CN101442815B - Method for indicating implement terminal connection of medium gateway - Google Patents
Method for indicating implement terminal connection of medium gateway Download PDFInfo
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- CN101442815B CN101442815B CN2008101896603A CN200810189660A CN101442815B CN 101442815 B CN101442815 B CN 101442815B CN 2008101896603 A CN2008101896603 A CN 2008101896603A CN 200810189660 A CN200810189660 A CN 200810189660A CN 101442815 B CN101442815 B CN 101442815B
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Abstract
The invention discloses a method for indicating media gateway for executing terminal connection. The method comprises: when calling connection is needed, media gateway controller (MGC) carries the information of terminal possessing connection ability for MG in connection indication and transmits the connection indication to MG (media gateway). The invention can guarantee MG effectively performs terminal connection operation so as to ensure successful execution for calling connection and promoted service quality.
Description
Technical field
The present invention relates to the network communications technology, particularly relate to the method that a kind of indicating media gateway executing terminal connects.
Background technology
At present, soft-exchange construction has obtained using widely.Soft-exchange construction will carry with control and separate, and (Media Gateway MG) realizes bearing function, that is to say, MG mainly provides and insert adaption function, with the media stream transition function of other network interworkings and particular media asset etc. is provided by WMG; Then (Media Gateway Controller MGC) realizes controlled function, that is to say, MGC can carry out the miscellaneous service operation through signaling control MG, thereby realizes the control to calling procedure by Media Gateway Controller.
Dispose among the MG and realize calling out required various resources, in soft-exchange construction, resource is terminal (Termination) by abstract definition; Therefore, according to the operating position of resource, the terminal among the MG can be the resource with semipermanent existence; (Time Division Multiplex, TDM) passage etc. also can be the resources that provisional application discharges with the back like time division multiplexing for these; This as real-time host-host protocol (Real-time Transport Protocol, RTP) stream etc.In soft-exchange construction, the combination between the different terminals is context (Context) by abstract definition, that is to say, has comprised the topological relation of terminal room in the context.Like this, for call, the performed various call proceeding operation reality of MG are exactly in corresponding to the context of calling out, relevant terminal to be coupled together.This as, referring to Fig. 1, setting up calling to MPTY a and called party b when being connected; On MG, the employed resource of MPTY a is to comprise TDM passage a and rtp streaming a in the terminal, and the employed resource of called party b is to comprise TDM passage b and rtp streaming b in the terminal; Therefore; MG must couple together terminal TDM passage a and rtp streaming a in the context Context a corresponding to MPTY a when carrying out this call proceeding; In context Context b, terminal TDM passage b and rtp streaming b are coupled together corresponding to called party b.
This shows that MG carries out the terminal connection in corresponding to the context of calling out process is a significant process in the call proceeding process.At present, MG carries out the terminal connection procedure under the control of MGC.
Fig. 2 indicates MG to carry out the flow chart that the terminal connects in the prior art.Referring to Fig. 2, in the prior art, the process that MGC indication MG carries out the terminal connection may further comprise the steps:
Step 201: when needs carried out call proceeding, the terminal information that MGC will connect was carried to connect in the indication and is sent to MG.
Here, referring to Fig. 3, this terminal information that employed terminal of MPTY a TDM passage a and the employed terminal of called party b TDM passage b is connected as need like MGC is carried at and connects in the indication, and is sent to MG.
After step 202:MG receives the connection indication of carrying the terminal information that needs connection, judge self whether to possess with connecting the ability that indicated terminal connects in the indication, if then execution in step 203, otherwise, execution in step 204.
Here, for various dissimilar terminals, MG possesses the ability that connects for the terminal of some of them type, and for the terminal of some other type, does not then possess the ability that connects.This as, referring to Fig. 3, MG possesses the ability that the terminal of representing the TDM passage is connected with the terminal of representing rtp streaming; And owing to lack the associated inner exchange logic; Do not possess the ability that the terminal of representing two TDM passages is connected; At this moment, even MG receives indication that MGC sends with the connection indication that terminal TDM passage a is connected with TDM passage b, also can't realize this attended operation.
Step 203:MG couples together said terminal in the context corresponding to this calling, finishes current flow process.
Step 204:MG is sent to MGC with failure response.
Can find out that by above description though have the terminal of a large amount of various resources of representative among the MG, MG itself but might not possess any two abilities that the terminal connects.Yet, in the prior art, when MGC connects two specific terminals in indication; Do not consider but whether MG possesses these two abilities that particular terminal connects; Therefore, tend to make MG owing to do not possess, and can't carry out attended operation these two abilities that particular terminal connects; Thereby cause the call proceeding procedure failure, greatly reduce QoS.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of MG of indication to carry out the method that the terminal connects, and to guarantee that MG can effectively carry out the terminal attended operation, guarantees carrying out smoothly of call proceeding process.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of MG that indicates carries out the method that the terminal connects, and comprising: media gateway controller MGC is according to the information of WMG MG to the concatenation ability of different types of terminals, and the end message that MG is possessed concatenation ability is carried to connect in the indication and sends MG.
The MG of MGC institute basis is to be arranged among the MGC in advance to the information of the concatenation ability of different types of terminals.
This method further comprises: the information of MG to the concatenation ability of different types of terminals is set in MG; The order that MGC will obtain end connecting ability is sent to MG; MG sends MGC with the information of set concatenation ability to different types of terminals;
The MG of MGC institute basis obtains through reception the information of the concatenation ability of different types of terminals.
Said order of obtaining end connecting ability is the audit order;
The step that said MG sends MGC with the information of set concatenation ability to different types of terminals comprises: MG is sent to MGC through the information to the concatenation ability of different types of terminals that the response to the audit order will be provided with in self.
Comprise in the said audit order: the terminal that the MG that is used to audit supports connects the parameter S TC of configuration information;
The step that the information to the concatenation ability of different types of terminals that said MG will be provided with in self through the response to audit order is sent MGC comprises: MG connects configuration information with the terminal of self supporting and is carried in the response to the audit order as the value of parameter S TC and is sent to MGC.
Comprise in the said audit order: the unsupported terminal of MG that is used to audit connects the parameter N STC of configuration information;
The step that the information to the concatenation ability of different types of terminals that said MG will be provided with in self through the response to audit order is sent to MGC comprises: MG connects configuration information with self unsupported terminal and is carried in the response to the audit order as the value of parameter N STC and is sent to MGC.
The step that the information to the concatenation ability of different types of terminals of said MG through will be set to the response of audit order is sent to MGC further comprises: MG connects configuration information for the terminal of not confirming content, the said parameter of correspondence is changed to be carried in the response that audit is ordered after the null value be sent to MGC.
Said MG comprises the information of the concatenation ability of different types of terminals: the terminal that MG supports connects configuration information, and/or the unsupported terminal of MG connects configuration information.
When MG comprises that to the information of the concatenation ability of different types of terminals terminal that MG supports connects configuration information and is connected configuration information with the unsupported terminal of MG,
Any one terminal connects configuration and can only appear among terminal that MG supports connects configuration information and the unsupported terminal of MG is connected one in the configuration information, perhaps is connected in the configuration information with the unsupported terminal of MG at the terminal of MG support connection configuration information all not occur.
Said terminal connects configuration information and comprises: the closure between any two kinds of terminal types and this two types of terminals.
Said terminal type comprises: represent the different terminals type of different resource type, and/or, the pairing different terminals type of different specific resources in a kind of resource type.
The value of the closure between said two types of terminals is two-way or unidirectional, and default expression is two-way.
Said terminal type is made an appointment between MGC and MG.
This shows, in the present invention, can be through in MGC, being provided with or passing through the mode of audit MG in advance; Make MGC obtain the information of MG to the concatenation ability of different types of terminals, and, when MGC connects two terminals in indication; According to the information of the MG that is obtained to the concatenation ability of different types of terminals; The terminal information that MG is possessed concatenation ability is carried in the connection indication, like this, can guarantee that then MG can effectively carry out the terminal attended operation; Thereby guaranteed carrying out smoothly of call proceeding process, improved QoS greatly.
Description of drawings
Fig. 1 is that MG carries out the sketch map that the terminal connects.
Fig. 2 indicates MG to carry out the flow chart that the terminal connects in the prior art.
Fig. 3 is that MG can't carry out the sketch map that two terminals of representing the TDM passage are connected.
Fig. 4 is the flow chart of the embodiment of the invention 1.
Fig. 5 is that MG carries out the sketch map that the terminal connects in embodiments of the present invention.
Fig. 6 is the flow chart of the embodiment of the invention 2.
Embodiment
In the prior art,, therefore, when indication connects different terminals, tend to occur MG and can't carry out the terminal attended operation, cause the shortcoming of call proceeding failure because MGC does not understand the concatenation ability of MG to different terminals.To this shortcoming; The present invention proposes a kind of MG of indication and carry out the method that the terminal connects; Its core concept is: when needs carry out call proceeding; MGC is according to the information of MG to the concatenation ability of different types of terminals, and the terminal information that MG is possessed concatenation ability is carried to connect in the indication and is sent to MG.
Wherein, the MG of MGC institute basis can be to be pre-configured among the MGC to the information of the concatenation ability of different terminals, also can be to be configured among the MG, and send to MGC's by MG.
For making the object of the invention, technical scheme and advantage clearer, the present invention is done to describe in detail further below in conjunction with accompanying drawing and specific embodiment.
Embodiment 1:
In the present embodiment, with in advance in MGC configuration MG be example to the information of the concatenation ability of different terminals, implementation procedure of the present invention is described.
Fig. 4 is the flow chart of the embodiment of the invention 1.Referring to Fig. 4, in the present invention, the process that MGC indication MG carries out the terminal connection may further comprise the steps:
Step 401: between MG and MGC, arrange terminal type in advance.
Here, described terminal type can comprise: represent the different terminals type of different resource type, such as the terminal type of representing rtp streaming and the terminal type etc. of representing the TDM passage; And/or, the pairing different terminals type of different specific resources in a kind of resource type, this as; For the rtp streaming resource type, the corresponding a kind of terminal type of the rtp streaming that adopts coded system 1 to encode, the corresponding another kind of terminal type of rtp streaming that employing coded system 2 is encoded etc.; For another example; For the rtp streaming resource type, be used for the corresponding a kind of terminal type of special rtp streaming of Lawful Interception, the non-corresponding another kind of terminal type of common rtp streaming that is used for Lawful Interception etc.
Step 402: according to end connecting ability that MG possessed and the terminal type that is had, the information of MG to the concatenation ability of different types of terminals is set in MGC in advance.
Here, the terminal connection configuration information that set MG supports comprising MG in the information of the concatenation ability of different types of terminals, and/or the unsupported terminal of MG connects configuration information.Wherein, write down MG in the terminal connection configuration information that MG supports and on which kind of closure, can carry out attended operation the terminal of any two types; Write down MG in the unsupported terminal connection of the MG configuration information and on which kind of closure, can't carry out attended operation the terminal of any two types.
This as; The terminal that MG supports connects configuration information and is connected the form that configuration information all can be set to tlv triple with the unsupported terminal of MG; " direction between terminal type A, terminal type B, terminal type A and the B ", wherein, the direction between terminal type A and the B is two-way or unidirectional.Connect in the configuration information at the terminal that MG supports; If the direction between terminal type A and the B is two-way; This tlv triple representes, it is that the terminal of A is connected to terminal that type is B and is that the terminal of B is connected to the concatenation ability that type is the terminal both direction of A with type that MG possesses type; If the direction between terminal type A and the B is unidirectional, this tlv triple representes, it is that the terminal of A is connected to the concatenation ability that type is the terminal of B that MG possesses type.Connect in the configuration information at the unsupported terminal of MG; If the direction between terminal type A and the B is two-way; This tlv triple is represented; It is that the terminal of A is connected to the concatenation ability that type is the terminal of B that MG neither possesses type, and also not possessing type is that the terminal of B is connected to the concatenation ability that type is the terminal of A; If the direction between terminal type A and the B is unidirectional, this tlv triple representes, it is that the terminal of A is connected to the concatenation ability that type is the terminal of B that MG does not possess type.
In addition, in described tlv triple, the direction between two terminal types can be default, if default, representes that then the direction between these two terminal types is two-way.Such as; Connect in the configuration information at the terminal that MG supports and to comprise " terminal type A, terminal type B ", it is that the terminal of A is connected to terminal that type is B and is that the terminal of B is connected to the concatenation ability of both direction that type is the terminal of A with type that expression MG possesses type.
Need to prove that any one terminal connects configuration and can only appear among terminal that MG supports connects configuration information and the unsupported terminal of MG is connected in the configuration information, and can not occur simultaneously.
Step 403: when needs carried out call proceeding, MGC was according to the information of set MG in self to the concatenation ability of different types of terminals, and the terminal information that MG is possessed concatenation ability is carried to connect in the indication and is sent to MG.
This as, the terminal that set MG supports in MGC connects in the configuration information and comprises tlv triple " TDM passage rtp streaming, rtp streaming; two-way ", and the set unsupported terminal of MG connects in the configuration information and comprises tlv triple " TDM passage; TDM passage; two-way " in MGC, like this, referring to Fig. 5; When MGC will couple together corresponding to the terminal TDM passage a of MPTY a and terminal TDM passage b corresponding to called party b at needs; The terminal of supporting according to above-mentioned MG connects configuration information and is connected tlv triple in the configuration information with the unsupported terminal of MG and can knows then that MG possesses two are represented the terminal of TDM passage and represent the terminal of rtp streaming to carry out interconnective ability, does not represent the terminal of TDM passage to carry out interconnective ability but do not possess with two, therefore; MGC need indicate MG that terminal TDM passage a is connected in context Context a with rtp streaming a; Terminal TDM passage b is connected in context Context b with rtp streaming b, again rtp streaming a is connected with rtp streaming b, thereby realize that MPTY a is connected with calling between the MPTY b.
Step 404:MG couples together relevant terminal according to the end message in the connection indication that receives.
Here; Referring to Fig. 5; MG is connected with rtp streaming a terminal TDM passage a according to end message in the connection indication that receives in context Context a, terminal TDM passage b is connected in context Context b with rtp streaming b; Again rtp streaming a is connected with rtp streaming b, thereby realizes that MPTY a is connected with calling between the MPTY b.
Embodiment 2:
In the present embodiment, so that configuration MG is to the information of the concatenation ability of different terminals in MG in advance, and to send to MGC be example, and implementation procedure of the present invention is described.
Fig. 6 is a flow chart of realizing embodiments of the invention 2.Referring to Fig. 6, in the present invention, the process that MGC indication MG carries out the terminal connection may further comprise the steps:
Step 601 is all identical with all descriptions of step 401.
The process of step 602 is identical with the process of step 402; Only need to be revised as " information of MG to the concatenation ability of different types of terminals is set " in the step 602 with " information of MG to the concatenation ability of different types of terminals being set " in the step 402 in MGC in MG, other descriptions are all identical.
Step 603:MGC will be sent to MG to the audit order of MG end connecting ability.
Here, comprise in the described audit order that terminal that the MG that is used to audit supports connects the parameter S TC of configuration information, and/or the unsupported terminal of MG that is used to audit connects the parameter N STC of configuration information.
After step 604:MG received audit order, according to the included parameter to be audited of audit order, the information to the concatenation ability of different types of terminals that will in self, be provided with was carried in the response to the audit order and is sent to MGC.
The concrete realization of this step can comprise: MG is after receiving the audit order; The terminal that MG is supported connects configuration information and is connected configuration information with the unsupported terminal of MG, and the value as wait to audit parameter parameter S TC and NSTC is carried at being sent to MGC in the response of ordering of auditing respectively.This as, MG will " rtp streaming, rtp streaming, two-way " as the value of STC, and " TDM passage, TDM passage, two-way " as the value of NSTC, be carried in the response to the audit order and be sent to MGC.
In addition, in the present invention, MG can only connect configuration information or the unsupported terminal of MG and connect comprise in the configuration information and definite connect information configured for the terminal at the terminal that MG supports.MG connects configuration information for the terminal of not confirming content, if MGC audits through STC parameter or NSTC parameter in the audit order, so, MG is changed to the said parameter of correspondence to be carried in the response to the audit order after the null value and is sent to MGC.
Step 605:MGC obtains the information of MG to the concatenation ability of different types of terminals from the response to the audit order that receives.
Here, MGC from receive to the response of audit order according to the value of parameter S TC and NSTC, confirm that the terminal connection configuration information that MG supports is connected configuration information with the unsupported terminal of MG.Such as; MGC knows that according to the value of STC in the audit response " TDM passage, rtp streaming, two-way " and the value " TDM passage; TDM passage; two-way " of NSTC MG possesses the terminal of represent the TDM passage and represents the terminal of rtp streaming to carry out interconnective ability, does not represent the terminal of TDM passage to carry out interconnective ability but do not possess with two.
Step 606: when needs carried out call proceeding, MGC was according to the information of the MG that is obtained to the concatenation ability of different types of terminals, and the terminal information that MG is possessed concatenation ability is carried to connect in the indication and is sent to MG.
Here; This as, MGC know MG possess with the terminal of representing the TDM passage with represent the terminal of rtp streaming to carry out interconnective ability, do not represent the terminal of TDM passage to carry out interconnective ability but do not possess with two; Therefore; MGC need indicate MG that terminal TDM passage a is connected in context Context a with rtp streaming a terminal TDM passage b to be connected in context Contextb with rtp streaming b, rtp streaming a to be connected with rtp streaming b again, thereby realizes that MPTY a is connected with calling between the MPTY b.
Step 607 is all identical with all descriptions of step 404.
In above-mentioned process shown in Figure 6, will make MGC obtain the concatenation ability information of MG with response through mutual audit life between MGC and the MG to the audit order to different terminals.In practical business of the present invention is realized, also can be through other message between MGC and the MG mutual, this as, custom command and self-defined response message mutual makes MGC obtain the concatenation ability information of MG to different terminals.
In a word, the above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the method that connects of an indicating media gateway executing terminal; It is characterized in that; This method comprises: media gateway controller MGC is according to the information of WMG MG to the concatenation ability of different types of terminals, and the end message that MG is possessed concatenation ability is carried to connect in the indication and is sent to MG.
2. method according to claim 1 is characterized in that, the MG of MGC institute basis is to be arranged among the MGC in advance to the information of the concatenation ability of different types of terminals.
3. method according to claim 1 is characterized in that, this method further comprises: the information of MG to the concatenation ability of different types of terminals is set in MG; The order that MGC will obtain end connecting ability is sent to MG; MG is sent to MGC with the information of set concatenation ability to different types of terminals;
The MG of MGC institute basis obtains through reception the information of the concatenation ability of different types of terminals.
4. method according to claim 3 is characterized in that, said order of obtaining end connecting ability is the audit order;
Said MG comprises the step that the information of set concatenation ability to different types of terminals is sent to MGC: MG is sent to MGC through the information to the concatenation ability of different types of terminals that the response to the audit order will be provided with in self.
5. method according to claim 4 is characterized in that, comprises in the said audit order: the terminal that the MG that is used to audit supports connects the parameter S TC of configuration information;
The step that the information to the concatenation ability of different types of terminals that said MG will be provided with in self through the response to audit order is sent to MGC comprises: MG connects configuration information with the terminal of self supporting and is carried in the response to the audit order as the value of parameter S TC and is sent to MGC.
6. method according to claim 4 is characterized in that, comprises in the said audit order: the unsupported terminal of MG that is used to audit connects the parameter N STC of configuration information;
The step that the information to the concatenation ability of different types of terminals that said MG will be provided with in self through the response to audit order is sent to MGC comprises: MG connects configuration information with self unsupported terminal and is carried in the response to the audit order as the value of parameter N STC and is sent to MGC.
7. according to claim 5 or 6 described methods; It is characterized in that; The step that the information to the concatenation ability of different types of terminals of said MG through will be set to the response of audit order is sent to MGC further comprises: MG connects configuration information for the terminal of not confirming content, the said parameter of correspondence is changed to be carried in the response that audit is ordered after the null value be sent to MGC.
8. according to any described method in the claim 1 to 6, it is characterized in that said MG comprises the information of the concatenation ability of different types of terminals: the terminal that MG supports connects configuration information, and/or the unsupported terminal of MG connects configuration information.
9. method according to claim 8 is characterized in that, when MG comprises that to the information of the concatenation ability of different types of terminals terminal that MG supports connects configuration information and is connected configuration information with the unsupported terminal of MG,
Any one terminal connects configuration and can only appear among terminal that MG supports connects configuration information and the unsupported terminal of MG is connected one in the configuration information, perhaps is connected in the configuration information with the unsupported terminal of MG at the terminal of MG support connection configuration information all not occur.
10. method according to claim 8 is characterized in that, said terminal connects configuration information and comprises: the closure between any two kinds of terminal types and this two types of terminals.
11. method according to claim 10 is characterized in that, said terminal type comprises: represent the different terminals type of different resource type, and/or, the pairing different terminals type of different specific resources in a kind of resource type.
12. method according to claim 10 is characterized in that, the value of the closure between said two types of terminals is two-way or unidirectional, and default expression is two-way.
13., it is characterized in that said terminal type is made an appointment between MGC and MG according to claim 10,11 or 12 described methods.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101896603A CN101442815B (en) | 2006-06-26 | 2006-06-26 | Method for indicating implement terminal connection of medium gateway |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101896603A CN101442815B (en) | 2006-06-26 | 2006-06-26 | Method for indicating implement terminal connection of medium gateway |
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| CNB2006100926157A Division CN100450116C (en) | 2006-06-26 | 2006-06-26 | Method for indicating media gateway executing terminal connection |
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| CN101442815A CN101442815A (en) | 2009-05-27 |
| CN101442815B true CN101442815B (en) | 2012-07-04 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1579102A (en) * | 2001-10-08 | 2005-02-09 | 艾利森电话股份有限公司 | Method and system for managing call in telecommunication system |
| CN1595917A (en) * | 2003-09-08 | 2005-03-16 | 华为技术有限公司 | System and method for communication between media gateway controller and media gateway |
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- 2006-06-26 CN CN2008101896603A patent/CN101442815B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1579102A (en) * | 2001-10-08 | 2005-02-09 | 艾利森电话股份有限公司 | Method and system for managing call in telecommunication system |
| CN1595917A (en) * | 2003-09-08 | 2005-03-16 | 华为技术有限公司 | System and method for communication between media gateway controller and media gateway |
Non-Patent Citations (1)
| Title |
|---|
| C. Groves ET AL.Gateway Control Protocol Version 1.RFC3525.2003,第56至60页，第184至194页. * |
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