CN101635984B - Method for synchronizing time division multiplex transmission resource state - Google Patents
Method for synchronizing time division multiplex transmission resource state Download PDFInfo
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- CN101635984B CN101635984B CN2008101345494A CN200810134549A CN101635984B CN 101635984 B CN101635984 B CN 101635984B CN 2008101345494 A CN2008101345494 A CN 2008101345494A CN 200810134549 A CN200810134549 A CN 200810134549A CN 101635984 B CN101635984 B CN 101635984B
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Abstract
The invention discloses a method for synchronizing the states of time division multiplex transmission resources, which adopts a resource synchronization strategy II to complete the synchronization of the states of TDM resources, determines the TDM resource allocation conditions on a TDM resource table and an MGW after the synchronization is completed, and timely adopts a resource synchronization strategy I to complete the state synchronization of the TDM resources on the MSCServer and the MGW again when the TDM resource allocation conditions on the TDM resource table and the MGW are found to be different greatly. The method of the invention can avoid the defects of the prior resource synchronization strategy that MGW needs to report a large amount of messages and the TDM resource occupation failure rate is high.
Description
Technical field
The present invention relates to the communications field, relate in particular to the synchronous method of time-division multiplex transmission (TDM) resource status on a kind of Media Gateway Controller server (MSCServer) and the WMG (MGW).
Background technology
The TDM resource is the physical circuit resource, belongs to MGW and controls use by MSCServer.The last TDM of the disposing resource table of MSCServer shines upon the TDM resource on the MGW, requires TDM resource status and the last TDM state of resources of MGW in the TDM resource table to be consistent.During calling, MSCServer selects idle and available TDM resource occupation in the TDM resource table, and upward the TDM state of resources is consistent if the TDM resource status in the TDM resource table is with MGW, and this TDM resource occupation can successfully carry out; And if the TDM resource status in the TDM resource table is idle and available, be unavailable but MGW goes up the TDM state of resources, then can cause this TDM resource occupation failure, finally cause call failure.
Existing completion MSCServer and MGW go up the TDM resource status synchronously so that the TDM resource status in the TDM resource table and MGW upward the source synchronous strategy that is consistent of TDM state of resources 2 two kinds of source synchronous strategy one and source synchronous strategies are arranged.
Said source synchronous strategy one comprises: MGW reports available TDM resource to MSCServer, and according to said available TDM resource modifying TDM resource table.Its advantage is that the state of available TDM resource on MGW that MSCServer selects also is available, can not take the situation of failure; Shortcoming a large amount of TDM resource that has been MGW one general configuration; And these TDM resource overwhelming majority all are available; Therefore, MGW need report a lot of bar message to tell MSCServer that which TDM resource can be used after registration, and too much message possibly cause part information drop-out in the transmission; And possibly surpass the disposal ability of MSCServer, cause synchronization failure.It is thus clear that this synchronization policy is applicable to that the TDM resource distribution on TDM resource table and the MGW differs bigger situation.
Said source synchronous strategy two comprises: MGW reports disabled TDM resource to MSCServer, and according to said available TDM resource modifying TDM resource table.Its advantage is that being used for of need reporting of MGW tells that the disabled message of which TDM resource of MSCServer is fewer; Shortcoming is if the TDM resource that the MSCServer of MSCServer and MGW upward dispose is incomplete same; Such as many than on the MGW of the TDM resource in the TDM resource table of MSCServer; The TDM resource that does not then have on the MGW, and that MSCServer possibly think is available, TDM resource occupation failure in the time of still can causing calling out.It is thus clear that this synchronization policy is applicable to the identical or close situation of TDM resource distribution on TDM resource table and the MGW.
But it is at present whether available according to all TDM resources in the TDM resource table of MSCServer manufacturers set; Confirm to adopt any source synchronous strategy wherein; If all TDM resources are unavailable in the TDM resource table; Then select acquiescence to report this MSCServer of MGW coupling of available TDM resource, and adopt source synchronous strategy one; Otherwise, then select acquiescence to report the MGW coupling MSCServer of unavailable TDM resource, and adopt source synchronous strategy two.Like this, can not select to be fit to the source synchronous strategy of the TDM resource distribution situation on current TDM resource table and the MGW flexibly, so that can not avoid the defective of above two kinds of synchronization policies.
Summary of the invention
In view of this, main purpose of the present invention is the method that provides a kind of time-division multiplex transmission resource state synchronous, and the MGW that has avoided the existing resource synchronization policy to exist need report a large amount of message and the high defective of TDM resource occupation mortality.
For achieving the above object, technical scheme of the present invention is achieved in that
The method that a kind of time-division multiplex transmission resource state is synchronous, this method may further comprise the steps:
A, receive the registration message of media gateway MGW after; Media Gateway Controller server MSCServer transmits time-division multiplex that all TDM resources all are set to upstate in the TDM resource table; Order MGW reports unavailable TDM resource, and according to said unavailable TDM resource modifying TDM resource table;
B, MSCServer take out the configuration Profile parameter in the registration message of said MGW; And judge whether MGW production firm information that this Profile parameter carries is consistent with MSCServer production firm information; If it is consistent; Think that then the configuration of TDM resource of MSCServer and MGW is identical, finish this flow process; If inconsistent, execution in step C then;
C, setting-up time section, whether the mortality that takies the TDM resource in the more said time period is greater than the threshold value that is provided with in advance, if be not more than, then the configuration of the TDM resource of MSCServer and MGW is close, finishes this flow process; If greater than; Then the configuration of the TDM resource of MSCServer and MGW is not close, and the MSCServer order all is set to down state with all TDM resources in the TDM resource table, and after ordering MGW to register again; Report available TDM resource, according to said available TDM resource modifying TDM resource table.
Further, said order MGW reports disabled TDM resource specifically to comprise:
MSCServer sends to MGW and carries the registration reply message of TDM state TDMState parameter, and the value of this TDMState parameter is FALSE.
Further, after said order MGW registers again, report available TDM resource specifically to comprise:
MSCServer sends registration message again to MGW;
After receiving the registration message of MGW, MSCServer sends to MGW and carries the registration reply message of TDMState parameter, and the value of this TDMState parameter is TRUE.
A kind of method that realizes the Layer 2 Tunneling Protocol tunnel conversion provided by the present invention has following advantage and characteristics:
The present invention adopts source synchronous strategy two to accomplish MSCServer and MGW goes up the synchronous of TDM state of resources; Reduced the message that MGW need report; And when the TDM resource distribution on TDM resource table and the MGW differs big; Timely employing source synchronous strategy one accomplishes MSCServer again and the last TDM state of resources of MGW is synchronous, the high defective of TDM resource occupation mortality of avoiding source synchronous strategy two to cause.
Description of drawings
Fig. 1 is the realization flow figure of the synchronous method of time-division multiplex transmission resource state of the present invention.
Embodiment
Principle of the present invention: adopt source synchronous strategy two completion MSCServer and MGW to go up the synchronous of TDM state of resources; MGW need report the size of message of MSCServer very little, when just thinking that TDM resource distribution on TDM resource table and the MGW differs big, just has the high defective of TDM resource occupation mortality; Therefore; The present invention adopts source synchronous strategy two to accomplish the synchronous of TDM state of resources, and, after accomplishing synchronously; Confirm the TDM resource distribution situation on TDM resource table and the MGW; When finding that TDM resource table and TDM resource distribution on the MGW differ big, it is synchronous in time to adopt source synchronous strategy one to accomplish on MSCServer and the MGW TDM state of resources again, the high defective of TDM resource occupation mortality of avoiding source synchronous strategy two to cause.
The realization flow of the method that time-division multiplex transmission resource state of the present invention is synchronous is as shown in Figure 1, may further comprise the steps:
Step 101: after receiving the registration message of MGW, MSCServer all is set to upstate with all TDM resources in the TDM resource table, and order MGW reports disabled TDM resource;
Specific instructions MGW reports the method for disabled TDM resource to comprise:
MSCServer sends to MGW and carries the registration reply message of TDM state (TDMState) parameter, and the value of this TDMState parameter is FALSE; Said TDMState parameter is a BOOL type variable; FALSE refers to MSCServer order MGW and reports disabled TDM resource; Promptly, carry the order that reports disabled TDM resource by registration reply message and give MGW through in registration reply message, increasing the TDMState parameter.
After MGW received registration reply message, decoding TDMState parameter obtained the value FALSE of this TDMState parameter.
Step 102:MGW reports unavailable TDM resource to MSCServer.
Step 103:MSCServer is according to unavailable TDM resource modifying TDM resource table that MGW reported.
Step 104: whether the configuration of TDM resource of judging MSCServer and MGW is identical, if identical, execution in step 107; If different, execution in step 105;
Concrete determination methods is:
MSCServer takes out configuration (Profile) parameter in the registration message of said MGW; And judge whether the MGW production firm information that this Profile parameter carries is consistent with production firm's information of MSCServer self; If consistent, think that then the configuration of TDM resource of MSCServer and MGW is identical; If inconsistent, think that then the configuration of TDM resource of MSCServer and MGW is different; The principle of this determination methods is: the configuration of MSCServer that same production firm produces and the TDM resource of MGW is identical, and MGW comprises MGW production firm information in the registration message of MGW when MSCServer registers.
Step 105: whether the configuration of TDM resource of judging MSCServer and MGW is close, if close, execution in step 107; If not close, execution in step 106;
Concrete determination methods comprises:
After the setting-up time section, whether the mortality that relatively should take the TDM resource in the time period greater than the threshold value that is provided with in advance, if greater than, then the configuration of the TDM resource of MSCServer and MGW is not close; If be not more than, then the configuration of the TDM resource of MSCServer and MGW is close;
Said setting-up time section is picked up counting by this flow process, can realize through timer, and the length of setting-up time section rule of thumb is provided with, and is recommended as 3 minutes; Said threshold value rule of thumb is provided with, and is recommended as 0.1%.
Step 106:MSCServer order all is set to down state with all TDM resources in the TDM resource table, and after ordering MGW to register again, reports available TDM resource, according to said available TDM resource modifying TDM resource table, execution in step 107.
Specific instructions is registered again and is reported the method for available TDM resource to be:
MSCServer sends registration message again to MGW;
After MSCServer received the registration message of MGW, MSCServer sent to MGW and carries the registration reply message of TDMState parameter, and the value of this TDMState parameter is TRUE; Said TDMState parameter is a BOOL type variable; TRUE refers to MSCServer order MGW and reports disabled TDM resource; Promptly, carry the order that reports available TDM resource by registration reply message and give MGW through in registration reply message, increasing the TDMState parameter;
After MGW received registration reply message, decoding TDMState parameter obtained the value TRUE of this TDMState parameter.
Step 107: finish this flow process.
The registration message of MGW according to the invention, registration reply message; And registration message is the message that agreement MSCServer H.248 controls the TDM resource on the MGW again; H.248 agreement is adopted by tissues such as international telegraph union (ITU)/third generation gpp (3GPP)/third generation gpp 2 (3GPP2), is mainly used in Media Gateway Controller (MGC)/MSCServer/ Media Gateway Controller network element (MSCe) the TDM resource that is positioned on the MGW is controlled.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (3)
1. the method that time-division multiplex transmission resource state is synchronous is characterized in that, this method may further comprise the steps:
A, receive the registration message of media gateway MGW after; Media Gateway Controller server MSCServer transmits time-division multiplex that all TDM resources all are set to upstate in the TDM resource table; Order MGW reports unavailable TDM resource, and according to said unavailable TDM resource modifying TDM resource table;
B, MSCServer take out the configuration Profile parameter in the registration message of said MGW; And judge whether MGW production firm information that this Profile parameter carries is consistent with MSCServer production firm information; If it is consistent; Think that then the configuration of TDM resource of MSCServer and MGW is identical, finish this flow process; If inconsistent, execution in step C then;
C, setting-up time section, whether the mortality that takies the TDM resource in the more said time period is greater than the threshold value that is provided with in advance, if be not more than, then the configuration of the TDM resource of MSCServer and MGW is close, finishes this flow process; If greater than; Then the configuration of the TDM resource of MSCServer and MGW is not close, and the MSCServer order all is set to down state with all TDM resources in the TDM resource table, and after ordering MGW to register again; Report available TDM resource, according to said available TDM resource modifying TDM resource table.
2. according to the synchronous method of the said time-division multiplex transmission resource state of claim 1, it is characterized in that said order MGW reports disabled TDM resource specifically to comprise:
MSCServer sends to MGW and carries the registration reply message of TDM state TDMState parameter, and the value of this TDMState parameter is FALSE.
3. according to the synchronous method of the said time-division multiplex transmission resource state of claim 1, it is characterized in that, after said order MGW registers again, report available TDM resource specifically to comprise:
MSCServer sends registration message again to MGW;
After receiving the registration message of MGW, MSCServer sends to MGW and carries the registration reply message of TDMState parameter, and the value of this TDMState parameter is TRUE.
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| CN2008101345494A CN101635984B (en) | 2008-07-25 | 2008-07-25 | Method for synchronizing time division multiplex transmission resource state |
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| CN101635984B true CN101635984B (en) | 2012-05-16 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1051002A2 (en) * | 1999-05-04 | 2000-11-08 | Tektronix, Inc. | Resource constrained routing in active networks |
| CN1581791A (en) * | 2003-08-01 | 2005-02-16 | 华为技术有限公司 | Method for providing reliable transmission service quality in communication network |
| CN1863008A (en) * | 2006-06-20 | 2006-11-15 | 杭州华为三康技术有限公司 | Method and apparatus for implementing data resources synchronization in distributed system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1051002A2 (en) * | 1999-05-04 | 2000-11-08 | Tektronix, Inc. | Resource constrained routing in active networks |
| CN1581791A (en) * | 2003-08-01 | 2005-02-16 | 华为技术有限公司 | Method for providing reliable transmission service quality in communication network |
| CN1863008A (en) * | 2006-06-20 | 2006-11-15 | 杭州华为三康技术有限公司 | Method and apparatus for implementing data resources synchronization in distributed system |
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