CN101136907A - Relay media gateway media conversion control method in next generation network - Google Patents
Relay media gateway media conversion control method in next generation network Download PDFInfo
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- CN101136907A CN101136907A CNA2006101123269A CN200610112326A CN101136907A CN 101136907 A CN101136907 A CN 101136907A CN A2006101123269 A CNA2006101123269 A CN A2006101123269A CN 200610112326 A CN200610112326 A CN 200610112326A CN 101136907 A CN101136907 A CN 101136907A
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Abstract
In current architecture on next generation network (NGN), there is no related scheme for solving issue that in actual media intercommunication, it is needed to carry out media conversion when unmatched condition between media stream supported by users on TMG-FE and media stream at called opposite end occurs. The invention includes steps: (1) the calling end requests media resource control functional entity (MRCFE) to carry out media stream conversion (MSC) between calling end and called end; (2) MRCFE determines whether MSC between calling end and called end is possible, and sends the determined result to the calling end; (3) if yes, the media resource process functional entity controlled by MRCFE carries out MSC between calling end and called end. When media descriptions are not matched between user at this end and user at remote end, the invention makes media communication carry out possibly.
Description
Technical field
The present invention relates to the Trunk Media Gateway control technology, in particular, is the control method of Trunk Media Gateway media conversion in a kind of next generation network.
Background technology
Next generation network (Next Generation Network is called for short NGN) is the description of International Telecommunication Union to the next generation network technology standard.The framework of ITU NGN comprises operation layer, transport layer.Operation layer comprises functional entity (the Functional Entity of miscellaneous service control, be called for short FE), be called for short AGC-FE as conversation control function entity (Serving Call Session ControlFunctional Entity is called for short S-CSC-FE), access gateway control function entity Access Gateway Control FunctionalEntity) etc.Transport layer comprises that various transfer function entities are (as IAD functional entity Access MediaGateway Functional Entity, be called for short AMG-FE) and transmit the controlled function entity (as resource and access control function Resource and Admission Control Functions, be called for short RACF, and network attachment controlled function NetworkAttachment Control Functions, be called for short NACF).The configuration diagram of ITU NGN as shown in Figure 1.
MGCF entity (Media Gateway Control Functional Entity, be called for short MGC-FE) be a kind of operation layer gateway control function entity in the ITUNGN framework, mainly finish the control of (Trunk MediaGateway FE is called for short TMG-FE) of transport relay media gateway.
MRC-FE is the media resource controlled function entity among the NGN, carries out the functions such as conversion of Media Stream by control MRP-FE (media resource processing capacity entity);
In the Media Stream of reality is mutual, exist TMG-FE to go up the Media Stream that the user supported and call out the opposite end Media Stream situation that do not match, at this moment just need media conversion (Transcoding) function, in the existing NGN framework this there is not relevant programme.
Summary of the invention
At defective and the deficiency that prior art exists, the invention provides the control method of Trunk Media Gateway media conversion in a kind of next generation network, between unmatched calling terminal of media capability and calling opposite end, carry out media stream transition.
In order to reach the foregoing invention purpose, Trunk Media Gateway media conversion control method in the next generation network of the present invention may further comprise the steps:
(1) calling terminal request media resource controlled function entity carries out media stream transition between calling terminal and calling opposite end;
(2) media resource controlled function entity judges that can the media resource processing capacity entity of self controlling carry out media stream transition for calling terminal and calling opposite end, and judged result is sent to calling terminal;
(3) can and call out the opposite end and carry out media stream transition for calling terminal if media resource controlled function entity is judged, the media stream transition that the media resource processing capacity entity of media resource controlled function entity control sends calling terminal is to call out the Media Stream of opposite end media description, sends to call out the opposite end; With the media stream transition of calling out the opposite end transmission is the Media Stream of calling terminal media description, sends to calling terminal.
Wherein, step (1) further may further comprise the steps:
(11) calling terminal with call out the opposite end and set up signaling by media gateway controlling entity separately respectively and communicate by letter;
(12) calling terminal obtains to call out the media description information of opposite end;
(13) calling terminal sends the order of medium matching request by the media gateway controlling entity to media resource controlled function entity, and the order of described medium matching request comprises the calling terminal media description information and calls out the opposite end media description information.
Wherein, described calling terminal media description information and calling opposite end media description information all comprise IP address, port numbers, code decode algorithm.
In the Trunk Media Gateway media conversion control method, step (2) further may further comprise the steps in the above-mentioned next generation network:
(21) media resource controlled function entity carries out the The matching analysis between calling terminal medium and the calling opposite end medium, and control media resource processing capacity entity is set up the media stream transition passage between calling terminal and the calling opposite end;
(22) if media resource processing capacity entity can be set up the media stream transition passage between calling terminal and the calling opposite end, media resource controlled function entity returns to calling terminal receives information; Otherwise media resource controlled function entity returns refusal information to calling terminal.
In the Trunk Media Gateway media conversion control method, media resource controlled function entity returns to calling terminal by the order of medium match responding and receives information or refusal information in the described step (22) in the above-mentioned next generation network.
In the Trunk Media Gateway media conversion control method, described step (3) further may further comprise the steps in the above-mentioned next generation network:
(31) if media resource controlled function entity returns to that the medium match responding order of calling terminal comprises is to receive information, it is mutual that the media resource processing capacity entity under calling terminal and the control of media resource controlled function entity carries out medium with the Media Stream of calling terminal media description; Calling out media resource processing capacity entity under opposite end and the control of media resource controlled function entity, to carry out medium with the Media Stream of calling opposite end media description mutual;
(32) media resource processing capacity entity for calling out the Media Stream of opposite end media description, sends to the media stream transition of calling terminal transmission to call out the opposite end; With the media stream transition of calling out the opposite end transmission is the Media Stream of calling terminal media description, sends to calling terminal.
By Trunk Media Gateway media conversion control method in the next generation network of the present invention, when the media description of this end subscriber and remote subscriber does not match, the TMG-FE at this end subscriber and remote subscriber place can change the media capability that oneself is supported, still can carry out the medium communication between the user.
Description of drawings
Fig. 1 is that control interface of the present invention is described;
Fig. 2 is an enforcement structural representation of the present invention;
Fig. 3 is an implementing procedure schematic diagram of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the present invention realizes Trunk Media Gateway media conversion control method among the NGN, comprises following control interface description:
MGC-FE sends the order of medium matching request to MRC-FE, and basic parameter comprises local terminal (media description and opposite end media description (comprising information such as IP address, port numbers, code decode algorithm) etc.
MRC-FE sends the order of medium match responding to MGC-FE, and basic parameter comprises information such as acceptance or refusal.If MRP-FE can satisfy local terminal media description and the needed media resource demand of opposite end media description, then send and receive information, otherwise send refusal information.
As shown in Figure 2, for Trunk Media Gateway media conversion control method among a kind of realization of the present invention NGN, it is implemented structural representation and comprises following entity:
MGC-FE1, TMG-FE1, and the User1 that belongs to above-mentioned entity control;
MGC-FE2, TMG-FE2, and the User2 that belongs to above-mentioned entity control;
MRC-FE and MRP-FE, MRC-FE are mainly used in and carry out signaling exchange with MGC-FE and finish controlled function to MRP-FE, and MRP-FE is mainly used in the control of accepting MRC-FE and carries out medium and handle;
As shown in Figure 3, for Trunk Media Gateway media conversion control method among a kind of realization of the present invention NGN, its process flow is as follows:
Step 301:User1 and User2 set up the signaling communication by MGC-FE1 and MGC-FE2 respectively, and User1 obtains the User2 media description information;
Step 302:MGC-FE1 analyzes the User2 media description, finds that User1 and User2 media capability do not match;
Step 303:MGC-FE1 sends the order of medium matching request to MRC-FE, and basic parameter comprises local terminal (User1) media description and opposite end (User2) media description (comprising information such as IP address, port numbers, code decode algorithm) etc.
Step 304:MRC-FE carries out the medium The matching analysis and controls the media stream transition passage that MRP-FE sets up the media description of User1 and User2;
Step 305:MRC-FE sends the order of medium match responding to MGC-FE1, and basic parameter comprises information such as acceptance or refusal.If MRP-FE can satisfy User1 media description and the needed media resource demand of User2 media description, then send and receive information, otherwise send refusal information;
Step 306: if the medium match responding order that MRC-FE sends to MGC-FE1 is to accept, it is mutual that User1 and MRP-FE carry out medium with the media description of User1;
Step 307: if the medium match responding order that MRC-FE sends to MGC-FE1 is to accept, it is mutual that User2 and MRP-FE carry out medium with the media description of User2;
Step 308:MRP-FE carries out media conversion between the Media Stream of the media description of User1 and User2.
Step 309:User1 and User2 begin the medium communication.
Although with reference to embodiment to disclosed relate to providing realize that Trunk Media Gateway media conversion control method has been carried out special description among the NGN, those skilled in the art can understand, under the situation that does not depart from scope and spirit of the present invention, can carry out all conspicuous modification of form and details to it, for example, since improving and renewal of NGN framework, same being suitable in the essence of technical scheme of the present invention.Therefore, embodiment described above is illustrative and not restrictive, and under the situation that does not break away from the spirit and scope of the present invention, all variations and modification are all within the scope of the present invention.
Claims (6)
1. Trunk Media Gateway media conversion control method in the next generation network is characterized in that: may further comprise the steps:
(1) calling terminal request media resource controlled function entity carries out media stream transition between calling terminal and calling opposite end;
(2) media resource controlled function entity judges that can the media resource processing capacity entity of self controlling carry out media stream transition for calling terminal and calling opposite end, and judged result is sent to calling terminal;
(3) can and call out the opposite end and carry out media stream transition for calling terminal if media resource controlled function entity is judged, the media stream transition that the media resource processing capacity entity of media resource controlled function entity control sends calling terminal is to call out the Media Stream of opposite end media description, sends to call out the opposite end; With the media stream transition of calling out the opposite end transmission is the Media Stream of calling terminal media description, sends to calling terminal.
2. Trunk Media Gateway media conversion control method in the next generation network according to claim 1 is characterized in that: step (1) further may further comprise the steps:
(11) calling terminal with call out the opposite end and set up signaling by media gateway controlling entity separately respectively and communicate by letter;
(12) calling terminal obtains to call out the media description information of opposite end;
(13) calling terminal sends the order of medium matching request by the media gateway controlling entity to media resource controlled function entity, and the order of described medium matching request comprises the calling terminal media description information and calls out the opposite end media description information.
3. Trunk Media Gateway media conversion control method in the next generation network according to claim 2 is characterized in that: described calling terminal media description information and calling opposite end media description information all comprise IP address, port numbers, code decode algorithm.
4. Trunk Media Gateway media conversion control method in the next generation network according to claim 1 is characterized in that: step (2) further may further comprise the steps:
(21) media resource controlled function entity carries out the The matching analysis between calling terminal medium and the calling opposite end medium, and control media resource processing capacity entity is set up the media stream transition passage between calling terminal and the calling opposite end;
(22) if media resource processing capacity entity can be set up the media stream transition passage between calling terminal and the calling opposite end, media resource controlled function entity returns to calling terminal receives information; Otherwise media resource controlled function entity returns refusal information to calling terminal.
5. Trunk Media Gateway media conversion control method in the next generation network according to claim 4 is characterized in that: media resource controlled function entity returns to calling terminal by the order of medium match responding and receives information or refusal information in the described step (22).
6. Trunk Media Gateway media conversion control method in the next generation network according to claim 1 or 5, it is characterized in that: described step (3) further may further comprise the steps:
(31) if media resource controlled function entity returns to that the medium match responding order of calling terminal comprises is to receive information, it is mutual that the media resource processing capacity entity under calling terminal and the control of media resource controlled function entity carries out medium with the Media Stream of calling terminal media description; Calling out media resource processing capacity entity under opposite end and the control of media resource controlled function entity, to carry out medium with the Media Stream of calling opposite end media description mutual;
(32) media resource processing capacity entity for calling out the Media Stream of opposite end media description, sends to the media stream transition of calling terminal transmission to call out the opposite end; With the media stream transition of calling out the opposite end transmission is the Media Stream of calling terminal media description, sends to calling terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101123269A CN100550911C (en) | 2006-09-01 | 2006-09-01 | Trunk Media Gateway media conversion control method in the next generation network |
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| CNB2006101123269A CN100550911C (en) | 2006-09-01 | 2006-09-01 | Trunk Media Gateway media conversion control method in the next generation network |
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| CN101136907A true CN101136907A (en) | 2008-03-05 |
| CN100550911C CN100550911C (en) | 2009-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101123269A Expired - Fee Related CN100550911C (en) | 2006-09-01 | 2006-09-01 | Trunk Media Gateway media conversion control method in the next generation network |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271137A (en) * | 2011-08-19 | 2011-12-07 | 中兴通讯股份有限公司 | Media server |
| CN111404862A (en) * | 2019-01-02 | 2020-07-10 | 中国移动通信有限公司研究院 | Multimedia processing method and equipment |
-
2006
- 2006-09-01 CN CNB2006101123269A patent/CN100550911C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271137A (en) * | 2011-08-19 | 2011-12-07 | 中兴通讯股份有限公司 | Media server |
| CN102271137B (en) * | 2011-08-19 | 2017-11-10 | 中兴通讯股份有限公司 | A kind of media server |
| CN111404862A (en) * | 2019-01-02 | 2020-07-10 | 中国移动通信有限公司研究院 | Multimedia processing method and equipment |
| CN111404862B (en) * | 2019-01-02 | 2022-09-13 | 中国移动通信有限公司研究院 | Multimedia processing method and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100550911C (en) | 2009-10-14 |
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