CN100531193C - Releasing method of H.248 protocol resource - Google Patents
Releasing method of H.248 protocol resource Download PDFInfo
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- CN100531193C CN100531193C CNB200410075320XA CN200410075320A CN100531193C CN 100531193 C CN100531193 C CN 100531193C CN B200410075320X A CNB200410075320X A CN B200410075320XA CN 200410075320 A CN200410075320 A CN 200410075320A CN 100531193 C CN100531193 C CN 100531193C
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- media gateway
- context
- resource
- instruction
- free context
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Abstract
A method for releasing the H.248 protocol resource includes such steps as triggering the medium gateway controller by a service for applying resource, creating context, running and terminating the service, issuing the context releasing instruction from the medium gateway controller to the medium gateway, releasing all terminals of context by said gateway, and releasing the context.
Description
Technical field
The present invention relates to the H.248 processing of protocol resource, relate in particular to the H.248 method for releasing of protocol resource.
Background technology
At present the control protocol of Media Gateway Controller and media gateway H.248 in, Media Gateway Controller is responsible for handling and is called out relevant signaling and control media gateway, media gateway is responsible for managing medium resource and speech channel is set up.A context (CONTEXT) refers to the set of some calling terminals, and terminal is meant on the media gateway and sends or the logic entity of receiving media stream.
After the service ending, the release of whole resources shows as all contexts and is finally discharged.Existing H.248 defined the implicit expression method for releasing in the agreement, the implicit expression method for releasing is meant when all terminals in the context and receives after release command is released that context is automatically released.Realize by discharging each terminal one by one for the release of protocol resource H.248 in the prior art, these method characteristics are to realize simply, Media Gateway Controller does not need to be concerned about contextual maintenance, there is following problem in it: when Media Gateway Controller breaks down, in the time of can't knowing all terminals of wanting in the free context, context and terminal wherein just can't discharge, and cause H.248 protocol resource to be in hanging the death situation attitude, can not be professional use the next time.
For example in MPTY, the certain module of Media Gateway Controller lost efficacy, can not handle to the signaling that makes some correspondent, at this moment other correspondent call releases, but owing to also have some users not discharge terminal, context on the media gateway will continue to keep, and just be able to manually intervene after artificial discovery discharge.In the network configuration that adopts calling control and carrying foundation control to separate, adopt the method for releasing of existing H.248 protocol resource, cause the generation dead and the inconsistent problem of resource status of Media Gateway Controller and media gateway resource extension more frequent.
Summary of the invention
The present invention will solve the fault that exists in the existing H.248 protocol resource method for releasing and cause resource to hang dead problem, and a kind of method for releasing of reliable and effective H.248 protocol resource is provided.
The inventive method may further comprise the steps:
Step 1: the once professional Media Gateway Controller application resource that triggers, set up context;
Step 2: during this service ending, the instruction of Media Gateway Controller issue free context is notified all resources in the media gateway free context to media gateway;
Step 3: media gateway is received instruction, all terminals in the free context, and free context then, this professional resource discharges to be finished.
Further, the instruction of free context is notified media gateway by increase the signal description symbol in the order SUB that discharges terminal in the step 2.
Further, the instruction of free context is notified media gateway by definition newer command SUBC in the step 2, wherein orders to have contextual tagging among the SUBC.
Compared to prior art, the present invention is by free context rather than discharge each terminal one by one and finish release to all resources that relate in the business once, no matter whether have terminal in the context, media gateway discharges the terminal in all contexts when receiving the instruction notification of Media Gateway Controller free context, thereby resource is not hung extremely when guaranteeing to break down, and can reduce the message traffic in the network.
Description of drawings
Fig. 1 is that basic service of the prior art is called out schematic diagram;
Fig. 2 is the implementing procedure figure of the inventive method.
Embodiment
In order when calling is broken down, to discharge whole call resources, avoid occurring resource and hang dead problem, all resources that the inventive method adopts the method for explicit free context to discharge once to relate in the business.Explicit method for releasing is meant, no matter whether have terminal in the context, as long as the indication that media gateway is received its free context of Media Gateway Controller requirement, and just all terminals, free context then in the free context immediately.
The inventive method may further comprise the steps:
1) the once professional Media Gateway Controller application resource that triggers is set up context;
2) during this service ending, Media Gateway Controller will discharge all resources;
3) Media Gateway Controller is by discharging resource to the instruction of media gateway issue free context rather than the instruction that discharges each contextual terminal; Wherein
A. the instruction of free context by in discharging the order SUB of terminal, increase signal description symbol notice media gateway or
B. the instruction of free context wherein orders to have contextual tagging among the SUBC by definition newer command SUBC notice media gateway;
4) media gateway is received instruction, all terminals in the free context, and free context then, this professional resource discharges to be finished.
Fig. 1 is the schematic diagram that basic service is called out in the prior art, and as shown in Figure 1, Media Gateway Controller is responsible for handling the needed signaling process of getting through, and media gateway is in charge of call resources (comprising the relaying speech channel, IP speech channel etc.).Media Gateway Controller passes through H.248 protocol message control media gateway, finishes the application resource, connects speech channel, discharges speech channel, discharges functions such as resource.Media Gateway Controller generally uses half-call model, and the processing that is about to call signaling is divided into Calling Side and callee side.
Fig. 2 is the implementing procedure figure of the inventive method, may further comprise the steps:
Step a: Media Gateway Controller is received call setup request message;
Step b: the Media Gateway Controller replay call is set up signaling, and to media gateway application terminal, media gateway is created context, and distributing terminals;
Step c: called subscriber's off-hook, call out and enter talking state;
Steps d: because power down, called module is unavailable;
Step e: called subscriber's module failure is found in calling subscriber's on-hook, Media Gateway Controller when call release, terminal called information is unavailable;
Step f: Media Gateway Controller sends deletion contextual message (being the instruction of free context) to media gateway, the realization of this message can be passed through different modes, as: in release terminal Subtract (SUB) order in agreement H.248, expansion signals (signal description symbol), the value that increases signals is notified media gateway; Perhaps, H.248 increasing new order SUBC free context in the agreement, the SUBC order comprises identification contextual sign (being contextual tagging);
Step g: all terminals in the media gateway free context, the deletion context, response discharges successfully;
Step h: call resources discharges to be finished.
More than describe the principle and concrete application of the inventive method in detail, but should not be considered to be limitation of the scope of the invention.
Claims (3)
1. the MGCP method for releasing of resource H.248 may further comprise the steps:
Step 1: the once professional Media Gateway Controller application resource that triggers, set up context;
Step 2: during this service ending, the instruction of Media Gateway Controller issue free context is notified all resources in the media gateway free context to media gateway;
Step 3: media gateway is received instruction, all terminals in the free context, and free context then, this professional resource discharges to be finished;
Described context refers to the set of some calling terminals, and described terminal is meant on the media gateway and sends or the logic entity of receiving media stream.
2. the method for claim 1 is characterized in that, the instruction of free context is notified media gateway by increase the signal description symbol in the order that discharges terminal in the step 2.
3. the method for claim 1 is characterized in that, the instruction of free context is notified media gateway by the definition newer command in the step 2, has contextual tagging in this newer command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410075320XA CN100531193C (en) | 2004-09-06 | 2004-09-06 | Releasing method of H.248 protocol resource |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410075320XA CN100531193C (en) | 2004-09-06 | 2004-09-06 | Releasing method of H.248 protocol resource |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1747469A CN1747469A (en) | 2006-03-15 |
| CN100531193C true CN100531193C (en) | 2009-08-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410075320XA Expired - Fee Related CN100531193C (en) | 2004-09-06 | 2004-09-06 | Releasing method of H.248 protocol resource |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100531193C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100558088C (en) * | 2006-12-14 | 2009-11-04 | 华为技术有限公司 | Virtual media gateway to optimize connects the method and system of net |
| CN101262679B (en) * | 2007-03-06 | 2012-02-08 | 中兴通讯股份有限公司 | Resource release method |
| CN101316263B (en) * | 2007-06-02 | 2011-08-31 | 华为技术有限公司 | Resource reservation method and apparatus |
| WO2009079827A1 (en) * | 2007-12-14 | 2009-07-02 | Zte Corporation | Method and system for releasing resources in gateway device |
| CN101330471B (en) * | 2008-07-29 | 2011-07-13 | 中兴通讯股份有限公司 | Method for collecting medium gateway information on one side of base station controller when non-frame release call |
| CN101594391B (en) * | 2009-06-19 | 2012-09-26 | 中兴通讯股份有限公司 | Method and system for reducing resource hang |
| CN101873628B (en) * | 2010-04-28 | 2014-11-05 | 中兴通讯股份有限公司 | Method and device for realizing subscriber state synchronization in IP multimedia subsystem (IMS) domain |
| CN109040093B (en) * | 2018-08-20 | 2021-07-13 | 中国联合网络通信集团有限公司 | Method and system for releasing temporary termination point |
-
2004
- 2004-09-06 CN CNB200410075320XA patent/CN100531193C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| Use of MEGACO vis-a-vis MGCP to build a Gateway Solution. 1-10,Hughes Software Systems Ltd.. 1999 |
| Use of MEGACO vis-a-vis MGCP to build a Gateway Solution. 1-10,Hughes Software Systems Ltd.. 1999 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1747469A (en) | 2006-03-15 |
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Granted publication date: 20090819 Termination date: 20130906 |