CN1929458B - System and method for intercommunicating messages between IP multimedia subsystem domain and circuit switching domain - Google Patents

Abstract

The invention relates to a system for intercommunicating short messages in an IP multimedia subsystem domain and a circuit switching domain, comprising: an IP multimedia subsystem domain and a circuit switching domain connected through a message gateway; The session initiation protocol message of the domain is converted into a short message point-to-point protocol message, and sent to the circuit switching domain according to the routing configuration. At the same time, the short message point-to-point protocol message from the circuit switching domain is received and converted into a session initiation protocol message. According to the routing configuration, it is sent to the IP Multimedia Subsystem domain. The invention also relates to a method for realizing intercommunication messages between the IP multimedia subsystem domain and the circuit switching domain based on the above system. The invention realizes the message intercommunication between the IP multimedia subsystem domain and the circuit switching domain, and the users of the existing network can enjoy the same service and obtain the message service with the same experience at any time and any place by using a variety of terminal equipment.

Description

System and method for intercommunicating messages between IP multimedia subsystem domain and circuit switching domain

technical field

The invention relates to a message and short message intercommunication system and a method for intercommunicating messages between an IP multimedia subsystem domain and a circuit switching domain based on the system, and belongs to the technical field of communication.

Background technique

Under the existing network environment, the short message service has brought huge profits to operators with its popularization rate and rich business methods. The current SMS service realizes the storage and forwarding of messages through the dedicated SMS platform Short Message Service Center (Short Message Service Center, hereinafter referred to as SMSC), and realizes the sending and receiving of messages between different points and applications and the intercommunication of messages between networks through the SMS gateway. .

In the IP Multimedia Subsystem (IP Multimedia Subsystem, hereinafter referred to as IMS) environment, the content of message transmission can be text, image, audio or video. The message service can be divided into two subtypes, one is the non-conversational mode, and the message is sent directly by the message method of the Session Initiation Protocol (SIP), which is called the Page-mode mode (non-conversational mode); It is a session mode. Before transmitting a message, a session must be established first, and then the message is transmitted using the Message Session Relay Protocol (MSRP for short), which is called session mode (Session-mode).

In order to realize the intercommunication of message services in the existing network environment, especially the circuit switched (Circuit Switch, hereinafter referred to as CS) domain, and the IP multimedia subsystem environment, there is no complete solution at present, and users often access the network. Restricted by the use of terminals, causing a lot of inconvenience.

Therefore, inheriting the message service on the existing network and realizing the intercommunication between the IMS network and the message service on the existing network have become issues that must be paid attention to when introducing the IMS network.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for intercommunicating messages between the IP multimedia subsystem domain and the existing network (especially the circuit switched domain), and the system for realizing this method, so that users can use A variety of terminal devices enjoy the same service and obtain message communication services with the same experience.

For this reason, the present invention provides a kind of system of IP multimedia subsystem domain and circuit switching domain intercommunication message, comprising:

IP Multimedia Subsystem Domain and Circuit Switching Domain, IP Multimedia Subsystem Domain and Circuit Switching Domain are connected through Message Gateway; Message Gateway is used to receive Session Initiation Protocol messages from IP Multimedia Subsystem Domain and convert them into Short Message Point-to-Point Protocol messages , according to the routing configuration of the message gateway, send it to the circuit switching domain, and at the same time, receive the short message point-to-point protocol message from the circuit switching domain, convert it into a session initiation protocol message, and send it to the IP multimedia subsystem according to the routing configuration of the message gateway area.

In addition, the present invention also provides a method for exchanging messages between the IP multimedia subsystem domain and the circuit switched domain based on the above system, including the following steps:

Step 1. The sending domain sends the message sent by the sending user terminal to the message gateway;

Step 2. The message gateway converts the format of the message into the message format of the target domain, and sends the message in the converted format to the target domain according to the routing configuration of the message gateway;

Step 3. The target domain sends the message in the converted format to the target user terminal.

The message intercommunication between the system domain and the circuit switching domain enables users of the existing network to enjoy the same service at any time, any place, and use a variety of terminal devices, and obtain message services with the same experience, so as to realize the true sense of next-generation IP converged network.

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

Description of drawings

Fig. 1 is a schematic structural diagram of the system of the present invention;

Fig. 2 is a flow chart of the method of the present invention;

Fig. 3 is the flowchart of the second message of the method embodiment of the present invention sent to the message gateway by the IP multimedia subsystem domain;

Fig. 4 is the flowchart of sending the short message point-to-point protocol message to the target user terminal in the circuit switched domain of the second embodiment of the method of the present invention;

Fig. 5 is the flow chart of the message sent from the IP multimedia subsystem domain to the message gateway in the third embodiment of the method of the present invention;

6 is a flow chart of sending a session initiation protocol message to a target user terminal by the IP multimedia subsystem domain in the fourth embodiment of the method of the present invention;

FIG. 7 is a flow chart of sending a session initiation protocol message to a target user terminal by the IP multimedia subsystem domain in the fifth embodiment of the method of the present invention.

Detailed ways

System embodiment one of the present invention:

As shown in FIG. 1 , it includes: an IP multimedia subsystem domain and a circuit switching domain, and the IP multimedia subsystem domain and the circuit switching domain are connected through a message gateway.

The message gateway is used to receive the session initiation protocol message from the IP multimedia subsystem domain, convert it into a short message point-to-point protocol message, send it to the circuit switching domain according to the routing configuration of the message gateway, and receive the short message from the circuit switching domain at the same time The point-to-point protocol message is converted into a session initiation protocol message, and sent to the IP multimedia subsystem domain according to the routing configuration of the message gateway.

By adding a message gateway between the IP multimedia subsystem domain and the circuit switching domain, the message format conversion between the two domains is completed, the routing function between the two domains is realized, and the connection between the IP multimedia subsystem domain and the circuit switching domain is realized SMS intercommunication between users, so that users of the existing network can enjoy the same service at any time, any place, and use a variety of terminal devices, and obtain message services with the same experience.

The inventive method implements one:

As shown in Figure 2, it specifically includes the following steps:

Step 1. The sending domain sends the message sent by the sending user terminal to the message gateway;

Step 2. The message gateway converts the format of the message into the message format of the target domain, and sends the message in the converted format to the target domain according to the routing configuration of the message gateway;

Step 3. The target domain sends the message in the converted format to the target user terminal.

The sending domain sends the received message sent by the sending user terminal to the message gateway. The message gateway converts the message format of the sending domain into the message format of the receiving domain, and sends the converted message to the target domain. Through the above steps, the intercommunication of user short messages between the IP multimedia subsystem domain and the circuit switching domain can be realized, so that users of the existing network can enjoy the same service at any time, any place, and use a variety of terminal equipment, and obtain the same Experienced message service.

Embodiment two of the method of the present invention:

On the basis of Embodiment 1 of the inventive method, in this embodiment, particularly, the sending domain is the IP Multimedia Subsystem domain, and the target domain is the Circuit Switching domain, that is, the message is sent from the IP Multimedia Subsystem domain to the Circuit Switching domain, including Follow the steps below:

Step 1, that is, the step in which the message is sent from the IP multimedia subsystem domain to the message gateway, as shown in Figure 3, specifically:

Step 1a1, the proxy call session control function unit receives the session initiation protocol message sent by the sending user terminal, and sends the session initiation protocol message to the serving call session control function unit;

Step 1a2, the service call session control function unit triggers the session initiation protocol message to the message server according to the initial filter rule;

Step 1a3, the message server sends the SIP message to the message gateway according to the configuration policy.

Step 2, that is, the process that the message gateway converts the session initiation protocol message into a short message point-to-point protocol message and sends it to the circuit switched domain, including the following steps:

Step 2a1, the message gateway converts the session initiation protocol message into a short message point-to-point protocol message;

Step 2a2, the message gateway sends the short message point-to-point protocol message to the circuit switched domain according to the routing configuration.

Short message point-to-point protocol step 3, that is, the process of sending the short message point-to-point protocol message to the target user terminal in the circuit switched domain, as shown in Figure 4, includes the following steps:

Step 3a1, the short message service center receives the short message point-to-point protocol message sent by the message gateway, and queries the home location register to obtain the mobile switching center information of the target user terminal;

Step 3a2, the short message service center sends the short message point-to-point protocol message to the mobile switching center;

Step 3a3, the mobile switching center sends the short message point-to-point protocol message to the target user terminal.

Through the above steps, it is possible to send messages from the IP Multimedia Subsystem domain to the Circuit Switching domain, so that users in the Circuit Switching domain can receive information from the IP Multimedia Subsystem domain at any time and any place by using existing terminal equipment in the Circuit Interaction Domain. news.

Embodiment three of the method of the present invention:

On the basis of Embodiment 1 of the inventive method, in this embodiment, particularly, the sending domain is the IP Multimedia Subsystem domain, and the target domain is the Circuit Switching domain, that is, the message is sent from the IP Multimedia Subsystem domain to the Circuit Switching domain, including Follow the steps below:

Step 1, that is, the step in which the message is sent from the IP multimedia subsystem domain to the message gateway, as shown in Figure 5, includes the following steps:

Step 1b1, the proxy call session control function unit receives the session initiation protocol message sent by the sending user terminal, and sends the session initiation protocol message to the serving call session control function unit;

Step 1b2, the service call session control function unit triggers the session initiation protocol message to the message server according to the initial filter rule;

Step 1b3, the message server returns the SIP message that needs to be rerouted to the service call session control function unit;

Step 1b4, the service call session control function unit performs a telephone number mapping working group query, finds that the target user terminal of the session initiation protocol message is not a user terminal in the IP multimedia subsystem domain, and the conversion of the identifier of the session initiation protocol message fails;

Step 1b5, the SCSCF unit sends the SIP message to the message gateway.

Wherein, the identifier mentioned in step 1b4 may be a Session Initiation Protocol Uniform Resource Identifier (sipURI for short).

Step 2, that is, the message gateway converts the session initiation protocol message into a short message point-to-point protocol message and performs routing configuration, and sends it to the circuit switched domain. Step 3, that is, the specific process of sending the short message point-to-point protocol message to the target user terminal The process is exactly the same as the second embodiment of the inventive method, and will not be repeated here.

The difference between this embodiment and the second embodiment of the inventive method is that in this embodiment, the session initiation protocol message is not directly sent to the message gateway by the message server, but after the service call session control function unit fails to perform the query of the telephone number mapping working group Directly send the SIP message to the message gateway unit, so that the forwarding of the SIP message is completed in the core network of the IP multimedia subsystem domain, and there is no need to make major adjustments to the message server outside the core network. Therefore, compared to Embodiment 2 of the inventive method is more suitable for implementation in an existing network.

Embodiment four of the method of the present invention:

On the basis of Embodiment 1 of the inventive method, in this embodiment, particularly, the sending domain is the circuit switching domain, and the target domain is the IP Multimedia Subsystem domain, that is, the message is sent from the circuit switching domain to the IP Multimedia Subsystem domain, including Follow the steps below:

Step 1, that is, the steps for sending the message from the circuit switched domain to the message gateway are as follows:

Step 1c1, the mobile switching center or the visitor location register receives and sends the short message point-to-point protocol message sent by the user terminal;

Step 1c2, the mobile switching center or the visitor location register sends the short message point-to-point protocol message to the short message service center;

In step 1c3, the short message service center sends the point-to-point protocol message to the message gateway according to the configuration policy.

Step 2, that is, the message gateway converts the short message point-to-point protocol message into a session initiation protocol message and performs routing configuration, and sends it to the process of the IP multimedia subsystem domain, including the following steps:

Step 2c1, the message gateway converts the short message point-to-point protocol message into a session initiation protocol message;

Step 2c2, the message gateway sends the SIP message to the message server to which the target user terminal belongs in the IP multimedia subsystem domain according to the routing configuration of the message gateway.

Step 3, that is, the IP multimedia sub-domain sends the session initiation protocol message to the process of the target user terminal, as shown in Figure 6, including the following steps:

Step 3c1, the message server receives the SIP message from the message gateway;

Step 3c2, the message server forwards the SIP message to the service call session control function unit at the home of the target user terminal;

Step 3c3, the serving call session control function unit forwards the session initiation protocol message to the proxy call session control function unit in the visited place;

Step 3c4, the proxy-call session control function unit sends the session initiation protocol message to the target user terminal.

Through the above steps, the message transmission from the circuit switching domain to the IP multimedia subsystem domain can be realized, so that users in the circuit switching domain can receive messages from the circuit interactive domain at any time and any place by using terminal equipment in the IP multimedia subsystem domain .

Embodiment five of the method of the present invention:

On the basis of Embodiment 1 of the inventive method, in this embodiment, particularly, the sending domain is the circuit switching domain, and the target domain is the IP Multimedia Subsystem domain, that is, the message is sent from the circuit switching domain to the IP Multimedia Subsystem domain, including Follow the steps below:

Step 1, that is, the step of sending the message from the circuit switched domain to the message gateway is the same as the fourth embodiment of the inventive method.

Step 2, that is, the message gateway converts the short message point-to-point protocol message into a session initiation protocol message and performs routing configuration, and sends it to the IP multimedia subsystem domain, as follows:

Step 2d1, the message gateway converts the short message point-to-point protocol message into a session initiation protocol message;

Step 2d2: The message gateway sends the SIP message to the IP Multimedia Subsystem Domain Inquiry Call Session Control Function Unit according to the routing configuration.

Step 3, that is, the process in which the IP multimedia subsystem domain sends the session initiation protocol message to the target user terminal, as shown in Figure 7, includes the following steps:

Step 3d1, querying the session control functional unit to query the home user server unit to obtain the routing information of the service call session control functional unit serving the target user terminal;

Step 3d2, the query session control function unit sends a session initiation protocol message to the service call session control function unit;

Step 3d3, the service call session control function unit triggers the message server of the target user terminal, and the message server returns a message;

Step 3d4, the serving-CSCF unit sends the SIP message to the proxy-CSCF unit;

Step 3d5, the proxy-call session control function unit sends the session initiation protocol message to the target user terminal.

The difference between this embodiment and the fourth embodiment of the inventive method is that the message gateway does not have a routing function directly to the message server, but first sends the session initiation protocol message to the query call session control function unit, and then follows the flow of the IP multimedia subsystem domain to send. The forwarding of the session initiation protocol message is completed in the core network of the IP multimedia subsystem domain, and there is no need to make major adjustments to the message server outside the core network. Therefore, compared with the fourth embodiment of the inventive method, this embodiment is more suitable for implemented in the existing network.

It should be noted that at last: above embodiment is only in order to illustrate technical scheme of the present invention and is not limited to technical scheme of the present invention, although the present invention has been described in detail with reference to above-mentioned embodiment, those of ordinary skill in the art should understand: The technical solution of the present invention can still be modified or equivalently replaced, and these modifications or replacements still do not depart from the spirit and scope of the technical solution of the present invention.

Claims (11)

1. the system that communicates news of IMS domain and circuit commutative field, comprising: IMS domain and circuit commutative field is characterized in that described IMS domain is connected by information gateway with circuit commutative field;

Described information gateway is used to receive the conversation launch protocol message from IMS domain, be converted into Short Message Peer to Peer message, routing configuration according to information gateway, be sent to circuit commutative field, simultaneously, receive Short Message Peer to Peer message, be converted into conversation launch protocol message from circuit commutative field, routing configuration according to information gateway is sent to IMS domain.

2. IMS domain and the circuit commutative field method of communicating news is characterized in that, may further comprise the steps:

The message that step 1, transmission territory will send the user terminal transmission is sent to information gateway;

Step 2, described information gateway are the message format of aiming field with the format conversion of described message, and according to the routing configuration of information gateway the message of described format transformation are sent to described aiming field;

Step 3, described aiming field are sent to target terminal user with the message of described format transformation.

3. method according to claim 2 is characterized in that, the transmission territory is an IMS domain, and aiming field is a circuit commutative field, and step 1 comprises:

Step 1a1, Proxy Call Session Control Function unit receive and send the conversation launch protocol message that user terminal sends, and described conversation launch protocol message is sent to the service call conversation control function unit;

Step 1a2, described service call conversation control function unit are triggered to message server with described conversation launch protocol message according to initial filter criteria;

Step 1a3, described message server are sent to described information gateway according to collocation strategy with described conversation launch protocol message.

4. method according to claim 2 is characterized in that, the transmission territory is an IMS domain, and aiming field is a circuit commutative field, and step 2 comprises:

Step 2a1, information gateway are converted to Short Message Peer to Peer message with described conversation launch protocol message;

Step 2a2, described information gateway are sent to described circuit commutative field according to routing configuration with described Short Message Peer to Peer message.

5. method according to claim 2 is characterized in that, the transmission territory is an IMS domain, and aiming field is a circuit commutative field, and step 3 comprises:

Step 3a1, SMS service center receive the Short Message Peer to Peer message that information gateway sends, and the inquiry attaching position register obtains mobile switching centre's information of target terminal user;

Step 3a2, described SMS service center are sent to described mobile switching centre with described Short Message Peer to Peer message;

Step 3a3, described mobile switching centre are sent to target terminal user with described Short Message Peer to Peer message.

6. method according to claim 2 is characterized in that, the transmission territory is an IMS domain, and aiming field is a circuit commutative field, and step 1 comprises:

Step 1b1, Proxy Call Session Control Function unit receive and send the conversation launch protocol message that user terminal sends, and described conversation launch protocol message is sent to the service call conversation control function unit;

Step 1b2, described service call conversation control function unit are triggered to message server with described conversation launch protocol message according to initial filter criteria;

Step 1b3, described message server return the conversation launch protocol message of needs rerouting to the service call conversation control function unit;

Step 1b4, described service call conversation control function unit carry out telephone number mappings work group polling, find described conversation launch protocol message target terminal user non-IP multi-medium subsystem domain user terminal;

Step 1b5, described service call conversation control function unit send to information gateway with described conversation launch protocol message.

7. method according to claim 2 is characterized in that, sends the territory circuit commutative field, and aiming field is an IMS domain, and step 1 comprises:

Step 1c1, mobile switching centre or VLR Visitor Location Register receive and send the Short Message Peer to Peer message that user terminal sends;

Step 1c2, described mobile switching centre or VLR Visitor Location Register send to SMS service center with described Short Message Peer to Peer message;

Step 1c3, SMS service center send to information gateway according to collocation strategy with point-to-point protocol message.

8. method according to claim 2 is characterized in that, the transmission territory is a circuit commutative field, and aiming field is an IMS domain, and step 2 comprises:

Step 2c1, information gateway are conversation launch protocol message with the Short Message Peer to Peer message conversion;

Step 2c2, described information gateway are sent to described conversation launch protocol message according to the routing configuration of information gateway the message server of IMS domain target terminal user ownership.

9. method according to claim 2 is characterized in that, the transmission territory is a circuit commutative field, and aiming field is an IMS domain, and step 3 comprises:

Step 3c1, message server receive the conversation launch protocol message from information gateway;

Step 3c2, message server are forwarded to described conversation launch protocol message the service call conversation control function unit of target terminal user ownership place;

Step 3c3, described service call conversation control function unit are transmitted to described conversation launch protocol message the Proxy Call Session Control Function unit on visit ground;

Step 3c4, described Proxy Call Session Control Function unit send to target terminal user with described conversation launch protocol message.

10. method according to claim 2 is characterized in that, the transmission territory is a circuit commutative field, and aiming field is an IMS domain, and step 2 comprises:

Step 2d1, information gateway are conversation launch protocol message with the Short Message Peer to Peer message conversion;

Step 2d2, information gateway are sent to IMS domain query call conversation control function unit according to routing configuration with described conversation launch protocol message.

11. method according to claim 2 is characterized in that, the transmission territory is a circuit commutative field, and aiming field is an IMS domain, and step 3 comprises:

Step 3d1, inquiry home subscriber server unit, inquiry session controlled function unit obtain the routing iinformation into the service call conversation control function unit of target terminal user service;

Step 3d2, described inquiry session controlled function unit send to described service call conversation control function unit with the session initialization protocol message;

Step 3d3, described service call conversation control function unit triggers are to the message server of target terminal user, message server return messages;

Step 3d4, described service call conversation control function unit send to the Proxy Call Session Control Function unit with described conversation launch protocol message;

Step 3d5, described Proxy Call Session Control Function unit send to target terminal user with described conversation launch protocol message.

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