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Method of media gateway registration negotiation

A media gateway and deregistration technology, applied in the field of communication, can solve problems such as rejection, unresponsive business operation, MGW failure, etc., and achieve the effect of improving predictability

Inactive Publication Date: 2012-12-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] When the transport layer communication association is based on a connectionless protocol (such as UDP, etc.), the MGW removes the transport layer communication association, and the MGC has no way to perceive it. According to the H.248 protocol, the MGC believes that the MGW has successfully registered with itself, so it continues to register with the MGW. The MGW distributes the service, resulting in no response or rejection of the service operation. In the case of no response, the MGC considers that the communication is interrupted or the MGW is faulty. In the case of the operation being rejected, the current protocol definition cannot indicate the correct reason to the MGC.

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Embodiment Construction

[0031] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] The present invention sends a notification to the current MGC to cancel the registration when the MGC is unavailable, wherein the unavailable MGC may be due to: master MGC switching, registration negotiation failure, and the like. The specific notification mechanism here can be determined as needed. Under the H.248 protocol, the ServiceChange command can be used for registration and deregistration. The following uses the ServiceChange command as an example to describe in detail how to implement the present invention when the current MGC is unavailable due to registration negotiation failure and another MGC is reselected.

[0033] In this embodiment, the MGW uses the ServiceChange command to notify the current MGC, so that the MGC r...

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Abstract

This invention discloses a method for registration and negotiation of medium gateways including the following steps: MGW transmits a register request message to its controller MGC to initiate registration negotiation, and MGW sends an informing message to MGC to release the registration when MGC can't be used.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for media gateway registration negotiation. Background technique [0002] Under the separation architecture, the main bodies of the call control plane and the bearer control plane are the Media Gateway Controller (Media Gateway Controller, MGC) and the Media Gateway (Media Gateway, MGW). The MGW is controlled by the MGC, and its interface protocol is called the Media Gateway. control protocol. The Telecommunication Standardization Sector (ITU-T) of the International Telecommunication Union defines the H.248 series of specifications. The mobile MGC controls the MGW to allocate bearer resources or transmit corresponding call bearer control signaling through the H.248 protocol. [0003] The H.248 protocol is defined in a transport-layer-independent manner, that is, the transport protocol used to carry H.248 messages between the MGC and the MGW can be of any suitable type. For exa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66
Inventor 汪大海
Owner HUAWEI TECH CO LTD
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