CN101827457B - Method and system for retransmitting messages among different intelligent network protocols - Google Patents

Abstract

The invention discloses a method and system for forwarding messages between different intelligent network protocols, belonging to the communication field. The method includes: receiving a primitive message conforming to the ANSI TCAP standard sent by a transaction capability TC-user; utilizing the ANSI TCAP standard of the transaction processing capability part of the American National Standards Institute and the ITU-T TCAP standard of the transaction processing capability part of the International Telecommunication Union standard Correspondence of message types Convert the original language message into a message conforming to the ITU-T TCAP standard; convert the message conforming to the ITU-T TCAP standard into a message conforming to the SCCP format of the signaling connection control part and forward it to the SCCP module . The technical scheme of the invention can provide operators with great convenience in system implementation, and effectively reduce the cost and difficulty of operators' networking.

Description

Method and system for message forwarding between different intelligent network protocols

technical field

The invention relates to the communication field, in particular to a method and system for forwarding messages between different intelligent network protocols.

Background technique

In the development process of the intelligent network, due to differences in regions and technical backgrounds, under the promotion of different countries and standardization organizations, a number of different intelligent network standards were finally formed, such as the Global System for Mobile Communications (Global System Customized Applications for Mobilenetwork Enhanced Logic (CAMEL) protocol for Mobile Communications (GSM) users and Wireless Intelligent Network (Wireless Intelligent Network) for Code Division Multiple Access (CDMA) users WIN) protocol.

With the promotion of the market, GSM network and CDMA network often appear to replace or even coexist in the same area. In the face of different protocol systems, how to maximize the use of existing mature technical achievements to realize communication between different intelligent network protocols is a problem faced by communication equipment manufacturers.

Contents of the invention

In view of the fact that messages between different intelligent network protocols cannot be converted in the prior art, embodiments of the present invention provide a method and system for message conversion between different intelligent network protocols, and the specific technical solutions are as follows:

A method for message conversion between different intelligent network protocols, comprising:

Receive transaction capability TC-conform to ANSI TCAP standard primitive message sent by the user;

Utilize the correspondence between the message types of the ANSI TCAP standard of the American National Standards Institute transaction processing capability part and the ITU-T TCAP standard of the International Telecommunication Union telecommunication standard transaction processing capability part to convert the primitive message into a message conforming to the ITU-T TCAP standard ;

The message conforming to the ITU-T TCAP standard is converted into a message conforming to the SCCP format of the signaling connection control part and forwarded to the SCCP module.

Further, utilizing the correspondence of the message types of the ANSI TCAP standard and the ITU-T TCAP standard, the step of converting the primitive message into a message conforming to the ITU-T TCAP standard includes:

If the primitive message is a message containing components, the components carried in the message are analyzed, and the relevant parameters in the components are converted into messages conforming to the ITU-TTCAP standard according to their correspondence with the ITU-T TCAP standard;

If the original language message is a message without components, the original language message is directly converted into a message conforming to the ITU-T TCAP standard according to the type of the original language message.

Further, the correspondence between the message types of the ANSI TCAP standard and the ITU-T TCAP standard includes:

The one-way message of the ANSI TCAP standard corresponds to the one-way message of the ITU-T TCAP standard;

The ANSI TCAP standard allow query message and disallow query message correspond to the start message of ITU-T TCAP standard;

ANSI TCAP standard allow session message and disallow session message correspond to ITU-T TCAP standard continuation message;

The response message of the ANSI TCAP standard corresponds to the end message of the ITU-T TCAP standard;

The termination message of the ANSI TCAP standard corresponds to the termination message of the ITU-T TCAP standard.

A method for message conversion between different intelligent network protocols, comprising:

Receive the ITU-T TCAP standard primitive message sent by the SCCP module;

Utilize the correspondence of the message types of the ANSI TCAP standard and the ITU-T TCAP standard to convert the primitive message into a message conforming to the ANSI TCAP standard;

The converted message is sent to the TC-User.

Further utilizing the correspondence of the message types of the ANSI TCAP standard and the ITU-T TCAP standard, the step of converting the primitive message into a message conforming to the ANSI TCAP standard includes:

If the composition is carried in the primitive message, then the relevant parameters in the composition are converted into a message conforming to the ANSI TCAP standard according to its correspondence with the ANSITCAP standard;

If no component is carried in the primitive message, the message conforming to the ANSI TCAP standard is directly converted according to the message type.

A system for message conversion between different intelligent network protocols, including:

The receiving module is used to receive the ANSI TCAP standard primitive message sent by the transaction capability TC-user;

The conversion module is used to convert the original language message into conforming to ITU- T TCAP standard news;

The sending module is used to convert the message conforming to the ITU-T TCAP standard into a message conforming to the SCCP format of the signaling connection control part and forward it to the SCCP module.

Further, the conversion module is specifically used to analyze the components carried in the message if the primitive message is a message containing components, and convert the relevant parameters in the components according to their correspondence with the ITU-T TCAP standard into a message conforming to the ITU-T TCAP standard; if the primitive message is a message without components, the primitive message is converted directly into a message conforming to the ITU-TTCAP standard according to the type of the primitive message.

A system for message conversion between different intelligent network protocols, including:

The receiving module is used to receive the ITU-T TCAP standard primitive message sent by the SCCP module;

Conversion module, for utilizing the corresponding relation of the message type of ANSI TCAP standard and ITU-T TCAP standard, described original language message is converted into the message conforming to ANSI TCAP standard;

A sending module, configured to send the converted message to the TC-user.

Further, the conversion module is specifically used to convert the relevant parameters in the components into messages conforming to the ANSI TCAP standard according to their corresponding relationship with the ANSI TCAP standard if the original language message carries a component; if the If the above primitive message does not carry any components, it will be directly converted into a message conforming to the ANSI TCAP standard according to the message type.

The technical solution provided by the embodiment of the present invention can implement the WIN protocol application system simply and quickly on the basis of the realization of the original No. 7 signaling protocol system, and change the associated network nodes and intelligent services It is transparent and can be connected to the core network of CDMA network with multiple protocol structures at the same time. It has good compatibility, can provide operators with great convenience in system implementation, and effectively reduce the cost and difficulty of operators' networking.

Description of drawings

Fig. 1 is a flowchart of a method for message conversion between different intelligent network protocols provided by an embodiment of the present invention.

Fig. 2 is another flow chart of the method for message conversion between different intelligent network protocols provided by the embodiment of the present invention.

FIG. 3 is a schematic diagram of the position of TCAP in the protocol stack of the No. 7 signaling system.

Figure 4 is a comparison diagram of dialogue processing primitives between the ANSI TCAP standard and the ITU-T TCAP standard.

Fig. 5 is an example structural diagram of a system for message conversion between different intelligent network protocols provided by an embodiment of the present invention.

Fig. 6 is another structural diagram of a system for message conversion between different intelligent network protocols provided by an embodiment of the present invention.

Detailed ways

The embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but this example does not limit the protection scope of the present invention.

The embodiment of the present invention provides a method for message conversion between different intelligent network protocols, as shown in Figure 1, including:

101. Receive the transaction capability TC-user's primitive message that complies with the ANSI TCAP standard;

102. Using the correspondence between the message types of the ANSI TCAP standard of the American National Standards Institute transaction processing capability part and the ITU-T TCAP standard of the International Telecommunication Union telecommunication standard transaction processing capability part, the primitive message is converted into a message conforming to the ITU-T TCAP standard information;

103. Convert the message conforming to the ITU-T TCAP standard into a message conforming to the SCCP format of the signaling connection control part and forward it to the SCCP module.

Further, utilizing the correspondence between the message types of the ANSI TCAP standard and the ITU-T TCAP standard, the step of converting the primitive message into a message conforming to the ITU-T TCAP standard includes:

If the primitive message is a message containing components, the components carried in the message are analyzed, and the relevant parameters in the components are converted into messages conforming to the ITU-T TCAP standard according to their corresponding relationship with the ITU-T TCAP standard;

If the primitive message is a message without components, the primitive message is directly converted into a message conforming to the ITU-T TCAP standard according to the type of the primitive message.

The embodiment of the present invention also provides a method for message conversion between different intelligent network protocols, as shown in Figure 2, including:

201. Receive the ITU-T TCAP standard primitive message sent by the SCCP module;

202, using the correspondence between the message types of the ANSI TCAP standard and the ITU-T TCAP standard to convert the primitive message into a message conforming to the ANSI TCAP standard;

203. Send the converted message to the TC-user.

Further, utilizing the correspondence between the message types of the ANSI TCAP standard and the ITU-T TCAP standard, the step of converting the primitive message into a message conforming to the ANSI TCAP standard includes:

If the primitive message carries a component, convert the relevant parameters in the component into a message conforming to the ANSI TCAP standard according to its correspondence with the ANSITCAP standard;

If the primitive message does not carry a component, it will be directly converted into a message conforming to the ANSITCAP standard according to the message type.

The following is a detailed description of the above embodiments in conjunction with the accompanying drawings.

Through the analysis, it can be found that, in addition to the differences in the implementation of intelligent services in the protocol itself, the main difference lies in the transaction capabilities application part (Transaction Capabilities Application Part, TCAP) of the No. 7 signaling protocol stack. The WIN protocol requirements are based on the American National Standards Institute (ANSI) TCAP, while the ITU-T for ITU Telecommunications Standardization Sector (ITU-T) TCAP is adopted by most other intelligent network protocols , and their similarities and differences are shown in Figure 3.

ANSI's TCAP uses ANSI's T1.114-1996 Signaling System Number 7 (SS7)-TCAP, which is divided into seven types of dialogue messages, one-way messages (UNIDIRECTIONAL), allowing query messages (QUERY WITH PERMISSION), reply message (RESPONSE), query message not allowed (QUERY WITHOUTPERMISSION), session message allowed (CONVERSATION WITH PERMISSION), session message not allowed (CONVERSATION WITHOUT PERMISSION) and termination message (ABORT). ITU-T's TCAP uses ITU-T's Q.77x series of specifications, which are divided into five types of dialogue messages, one-way message (UNIDIRECTIONAL), start (BEGIN), end (END), continuation (CONTINUE) and termination ( ABORT).

The above differences lead to a large difference in the dialogue mechanisms of the two protocols, but the design ideas of ANSI TCAP and ITU-TTCAP are the same, that is, there are several primitives for starting a dialogue, continuing a dialogue, and ending a dialogue. The names of these primitives are different. But the effect is similar, as shown in Figure 4.

In addition, a mobile application part (Mobile Application Part, MAP) message usually contains one or more components, and the message that plays a control role may not have a component part. Although the component content is related to the application, from the perspective of the operation process, no matter what the application system is, it can always be attributed to five component types: call component (Invoke), final return result component (Return Result-Last), return error component ( Return Error), rejection component (Reject) and non-final return result component (Return Result-not Last), these five components are supported by both the ANSI TCAP standard and the ITU-T TCAP standard. In terms of processing flow, if a MAP user receives an Invoke message with incorrect content, such as a format error, it will report the error by responding to Reject; if it receives Invoke but cannot initiate or complete the operation, it will respond to Return Error; If an Invoke is received and is able to complete the operation, it will respond with a result component.

It can be seen that although there are many differences in details (such as message type encoding, component sequence label encoding, etc.), ANSI TCAP and ITU-T TCAP are equivalent in function and are located at the same level of the No. 7 signaling protocol system. They can be mapped and converted to each other, and the WIN protocol application system can be realized based on ITU-TTCAP, so the feasibility of the embodiment of the present invention is obvious.

In the embodiment of the present invention, the component sublayer (Component SubLayer, CSL) manages the components in the message, and according to the corresponding relationship shown in Figure 4, the relevant parts of different TC-primitive messages are mapped and converted according to the standard. In the normal dialogue process, if the request message issued by the TC-user (WIN) carries components, the relevant parts in the components will be decoded and translated, and re-encoded according to the requirements and format of ITU-T TCAP to construct a new The message is then handed over to the transaction sublayer (Transaction SubLayer, TSL) for processing through the TR-primitive language; for the received TR-primitive indication message, if it carries components, the components are reformatted according to the requirements and format of the ANSI TCAP standard Encode, construct the correct WIN MAP message, and send it to TC-user (WIN).

TSL controls the flow and status of the dialog according to the dialog processing TC-primitive, packs the request message sent by CSL into the signaling connection control part (Signaling Connection Control Part, SCCP) protocol format, and then uses the standard N-primitive to send the message Send to SCCP for processing; analyze the indication message sent by SCCP and analyze the content, and perform subsequent processing according to the analysis result: for normal messages, pass TR-primitives to CSL for processing, and control the state of the dialogue according to the message type ; For control or exception messages, the dialog processing logic follows the ITU-T TCAP standard.

The key point of the embodiment of the present invention is the design and realization of the TCAP part in the WIN protocol application system, must under the constant situation of keeping the interface between WIN MAP and SCCP, control the dialogue process of signaling call. In the embodiment of the present invention, the TCAP part is made up of three functional modules: component processing (TCAPCMP-TCAP Component Management&Process) module, component interface (TCAPCPI-TCAP Component Process Interface) module and transaction processing module (TCAPTP-TCAP Transaction Process) module , wherein the TCAPCMP module and the TCAPCPI module cooperate to realize the CSL function, and the TCAPTP module realizes the TSL function. way to achieve. The method for message conversion between different intelligent network protocols provided by the embodiment of the present invention is described in detail below in conjunction with FIG. 4 and FIG. 5 as follows:

The component processing module, after receiving the ANSI TCAP primitive message sent by the TC-user (WIN), analyzes the message type, and if it is a message without components (such as an ABORT message), it refers to the ITU-T TCAP standard according to the state of the dialogue The corresponding relationship with the message of the ANSI TCAP standard reconstructs the message structure and message type that conform to the ITU-T TCAP standard, that is, converts the primitive message of the ANSI TCAP standard into a message that conforms to the ITU-T TCAP standard. Send the reconstructed message to the TCAPCPI module for processing; otherwise, analyze the components carried in the message, and convert the parameters in the component, such as message type code, component sequence mark code, operation code, etc., according to its correspondence with the ITU-T TCAP standard relationship, fill it into the new ITU-T TCAP standard message structure, and send the refilled message to the TCAPCPI module for processing. After receiving the ITU-T TCAP message sent by the TCAPCPI module, if the message carries a component, convert the parameters in the component into a new message structure and message type that conform to the ANSI TCAP standard according to its corresponding relationship with the ANSI TCAP standard. That is, the ITU-T TCAP message is converted into a message that conforms to the ANSI TCAP standard. Send the new message to TC-user (WIN); otherwise, construct a message conforming to the ANSI TCAP standard structure directly according to the message type and send it to TC-user (WIN).

The component interface module sends the message sent by the TCAPCMP module to the TCAPTP module for processing through the TR-primitive language; receives the message sent by the TCAPTP module through the TR-primitive language, and sends the message content to the TCAPCMP module for processing.

The transaction processing module analyzes the message sent by the SCCP module through the N-primitive language, controls the state of the dialogue according to the type of the message and the relevant information carried, and sends the message content to the TCAPCPI module through the TR-primitive language for processing; after receiving the TCAPCPI After the module sends the message through the TR-primitive, it constructs the message into a format that meets the SCCP requirements, and sends it to the SCCP module through the N-primitive.

Taking the ABORT message as an example, the format and encoding of the request message (ANSI TCAP) sent by the TC-user is as follows:

name Encoding (hexadecimal) Package Type Identifier F6 Total TCAP Message Length 8 Transaction ID Identifier C7 Transaction ID Length 4 Responding Transaction ID (Responding Transaction ID) 01 01 00 00 User Abort Information Identifier D8 User Abort Information Length 0

Through mapping and translation, a new request message (ITU-T TCAP format) is obtained after conversion. The corresponding relationship and the final message encoding are as follows:

It can be seen that through conversion, the structure and content of the message have changed greatly, but its content and effective content have not changed or lost, so this conversion is efficient and lossless.

Based on the same inventive concept as the method, the present invention provides a system for message conversion between different intelligent network protocols, as shown in Figure 6, including:

The receiving module is used to receive the ANSI TCAP standard primitive message sent by the transaction capability TC-user;

The conversion module is used to convert the primitive message into an ITU-T-compliant TCAP standard messages;

The sending module is used to convert the message conforming to the ITU-T TCAP standard into a message conforming to the SCCP format of the signaling connection control part and forward it to the SCCP module.

Further, the conversion module is specifically used to analyze the components carried in the message if the primitive message is a message containing components, and convert the relevant parameters in the components into conforming The message of the ITU-T TCAP standard; if the primitive message is a message without components, the primitive message is directly converted into a message conforming to the ITU-T TCAP standard according to the type of the primitive message.

Based on the same inventive concept as the method, the present invention provides a system for message conversion between different intelligent network protocols, as shown in Figure 6, including:

The receiving module is used to receive the ITU-T TCAP standard primitive message sent by the SCCP module;

Conversion module, for utilizing the corresponding relation of the message type of ANSI TCAP standard and ITU-T TCAP standard, convert this primitive message into the message that conforms to ANSI TCAP standard;

A sending module, configured to send the converted message to the TC-user.

Further, the conversion module is specifically used to convert the relevant parameters in the composition into a message conforming to the ANSITCAP standard according to its corresponding relationship with the ANSI TCAP standard if the primitive message carries a component; if the primitive message If there is no component in it, it will be directly converted into a message that conforms to the ANSI TCAP standard according to the message type.

The technical solution provided by the embodiment of the present invention can unify the interfaces between the various parts in the intelligent network, without the need to modify the existing network equipment, reduce the complexity of the system, and can be implemented simply and quickly in the original No. 7 signaling protocol system On the basis, it implements the WIN protocol application system, and the change is transparent to the associated network nodes and intelligent services. It can be connected to the core network of the CDMA network with multiple protocol structures at the same time. It has good compatibility and is easier to carry out subsequent upgrades and maintenance. It provides great convenience for operators in system implementation, and effectively reduces the cost and difficulty of operators' networking.

It should be understood that the above detailed descriptions for specific implementations should not be regarded as a limitation of the protection scope of the patent of the present invention, and the protection scope of the patent of the present invention should be determined by the appended claims.

Claims (4)

1. a method for messages among different intelligent network protocols conversion, is characterized in that, comprising:

What reception transaction-capable TC-user sent meets ANSI TCAP standard primitives message;

The corresponding relation of the type of message of American National Standards Institute (ANSI) transaction capabilities part ANSI TCAP standard and International Telecommunication Union telecommunication standards transaction capabilities part ITU-T TCAP standard is utilized described primitive message to be converted to the message meeting ITU-T TCAP standard;

SCCP module is transmitted to after becoming to meet the message of SCCP SCCP form by the message conversion of the described ITU-T of meeting TCAP standard;

The step utilizing the corresponding relation of the type of message of ANSI TCAP standard and ITU-T TCAP standard described primitive message to be converted to the message meeting ITU-T TCAP standard comprises:

If described primitive message is the message containing composition, then resolve the composition carried in message, by the corresponding relation of the relevant parameter in composition according to itself and ITU-T TCAP standard, convert the message meeting ITU-TTCAP standard to;

If described primitive message is that then primitive message is converted to the message meeting ITU-T TCAP standard by the direct type according to primitive message not containing the message of composition;

The corresponding relation of the type of message of described ANSI TCAP standard and ITU-T TCAP standard comprises:

The unidirectional message of the unidirectional message corresponding ITU-T TCAP standard of ANSI TCAP standard;

The permission query messages of ANSI TCAP standard and do not allow the initiation message of query messages corresponding ITU-T TCAP standard;

The permission conversation message of ANSI TCAP standard and do not allow the continuation message of conversation message corresponding ITU-T TCAP standard;

The end of the response message corresponding ITU-T TCAP standard of ANSI TCAP standard;

The termination messages of the termination messages corresponding ITU-T TCAP standard of ANSI TCAP standard.

2. a method for messages among different intelligent network protocols conversion, is characterized in that, comprising:

Receive the ITU-T TCAP standard primitives message that SCCP module is sent;

The corresponding relation of the type of message of ANSI TCAP standard and ITU-T TCAP standard is utilized described primitive message to be converted to the message meeting ANSI TCAP standard;

The message of described conversion is sent to TC-user;

The step utilizing the corresponding relation of the type of message of ANSI TCAP standard and ITU-T TCAP standard described primitive message to be converted to the message meeting ANSI TCAP standard comprises:

If carry composition in described primitive message, then by the relevant parameter in composition, according to the corresponding relation of itself and ANSITCAP standard, convert the message meeting ANSI TCAP standard to;

If do not carry composition in described primitive message, then directly change out the message meeting ANSI TCAP standard according to type of message;

The corresponding relation of the type of message of described ANSI TCAP standard and ITU-T TCAP standard comprises:

The unidirectional message of the unidirectional message corresponding ITU-T TCAP standard of ANSI TCAP standard;

The permission query messages of ANSI TCAP standard and do not allow the initiation message of query messages corresponding ITU-T TCAP standard;

The permission conversation message of ANSI TCAP standard and do not allow the continuation message of conversation message corresponding ITU-T TCAP standard;

The end of the response message corresponding ITU-T TCAP standard of ANSI TCAP standard;

The termination messages of the termination messages corresponding ITU-T TCAP standard of ANSI TCAP standard.

3. a system for messages among different intelligent network protocols conversion, is characterized in that, comprising:

Receiver module, meets ANSI TCAP standard primitives message for what receive that transaction-capable TC-user sends;

Modular converter, described primitive message is converted to the message meeting ITU-T TCAP standard by the corresponding relation for the type of message utilizing American National Standards Institute (ANSI) transaction capabilities part ANSI TCAP standard and International Telecommunication Union telecommunication standards transaction capabilities part ITU-T TCAP standard;

Sending module, is transmitted to SCCP module after becoming to meet the message of SCCP SCCP form by the message conversion of the described ITU-T of meeting TCAP standard;

Described modular converter, if be the message containing composition specifically for described primitive message, then resolves the composition carried in message, by the corresponding relation of the relevant parameter in composition according to itself and ITU-T TCAP standard, converts the message meeting ITU-T TCAP standard to; If described primitive message is that then primitive message is converted to the message meeting ITU-T TCAP standard by the direct type according to primitive message not containing the message of composition;

The corresponding relation of the type of message of described ANSI TCAP standard and ITU-T TCAP standard comprises:

The unidirectional message of the unidirectional message corresponding ITU-T TCAP standard of ANSI TCAP standard;

The permission query messages of ANSI TCAP standard and do not allow the initiation message of query messages corresponding ITU-T TCAP standard;

The permission conversation message of ANSI TCAP standard and do not allow the continuation message of conversation message corresponding ITU-T TCAP standard;

The end of the response message corresponding ITU-T TCAP standard of ANSI TCAP standard;

The termination messages of the termination messages corresponding ITU-T TCAP standard of ANSI TCAP standard.

4. a system for messages among different intelligent network protocols conversion, is characterized in that, comprising:

Receiver module, for receiving the ITU-T TCAP standard primitives message that SCCP module is sent;

Modular converter, described primitive message is converted to the message meeting ANSI TCAP standard by the corresponding relation for the type of message utilizing ANSI TCAP standard and ITU-T TCAP standard;

Sending module, for sending to TC-user by the message of described conversion;

Described modular converter, if specifically for carrying composition in described primitive message, then by the relevant parameter in composition, according to the corresponding relation of itself and ANSI TCAP standard, converts the message meeting ANSI TCAP standard to; If do not carry composition in described primitive message, then directly change out the message meeting ANSI TCAP standard according to type of message;

The corresponding relation of the type of message of described ANSI TCAP standard and ITU-T TCAP standard comprises:

The unidirectional message of the unidirectional message corresponding ITU-T TCAP standard of ANSI TCAP standard;

The permission query messages of ANSI TCAP standard and do not allow the initiation message of query messages corresponding ITU-T TCAP standard;

The permission conversation message of ANSI TCAP standard and do not allow the continuation message of conversation message corresponding ITU-T TCAP standard;

The end of the response message corresponding ITU-T TCAP standard of ANSI TCAP standard;

The termination messages of the termination messages corresponding ITU-T TCAP standard of ANSI TCAP standard.