CN100563247C - A kind of method for reporting information based on the gateway resource group - Google Patents
A kind of method for reporting information based on the gateway resource group Download PDFInfo
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- CN100563247C CN100563247C CNB2005101208845A CN200510120884A CN100563247C CN 100563247 C CN100563247 C CN 100563247C CN B2005101208845 A CNB2005101208845 A CN B2005101208845A CN 200510120884 A CN200510120884 A CN 200510120884A CN 100563247 C CN100563247 C CN 100563247C
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Abstract
The invention discloses a kind of method for reporting information based on the gateway resource group, it is used for comprising the packet network of media gateway and Media Gateway Controller, may further comprise the steps: the resource division that described media gateway is connected is a plurality of resource groups, is sent the attribute information of each resource group to described Media Gateway Controller by described media gateway; After described Media Gateway Controller receives the attribute information of this resource group, take different processing according to the attribute characteristics of different resource group.The inventive method has reduced the call loss to whole resource adjustment that causes because of part resource congestion band effectively by introduced the granularity of resource group on MG and MGC.
Description
Technical field
The present invention relates to a kind of processing method of reporting based on the gateway resource grouping information of core net, in particular, a kind of at the report information of the gateway resource group in the packet network and the method for processing.
Background technology
MGC of prior art (Media Gateway Controller) and MG (media gateway) are two key members in the packet network, and MGC is responsible for CCF, and MG is responsible for providing media resource and bearing resource, and wherein media resource comprises: encoding and decoding, playback passage; Bearing resource comprises TDM/IP/ATM carrying data channel; Can realize by this calling out separating of control plane and service bearer plane, thus abundant shared network resource, and simplified apparatus upgrading and professional expansion reduce development and maintenance cost greatly.
The packet network architecture of prior art is controlled each MG by MGC and is formed packet network as shown in Figure 1, and MGCP is the main agreement of communicating by letter between MG and the MGC, and H.248/MeGaCo at present widely used have and two kinds of agreements of MGCP.Wherein, MGCP protocol version 1 is worked out and is revised in January, 2003 in October, 1999 by IETF, H.248/MeGaCo protocol version 1 is revised in common formulation of in November, 2000 and in June, 2003 by IETF and ITU, H.248 protocol version 2 is worked out and is revised in March, 2004 in May, 2002 by ITU, and H.248 protocol version 3 is worked out just to be released by ITU in July, 2005.
With agreement H.248 is example, and the various resources on the MG are terminal (Termination) by abstract representation.Terminal is divided into physics (Physical) terminal and interim (Ephemeral) terminal again, and the former represents some physical entities with semipermanent existence, TDM passage etc. for example, the public resource that on behalf of some provisional application, the latter discharge with the back, for example rtp streaming etc.Combination between the terminal is context (Context) by abstract representation.Context can comprise a plurality of terminals, thereby describes the correlation of terminal room with topology (Topology).For also related terminal not taking place, be called the contextual special context of sky (Null) by one and comprise with other terminal.
Based on this abstract model of agreement, in fact continuing of calling be exactly to terminal and contextual operation.This operation is finished by the order between MGC and the MG (Command) request and response.Command type comprises interpolation (Add), revises (Modify), deletes (Subtract), moves (Move), audit value (AuditValue), auditability (AuditCapabilities), circular (Notify), service change (ServiceChange).Command parameter is also referred to as descriptor (Descriptor), is classified as attribute (Property), signal (Signal), incident (Event), statistics (Statistic), and the parameter with professional correlation polymerization in logic becomes bag (Package).
Owing to call out control and service bearer respectively on these two entities that separate of MGC and MG, MGC need know that operating position, especially resource that MG goes up each resource have taken place to transship and when congested, and MGC should be in time takes some measures according to the ability adjustment of MG.
The requirement of network address resources and network security in addition when MG need be connected to grouping resources in the heterogeneous networks, can be disconnected each other.MGC is on carrying out MG in the IP bearing resource operation, just need know which network current call bearer need be connected to and get on, as shown in Figure 2, bearing resource to a network occurs congested or overload, and the bearing resource on the whole M G does not transship, MG just can not report MGC to overload situations, so MGC can not know this information of acquisition.
ITU-T H.248 protocol definition OCP (Overload Control Package, the overload controlling packet) bag, when overload takes place in MG, MG reports MGC by OCP bag reporting event mode, this treatment mechanism is as follows: when MGC carries out the Add end points, detect MG in the MG processing messages and overload occurs, will be used for identifying whole gateway overload has taken place by Root (root) terminal to report overload event.
In addition ITU-T H.248 agreement also defined CHP (Congestion Handling package, congested pack processing) bag, take place congested when MG detects media resource, MG will give MGC congestion events by Root (root) terminal to report, and carry flow control parameters, wish that MGC reduces the new calling of Flow Control ratio.
Owing in overload controlling packet OCP or congested controlling packet CHP, all report, that is to say and to reflect that overload or congested has taken place whole M G with Root (root) end points.But under Fig. 2 situation, the resource of certain network is a subclass of MG resource, and when this subclass generation resource congestion, OCP and CHP just can't report MG.Cause the operating position of bearer network resource accurately not circulate a notice of to MGC, MGC can not take measures such as Flow Control or load transfer to this kind situation, so just makes to have produced call loss in the communication process.
In a word, the media resource of prior art is divided into different subclass because of the ability different needs, and the granularity that still reports as the bearing resource behaviour in service with whole media resource set between MG and the MGC, so just will inevitably cause MGC can't obtain the operating position accurately of MG resource, and then can not rationally control resource, must cause call loss like this.Therefore, there is defective in prior art, and awaits improving and development.
Summary of the invention
The object of the present invention is to provide a kind of method for reporting information at the gateway resource group, it is dealt with problems and is: after MGC management MG resource is introduced the resource group, MG resource group is reduced to report granularity, thereby reflect the gateway resource operating position more realistically, satisfy the different requirements of practical application.
Technical scheme of the present invention comprises:
A kind of method for reporting information at the gateway resource group, the packet network that it is used for comprising media gateway and Media Gateway Controller may further comprise the steps:
A, the resource division that described media gateway is connected are a plurality of resource groups, described resource comprises IP resource and TC resource, the IP resource is divided according to the ability to other network connection of IP carrying, the TC resource is divided according to code/decode type, send the attribute information of each resource group by described media gateway to described Media Gateway Controller;
After B, described Media Gateway Controller receive the attribute information of this resource group, take different processing according to the attribute characteristics of different resource group.
Described method, wherein, described attribute information comprises the identification number of its resource group utilization rate and corresponding resource group; And the processing of described Media Gateway Controller comprises:
A1, when receiving the congested attribute information of a certain resource group, carry out Flow Control at the calling of this resource group.
Described method, wherein, the processing of described Media Gateway Controller also comprises:
B1, behind the attribute information that the congestion condition of the described congested resource group of the described media gateway that receives disappears, stop the Flow Control measure.
Described method, wherein, described media gateway is attribute information of each resource group under described Media Gateway Controller sends it regularly.
Described method, wherein, described Media Gateway Controller requires the attribute information of described medium gateway to report each resource group under it by audit measure.
Described method, wherein, described Media Gateway Controller also number is checked the resource group id of described medium gateway to report, and informs described media gateway by error code when inconsistent.
A kind of method for reporting information provided by the present invention based on the gateway resource group, by on MG and MGC, having introduced the granularity of resource group, can carry out the resource operating position reports, thereby making MGC do refinement based on the operating position of resource group handles, especially take place when congested when the use of resource group, the call loss that whole resource is adjusted by taking measures, reduced effectively to cause targetedly because of part resource congestion band.
Description of drawings
Fig. 1 is the packet network architecture schematic diagram of prior art;
Fig. 2 is the schematic network structure of a plurality of resource groups of prior art;
Fig. 3 is the schematic network structure of the specific embodiment of the inventive method;
Fig. 4 is the Internet resources structural representation in this specific embodiment of the inventive method;
Fig. 5 is the schematic flow sheet of the specific embodiment of the inventive method.
Embodiment
Below in conjunction with accompanying drawing, will carry out comparatively detailed explanation to each preferred embodiment of the present invention.
Owing to network security and Internet resources reason, bring the concatenation ability difference in the networking IP bearing resource, and then need MGC to carry control, so the inventive method introducing resource group solves this problem according to the IP resource capability.The MG of the inventive method is the MGC that reports that granularity is carried out operating position information based on the resource group, and MGC just can make further processing according to the operating position of resource group like this.
The network configuration of the inventive method comprises at least one MG under the MGC control as shown in Figure 3, in this MG resource is divided into groups, and can be divided into resource group 1～n, and the media resource in the inventive method comprises: IP bearing resource and TC resource.The principle of classification is exactly that same group of interior media resource of requirement has some identical ability; Can divide according to the ability to other network connection of IP carrying the IP bearing resource; Can divide according to code/decode type the TC resource.
The grouping of introducing method media resource can be adopted data configuration method on MG and MGC entity; Finally reach MG and have identical group character with MGC, group character can be adopted digital form or other form, but will guarantee to identify unique.Except that the sign of media resource group, the related data of media resource group comprises: for IP bearing resource group can be connected the association of purpose network data, need the set of code/decode type or coding/decoding capability for TC resource group.
MG is that granularity reports resource to use information to MGC with the resource group in the inventive method; Report mode initiatively to report, also can require MG to report by audit measure for MGC for MG.The information that reports can comprise: the ability, CPU disposal ability or the suggestion MGC that have taken bandwidth information, the IP resource of occupancy that resource accounts for whole resource group resource, IP carrying limit new calling and take ratio of this resource group or the like.
When MG had reported the use information of a certain resource group, MGC can handle accordingly according to the reporting information of MG.When MGC found that resource group that MG reports does not exist, it was inconsistent to illustrate that resource group data on MG and the MGC exist, and MGC will return to the MG error code, show not have this resource group on the MGC.
It below is a specific embodiment of dividing at the IP packet bearer resource group in the inventive method, requirement because of actual networking, IP carrying on the MG will be connected in the different networks as required, according to the external network difference that connects, the set of resources on the MG become 3 resource groups here.Corresponding 3 the resource groups of configure resource groups on MGC.Need dispose the network that each resource group can arrive at MGC simultaneously.
Can realize in the inventive method that congestion events to the resource group reports and realizes at the more congested processing of small grain size: in CHP (congested pack processing) bag, increase attribute as adopting: the resource group.Though still adopt the Root end points to carry out congested reporting, carry attribute resource group simultaneously, and the congestion condition of resource group is reported.If do not carry the resource group id, taken place congested as the whole gateway that will identify of prior art.
The inventive method at the handling process of congestion events as shown in Figure 5, it comprises:
A, described MG detect resource group m taken place congested after, by NotifyReq message informing MGC H.248, and carry the occupancy of resource group identification parameter and resource, congested to notify which resource group of described MGC to take place, and congested degree;
B, described MGC carry out the congested processing of modes such as Flow Control to follow-up calling at resource group m after receiving that congested incident takes place resource group m, and to MG response control messages NotifyRsp;
C, by the measures such as Flow Control of described MGC, after the congestion cleared of described MG resource group m, MG reports the message NotifyReq and the resources occupation rate of resource group m relieve congestion;
After D, described MGC receive relieve congestion, will stop measures such as resource group m Flow Controls.
The inventive method when the resource group id in the notification message that MGC receives does not exist, need provide error code in the notice response message and inform MG under abnormal conditions, and this resource group id mistake is described.So just can find in time that MG and MGC go up inconsistent that configuration data for the resource group may exist, and are further processed in view of the above.
Utilize method of the present invention, on MG and MGC, introduced the resource group, because the resource group never embodies in the interface of gateway and gateway controller in the prior art, so can think to never have in two entities this common notion, therefore the inventive method can adopt the method for data configuration to be incorporated in two entities when introducing based on this notion; MG can carry out the resource operating position with the granularity of resource group and reports in addition, MGC just can carry out further thinning processing based on the operating position of resource group, as: when the use of resource group takes place when congested, reduce the call loss that causes because of resource congestion effectively by taking measures, this can't obtain this effect in existing protocol.
Should be understood that above-mentioned description at specific embodiment is comparatively detailed, can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (6)
1, a kind of method for reporting information based on the gateway resource group, the packet network that it is used for comprising media gateway and Media Gateway Controller may further comprise the steps:
A, the resource division that described media gateway is connected are a plurality of resource groups, described resource comprises IP resource and TC resource, the IP resource is divided according to the ability to other network connection of IP carrying, the TC resource is divided according to code/decode type, send the attribute information of each resource group by described media gateway to described Media Gateway Controller;
After B, described Media Gateway Controller receive the attribute information of this resource group, take different processing according to the attribute characteristics of different resource group.
2, method according to claim 1 is characterized in that, described attribute information comprises the identification number of its resource group utilization rate and corresponding resource group; And the processing of described Media Gateway Controller comprises:
A1, when receiving the congested attribute information of a certain resource group, carry out Flow Control at the calling of this resource group.
3, method according to claim 2 is characterized in that, the processing of described Media Gateway Controller also comprises:
B1, behind the attribute information that the congestion condition of the described congested resource group of the described media gateway that receives disappears, stop the Flow Control measure.
4, method according to claim 1 is characterized in that, described media gateway is attribute information of each resource group under described Media Gateway Controller sends it regularly.
5, method according to claim 1 is characterized in that, described Media Gateway Controller requires the attribute information of described medium gateway to report each resource group under it by audit measure.
6, method according to claim 2 is characterized in that, described Media Gateway Controller also number is checked the resource group id of described medium gateway to report, and informs described media gateway by error code when inconsistent.
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| CNB2005101208845A CN100563247C (en) | 2005-12-16 | 2005-12-16 | A kind of method for reporting information based on the gateway resource group |
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| CNB2005101208845A CN100563247C (en) | 2005-12-16 | 2005-12-16 | A kind of method for reporting information based on the gateway resource group |
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| CN1984128A CN1984128A (en) | 2007-06-20 |
| CN100563247C true CN100563247C (en) | 2009-11-25 |
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| CN101471870B (en) * | 2007-12-28 | 2011-05-04 | 华为技术有限公司 | Method and device for obtaining resource expiration information |
| CN101471850B (en) * | 2007-12-29 | 2013-04-24 | 华为技术有限公司 | Method for identifying medium resource, medium gateway and medium gateway controller |
| CN101222501B (en) * | 2008-01-31 | 2012-11-28 | 中兴通讯股份有限公司 | Method and device for implementing multi-granularity resource control in next-generation network |
| CN101383774B (en) * | 2008-10-10 | 2012-01-25 | 华为技术有限公司 | Media gateway, media gateway controller, control method and system for IP bearing network service |
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Granted publication date: 20091125 Termination date: 20211216 |