Background technology
Personalized ring back tone service is also referred to as CRBT business (Coloring Ring Back Tone, i.e. CRBT), the client can according to oneself hobby and require the telephone ringback tone of customized personal.Ring-back tone both can be music, advertisement, also can be the voice that the client records.
Ring Back Tone service is suitable for all mobile communication terminal users, comprises mobile phone and Personal Handyphone System user.
CRBT is as the ring back tone of mobile phone, and it is the personalized embodiment of pursuing.So CRBT is applicable to the mobile communication terminal user of being ready to pursue novelty, fashion and individual character.According to the evolution plan of business, the potential user group in each stage is slightly different, enlarges gradually.
At present, the user group of CRBT mainly is individual colony, but along with the popularization of business, also can utilize this platform propaganda oneself in following enterprise, establishes corporate image.
For now, the implementation of color ring systems approximately is divided into three kinds: Service-node scheme, IN scheme, and switch scheme.From practical application, three kinds of modes cut both ways.
Service-node is a server mode, and its access way is simple, and network will trigger to call out in the mode of unconditional call forwarding and route to color ring platform.But the former conditional jump business that has been provided with of user will lose efficacy, and comprised functions such as incoming call secretary and voice mail.This scheme lacks good adaptibility to response to platform fault.In case system is out of order, the called service of all color ring users all can't carry out, and causes call loss.
The IN mode should be the IN+Service-node mode or rather.Different manufacturers is different on the details that realizes, but general manner is the same.This kind scheme has certain control ability to calling, can know called state before call attempt, and then select different call policy, and call attempt is called.The user can not influence other business that the user has opened when opening media ring function, as calling transfer etc., support the roaming function of color ring user simultaneously.But same, whole calling all needs to do bridge joint by color ring systems, has alternative channel, and is bigger for the demand of system's e1 resource.
The switch mode is the most rational CRBT implementation in theory, and its required e1 resource is less: color ring platform need not to call out called again, and is finished voluntarily by switch; Switch just will discharge to the color ring platform circuit when called party answer begins to converse.And from whole calling, color ring platform is simple tone playing equipment, and safety requirements is not high, and its reliability can not influence normal call.But this scheme needs switch manufacturer to cooperate revises switch, and its workload is very big.
Therefore, the switch mode should be desirable and the most feasible target protocol.
CRBT can be realized on the second generation (2G) and the third generation (3G) mobile communication system as a kind of business.
As shown in Figure 1, be the typical CRBT implementation of prior art based on the switch mode.
Calling terminal 101 and terminal called 111 can be 2G mobile radio station MS or 3G subscription terminal UE.Correspondingly, mobile Access Network 102 can be 2G base station sub-system BSS or 3G wireless access network UTRAN; Respectively by 2G base station BTS or NodeB NodeB, and 2G base station controller BSC or 3G radio network controller (RNC) constitute.Wherein, NodeB or BTS 103 and RNC or BSC 104 are calling terminal 101 services; NodeB or BTS 113 and RNC or BSC 114 are terminal called 111 services.
Moving exchanging center MSC 105 and 115 is respectively calling terminal and called end end office (EO).HLR 106 homing position memories.
RIP 121 is that the signaling of CRBT system continues, Audio Processing Unit.It docks with MSC 105 or 115, be responsible for answering, reply from the calling of MSC and set up voice channel, with calling with the road information spinner, called, formerly called etc. mail to CRBT server 123, and play ring-back tone by 123 appointments of CRBT server.
CRBT server 123 is decision-making and Service Control Units of system, be responsible for audible ringing tone service registration, customization, and be the ring-back tones of RIP 121 definite broadcasts with road information, strategy according to calling.CRBT server 123 comprises User Information Database and ring-back tone database.
CRBT gateway 124 is main bodys of CRBT business.The user can carry out service log-on/cancellation by means such as IVR, internet, WAP or notes, operations such as ring-back tone customization, modification, increase, and all these operations are all concluded the business by CRBT gateway 124 intermediate layers and are mutual by itself and CRBT server 123.
Provision gateway 122 passes to the front end processor of the accounting system of operator with client's service log-on/cancellation application information, and the charging that produces of color ring platform simultaneously is detailed singly also passes to tent by it, and the tent charging of making up accounts is arranged.
User terminal 101 or 111 call flow are controlled by its inner CC (Call Control calls out control) agreement, and by 3GPP TS24.008 technical specification defined.
User terminal can be initiated the conversation of multimedia mode.At this moment, setting up among the message SETUP REQ that calling terminal 101 sends, have two carrying cell bearer capability IE, wherein first is the multimedia beared information, and second is the speech beared information.If calling terminal 101 is just initiated voice call, then only comprise a speech carrying cell bearer capability IE.
During service negotiation, using three message, is respectively MODIFY (modification), MODIFY COMPLETE (modification is finished) and MODIFY REJECT (modification is declined) message.These three message are twocoueses, and promptly service negotiation can be initiated by user terminal, also can be initiated by network.
Issue in the message of terminal 101,111 at UTRAN/BSC 104,114, can be by containing Progress indicator cell, perhaps send the method for Progress message specially, indicating terminal is further operated, especially the operation of In-band type in some bands, for example, corresponding multimedia bell information etc.The structure of Progress indicator cell sees Table 1.
Table 1:Progress indicator cell structure
See Table 1, if cell progress description set 1,2,3} or 6,7,8 ..., value among the 20}, then the tinkle of bells in indicating user terminal 101, the 111 corresponding bands.
About the type of the tinkle of bells, then indicate by the Signal cell in the SETUP message.The structure of Signal cell sees Table 2.
Table 2:Signal cell structure
In the table 2, the value of cell Signal value sees Table 3.
The value of table 3:Signal value
As shown in Figure 2, be typical CRBT call flow in the prior art:
Step 1 calling terminal 101 terminal called 111 that makes a call, this step further comprises:
1.1 calling terminal 101 sends to UTRAN/BSC 104 and sets up request message SETUP REQ 201;
1.2UTRAN/BSC 104 send to originating switch MSC 105 and to set up Indication message EST IND 202;
1.3 calling for multimedia mode, between originating switch MSC 105, UTRAN/BSC 104 and the calling terminal 101, support situation according to link circuit resource and system, carry out service negotiation 203, determine 101 common carrying cell bearer capability IE that support of network and calling terminal;
Step 2 originating switch MSC 105 is to 106 SRI of HLR, request call indication information 204;
Step 3 HLR 106 response request SRI RES 205, and return related calling information;
Step 4 is according to called party information, and originating switch MSC 105 initiates a call to called end office 115, sets up with request and calls out 206, and this step further comprises:
4.1 called end office MSC 115 sends to the UTRAN/BSC 114 at terminal called 111 places and sets up request message EST REQ 207;
4.2 UTRAN/BSC 114 sends to terminal called 111 and sets up Indication message SETUP IND 208;
4.3 calling for multimedia mode, between called end office MSC 115, UTRAN/BSC 114 and the terminal called 111, support situation according to link circuit resource and system, carry out service negotiation 209, determine 111 common carrying cell bearer capability IE that support of network and terminal called;
Step 5 terminal called 111 returns to calling terminal 101 ring ALERTING message 210, and this step further comprises:
5.1 the message that originating switch MSC 105 returns according to called end office MSC 115 is carried out service negotiation with calling terminal 101 again, determines the bearer types of caller and called common support;
5.2 the UTRAN/BSC 104 of calling terminal in being transmitted to the ALERTING message 201 of calling terminal 101, inserts progress indicator cell, the 101 corresponding in-band ringback operations of indication calling terminal;
5.3 calling terminal 101 is communicated with the user, comprises the loud speaker and the display device that open a terminal;
5.4 terminal called 111 is communicated with the user, comprise the loud speaker and the display device that open a terminal, and the setting of the SIGNAL cell in SETUP IND 208 message of sending according to network, produce ringing information, comprise display information prompting, audio frequency the tinkle of bells or do not carry out any caution operation;
Step 6 is when called terminal ringing, and originating switch MSC 105 initiates a call to color ring platform RIP 121, request coloring ring back tone playing 211;
Step 7 CRBT RIP 121 replys the calling of originating switch MSC 105 and according to calling and called terminal 101 and 111, plays the ring-back tone 212 of customization;
Step 8 originating switch MSC 105 takes logical caller to the speech channel between the CRBT RIP 121, and calling terminal 101 users hear the individual audible ringing 213 that terminal called 111 users are customized;
Step 9 terminal called 111 users receive calls, and off-hook is replied, and originating switch MSC 105 takes the speech channel of logical calling terminal 101 to terminal called 111, and this step further comprises:
9.1 terminal called 111 sends CONNECTION message 214 to calling terminal 101;
9.2 calling terminal 101 feeds back to terminal called 111 message CONNECTION ACK 215;
9.3 enter active state between calling terminal 101 and the terminal called 111, can converse between the user;
Step 10 originating switch MSC 105 dismantle and color ring platform RIP 121 between circuit, color ring platform RIP 121 stops ring-back tone and plays 216.
From above-mentioned prior art as seen, prior art can only realize the customization and the broadcast of personalized the tinkle of bells.A color ring platform playing audio signal.The introducing of 3G (Third Generation) Moblie fortune system provides more rich data bandwidth and communication service can for third generation user terminal; Simultaneously, 3G terminal has more powerful disposal ability, also provides effective support for more business.
Can predict, the multi-media personal CRBT will become possibility.In the multi-media personal back ring service, calling terminal not only can the uppick terminal called personalized audio the tinkle of bells of customization, can also see the information such as video, picture or literal of the personalization that terminal called customizes.
If realize the multi-media personal back ring service, such scheme can run into following problem:
The first, color ring platform RIP only provides audio frequency ring-back data, and data type lacks.
The second, the calling that calling terminal is initiated is the speech type normally, in its SETUP REQ message, has only speech carrying cell bearer capability IE, does not set up the multimedia carrying; And in the service negotiation process of above-mentioned steps 1, calling terminal 101 and UTRAN/BSC 104 also do not know whether terminal called 111 has customized multimedia back ring, therefore voice call can not consulted to be the calling of multimedia mode yet.
The 3rd, calling terminal is being listened to when watching multimedia back ring, needs the multimedia carrying; But after step 9 enters normal voice conversation state, the multimedia carrying will no longer need, and above-mentioned flow process does not provide further service negotiation process, transfers call model to speech by multimedia.
Therefore, for the multi-media personal back ring service, existing call flow and color ring platform will be no longer suitable.
Summary of the invention
Technical problem to be solved by this invention provides the implementation method of personalized multimedia back ring service in a kind of mobile communication system, can be adapted to Multimedia Ring Back Tone service and compatible existing audio frequency Ring Back Tone service, make full use of the ability that the prior art standard is provided, kept compatibility with existing system, and can support flexible configuration, method is simple, is easy to realize, makes existing system be suitable for the variation of miscellaneous service.
For solving the problems of the technologies described above, the technical scheme of the implementation method of personalized multimedia back ring service is to comprise the steps: in the mobile communication system of the present invention
Step 1, calling terminal 101 terminal called 111 that makes a call;
Step 2, originating switch MSC 105 is to 106 SRI of HLR, request call indication information;
Step 3, HLR 106 response request SRI RES 205, and return related calling information;
Step 4, according to called party information, originating switch MSC 105 initiates a call to called end office 115, sets up with request and calls out;
Step 5, terminal called 111 return to calling terminal 101 ring ALERTING message;
Step 6, when called terminal ringing, originating switch MSC 105 initiates a call to multimedia color ring back tone platform RIP 121, the request coloring ring back tone playing;
Step 7, multimedia color ring back tone platform RIP121 replys the calling of originating switch MSC 105 and according to calling terminal 101 and terminal called 111, plays the ring-back tone of customization, comprising:
7.1 the ring-back that multimedia color ring back tone platform RIP 121 is play can be audio frequency ring-back, video ring-back, pictorial information, Word message, or the combination of above-mentioned multimedia messages;
7.2 carry out service negotiation between originating switch MSC 105, UTRAN/BSC 104 and the calling terminal 101, UTRAN/BSC 104 negotiates the bearing capacity that is complementary according to the bear format of backward signalling with calling terminal 101;
Step 8, originating switch MSC 105 takes logical caller to the speech channel between the multimedia color ring back tone platform RIP 121, calling terminal 101 users receive the individual audible ringing that terminal called 111 users are customized, audio frequency, video, picture, the Word message play in the ring-back data comprising: calling terminal 101, or the combination of above-mentioned audio frequency, video, picture, Word message multimedia messages;
Step 9, terminal called 111 users receive calls, and off-hook is replied, and originating switch MSC 105 takes the speech channel of logical calling terminal 101 to terminal called 111;
Step 10, originating switch MSC 105 dismantle and multimedia color ring back tone platform RIP 121 between circuit, multimedia color ring back tone platform RIP 121 stops ring-back tone and plays, comprising: carry out service negotiation between originating switch MSC 105, UTRAN/BSC 104 and the calling terminal 101, UTRAN/BSC 104 initiates the call model of foundation in step 1 according to calling terminal 101, and the call model information that terminal called 111 is returned in step 5, negotiate the bearing capacity that is complementary with calling terminal 101.
The present invention can be on the basis of existing audio frequency individual audible ringing platform, the multi-media personal back ring service is provided, and expanded the equipment of existing color ring platform, the signaling process of compatible existing system offers the abundanter and personalized more value-added service of user to greatest extent.
Embodiment
The implementation method of the implementation method of personalized multimedia back ring service can comprise the steps: referring to shown in Figure 3 in the mobile communication system of the present invention
Step 1, calling terminal 101 terminal called 111 that makes a call, this step further comprises:
1.1 calling terminal 101 sends to UTRAN/BSC 104 and sets up request message SETUP REQ 201;
1.2UTRAN/BSC 104 send to originating switch MSC 105 and to set up Indication message EST IND 202;
1.3 calling for multimedia mode, between originating switch MSC 105, UTRAN/BSC 104 and the calling terminal 101, support situation according to link circuit resource and system, carry out service negotiation 203, determine 101 common carrying cell bearer capability IE that support of network and calling terminal;
Step 2, originating switch MSC 105 is to 106 SRI of HLR, request call indication information 204;
Step 3, HLR 106 response request SRI RES 205, and return related calling information;
Step 4, according to called party information, originating switch MSC 105 initiates a call to called end office 115, sets up with request and calls out 206, and this step further comprises:
4.1 called end office MSC 115 sends to the UTRAN/BSC 114 at terminal called 111 places and sets up request message EST REQ 207;
4.2UTRAN/BSC 114 send to terminal called 111 and to set up Indication message SETUP IND 208;
4.3 calling for multimedia mode, between called end office MSC 115, UTRAN/BSC 114 and the terminal called 111, support situation according to link circuit resource and system, carry out service negotiation 209, determine 111 common carrying cell bearer capability IE that support of network and terminal called;
Step 5, terminal called 111 return to calling terminal 101 ring ALERTING message 210, and this step further comprises:
5.1 the message that originating switch MSC 105 returns according to called end office MSC 115 is carried out service negotiation with calling terminal 101 again, determines the bearer types of caller and called common support;
5.2 the UTRAN/BSC 104 of calling terminal in being transmitted to the ALERTING message 201 of calling terminal 101, inserts progress indicator cell, the 101 corresponding in-band ringback operations of indication calling terminal;
5.3 calling terminal 101 is communicated with the user, comprises the loud speaker and the display device that open a terminal;
5.4 terminal called 111 is communicated with the user, comprise the loud speaker and the display device that open a terminal, and the setting of the SIGNAL cell in SETUP IND 208 message of sending according to network, produce ringing information, comprise display information prompting, audio frequency the tinkle of bells or do not carry out any caution operation;
Step 6, when called terminal ringing, originating switch MSC 105 initiates a call to multimedia color ring back tone platform RIP 121, request coloring ring back tone playing 211;
Step 7, multimedia color ring back tone platform RIP 121 replys the calling of originating switch MSC 105 and according to calling terminal 101 and terminal called 111, plays the ring-back tone 212 of customization, comprising:
7.1 the ring-back that multimedia color ring back tone platform RIP 121 is play can be audio frequency ring-back, video ring-back, pictorial information, Word message, or the combination of above-mentioned multimedia messages;
In multimedia back ring information, audio signal and other multi-media signals adopt separate carrying to play;
The multimedia back ring that described multimedia color ring back tone platform RIP 121 is play, at different calling terminals 101 numbers, can be different, and this difference can be provided with by the user of number under the terminal called 111;
7.2 carry out service negotiation 217 between originating switch MSC 105, UTRAN/BSC 104 and the calling terminal 101, UTRAN/BSC 104 negotiates the bearing capacity that is complementary according to the bear format of backward signalling with calling terminal 101;
Step 8, originating switch MSC 105 takes logical caller to the speech channel between the multimedia color ring back tone platform RIP 121, calling terminal 101 users receive the individual audible ringing 213 that terminal called 111 users are customized, audio frequency, video, picture, the Word message play in the ring-back data comprising: calling terminal 101, or the combination of above-mentioned audio frequency, video, picture, Word message multimedia messages;
The audible ringing information that described originating switch MSC 105 or UTRAN/BSC 104 can only be supported calling terminal 101 sends to calling terminal 101;
Described originating switch MSC 105 or UTRAN/BSC 104 can only send to calling terminal 101 with the audio frequency audible ringing information;
Step 9, terminal called 111 users receive calls, and off-hook is replied, and originating switch MSC 105 takes the speech channel of logical calling terminal 101 to terminal called 111, and this step further comprises:
9.1 terminal called 111 sends CONNECTION message 214 to calling terminal 101;
9.2 calling terminal 101 feeds back to terminal called 111 message CONNECTION ACK 215;
9.3 enter active state between calling terminal 101 and the terminal called 111, can converse between the user;
Step 10, originating switch MSC 105 dismantle and multimedia color ring back tone platform RIP 121 between circuit, multimedia color ring back tone platform RIP 121 stops ring-back tone and plays 216, comprising: carry out service negotiation 218 between originating switch MSC 105, UTRAN/BSC 104 and the calling terminal 101, UTRAN/BSC104 initiates the call model of foundation in step 1 according to calling terminal 101, and the call model information that terminal called 111 is returned in step 5, negotiate the bearing capacity that is complementary with calling terminal 101.
The present invention passes through said method, can be on the basis of existing audio frequency individual audible ringing platform, enriched the data type of using in the back ring service, the multi-media personal back ring service is provided, and expanded the equipment of existing color ring platform, the signaling process of compatible existing system offers the abundanter and personalized more value-added service of user to greatest extent.