CN102244842A - Method for realizing polyphonic ringtone service, polyphonic ringtone service front-end processor and system - Google Patents
Method for realizing polyphonic ringtone service, polyphonic ringtone service front-end processor and system Download PDFInfo
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Abstract
The invention discloses a method for realizing polyphonic ringtone service, a polyphonic ringtone service front-end processor and a system. The method comprises the following steps: a calling subscriber initiates a call, the call is connected to a core network, and the core network establishes connection with a mobile switching center (MSC) Server of a polyphonic ringtone service front-end processor; the MSC Server of the polyphonic ringtone service front-end processor converts signaling transmitted by the core network into a signaling message of the polyphonic ringtone service front-end processor communication, and transmits the signaling message to the polyphonic ringtone service front-end processor; the polyphonic ringtone service front-end processor triggers polyphonic ringtone service and controls a multimedia server to play polyphonic ringtone, and the multimedia server transmits a media stream to a multimedia gateway (MGW) of the polyphonic ringtone service front-end processor; and the MGW of the polyphonic ringtone service front-end processor converts the media stream into a media stream format of core network communication and transmits the media stream format to the core network, and the calling subscriber listens to the polyphonic ringtone. In the method, the mobile switching center server (MSC Server) and the media gateway (MGW) are used as the polyphonic ringtone service front-end processor, and the calling protocol supported by the core network is converted into a communication protocol supported by a polyphonic ringtone center, so that the problem of poor expansibility of the polyphonic ringtone center can be solved.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly relate to a kind of method, Ring Back Tone service front end processor and system that realizes Ring Back Tone service.
Background technology
The Ring Back Tone service development is very fast, in 3G (3rd-generation, 3G (Third Generation) Moblie technology) territory good application is arranged also.There is multiple hello protocol now in the 3G territory, such as ISUP (Integrated ServicesDigital Network User Part, ISDNYong Hubufen), BICC different signalings such as (Bearer Independent CallControl are with the calling control of bearer independent).And various signaling need be supported in the CRBT center.
Existing CRBT center need be used as front end processor with different equipment, support the signaling of certain appointment, such as the special gateway device of supporting the BICC signaling etc., other signalings cause like this when need be supported in the CRBT center, autgmentability is poor, may also to bring the replacing of equipment, cause cost to increase.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method, Ring Back Tone service front end processor and system that realizes Ring Back Tone service, in order to solve in the prior art CRBT center needle to the problem of 3G territory multiple hello protocol autgmentability difference.
For solving the problems of the technologies described above, on the one hand, the invention provides a kind of method that realizes Ring Back Tone service, said method comprising the steps of:
The calling subscriber makes a call, and this call proceeding is to core net, and described core net foundation is connected with Ring Back Tone service front end processor mobile switching center server MSC Server's;
Behind the signaling message that signaling is converted to server of color ring back tone service is communicated by letter of described Ring Back Tone service front end processor MSC Server with described core net transmission, this signaling message is sent to described server of color ring back tone service;
Described server of color ring back tone service triggers Ring Back Tone service, control media server coloring ring back tone playing, and described media server sends Media Stream to Ring Back Tone service front end processor media gateway MGW;
Described Ring Back Tone service front end processor MGW with described media stream transition be with described core net communicating medium stream format after, send to described core net, described calling subscriber listens to CRBT.
Further, make a call the calling subscriber, this call proceeding also comprises after core net:
The caller MSC Server of described core net calls out called MS C Server, and connects with it.
Further, the signaling of described core net transmission has the Ring Back Tone service access code.
Further, described server of color ring back tone service triggers Ring Back Tone service according to the Ring Back Tone service access code.
Further, carry out the SIP Signalling exchange between described server of color ring back tone service and the described Ring Back Tone service front end processor MSC Server.
On the other hand, the present invention also provides a kind of Ring Back Tone service front end processor of realizing Ring Back Tone service, described Ring Back Tone service front end processor carries out Signalling exchange with server of color ring back tone service, media server and core net respectively, and described Ring Back Tone service front end processor comprises mobile switching center server MSC Server and media gateway MGW;
Described Ring Back Tone service front end processor MSC Server is used for the signaling conversion between described core net and the described server of color ring back tone service;
Described Ring Back Tone service front end processor MGW is used for the medium type conversion between described core net and the described media server.
Further, the signaling of described core net transmission has the Ring Back Tone service access code.
Further, described server of color ring back tone service triggers Ring Back Tone service according to the Ring Back Tone service access code.
Further, carry out the SIP Signalling exchange between described server of color ring back tone service and the described Ring Back Tone service front end processor MSC Server.
On the one hand, the present invention also provides a kind of system that realizes Ring Back Tone service, comprises server of color ring back tone service, media server and Ring Back Tone service front end processor again, and described Ring Back Tone service front end processor comprises mobile switching center server MSC Server and media gateway MGW;
Described Ring Back Tone service front end processor MSC Server, the core net that is used for making a call with the calling subscriber that continues connects, behind the signaling message that signaling is converted to server of color ring back tone service is communicated by letter with described core net transmission, this signaling message is sent to described server of color ring back tone service;
Described Ring Back Tone service front end processor MGW, be used for triggering Ring Back Tone service at described server of color ring back tone service, after the control media server coloring ring back tone playing, receive the Media Stream that described media server sends, and with described media stream transition be with described core net communicating medium stream format after, send to described core net, listen to CRBT by described calling subscriber.
Beneficial effect of the present invention is as follows:
The present invention by with mobile switching center server MSC Server and media gateway MGW as the Ring Back Tone service front end processor, the hello protocol of core net support is converted to the communication protocol that the CRBT center is supported, and then solved the problem of CRBT center autgmentability difference, the serviceability and the useful life of equipment have been improved greatly, reduce the cost of related service, improved the competitiveness of equipment vendor and operator.
Description of drawings
Fig. 1 is a kind of flow chart of realizing the method for Ring Back Tone service in the embodiment of the invention;
Fig. 2 is the structural representation that a kind of system that realizes Ring Back Tone service communicates by letter with core net in the embodiment of the invention;
Fig. 3 is that a kind of system of Ring Back Tone service that realizes realizes the schematic flow sheet that Ring Back Tone service is called out in the embodiment of the invention in the 3G territory.
Embodiment
In order to solve in the prior art CRBT center needle to the problem of 3G territory multiple hello protocol autgmentability difference, the invention provides a kind of method, Ring Back Tone service front end processor and system that realizes Ring Back Tone service, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, does not limit the present invention.
The embodiment of the invention proposes 3G equipment of the core network MSC Server (Mobile Switching CenterServer, Mobile Switching Center Server) and MGW (Media Gateway, media gateway) as the front end processor at CRBT center, be responsible for handling and end switch being carried out various Signalling exchange, when core net is called out with variety of protocol, caller can be heard the CRBT that this color ring user is set, improve the autgmentability at CRBT center, support the Signalling exchange of the multiple hello protocol in 3G territory; Realize the CRBT calling under the 3G core net, adapt to development of times, better service is provided.
As shown in Figure 1, the embodiment of the invention relates to a kind of method that realizes Ring Back Tone service, and this method may further comprise the steps:
Step S101, the calling subscriber makes a call, and this call proceeding is to core net, and core net is judged the called Ring Back Tone service of having signed, and when calling was called, core net foundation was connected with Ring Back Tone service front end processor mobile switching center server MSC Server's;
Step S102, Ring Back Tone service front end processor MSC Server is converted to the signaling message of communicating by letter with server of color ring back tone service with the call signaling that core net sends, and this signaling message is sent to server of color ring back tone service; That is: when core net is called out with variety of protocol, Ring Back Tone service front end processor MSC Server can be converted into the agreement that communicates between Ring Back Tone service front end processor MSC Server and the server of color ring back tone service, for example, Ring Back Tone service front end processor MSC Server is converted to SIP (Session Initiation Protocol with the signaling of core net, the signaling control protocol of application layer) signaling sends to server of color ring back tone service;
Step S103, server of color ring back tone service triggers Ring Back Tone service, carries out the CRBT media negotiating process, control media server coloring ring back tone playing.Therebetween, the Ring Back Tone service front end processor carries out the conversion of various signalings to the SIP signaling.Media server sends Media Stream to Ring Back Tone service front end processor media gateway MGW;
Step S104, Ring Back Tone service front end processor MGW with media stream transition be with core net communicating medium stream format after, send to described core net, caller gets final product the user and listens to CRBT.
Wherein, step S101 further comprises:
Core net caller MSC Server calls out called MS C Server, and obtains responding, and sets up connection;
Caller MSC Server judges called signatory Ring Back Tone service, sends call signaling to Ring Back Tone service front end processor MSC Server, has the Ring Back Tone service access code in the message.
Step S103 further comprises:
Server of color ring back tone service triggers Ring Back Tone service according to the Ring Back Tone service access code;
Carry out the SIP Signalling exchange between server of color ring back tone service and the Ring Back Tone service front end processor MSC Server.
Step S104 further comprises:
The media negotiating process of media server and Ring Back Tone service front end processor MGW finishes, and the media negotiating process of Ring Back Tone service front end processor MGW and core net caller MGW also finishes;
Media server begins coloring ring back tone playing, sends Media Stream to Ring Back Tone service front end processor MGW, sends to caller MGW after the Ring Back Tone service front end processor MGW conversion, and caller gets final product the user and listens to CRBT.
The embodiment of the invention also relates to a kind of Ring Back Tone service front end processor, and the Ring Back Tone service front end processor carries out Signalling exchange with server of color ring back tone service, media server and core net respectively.The embodiment of the invention is responsible for 3G equipment of the core network MSC Server and the MGW front end processor as the CRBT center to handle and end switch is carried out various Signalling exchange.
Ring Back Tone service front end processor MSC Server is used for the signaling conversion between core net and the server of color ring back tone service; Ring Back Tone service front end processor MGW is used for the medium type conversion between core net and the media server.
As shown in Figure 2, the invention still further relates to a kind of system that realizes Ring Back Tone service, comprise server of color ring back tone service 202, media server (NFS, Net File Server) 203 and the Ring Back Tone service front end processor, the Ring Back Tone service front end processor comprises mobile switching center server MSC Server201 and media gateway MGW 204;
Server of color ring back tone service 202: be responsible for being connected with the signaling of Ring Back Tone service front end processor MSC Server201, the service logic of Ring Back Tone service is controlled, the preservation of business datum and inquiry, to the control of media server etc.
Media server 203: be responsible for and server of color ring back tone service 202 control Signalling exchanges, MGW204 holds consultation with the Ring Back Tone service front end processor, according to preassigned pattern audio file is play, and finishes the storage to the CRBT resource file of uploading.
Ring Back Tone service front end processor MSC Server201: be responsible for the signaling conversion between core net caller MSC Server and the server of color ring back tone service 202.Core net caller MSC Server is meant the MSC Server of the affiliated core net of calling subscriber; Accordingly, the MSC Server of core net is called MS CServer under the called subscriber.
Ring Back Tone service front end processor MGW204: be responsible for the format conversion of medium type, that is: be responsible for the medium type conversion between core net caller MGW and the media server 203.Core net caller MGW is meant the MGW of the affiliated core net of calling subscriber; Accordingly, the MGW of core net is called MGW under the called subscriber.
When the calling subscriber makes a call, this call proceeding is to core net, and core net is judged the called Ring Back Tone service of having signed, call out called in, core net is set up and being connected of Ring Back Tone service front end processor MSC Server201; After the call signaling that Ring Back Tone service front end processor MSC Server201 sends core net is converted to the signaling message of communicating by letter with server of color ring back tone service 202, this signaling message is sent to server of color ring back tone service 202; Server of color ring back tone service 202 triggers Ring Back Tone service, carries out the CRBT media negotiating process, control media server 203 coloring ring back tone playing, and media server 203 sends Media Stream to Ring Back Tone service front end processor MGW204; Ring Back Tone service front end processor MGW204 with media stream transition be with core net communicating medium stream format after, send to core net, the calling subscriber can listen to CRBT.
For the ease of distinguishing, below Ring Back Tone service front end processor MSC Server201 is expressed as MSCServer_CRBT201, MGW204 is expressed as with the Ring Back Tone service front end processor: MGW_CRBT204.
UE is a calling terminal, and among Fig. 2, UE_A401 is a calling terminal, and UE_B402 is a terminal called.Calling terminal can be all kinds, such as PSTN (Public Switched Telephone Network, PSTN) user, GSM (Global System for Mobile Communications, global system for mobile communications) user, 3G subscription etc.
3G core net: call out relevant 3G equipment of the core network with CRBT, mainly comprise MSC Server and MGW.
MSC Server: mainly realize the part call service function, communicate by letter with MSC Server_CRBT201; Wherein, being caller 3G core net A under the MSC Server_A101, is called 3G core net B under the MSC Server_B301.
MGW: mainly realize part call service function and bearer control function, with communicating by letter between the MGW_CRBT204.Wherein, being caller 3G core net A under the MGW_A102, is called 3G core net B under the MGW_B302.
As shown in Figure 3, said system realizes that in the 3G territory flow process of Ring Back Tone service calling is as follows:
Step 201: Calling Side MSC Server_A101 sends Bearer Independent Call Control Protocol IAM (Initial AddressMessage, initial address message) message and gives callee side MSC Server_B301, has the encoding and decoding tabulation that user's face is supported in the message.
Step 202:MSC Server_B301 replys Bearer Independent Call Control Protocol APM (Application TransportMessage, application transport mechanism) message is given MSC Server_A101, the code/decode type that has user's face of selecting for use in the message transmits voice with notice Calling Side core net and adopts this encoding and decoding.
Step 203:MSC Server_A101 sends Bearer Independent Call Control Protocol APM message to MSCServer_B301, and message has the media information sdpA1 of MGW_A102.
Step 204: through behind the media negotiation, MSC Server_B301 replys Bearer Independent Call Control Protocol APM message and gives MSC Server_A101, and message has the media information sdpB of MGW_B302.
Media negotiation result before the step 205:MGW_A102 basis, send IuUP agreement (Iu mouth user plane, being Iu mouth user data transmission agreement) Initalization (initialization) message gives MGW_B302, specified information such as Media Stream coded system and speed in the message.
Step 206:MGW_B302 replys IuUP agreement ACK (Acknowledgement Message, approval message) message and gives MGW_A102, coded system and speed that expression is received message and accepted to adopt.
Step 207:MSC Server_A101 sends Bearer Independent Call Control Protocol COT (Continuity Message, conducting message) message and gives MSC Server_B301, and the expression user plane bearer is set up and finished.
Step 208:MSC Server_B301 sends Bearer Independent Call Control Protocol ACM (Address CompleteMessage, Address Complete Message) message and gives MSC Server_A101.
Step 209:MSC Server_A101 inquires the called Ring Back Tone service of having registered, and sends Bearer Independent Call Control Protocol IAM message to MSC Server_CRBT201, has the encoding and decoding tabulation that user's face is supported in the message.
Step 210:MSC Server_CRBT201 replys Bearer Independent Call Control Protocol APM message and gives MSCServer_A101, has the code/decode type of user's face of selecting for use in the message, transmits voice with notice Calling Side core net and adopts this encoding and decoding.
Step 211:MSC Server_A101 sends Bearer Independent Call Control Protocol APM message to MSCServer_CRBT201, and message has the media information sdpA2 of MGW_A102.
Step 212:MSC Server_CRBT201 sends Session Initiation Protocol Invite message (initiate a session request, invite the user to add a session, conversation description is contained in the message body) and gives server of color ring back tone service 202, has the media information sdpD of MGW_CRBT204.
Step 213: trigger business on the server of color ring back tone service 202, inquire called subscriber's multimedia bell information, send Session Initiation Protocol Invite message, have media information sdpD in the message to media server 203.
Step 214: through media negotiation, media server 203 is replied Session Initiation Protocol 200OK message (success response, the expression request is successfully accepted, handled) and is given server of color ring back tone service 202, has the media information sdpCD that consulted in the message.
Step 215: server of color ring back tone service 202 sends Session Initiation Protocol ACK message and (confirms to have received the final response for the Invite request.This message only with the supporting use of Invite message) give media server 203,200OK message has been received in expression.
Step 216: server of color ring back tone service 202 sends Session Initiation Protocol 183 message (Session Progress, session progress) and gives MSC Server_CRBT201, has the media information sdpCD that consulted in the message.
Step 217:MSC Server_CRBT201 sends BICC signaling APM message to MSCServer_A101, has the media information sdpD2A2 that consulted in the message.
Media negotiation result before the step 218:MGW_A102 basis sends IuUP agreement Initailization message to MGW_CRBT204, has specified information such as Media Stream coded system and speed in the message.
Step 219:MGW_CRBT204 replys IuUP agreement ACK agreement and gives MGW_A102, coded system and speed that expression is received message and accepted to adopt.
Step 220:MSC Server_A101 sends the Bearer Independent Call Control Protocol COT to MSCServer_CRBT201, and the expression user plane bearer is set up and finished.
Step 221:MSC Server_CRBT201 sends Bearer Independent Call Control Protocol ACM message to MSCServer_A101, and playback is prepared in expression.
Step 222: server of color ring back tone service 202 sends Session Initiation Protocol Info message and (is used for the session signaling.INFO is used to transmit various information between session participation person; INFO can be used for transmitting the various signals that produce at random in the conversation, also can transmit instant message between the session both sides.) give media server 203, have the broadcast address of CRBT file in the message.
Step 223: media server 203 is replied Session Initiation Protocol 200OK (to the response of Info message) message and is given server of color ring back tone service 202, expression beginning playback.Media server 203 beginnings are to the CRBT of MGW_CRBT204 broadcast RTP (Real-time Transport Protocol, real time transport protocol) form, and MGW_CRBT204 is converted to the IuUP form and sends to MGW_A102.
Step 224: called party answer, MSC Server_B301 sends Bearer Independent Call Control Protocol ANM (AnswerMessage, response message) message and gives MSC Server_A101.
Step 225:MSC Server_A101 sends Bearer Independent Call Control Protocol REL (Release, release message) message and gives MSC Server_CRBT201, requires call release.
Step 226:MSC Server_CRBT201 replys Bearer Independent Call Control Protocol RLC (Release Complete discharges and finishes) message and gives MSC Server_A101.
Step 227:MSC Server_CRBT201 sends Session Initiation Protocol Cancel message (cancel still uncompleted request, for completed request, promptly received the request of final response, then not influence) and gives server of color ring back tone service 202, requires to finish polyphonic ringtone playing.
Step 228: server of color ring back tone service 202 sends Session Initiation Protocol Bye message (end session) and gives media server 203, requires to finish polyphonic ringtone playing.
Step 229: media server 203 stops coloring ring back tone playing, replys Session Initiation Protocol 200OK (to the response of Bye message) message and gives server of color ring back tone service 202.
Step 230: server of color ring back tone service 202 is replied 200OK (to the response of Cancel message) message and is given MSC Server_CRBT201.
Step 231: server of color ring back tone service 202 is replied 487 (to the response of Invite message, request is stopped by Bye or Cancel) message and is given MSC Server_CRBT201.
Step 232:MSC Server_CRBT201 sends ACK message to server of color ring back tone service 202.So far, the polyphonic ringtone playing flow process finishes, and calling and called begin conversation.
Step 233: the calling and called talk-through, called subscriber's on-hook, MSC Server_B301 sends Bearer Independent Call Control Protocol REL message to MSC Server_A101, requires call release.
Step 234:MSC Server_A101 replys Bearer Independent Call Control Protocol RLC message and gives MSCServer_B301, and expression is called out and discharged.
Need to prove: in the foregoing description, the calling and called terminal can be the various users that the 3G core net is supported, this example is an example with the BICC signaling, but is not limited to the BICC signaling.
As can be seen from the above-described embodiment, the present invention by with mobile switching center server MSC Server and media gateway MGW as the Ring Back Tone service front end processor, the hello protocol of core net support is converted to the communication protocol that the CRBT center is supported, and then solved the problem of CRBT center autgmentability difference, the serviceability and the useful life of equipment have been improved greatly, reduce the cost of related service, improved the competitiveness of equipment vendor and operator.
Although be the example purpose, the preferred embodiments of the present invention are disclosed, it also is possible those skilled in the art will recognize various improvement, increase and replacement, therefore, scope of the present invention should be not limited to the foregoing description.
Claims (10)
1. a method that realizes Ring Back Tone service is characterized in that, said method comprising the steps of:
The calling subscriber makes a call, and this call proceeding is to core net, and described core net foundation is connected with Ring Back Tone service front end processor mobile switching center server MSC Server's;
Behind the signaling message that signaling is converted to server of color ring back tone service is communicated by letter of described Ring Back Tone service front end processor MSC Server with described core net transmission, this signaling message is sent to described server of color ring back tone service;
Described server of color ring back tone service triggers Ring Back Tone service, control media server coloring ring back tone playing, and described media server sends Media Stream to Ring Back Tone service front end processor media gateway MGW;
Described Ring Back Tone service front end processor MGW with described media stream transition be with described core net communicating medium stream format after, send to described core net, described calling subscriber listens to CRBT.
2. the method for realization Ring Back Tone service as claimed in claim 1 is characterized in that, makes a call the calling subscriber, and this call proceeding also comprises after core net:
The caller MSC Server of described core net calls out called MS C Server, and connects with it.
3. the method for realization Ring Back Tone service as claimed in claim 1 is characterized in that, the signaling that described core net sends has the Ring Back Tone service access code.
4. the method for realization Ring Back Tone service as claimed in claim 3 is characterized in that, described server of color ring back tone service triggers Ring Back Tone service according to the Ring Back Tone service access code.
5. as the method for each described realization Ring Back Tone service of claim 1～4, it is characterized in that, carry out the SIP Signalling exchange between described server of color ring back tone service and the described Ring Back Tone service front end processor MSC Server.
6. Ring Back Tone service front end processor of realizing Ring Back Tone service, described Ring Back Tone service front end processor carries out Signalling exchange with server of color ring back tone service, media server and core net respectively, it is characterized in that described Ring Back Tone service front end processor comprises mobile switching center server MSC Server and media gateway MGW;
Described Ring Back Tone service front end processor MSC Server is used for the signaling conversion between described core net and the described server of color ring back tone service;
Described Ring Back Tone service front end processor MGW is used for the medium type conversion between described core net and the described media server.
7. the Ring Back Tone service front end processor of realization Ring Back Tone service as claimed in claim 6 is characterized in that, the signaling that described core net sends has the Ring Back Tone service access code.
8. the Ring Back Tone service front end processor of realization Ring Back Tone service as claimed in claim 7 is characterized in that, described server of color ring back tone service triggers Ring Back Tone service according to the Ring Back Tone service access code.
9. as the Ring Back Tone service front end processor of the described realization Ring Back Tone service of claim 6～8, it is characterized in that, carry out the SIP Signalling exchange between described server of color ring back tone service and the described Ring Back Tone service front end processor MSC Server.
10. a system that realizes Ring Back Tone service comprises server of color ring back tone service, media server and Ring Back Tone service front end processor, it is characterized in that, described Ring Back Tone service front end processor comprises mobile switching center server MSC Server and media gateway MGW;
Described Ring Back Tone service front end processor MSC Server, the core net that is used for making a call with the calling subscriber that continues connects, behind the signaling message that signaling is converted to server of color ring back tone service is communicated by letter with described core net transmission, this signaling message is sent to described server of color ring back tone service;
Described Ring Back Tone service front end processor MGW, be used for triggering Ring Back Tone service at described server of color ring back tone service, after the control media server coloring ring back tone playing, receive the Media Stream that described media server sends, and with described media stream transition be with described core net communicating medium stream format after, send to described core net, listen to CRBT by described calling subscriber.
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| CN2010101668500A CN102244842A (en) | 2010-05-10 | 2010-05-10 | Method for realizing polyphonic ringtone service, polyphonic ringtone service front-end processor and system |
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| WO2020073999A1 (en) * | 2018-10-12 | 2020-04-16 | 华为技术有限公司 | Method for controlling video ringing playback and related apparatus |
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Application publication date: 20111116 |