performs service point Trigger SPT type is the operation of request type and call request direction, needs to be believed according to initial filter standard or norm context at this time The business trigger condition type of Service Trigger Information carries out logical process in breath, if business trigger condition type is " condition With ", then cond and cond1 is subjected to logic and operation and result is assigned to cond, i.e. cond=cond&& cond1;If Business trigger condition type is " condition or ", then cond and cond1 is carried out logic or operation and result is assigned to cond, i.e., cond = cond|| cond1;Condition cond is finally directly returned, if condition cond is logical truth, enters step (19); If condition cond is logical falsehood, (21) are entered step;
(19) if return condition cond is logical truth, then it represents that the iFC business of step (13) triggers successfully, at this time by business number It is believed that breath is for identifying whether that the marker of triggering business is set as triggering business;
(20) as shown in figure 4, judging whether parameter count is less than positive integer N, N≤18;If it is less than N, then parameter count from It is dynamic to add 1, and parameter count value is assigned to the index value for making to be used to execute in service data information in call context iFC index, it uses In next trigger point iFC logical process;
(21) if return condition cond is logical falsehood, then it represents that the iFC business of step (13) triggers failure, at this time by business number It is believed that parameter count adds 1 automatically for identifying whether that the marker of triggering business is set as not triggering business in breath, subsequently into Step (11) loop to determine, until returning to condition cond is logical truth, are used to identify whether triggering industry for service data information The home position of business is triggering business.
In this method, memory headroom is dynamically allocated in chained list, is the structure that a kind of dynamic carries out storage distribution.Such as Shown in Fig. 1, which has n+1 node, and node 0 is the head of chained list, and node n is the tail portion of chained list.Node 0 is used to identify chain The initial position of table, behind n node be used to storing data.There are three attributes for each node tool: data, a upper node refer to Needle and next node pointer.Wherein, data refer to the data of chained list management;A upper node pointer is stored and the node The memory address of the adjacent node in front;Next node pointer is stored with the memory of the node of the node rear adjacent Location.
Currently, object oriented language provides the operating method of these chained lists and with reference to realizing, as chained list creation, chained list are deleted It removes and node addition, knot removal, node updates etc..The operating method of present invention combination chained list, realizes the quick of node Addition, completes the creation process of entire chained list, constructs a kind of side that IMS Service Data Management is carried out using annular chain meter Method.
In short, user carries out the trigger action of business using the S-CSCF of home network in this method, pass through inceptive filtering Criterion analyzes and determines that triggering corresponding service application service device carries out business logic processing.This control mode makes IMS control Layer is kept completely separate with operation layer, is the service trigger method of efficient, quick, stable IMS a kind of.
It should be noted that the above is only preferred application examples of the invention, it is not intended to limit protection model of the invention It encloses.All within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done, should be included in the present invention Protection scope within.

Claims (1)

1. a kind of IMS service trigger method, which comprises the following steps:
(1) initial filter standard or norm chained list is created in its memory after the starting of IMS system, be used for storing initial filter criteria iFC Context information;
(2) IMS user initiates session to IMS system and requests to arrive S-CSCF network element, and S-CSCF network element is first in local memory creation Beginning call context;In call context, the information used when triggering business includes service data information and user's registration letter Breath;Wherein, service data information includes the index value for executing iFC index and the mark for identifying whether triggering business Position;User's registration information includes role, user's registration type and iFC contextual information, wherein role table Show the present S-CSCF network element of calling;
(3) S-CSCF network element carries out IMS business triggering processing according to call treatment logic, checks whether there is matched iFC;
(4) S-CSCF network element creates initial filter standard or norm contextual information, and the initial filter standard or norm contextual information includes industry Business triggering information and service application service device information;Wherein, Service Trigger Information includes business trigger condition type and business touching Send out chained list, business trigger condition type includes " condition with " and " condition or ";Service application service device information includes service application Server name and Dialog processing mechanism, Dialog processing mechanism include session continuation and session termination both of which;Session continues Mode expression can continue session after triggering service fail according to routing policy, and session termination mode is indicated in business It no longer conversates after triggering failure, directly return failure response;
(5) S-CSCF network element creates service point trigger SPT, and service point trigger SPT includes Service Point Trigger element, business touching Sending out point element includes method and example session;
(6) it is filled according to the context that the user's registration information in step (2) call context carries out service point trigger SPT, Wherein, method is filled with call request, indicates that S-CSCF network element is carrying out call treatment, example session is filled with Calling Side meeting Words;
(7) length of initial filter standard or norm chained list is obtained, which indicates that corresponding user needs to trigger the iFC sum of business;
(8) rope is given for executing the index value of iFC index in the service data information in obtaining step (2) call context Draw value and assign parameter count, the initial value of parameter count is 0, every judgement for executing a Service Point Trigger, and count value is automatic Add 1, but the maximum value of parameter count is not more than the length of initial filter standard or norm chained list;
(9) judge whether the iFC sum of triggering business is equal to 0, if so, indicating the iFC for not needing to trigger business, at this time eventually The only execution of Service Point Trigger, and will be used to identify that the marker for whether triggering business is set as not triggering business;If not, then it represents that The iFC of triggering business in need continues the execution of Service Point Trigger at this time;
(10) value of the parameter count in judgment step (8), if the value of parameter count is equal to the iFC sum of triggering business, It then indicates that all Service Point Trigger have been finished, will be used to identify that the marker for whether triggering business is set as not touching at this time Sending service;
(11) it if the iFC sum of triggering business is not equal to 0 in step (9), loops to determine, loops to determine into Service Point Trigger Condition be parameter count be less than triggering business iFC sum;
(12) according to the condition that loops to determine of step (11), iFC contextual information in obtaining step (2), and pass it to Initial filter standard or norm contextual information in step (4);
(13) after obtaining the success of initial filter standard or norm contextual information, the logical process of iFC business triggering is carried out;Concrete mode For the length Length of the business triggering chained list of Service Trigger Information first in acquisition initial filter standard or norm contextual information should Length indicates that the user needs to trigger the sum of service point trigger SPT;Then it obtains in initial filter standard or norm contextual information Trigger the message content of the business trigger chained list of information;Finally obtain business triggering letter in initial filter standard or norm contextual information The business trigger condition type of breath;
(14) the message content SptCtx that the business trigger chained list of information is triggered in initial filter standard or norm contextual information is obtained, Wherein message content SptCtx includes service point trigger SPT type and Service Point Trigger element, service point trigger SPT type Including call request type and call request direction, Service Point Trigger element includes method and example session;Into looping to determine, Circulation executes the step of (15)~(17) every time, and parameter index is arranged in cyclic process, and the initial value of index is 0, index's Maximum value is length Length;
(15) request type for judging the service point trigger SPT type in message content SptCtx judges Service Point Trigger member The legitimacy of method in element compares the method in Service Point Trigger element and business in service point trigger SPT in step (6) The method consistency of point element is triggered, whether the parameter index in judgment step (14) is equal to 0;After these inspections all pass through, if Setting condition cond is logical truth, which indicates to run succeeded when trigger SPT type in service point is request type;
(16) logic judgment when trigger SPT type in service point is call request direction is carried out, parameter index adds 1 automatically, obtains Take the message content SptCtx that the business trigger chained list of information is triggered in initial filter standard or norm contextual information, wherein message Content SptCtx includes service point trigger SPT type and Service Point Trigger element, and service point trigger SPT type includes calling Request type and call request direction, Service Point Trigger element include method and example session;
(17) the call request direction for judging the service point trigger SPT type in message content SptCtx judges that business triggers The legitimacy in call request direction in point element compares service point in example session and step (6) in Service Point Trigger element Whether the example session consistency of Service Point Trigger element in trigger SPT, the parameter index in judgment step (14) are equal to 1; After these inspections pass through, setting condition cond1 is logical truth, which indicates that trigger SPT type in service point is call request It runs succeeded when direction, exit step (14) loop to determine;
(18) step (14) loop to determine execution complete after, the value of the parameter index in judgment step (14);If Index is equal to 0, then it represents that it is request type that the cyclic process of step (14), which only performs service point trigger SPT type, Operation directly returns to condition cond at this time;If index is greater than 0, then it represents that the cyclic process of step (14) performs service point Trigger SPT type is the operation of request type and call request direction, needs to be believed according to initial filter standard or norm context at this time The business trigger condition type of Service Trigger Information carries out logical process in breath, if business trigger condition type is " condition With ", then cond and cond1 is subjected to logic and operation and result is assigned to cond;If business trigger condition type is " condition Or ", then cond and cond1 is subjected to logic or operation and result is assigned to cond;Finally directly return to condition cond, such as really bar Part cond is logical truth, then enters step (19);If condition cond is logical falsehood, (21) are entered step;
(19) if return condition cond is logical truth, then it represents that the iFC business of step (13) triggers successfully, at this time by business number It is believed that breath is for identifying whether that the marker of triggering business is set as triggering business;
(20) judge whether parameter count is less than positive integer N, N≤18;If it is less than N, then parameter count adds 1 automatically, and will Parameter count value assigns the index value for making to be used to execute iFC index in call context in service data information, for next The trigger point iFC logical process;
(21) if return condition cond is logical falsehood, then it represents that the iFC business of step (13) triggers failure, at this time by business number It is believed that parameter count adds 1 automatically for identifying whether that the marker of triggering business is set as not triggering business in breath, subsequently into Step (11) loop to determine.
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Application publication date: 20190719