CN1905703A - Method and system for implementing multimedia music ringring in mobile communication network and mobile intelligent network - Google Patents
Method and system for implementing multimedia music ringring in mobile communication network and mobile intelligent network Download PDFInfo
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Abstract
The invention relates to a system and method for realizing multimedia CRBT with a combination of intelligent network and mobile communication network. The system includes the core network element (MSC Server/MGW and HLR) of mobile network WCDMA R4, intelligent network element (SSP and SCP), and a new MRBT platform of multimedia CRBT which consists of signaling access points SAN, application server AS, media server MS, database server DB and web portal server. It defines the multimedia CRBT as an intelligent service of the mobile intelligent network, and SCP controls the logic operations. The described MRBT platform broadcasts multimedia bells to the calling when SCP controls the call-router to MRBT platform. After the called terminal rings off the phone, MRBT platform bridges the MSC Server/MGW of the calling and called terminals for communication.
Description
Technical field
The present invention relates to a kind of implementation method and system of 3G Multimedia Ring Back Tone service, exactly, relate to a kind of implementation method and system, belong to the mobile communication technology field based on WCDMA R4 mobile radio communication and the online Multimedia Ring Back Tone service of intelligent movable.
Background technology
As everyone knows, mobile intelligent net mainly comprises Service Switching Point, Service Control Point, service management point (SMP) etc., mobile communication value-added service can be developed and realize to mobile intelligent net easily and quickly, is widely used in the 2G mobile communication.
3G network is 2G networks development and extension, and it has broken 2G networks development bottleneck, for operator creates more new opportunity.Moving the application of application and video content is the vital pulling point of 3G business development, also is to help operator to promote the key of each user's average income (ARPU).3G network can provide more bright and colourful, hommization more, the more professional and service of high quality-of-service with faster rate, and the user will be correspondingly will obtain more diversification, more excellent application experience.
Multimedia color ring back tone (MRBT, Multimedia Ring Back Tone) business is in the visual telephone service of 3G mobile communications network circuit domain, by a value-added service of called subscriber's customization.Its major function is when 3G calling subscriber dials the 3G called subscriber in the video telephone mode, when being called subscriber's ring, system can for the calling subscriber play a section of customizing in advance by the called subscriber gorgeous, melodious, have media stream individual character, that form by multiple media contents such as audio frequency, video, pictures, substitute common ring-back tone or common 2G CRBT (CRBT, Color Ring Back Tone).
But because Multimedia Ring Back Tone service is not the 3G basic service, but how value-added service realizes the technical problem that multimedia color ring back tone has become a focus of technical staff's concern and has been badly in need of solving under 3G network.
Summary of the invention
In view of this, the objective of the invention is to utilize mobile intelligent net, and based on WCDMA (R4) mobile radio communication of 3G, the implementation method and the system of the Multimedia Ring Back Tone service that a kind of mobile intelligent net combines with mobile radio communication are provided, thereby under 3G network, realize Multimedia Ring Back Tone service, the effect of doulbe-sides' victory is provided for user and operator.
In order to achieve the above object, the invention provides the system of the realization Multimedia Ring Back Tone service that a kind of mobile intelligent net combines with mobile radio communication, described system comprises the core network element of WCDMA R4 mobile network: the mobile SoftSwitch MSC Server of end office (EO), end office's media gateway MGW and attaching position register HLR, and the network element of intelligent network: service switching point and service control point (SCP); It is characterized in that:
This system also comprises the multimedia color ring back tone MRBT platform that a signaling access point SAN by interchange information, application server AS, media server MS, database server DB and door managing web server Portal are formed, the function of this MRBT platform is: under the control of SCP, carry out Signalling exchange with caller and called subscriber's the mobile SoftSwitch MSC Server/ of end office (EO) media gateway MGW; MGW by the calling subscriber is to calling subscriber's play multimedia CRBT; And realize that via the MRBT platform medium between caller and the called MGW connect, and realize the video calling between caller and called users; Multi-media ringtone resource, user profile are stored, administered and maintained, service provider SP is managed.
The function of each physical components is respectively in the described multimedia color ring back tone MRBT platform:
Signaling access point SAN: the reception and the transmission of the CAMEL Application Part agreement CAP signaling between the SCP of realization MRBT platform and called ownership; Realize independently calling out with carrying between MRBT platform and caller, the called MS C Server reception and the transmission of control BICC signaling,, finish speech channel and continue so that handle with giving application server AS after the signaling conversion;
Database server DB:, be used to store user's business datum and multi-media ringtone resource data as the core database of MRBT platform;
Application server AS: all resources of control and management MRBT platform, message is carried out Real-time and Concurrent handle, carry out the Multimedia Ring Back Tone service logic, the communication interface with other functional entity is safeguarded in the action of control media server MS;
Media server MS: accept the control of application server AS, audio frequency, video and other media resource comprised literary composition language conversion, layering and adaptive various processing, by MGW to user's playing media resource;
Door managing web server Portal: the access approach of MRBT platform is provided, system, user and SP are realized management.
Described multimedia color ring back tone platform is supported following agreement at least: the call control protocol that comprises ISDN User Part, CAMEL Application Part, Bearer Independent Call Control Protocol, Session Initiation Protocol: comprise the H.248/Megaco medium control protocol of agreement, Session Initiation Protocol, MGCP agreement: the media processing protocol that comprises RTP/RTCP agreement, RTSP agreement; Comprise G.711, G.723.1, G.729AB the speech coding form and H.261, H.263, the various media format protocol of MPEG4 video code model.
Called HLR network element in the described system will increase following function: the terminal unit contractual information T-CSI that adds the Multimedia Ring Back Tone service user, support SCP by sending routing iinformation SRI inquiry called subscriber's Mobile Station Roaming Number MSRN, support SCP by inquiring about the called User Status of ATI action queries at any time.
Called SCP network element in the described system will increase the control logic of Multimedia Ring Back Tone service, and particular content comprises:
Terminal use's CAMEL-Subscription-Information T-CSI of the called subscriber who reports according to caller MSC Server judges whether signatory Multimedia Ring Back Tone service of this called subscriber; Can be by sending the roaming number MSRN that HLR that routing iinformation SRI operates called ownership obtains the called subscriber, and after adding route prefix before the MSRN, as the destination routing address destinationRoutingAddress parameter that connects in the connect instruction message, indication caller MSC Server/MGW/SSP routes the call to called MRBT platform; Called true number is filled out former called party identification originalcalledpartyID; Can judge whether the called subscriber is in idle condition,, then carry out the flow process of play multimedia CRBT, transfer Servers/MGW to caller MSC otherwise will continue the Continue signaling if be in idle condition; In the connection connect instruction that this issues, the originating subscriber CAMEL-Subscription-Information is used oCSIApplicable and should be changed to unavailable; Possess switching function,, whether activating multi-media Ring Back Tone service logic can be set, do not influence the foundation of normal talking so that when the system failure.
Caller in the described system, called MSC Server/MGW/SSP will increase following function:
Caller MSC Servers/MGW/SSP can trigger the operation flow of multimedia color ring back tone according to called user terminal CAMEL-Subscription-Information T-CSI to called SCP; After triggering the Multimedia Ring Back Tone service flow process, called subscriber's roaming number of forming by route prefix+called roaming number in the connection connect signaling that caller MSC Server/MGW/SSP can issue according to SCP, extract route prefix, and be called to corresponding called MRBT platform; If oCSIApplicable is changed to unavailablely in the connection connect signaling that caller MSC Server/MGW/SSP receives, change the MF flow process before then MSC Server/MGW/SSP will not initiate.
In order to achieve the above object, the present invention also provides the method for the realization Multimedia Ring Back Tone service that a kind of mobile intelligent net combines with mobile radio communication, it is characterized in that: Multimedia Ring Back Tone service is defined as a kind of IN service based on mobile intelligent net, carries out the operation control of service logic by SCP; After the SCP controlling call is routed to the MRBT platform, by the MRBT platform to caller play multimedia CRBT; Behind the called off-hook, caller of MRBT platform bridges and called MSC Server/MGW realize the conversation between the calling and called.
Described method comprises the following steps:
(1) after the calling subscriber called out and to have customized Multimedia Ring Back Tone service called, caller MSC Server/MGW/SSP obtained called T_CSI from called HLR;
(2) caller MSC Server/MGW/SSP triggers multimedia color ring back tone IN service flow process according to called subscriber's terminal unit contractual information T_CSI to the SCP of called ownership;
(3) SCP of called ownership inquire called be in idle condition after, will comprise that by connecting the Connect operation route prefix+called subscriber's MSRN is handed down to caller MSC Server/MGW/SSP as callee's roaming number;
(4) caller MSC/SSP according to route prefix with call proceeding to the MRBT platform of called ownership;
(5) the MRBT platform of called ownership is calling subscriber's play multimedia CRBT according to the logical relation of numbers of calling and called parties, the normal ring-back tone that the called MS of MRBT platform shielding simultaneously C Server sends, and suppress the local ring-back tone that produces of caller; Called subscriber's off-hook, the MRBT platform of called ownership stops the broadcast of multimedia color ring back tone, and bridge joint is set up the video calling of caller between called;
(6) video calling finishes, and called ownership MRBT platform is removed the H.245 logical channel between the calling and called, and relevant bearer discharges, and comprises the calling and called call flow that sends multimedia color ring back tone and finishes.
Described step (5) further comprises following operation:
(51) use " optional back is to calling out expression language parameter " to identify special multimedia color ring back tone at the multimedia color ring back tone platform in Address Complete Message ACM that the originating switch SoftSwitch sends and response message ANM and call out, promptly select for use in " optional back is to calling out expression language parameter " to be the domestic extension bits that keeps of using: the E position is as the sign position of this callings of expression as the multimedia color ring back tone calling;
(52) after the originating switch switch receives ACM, its handling process is adjusted into: whether after the originating switch switch is received the ACM signaling, judging in the signaling earlier has " optional back is to calling out expression language parameter ",, then handle by the normal call flow process if do not have; If have, judge then whether the E position of this parameter is the numerical value that the expression multimedia color ring back tone is called out; If then handle according to following order: putting call identification is that MRBT calls out, sends the Alerting signaling, sends the Connect signaling to calling terminal to calling terminal; If not, then handle by the normal call flow process;
(53) after the originating switch SoftSwitch receives response message ANM, its handling process is adjusted into: after the originating switch SoftSwitch is received the ANM signaling, judge whether current call identification is that MRBT calls out; If not, then handle by the normal call flow process; If then handle: suppress to send the Connect signaling, be the caller charging to calling terminal according to following order.
In the described step (51), the concrete extended method of the extension bits that keeps in " optional back is to calling expression language parameter " is: if the E position is 1, represent that this calling is the multimedia color ring back tone calling; If 0, be expressed as normal calling.
Advantage of the present invention and effect are:
This system changes little to the equipment of 3G network, commence business fast easily, and common speech CRBT and multimedia color ring back tone are separated fully in call treatment, can ensure the stability of existing Ring Back Tone service.
Can make 3G subscription when enjoying common Ring Back Tone service, increase the new experience of Multimedia Ring Back Tone service again.Increasing along with the 3G mobile subscriber, under the Multimedia Ring Back Tone service customer group increase situation gradually, the platform in the system of the present invention can independently be built, the smooth evolution transition; Promptly only multimedia color ring back tone is increased the expansion of system handles capacity, directly utilize the data storage part and the management equipments such as user/business of common color ring platform; Under the situation that common color ring user reduces, can carry out equipment transformations that reuse, multimedia color ring back tone platform MRBT is arrived in the direct software upgrading of common Ring Back Tone service platform CRBT, save the equipment investment expense greatly.
In addition, Multimedia Ring Back Tone service of the present invention system has complete signaling interface, supports multiple networking mode, adopt central controlled distribution process mode, can dispose flexibly and adjust according to professional consumption between each system, ecad be strong, has good application prospects.
Description of drawings
Fig. 1 is that the system network architecture of the realization Multimedia Ring Back Tone service that combines with mobile radio communication of mobile intelligent net of the present invention is formed schematic diagram.
Fig. 2 is that the multimedia color ring back tone platform structure in the system of the present invention is formed schematic diagram.
Fig. 3 is to use the call signalling flow schematic diagram of the Multimedia Ring Back Tone service of the inventive method.
Fig. 4 is that language parameter field schematic diagram is represented to calling out in the optional back of using in the inventive method.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2, introduce the system of a kind of realization Multimedia Ring Back Tone service that is combined with mobile radio communication by mobile intelligent net of the present invention, this system comprises the core network element (MSCServer, MGW and HLR) of WCDMA R4 mobile network, the network element (SSP and SCP) and the multimedia color ring back tone platform MRBT of intelligent network.The multimedia color ring back tone platform that should be made up of signaling access point SAN, application server AS, media server MS, database server DB and the door managing web server Portal of interchange information is the newly-increased network element in the system, its function mainly is: under the control of SCP, carry out Signalling exchange with caller and called subscriber's MSCServer/MGW; MGW by the calling subscriber is to calling subscriber's play multimedia CRBT; And realize that via the MRT platform medium between caller and the called MGW connect, and realize the video calling between caller and called users; Multi-media ringtone resource, user profile are stored, administered and maintained, service provider SP is managed.
In this multimedia color ring back tone platform, the function of SAN is: the reception and the transmission of the CAMEL Application Part agreement CAP signaling between the SCP of realization MRBT platform and called ownership; Realize between MRBT platform and caller, the called MS C Server, independently call out reception and the transmission of controlling the BICC signaling,, finish speech channel and continue so that handle with giving application server AS after the signaling conversion with carrying.The function of database server DB is: as the core database of MRBT platform, be used to store user's business datum and multi-media ringtone resource data.The function of application server AS is: all resources of control and management MRBT platform, and message is carried out Real-time and Concurrent handle, carry out the Multimedia Ring Back Tone service logic, the communication interface with other functional entity is safeguarded in the action of control media server MS.The function of media server MS is: accept the control of application server AS, audio frequency, video and other media resource carried out relevant treatment (comprise the conversion of literary composition language, layering and adaptive etc.), by MGW to user's playing media resource.The function of door managing web server Portal is: the access approach of MRBT platform is provided, system, user and SP are realized management.
Multimedia color ring back tone platform of the present invention is supported following communication protocol at least:
Call control protocol: ISDN User Part, CAMEL Application Part, Bearer Independent Call Control Protocol, Session Initiation Protocol etc.;
Medium control protocol: H.248/Megaco agreement, Session Initiation Protocol, MGCP agreement etc.;
Media processing protocol: RTP/RTCP agreement, RTSP agreement etc.;
Media format protocol: G.711, G.723.1, G.729AB wait the speech coding form; Support H.261, H.263, video code model such as MPEG4.
In addition, to undergo technological transformation to the original network element in the said system:
Wherein called HLR will increase following function: the terminal unit contractual information (T-CSI) of adding the Multimedia Ring Back Tone service user in HLR, support SCP by sending routing iinformation SRI inquiry called subscriber's mobile roaming number MSRN, support SCP by inquiring about the called User Status of ATI action queries at any time.
The SCP network element will increase the control logic of Multimedia Ring Back Tone service, and particular content comprises:
1, terminal use's CAMEL-Subscription-Information (T-CSI) of the user who reports according to MSC Server is judged whether signatory Multimedia Ring Back Tone service of this user; 2, can obtain called subscriber's roaming number MSRN by sending the HLR that routing iinformation SRI operates called ownership, and after adding route prefix before the MSRN, as the destination routing address destinationRoutingAddress parameter in the connect instruction message, indication caller MSC Server/MGW/SSP routes the call to the MRBT platform; Called true number is filled out originalcalledpartyID (former called party identification); 3, can judge whether the called subscriber is in idle condition,, then carry out the flow process of play multimedia CRBT, otherwise the Continue signaling is transferred the Servers/MGW to caller MSC if be in idle condition; 4, in this connect that issues instruction, the originating subscriber CAMEL-Subscription-Information is used oCSIApplicable and should be changed to unavailable; 5, when the system failure, in order not influence the foundation of normal talking, SCP should possess switching function, and whether activating multi-media Ring Back Tone service logic can be set.
Caller, called MSC Server/MGW/SSP will increase following function:
1, caller MSC Servers/MGW/SSP can trigger the operation flow of multimedia color ring back tone according to called user terminal CAMEL-Subscription-Information T-CSI to called SCP; 2, after triggering the Multimedia Ring Back Tone service flow process, called subscriber's roaming number of forming by route prefix+called roaming number in the connect signaling that caller MSC Server/MGW/SSP can issue according to SCP, extract route prefix, and be called to corresponding M RBT platform; If oCSIApplicable is changed to unavailablely in the connect signaling that 3 caller MSC Server/MGW/SSP receive, change the MF flow process before then MSC Server/MGW/SSP will not initiate.
MSC Server is mobile SoftSwitch, by the access control of Iu-CS interface realization to 3G RNS, by Mc interface control MGW, and provides calling control and mobile management function; Termination user-network signal, handle mobile subscriber's business datum and the related data of the customization application CAMEL (Customized Applications for Mobile network Enhanced Logic) that mobile network strengthens logic, have the service switching point nodal function of intelligent network simultaneously.One or several local networks that wireless access network covered that MSC Server inserts are called the reciprocal exchange of business area under one's jurisdiction of this MSC Server.
MGW is end office's media gateway, realizes media conversion under the control of the MSC Server that this MGW belongs to, and carrying control and media processing capacity are provided.Its inside is provided with SGW SG, when being used to support the MSCServer intercommunication of other time division multiplexing tdm (Time Division Multiplex) network element and this MGW ownership, based on the SS7 signal switching of signaling transmission SIGTRAN mode.User's face by inserting Iu-CS interface is linked into 3G core net circuit domain (WCDMAR4 soft exchanging network) with user's face Media Stream of 3G RAN, and user's face that also can be by inserting the A interface is linked into WCDMA R4 soft exchanging network with user's face Media Stream of 2G BSS.The local network that the wireless access network that MGW inserts covers is called the professional area under one's jurisdiction of this MGW.
The present invention is again a kind of implementation method of Multimedia Ring Back Tone service, and it is that Multimedia Ring Back Tone service is defined as a kind of IN service based on mobile intelligent net, is carried out the operation control of service logic by SCP; After the SCP controlling call is routed to the MRBT platform, by the MRBT platform to caller play multimedia CRBT; Behind the called off-hook, caller of MRBT platform bridges and called MSC Server/MGW realize the conversation between the calling and called.
Referring to Fig. 1 and Fig. 3, specifically introduce the operating process of the implementation method of Multimedia Ring Back Tone service of the present invention.
(1) after the calling subscriber called out and to have customized Multimedia Ring Back Tone service called, caller MSC Server/MGW/SSP obtained called T_CSI (comprising step 1～4 Fig. 3) from called HLR;
(2) caller MSC Server/MGW/SSP triggers multimedia color ring back tone IN service flow process (comprising step 5～11 among Fig. 3) according to called subscriber's terminal unit contractual information T_CSI to the SCP of called ownership;
(3) SCP of called ownership inquire called be in idle condition after, will comprise that by Connect operation route prefix+called subscriber's MSRN is handed down to caller MSCServer/MGW/SSP as callee's roaming number and (comprises the step 12) among Fig. 3;
(4) caller MSC/SSP according to route prefix with call proceeding to the MRBT platform (comprising step 13～18 among Fig. 3) of called ownership;
(5) the MRBT platform of called ownership is calling subscriber's play multimedia CRBT according to the logical relation of numbers of calling and called parties, the normal ring-back tone that the called MS of MRBT platform shielding simultaneously C Server sends, and suppress the local ring-back tone that produces of caller; Called subscriber's off-hook, the MRBT platform of called ownership stops the broadcast of multimedia color ring back tone, and bridge joint is set up the video calling (comprise step 29～37 in Fig. 3) of caller between called;
(6) video calling finishes, and called ownership MRBT platform is removed the H.245 logical channel between the calling and called, and relevant bearer discharges, and comprises the calling and called call flow that sends multimedia color ring back tone and finishes (comprising step 38～40 among Fig. 3).
Referring to Fig. 3, specify the detailed signaling process of calling out between two 3G subscriptions of applying for Multimedia Ring Back Tone service:
(1) step 1～step 2: video call is initiated in caller, and caller MSC Server/MGW/SSP handles calling;
(2) step 3～step 4: caller MSC Server/MGW/SSP obtains called T-CSI information to the called user signing contract information of the HLR of called ownership inquiry;
(3) step 5: according to the sign of the Multimedia Ring Back Tone service in the called T-CSI information, caller MSCServer/MGW/SSP judges that this calling is the multimedia color ring back tone calling, and then the SCP to called ownership triggers the multimedia color ring back tone called flow;
(4) step 6～step 7: the SCP of called ownership sends SRI to called HLR, fetches called subscriber's Mobile Station Roaming Number MSRN;
(5) step 8～step 9: the SCP of called ownership fetches called subscriber's state by the ATI operation;
(6) step 10～step 11: if User Status is idle, the SCP of called ownership is by the state of the MRBT platform of the called ownership of Execute action queries;
(7) step 12: if MRBT platform current state is available, the SCP of called ownership issues RRBE, AC and CONNECT order to caller MSC Server/MGW/SSP, and will add route prefix as called number before called user's roaming number in CONNECT;
(8) step 13: caller MSC Server/MGW/SSP routes the call to the MRBT platform of called ownership according to called prefix;
(9) step 14: the MRBT platform of called ownership judges that this calling is the Multimedia Ring Back Tone service calling, then remove the route prefix of roaming number, remove parameters such as former called, preceding commentaries on classics number of times, be routed to the MSC Server/MGW at called place according to normal IAM message;
(10) step 15～step 16: called MS C Server/MGW paging is called, calledly confirms;
(11) step 17～step 18: after called MS C Server/MGW finds the called subscriber, return APM for the MRBT platform of called ownership, when the MRBT of called ownership platform was received this signal, loopback APM gave caller MSC Server/MGW;
(12) step 19～step 20: the MRBT platform of called ownership and called MGW carry out the initialization procedure of Nb interface;
(13) step 21～step 22: the MRBT platform of called ownership and the MGW of caller carry out the initialization procedure of Nb interface;
(14) step 23～step 26: called loopback ring signaling, called MS C Server/MGW is to the MRBT of called ownership platform loopback ACM signaling, after the MRBT platform of called ownership is received this ACM signaling, to the special ACM signaling of caller MSC Server/MGW/SSP loopback, indicate this calling to call out for MRBT, caller MSC Server/MGW/SSP sends the ring signaling to caller;
(15) step 27～step 28: caller MSC Server/MGW/SSP is connected with caller;
(16) step 29～step 30: H.245 called ownership MRBT platform and calling UE shake hands, and play the multimedia color ring back tone of called custom-made according to called Mobile Subscriber International ISDN Number to the calling subscriber, suppress the local bell sound that produces of calling UE;
(17) step 31～step 33: the called video calling mode off-hook of pressing, called MS C Server/MGW sends ANM to called ownership MRBT platform;
(18) step 34～step 37: the MRBT platform of called ownership stops the broadcast of multimedia color ring back tone, H.245 negotiations process between foundation and the called UE, open logical channel, enter talking state: the MRBT platform of called ownership connects speech channel Media Stream between the calling and called, begins video calling between the calling and called;
(19) step 38～step 40: end of conversation, the MRBT platform of called ownership is removed the H.245 logical channel between the calling and called, and relevant bearer discharges, and flow process finishes.
Charging problem and the solution thereof introducing business of the present invention below and produced: as can be seen from above-mentioned flow process, at Calling Side, come the play multimedia CRBT owing to taken the talking path of caller, after the Calling Side exchange opportunity adds up the duration of play multimedia CRBT and the calling and called duration of call, obtain the duration of call of caller.From user's impression, the duration of call should be the duration of call of calling and called, and the duration of play multimedia CRBT should not calculate within total duration.At the situation of this Calling Side charging deviation, the invention provides the technical scheme of following solution charging problem:
(1) use " optional back is to calling out expression language parameter " to identify special multimedia color ring back tone in Address Complete Message ACM (step 25) that the originating switch SoftSwitch sends and response message ANM (step 36) calls out at the multimedia color ring back tone platform.Because " optional back is to calling out expression language parameter " E position in (this parameter field form as shown in Figure 4) is left domestic use, and does not formally use at home as yet this position at present, is feasible with this as expansion therefore.Concrete extended method is: if the E position is 1, represent the calling of this calling for multimedia color ring back tone; If 0, be expressed as normal calling.
(2) after the originating switch SoftSwitch receives ACM (step 25), its handling process is done following adjustment: after the originating switch SoftSwitch is received the ACM signaling, judge in the signaling whether " optional back is to calling out expression language parameter " is arranged.If do not have, then handle by the normal call flow process; If have, judge again then whether the E position of this parameter is 1.If 0, then handle by the normal call flow process; If 1, then expression is that multimedia color ring back tone is called out, and handles according to following order: putting call identification is that MRBT calls out, sends the Alerting signaling, sends the Connect signaling to calling terminal to calling terminal.
(3) after the originating switch SoftSwitch receives ANM (step 36), its handling process is done following adjustment: after the originating switch SoftSwitch is received the ANM signaling, judge whether current call identification is that MRBT calls out; If not, then handle by the normal call flow process; If then handle: suppress to send the Connect signaling, be the caller charging to calling terminal according to following order.
The present invention has built pilot system, and has carried out test and implemented.MRBT platform in the pilot system is made up of network elements such as signaling access point SAN, application server AS, media server MS, database server DB and portal site server Portal, and each network element device can be disposed flexibly and adjust according to professional consumption.Each network element hardware is made up of high-performance computer/server and some Industrial Control Computers and all kinds of resource integrated circuit board.Each entity device in the system links to each other by network, adopts the tcp/ip communication agreement, and network is to adopt the 100M high-speed local area network, also can adopt the active and standby dual network scheme of using.
Multimedia color ring back tone platform in the system test and Multimedia Ring Back Tone service are by following test: test is passed through in the associating IMS laboratory at HP and Intel, with the IMS operational trials that China Mobile's tissue has been crossed by NORTEL mutual group Netcom, test by each side is strict in the graduate TD-SCDMA of China Putian's information technology laboratory.The result of these tests is successful, has realized goal of the invention.
Claims (10)
1, the system of the realization Multimedia Ring Back Tone service that combines with mobile radio communication of a kind of mobile intelligent net, described system comprises the core network element of WCDMA R4 mobile network: the mobile SoftSwitch MSC Server of end office (EO), end office's media gateway MGW and attaching position register HLR, and the network element of intelligent network: service switching point and service control point (SCP); It is characterized in that:
This system also comprises the multimedia color ring back tone MRBT platform that a signaling access point SAN by interchange information, application server AS, media server MS, database server DB and door managing web server Portal are formed, the function of this MRBT platform is: under the control of SCP, carry out Signalling exchange with caller and called subscriber's the mobile SoftSwitch MSC Server/ of end office (EO) media gateway MGW; MGW by the calling subscriber is to calling subscriber's play multimedia CRBT; And realize that via the MRBT platform medium between caller and the called MGW connect, and realize the video calling between caller and called users; Multi-media ringtone resource, user profile are stored, administered and maintained, service provider SP is managed.
2, the system of realization Multimedia Ring Back Tone service according to claim 1 is characterized in that: the function of each physical components is respectively in the described multimedia color ring back tone MRBT platform:
Signaling access point SAN: the reception and the transmission of the CAMEL Application Part agreement CAP signaling between the SCP of realization MRBT platform and called ownership; Realize independently calling out with carrying between MRBT platform and caller, the called MS C Server reception and the transmission of control BICC signaling,, finish speech channel and continue so that handle with giving application server AS after the signaling conversion;
Database server DB:, be used to store user's business datum and multi-media ringtone resource data as the core database of MRBT platform;
Application server AS: all resources of control and management MRBT platform, message is carried out Real-time and Concurrent handle, carry out the Multimedia Ring Back Tone service logic, the communication interface with other functional entity is safeguarded in the action of control media server MS;
Media server MS: accept the control of application server AS, audio frequency, video and other media resource comprised literary composition language conversion, layering and adaptive various processing, by MGW to user's playing media resource;
Door managing web server Portal: the access approach of MRBT platform is provided, system, user and SP are realized management.
3, the system of realization Multimedia Ring Back Tone service according to claim 1 is characterized in that: described multimedia color ring back tone platform is supported following agreement at least: the call control protocol that comprises ISDN User Part, CAMEL Application Part, Bearer Independent Call Control Protocol, Session Initiation Protocol: comprise the H.248/Megaco medium control protocol of agreement, Session Initiation Protocol, MGCP agreement: the media processing protocol that comprises RTP/RTCP agreement, RTSP agreement; Comprise G.711, G.723.1, G.729AB the speech coding form and H.261, H.263, the various media format protocol of MPEG4 video code model.
4, the system of realization Multimedia Ring Back Tone service according to claim 1, it is characterized in that: the called HLR network element in the described system will increase following function: the terminal unit contractual information T-CSI that adds the Multimedia Ring Back Tone service user, support SCP by sending routing iinformation SRI inquiry called subscriber's Mobile Station Roaming Number MSRN, support SCP by inquiring about the called User Status of ATI action queries at any time.
5, the system of realization Multimedia Ring Back Tone service according to claim 1 is characterized in that: the called SCP network element in the described system will increase the control logic of Multimedia Ring Back Tone service, and particular content comprises:
Terminal use's CAMEL-Subscription-Information T-CSI of the called subscriber who reports according to caller MSC Server judges whether signatory Multimedia Ring Back Tone service of this called subscriber; Can be by sending the roaming number MSRN that HLR that routing iinformation SRI operates called ownership obtains the called subscriber, and after adding route prefix before the MSRN, as the destination routing address destinationRoutingAddress parameter that connects in the connect instruction message, indication caller MSC Server/MGW/SSP routes the call to called MRBT platform; Called true number is filled out former called party identification originalcalledpartyID; Can judge whether the called subscriber is in idle condition,, then carry out the flow process of play multimedia CRBT, transfer Servers/MGW to caller MSC otherwise will continue the Continue signaling if be in idle condition; In the connection connect instruction that this issues, the originating subscriber CAMEL-Subscription-Information is used oCSIApplicable and should be changed to unavailable; Possess switching function,, whether activating multi-media Ring Back Tone service logic can be set, do not influence the foundation of normal talking so that when the system failure.
6, the system of realization Multimedia Ring Back Tone service according to claim 1 is characterized in that: the caller in the described system, called MSC Server/MGW/SSP will increase following function:
Caller MSC Servers/MGW/SSP can trigger the operation flow of multimedia color ring back tone according to called user terminal CAMEL-Subscription-Information T-CSI to called SCP; After triggering the Multimedia Ring Back Tone service flow process, called subscriber's roaming number of forming by route prefix+called roaming number in the connection connect signaling that caller MSC Server/MGW/SSP can issue according to SCP, extract route prefix, and be called to corresponding called MRBT platform; If oCSIApplicable is changed to unavailablely in the connection connect signaling that caller MSC Server/MGW/SSP receives, change the MF flow process before then MSC Server/MGW/SSP will not initiate.
7, the method for the realization Multimedia Ring Back Tone service that combines with mobile radio communication of a kind of mobile intelligent net is characterized in that: Multimedia Ring Back Tone service is defined as a kind of IN service based on mobile intelligent net, is carried out the operation control of service logic by SCP; After the SCP controlling call is routed to the MRBT platform, by the MRBT platform to caller play multimedia CRBT; Behind the called off-hook, caller of MRBT platform bridges and called MSCServer/MGW realize the conversation between the calling and called.
8, the method for realization Multimedia Ring Back Tone service according to claim 7 is characterized in that, comprises the following steps:
(1) after the calling subscriber called out and to have customized Multimedia Ring Back Tone service called, caller MSC Server/MGW/SSP obtained called T_CSI from called HLR;
(2) caller MSC Server/MGW/SSP triggers multimedia color ring back tone IN service flow process according to called subscriber's terminal unit contractual information T_CSI to the SCP of called ownership;
(3) SCP of called ownership inquire called be in idle condition after, will comprise that by connecting the Connect operation route prefix+called subscriber's MSRN is handed down to caller MSC Server/MGW/SSP as callee's roaming number;
(4) caller MSC/SSP according to route prefix with call proceeding to the MRBT platform of called ownership;
(5) the MRBT platform of called ownership is calling subscriber's play multimedia CRBT according to the logical relation of numbers of calling and called parties, the normal ring-back tone that the called MS of MRBT platform shielding simultaneously C Server sends, and suppress the local ring-back tone that produces of caller; Called subscriber's off-hook, the MRBT platform of called ownership stops the broadcast of multimedia color ring back tone, and bridge joint is set up the video calling of caller between called;
(6) video calling finishes, and called ownership MRBT platform is removed the H.245 logical channel between the calling and called, and relevant bearer discharges, and comprises the calling and called call flow that sends multimedia color ring back tone and finishes.
9, the method for realization Multimedia Ring Back Tone service according to claim 8 is characterized in that: described step (5) further comprises following operation:
(51) use " optional back is to calling out expression language parameter " to identify special multimedia color ring back tone at the multimedia color ring back tone platform in Address Complete Message ACM that the originating switch SoftSwitch sends and response message ANM and call out, promptly select for use in " optional back is to calling out expression language parameter " to be the domestic extension bits that keeps of using: the E position is as the sign position of this callings of expression as the multimedia color ring back tone calling;
(52) after the originating switch switch receives ACM, its handling process is adjusted into: whether after the originating switch switch is received the ACM signaling, judging in the signaling earlier has " optional back is to calling out expression language parameter ",, then handle by the normal call flow process if do not have; If have, judge then whether the E position of this parameter is the numerical value that the expression multimedia color ring back tone is called out; If then handle according to following order: putting call identification is that MRBT calls out, sends the Alerting signaling, sends the Connect signaling to calling terminal to calling terminal; If not, then handle by the normal call flow process;
(53) after the originating switch SoftSwitch receives response message ANM, its handling process is adjusted into: after the originating switch SoftSwitch is received the ANM signaling, judge whether current call identification is that MRBT calls out; If not, then handle by the normal call flow process; If then handle: suppress to send the Connect signaling, be the caller charging to calling terminal according to following order.
10, the method for realization Multimedia Ring Back Tone service according to claim 8, it is characterized in that: in the described step (51), the concrete extended method of the extension bits that keeps in " optional back is to calling expression language parameter " is: if the E position is 1, represent that this calling is the multimedia color ring back tone calling; If 0, be expressed as normal calling.
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| WO2009086758A1 (en) * | 2008-01-11 | 2009-07-16 | Zte Corporation | Method for realizing online color ringback tone and multimedia ringback tone service |
| CN101106757B (en) * | 2007-08-09 | 2010-12-08 | 中兴通讯股份有限公司 | Method and system for second trigger of CDMA intelligent network service call |
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| CN101106757B (en) * | 2007-08-09 | 2010-12-08 | 中兴通讯股份有限公司 | Method and system for second trigger of CDMA intelligent network service call |
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| WO2009086758A1 (en) * | 2008-01-11 | 2009-07-16 | Zte Corporation | Method for realizing online color ringback tone and multimedia ringback tone service |
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