Method for implementing H.248 information compatibility

A message and media gateway technology, applied in the direction of using the return channel for error prevention/detection, electrical components, transmission systems, etc., can solve problems that affect the stability of core network equipment, difficulty in negotiating capabilities, and complex implementation

Inactive Publication Date: 2008-01-02
ZTE CORP
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Problems solved by technology

[0005] Although the above two methods solve the intercommunication problem, they also have the following two disadvantages: First, it is assumed that the MGC and MGW can support the same negotiation capability at the same time. The reality is that it is difficult to ensure that the MGW and MGC have the same negotiation capabilities in a short period of time; second, the methods to circumvent the compatibility o

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  • Method for implementing H.248 information compatibility

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Embodiment Construction

[0021] A method for realizing H.248 message compatibility according to the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] Figure 1 is a flow chart of MGW registration specified in the H.248 protocol, including the following steps:

[0023] Step 101: The signaling link between the MGW and the MGC is restored;

[0024] Step 102: The MGW actively sends a registration request message to the MGC;

[0025] Step 103: The MGC sends a registration response message to the MGW, and the MGW enters a working state after receiving a positive registration response message.

[0026] Step 104: MGW and MGC use H.248 to carry out normal call flow. At this time, if MGW receives an unrecognized function package, MGW will return an error response to MGC, and the call cannot be carried out.

[0027] Fig. 2 is that the present invention proposes H.248 message compatibility flowchart, comprises the following steps:

[0028] Step 2...

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Abstract

The invention relates to a method for realizing H.248 message compatibility, which can effectively resolve the compatibility problem between MGW and MGC of H.248 protocol. The inventive method comprises that a media network gate controller successfully registers on a media network gate to send a command for setting control parameters to the media network gate, the control parameters are set as actively jumping or inactively jumping function pack, the media network gate feedbacks a setting answer to the media network gate controller, if the media network gate supports the active jumping function, the media network gate feedbacks a success setting message, or else, feedbacks an error answer, the media network gate executes setting command, according to the control parameters to judge if jumps over unknown function pack, and if the control parameters are set as actively jumping, the media network gate actively jumps over unknown function pack. The invention can confirm normal communication without affecting system stability, when MGC and MGW are not consistent.

Description

technical field [0001] The invention relates to a method for realizing message compatibility, in particular to a method for realizing H.248 message compatibility on MGC (media gateway controller) and MGW (media gateway) in NGN (next generation network) system in the communication field. Background technique [0002] The International Organization for Standardization ITU-T (International Telecommunication Union - Telecommunication Standardization Department, Telecommunication Standardization Sector of ITU, referred to as ITU-T), is responsible for the formulation and revision of the relevant telecommunication standards of the Telecommunication Union. In the H.248 protocol formulated by it, a set of systems and methods for the MGC to control the MGW is defined. The H.248 protocol continuously expands the functions of the protocol by defining function packages, and different application scenarios require different function packages. At present, the H.248 protocol is widely app...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/66H04L1/16
Inventor 宁冬子
Owner ZTE CORP
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