CN100488296C - Method of call signalling processing and service processing separating in network system - Google Patents
Method of call signalling processing and service processing separating in network system Download PDFInfo
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- CN100488296C CN100488296C CNB200510034673XA CN200510034673A CN100488296C CN 100488296 C CN100488296 C CN 100488296C CN B200510034673X A CNB200510034673X A CN B200510034673XA CN 200510034673 A CN200510034673 A CN 200510034673A CN 100488296 C CN100488296 C CN 100488296C
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Abstract
This invention relates to a method for separating call signaling process and service process, in which, in an exchange center for strengthening mobile services including a call server, a TUP/ISUP module, a SIP-T module, an A interface module and a DSSI module, a signaling service interface protocol is designed between the call server and the signaling protocol process module, the call server realizes the service related to the call and supplemented service, every piece of call signaling protocol information is corresponding to an internal information structure in the interface protocol and the process module decodes the call control information in the signaling information then adds it in the structure field of the internal protocol to send it to the server in the way of internal information and codes the information from the call server to signaling protocol information to be sent to the service process module.
Description
Technical field
The present invention relates to the communications field, specifically, relate to the method that MGC (Media Gateway Controller) in NGN in the communications field (next generation network is as the WCDMA/CDMA2000/TD-SCDMA/SOFTSWITCH) system goes up call signaling and service detach.
Background technology
Along with development of internet technology, carrying, control and service detach become the trend of network development.In the system of CDMA2000, by introducing MGW (media gateway), finished separating of carrying and control, by MGW management carrying, finish by MSCe (enhancing mobile services switching centre) and to call out control, between MSCe and the MGW agreement H.248.In order to finish the foundation of interoffice carrying, MSCe has introduced SIP-T (session initiation protocol that adapts to phone).Simultaneously, for traditional PSTN (public switch telephone network) and GSM network interworkings such as (global system for mobile communicationss), kept TUP/ISUP (Telephone User Part/integrated services network User Part) agreement on the MSCe.It between MSCe and the BSC signaling protocol of A interface (CDMA2000 digital mobile cellular telecommunication net base station sub-system and core net interface).
On the Media Gateway Controller in the next generation network, realize multiple complicated service, as Call Forwarding, maintenance is called out in Call Waiting, Multi-Way Calling, IN service or the like, the signaling protocol support that these service needed are relevant.These signaling protocol processing modules, and the cooperation between they and the call server (Call Server) are finished miscellaneous service in the next generation network jointly.Because diversity of operations and complexity require to take out a kind of general-purpose interface between business and call signaling, finish the mutual of call control information, and can adapt to Added Business and agreement.
Comprise call server and signaling protocol processing module on the MSCe of CDMA 2000 systems, described call server is realized Business Processing, is also referred to as Service Processing Module.Finish basic call control, finish the Basic voice call function, finish the basic service of calling and other calling supplementary service.
The signaling protocol processing module comprises following module:
TUP/ISUP module: Signaling System 7(SS-7) Telephone User Part/ISDNYong Hubufen, the call control signalling that uses when interconnecting with public switch telephone network.
SIP-T module: the new station to station call control signalling module that adopts of CDMA2000 system.
A interface module: CDMA2000 digital mobile cellular telecommunication net base station sub-system and core net interface
DSS1 (a digital subscriber signal system) module: finish isdn user's access
Wherein, these above-mentioned modules link to each other with call server respectively.
The call business of NGN system is cooperated by above-mentioned signaling protocol processing module and Service Processing Module to be finished.How these modules cooperate, and coordinate mutually, finish call jointly and handle, and realize diversity of operations, are very complicated problems.To finish the transmission of call control information between signaling protocol module and the Service Processing Module.
On the Media Gateway Controller in next generation network, owing to will realize multiple complicated service, as Call Forwarding, maintenance is called out in Call Waiting, Multi-Way Calling, IN service or the like, the signaling protocol support that these service needed are relevant.Call out in the control if the signaling protocol processing module also participates in, will make call model very complicated, and extensibility is also bad.A kind of new business of every increase, various signaling protocol processing modules also will be done relevant change.
Summary of the invention
Technical problem to be solved by this invention provides a kind of implementation method that signaling process is separated with Business Processing in NGN system, solve signaling protocol processing module and Service Processing Module weave in the prior art, signaling protocol processing modules implement business, the problem that coupling is very strong.
Call signaling is handled the method for separating with Business Processing in the network system that the present invention proposes, described network system comprises the enhancing mobile services switching centre, described enhancing mobile services switching centre comprises call server and signaling protocol processing module, described signaling protocol processing module comprises the Telephone User Part TUP/ integrated services network User Part ISUP module that links to each other with call server respectively, session initiation protocol SIP-T module, A interface module, digital subscriber signal system DSS1 module that adapts to phone, and described method comprises:
Between call server and signaling protocol processing module, formulate a kind of signaling traffic interface protocol;
Realize various business and the supplementary services relevant by call server with calling; After the signaling protocol processing module is decoded the call control information in the signaling protocol message, add in the texture field of signaling traffic internal interface agreement, and be dealt on the call server, and will become signaling protocol message to send to the called subscriber again from the signaling traffic internal interface message coding that call server receives with the form of signaling traffic internal interface message.
The method of using the present invention to propose, professional realization all is placed on the call server, when increase and modification are professional, only does change at call server, and the change that the signaling protocol processing module is not done or only done seldom is just passable.Software module structure is also very clear, and loose coupling each other is easy to maintenance and expansion.
Description of drawings
Fig. 1 is the illustraton of model of signaling and service detach in the core net;
Fig. 2 is the message model figure of third generation mobile intra-office basic call;
Fig. 3 is the message model figure that the mobile subscriber calls out fixed-line subscriber.
Embodiment
Main points of the present invention are: the signaling protocol processing module is finished the conversion of Incoming signaling protocol message to inside story, and sends to Service Processing Module.Receive the inside story that Service Processing Module sends over simultaneously, convert signaling protocol message to, send out.The signaling protocol processing module is only finished signaling capability, and is indifferent to the specific implementation of Service Processing Module.The control and treatment of calling out all is to be finished by Service Processing Module, realized separating of signaling and business like this.Specifically,
1, on call server, realizes various business and the supplementary services relevant with calling;
2, between call server and signaling protocol processing module, formulate a kind of internal agreement, be responsible for transmitting call control information.Each signaling protocol message, all corresponding a kind of inside story structure.The purpose of using this internal agreement guarantees the independence that professional control and signaling protocol are handled in order to isolate various signaling protocols in the network and host-host protocol are relative with call model, and the expansion of interface and diversity and signaling protocol processing module are had nothing to do.
Example: the corresponding relation of signaling protocol message and inside story
3, the signaling protocol processing module is added in the texture field of internal agreement after the call control information in the signaling protocol message decoding, is dealt on the call server with the form of inside story.The signaling protocol processing module will be encoded into signaling protocol message from the inside story that call server receives.The signaling protocol processing module is only finished message conversion and distribution.
Fig. 1 is the illustraton of model of signaling of the present invention and service detach.After the signaling protocol processing module receives signaling protocol message, carry out simple treatment conversion, convert the signaling traffic interface message to, send to call server.By the content of call server according to the signaling traffic interface message, specifically handle, call out the realization of control and some other business.After handling, convert the signaling traffic interface message again to, send to the signaling protocol processing module.Send to signaling protocol message called by the signaling protocol processing module.
Fig. 2 is the call model figure of third generation mobile intra-office subscribers of the present invention, is the embodiment one of the implementation method of signaling and service detach.At first, manage the call setup message that module receives the calling subscriber, handle, convert the inside story of signaling traffic interface to and send to the calling server through the A interface protocol from the A interface.After calling server process number analysis etc. is handled, find that called is the local subscriber.Just send inside story to called call server.After called call server receives the inside story of calling server,, convert the signaling traffic interface message to, send to the A interface module at called place through handling.The A interface module converts the signaling traffic interface message to A interface signaling protocol message, sends to the called subscriber.So just finished the transmission of call control information between the 3G intra-office subscribers.From the call control information that is called into caller is the opposite direction that above-mentioned message is transmitted.Concrete message content is all handled in call server.
Fig. 3 is the embodiment two of the implementation method of signaling and service detach.Dial the processing of fixed-line subscriber for the mobile subscriber.Fixed-line subscriber corresponding protocols processing module is the TUP/ISUP protocol process module.At first, receive calling subscriber's call setup message, handle, convert the inside story of signaling traffic interface to and send to the calling server through the A interface protocol from the A interface module.After calling server process number analysis etc. is handled, find that called is fixed-line subscriber.Just send inside story to called call server.After called call server receives the inside story of calling server,, convert the signaling traffic interface message to, send to the TUP/ISUP module of fixed-line subscriber correspondence through handling.The TUP/ISUP module converts the signaling traffic interface message to TUP/ISUP interoffice signaling protocol message, sends to fixed-line subscriber.So just finished the transmission of call information between mobile subscriber and the fixed-line subscriber.Information from the fixed-line subscriber to mobile subscriber is the opposite direction that above-mentioned message is transmitted.Concrete message content is also handled in call server.
Method of calling model of the present invention has effectively solved the variety of protocol relevant information of all will managing business, and carries out the complexity of call control process.Business information is handled concentrated on call server, protocol processes is only finished message conversion, handles simply a lot, is easy to expand and maintain easily.This calling party bill model not only can be used among the MSCe of CDMA2000, also can be applied in NGN (next generation network is as the WCDMA/CDMA2000/TD-SCDMA/SOFTSWITCH) system on the MGC (Media Gateway Controller).
Claims (4)
1, call signaling is handled the method for separating with Business Processing in a kind of network system, described network system comprises the enhancing mobile services switching centre, described enhancing mobile services switching centre comprises call server and signaling protocol processing module, described signaling protocol processing module comprises the Telephone User Part TUP/ integrated services network User Part ISUP module that links to each other with call server respectively, session initiation protocol SIP-T module, A interface module, digital subscriber signal system DSS1 module that adapts to phone, it is characterized in that described method comprises:
Between call server and signaling protocol processing module, formulate a kind of signaling traffic interface protocol;
Realize various business and the supplementary services relevant by call server with calling; After the signaling protocol processing module is decoded the call control information in the signaling protocol message, be filled up in the texture field of signaling traffic internal interface agreement, and be dealt on the call server, and will become signaling protocol message to send to the called subscriber again from the signaling traffic internal interface message coding that call server receives with the form of signaling traffic internal interface message.
2, call signaling is handled the method for separating with Business Processing in the network system as claimed in claim 1, it is characterized in that described method also further comprises to be handled intra-office user's calling, is specially:
Receive calling subscriber's call setup message from the A interface module,, convert the inside story of signaling traffic interface to and send to the calling server through the A interface modules handle;
The calling server finds that called is the local subscriber after handling through number analysis; Send inside story to called call server;
After called call server receives the inside story of calling server, convert the inside story of signaling traffic interface to, send to the A interface module at called place;
The A interface module converts the inside story of signaling traffic interface to A interface signaling message, sends to the called subscriber.
3, call signaling is handled the method for separating with Business Processing in the network system as claimed in claim 1 or 2, it is characterized in that described method also further comprises the processing of the mobile subscriber being dialed fixed-line subscriber, is specially:
Receive calling subscriber's call setup message from the A interface module,, convert the inside story of signaling traffic interface to and send to the calling server through the A interface modules handle;
After the calling server was handled through number analysis, finding called was fixed-line subscriber, sent inside story to called call server;
After called call server receives the inside story of calling server, convert the inside story of signaling traffic interface to, send to the TUP/ISUP module of fixed-line subscriber correspondence;
The TUP/ISUP module converts the inside story of signaling traffic interface to TUP/ISUP interoffice signaling message, sends to fixed-line subscriber.
4, call signaling is handled the method for separating with Business Processing in the network system as claimed in claim 3, it is characterized in that described method also further comprises the processing of fixed-line subscriber being dialed the mobile subscriber, is specially:
The TUP/ISUP module receives the call setup message of fixed-line subscriber, converts the inside story of signaling traffic interface to, sends to the calling server;
After the calling server was handled through number analysis, finding called was the local subscriber, sent inside story to called call server;
After called call server receives the inside story of calling server, convert the inside story of signaling traffic interface to, send to the A interface module of local subscriber's correspondence;
The A interface module converts the inside story of signaling traffic interface to A interface signaling message, sends to the called subscriber.
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| CNB200510034673XA CN100488296C (en) | 2005-05-13 | 2005-05-13 | Method of call signalling processing and service processing separating in network system |
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| CNB200510034673XA CN100488296C (en) | 2005-05-13 | 2005-05-13 | Method of call signalling processing and service processing separating in network system |
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| CN100488296C true CN100488296C (en) | 2009-05-13 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5850391A (en) * | 1996-10-17 | 1998-12-15 | Telefonaktiebolaget L M Ericsson | Shared interworking function within a mobile telecommunications network |
| US6178337B1 (en) * | 1995-12-20 | 2001-01-23 | Qualcomm Incorporated | Wireless telecommunications system utilizing CDMA radio frequency signal modulation in conjuction with the GSM A-interface telecommunications network protocol |
| CN1527550A (en) * | 2003-03-06 | 2004-09-08 | 华为技术有限公司 | IP access method and system of phonetic service |
| CN1553669A (en) * | 2003-05-29 | 2004-12-08 | 华为技术有限公司 | Method for making application adaptable of two media gate control protocols |
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2005
- 2005-05-13 CN CNB200510034673XA patent/CN100488296C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6178337B1 (en) * | 1995-12-20 | 2001-01-23 | Qualcomm Incorporated | Wireless telecommunications system utilizing CDMA radio frequency signal modulation in conjuction with the GSM A-interface telecommunications network protocol |
| US5850391A (en) * | 1996-10-17 | 1998-12-15 | Telefonaktiebolaget L M Ericsson | Shared interworking function within a mobile telecommunications network |
| CN1527550A (en) * | 2003-03-06 | 2004-09-08 | 华为技术有限公司 | IP access method and system of phonetic service |
| CN1553669A (en) * | 2003-05-29 | 2004-12-08 | 华为技术有限公司 | Method for making application adaptable of two media gate control protocols |
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| CN1863371A (en) | 2006-11-15 |
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