CN101163135A

CN101163135A - Service control cell preprocessing method, device and system

Info

Publication number: CN101163135A
Application number: CNA2006101319630A
Authority: CN
Inventors: 施有铸
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-10-13
Filing date: 2006-10-13
Publication date: 2008-04-16

Abstract

The invention discloses a pretreatment method for a service control unit, which first implements service filtering rules, confirms the called service control unit and the corresponding pretreatment description information, and then deals with the current communication according to the pretreatment description information in the process of carrying out service. The invention also discloses a pretreatment device and a system for the service control unit. The signaling path of service control unit can be regulated by utilizing the invention in the process of communication subsequent process, thus which solves problem of service interaction and conflict and improves the efficiency of the call establishment and shortens call spicing time.

Description

A kind of service control cell preprocessing method, Apparatus and system

Technical field

The present invention relates to the calling service technology of internet multimedia subsystem, particularly a kind of service control cell preprocessing method, Apparatus and system.

Background technology

Internet protocol multimedia subsystem (IMS, Internet Protocol Multimedia Subsystem) is an IP Multimedia System of 3G (Third Generation) Moblie partner program (3GPP, 3rd Generation Partnership Project) definition.IMS network using conversation initialized protocol (SIP) is the objective network that the 3G mobile communications network provides unified multimedia service and application as call control signalling.

In the IMS network, session layer is separated with operation layer, and IMS provides necessary method for calling of business.Host's execution environment of miscellaneous service is called Service Control Unit, and miscellaneous service logic control function can be provided.Service Control Unit comprises IMS application server, traditional intelligence network service controlled function entity (SCF, Service Control Function) etc.With the IMS application server is example, provides professional process to comprise following three basic steps in the IMS network:

Step 1: define possible business or collection of services;

Step 2: when the user orders/revises service order and concerns, create the proprietary business datum of user with the form of initial filter criteria (iFC, InitialFilter Criteria);

Specifically, comprise calling service condition and corresponding application server (AS thereof among the iFC, Application Server), the calling service condition is by service point trigger (SPT, Service PointTrigger) describes, the content of SPT comprises: request-unified resource sign (Request-URI), sign SIP initial request resource pointed; SIP method (Method) is represented the type of this SIP initial request; SIP header field (Header) comprises the information relevant with this SIP initial request, can be any SIP header field and header field content wherein; Session scenario (Session Case) has three possible values, promptly initial, stop or stop unregistered; Any Session Description Protocol (SDP, Session Description Protocol) field contents in the conversation description (Session Description), SIP method.

Step 3: when service-call session control function (S-CSCF) receives the SIP initial request, according to current sessions situation and received SIP initial request message, carry out iFC, determine and current sessions situation and the corresponding application server of this SIP initial request, and received SIP initial request is passed to determined application server.

Usually, different business can be provided by different application servers, and different business may exist in application process and influences each other and conflict.For example, S-CSCF receives a sip invite message (INVITE), according to the execution of iFC, has called AS1, AS2, these three application servers of AS3 successively, and this INVITE is sent to the called subscriber; The called user terminal ring supposes that the called subscriber has opened the service of Call Forwarding No Reply Voice Mailbox, after the ringing timeout, calls out and is before gone to Voice Mailbox; Voice Mailbox is replied, and S-CSCF receives the response message (200 OK) that comes from Voice Mailbox, and according to prior art, this 200 OK message will mail to AS3, AS2 and AS1 successively according to the signaling paths of having set up; AS2 receives 200 OK message and thinks that then this is the 200 OK message that the user returns, and will play voice messaging to it, and 200 OK message in this example are actually that Voice Mailbox returns, and obviously, AS2 can not receive this 200 OK message.

And, according to the IMS standard, application server can only be by the SIP initial request message, such as: INVITE, instant message (MESSAGE), subscribe message (SUBSCRIBE) and Reference News (REFER) etc. triggering, i.e. a treatment S IP initial request message among the iFC; But some application server in fact only just need be triggered under the special scenes in communication process.For example, processing (the Call Forwarding Busy that calls forwarding on busy, CFB) application server CFB AS only meets when hurrying the called subscriber and just need be triggered, still, because prior art just need be set up signaling paths when the SIP initial request, therefore, CFB AS must just be triggered when the SIP initial request, and if the current free time of called subscriber, then CFB AS is with useless being in the signaling paths, obviously, reduced like this call setup efficient, prolonged the time of call proceeding.

In addition, according to the IMS standard, complete, a normal call establishment will pass through INVITE, 183 answer code message, provisional confirmation message (PRACK), 200 answer code message, updating message (UPDATE), 200 answer code message, 180 ring response messages, PRACK message, 200 answer code message, 200 response message, acknowledge message (ACK) totally 11 message successively.When S-CSCF receives INVITE,, call AS1 and after it sent INVITE, 10 subsequent voice calls that after this S-CSCF received were set up message, all will send to AS1 according to the signaling paths of having set up according to the execution of iFC; But in fact, AS1 only need receive INVITE, 180 ring response messages, 200 response message, ACK message this totally 4 message can realize service logic control, S-CSCF sends to AS1 with all message, has reduced efficient, the prolongation of call setup and has called out the time of continuing.

As seen from the above analysis, because the signaling paths of application server just is fixed when the SIP initial request in the prior art, can't in the communication subsequent process, adjust again.Therefore, can't solve service interaction and the collision problem of Service Control Unit after being called, can't send message to Service Control Unit as required, and make the efficient of call setup lower, time of call proceeding is longer.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of service control cell preprocessing method, so that the signaling paths of Service Control Unit can be adjusted in the communication subsequent process, thereby solves service interaction and collision problem.

Second main purpose of the present invention is to provide a kind of Service Control Unit pretreatment unit, so that the signaling paths of Service Control Unit can be adjusted in the communication subsequent process, thereby solves service interaction and collision problem.

The 3rd main purpose of the present invention is to provide a kind of Service Control Unit pretreatment system, so that the signaling paths of Service Control Unit can be adjusted in the communication subsequent process, thereby solves service interaction and collision problem.

For achieving the above object, technical scheme of the present invention specifically is achieved in that

A kind of service control cell preprocessing method, this method may further comprise the steps:

A, execution service filtering rule, determine to be called Service Control Unit and corresponding preliminary treatment descriptor thereof;

B, in process of service execution, according to determined preliminary treatment descriptor current communication is handled.

Further, before steps A, can comprise:

A0, the disposition that may occur in process of service execution according to the described Service Control Unit that is called are provided with and the corresponding preliminary treatment descriptor of the described Service Control Unit that is called in described service filtering rule.

Wherein, described preliminary treatment descriptor can comprise pre-trigger condition and corresponding pretreatment mode thereof;

Step B is described handle accordingly can for: when described pre-trigger condition satisfies, carry out and the corresponding pretreatment mode of described pre-trigger condition.

Wherein, described pre-trigger condition can comprise at least a in subsequent message, session status and the Service Control Unit malloc failure malloc;

Described pretreatment mode can comprise send message, refuse information, again call Service Control Unit, call the homogeneity Service Control Unit, call new Service Control Unit, carry out next bar service filtering rule, stop to carry out service filtering rule, discharge Service Control Unit and the release of communicate by letter at least a.

Wherein, described subsequent message can comprise the described Service Control Unit that is called be called after, in current communication all message that comprise release message before being released at least one;

Described session status can comprise at least one in all process statuses of current communication;

Described Service Control Unit malloc failure malloc can comprise that the described Service Control Unit that is called does not have the service logical calling failure in response and/or the described Service Control Unit that is called.

Wherein, the subsequent message in the described pre-trigger condition can comprise: message name and/or the message content and/or the informed source information of any subsequent message.

Wherein, the transmission message in the described pretreatment mode can be message from appointment to the described Service Control Unit that is called that send.

Wherein, the message of described appointment can be the message of specify message title.

Further, the message of described appointment can be the message of specify message content and/or informed source.

Wherein, the message of described appointment can comprise the subsequent message in the described pre-trigger condition.

Wherein, the refuse information in the described pretreatment mode can for: forbid sending subsequent message in the described pre-trigger condition to the described Service Control Unit that is called.

Further, Service Control Unit information with the described Service Control Unit homogeneity that is called can be described in described service filtering rule;

Described call the homogeneity Service Control Unit can for: be called during the Service Control Unit malloc failure malloc when described, send message call to described homogeneity Service Control Unit.

Further, in described preliminary treatment descriptor, can specify the address of new business control unit;

Described call new Service Control Unit can for: when described pre-trigger condition satisfies, send message call to described new business control unit.

Further, when described Service Control Unit malloc failure malloc is service logical calling when failure in the Service Control Unit, the described Service Control Unit that is called can return expression service logical calling failure.

Wherein, the described Service Control Unit that is called can be a plurality of Service Control Units.

Further, described the be called Service Control Unit relevant with described Service Control Unit malloc failure malloc can be described in described pre-trigger condition.

Further, the purpose Service Control Unit of described transmission message can be described in described pretreatment mode, and/or the purpose Service Control Unit of described refuse information, and/or with the described relevant described Service Control Unit that is called in source that calls Service Control Unit again, and/or with the described relevant described Service Control Unit that is called in source that calls the homogeneity Service Control Unit, and/or the purpose Service Control Unit of described release Service Control Unit.

Further, can in described preliminary treatment descriptor, describe a plurality of Service Control Units that are called pre-trigger condition combination in any and with the corresponding pretreatment mode of the combination in any of described pre-trigger condition.

Wherein, the foundation of the described service filtering rule of execution in step A is: receive professional triggering message or current communication process state and move.

Wherein, described Service Control Unit can be internet multimedia subsystem IMS application server or traditional intelligence network service controlled function entity SCF.

A kind of Service Control Unit pretreatment unit, this device comprises: pretreatment information acquisition module and preprocess method Executive Module;

Described pretreatment information acquisition module is used to carry out service filtering rule, determine to be called Service Control Unit and corresponding preliminary treatment descriptor thereof, and provide described preliminary treatment descriptor to described preprocess method Executive Module;

Described preprocess method Executive Module is used in process of service execution, according to the preliminary treatment descriptor that described pretreatment information acquisition module is provided current communication is handled.

Further, this device can also comprise pre-trigger condition matching module;

Described preliminary treatment descriptor can comprise pre-trigger condition and corresponding preprocess method thereof;

Described pre-trigger condition matching module, can be used in described process of service execution, judge according to the pre-trigger condition that described pretreatment information acquisition module is provided whether described pre-trigger condition satisfies, when described pre-trigger condition satisfies, notify described preprocess method Executive Module, carry out the preprocess method that described pretreatment information acquisition module is provided.

A kind of Service Control Unit pretreatment system, this system comprises: service filtering rule storehouse, Service Control Unit pretreatment unit and Service Control Unit;

Described service filtering rule storehouse is used to preserve or produce user's service filtering rule, and is used for providing described service filtering rule to described Service Control Unit pretreatment unit;

The service filtering rule that provided according to the service filtering rule storehouse is provided described Service Control Unit pretreatment unit, determines and the corresponding preliminary treatment descriptor of described Service Control Unit, and according to described preliminary treatment descriptor current communication is handled;

Described Service Control Unit is used for the processing according to described Service Control Unit pretreatment unit, and miscellaneous service logic control function is provided.

Wherein, when in the Business Processing process, producing service filtering rule, described Service Control Unit, the service filtering rule that can be further used for being produced sends to the service filtering rule storehouse;

Described service filtering rule storehouse can be further used for receiving, also preserve the service filtering rule that comes from described Service Control Unit.

Wherein, described service filtering rule storehouse is at least one;

Described service filtering rule storehouse can be the independent user-subscribed database that is provided with;

Perhaps, can be arranged in the described Service Control Unit pretreatment unit, the service filtering rule in the described service filtering rule storehouse is present among the described Service Control Unit pretreatment unit as program or configuration data;

Perhaps, can be arranged in the described Service Control Unit, the service filtering rule in the described service filtering rule storehouse produces in the Business Processing process.

As seen from the above technical solution, the disposition that the present invention may occur in process of service execution according to the Service Control Unit that is called in advance, the corresponding preliminary treatment descriptor of Service Control Unit is provided with and is called in service filtering rule; Carry out service filtering rule then, determine Service Control Unit and corresponding preliminary treatment descriptor thereof; In process of service execution after this, according to determined preliminary treatment descriptor, to current communication process, thereby can in the communication subsequent process, adjust the signaling paths of Service Control Unit, service interaction and collision problem after the solution Service Control Unit is called, and improve call setup efficient, shortening call proceeding time.

And, preliminary treatment descriptor of the present invention is to be provided with according to the disposition that the Service Control Unit that is called may occur in process of service execution, and because the service ability that Service Control Unit can provide is as can be known, therefore the preliminary treatment descriptor can be provided with at the service ability and the different disposal situation of Service Control Unit, service interaction and the collision problem afterwards thereby the solution Service Control Unit is called.

In addition, the present invention can carry out preliminary treatment to a plurality of Service Control Units that are called in a service filtering rule, so, can simplify description and execution to service filtering rule on the one hand; On the other hand, can also be combined into more, the application of preliminary treatment more flexibly.

Description of drawings

Fig. 1 is the schematic flow sheet of service control cell preprocessing method in the preferred embodiment of the present invention.

Fig. 2 is the schematic flow sheet of service control cell preprocessing method in the specific embodiment of the invention one to three.

Fig. 3 is the structural representation of Service Control Unit pretreatment unit in the specific embodiment of the invention.

Fig. 4 is the structural representation of Service Control Unit pretreatment system in the specific embodiment of the invention.

Embodiment

For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in further detail.

Fig. 1 is the schematic flow sheet of service control cell preprocessing method in the preferred embodiment of the present invention.Referring to Fig. 1, this method may further comprise the steps:

Step 101: carry out service filtering rule, determine to be called Service Control Unit and corresponding preliminary treatment descriptor thereof.

In this step, the foundation that service filtering rule is performed is: migration etc. has taken place in the process status that triggers message, current communication according to business, for example, professional to trigger message can be SIP initial request message etc., and state transition can be from " ring " state transition to " terminal no response " state etc.

The disposition that the present invention may occur in process of service execution according to the Service Control Unit that is called in advance, the setting and the corresponding preliminary treatment descriptor of Service Control Unit that is called in service filtering rule, this preliminary treatment descriptor comprises pre-trigger condition and corresponding pretreatment mode thereof:

Wherein, pre-trigger condition comprises at least a in subsequent message, session status and the Service Control Unit malloc failure malloc; Pretreatment mode comprise send message, refuse information, again call Service Control Unit, call the homogeneity Service Control Unit, call new Service Control Unit, carry out next bar service filtering rule, stop to carry out service filtering rule, discharge Service Control Unit and the release of communicate by letter at least a.

Here, subsequent message in the pre-trigger condition be meant this Service Control Unit be called after (after receiving that promptly the professional process status that triggers message or current communication is moved), be released all message before until current communication, also comprising release message, for example can be the response message of SIP initial request message or any SIP method etc.; The message name of subsequent message, message content and combination in any thereof can be as pre-trigger conditions; Can comprise one or more subsequent message in the pre-trigger condition;

Session status in the pre-trigger condition comprises all process statuses and the combination in any thereof of current communication, with 3GPP TS 23.278 standards is example, session status comprises: acquisition of information, analytical information, route selection failure, busy, the no response of making a start of making a start, make a start reply, make a start take out stitches, make a start abandon, terminal call attempt authentication, terminal are busy, terminal no response, terminal responds, terminal are taken out stitches, terminal is abandoned, and can comprise in the above-mentioned session status one or more in pre-trigger condition; The specific explanations of above-mentioned each session status can repeat no more here referring to 3GPP TS 23.278;

Service Control Unit malloc failure malloc in the pre-trigger condition is meant the not response of Service Control Unit that is called, or the service logical calling failure in the Service Control Unit that is called etc.; Wherein, the latter represents that Service Control Unit is by normal call, returned response, but failing provides corresponding business for the user as scheduled, the reason that causes service logical calling failure may be that user's lack of competence or free of data are used in this business, the Service Control Unit certain functional fault etc., service logical calling failure is different from service logic in the Service Control Unit by normal call but the situation of communication failure, and for example call blocking business is called and just belongs to communication failure; Can expand related protocol, make when service logical calling is failed, Service Control Unit can return expression service logical calling failure, as the sip response sign indicating number of expression service logical calling failure or carry the sip message etc. of service logical calling failure indication; In actual applications, also the failed message that returns can be represented the service logical calling failure as the subsequent message in the pre-trigger condition; In pre-trigger condition, the situation of miscellaneous service control unit malloc failure malloc can be described respectively, for example, Service Control Unit does not have corresponding or service logical calling failure etc., can describe the situation of miscellaneous service control unit malloc failure malloc is unified yet.

Transmission message in the pretreatment mode is: the message that sends appointment to Service Control Unit, the title of specified message can only be described in the pretreatment mode, can also further describe the content of specified message, and specified message can also be the subsequent message in the pre-trigger condition;

Refuse information in the pretreatment mode is: forbid sending subsequent message in the pre-trigger condition to Service Control Unit;

The Service Control Unit that calls again in the pretreatment mode is: the Service Control Unit to malloc failure malloc resends message call; This pretreatment mode can be used to handle the situation that pre-trigger condition is the Service Control Unit malloc failure malloc;

The homogeneity Service Control Unit that calls in the pretreatment mode is: send message call to the homogeneity Service Control Unit; This pretreatment mode can be used to handle the situation that pre-trigger condition is the Service Control Unit malloc failure malloc; Here, the Service Control Unit that can provide with the Service Control Unit same services of current malloc failure malloc is provided the homogeneity Service Control Unit, and as the AS7 malloc failure malloc, AS8 can provide the service identical with AS7, then calls AS8, sends message to it; The address of homogeneity Service Control Unit can be arranged on the address of the Service Control Unit that is called in the service filtering rule, so, when carrying out service filtering rule, just can obtain the address with the corresponding homogeneity Service Control Unit of certain Service Control Unit;

The new Service Control Unit that calls in the pretreatment mode is: specify the address of new business control unit, send message call to specified new business control unit; The above-mentioned homogeneity Service Control Unit that calls also can be realized by the manner, and the address of homogeneity Service Control Unit promptly is set in the manner;

Next bar service filtering rule of execution in the pretreatment mode is: if there is next bar service filtering rule, then carry out next bar service filtering rule;

Stopping in the pretreatment mode carried out service filtering rule: if there is next bar service filtering rule, then stop to carry out follow-up service filtering rule, and continue to handle current communication, for example, continue to called route;

Release Service Control Unit in the pretreatment mode is: discharge invoked Service Control Unit, general, also can adopt the transmission message sets in the pretreatment mode is release message, for example SIP BYE message, SIP cancel (CANCEL) message etc., and expression discharges invoked Service Control Unit.

Communication in the pretreatment mode is released to: discharge current communication.

Step 102: in process of service execution, current communication is handled according to determined preliminary treatment descriptor.

In this step, when the pre-trigger condition in the preliminary treatment descriptor satisfies, handle accordingly according to the pretreatment mode in the preliminary treatment descriptor.

So far, finish service control cell preprocessing method of the present invention.

In the said method, Service Control Unit is host's execution environment of miscellaneous service, and miscellaneous service logic control function can be provided.Service Control Unit is IMS application server, traditional intelligence network service controlled function entity (SCF, Service Control Function) etc.Be that example describes with the IMS application server in the following examples.

Embodiment one:

In the present embodiment, suppose to receive a SIP INVITE, called IMS application server AS 1, thereafter, when called subscriber's no response, call out and before gone to Voice Mailbox, Voice Mailbox is replied, and return 200 OK response message, and AS1 does not wish to receive 200 OK message of system's automatic-answering back device, therefore, should shield this 200 OK message to AS1.

In order to realize 200 OK message to the automatic-answering back device of AS1 shielding harness, adopt the mode that existing iFC is expanded in the present embodiment, in service filtering rule, be provided with and the corresponding preliminary treatment descriptor of AS1 in advance.For simplicity, only list service filtering rule segment relevant in the complete service filtering rule below with present embodiment:

<SPT>

<Method>INVITE</Method>

</SPT>

</TriggerPoint>

<ServerName>sip:as1@ims.example.com</ServerName>

<Origination>No_ApplicationServer_SameCall</Origination>

<Header>Contact</Header>

<Content>automata</Content>

</SIPHeader>

</PreTriggerMessage>

<Mode>RejectMessage</Mode>

</PreHandlingMode>

</Pretreatment>

</ApplicationServer>

For convenience of description, in the present embodiment above-mentioned service filtering rule segment is called service filtering rule one.Below to the explanation of service control cell preprocessing method in the present embodiment, the part relevant with this service filtering rule segment also described emphatically.

Fig. 2 is the schematic flow sheet of service control cell preprocessing method in the specific embodiment of the invention one to three.Referring to Fig. 2, this method may further comprise the steps:

Step 201: trigger message INVITE according to business, carry out service filtering rule, determine to be called application server and corresponding preliminary treatment descriptor thereof.

Service filtering rule performed in this step is shown in service filtering rule one, wherein,＜TriggerPoint〉and＜/TriggerPoint between content be trigger point information, the trigger condition of representing this service filtering rule, in the present embodiment, the trigger condition of this service filtering rule is that value is method (Method) the service point trigger (SPT) of INVITE.

In this step, after INVITE execution service filtering rule one, obtain being called application server name (ServerName) and corresponding preliminary treatment descriptor (Pretreatment) thereof, that is: shown in service filtering rule one＜ApplicationServer and＜/ApplicationServer between content.

Wherein, ServerName represents the application server address that is called, and in the present embodiment, value is sip:as1@ims.example.com, represents the address of AS1; If there is the Service Control Unit with the AS1 homogeneity, the address of the homogeneity Service Control Unit of AS1 can be set here;

＜Pretreatment〉and＜/Pretreatment between content representation and the corresponding preliminary treatment descriptor of AS1, this part content is exactly the extended description of present embodiment to service filtering rule.The preliminary treatment descriptor comprises pre-trigger condition and corresponding pretreatment mode thereof; May there be different preliminary treatment descriptors in same Service Control Unit under different situations, among the present invention, can adopt one＜Pretreatment〉＜/Pretreatment〉all pre-trigger conditions and corresponding pretreatment mode thereof are described, also can adopt a plurality of＜Pretreatment〉＜/Pretreatment〉each pre-trigger condition and corresponding pretreatment mode thereof described respectively;

In the preliminary treatment descriptor,＜PreTriggerMessage〉and＜/PreTriggerMessage between the pre-trigger condition of content representation, this partial content can be made up of the source-information of message name, message content and this message of any subsequent message;＜PreHandlingMode〉and＜/PreHandlingMode between content representation and the pre-corresponding pretreatment mode of trigger condition.

Comprise in the pre-trigger condition shown in service filtering rule one: the content (Content) of message name (MessageName), informed source (Origination), SIP header field (SIPHeader), header field (Header) and header field;

Wherein, MessageName represents the title of subsequent message, and in the present embodiment, value is 200;

Origination represents the source of subsequent message, receives the message of returning behind the message call because subsequent message both can be the Service Control Unit that is called, and also can be the message that comes from miscellaneous equipment; And subsequent message both can be arranged in same communication with message call, as the subsequent voice calls of the initial request message returned of the Service Control Unit that is called is set up message; Also can be arranged in the communication different with message call, as 200 OK message in the present embodiment both may be above-mentioned INVITE response message, it also may be the response message of a new calling, therefore, need indicate the source of subsequent message, promptly from which equipment and which communication, further, can specifically indicate title, type, attribute and the address etc. of source device according to the needs of practical application.The present invention is by being provided with the source sign source with the expression subsequent message, for example, whether comes from the Service Control Unit that is called, subsequent message and message call at subsequent message and whether is arranged in same communication and different sources is set identifies; In the present embodiment, the source sign of subsequent message is set to No_ApplicationServer_SameCall, wherein, No_ApplicationServer represents that subsequent message 200 is not to be sent by the Service Control Unit that is called, and SameCall represents that subsequent message 200 and message call are arranged in same communication;

＜SIPHeader〉and＜/SIPHeader between the SIP header field content of content representation subsequent message, in the present embodiment, Header is set to get in touch header field (Contact), Content header field content is set to automatic operation (automata);

Mode in the pretreatment mode (Mode) expression and the pre-corresponding pretreatment mode of trigger condition in the present embodiment, are set to represent the pretreatment mode of refuse information (RejectMessage).

Step 202: write down the preliminary treatment descriptor of the application server that is called, and send INVITE, i.e. this application server of initial call to the application server that is called.

In this step, the service filtering rule one performed according to step 201, obtain being called application server AS 1 and corresponding preliminary treatment descriptor thereof, send INVITE to AS1 at the preliminary treatment descriptor of record AS1.

Step 203: according to the malloc failure malloc of subsequent message received in the process of service execution, current sessions state and Service Control Unit, the preliminary treatment descriptor that contrast is write down, judge whether pre-trigger condition satisfies, when pre-trigger condition satisfied, corresponding pretreatment mode was handled current communication in the use preliminary treatment descriptor.

In this step, when receiving the 200 OK response message that come from Voice Mailbox, this 200 OK response message and the pre-trigger condition that is write down are mated: because this 200 OK message is to come from replying of Voice Mailbox, therefore be provided with " automata " in the Contact header field in the message, represent that this is an automatic-answering back device that comes from system; And this 200 OK message is not sent by the Service Control Unit that is called, and is arranged in same communication with message call, and therefore, the match is successful with pre-trigger condition that step 202 is write down.After the match is successful, use in the preliminary treatment descriptor and handle the corresponding business control unit with the corresponding pretreatment mode of this pre-trigger condition, in the present embodiment, pretreatment mode promptly is not sent to AS1 to this 200 OK response message for the processing mode of expression refuse information.

Similarly, by with 183, PRACK message, UPDATE message etc. set up message as the subsequent message in the pre-trigger condition to the Service Control Unit useless subsequent voice calls of logic control of managing business, and pretreatment mode correspondingly is set to refuse information, just can realize sending message to Service Control Unit as required, to set up message and shield the Service Control Unit useless subsequent voice calls of logic control of managing business, thereby simplify call treatment, improved call setup efficient, shortened the call proceeding time to Service Control Unit.

So far, finish the present embodiment service control cell preprocessing method.

As seen from the above-described embodiment, the disposition that present embodiment may occur in process of service execution according to the application server AS 1 that is called in advance is provided with and the corresponding preliminary treatment descriptor of AS1 in service filtering rule one; Then, trigger message INVITE according to business and carry out service filtering rule one, obtain corresponding preliminary treatment descriptor with AS1; In process of service execution after this, according to determined preliminary treatment descriptor, handle AS1, thereby realized adjusting as required the signaling paths of the Service Control Unit that is called, service interaction and collision problem have been solved, in addition, can also improve call setup efficient, shortening call proceeding time.

In the above-described embodiments, be that subsequent message, pretreatment mode are that the situation of refuse information is that example has been described in detail technical solution of the present invention with pre-trigger condition.In actual applications, when migration takes place session status, also may satisfy pre-trigger condition; And for Service Control Unit, also have other pretreatment mode, and for example sending the mode of message, will be elaborated to how implementing the present invention under these situations among the embodiment two below.

Embodiment two:

In the present embodiment, suppose to receive a SIP INVITE, called IMS application server AS 2, thereafter, when called subscriber's no response, AS2 wishes to withdraw from current communication, therefore, should send new message call to AS2.

For when called subscriber's no response, realize that AS2 withdraws from current communication, adopt the mode that existing iFC is expanded in the present embodiment, in service filtering rule, be provided with and the corresponding preliminary treatment descriptor of AS2 in advance.For simplicity, only list service filtering rule segment relevant in the complete service filtering rule below with present embodiment:

<SPT>

<Method>INVITE</Method>

</SPT>

</TriggerPoint>

<ServerName>sip:as2@ims.example.com</ServerName>

<SessionState>Terminating_NoAnswer</SessionState>

</PreTriggerSessionState>

<Mode>NewMessage</Mode>

<Origination>SameCallWithInvokingMessage</Origination>

</PreHandlingMode>

</Pretreatment>

</ApplicationServer>

For convenience of description, in the present embodiment above-mentioned service filtering rule segment is called service filtering rule two.Below to the explanation of service control cell preprocessing method in the present embodiment, the part relevant with this service filtering rule segment also described emphatically.

The schematic flow sheet of service control cell preprocessing method is identical with Fig. 2 among the embodiment one in the present embodiment, sees also Fig. 2.In the present embodiment, service control cell preprocessing method may further comprise the steps:

In step 201, trigger message INVITE according to business, carry out service filtering rule, determine to be called application server and corresponding preliminary treatment descriptor thereof.

Service filtering rule performed in this step is shown in service filtering rule two,＜TriggerPoint〉and＜/TriggerPoint between content be trigger point information, identical with embodiment one, the trigger condition of service filtering rule is that value is method (Method) the service point trigger (SPT) of INVITE in the present embodiment.

In this step, after INVITE execution service filtering rule two, similar with embodiment one, obtain being called application server name (ServerName) and corresponding preliminary treatment descriptor (Pretreatment) thereof, that is: shown in service filtering rule two＜ApplicationServer and＜/ApplicationServer between content;

Wherein, ServerName represents the application server address that is called, and in the present embodiment, value is sip:as2@ims.example.com, represents the address of AS2;

Wherein,＜Pretreatment〉and＜/Pretreatment between content representation and the corresponding preliminary treatment descriptor of AS2, this part content is exactly the extended description of present embodiment to service filtering rule.

In the preliminary treatment descriptor,＜PreTriggerSessionState〉and＜/PreTriggerSessionState between the pre-trigger condition of content representation, this partial content can be the title of any session status and relevant any content thereof;＜PreHandlingMode〉and＜/PreHandlingMode between content representation and the pre-corresponding pretreatment mode of trigger condition.

In the pre-trigger condition shown in service filtering rule two, the title of session status (SessionState) expression session status, in the present embodiment, value is terminal _ no response (Terminating_NoAnswer);

Mode in the pretreatment mode (Mode) expression and the pre-corresponding pretreatment mode of trigger condition, in the present embodiment, be set to the pretreatment mode that expression sends message (NewMessage), and this new information of appointment is byebye message (BYE) in message name (MessageName).Similar with the source that indicates subsequent message, here need to indicate the source of this new information, the source sign can be set to indicate the source of this new information, for example, according to this new information and corresponding subsequent message and the professional relation that triggers message: whether be arranged in same session or be not positioned at same communication, corresponding source sign is set; In the present embodiment, the Origination of new information is set to SameCallWithInvokingMessage, represents the message call of this BYE message and AS2, and promptly professional triggering message INVITE belongs to same communication process.

In step 202, the preliminary treatment descriptor that recording step 201 is resulting, and send INVITE, i.e. initial call AS2 to AS2.

In step 203, malloc failure malloc according to subsequent message received in the process of service execution, current sessions state and Service Control Unit, the preliminary treatment descriptor that contrast is write down, judge whether pre-trigger condition satisfies, when pre-trigger condition satisfied, corresponding pretreatment mode was handled current communication in the use preliminary treatment descriptor.

In this step, when user's session status migration is the terminal no response, this session status and the pre-trigger condition that is write down are mated, and the match is successful, uses in the preliminary treatment descriptor and handle the application corresponding server with the corresponding pretreatment mode of this pre-trigger condition.In the present embodiment, obtain corresponding pretreatment mode for sending message according to session status and preliminary treatment descriptor, specified message name is BYE, send SIP BYE message to AS2, make AS2 withdraw from current communication, be replying of AS2 process user terminal, as long as session status is user's no response, AS2 just withdraws from current communication.

As seen from the above-described embodiment, the disposition that present embodiment may occur in process of service execution according to the application server AS 2 that is called in advance is provided with and the corresponding preliminary treatment descriptor of AS2 in service filtering rule two; Then, trigger message INVITE according to business and carry out service filtering rule two, obtain corresponding preliminary treatment descriptor with AS2; In process of service execution after this, according to determined preliminary treatment descriptor, handle AS2, thereby realized adjusting as required the signaling paths of the Service Control Unit that is called, solved service interaction and collision problem.

In the above-described embodiments, provided the Service Control Unit controlled example in same communication process that is called, be that described initial call and pre-trigger condition are under the user is in situation in the same communication process, to the relevant treatment of the Service Control Unit that is called.In actual applications, the initial call and the pre-described processing of trigger condition of Service Control Unit of being called also can be the relevant treatment of user in the different communication process, for example, the Service Control Unit that is called has been in the communication process, when the user initiates or receives another communication, to cause the adjustment of the Service Control Unit that is called, will being introduced how implementing the present invention under these situations among the embodiment three below.

Embodiment three:

In the present embodiment, suppose to receive a SIP INVITE1 message, called Internet Protocol Television (IPTV) AS, provide IPTV service to the user; Thereafter, when the user received an incoming call calling SIP INVITE2 message, IPTV AS should suspend to user's displaying video Streaming Media, so that the user can accept this new incoming call calling, and set up conversation with the calling party of new incoming call calling; After this, when this new incoming call calling was released, IPTVAS should recover to user's displaying video Streaming Media.Therefore, have two communication processs in the present embodiment, one be the user with IPTV between communicate by letter, another be the user with new incoming call calling calling party between communicating by letter.

When receiving a new incoming call calling the user, realize that IPTV AS is out of service, and when being released, new incoming call calling realizes that IPTV AS recovers service, adopt the mode that existing iFC is expanded in the present embodiment, at the service filtering rule of INVITE1 message, be provided with and the corresponding preliminary treatment descriptor of IPTV AS in advance.For simplicity, only list the relevant preliminary treatment descriptor segment of being called with present embodiment in the complete service filtering rule of IPTVAS below:

<MessageName>INVITE</MessageName>

<Origination>DifferentCall</Origination>

</PreTriggerMessage>

<Mode>SameMessage</Mode>

</PreHandlingMode>

</PreTriggerMessage>

<Mode>SameMessage</Mode>

</PreHandlingMode>

</Pretreatment>

For convenience of description, in the present embodiment above-mentioned preliminary treatment descriptor segment is called preliminary treatment descriptor three.Below to the explanation of service control cell preprocessing method in the present embodiment, also describe emphatically and the relevant part of this preliminary treatment descriptor segment.

In step 201, trigger message INVITE1 according to business, carry out service filtering rule, determine to be called application server and corresponding preliminary treatment descriptor thereof.

According to after the business triggering message INVITE1 execution service filtering rule, obtain corresponding preliminary treatment descriptor in this step with IPTVAS, shown in preliminary treatment descriptor three:

Wherein, first＜Pretreatment and＜/Pretreatment between content at the preliminary treatment descriptor of new incoming call calling: MessageName is set to INVITE, Origination is set to Different Call, represents that pre-trigger condition is the INVITE that comes from different communication; Mode is set to SameMessage, and the expression pretreatment mode is for sending the subsequent message in the pre-trigger condition to IPTVAS, and promptly therefore the INVITE of new incoming call calling does not need setup message title more here;

Second＜Pretreatment〉and＜/Pretreatment between content for to be set to BYE message at the d/d preliminary treatment descriptor of incoming call calling: MessageName, represent that pre-trigger condition is a BYE message; Mode is set to SameMessage, and the expression pretreatment mode is to send BYE message to IPTVAS, and promptly specified transmission message is subsequent message in the pre-trigger condition in the pretreatment mode.

Similar with preliminary treatment descriptor at new incoming call calling, in d/d preliminary treatment descriptor, can indicate the source of subsequent message BYE equally at the incoming call calling.The ad-hoc location that subsequent message can be placed service filtering rule is to indicate informed source, and for this reason, present embodiment provides two kinds of modes that indicate informed source:

First kind of mode is the same sublayer that the subsequent message that will have identical source places the preliminary treatment descriptor, and determine the source of each subsequent message with the precedence of each subsequent message in the preliminary treatment descriptor, be subsequent message promptly in preceding message in back message, also promptly the back message with have identical source in preceding message, therefore, need not to indicate informed source in back message with the source sign; Shown in preliminary treatment descriptor three, to be arranged on same＜Pretreatment to the preliminary treatment descriptor of BYE message with to the preliminary treatment descriptor of INVITE〉and＜/Pretreatment〉between, and the preliminary treatment descriptor of BYE message placed after the preliminary treatment descriptor of INVITE, to represent that this BYE message is to be positioned at INVITE subsequent voice calls afterwards to set up message, the source that therefore only need indicate INVITE gets final product;

The second way is that preliminary treatment descriptor with a subsequent message is as sub-preliminary treatment descriptor, in the nested preliminary treatment descriptor that is arranged on another subsequent message, showing that the former is the latter and handles subsequent message after the current communication by its pretreatment mode, and in sub-preliminary treatment descriptor, indicate the source of corresponding subsequent message; Preliminary treatment descriptor according to IPTV AS in the present embodiment of second way setting is as follows:

<MessageName>INVITE</MessageName>

<Origination>DifferentCall</Origination>

</PreTriggerMessage>

<Mode>SameMessage</Mode>

</PreHandlingMode>

<Origination>SameCall</Origination>

</PreTriggerMessage>

<Mode>SameMessage</Mode>

</PreHandlingMode>

</SubPretreatment>

</Pretreatment>

In above-mentioned preliminary treatment descriptor, SubPretreatment represents nested sub-preliminary treatment,＜SubPretreatment〉and＜/SubPretreatment between content be the preliminary treatment descriptor of subsequent message BYE, this part content is nested to be arranged among the preliminary treatment descriptor of INVITE, is to handle subsequent message after the current communication according to the pretreatment mode of this INVITE to represent this BYE message; The Origination of BYE message is set to SameCall, represents that this subsequent message BYE is arranged in same communication with its upper level subsequent message INVITE.

In step 202, the preliminary treatment descriptor of recording step 201 resulting IPTVAS and initial call IPTVAS.

In step 203, malloc failure malloc according to subsequent message received in the process of service execution, current sessions state and Service Control Unit, the preliminary treatment descriptor that contrast is write down, judge whether pre-trigger condition satisfies, when pre-trigger condition satisfied, current communication was handled in corresponding preliminary treatment in the use preliminary treatment descriptor.

In this step, when receiving new incoming call calling INVITE2 message,, send this INVITE2 message to IPTVAS according to determined preliminary treatment descriptor; IPTVAS receives this INVITE2 message, determines that this is the incoming call calling that conversation is set up in new being used to after resolving, and then IPTVAS suspends the service to the user; After this, new incoming call calling is released, and IPTVAS receives BYE message, determines after resolving that this is the release to new incoming call calling, and then IPTV AS recovers the service to the user.

In the present embodiment, also the preliminary treatment descriptor can be set in the following manner:

Pre-trigger condition and pretreatment mode to IPTV AS are set in service filtering rule in advance, wherein, pretreatment mode at pre-trigger condition INVITE2 message is to send a new INVITE3 message to IPTV AS, and specify the content of this INVITE3 message to be: the medium direction that INVITE1 message is set up session is set to " deexcitation (inactive) ", and promptly this INVITE3 message is a re-INVITE message (re-INVITE1); Pretreatment mode at pre-trigger condition BYE message is to send an INVITE4 message to IPTV AS, and this message also is re-INVITE1 message, and its medium direction is set to " activating (active) "; And the Origination of above-mentioned INVITE3 message and INVITE4 message is set to SameDialogWithInvokingMessage, expression INVITE3 and INVITE4 and message call, promptly professional triggering message INVITE1 is arranged in same session, promptly has identical dialogue (Dialog) sign with INVITE1;

Then, trigger message INVITE1 according to business and carry out service filtering rule, obtain corresponding preliminary treatment descriptor with IPTV AS;

After this in process of service execution, when receiving INVITE2 message,, send INVITE3 message to IPTV AS according to determined preliminary treatment descriptor; IPTV AS receives this INVITE3 message, and the medium direction that INVITE1 message is set up session is set to deexcitation, does not promptly send medium to the user; When new incoming call calling is released, when promptly receiving BYE message, send INVITE4 message to IPTV AS, the medium direction that INVITE1 message is set up session is set to activate, the IPTVAS service of recovering.

More than be explanation, illustrate that below by embodiment four pretreatment mode is a specific implementation method of carrying out next bar service filtering rule the embodiment of the invention three.

Embodiment four:

In the present embodiment, suppose that the user initiates an INVITE, and INVITE require described protocol extension in the header field (Require) or in the INVITE body, described certain medium type, carry out after the service filtering rule, called a Ring Back Tone service AS that Ring Back Tone service is provided; When the Ring Back Tone service AS that is called does not support the described protocol extension of Require, will return 420 bad extended response sign indicating numbers (Bad Extension), perhaps when the medium type described in the Ring Back Tone service AS that is called does not support message body, will return 415 unsupported medium type answer codes (Unsupported Media Type).Hypothesis also has the service filtering rule at application server AS 4 in the present embodiment after calling Ring Back Tone service AS, according to prior art, AS4 only can be called when the SIP initial request, when Ring Back Tone service AS returns 420 answer codes or 415 answer codes, AS4 will can not be called, and promptly AS4 can't join in user's the call signaling path.But because Ring Back Tone service is not the necessary business in the call establishment, the user wishes that under the situation that Ring Back Tone service can not normally provide, follow-up business still can normally provide, to improve jointing-success-rate of calling.

Can not normally provide under the situation of business in order to be implemented in Ring Back Tone service AS, AS4 can be by normal call, and present embodiment is provided with preliminary treatment descriptor as follows in advance in service filtering rule:

<Origination>FromApplicationServer</Origination>

<Origination>FromApplicationServer</Origination>

</PreTriggerMessage>

<Mode>GoNextFilterCriteria</Mode>

</PreHandlingMode>

</Pretreatment>

In the above-mentioned preliminary treatment descriptor, the title of subsequent message is 420 message and 415 message in the pre-trigger condition, and Origination is set to FromApplicationServer, represents that this is the return messages of Ring Back Tone service AS of being called; And in pre-trigger condition, comprised more than one subsequent message, represented that these subsequent message have identical pretreatment mode;

In the pretreatment mode, Mode is set to GoNextFilterCriteria, and next bar service filtering rule is carried out in expression.

So, in process of service execution, when pre-trigger condition satisfies, the service filtering rule of AS4 will be performed, AS4 will join in user's the call signaling path, realized adjustment, solved service interaction and collision problem, and improved call setup efficient the signaling paths of Service Control Unit.

Usually, can use the business of Ring Back Tone service AS to trigger the service filtering rule that message INVITE carries out AS4, can certainly further specify the execution foundation of next bar service filtering rule at this.

Among the superincumbent embodiment four, with pre-trigger condition is that subsequent message, pretreatment mode are that next bar service filtering rule of execution is an example, the specific embodiment of the present invention is had been described in detail, and is that subsequent message, pretreatment mode are that the situation that stops to carry out service filtering rule is elaborated to pre-trigger condition in the following examples five.

Embodiment five:

In the present embodiment, suppose that the user initiates an INVITE, carry out after the service filtering rule, called application server AS 5; It is a urgent call that AS5 detects this calling, therefore in the INVITE that returns emergency sign is set; When running into urgent call, should stop using other business, and continue to call out to called route.For this reason, present embodiment is provided with preliminary treatment descriptor as follows in advance in service filtering rule:

<MessageName>INVITE</MessageName>

<Origination>FromApplicationServer</Origination>

<Header>Priority</Header>

<Content>urgent</Content>

</SIPHeader>

</PreTriggerMessage>

<Mode>StopNextFilterCriteria</Mode>

</PreHandlingMode>

</Pretreatment>

In the above-mentioned preliminary treatment descriptor, the title of subsequent message is an INVITE in the pre-trigger condition, and Origination is set to FromApplicationServer, represents that this is the return messages of application server AS 5 of being called; Header is set to the Priority header field, and Content is set to promptly (urgent), represents that this is a urgent call;

In the pretreatment mode, Mode is set to StopNextFilterCriteria, and expression stops to carry out service filtering rule.

Like this, in process of service execution, when pre-trigger condition satisfies, if also there is the follow-up business filtering rule after the service filtering rule of AS5, to stop to carry out the follow-up business filtering rule, and be about to follow-up business filtering rule corresponding service control unit and get rid of outside user's call signaling path; And continue to call out to called route.So, realized adjustment, solved conflicting of urgency traffic and other business, and improved call setup efficient, shortened the call proceeding time the signaling paths of Service Control Unit.

More than to have introduced pre-trigger condition by embodiment five be that subsequent message, pretreatment mode are to stop to carry out the specific embodiment of the invention that follow-up business is filtered, how during, implement to call this pretreatment mode of new Service Control Unit below by embodiment six explanation according to actual needs at the Service Control Unit malloc failure malloc.

Embodiment six:

In the present embodiment, suppose that the user initiates an INVITE, carry out after the service filtering rule, called application server AS 6; And the AS6 current state is " hurrying ", and therefore the logic control of can't managing business, returns 486 busy answer codes (Busy Here) herein, and should call call forwarding on busy (CallForwarding Busy, CFB) AS this moment.In order to realize calling CFB AS according to actual needs, the preliminary treatment descriptor that present embodiment is provided with in service filtering rule is as follows:

<Origination>FromApplicationServer</Origination>

</PreTriggerMessage>

<Mode>InvokingNewApplicationServer</Mode>

<ServerName>sip:cfb-as@ims.example.com</ServerName>

</PreHandlingMode>

</Pretreatment>

In the above-mentioned preliminary treatment descriptor, the title of subsequent message is 486 message in the pre-trigger condition, and Origination is set to FromApplicationServer, represents that this is the malloc failure malloc message of returning of application server AS 6 of being called;

In the pretreatment mode, Mode is set to InvokingNewApplicationServer, new Service Control Unit is called in expression, and the title of new business control unit is set in ServerName, for example, be set to sip:cfb-as@ims.example.com in the present embodiment, i.e. the address of CFB AS.

So, in process of service execution, when pre-trigger condition satisfies, calling will be sent to the address of CFB AS, promptly only when the trigger condition of Service Control Unit satisfies, just call this Service Control Unit, realized calling according to actual needs Service Control Unit, solved service interaction and collision problem, and improved call setup efficient, shortened the call proceeding time.

Usually, can use the business of AS6 to trigger the service filtering rule that message INVITE calls CFB AS, can certainly further specify the message call that is sent to new Service Control Unit at this.

So far, end is to the explanation of service control cell preprocessing method in the embodiment of the invention six.

In the above-described embodiments, provided in a service filtering rule embodiment of describing the preliminary treatment descriptor relevant, promptly in a service filtering rule, the Service Control Unit that is called has been carried out preliminary treatment with Service Control Unit that is called.In addition, the present invention also is supported in the service filtering rule Service Control Unit that is called more than is carried out preliminary treatment, will be introduced how implementing the present invention in this case in the following examples seven.

Embodiment seven:

In the present embodiment, suppose that IMS application server AS 1 and AS2 are called after receiving INVITE, thereafter, when called subscriber's no response, AS1 wishes to withdraw from current communication with AS2.When being implemented in called subscriber's no response, AS1 withdraws from current communication with AS2, and present embodiment is provided with service filtering rule as follows at AS1 and AS2 in advance:

<SPT>

<Method>INVITE</Method>

</SPT>

</TriggerPoint>

<ServerName>sip:as1@ims.example.com</ServerName>

<ServerName>sip:as2@ims.example.com</ServerName>

<SessionState>Terminating_NoAnswer</SessionState>

</PreTriggerSessionState>

<Mode>NewMessage</Mode>

<Origination>SameCallWithInvokingMessage</Origination>

</PreHandlingMode>

</Pretreatment>

</ApplicationServer>

In above-mentioned service filtering rule,＜ApplicationServer〉and＜/ApplicationServer between the content representation application server that is called; In the present embodiment, provided two be called application server name sip:as1@ims.example.com and sip:as2@ims.example.com, represented that this service filtering rule is all effective to these two application server AS 1 and AS2; After service filtering rule is performed, AS1 and AS2 will be called, and be general, can call AS1 and AS2 sequentially, also can indicate other method of calling in service filtering rule, as calling simultaneously etc.;

Session status in the pre-trigger condition is called no response (Terminating NoAnswer), pretreatment mode is for sending BYE message, the Origination that sends message is SameCallWithInvokingMessage, represents that this transmission message is arranged in same communication with the message call of AS1 and AS2.

Like this, in process of service execution, when the called no response of pre-trigger condition is satisfied, will it be withdrawed to be called the Service Control Unit AS1 and the AS2 transmission SIP BYE message of correspondence.

General, the specified transmission message in the pretreatment mode is all Service Control Units that are called that are sent in the current business filtering rule, certainly, also can specify the destination of this message at this, promptly mails to which Service Control Unit that is called.In the present embodiment, AS1 and AS2 are shared identical pre-trigger condition and corresponding pretreatment mode thereof in actual applications, also can be described pre-trigger condition and the corresponding pretreatment mode thereof of AS1 and AS2 respectively.

Service Control Unit can appear being called more than one in technical scheme provided by the present invention in a service filtering rule, and, can unify to describe or describe respectively to the preliminary treatment descriptor of these Service Control Units that are called.When describing pre-trigger condition, can indicate the source of subsequent message, and the be called Service Control Unit relevant with this source; Can indicate the be called Service Control Unit relevant, promptly indicate the source of Service Control Unit malloc failure malloc with certain Service Control Unit malloc failure malloc.When describing pretreatment mode, can indicate the source that sends message, and the be called Service Control Unit relevant with this source; Can indicate the purpose Service Control Unit that sends message; Can indicate the purpose Service Control Unit of refuse information; Can indicate the purpose Service Control Unit that discharges Service Control Unit; Can indicate and call Service Control Unit again, call the relevant Service Control Unit that is called in source of homogeneity Service Control Unit.

The present invention carries out pretreated mode to a plurality of Service Control Units that are called in a service filtering rule, can simplify description and execution to service filtering rule on the one hand; On the other hand, can also be combined into more preliminary treatment and use, for example, can be in a service filtering rule the combination of pre-trigger condition by Service Control Unit that difference is called, obtain multiple pretreatment mode.Concerning embodiment seven, can be all during malloc failure malloc at AS1 and AS2, pretreatment mode is set to communication and discharges, and when having only a malloc failure malloc among AS 1 and the AS2, pretreatment mode is set to carry out next bar service filtering rule.In order to realize above-mentioned processing, service filtering rule as follows can be set:

<ServerName>sip:as1@ims.example.com</ServerName>

<ServerName>sip:as2@ims.example.com</ServerName>

<Source>sip:as1@ims.example.com</Source>

<Source>sip:as2@ims.example.com</Source>

</PreTriggerInvokingFailure>

<Mode>CallRelease</Mode>

</PreHandlingMode>

</Pretreatment>

<Source>sip:as1@ims.example.com</Source>

<Source>sip:as2@ims.example.com</Source>

</PreTriggerInvokingFailure>

<Mode>GoNextFilterCriteria</Mode>

</PreHandlingMode>

</Pretreatment>

</ApplicationServer>

In above-mentioned service filtering rule, PreTriggerInvokingFailure represents that pre-trigger condition is the Service Control Unit malloc failure malloc,＜PreTriggerInvokingFailure〉and＜/PreTriggerInvokingFailure between content for having described this pre-trigger condition.

Wherein, Source represents to take place the source of Service Control Unit malloc failure malloc, has provided two source AS1 and AS2 in this example;

ConditionTypeCNF represents to adopt the condition combination of regular expression, first＜PreTriggerInvokingFailure and＜/PreTriggerInvokingFailure between content be first pre-trigger condition, the ConditionTypeCNF value is 1, the composite type of representing two source AS1 and AS2 is " with (AND) ", and promptly pre-trigger condition is AS1 and AS2 malloc failure malloc; Second＜PreTriggerInvokingFailure〉and＜/PreTriggerInvokingFailure between content be second pre-trigger condition, the ConditionTypeCNF value is 0, the composite type of representing two source AS1 and AS2 is " or (OR) ", and promptly pre-trigger condition is AS1 or AS2 malloc failure malloc;

In first pre-trigger condition, pretreatment mode is set to communication and discharges (CallRelease), and in second pre-trigger condition, pretreatment mode is set to carry out next bar service filtering rule (GoNextFilterCriteria).

Therefore, in process of service execution, when AS1 and the equal malloc failure malloc of AS2, will discharge current communication, and when one of them malloc failure malloc of AS1, AS2, will carry out next bar service filtering rule.By above-mentioned example as seen, the present invention can provide more flexible, abundant pre-trigger condition and pretreatment mode by the mode of combination.

Need to prove, combination to the pre-trigger condition of the more than one Service Control Unit that is called, can be applied in any type of service filtering rule, and be not only the Service Control Unit that is called of the participation combination shown in the above-mentioned example also be the situation of the invoked Service Control Unit in the current business filtering rule simultaneously.For example, Service Control Unit also can be the invoked Service Control Unit in other service filtering rule, as long as indicate its source.

So far, end is to the explanation of the service control cell preprocessing method of the embodiment of the invention seven.

In order to realize preliminary treatment to Service Control Unit, the invention provides a kind of Service Control Unit pretreatment unit, this device is used to carry out service filtering rule, determine to be called Service Control Unit and corresponding preliminary treatment descriptor thereof, and in process of service execution, according to the determined preliminary treatment descriptor control unit of managing business.For a device embodiment Service Control Unit pretreatment unit of the present invention is described below.

Fig. 3 is the structural representation of Service Control Unit pretreatment unit in the specific embodiment of the invention.Referring to Fig. 3, this device comprises pretreatment information acquisition module 301, pre-trigger condition matching module 302 and preprocess method Executive Module 303.

Wherein, pretreatment information acquisition module 301, be used to carry out service filtering rule, determine to comprise the preliminary treatment descriptor of pre-trigger condition and corresponding preprocess method thereof, and be used for pre-trigger condition being provided, providing preprocess method to preprocess method Executive Module 303 to pre-trigger condition matching module 302;

Pre-trigger condition matching module 302 is used in described process of service execution, judges whether the pre-trigger condition that this trigger condition and pretreatment information acquisition module 301 are provided satisfies, when pre-trigger condition satisfies, and notice preprocess method Executive Module 303;

Preprocess method Executive Module 303 is used for the notice according to pre-trigger condition matching module 302, carries out the preprocess method that pretreatment information acquisition module 301 is provided.

Below by a system embodiment, illustrate how device shown in Figure 3 is applied in the Service Control Unit pretreatment system of the present invention.Fig. 4 is the structural representation of Service Control Unit pretreatment system in the specific embodiment of the invention.Referring to Fig. 4, this system comprises service filtering rule storehouse 410, Service Control Unit pretreatment unit 420 and Service Control Unit 430, wherein, Service Control Unit pretreatment unit 420 further comprises pretreatment information acquisition module 421, pre-trigger condition matching module 422 and preprocess method Executive Module 423.

In the system shown in Figure 4, service filtering rule storehouse 410 is used to preserve or produce user's service filtering rule, and is used for providing service filtering rule to the pretreatment information acquisition module 421 of Service Control Unit pretreatment unit 420;

Pretreatment information acquisition module 421 is used to receive, also carries out the service filtering rule that comes from service filtering rule storehouse 410, and pre-trigger condition is provided, provides preprocess method to preprocess method Executive Module 423 to pre-trigger condition matching module 422; Pre-trigger condition matching module 422, be used in described process of service execution, judge whether trigger condition satisfies, when pre-trigger condition satisfies, notice preprocess method Executive Module 423 is carried out preprocess method, and Service Control Unit 430 and current communication are handled accordingly;

Service Control Unit 430 is used for the processing according to Service Control Unit pretreatment unit 420 preprocess method Executive Modules 423, and miscellaneous service logic control function is provided; Further, when in the Business Processing process, producing service filtering rule, the service filtering rule that Service Control Unit 430 is used for being produced sends to service filtering rule storehouse 410, and service filtering rule storehouse 410 is further used for receiving, also preserves the service filtering rule that comes from Service Control Unit 430.

In the system shown in Figure 4, can there be one or more service filtering rule storehouse 410, service filtering rule storehouse 410 in this system can be the independent user subscribed database, as home subscriber server (HSS, Home Subscriber Server), service filtering rule is deposited wherein as user contracting data, as the aforementioned iFC; Service filtering rule storehouse 410 in this system also can be arranged in Service Control Unit pretreatment unit 420, is present in the Service Control Unit pretreatment unit 420 as one section program or configuration data as service filtering rule; Service filtering rule storehouse 410 in this system can also be arranged in Service Control Unit 430, produces service filtering rule as Service Control Unit 430 in the Business Processing process.

In the system shown in Figure 4, Service Control Unit pretreatment unit 420 can be S-CSCF, service agent (Service Broker) or service capacity interactive managing (SCIM, the ServiceCapabilityInteraction Manager) application server etc. that define in the 3GPP IMS standard;

Service Control Unit 430 is host's execution environments of miscellaneous service, can be IMS application server, traditional intelligence net SCF entity etc.;

Interface between service filtering rule storehouse 410 and the Service Control Unit pretreatment unit 420 can be Diameter or internal interface agreement etc.; Interface between service filtering rule storehouse 410 and the Service Control Unit 430 can be Diameter or internal interface agreement etc.; Interface between Service Control Unit pretreatment unit 420 and the Service Control Unit 430 can be Session Initiation Protocol, IN service agreement (as Intelligent Network Application Protocol agreement: INAP, Intelligent Network Application Protocol), internal interface agreement etc.

The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. a service control cell preprocessing method is characterized in that, this method may further comprise the steps:

2. method according to claim 1 is characterized in that, before steps A, further comprises:

3. method according to claim 2 is characterized in that, described preliminary treatment descriptor comprises pre-trigger condition and corresponding pretreatment mode thereof;

Step B is described to be treated to accordingly: when described pre-trigger condition satisfies, carry out and the corresponding pretreatment mode of described pre-trigger condition.

4. method according to claim 3 is characterized in that, described pre-trigger condition comprises at least a in subsequent message, session status and the Service Control Unit malloc failure malloc;

Described pretreatment mode comprise send message, refuse information, again call Service Control Unit, call the homogeneity Service Control Unit, call new Service Control Unit, carry out next bar service filtering rule, stop to carry out service filtering rule, discharge Service Control Unit and the release of communicate by letter at least a.

5. method according to claim 4 is characterized in that, described subsequent message comprise the described Service Control Unit that is called be called after, in current communication all message that comprise release message before being released at least one;

Described session status comprises at least one in all process statuses of current communication;

Described Service Control Unit malloc failure malloc comprises that the described Service Control Unit that is called does not have the service logical calling failure in response and/or the described Service Control Unit that is called.

6. method according to claim 5 is characterized in that, the subsequent message in the described pre-trigger condition comprises: message name and/or the message content and/or the informed source information of any subsequent message.

7. method according to claim 4 is characterized in that, the transmission message in the described pretreatment mode is: the message that sends appointment to the described Service Control Unit that is called.

8. method according to claim 7 is characterized in that, the message of described appointment is: the message of specify message title.

9. method according to claim 8 is characterized in that, the message of described appointment is: the message of further specify message content and/or informed source.

10. method according to claim 7 is characterized in that, the message of described appointment comprises the subsequent message in the described pre-trigger condition.

11. method according to claim 4 is characterized in that, the refuse information in the described pretreatment mode is: forbid sending subsequent message in the described pre-trigger condition to the described Service Control Unit that is called.

12. method according to claim 4 is characterized in that, further describes the Service Control Unit information with the described Service Control Unit homogeneity that is called in described service filtering rule;

The described homogeneity Service Control Unit that calls is: be called during the Service Control Unit malloc failure malloc when described, send message call to described homogeneity Service Control Unit.

13. method according to claim 4 is characterized in that, further specifies the address of new business control unit in described preliminary treatment descriptor;

Describedly call new Service Control Unit and be: when described pre-trigger condition satisfies, send message call to described new business control unit.

14. method according to claim 5, it is characterized in that, when described Service Control Unit malloc failure malloc is service logical calling when failure in the Service Control Unit, the described Service Control Unit that is called further returns expression service logical calling failure.

15., it is characterized in that the described Service Control Unit that is called is: a plurality of Service Control Units according to the described method of claim 1 to 14.

16. method according to claim 15 is characterized in that, further describes described the be called Service Control Unit relevant with described Service Control Unit malloc failure malloc in described pre-trigger condition.

17. method according to claim 15, it is characterized in that, the purpose Service Control Unit of described transmission message is further described in described pretreatment mode, and/or the purpose Service Control Unit of described refuse information, and/or with the described relevant described Service Control Unit that is called in source that calls Service Control Unit again, and/or with the described relevant described Service Control Unit that is called in source that calls the homogeneity Service Control Unit, and/or the purpose Service Control Unit of described release Service Control Unit.

18. according to the described method of claim 1 to 14, it is characterized in that, further in described preliminary treatment descriptor, describe a plurality of Service Control Units that are called pre-trigger condition combination in any and with the corresponding pretreatment mode of the combination in any of described pre-trigger condition.

19., it is characterized in that the foundation of the described service filtering rule of execution in step A is: receive professional triggering message or current communication process state and move according to the arbitrary described method of claim 1 to 14.

20., it is characterized in that described Service Control Unit is internet multimedia subsystem IMS application server or traditional intelligence network service controlled function entity SCF according to the arbitrary described method of claim 1 to 14.

21. a Service Control Unit pretreatment unit is characterized in that, this device comprises: pretreatment information acquisition module and preprocess method Executive Module;

22. device according to claim 21 is characterized in that, this device also further comprises pre-trigger condition matching module;

Described preliminary treatment descriptor comprises pre-trigger condition and corresponding preprocess method thereof;

Described pre-trigger condition matching module, be used in described process of service execution, judge according to the pre-trigger condition that described pretreatment information acquisition module is provided whether described pre-trigger condition satisfies, when described pre-trigger condition satisfies, notify described preprocess method Executive Module, carry out the preprocess method that described pretreatment information acquisition module is provided.

23. a Service Control Unit pretreatment system is characterized in that, this system comprises: service filtering rule storehouse, Service Control Unit pretreatment unit and Service Control Unit;

24. system according to claim 23 is characterized in that, when in the Business Processing process, producing service filtering rule, and described Service Control Unit, the service filtering rule that is further used for being produced sends to the service filtering rule storehouse;

Described service filtering rule storehouse is further used for receiving, also preserves the service filtering rule that comes from described Service Control Unit.

25. system according to claim 23 is characterized in that, described service filtering rule storehouse is at least one;

Described service filtering rule storehouse is: the independent user-subscribed database that is provided with;

Perhaps, be arranged in the described Service Control Unit pretreatment unit, the service filtering rule in the described service filtering rule storehouse is present among the described Service Control Unit pretreatment unit as program or configuration data;

Perhaps, be arranged in the described Service Control Unit, the service filtering rule in the described service filtering rule storehouse produces in the Business Processing process.