CN101277259B - Transmission method and system for resource information, medium gateway and medium gateway controller - Google Patents

Abstract

The present invention relates to the field of communication technology, and discloses a resource information transmission method and system, a media gateway and a media gateway controller, wherein the resource information transmission method includes: the MGC sends an audit command request that needs to audit the resource information of the terminal; After the audit command is requested, the resource information of the terminal is carried in a corresponding audit command response and sent to the MGC. Using the present invention can not bind the corresponding resource information in the terminal identification, thereby reducing the system resource occupied by the transmission resource information and improving the efficiency of the system.

Description

Resource information transmission method and system, media gateway and media gateway controller

technical field

The invention relates to the field of communication technology, in particular to a resource information transmission method and system, a media gateway and a media gateway controller. the

Background technique

With the rapid development of packet networks, Media Gateway Controller (MGC) and Media Gateway (MG) have become two key components in packet networks, where MGC is responsible for call control and MG is responsible for service bearer function, thereby realizing the separation of the call control plane and the service bearer plane. The main protocol for communication between MGC and MG is gateway control protocol, such as H.248 protocol. In the H.248 protocol, various resources on the MG are represented as terminals, and the terminals are divided into physical terminals and temporary terminals. Physical terminals represent some semi-permanent physical entities, such as Time Division Multiplex (Time Division Multiplex, TDM ), etc.; temporary terminals represent some public resources released after temporary application, such as real-time transport protocol (Real-time Transport Protocol, RTP) streams, etc. the

Under the architecture where MGC and MG are separated, MGC and MG communicate specific resources to be controlled or operated through terminal identification. The resource represented by the physical terminal of the Telephone Service (POTS) port can be the third port of the second slot of the first frame on the MG hardware device, and the resource represented by a physical terminal representing a TDM channel can be It is the 4th time slot of the 3rd trunk of the 2nd trunk group of the 1st office direction of the MG. The resource represented by a temporary terminal representing the RTP flow can be the 2nd trunk on the 1st interface board. The third channel of a digital signal processing (Digital Signal Processing, DSP) chip, and so on. Therefore, although the MGC may know the nature of a certain terminal, such as whether it is a physical terminal or a temporary terminal, whether it represents a POTS port or a TDM channel, it does not know the details of the specific resources represented behind the terminal. the

In this way, when the MGC needs to know the resource information represented by a certain terminal on the MG, the operation will be very cumbersome. For example, when the MGC or other operation and maintenance systems need to know which hardware resource faults on the MG a terminal fault represents for maintenance, it is necessary to first obtain the faulty terminal ID from the MGC according to the fault alarm information, and then use the terminal ID to obtain the faulty terminal ID from the MG. The resource information represented by the terminal, such an operation process is cumbersome, which is not conducive to the improvement of system efficiency. An existing solution is to add resource information to the terminal identifier, for example, to identify the physical terminal representing the POTS port in the format of "POTS-box/slot/port". Using this method, the MGC can directly know the specific information of a terminal. resource information. the

In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: in many cases, the MGC does not need to know the resource information of the terminal, and adding specific resource information to each terminal identifier will increase the number of transmission terminals. The system resource occupied by the identification reduces the efficiency of the system; and the terminal identification that can be named by the MG in any naming scheme is bound with the resource information, which affects the composition and length of the terminal identification. Especially when the resource represented by the terminal can change dynamically, for example, when the DSP chip channel occupied by a temporary terminal representing the RTP stream changes from 1 to 2, the terminal identification needs to be changed, which will bring system Processing complexity, thereby reducing the efficiency of the system. the

Contents of the invention

The purpose of the embodiment of the present invention is to provide a resource information transmission method and system, a media gateway and a media gateway controller. By using the technical solution provided by the embodiment of the present invention, system resources occupied by transmitting terminal resource information can be reduced and system efficiency can be improved. the

The purpose of the embodiments of the present invention is achieved through the following technical solutions:

Embodiments of the present invention provide a resource information transmission method, including:

The media gateway controller MGC sends an audit command request that needs to audit the resource information of the terminal to the media gateway MG;

After receiving the audit command request, the MG sends the resource information of the terminal to the MGC in a corresponding audit command response, and the format of the resource information in the audit command response is determined by the The MGC and the MG are pre-agreed, or are pre-configured by the operation and maintenance system, or are determined by devices that need to use the resource information. the

Embodiments of the present invention provide a media gateway controller, including:

An audit command request sending unit is used to send an audit command request that needs to audit the resource information of the terminal;

An audit command response receiving unit, configured to receive an audit command response from the MG that carries resource information of the terminal, the format of the resource information in the audit command response is pre-agreed by the MGC and the MG, Either pre-configured by the O&M system, or determined by the device that needs to use the resource information; the audit command response is sent by the MG to the MGC after receiving the audit command request. the

Embodiments of the present invention provide a media gateway, including:

The audit command request receiving unit is used to receive an audit command request from the MGC that needs to audit the resource information of the terminal;

an audit command response sending unit, configured to send an audit command response carrying resource information of the terminal to the MGC after the audit command request receiving unit receives the audit command request, and the resource information is in the The format in the audit command response is pre-agreed between the MGC and the MG, or is pre-configured by the operation and maintenance system, or is determined by the device that needs to use the resource information. the

Embodiments of the present invention provide a resource information transmission system, including:

The media gateway controller includes an audit command request sending unit and an audit command response receiving unit, the audit command request sending unit is used to send to the media gateway an audit command request that needs to audit the resource information of the terminal, and the audit command response receiving unit is used to receive An audit command response carrying resource information of the terminal from the media gateway;

The media gateway is configured to send an audit command response carrying the resource information of the terminal to the media gateway controller after receiving an audit command request from the media gateway controller that needs to audit the resource information of the terminal The format of the resource information in the audit command response is pre-agreed between the MGC and the MG, or is pre-configured by an operation and maintenance system, or is determined by a device that needs to use the resource information. the

From the above technical solutions provided by the embodiments of the present invention, it can be seen that since the embodiments of the present invention need to transmit the resource information only when the resource information needs to be used, the system resources occupied by the transmission of the resource information are reduced, and the system efficiency is improved; At the same time, due to the addition of attribute parameters representing resource information, there is no need to bind the terminal identifier and resource information together, so that the terminal identifier can use any name; furthermore, because the terminal identifier and the resource information represented by the terminal are separated, when When the resource information represented by the terminal changes, there is no need to deliberately change the terminal identifier, which further reduces the complexity of system processing and improves system efficiency. the

Description of drawings

Fig. 1 is the concrete flowchart of the first embodiment of the inventive method;

Fig. 2 is the concrete flowchart of the second embodiment of the inventive method;

Fig. 3 is the structural diagram of the first embodiment of the media gateway controller of the present invention;

Fig. 4 is the structural diagram of the second embodiment of the media gateway controller of the present invention;

Fig. 5 is the structural diagram of the first embodiment of the media gateway of the present invention;

Fig. 6 is a structural diagram of the first embodiment of the system of the present invention. the

Detailed ways

In order to make the object, technical solution, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. the

Fig. 1 is the first embodiment of a kind of resource information transmission method provided by the present invention, comprises the following steps:

Step 101, MGC sends an audit command request that needs to audit terminal resource information;

In the H.248 protocol, some command parameters are defined, such as attributes, signals, events, statistics, etc.; therefore, an attribute parameter can be extended to describe the information of the resource represented by the terminal, for example, the attribute can be directly named "resource information ", so that when the MGC needs to obtain the resource information of a terminal, it only needs to send an audit command request, and carry the resource information attribute parameter in the audit command request to indicate that the audit is resource information; in practical applications, the resource information attribute parameter can be typedef as string;

In the H.248 protocol, the business-related parameters are logically aggregated into packages, so the newly expanded resource information attribute parameters can be defined in existing packages in the H.248 protocol, or in new packages. The format of the resource information in the audit command response can be pre-agreed by the MGC and the MG. For example, the MGC can determine the format and then send the format to the MG, so that the MG and the MGC can unify the format. Of course, the MGC and the MG can also according to Relevant standards or protocols require a uniform format; it can also be pre-configured by the operation and maintenance system. After the operation and maintenance system determines the format, it sends the determined format to the MGC and MG at the same time, or it can be sent to the MGC, and then the MGC forwards it to the MG. Unify the format of MGC and MG;

Step 102: After receiving the audit command request, the MG sends the resource information of the terminal in a corresponding audit command response to the MGC;

After the MG receives the audit command request, it finds that the resource information attribute is carried in the audit command request, so it knows that the MGC needs to audit the resource information of the terminal, and thus obtains the resource information represented by the terminal, because the resource information of the terminal is internal to the MG. Assigned and controlled, so the MG can easily obtain the resource information of the terminal, so in the corresponding audit command response, the resource information of the terminal is returned to the MGC as the value of the resource information attribute parameter, so that the MGC knows the resource information of the terminal , so that the MGC can perform corresponding operations according to the resource information. the

By extending an attribute parameter, it avoids binding the terminal ID and resource information together, so that the terminal ID can use any name; and the resource information needs to be transmitted only when the resource information is needed, reducing the occupation of the transmission resource information system resources, improving system efficiency; further, because the terminal identifier and the resource information represented by the terminal are separated, so when the resource information represented by the terminal changes, there is no need to change the terminal identifier, which further reduces the complexity of the system degree, improving the system efficiency. the

As shown in Figure 2, the second embodiment of the method provided by the present invention mainly includes:

Step 201, the MGC receives a request message sent from a device that needs to use resource information; the request message includes information that needs to obtain resource information of the terminal;

In practical applications, it may be a third-party device such as an operation and maintenance system that needs to know the resource information of the terminal. For example, when a certain terminal fails, the operation and maintenance system needs to know the resource information of the terminal to maintain the resource;

Step 202, the MGC sends an audit command request that needs to audit the resource information of the terminal;

Step 203. After receiving the audit command request, the MG sends the resource information of the terminal to the MGC in a corresponding audit command response;

Step 204. After receiving the audit command response from the MG, the MGC forwards the resource information of the terminal contained in the audit command response to the device that needs to use the resource information;

Because the MGC does not need to know the resource information of the terminal, after receiving the audit command response carrying the resource information of the terminal, the MGC sends the resource information to the corresponding device that needs to use the resource information, so that the device can make corresponding operation. the

Further, because the MGC does not need to use the resource information, the format of the character string of the resource information attribute parameter can be customized by the device that needs to use the resource information. The MGC does not need to know the format of the corresponding attribute parameter string, because the MGC After the value of the attribute is obtained from the MG audit, the value of the attribute is directly forwarded to the device that needs to use the resource information, and the device that needs to use the resource information analyzes and processes it, thereby improving the flexibility of using the resource information. the

For example, the format of a possible resource information attribute parameter character string is as follows: define the resource information format of a physical terminal representing a TDM channel as "<office route>/<trunk group>/<trunk>/<time Slot>", then the fourth time slot of the third trunk of the second trunk group in the first office direction is expressed as "1/2/3/4". Define the resource information format of the temporary terminal representing the RTP stream as "<interface board>|<DSP chip>|<channel>", then the third and fourth channels of the second DSP chip on the first interface board represent is "1|2|3:4". the

Fig. 3 is the first embodiment of a kind of media gateway controller provided by the present invention, mainly comprises:

An audit command request sending unit 301, configured to send an audit command request that needs to audit the resource information of the terminal;

The resource information of the terminal can be described by extending an attribute parameter, for example, the attribute can be named "resource information", so that when the MGC needs to obtain the resource information of a terminal, it only needs to send an audit command request, and in the audit command request Carrying the resource information attribute indicates that the audit is resource information;

An audit command response receiving unit 302, configured to receive an audit command response from the MG that carries resource information of the terminal; the audit command response is sent by the MG to the MGC after receiving the audit command request ;

After receiving the audit command request, the MG finds that the resource information attribute is carried in the audit command request, so it knows that the MGC needs to audit the resource information of the terminal, so it uses the resource information of the terminal as the resource information attribute in the corresponding audit command response The value of is returned to the MGC, so that the MGC knows the resource information corresponding to the terminal, so that the MGC can perform corresponding operations according to the resource information.

In practical applications, it may be that a third-party device such as an operation and maintenance system needs to obtain the resource information of the terminal. At this time, the device that needs to use the resource information needs to obtain the resource information of the terminal through the audit of the MGC. Therefore, The second embodiment of the media gateway controller provided by the present invention is shown in Figure 4, mainly including:

A resource information request receiving unit 401, configured to receive a request message sent from a device that needs to use resource information, where the request message includes information that needs to obtain resource information of the terminal;

An audit command request sending unit 402, configured to send the audit command request that needs to audit the resource information of the terminal after the resource information request receiving unit receives the request message that needs to obtain the resource information of the terminal;

An audit command response receiving unit 403, configured to receive an audit command response carrying resource information of the terminal from the MG; wherein the audit command response is sent by the MG to the MGC after receiving the audit command request of;

A resource information response sending unit 404, configured to, after the audit command response receiving unit receives the audit command response from the MG, forward the resource information of the terminal contained in the audit command response to the required user A device for resource information. the

When a third-party device needs to know the resource information of the terminal, it only needs to send the information to the MGC. After auditing the MG, the MGC can obtain the corresponding resource information and forward it to the corresponding third-party device. Information for corresponding operations. the

The first embodiment of the media gateway provided by the present invention is shown in Figure 5, mainly including:

An audit command request receiving unit 501, configured to receive an audit command request from the MGC that needs to audit terminal resource information;

An audit command response sending unit 502, configured to send an audit command response carrying resource information of the terminal to the MGC after the audit command request receiving unit receives the audit command request;

The MG finds that the resource information attribute is audited in the audit command request, so it puts the corresponding resource information in the audit command response as the value of the resource information attribute in the string format agreed in advance or configured at the same time, and sends the audit command response to the MGC , so that the MGC obtains corresponding resource information, so that the MGC can perform corresponding operations. the

Embodiments of the present invention further provide a resource information transmission system. FIG. 6 is a first embodiment of the resource information transmission system, including:

The media gateway controller 601, the media gateway controller, includes an audit command request sending unit and an audit command response receiving unit, the audit command request sending unit is used to send an audit command request that needs to audit terminal resource information to the media gateway, the The audit command response receiving unit is used to receive the audit command response carrying the resource information of the terminal from the media gateway;

The media gateway 602 is configured to send an audit command carrying resource information of the terminal to the media gateway controller after receiving an audit command request from the media gateway controller that needs to audit the resource information of the terminal response;

The media gateway controller sends an audit command request for auditing resource information to the media gateway, and the media gateway returns the corresponding resource information to the media gateway controller through the audit command response, so that the media gateway controller can perform corresponding operations. the

In practical applications, it may be that the third-party device needs to obtain the resource information corresponding to the terminal. At this time, the third-party device needs to obtain the corresponding resource information through the media gateway controller. Therefore, the media gateway controller also includes a resource information request receiver unit and resource information response sending unit, the resource information request receiving unit is used to receive a request message sent from a device that needs to use resource information, and the resource information response sending unit is used to obtain the resource information of the terminal from the media gateway Afterwards, forwarding the resource information of the terminal to the device that needs to use the resource information; wherein the request message sent by the third-party device includes information that needs to obtain the resource information of the terminal;

A third-party device, such as an operation and maintenance system, can obtain terminal resource information through the media gateway controller, so as to perform corresponding operations. the

It can be seen from the above that the embodiment of the present invention needs to transmit resource information only when resource information is needed, which reduces the system resources occupied by the transmission of resource information and improves system efficiency; at the same time, due to the addition of attribute parameters representing resource information, There is no need to bundle the terminal identifier and resource information together, so that the terminal identifier can use any name; further, because the terminal identifier and the terminal resource information are separated, there is no need to specifically update the terminal identifier when the terminal resource information changes. Changes are made to further reduce the complexity of system processing and improve system efficiency; and third-party devices such as operation and maintenance systems can obtain terminal resource information through the media gateway controller to perform corresponding operations; further, the character of resource information The string format can be determined by a third-party device that needs to use the resource information, thereby improving the flexibility of using the resource information. the

The resource information transmission method and system, the media gateway and the media gateway controller provided by the embodiments of the present invention are described above in detail, and the descriptions of the above embodiments are only used to help understand the methods and ideas of the present invention; meanwhile, for the technical field Those of ordinary skill in the art will have changes in the specific implementation and scope of application according to the idea of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (8)

1. a resource information transmission method is characterized in that, comprising:

Media gateway controller MGC needs the audit command request of the resource information at audit terminal to WMG MG transmission;

Said MG is after receiving said audit command request; The resource information at said terminal is carried in the corresponding audit command response sends to said MGC, the form of said resource information in said audit command response made an appointment by said MGC and said MG or is pre-configured or use the device of said resource information to confirm by needs by operation maintenance system.

2. resource information transmission method as claimed in claim 1 is characterized in that:

What said MGC carried in said audit command request that the property parameters of representing resource information indicates to audit is resource information;

Said MG in said audit command response with the resource information at said terminal value as said property parameters.

3. resource information transmission method as claimed in claim 1 is characterized in that, said MGC sends said audit command request and takes a step forward and comprise:

Said MGC receives the request message that uses the device of resource information to send from needs, and described request message comprises the information of the resource information that need obtain said terminal;

After said MGC obtains the resource information at said terminal from said MG, the resource information at said terminal is transmitted to the device of said this resource information of needs use.

4. a Media Gateway Controller is characterized in that, comprising:

Audit command request transmitting element is used to send the audit audit command request of resource information at terminal of needs;

Audit command response receiving element; Be used to receive the audit command response from the resource information that carries said terminal of MG, the form of said resource information in said audit command response made an appointment by said MGC and said MG or is pre-configured or use the device of said resource information to confirm by needs by operation maintenance system; Said audit command response is that said MG sends to said MGC after receiving said audit command request.

5. Media Gateway Controller as claimed in claim 4 is characterized in that, further comprises:

Resource information request receiving element is used to receive the request message that uses the device of resource information to send from needs, triggers said audit command request transmitting element and sends the said audit command request that needs the resource information at audit terminal;

Resource information response transmitting element; Be used for after audit command response receiving element receives the said audit command response from said MG, the resource information at the said terminal that comprises in the said audit command response being transmitted to the device of said needs use resource information.

6. a WMG is characterized in that, comprising:

Audit command request receiving element is used to receive the audit command request from the resource information at the needs audit terminal of MGC;

Audit command response transmitting element; Be used for after said audit command request receiving element receives said audit command request; Send the audit command response of the resource information that carries said terminal to said MGC, the form of said resource information in said audit command response made an appointment by said MGC and said MG or is pre-configured or use the device of said resource information to confirm by needs by operation maintenance system.

7. a resource information transmission system is characterized in that, comprising:

Media Gateway Controller; Comprise audit command request transmitting element and audit command response receiving element; This audit command request transmitting element is used for sending to WMG the audit command request of the resource information at needs audit terminal, and this audit command response receiving element is used to receive the audit command response from the resource information that carries said terminal of said WMG;

WMG; Be used for after the audit command request of the resource information that receives the said terminal of auditing from the needs of said Media Gateway Controller; Send the audit command response of the resource information that carries said terminal to said Media Gateway Controller, the form of said resource information in said audit command response made an appointment by said MGC and said MG or is pre-configured or use the device of said resource information to confirm by needs by operation maintenance system.

8. resource information transmission system as claimed in claim 7; It is characterized in that; Said Media Gateway Controller also comprises resource information request receiving element and resource information response transmitting element; This resource information request receiving element is used to receive the request message that uses the device of resource information to send from needs; This resource information response transmitting element is used for after obtaining the resource information at said terminal from said WMG, the resource information at said terminal is transmitted to the device of said needs use resource information.

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