CN100531410C - Cross-service control point call forwarding method - Google Patents
Cross-service control point call forwarding method Download PDFInfo
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- CN100531410C CN100531410C CNB2005100598073A CN200510059807A CN100531410C CN 100531410 C CN100531410 C CN 100531410C CN B2005100598073 A CNB2005100598073 A CN B2005100598073A CN 200510059807 A CN200510059807 A CN 200510059807A CN 100531410 C CN100531410 C CN 100531410C
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Abstract
The invention relates to a cross business control point calling transfer method which mainly comprises: the business control point receives the calling trigger message of the business exchange point; the business control point transfers the calling trigger message to other business control points; other business control point receives the calling trigger message and directly dose business exchange points communication to process the calling.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of cross-service control point (SCP) call transferring method.
Background technology
Along with networking and professional development, the technology of intelligent network has been applied to a plurality of fields more and more widely, and integrated intelligent network can provide professional for each professional networking.It not only can be fixed network, mobile GSM (global system for mobile communications) net, CDMA (code division multiple access) net, the service of IP (Internet Protocol) net, can also be easily for the user provides miscellaneous service, as all-purpose card business, synthesis VPN (Virtual Private Network) business, prepayment service, business of networking etc.
Intelligent network is made up of SSP (Service Switching Point), SCP (service control point), SDP (service data point), SMS (business management system).
The major function of SSP comprises: be responsible for identification and calling procedure control that IN service is called out, with call handling process reporting events SCP, handle the call treatment instruction from SCP, be responsible for the foundation and the dismounting of conversing between the calling party, to the calling processing of chargeing.Communication protocol between SSP and the IP is based on the Signaling System Number 7 net.
SCP is the control centre of intelligent network business, is responsible for the execution of service logic, and call-handling capability is provided.Its major function comprises: start different service logics according to the call event of offering on the SSP, send the calling control command according to service logic to SSP, thereby realize various intelligent calls, the charge information that reception SSP reports carries out real time billing and generates ticket.
SCP Internal call transfer party ratio juris is an example with CAP (mobile network strengthens the logic custom applying portion) agreement as shown in Figure 1 in the central intelligent network of prior art, and its cardinal principle is:
SCP is after receiving the InitiaIDP of CAMEL Application Part (triggering message), trigger an IN service example preliminary treatment is carried out in calling, determine to continue calling is handled according to the CID among the InitiaIDP (Call Instance Data) by this service logic example, still being transferred to other service logic example handles calling, handle by other service logic example if desired, then the instance data with this calling carries out the pop down preservation, finish current business logical process flow process and remove the current business logic execution environment, search new service logic example, and new service logic example is loaded into service logic execution environment, eject the Call Instance Data of preserving, by new service logic example this calling is handled, until end.
With the CAMEL Application Part is example, and the concrete handling process of intelligent network SCP Internal call transfer method comprises the steps: as shown in Figure 2 in the middle of the described prior art
Step 2-1: the inner SSP of intelligent network has begun this call flows to the InitiaIDP message that SCP transmits CAMEL Application Part.
Step 2-2:SCP receives SSP after the InitiaIDP of the CAMEL Application Part of its transmission message, triggers this service logic example preliminary treatment is carried out in this calling.
Step 2-3: this service logic example of described triggering judges it is to be continued this calling is handled by this service logic example according to the CID (Call Instance Data) of this calling, still being transferred to other service logic example handles this calling, handle by other service logic example if desired, then execution in step 2-5; Otherwise, execution in step 2-4.
Step 2-4: this service logic example by described triggering continues this calling is handled, up to this end of calling.
Step 2-5: come this calling is handled by other service logic example if desired, then the instance data of this calling is preserved.
Step 2-6: after the instance data of this calling is preserved, finish the handling process of this service logic example of described triggering, and remove the current business logic execution environment.
Step 2-7: at the new service logic example of current SCP internal searching, and the new service logic example that will find is loaded into the current business logic execution environment.
Step 2-8: after new service logic example is loaded into the current business logic execution environment, eject the instance data of this calling of preserving.
Step 2-9: the new service logic example by described loading is handled this calling, up to this end of calling.
The shortcoming of SCP Internal call transfer method is in the central intelligent network of described prior art:
1, can only can't realize striding the SCP calling transfer in the inner calling transfer that realizes of same SCP;
2, all service logic examples must be installed in same the machine, and the professional degree of coupling is big, and the upgrading of a service logic example may cause the interlock upgrading of other service logic examples, the cost height of system development and maintenance.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of cross-service control point call forwarding method, thereby can reduce intelligent network business development and Design cost, reduce intelligent net system upgrading difficulty, reduce the intelligent net system maintenance cost.
The objective of the invention is to be achieved through the following technical solutions:
A kind of cross-service control point call forwarding method comprises:
A, service control point receive that the calling that Service Switching Point reports triggers message; Comprise: A1, described service control point are received after described calling triggers message and are triggered the service logic example; A2, when the Call Instance Data of described business of triggering logical instance according to this calling, when determining to handle to other service control point this calling transfer, execution in step B then;
B, described service control point trigger forwards with described calling and give other service control point that need handle this calling;
C, described other service control point directly carry out alternately this calling being handled with described Service Switching Point after receiving that described calling triggers message.
Described steps A 2 also comprises:
A21, when the Call Instance Data of described business of triggering logical instance according to this calling, not need to determine to handle to other service control point this calling transfer, then execution in step A22;
A22, continue this calling is handled by described business of triggering logical instance, up to this end of calling.
Described steps A 22 further comprises:
Described service control point can continue by institute's business of triggering logical instance calling to be handled, and also can dispose described business of triggering logical instance, searches and loads new service logic example this calling is handled, up to this end of calling.
Described Call Instance Data comprises number, positional information, the calling time-zone information of calling and called side.
Described step B further comprises:
After described service control point triggers described calling forwards and gives other service control point that need handle this calling, described service control point is disposed its business of triggering logical instance, and described service control point stops the processing to this calling.
Described step C further comprises:
C1, described other service control point trigger new service logic example after receiving that described calling triggers message;
The new service logic example that C2, described other service control point trigger directly carries out this calling being handled, up to this end of calling alternately with described Service Switching Point.
Described step C2 further comprises:
Described other service control point can continue to continue to handle calling by the new service logic example that is triggered, also can dispose the new service logic example of described triggering, search and load other service logic example this calling is handled, up to this end of calling.
It is the network entity of signaling network that described method is suitable for the Signaling System Number 7 net.
Described network entity can for:
Public switched telephone network PSTN intelligent network or global system for mobile communications GSM intelligent network or Wideband Code Division Multiple Access (WCDMA) WCDMA intelligent network.
As seen from the above technical solution provided by the invention, the present invention compares with prior art, has following advantage: the present invention is based on TCAP (TCAP Transaction Capability Application Part) standard in the Signaling System Number 7 net of standard, be not subject to any proprietary protocol that may exist in the existing communication network, therefore, need not to transform conventional network equipment, just can realize striding in the intelligent network the professional transfer of SCP, significantly reduced intelligent network business development and Design cost; The business configuration that can distribute among the present invention, separate between the service operation environment, the professional degree of coupling is low, can not cause professional interlock upgrading, therefore, can reduce intelligent net system upgrading difficulty, reduces the intelligent net system maintenance cost; The present invention is applied widely, and going for all is the network entity of signaling network with the Signaling System Number 7 net, comprising PSTN (public switched telephone network) intelligent network or GSM (global system for mobile communications) intelligent network or WCDMA (Wideband Code Division Multiple Access (WCDMA)) intelligent network.
Description of drawings
Fig. 1 is the schematic diagram of SCP Internal call transfer method in the intelligent network in the prior art;
Fig. 2 is the concrete process chart of SCP Internal call transfer method in the intelligent network in the prior art;
Fig. 3 is the schematic diagram of the method for the invention;
Fig. 4 is the concrete process chart of the method for the invention.
Embodiment
The invention provides a kind of cross-service control point call forwarding method.Core of the present invention is: the present invention is based on the TCAP standard in the Signaling System Number 7 net of standard, thereby can not be subject to any proprietary protocol that may exist in the existing communication network.
SS7 (Signaling System Number 7 net) is one of three big supporting networks of telecommunications network, is the important component part of telecommunications network, and its application is very extensive, and PSTN (public switched telephone network), GSM, WCDMA (Wideband Code Division Multiple Access (WCDMA)) etc. are that employing SS7 is a signaling network.TCAP is the upper-layer protocol of SS7, is used to support the application based on transaction.
TCAP regulation and stipulation in the Signaling System Number 7 net: two TC (transaction)-user (A, B) suppose user A for starting the affairs side when communicating by TCAP, and user B is for accepting the affairs side.User B can change the address of oneself to user A loopback confirm primitive the time, user A is behind the confirm primitive of receiving user B, with the destination address of the address after the use user B change as these affairs.
Describe the method for the invention in detail below in conjunction with accompanying drawing, the principle of the method for the invention as shown in Figure 3.With the CAMEL Application Part is example, its cardinal principle is: after SSP sends to SCP1 to the InitaIDP of CAMEL Application Part, SCP1 triggers a service logic and carries out the handling process of this service logic, this calling is handled, if SCP1 is when carrying out the handling process of business of triggering logic, find that this calling need transfer to SCP2 and go up handle, SCP1 gives SCP2 the InitiaIDP forwards, and after this SCP1 terminated call is handled.After SCP2 receives the InitaIDP that SCP1 forwards, the service logic of triggered response, and carry out the handling process of the service logic of response, after this call treatment is fully by SCP2 control, SCP2 directly and SSP carry out alternately, up to this end of calling.
With the CAMEL Application Part is example, and the method for the invention specifically comprises the steps:
Step 4-1: the inner SSP of intelligent network has begun this call flows to the InitiaIDP message that SCP1 transmits CAMEL Application Part.
Step 4-2:SCP1 receives that SSP after the InitiaIDP of the CAMEL Application Part of its transmission message, triggers this service logic example, and carries out the handling process of this service logic, and preliminary treatment is carried out in this calling.
Step 4-3:SCP1 is when the handling process of this service logic example of carrying out its triggering, CID (Call Instance Data) according to this calling judges it is to be continued this calling is handled by this service logic example, still need handle this calling by other service control point, handle by other service control point if desired, then execution in step 4-5; Otherwise, execution in step 4-4.
Step 4-4:SCP1 continues the handling process of this service logic example of the described triggering of execution, continues this calling is handled, up to this end of calling.
Step 4-5: come this calling is handled by other service control point if desired, suppose that this other service control point is SCP2, then SCP1 gives SCP2 with the InitiaIDP forwards, and SCP1 finishes the handling process of this service logic example of described triggering, stops this calling is handled.
Step 4-6:SCP2 triggers new service logic example in SCP2 after receiving the InitiaIDP message that SCP1 transmits.
Step 4-7:SCP2 carries out the handling process of the new service logic example of described triggering, and this calling is handled.SCP2 directly sends call treatment instruction to SSP, and SSP receives SCP2 after its call treatment of sending instruction, according to described TCAP standard, with the destination address of SCP2 as this calling, afterwards, SSP directly and SCP2 carry out alternately, up to this end of calling.
The present invention adopts the TCAP standard of the ITU-T (International Telecommunications Union-telecommunication standardization sector) of standard, can in PSTN, GSM, WCDAM intelligent network, realize striding the professional transfer of SCP, promoting it, is that other network entities adopt similar scheme to realize identical or similar purpose in the communication network of signaling network applicable to employing SS7 such as PSTN, GSM, WCDMA also.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (9)
1, a kind of cross-service control point call forwarding method is characterized in that, comprising:
A, service control point receive that the calling that Service Switching Point reports triggers message; Comprise: A1, described service control point are received after described calling triggers message and are triggered the service logic example; A2, when the Call Instance Data of described business of triggering logical instance according to this calling, when determining to handle to other service control point this calling transfer, execution in step B then;
B, described service control point trigger forwards with described calling and give other service control point that need handle this calling;
C, described other service control point directly carry out alternately this calling being handled with described Service Switching Point after receiving that described calling triggers message.
According to the described cross-service control point call forwarding method of claim 1, it is characterized in that 2, described steps A 2 also comprises:
A21, when the Call Instance Data of described business of triggering logical instance according to this calling, not need to determine to handle to other service control point this calling transfer, then execution in step A22;
A22, continue this calling is handled by described business of triggering logical instance, up to this end of calling.
According to the described cross-service control point call forwarding method of claim 2, it is characterized in that 3, described steps A 22 further comprises:
Described service control point can continue by institute's business of triggering logical instance calling to be handled, and also can dispose described business of triggering logical instance, searches and loads new service logic example this calling is handled, up to this end of calling.
According to claim 1 or 2 described cross-service control point call forwarding methods, it is characterized in that 4, described Call Instance Data comprises number, positional information, the calling time-zone information of calling and called side.
According to the described cross-service control point call forwarding method of claim 1, it is characterized in that 5, described step B further comprises:
After described service control point triggers described calling forwards and gives other service control point that need handle this calling, described service control point is disposed its business of triggering logical instance, and described service control point stops the processing to this calling.
According to the described cross-service control point call forwarding method of claim 1, it is characterized in that 6, described step C further comprises:
C1, described other service control point trigger new service logic example after receiving that described calling triggers message;
The new service logic example that C2, described other service control point trigger directly carries out this calling being handled, up to this end of calling alternately with described Service Switching Point.
According to the described cross-service control point call forwarding method of claim 6, it is characterized in that 7, described step C2 further comprises:
Described other service control point can continue to continue to handle calling by the new service logic example that is triggered, also can dispose the new service logic example of described triggering, search and load other service logic example this calling is handled, up to this end of calling.
According to claim 1,5 or 6 described cross-service control point call forwarding methods, it is characterized in that 8, it is the network entity of signaling network that described method is suitable for the Signaling System Number 7 net.
9, described according to Claim 8 cross-service control point call forwarding method is characterized in that, described network entity can for:
Public switched telephone network PSTN intelligent network or global system for mobile communications GSM intelligent network or Wideband Code Division Multiple Access (WCDMA) WCDMA intelligent network.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100598073A CN100531410C (en) | 2005-03-31 | 2005-03-31 | Cross-service control point call forwarding method |
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| CNB2005100598073A CN100531410C (en) | 2005-03-31 | 2005-03-31 | Cross-service control point call forwarding method |
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| CN1842170A CN1842170A (en) | 2006-10-04 |
| CN100531410C true CN100531410C (en) | 2009-08-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1997166B (en) * | 2006-12-21 | 2010-12-01 | 中国电信股份有限公司 | Replay device, method and system of smart network signaling |
| CN101159972B (en) * | 2007-09-12 | 2011-04-20 | 华为技术有限公司 | Traffic processing method and system and traffic control point |
| CN101707655B (en) * | 2009-09-16 | 2012-05-09 | 深圳市震有科技有限公司 | Universal method for realizing service nesting by adopting virtual call agents |
| CN102421078B (en) * | 2011-11-24 | 2014-01-22 | 杭州东信北邮信息技术有限公司 | Dynamic handover method and system on basis of service broker |
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