CN1855914A - Method for media gateway controller obtaining ability - Google Patents

Abstract

A method that the ability of getting media gateway by the media gateway controller, which uses to control the communication system and the loading separating technology. That is: the media gateway controller sends the auditing ability order to get the current supportable ability collection of the media gateway after the media gateway login successful in the media gateway, the media gateway controller get the renewing ability collection of the media gateway when the ability of the media gateway changes and impart the media gateway controller by the service changing order. The invention is that the media gateway controller can get the ability collection of the media gateway accurately, the media gateway controller can judge the ability of the media gateway accurately in the call, avoid the unnecessary calling loss.

Description

A method for media gateway controller to obtain media gateway capability

technical field

The invention relates to the control and bearer separation technology of the communication system, in particular to the H.248 protocol and the MEGACO protocol.

Background technique

With the increasingly wide application of communication systems in various fields such as economy and social life, communication system technology itself is also developing rapidly. Whether it is the transformation of the current fixed network or the mature and perfect third-generation mobile communication system, technology The development of the Internet is increasingly meeting the needs of users for communication systems. At present, the industry generally agrees that the next-generation communication system will be a network in which control and bearer are separated. Its basic feature is to separate the traditional control and call centralized equipment into MGC (Media Gateway Controller, Media Gateway Controller) and MGW ( Media Gateway, media gateway) two parts, in which the MGC can complete the control of the MGW through the H.248/MEGACO protocol, and implement basic calls and new services. The H.248/MEGACO protocol has been widely adopted by standard organizations such as ITU/IETF/3GPP/3GPP2.

In the existing control and bearer separation technology of the communication system, the MGW and MGC are often set in different places. Currently, the capabilities of the MGW are generally statically configured only by data. When the capabilities of the MGW change, the MGC cannot obtain the changes in a timely and accurate manner. In this way, there will be errors in the judgment of the MGC on the capability of the MGW, so that there will be some unnecessary call loss when the call processing involves capability negotiation. In the entire network, due to the large number of MGCs and MGWs, this problem is more prominent.

Contents of the invention

The purpose of the present invention is to provide a method for the media gateway controller to obtain the media gateway capability, so as to overcome the defect in the prior art that the MGC cannot obtain the capability of the MGW in time and accurately, resulting in unnecessary call loss.

To achieve the above object, the present invention adopts the following technical solutions:

A method for the media gateway controller to obtain the media gateway capability. After the media gateway is successfully registered on the media gateway controller, the media gateway controller sends an audit capability command to obtain the currently supported capability set of the media gateway. When the media gateway capability occurs When changing, the media gateway controller is notified through the service change command, so that the media gateway controller can obtain the updated capability set of the media gateway.

Further, a method for a media gateway controller to obtain a media gateway capability specifically includes the following steps:

Step 1: After the media gateway is powered on, the media gateway controller initiates a service change registration command to the media gateway controller, and the media gateway controller sends a registration success response message to the media gateway after confirming that the registration of the media gateway is successful;

Step 2: The media gateway controller sends an audit capability command to the media gateway, requesting to obtain the capability set of the media gateway, and after receiving the response message from the media gateway, the media gateway controller obtains the initial capability set of the media gateway;

Step 3: After the capability set of the media gateway is updated and changed, the media gateway sends a service change command to the media gateway controller, and reports the updated capability set to the media gateway controller, and the media gateway controller obtains the updated capability set of the media gateway. Send the updated capability set to the media gateway during the call.

The method of the invention enables the media gateway controller to obtain the capability set of the media gateway accurately and timely by using the command of service change and audit ability, and then the media gateway controller can accurately judge the capability of the media gateway during the call, thereby avoiding unnecessary call loss.

Description of drawings

Fig. 1 is a flowchart of a method embodiment of the present invention.

Detailed ways

The specific implementation of the technical solution will be described in detail below in conjunction with the accompanying drawings.

Fig. 1 is a flow chart of the method embodiment of the present invention, which describes the process of using the H.248/MEGACO protocol command to make the media gateway controller obtain the media gateway capability set. After the media gateway MGW is successfully registered on the media gateway controller MGC, the MGC can send the audit capability (AuditCapability) command to obtain the capability set that the MGW can support, and when the capability of the MGW changes, it will notify the MGC through the service change (ServieChange) command , the MGC obtains the updated capability set of the MGW.

As shown in Figure 1, the method embodiment of the present invention comprises the following steps:

Step 10: After the MGW is powered on, the MGW initiates a service change registration command to the MGC, the mode is restart (Restart), and the cause value is cold start.

Step 20: The MGC returns a registration success response message to the MGW, indicating that the MGW is registered successfully.

Step 30: The MGC sends an audit capability command to the MGW, requesting to obtain the capability set currently supported by the MGW.

Step 40: The MGW sends its currently supported capability set to the MGC, and the MGC obtains the currently supported capability set of the MGW.

Step 50: When the capability set of the MGW changes, the MGW informs the MGC of its changed capability set through a service change command.

Step 60: The MGC returns a response message to the MGW, and the MGC obtains the updated capability set of the MGW.

Through the above processing flow, the MGC can accurately obtain the capability set of the MGW, and then can accurately deliver the appropriate capability set to the MGW during a call.

Of course, the present invention can also have other various embodiments, and those skilled in the art can make various corresponding changes and deformations according to the present invention without departing from the spirit and essence of the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (2)

1. the method for a media gateway controller obtaining ability, it is characterized in that, when media gateway on the Media Gateway Controller successfully the registration after, Media Gateway Controller sends the auditing capabilities order and obtains the current supported capability set of media gateway, when the ability of media gateway changes, inform Media Gateway Controller by the service change order again, make the capability set after media gateway controller obtaining upgrades.

2. method according to claim 1 is characterized in that, specifically may further comprise the steps:

Step 1: media gateway powers on the back to Media Gateway Controller initiation service change log-in command, and Media Gateway Controller sends the response message that succeeds in registration to media gateway after confirming the media gateway registration success;

Step 2: Media Gateway Controller sends the auditing capabilities order to media gateway, requires to obtain the capability set of media gateway, receive the response message of media gateway after, the initial ability collection of media gateway controller obtaining;

Step 3: after the capability set of media gateway upgrades, changes, media gateway sends the service change order to Media Gateway Controller, the capability set that upgrades is reported Media Gateway Controller, the capability set that media gateway controller obtaining upgrades is handed down to media gateway with the capability set that upgrades when calling out.

Images