CN100571253C - A kind of RTP resource control distributed approach - Google Patents
A kind of RTP resource control distributed approach Download PDFInfo
- Publication number
- CN100571253C CN100571253C CNB2003101134804A CN200310113480A CN100571253C CN 100571253 C CN100571253 C CN 100571253C CN B2003101134804 A CNB2003101134804 A CN B2003101134804A CN 200310113480 A CN200310113480 A CN 200310113480A CN 100571253 C CN100571253 C CN 100571253C
- Authority
- CN
- China
- Prior art keywords
- module
- ipbcp
- resource
- request
- link setup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a kind of carrying and control distributed approach with the RTP resource that control is separated, at first by H.248 initiating the link setup request to IPBCP, then IPBCP initiates to apply for the request of RTP resource to the database processing module of correspondence after receiving this link setup request, the database processing module is carried out the multimode resource lookup according to this application request, send application resource response message by the database module that finds resource to its corresponding IPBCP module, after the IPBCP module is received this database application RTP resource response message, if application resource success, then for handling this connection request for data district, if request for data district success, then Calling Side sends link setup request tunnel message to opposite end IPBCP module, the tunnel message of wait opposite end is replied, callee side sends link setup command to RTP, wait for the operation acknowledge that RTP connects, reasonable use of the present invention system resource, satisfied the requirement of smooth upgrade system, have the ability of handling big capacity gateway, solved the problem that gateway load is shared in the NGN system.
Description
Technical field
The present invention relates to a kind of RTP (Real-time Transport Protocol, RTP) resource control and treatment method, particularly relate to a kind of RTP resource that is applied to carry and control in the communication network that is separated and control distributed approach.
Background technology
Next generation network is NGN (Next Generation Network), is a kind of comprehensive, network system that standard-sized sheet is put that multiple business such as speech, data, multimedia can be provided simultaneously, as WCDMA/CDMA2000/TD-SCDMA/SOFTSWITCH etc.The protocol interface of the network configuration of NGN by adopting layering, standard and based on the packet network system of uniform protocol has not only been realized the fusion of network, the more important thing is and has realized professional fusion.
H.248 agreement is adopted by tissues such as 3GPP/3GPP2, as the NGN network carrying and the consensus standard that separates of control, be mainly used in MGC (Media Gateway Controller, Media Gateway Controller) and MGW (Media Gateway, media gateway) control is set up in gateway control between and carrying, H.248 protocol entity is realized carrying and separating of controlling to the concrete operations of various hello protocol shieldings to carrying.The target of separating is to make business really be independent of network, to realize professional control flexibly effectively and to provide.User and operator can dispose and define the service feature of oneself voluntarily, needn't be concerned about the latticed form and the terminal type of bearer service.
(IP Bear Control Protocol IPBCP) can be used in the exchange of media stream characteristics, port numbers and source IP address between Media Stream information source/stay of two nights to IP Bearer Control Protocol, to set up and to revise the IP carrying.Information interaction between the IPBCP protocol entity can be during call setup, also can be after call setup.IPBCP uses conversation description symbol agreement that information is encoded.
The RTP resource is meant medium face IP address, port and the supported media formats thereof of this gateway.After an IP connection had been set up by chain of command, media data was to come control transmission by RTP and RTCP (Real-timeTransport Control Protocol, RTCP Real-time Transport Control Protocol).
When concrete IP carrying operation, send carrying by the H.248 protocol entity on the gateway to the IPBCP protocol entity and set up and carry release command, the tunnel and the mutual bear control information of IPBCP protocol entity of opposite end that the IPBCP protocol entity provides by calling out control, IPBCP carries out that the tunnel message head is handled and the encoding and decoding processing of tunnel message.The tunnel message that IPBCP sent need be handled through bearing tunnel control (BCTP) agreement, and the content of text in the tunnel message need be through the processing of conversation description symbol (SDP) agreement.
Yet, in the NGN system, the MGC disposal ability has above demand (such as the MSC-SERVER of 3GPP) 1000 calling/seconds, simple veneer processing mode is because the restriction of resource, the limitation of the disposal ability of CPU for example, can not satisfy the increase of system requirements, the disposal ability of gateway is relevant with calling, the quantity increase of calling out means that then the processing burden of gateway is also increasing, this must consider to carry out multimode with regard to the whole gateway of needs and handle when designing, the control of RTP resource also needs to design the distributed approach of corresponding RTP resource control, therefore as a pith of chain of command on the media gateway, how to design a kind of RTP resource control and treatment method, so that rationally utilize system resource, handle the requirement of smooth upgrade system, become problem demanding prompt solution in the industry.
Summary of the invention
Technical problem to be solved by this invention provides a kind of RTP resource control distributed approach, and level and smooth expansion disposal ability can be provided, and to handle the needs of big capacity gateway, solves the problem that gateway load is shared in the NGN system.
To achieve these goals, the invention provides a kind of RTP resource control distributed approach, be used for carrying and controlling the communication network that is separated, comprise H.248 module, IPBCP module and database module is characterized in that described database module and IPBCP module adopt distributed processing, a distributed data library module and an IPBCP processing module cooperation with service, upwards, comprise the steps: for H.248 module shielding resource multimode operation
(1) H.248 module is initiated the link setup request to the IPBCP module;
(2) the IPBCP module initiates to apply for the request of RTP resource to the database module of correspondence after receiving this link setup request;
(3) database module is carried out the multimode resource lookup according to this application request;
(4) send application resource response message by the database module that finds resource to its corresponding IPBCP module;
(5) after this IPBCP module is received this database module application RTP resource response message, if the success of application resource, then for would handling this connection request request for data district;
(6) if the success of IPBCP module request for data district, then initiatively the link setup end sends link setup request tunnel message to opposite end IPBCP module, the tunnel message of wait opposite end is replied, and passive link setup end sends link setup command to the Real-time Transport Protocol entity, waits for the operation acknowledge that the Real-time Transport Protocol entity connects.
In the described step (1),, then be considered to initiatively link setup end if H.248 module utility command interface is initiated the request of connecting to the IPBCP module; If H.248 module uses the tunnel message interface to initiate connection request, then be considered to passive link setup end.
In the described step (2), the IPBCP module all writes the parameter that needs keep in the request message of database module simultaneously, after through described step (3), step (4), replying together with all parameters of resource allocation is together returned to the IPBCP module.
In the described step (3), described database module is according to the operating position of current RTP resource and distribution mechanism, carries out the multimode resource lookup, when the inadequate resource of a module, to next module application resource, up to applying for resource.
In the described step (5), receive response message after, to the IPBCP module request protocol data of initiating resource bid.
In the described step (5), if application resource failure, the IPBCP module is to module report failed message H.248, simultaneously according to the type of initiating to set up message, if link setup end initiatively, then to the H.248 module report link setup failed message of local terminal; If passive link setup end, then by module H.248 to the tunnel message of the IPBCP of far-end protocol entity report failure.
In the described step (6), if the failure of IPBCP module request for data district, then according to the type of initiating to set up message, if active link setup end, then to the H248 of local terminal module report link setup failed message; If passive link setup end, the then tunnel message of failing to the report of the IPBCP of far-end protocol entity.
The present invention relies on the inside story of each processing module of gateway mutual, realize the distributed treatment of RTP resource control, when the inadequate resource of a module, system according to the design the resource allocation criterion to next module application resource, up to applying for resource, if all modules all do not have operable resource, then to H.248 module report application resource failure, therefore reasonable use system resource, satisfied the requirement of smooth upgrade system, having the ability of handling big capacity gateway, solved the problem that gateway load is shared in the NGN system, is the key technology that solves big capacity MGW in the NGN system.
Description of drawings
Fig. 1 is a network environment schematic diagram of the present invention;
Fig. 2 is the interactive relation of Real-time Transport Protocol entity and other protocol entity;
Fig. 3 is that the IP carrying connects the state of a control transition diagram;
Fig. 4 is the schematic diagram of RTP resource control distributed approach of the present invention;
Fig. 5 is the embodiment flow chart of RTP resource control distributed approach of the present invention.
Embodiment
Figure 1 shows that network environment schematic diagram of the present invention, between gateway controller and gateway, Mc interface is arranged, include a plurality of H.248 modules and corresponding a plurality of RTP resource control modules in the gateway.
Fig. 2 is the graph of a relation of Real-time Transport Protocol entity and other protocol entity.Realized simultaneously that in RTP resource control module carrying control tunnel passes agreement (BCTP), the IP connection protocol is divided into two parts of SDP encoding and decoding and IP carrying connection management, and this Module Division helps RTP resource control module to be increased with module H.248 or revises wherein command interface.
H.248 the processing module of large-capacity distributing gateway comprises processing module H.248 module, RTP resource control module, database module, and three modules are finished the protocol function on the chain of command on the gateway jointly.RTP resource control module among the present invention is exactly to realize management function to RTP resource in the Database Systems in conjunction with the IPBCP agreement, with the IP bearing link of setting up or deletion is corresponding, realize the function of carrying control, the operation of the IP bearing link here is the operation to a virtual link, corresponding to opening or close an IP port.
When the carrying between media gateway was the IP carrying, H.248 module need be operated the RTP resource by RTP resource control module, and at this moment, RTP resource control module and database module are collaborative, upwards was the H.248 operation of module shielding RTP resource multimode.Relate to RTP resource control module and may initiate by command interface, also may initiate by the tunnel information of module transparent transmission H.248 with the operation-interface of module H.248.
Fig. 3 is that the IP carrying connects the state of a control transition diagram.According to the needs of working control RTP resource, the IP carrying is connected from being divided into 5 states in logic: initial state, the initial condition of IP carrying; Go out to set up state, accept the state that module is H.248 set up the IP connection request; Go into to set up state, accept the opposite end tunnel message, the IP connection status is set up in request; Set up attitude, successfully set up the state that IP connects; Discharge attitude, receive the request of release, wait for the state that the RTP operational module is confirmed.
Fig. 4 is the schematic diagram of RTP resource control distributed approach of the present invention.Conveniently used IPBCP to represent RTP resource control module in order to represent in the drawings, H.248 the corresponding data library module of DB is used to refer to corresponding H.248 module.In the drawings, the corresponding gateway distributed processing unit of empty frame has comprised H.248 module, the IPBCP module, and the distributed data library module, a distributed data base module management part resource is an IPBCP module service.(step 1) if H.248 module utility command interface is initiated the request of connecting to the IPBCP module, then is considered to initiatively link setup end when H.248 module is to the request of IPBCP module initiation link setup; If H.248 module is used the tunnel message interface, then be considered to passive link setup end.This moment, the IPBCP module was initiated the request (step 2) of application RTP resource module to the database module of correspondence, and the parameter that needs keep is all write request message to Database Systems, and this moment, the IPBCP module was not set up the data field.Database Systems are carried out resource lookup, at last replying together with IPBCP module parameter incidentally of resource allocation are together returned to IPBCP module (step 3,4), and the IPBCP module is set up the data field at this moment replying of database handled (step 5).It is not very greatly that the kind of the parameter that the suitable H.248 module initiation of this method connects and number change, if parameter alters a great deal, can cause the interface variation of IPBCP module and database very big yet yet, influences system stability.This moment is as the expansion of this method, then the IPBCP module when initiating the request of resource bid to database not to database related protocol data incidentally, the interface that has so just kept between database and the IPBCP module is unified, the IPBCP module is after receiving the replying of database, to the module request protocol data (step 6 of initiating resource bid, 7), after obtaining the corresponding protocol data, send replying of connecting to module H.248.
Fig. 5 is the embodiment flow chart of RTP resource control distributed approach of the present invention, comprises initiatively link setup end and passive link setup end flow process.In this embodiment flow process, adopted fairly simple flow process mode, promptly not to any protocol data of IPBCP initiation module request, but incidentally finish by Database Systems.The IPBCP module receive module H.248 set up IP bind command or tunnel pass set up the IP bind command after, send application RTP resource request message to this module database process.Database Systems are carried out the multimode resource lookup according to the operating position and the distribution mechanism of current RTP resource, finally send application resource response message by the module that finds resource to its corresponding IPBCP module.After the IPBCP module receives that database application RTP resource is replied, at first judge whether to apply for successfully, if application failure, to the report of module H.248 failed message, simultaneously according to the type of initiating to set up message, to local terminal H.248 comprise the link setup failed message, perhaps by module H.248 to the tunnel message of the IPBCP of far-end protocol entity report failure.As if applying for that successfully then for handling this connection request request for data district, if the failure of request for data district, then the H.248 module to local terminal comprises the link setup failed message or reports failed message to the IPBCP of far-end protocol entity.If the success of IPBCP module request for data district, then initiatively the link setup end sends link setup request tunnel message to opposite end IPBCP protocol entity, and connection status enters into out the state of foundation, waits for that the tunnel message of opposite end is replied; Passive link setup end sends link setup command to the Real-time Transport Protocol entity, waits for the operation acknowledge that the Real-time Transport Protocol entity connects.
Claims (6)
1, a kind of RTP resource control distributed approach, be used for carrying and controlling the communication network that is separated, comprise H.248 module, IPBCP module and database module, it is characterized in that described database module and IPBCP module adopt distributed processing, a distributed data library module and an IPBCP module cooperative service upwards for H.248 module shielding resource multimode operation, comprise the steps:
(1) H.248 module is initiated the link setup request to the IPBCP module, wherein, if H.248 module utility command interface is initiated the request of connecting to the IPBCP module, then is considered to initiatively link setup end; If H.248 module uses the tunnel message interface to initiate connection request, then be considered to passive link setup end;
(2) the IPBCP module initiates to apply for the request of RTP resource to the database module of correspondence after receiving this link setup request;
(3) database module is carried out the multimode resource lookup according to this application request;
(4) send application resource response message by the database module that finds resource to its corresponding IPBCP module;
(5) after this IPBCP module is received this database module application RTP resource response message, if the success of application resource, then for would handling this connection request for data district;
(6) if the success of request for data district, then initiatively the link setup end sends link setup request tunnel message to opposite end IPBCP module, the tunnel message of wait opposite end is replied, and passive link setup end sends link setup command to the Real-time Transport Protocol entity, waits for the operation acknowledge that the Real-time Transport Protocol entity connects.
2, the method for claim 1, it is characterized in that described step (2), the IPBCP module all writes the parameter that needs keep in the request message of database module simultaneously, after through described step (3), step (4), replying together with all parameters of resource allocation together returned to the IPBCP module.
3, the method for claim 1, it is characterized in that described step (3), described database module is according to the operating position of current RTP resource and distribution mechanism, carry out the multimode resource lookup, when the inadequate resource of a module, to next module application resource, up to applying for resource.
4, the method for claim 1 is after it is characterized in that receiving response message in the described step (5), to the IPBCP module request protocol data of initiating resource bid.
5, the method for claim 1, it is characterized in that in the described step (5), if application resource failure, the IPBCP module is to the report of module H.248 failed message, simultaneously according to the type of initiating to set up message, if active link setup end is then reported the link setup failed message to the H.248 module of local terminal; If passive link setup end, then by module H.248 to the tunnel message of opposite end IPBCP module report failure.
6, the method for claim 1, it is characterized in that in the described step (6), if request for data district failure, then according to the type of initiating to set up message, if active link setup end, then report the link setup failed message to the H.248 module of local terminal, if passive link setup end, then to opposite end IPBCP module report failed message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101134804A CN100571253C (en) | 2003-11-12 | 2003-11-12 | A kind of RTP resource control distributed approach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101134804A CN100571253C (en) | 2003-11-12 | 2003-11-12 | A kind of RTP resource control distributed approach |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1545290A CN1545290A (en) | 2004-11-10 |
| CN100571253C true CN100571253C (en) | 2009-12-16 |
Family
ID=34336874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101134804A Expired - Fee Related CN100571253C (en) | 2003-11-12 | 2003-11-12 | A kind of RTP resource control distributed approach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100571253C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100466600C (en) * | 2005-03-08 | 2009-03-04 | 华为技术有限公司 | Method for implementing resource preretention of inserted allocation mode in next network |
| CN100349445C (en) * | 2005-03-08 | 2007-11-14 | 华为技术有限公司 | Method for implementing resource preretention of agency requir mode in next network |
| CN100438515C (en) * | 2005-06-14 | 2008-11-26 | 华为技术有限公司 | Edge or packet gateway controlling method in next generation network and its system |
| CN100426805C (en) * | 2005-06-14 | 2008-10-15 | 华为技术有限公司 | Edge or packet gateway control system in next generation network and its method |
| EP1796312A4 (en) | 2005-06-13 | 2008-02-13 | Huawei Tech Co Ltd | An edge/packet gateway control system and a method for achieving the control by the edge/packet gateway |
| CN100411398C (en) * | 2005-06-13 | 2008-08-13 | 华为技术有限公司 | Edge or packet gateway controlling method in next generation network and its system |
| CN1917509B (en) * | 2005-08-19 | 2010-08-18 | 中兴通讯股份有限公司 | Method for establishing IP bearing power based on IPBCP protocol |
| CN100474855C (en) * | 2006-03-09 | 2009-04-01 | 华为技术有限公司 | Method for implementing internal connection in media gateway |
| CN101170546B (en) * | 2006-10-25 | 2011-08-03 | 华为技术有限公司 | Data stream multiplexing method and data stream multiplexing system |
| CN101127772B (en) * | 2007-09-25 | 2011-04-20 | 中兴通讯股份有限公司 | Method for distributed processing of real time transfer of protocol signaling |
| CN101296253B (en) * | 2008-05-22 | 2011-06-22 | 中兴通讯股份有限公司 | Message issuance method, system and user's set |
-
2003
- 2003-11-12 CN CNB2003101134804A patent/CN100571253C/en not_active Expired - Fee Related
Non-Patent Citations (3)
| Title |
|---|
| 计算机应用研究. 朱一群，朱秋萍，全文，多媒体实时传输协议(RTP)的研究 . 2002 邮电设计技术. 卢红波，张依，全文，NGN技术及网络应用. 2003 |
| 计算机应用研究. 朱一群，朱秋萍，全文，多媒体实时传输协议(RTP)的研究. 2002 * |
| 邮电设计技术. 卢红波，张依，全文，NGN技术及网络应用. 2003 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1545290A (en) | 2004-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100571253C (en) | A kind of RTP resource control distributed approach | |
| CN101589638B (en) | Providing interaction management for communication networks | |
| CN101160790A (en) | Multi-party communications service connection establishment method, system and connection control unit | |
| CN101217389B (en) | A method for audio conferencing bridging cascade connection and audio conferencing bridging cascade connection system | |
| CN101079934B (en) | Method and system for utilizing session initialization protocol soft terminal to record the voice | |
| CN101018194A (en) | End-to-end signaling tracking method, system, soft switching and media gateway device | |
| CN101854703A (en) | Method, server and system for acquiring status information | |
| CN100393037C (en) | Method for implementing multi-party conference service in communication network with separated bearing and controlling | |
| CN100562041C (en) | A kind of method and system that in half-duplex call, realize voice record | |
| CN101651816A (en) | Method, device and system for creating videophone session | |
| CN1266885C (en) | Method for realizing monitoring based on soft switch | |
| CN113301025B (en) | IMS audio and video transcoding and transmission control system and implementation method | |
| JP4826792B2 (en) | Relay device, relay method, relay program | |
| CN101217293A (en) | Media operation trusteeship switching system and method | |
| CN101771848A (en) | Video-calling method and system and video communication system among different domains | |
| CN1870609A (en) | Comprehensive media gateway equipment and method of data exchange | |
| CN100401730C (en) | Method for realizing user's self difined recording by media gate control protocol | |
| CN100589493C (en) | Call management system, method for IMS terminal, and IMS terminal | |
| CN101378391B (en) | Method and communication system for implementing medium service as well as relevant equipment | |
| CN101110755B (en) | Multimedia resource function system | |
| CN101146247B (en) | Method for providing mobile network with value-added service | |
| CN100375482C (en) | Method of implementing user self defined sound recording using MEGACO protocol | |
| CN101878628B (en) | A method for negotiating the redundant transmission | |
| CN101175303B (en) | System and device for implementing core net resource sharing and calling method of the system | |
| CN100372398C (en) | Method for realizing sharing link for digital cluster system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091216 Termination date: 20151112 |
|
| EXPY | Termination of patent right or utility model |