CN101588562B - Multimedia coloring ring back tone realizing method based on bearing -independent call control protocol and system thereof - Google Patents

Multimedia coloring ring back tone realizing method based on bearing -independent call control protocol and system thereof Download PDF

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Publication number
CN101588562B
CN101588562B CN200910085900XA CN200910085900A CN101588562B CN 101588562 B CN101588562 B CN 101588562B CN 200910085900X A CN200910085900X A CN 200910085900XA CN 200910085900 A CN200910085900 A CN 200910085900A CN 101588562 B CN101588562 B CN 101588562B
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media
ring back
multimedia
back tone
called
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CN200910085900XA
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CN101588562A (en
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郭斌
韩银俊
罗会平
刘坤
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ZTE Corp
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ZTE Corp
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Abstract

The present invention discloses a multimedia coloring ring back tone realizing method based on call-independent control protocol bearing and a system thereof. The method and the system of the invention are used for settling the technical problems of difficult updating, complicated protocol, etc. of prior method for realizing the multimedia coloring ring back tone to the mobile switching center. According to the invention, the call-independent control protocol bearing is adopted between the mobile switching center and a media server for realizing the establishment of the media channel among thecalling party, the called party and the media server. After the multimedia coloring ring back tone is played, the video calling between the calling party and the called party is realized through the conference function of the media server. As the mobile switching center does not require big upgrading and reconstruction according to the invention, the quick disposition and in-advance generalization of the multimedia coloring ring back tone can be realized.

Description

Multimedia color ring back tone implementation method and system based on call-independent control protocol bearing
Technical field
The present invention relates to network communications technology field, relate in particular to a kind of method and system that realize Multimedia Ring Back Tone service with the call control protocol of bearer independent of in the mobile core network environment, using.
Background technology
Multimedia color ring back tone is a service application newborn in a kind of 3G network; The user of customizing multimedia Ring Back Tone service can set one section video; When being called out with video mode by other users; In ring, can predefined video be played back on calling subscriber's terminal, strengthen the rich and interesting of user experience.
In the existing mobile core network network configuration; (the MSC of mobile switching centre; Mobile SwitchingCenter) will be from radio network controller (RNC; Radio Network Controller) calling goes to the application server (AS, Application Server) of Multimedia Ring Back Tone service, realizes Multimedia Ring Back Tone service.Said MSC comprise again Mobile Switching Center Server (MSC Server) and WMG (MGW, MediaGateway).Under the control of multimedia color ring back tone application server, during play multimedia ring back tones, send video flowing to WMG, and pass through the forwarding of each network element by media server (MS, Media Server), video is play on user terminal the most at last.
In existing technology, generally do two exhaling and realize CRBT by MSC, promptly call out the called subscriber on the one hand, call out the multimedia color ring back tone application server on the other hand, make the calling and called conversation after playing CRBT.Make it support that the two scheme costs of exhaling of multimedia color ring back tone are very big but the MSC on the existing network is carried out upgrading, and be difficult for sometimes on the commercial level promoting.
Summary of the invention
In view of this; It is a kind of based on call-independent control protocol bearing (BICC that main purpose of the present invention is to provide; Bearer Independent Call Control) multimedia color ring back tone implementation method is used to solve the existing method that realizes Multimedia Ring Back Tone service to technical problems such as MSC upgrading difficulty, agreement complicacies.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of multimedia color ring back tone implementation method based on call-independent control protocol bearing comprises:
Set up media channel with media server respectively by multimedia color ring back tone application server coordination calling mobile exchanging center and called mobile switching centre, and to the caller play multimedia ring back tones;
Create multimedia conferencing by multimedia color ring back tone application server indication media server, and caller and called joining in the said multimedia conferencing, thereby realize the conversation between calling and called.
Further; Adopt bearer independent call control Bearer Independent Call Control Protocol mutual between said calling mobile exchanging center and called mobile switching centre and the multimedia color ring back tone application server, adopt Session initiation protocol SIP mutual between said multimedia color ring back tone application server and the media server.
Further; Behind the media channel of setting up between called mobile switching centre and the media server, indicate the multimedia color ring back tone application server to the caller play multimedia ring back tones by called mobile switching centre; Set up the media channel between calling mobile exchanging center and the media server receive the indication of said play multimedia ring back tones at the multimedia color ring back tone application server after, set up at the media channel between calling mobile exchanging center and the media server and begin the caller play multimedia ring back tones by multimedia color ring back tone application server instructions media server after accomplishing.
Further, the step of setting up the media channel between called mobile switching centre and the media server is:
B1: the multimedia color ring back tone application server is called out media server, obtains the media description information of media server;
B2: the multimedia color ring back tone application server is called out called with the media description information of media server, and obtains called media description information;
B3: the multimedia color ring back tone application server is issued media server with called media description information, make called and media server between set up media channel.
Further, the step of setting up the media channel between calling mobile exchanging center and the media server is:
C1: the multimedia color ring back tone application server is called out said media server with the media description information of caller, and obtains the media description information of said media server;
C2: the multimedia color ring back tone application server passes to calling mobile exchanging center with the media description information of said media server, makes between caller and media server and sets up media channel.
Further, multimedia color ring back tone application server indication media server is created multimedia conferencing, and is caller and called adding meeting step:
D1: behind the called off-hook, multimedia color ring back tone application server indication media server is created multimedia conferencing, and with called adding meeting;
D2: multimedia color ring back tone application server indication media server stops the caller play multimedia ring back tones;
D3: multimedia color ring back tone application server indication media server adds the said multimedia conferencing of setting up among the step D1 with caller, and calling and called are conversed through said multimedia conferencing.
Another object of the present invention is to provide a kind of multimedia color ring back tone based on call-independent control protocol bearing to realize system, for achieving the above object, technical scheme of the present invention is achieved in that
A kind of multimedia color ring back tone based on call-independent control protocol bearing is realized system, comprising:
Media channel is set up and the polyphonic ringtone playing module, is used under the coordination of multimedia color ring back tone application server, setting up calling mobile exchanging center and called mobile switching centre respectively and media channel between the media server and play multimedia ring back tones; Stopping notifying the Multimedia session module to carry out its corresponding function after multimedia color ring back tone is play;
The Multimedia session module is used in the middle of being set up Multimedia session under the coordination of multimedia color ring back tone application server by media server and caller and called being joined the Multimedia session of being set up.
Further, said media channel foundation and polyphonic ringtone playing module comprise:
Called media channel is set up module, is used at the media channel of setting up under the coordination of multimedia color ring back tone application server between called mobile switching centre and the media server; Set up the back notice polyphonic ringtone playing module that finishes at passage and carry out its corresponding function;
The polyphonic ringtone playing control module is used for after the media channel between called mobile switching centre and the media server is set up completion, notifying the caller media channel to set up module and carries out; The instruction media server begins the caller play multimedia ring back tones after the media channel between calling mobile exchanging center and the media server is set up completion; And the broadcast and the notice Multimedia session module that behind called off-hook, stop multimedia color ring back tone are carried out its corresponding function;
The caller media channel is set up module, is used at the media channel of setting up under the coordination of multimedia color ring back tone application server between calling mobile exchanging center and the media server.
Further; Adopt bearer independent call control Bearer Independent Call Control Protocol mutual between said calling mobile exchanging center and called mobile switching centre and the multimedia color ring back tone application server, adopt Session initiation protocol SIP mutual between said multimedia color ring back tone application server and the media server.
Realization of the present invention is based on call-independent control protocol bearing; After coloring ring back tone playing, utilize the video calling of the conferencing function realization calling and called of media server; Because the present invention does not need MSC is done big upgrading; Therefore still do not possess in the environment of the two calling functions of multimedia color ring back tone at present MSC, the scheme of utilizing the present invention to propose can realize the quick deployment of Multimedia Ring Back Tone service and popularization in advance.
Description of drawings
Fig. 1 is a network structure of the present invention;
Fig. 2 is signaling process figure of the present invention;
Fig. 3 is the building-block of logic of system of the present invention.
Embodiment
Core concept of the present invention is: based on BIC C agreement; Directly call out called by MSC through the CRBT application server; The CRBT application server not only will be to the caller play multimedia ring back tones, and will call out the called subscriber, finally sets up the video calling between the calling and called.Because what adopt between MSC and multimedia color ring back tone application server is Bearer Independent Call Control Protocol; But this agreement is support media descriptor (SDP not; SessionDescription Protocol) switching; After being calling subscriber and media server switched-media descriptor and coloring ring back tone playing, can't also converse with called subscriber's switched-media descriptor again.So in the scheme that the present invention proposes, proposed that the mode with multimedia conferencing makes calling and called set up the scheme of video calling after coloring ring back tone playing, solved this difficult problem that the limitation of agreement is brought.
For making the object of the invention, technical scheme and advantage clearer, below lift embodiment and with reference to accompanying drawing, to further explain of the present invention.
Fig. 1 is shown in the network structure of the present invention; The network element that the present invention mentions comprises radio network controller (RNC); Mobile switching centre (MSC); Mobile switching centre comprises Mobile Switching Center Server (MSCServer) and WMG (MGW), application server of Multimedia Ring Back Tone service (AS) and media server (MS).Said MSC and AS, and what transmit between AS and the MS is signaling.What transmit between said MS and the MGW is Media Stream.
Shown in the signaling process figure of Fig. 2, the detailed step that the present invention describes is following:
Step 1, caller MSC sends IAM (Initial Address Message) message to AS, carries the media description information (SDP) of caller, thereby triggers Multimedia Ring Back Tone service; Article one message when IAM message is each call setup is the BICC signaling.
Step 2, AS begins to make called and MS to carry out the negotiation of media description information (SDP), so AS initiates not invitation (INVITE) the message call MS with SDP;
Step 3, MS sends the affirmation message (200OK) to the invitation message of step 2 to AS, carries the media description information (SDP) of oneself
Step 4, AS issues called MS C with the media description information (SDP) that IAM message is carried MS in the step 3;
Step 5, called MS C uses APM (Application Transport Mechanism) message to carry called media description information (SDP) and returns to AS;
APM message is application transport mechanism message.Be the signaling of BICC, mainly be used for transmitting the transmission information of using.Medium encoding and decoding speech information for example, media bearer tunnel deliver a letter breath and the outer dtmf signal sound of band etc.
Step 6, AS sends ACK (Acknowlege) message to MS and carries media description information called in the step 5 (SDP), and so far called and MS consults to accomplish, and has set up media channel between called mobile switching centre and the media server;
Step 7, AS sends conducting to called MS C, and (Continuity, COT) message represent that completion is set up in the carrying between called mobile switching centre and the media server;
Step 8, called MS C sends ACM (Address Complete Message) message to AS, and AS is to the caller play multimedia ring back tones in indication;
Step 9, AS begins to make caller and MS to carry out media description information (SDP) negotiation, so send INVITE to MS, carries the SDP of the caller of obtaining in the step 1;
Step 10, MS returns to the affirmation message (200OK) of INVITE in the step 9 and gives AS, and in acknowledge message, carries the SDP of MS;
Step 11, AS sends ACK message to MS and representes the affirmation to step 10;
Step 12, AS sends APM message to caller, carries the media description information (SDP) of MS in the step 10, so far representes to set up media channel between calling mobile exchanging center and the media server;
Step 13, AS sends ACM message to caller, and the beginning coloring ring back tone playing is prepared in the notice caller;
Step 14, AS sends INFO to MS, carries the instruction of coloring ring back tone playing in the INFO, and MS begins to the caller coloring ring back tone playing after receiving INFO, and sends acknowledge message (200OK) to AS;
Step 15, called transmission ANM (Answer Message) message is given AS, representes called off-hook;
Step 16, AS sends INFO to MS, carries the instruction that stops coloring ring back tone playing in the INFO, and MS stops to the caller coloring ring back tone playing after receiving INFO, and sends acknowledge message (200OK) to AS;
Step 17, AS sends INFO to MS, and instruct MS creates multimedia conferencing and called adding multimedia conferencing, MS finishes dealing with the back to AS transmission acknowledge message (200OK);
Step 18, AS sends ANM to caller, and expression is replied what call out;
Step 19, AS sends INFO to MS, and instruct MS is also added in the step 17 multimedia conferencing of creating with caller, and receives that the 200OK of MS confirms, caller at this moment and calledly can carry out video calling.
Said IAM, APM, COT, ACM, ANM belong to the BICC signaling.Said INVITE, 200OK, ACK, INFO belong to the SIP signaling.
The execution mode that adopts the present invention to propose can be disposed multimedia color ring back tone and video call service fast under the situation of not transforming MSC.
Fig. 3 is the system logic structure figure that the present invention realizes Multimedia Ring Back Tone service, comprising: media channel is set up and polyphonic ringtone playing module and Multimedia session module;
Media channel is set up and the polyphonic ringtone playing module is used to accomplish calling mobile exchanging center and called mobile switching centre respectively and the media channel between the media server is set up and the Play Control function of multimedia color ring back tone CRBT, behind called off-hook, is carried out by this module notice Multimedia session module; Media channel is set up and the polyphonic ringtone playing module comprises that further polyphonic ringtone playing control module, called media channel are set up module and the caller media channel is set up module.Called media channel is set up module, is used at the media channel of setting up under the coordination of multimedia color ring back tone application server between called mobile switching centre and the media server; Set up the back notice polyphonic ringtone playing module that finishes at passage and carry out its corresponding function; The polyphonic ringtone playing control module is used for after the media channel between called mobile switching centre and the media server is set up completion, notifying the caller media channel to set up module and carries out; The instruction media server begins the caller play multimedia ring back tones after the media channel between calling mobile exchanging center and the media server is set up completion; And the broadcast and the notice Multimedia session module that behind called off-hook, stop multimedia color ring back tone are carried out its corresponding function; The caller media channel is set up module, is used at the media channel of setting up under the coordination of multimedia color ring back tone application server between calling mobile exchanging center and the media server.
The Multimedia session module is used to set up Multimedia session and caller and called is joined in the middle of the Multimedia session of being set up.
In the said system; Adopt bearer independent call control Bearer Independent Call Control Protocol mutual between calling mobile exchanging center and called mobile switching centre and the multimedia color ring back tone application server, adopt Session initiation protocol SIP mutual between multimedia color ring back tone application server and the media server.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.

Claims (7)

1. the multimedia color ring back tone implementation method based on call-independent control protocol bearing is characterized in that, comprising:
Call out media server by the multimedia color ring back tone application server; Obtain the media description information of media server; And call out called with the media description information of media server; Obtain called media description information, then called media description information is issued media server, make between called mobile switching centre and the media server and set up media channel;
Set up media channel by multimedia color ring back tone application server coordination calling mobile exchanging center and media server, and to the caller play multimedia ring back tones;
Behind called off-hook, create multimedia conferencing by multimedia color ring back tone application server indication media server, and caller and called joining in the said multimedia conferencing, thereby realize the conversation between calling and called.
2. method according to claim 1; It is characterized in that; Adopt bearer independent call control Bearer Independent Call Control Protocol mutual between said calling mobile exchanging center and called mobile switching centre and the multimedia color ring back tone application server, adopt Session initiation protocol SIP mutual between said multimedia color ring back tone application server and the media server.
3. method according to claim 1 and 2; It is characterized in that; Behind the media channel of setting up between called mobile switching centre and the media server, indicate the multimedia color ring back tone application server to the caller play multimedia ring back tones by called mobile switching centre; Set up the media channel between calling mobile exchanging center and the media server receive the indication of said play multimedia ring back tones at the multimedia color ring back tone application server after, set up at the media channel between calling mobile exchanging center and the media server and begin the caller play multimedia ring back tones by multimedia color ring back tone application server instructions media server after accomplishing.
4. method according to claim 3 is characterized in that, the step of setting up the media channel between calling mobile exchanging center and the media server is:
C1: the multimedia color ring back tone application server is called out said media server with the media description information of caller, and obtains the media description information of said media server;
C2: the multimedia color ring back tone application server passes to calling mobile exchanging center with the media description information of said media server, makes between caller and media server and sets up media channel.
5. method according to claim 3 is characterized in that, multimedia color ring back tone application server indication media server is created multimedia conferencing, and is caller and called adding meeting step:
D1: behind the called off-hook, multimedia color ring back tone application server indication media server is created multimedia conferencing, and with called adding meeting;
D2: multimedia color ring back tone application server indication media server stops the caller play multimedia ring back tones;
D3: multimedia color ring back tone application server indication media server adds the said multimedia conferencing of setting up among the step D1 with caller, and calling and called are conversed through said multimedia conferencing.
6. the multimedia color ring back tone based on call-independent control protocol bearing is realized system, and it is characterized in that this system comprises: media channel is set up and polyphonic ringtone playing module and Multimedia session module;
Media channel is set up and the polyphonic ringtone playing module, is used under the coordination of multimedia color ring back tone application server, setting up calling mobile exchanging center and called mobile switching centre respectively and media channel between the media server and play multimedia ring back tones; Stopping notifying the Multimedia session module to carry out its corresponding function after multimedia color ring back tone is play;
The Multimedia session module is used in the middle of being set up Multimedia session under the coordination of multimedia color ring back tone application server by media server and caller and called being joined the Multimedia session of being set up;
Said media channel is set up and the polyphonic ringtone playing module further comprises:
Called media channel is set up module; Be used to indicate the multimedia color ring back tone application server to accomplish following steps: to call out media server; Obtain the media description information of media server; Media description information calling with media server is called, obtains called media description information, then called media description information is issued media server; Thereby make between called mobile switching centre and the media server and set up media channel; Set up the back notice polyphonic ringtone playing control module that finishes at passage and carry out its corresponding function;
The polyphonic ringtone playing control module is used for after the media channel between called mobile switching centre and the media server is set up completion, notifying the caller media channel to set up module and carries out; The instruction media server begins the caller play multimedia ring back tones after the media channel between calling mobile exchanging center and the media server is set up completion; And the broadcast and the notice Multimedia session module that behind called off-hook, stop multimedia color ring back tone are carried out its corresponding function;
The caller media channel is set up module, is used at the media channel of setting up under the coordination of multimedia color ring back tone application server between calling mobile exchanging center and the media server.
7. system according to claim 6; It is characterized in that; Adopt bearer independent call control Bearer Independent Call Control Protocol mutual between said calling mobile exchanging center and called mobile switching centre and the multimedia color ring back tone application server, adopt Session initiation protocol SIP mutual between said multimedia color ring back tone application server and the media server.
CN200910085900XA 2009-06-03 2009-06-03 Multimedia coloring ring back tone realizing method based on bearing -independent call control protocol and system thereof Expired - Fee Related CN101588562B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101730321B (en) * 2009-12-31 2012-12-12 华为技术有限公司 SIP-based polyphonic ringtone playing method, device and system
CN101860630B (en) * 2010-06-22 2014-07-02 中兴通讯股份有限公司 Transmission method and system of out-of-band dual tone multiple frequency (DTMF) signal
CN101997991A (en) * 2010-10-21 2011-03-30 中兴通讯股份有限公司 Bearer independent call control (BICC) signaling front-end processor and implementation system and method for BICC ring back tone interactive voice response (IVR) service
CN103379233B (en) * 2012-04-24 2016-09-07 中兴通讯股份有限公司 A kind of realization method and system of DTMF out-band signal

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