Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
In 3G network, the realization of multimedia ringtone service has two big schemes: circuit commutative field (CircuitSwitched Domain is called for short the CS territory) scheme and IP Multimedia System (IP MultimediaSubsystem is called for short IMS) territory scheme.Following embodiment realizes that with the IMS territory multimedia ringtone service is an example, but the thought of following embodiment, be that the multi-media ringtone server sends multi-media ringtone file to UE, rather than the URL of existing multi-media ringtone file, be equally applicable to the CS territory, network element that just is specifically related to and concrete interaction flow are inequality.
The IMS territory is a subsystem that increases on packet-switched domain (Packet Switched Domain is called for short the PS territory) basis, and the IMS major function is in the control aspect, and carrying is finished by the PS territory.Early-session (Early Session) scheme and many sessions (Multi Dialog) scheme are realized specifically being divided into again in the IMS territory of multimedia ringtone service, the early-session scheme was meant before setting up the normal talking session between the calling and called, realized the broadcast of Early media (being multi-media ringtone) by carrying out early media negotiation to set up early-session.Following embodiment is an example with the early-session scheme, but the thought of following embodiment, promptly the multi-media ringtone server sends multi-media ringtone file to UE, rather than the URL of existing multi-media ringtone file, be equally applicable to many sessions scheme, the interaction flow that just is specifically related to is inequality.
Video telephone (Video Phone is called for short VP) is a kind of video communication service of point-to-point, can utilize the dynamic image and the voice signal of wired or wireless network bi-directional real-time Transmission both call sides, comprises CS domain video telephone and IMS domain video telephone.The IMS domain video telephone uses is RTP (Real-time Transfer Protocol in the stream media technology, be called for short RTP), this RTP can adopt RTCP Real-time Transport Control Protocol (Real-time Transfer Control Protocol is called for short RTCP) to control.RTP provides the service of the transmission end to end with real-time feature for data.Following embodiment transmits CAT with RTP or CRS is an example, and, the RTP passage can also transmit multi-media ringtone files such as picture, text or electronic business card, REM, web page files when transmitting CAT or CRS, so that UE shows after receiving these pictures, text or electronic business card.
Fig. 1 is the schematic flow sheet that the present invention sends the method embodiment one of multi-media ringtone file, comprising:
Step 11: multi-media ringtone file is added in signaling message or the Media Stream.
Concrete, CAT AS adds multi-media ringtone file (as picture, text, VCard etc.) in signaling message or the Media Stream to, at this moment, signaling message comprises the provisional response response that relates in 180,183 these call session processes, it is session initiation protocol (Session Initiation Protocol is called for short SIP) call signaling; The MESSAGE that does not change session status or the INFO that perhaps in conversation procedure, increase newly, the i.e. signaling that has nothing to do with session among the SIP; Media Stream comprises the RTP Media Stream that sends CAT.Perhaps, concrete, CRS AS adds multi-media ringtone file (as picture, text, electronic business card etc.) in signaling message or the Media Stream to, and at this moment, signaling message comprises that the Temporary Response acknowledge message that relates in this call session process of PRACK is the SIP call signaling; The MESSAGE that does not change session status or the INFO that perhaps in conversation procedure, increase newly, the i.e. signaling that has nothing to do with session among the SIP; Media Stream comprises the RTP Media Stream that sends CRS.Provisional response response and final response have been defined among the SIP.Set up in the process at call session, calling UE sends INVITE to called UE, called UE will be returned a provisional response response (180 or 183) to calling UE after receiving this INVITE, if comprised a request (Offer) in the INVITE, called UE just should produce one and carry the provisional response response (18X) of replying (Answer) so, so just can set up an early-session based on Offer/Answer; If do not comprise request (Offer) in the INVITE, to carry a request (Offer) in the provisional response response that called UE is returned so, calling UE receives this of provisional response that carries request response back generation and carries Temporary Response affirmation (PRACK) message of replying (Answer), so just can set up an early-session based on Offer/Answer.
Step 12: send the signaling message carry multi-media ringtone file or Media Stream to subscriber equipment.Concrete, CAT AS sends the signaling message that carries multi-media ringtone file or Media Stream to calling UE, and CRSAS sends the signaling message that carries multi-media ringtone file or Media Stream to called UE.
Present embodiment is by carrying multi-media ringtone file in signaling message that sends to UE or Media Stream, can make UE receive multi-media ringtone file itself, and then directly show, therefore, the demonstration time delay that causes of the URL that can avoid existing UE to receive multi-media ringtone file is big and have a security risk.
Fig. 2 sends the schematic network structure of embodiment one of the method correspondence of multi-media ringtone file for the present invention, comprise subscriber equipment (User Equipment, be called for short UE), be specially calling UE 201 and called UE 202, base station (NodeB) 203, radio network controller (Radio Network Controller, be called for short RNC) 204, service universal grouping wireless business supporting node (Serving General Packet RadioService, be called for short SGSN) 205, Proxy Call Session Control Function (Proxy Call Session ControlFunction, be called for short P-CSCF) 206, service call conversation control function (Serving Call SessionControl Function is called for short S-CSCF) 207, CAT AS208, home subscriber server (HomeSubscriber Server, be called for short HSS) 209, Multimedia Resource Function (Multimedia ResourceFunction is called for short MRF) 210.Calling UE 201 and called UE 202 are mutual by NodeB203, RNC204, SGSN205, P-CSCF206, S-CSCF207 and CAT AS208 respectively.HSS209 and MRF210 are mutual with CAT AS208 respectively, provide user data and media resource support to CAT AS208.Concrete, calling UE 201 is used to make a call; Called 202 are used for receipt of call; NodeB203 is used to finish the processing of air interface; RNC204 is used to control Radio Resource; SGSN205 is used to provide functions such as the routing forwarding, mobile management, session management, authentication, encryption in PS territory; P-CSCF206 is first contact point of user in the IMS network, main checking request, processing and the transmitted response be responsible for; S-CSCF207 is in the core the driver's seat in the IMS network, it is the key point of IMS multi-process control, it is responsible for record and control consumer process state, carry out the session routing function, and constantly carry out alternately with application service and billing function, carry out value-added service according to rule and trigger with business and control; CAT AS208 is the server that the CAT value-added service is provided for the user in the IMS network, can be positioned at the user attaching net, also can be provided by the third party, and being mainly used in provides CAT business, and control MRF carries out the broadcast of media resource; HSS209 is used to store user and service related data, recording user identity, log-on message, access parameter and service trigger message etc.; MRF210 comprises the processing section (MRFP) of control section (MRFC) and user plane, the business relevant with carrying provided support, as multimedia resource broadcast, video conference, user's bulletin etc., can finish the mixing of data medium stream, the distribution of Media Stream, the conversion of carrying code, the transmission of charge information etc.
Present embodiment and following Fig. 3-5 are example with following application scenarios: in multimedia color ring system, called UE is that calling UE has customized Multimedia Ring Back Tone service, concrete customized content is: when calling UE is called out called UE, multimedia polyphonic ringtone server is calling UE playing back music (or video), and the personal electric business card of called UE is sent to calling UE, and this electronic business card has comprised personal information such as the name, address, company, phone, email of called UE.Like this, calling UE just can not only be enjoyed music or video before talkthrough, can see the electronic business card of called UE simultaneously.
Fig. 3 sends the schematic flow sheet of the method embodiment two of multi-media ringtone file for the present invention.As shown in Figure 3, and referring to schematic network structure shown in Figure 2, present embodiment comprises:
Step 301: calling UE 201 is called out called UE 202.This call request approach S-CSCF207 and CAT AS208 arrive called UE 202.
Step 302: called UE 202 is returned the response of 18X (180 or 183) provisional response.This provisional response response at first arrives CAT AS208.
Step 303:CAT AS208 carries out the Ring Back Tone service logic, and is the coloring ring back tone playing reserved resource.Simultaneously, CAT AS208 adds the electronic business card of CRBT Session Description Protocol (SessionDescription Protocol is called for short SDP) request (CAT Offer SDP) and called UE in the message body of 18X message.
SDP is used to describe Multimedia session so that realize the startup of session bulletin, session invitation and other form Multimedia session.The purpose of SDP one is the existence that shows session, and its purpose of two is to transmit enough information (comprising media information, transport address and other session description informations) to give the recipient so that can add, participate in this session.
Conversation description comprises following content: the time of session name and purpose, session persistence, the medium of forming session, the information (address, port, form etc.) of receiving media needs.Because the resource of participant session may be limited, also may comprise some additional informations: the bandwidth that session need be used, the contact details of session leader in addition.
Conversation description is made up of a series of following line of text:<type 〉=<value 〉,<type〉always have only a case sensitive monocase,<value〉be the structured text string, its form depends on<type 〉, and also case sensitive.Generally,<and value〉be to be some the fields or a free-format string on boundary with the space.
And then conversation description is described zero or a plurality of media-level by a session level and is described and form.Session level partly is with " v=" beginning, describes up to first media-level.It is to describe up to next media-level description or to the whole session level with the beginning of " m=" row to finish that media-level is described.Generally, the value of session level acquiescence is suitable for all medium, unless covered by an identical media level description value.
Session level is described the detailed information that is applicable to whole session and all Media Streams, and media-level is described the detailed information that is applicable to single medium stream.Medium stream information includes: H.320 or the like medium type (as video, audio frequency or the like), host-host protocol (as STP/UDP/IP), media formats (as H.261, standard such as MPEG).
Include following each row content in the conversation description and fixed order, can improve error detection capabilities like this and only need a parser, what indicate * is option:
Conversation description:
v=(protocol?version);
o=(owner/creator?and?session?identifier);
s=(session?name);
i=*(session?information);
u=*(URI?of?description);
e=*(email?address);
p=*(phone?number);
c=*(connection?information);
b=*(bandwidth?information);
z=*(time?zone?adjustments);
k=*(encryption?key);
a=*(zero?or?more?session?attribute?lines).
Time describes:
t=(time?the?session?is?active);
r=*(zero?or?more?repeat?times).
Media description:
m=(media?name?and?transport?address);
i=*(media?title);
c=*(connection?information);
b=*(bandwidth?information);
k=*(encryption?key);
a=*(zero?or?more?media?attribute?lines).
Above-mentioned to SDP form and parameter carried out briefly bright, below the formation and the structure of an electronic business card of brief description:
RFC 2426 has described the standard of electronic business card (vCard), and the inside has defined a series of electronic business card information commonly used, as: FN, N, NICKNAME, PHOTO, BDAY, ADR, LABEL, TEL, EMAIL, MAILER, TZ, GEO, TITLE, ROLE, LOGO, AGENT, ORG, CATEGORIES, NOTE, PRODID, REV, SORT-STRING, SOUND, URL, UID, VERSION, CLASS, KEY.Also stipulated such as language and coding requirement.In example below, photograph has adopted the base64 coding:
PHOTO;ENCODING=BASE64;TYPE=JPEG:MIICajCCAdOgAwIBAgICBEUwDQYJKoZIhvcNAQEEBQAwdzELMAkGA1UEBhMCVVMxLDAqBgNVBAoTI05ldHNjYXBlIENvbW11bmljYXRpb25zIENvcnBvcmF0aW9uMRwwGgYDVQQLExNJbmZvcm1hdGlvbiBTeXN0
The concrete example of electronic business card is as follows:
BEGIN:vCard
VERSION:3.0
FN:Frank?Dawson
ORG:Lotus?Development?Corporation
ADR;TYPE=WORK,POSTAL,PARCEL:;;6544
Battleford?Drive;Raleigh;NC;27613-3502;U.S.A.
TEL;TYPE=VOICE,MSG,WORK:+1-919-676-9515
TEL;TYPE=FAX,WORK:+1-919-676-9564
EMAIL;TYPE=INTERNET,PREF:Frank_Dawson@Lotus.com
EMAIL;TYPE=INTERNET:fdawson@earthlink.net
URL:http://home.earthlink.net/~fdawson
END:vCard
In last example:
BEGIN:vCard represents that ensuing content is an electronic business card (vCard).
VERSION:3.0 represents the version number of vCard.
FN:Frank Dawson represents name.
ORG:Lotus Development Corporation represents exabyte.
ADR;TYPE=WORK,POSTAL,PARCEL:;;6544
Battleford?Drive;Raleigh;NC;27613-3502;U.S.A.
Presentation address.
TYPE=WORK, POSTAL, PARCEL presentation address classification is: work address, mail destination address and package delivering address.
TEL; TYPE=VOICE, MSG, WORK:+1-919-676-9515 represents phone.
TYPE=VOICE, MSG, WORK represent that telephone class is: voice call, information telephone and Work Telephone.
TEL; TYPE=FAX, WORK:+1-919-676-9564 represents phone.
TYPE=FAX, WORK represent that telephone class is: fax and Work Telephone.
EMAIL;TYPE=INTERNET,PREF:Frank_Dawson@Lotus.com
Expression EMAIL address.Type is INTERNET, and is first-selected EMAIL address.
EMAIL;TYPE=INTERNET:fdawson@earthlink.net
Expression EMAIL address.Type is INTERNET.
URL:http: //home.earthlin k.net/~fdawson represents homepage.
END:vCard represents that vCard finishes.
Above-mentioned concise and to the point description has been carried out in SDP request and electronic business card, concrete, be applied in the present embodiment, CAT SDP asks and the mode of electronic business card is to carry in 183:
SIP/2.0?183?Session?Progress
Via:SIP/2.0/UDP?scscf2.home2.net;
branch=z9hG4bK764z87.1,SIP/2.0/UDP
From:<sip:user1_public1@home1.net>;tag=171828
To:<tel:+1-212-555-2222>;tag=2236
Call-ID:asfed03a0sasfe0234123
Cseq:127?INVITE
Allow:INVITE,ACK,CANCEL,BYE,PRACK,UPDATE,REFER,MESSAGE
Contact:<sip:[5555::eee:fff:bbb:aaa]:8805>
Content-Type:multipart/mixed;boundary=”boundary1234”
Content-Length:xxx // above code is a SIP header field content
--boundary?1234
Content-Type:application/sdp
Content-Disposition:session
v=0
o=Bob?2987933615?2987933615?IN?IP6?6666::eee:fff:bbb:aaa
s=-
c=IN?IP6?6666::eee:fff:bbb:aaa
t=0?0
m=audio?49920?RTP/AVP?0
a=rtpmap:0?PCMU/8000
m=video?3400?RTP/AVP?98
A=rtpmap:98MPV/9000//be CAT Offer SDP content
--boundary1234
Content-Type:text/x-vCard;charset=us-ascii
BEGIN:VCARD
VERSION:2.1
N:Martin;Stephen
ORG:Lotus?Development?Corporation
TEL;HOME;VOICE:+1(210)555-1357
TEL;HOME;FAX:+1(210)555-0864
EMAIL;TYPE=INTERNET:M_Stephen@earthlink.net
ADR;WORK;PARCEL;POSTAL;DOM:123?Cliff?Ave.;Big?Town;CA;97531
END:VCARD // be the vCard content
--boundary1234--
As implied above, different with the content that has 183 message now is that wherein the value of the Conteent-Type in the SIP header field is " multipart/mixed ", shows that this sip message body is a compound type.The content of second " boundary1234 " back is the electronic business card (vCard) of called UE, and Content-Type:text/x-vCard wherein shows that the content of this increase is vCard.
Above-mentioned is example to carry electronic business card in the 18X message, in addition, other ringtone file, for example picture or text also can send to calling UE by this 18X message.The concrete mode of carrying is identical with the principle of electronic business card, and just when transmitting picture, the value of picture file Content-type before is " Image/<picture/mb-type〉"; The value of Content-type before the text message is " text/plain ".
Certainly in order to carry above-mentioned ringtone file in the 18X message, the size of these ringtone files can not surpass the scope that the message body of 18X message can be carried.
Step 304: the Temporary Response (18X message) that carries electronic business card sends to calling UE 201 through S-CSCF207.
Step 305: after calling UE 201 receives 18X message, extract the electronic business card in the message, and show in this locality.
Electronic business card can be appreciated in the CAT process in caller and showing, also can continue to show in communication process, and display mode can show by split screen, also can be in the bottom of screen roll display, or otherwise show.Concrete display strategy is set by UE is local.
After calling UE receives electronic business card, also need carry out this locality storage,, can cover or upgrade operation if stored this user's electronic business card before.
Step 306: the follow-up negotiations process of early-session.
Step 307: called UE 202 rings.
Step 308:CAT AS208 is that calling UE 201 is play CAT.
Step 309: called UE 202 off-hooks, CAT AS208 stop to play CAT for calling UE 201.
Step 310: the calling and called user carries out normal communication process.
Step 306-310 is identical with follow-up flow process after existing calling UE is obtained multi-media ringtone file, therefore brief description just, and detailed step can be referring to prior art.
Present embodiment adds the CAT ringtone file in the Temporary Response message to, and send to calling UE, because what calling UE received is CAT ringtone file itself, therefore, with respect to the existing mode that sends ringtone file URL address, the security risk that can avoid unnecessary time-delay and avoid the URL address to exist.
Fig. 4 sends the schematic flow sheet of the method embodiment three of multi-media ringtone file for the present invention.As shown in Figure 4, and referring to schematic network structure shown in Figure 2, present embodiment comprises:
Step 401: calling UE 201 is called out called UE 202.This call request approach S-CSCF207 and CAT AS208 arrive called UE 202.
Step 402: called UE 202 is returned the response of 18X (180 or 183) provisional response.This provisional response response at first arrives CAT AS208.
Step 403:CAT AS208 carries out the Ring Back Tone service logic, and is the coloring ring back tone playing reserved resource.Simultaneously, CAT AS208 adds CRBT Session Description Protocol (Session DescriptionProtocol is called for short SDP) request (CAT Offer SDP) in 18X message.The mode of carrying CAT Offer SDP in the 18X message is identical with embodiment's two, does not repeat them here.
Step 404: provisional response response (18X message) sends to calling UE 201 through S-CSCF207.
Step 405:CAT AS208 sends MESSAGE or INFO to calling UE 201, carries electronic business card in the message body of this message.Any time this step can be play CAT after the provisional response response before takes place.
With MESSAGE message is example, and the concrete form that carries is:
MESSAGE?tel:+1-212-666-3333SIP/2.0
Via:SIP/2.0/UDP?cat_as.home2.net;comp=sigcomp;
branch=z9hG4bKnashds7
Max-Fowards:70
From:<sip:user1_public1@home1.net>;tag=171828
To:<tel:+1-212-555-2222>;tag=2236
Call-ID:asfed03a0sasfe0234123
Cseq:1?MESSAGE
Allow:INVITE,ACK,CANCEL,BYE,PRACK,UPDATE,REFER,MESSAGE
Contact:<sip:[5555::111:222:333:444]:1357>
Content-Type:text/x-vCard;charset=us-ascii
Content-Length:xxx // above code is a SIP header field content
BEGIN:VCARD
VERSION:2.1
N:Martin;Stephen
ORG:Lotus?Development?Corporation
TEL;HOME;VOICE:+1(210)555-1357
TEL;HOME;FAX:+1(210)555-0864
EMAIL;TYPE=INTERNET:M_Stephen@earthlink.net
ADR;WORK;PARCEL;POSTAL;DOM:123?Cliff?Ave.;Big?Town;CA;97531
END:VCARD // be the vCard content
As implied above, different with the content of existing MESSAGE message is that wherein the value of the Content-Type in the SIP header field is " text/x-vCard ", shows that this sip message body is the vCard type.The content of BEGIN:VCARD back is the electronic business card (vCard) of called UE.
Above-mentioned is example to carry electronic business card in MESSAGE or the INFO signaling message, in addition, other ringtone file, for example picture or text also can send to calling UE by this MESSAGE or INFO signaling message.The concrete mode of carrying is identical with the principle of electronic business card, and just when transmitting picture, the value of picture file Content-type before is " Image/<picture/mb-type〉"; The value of Content-type before the text message is " text/plain ".
Certainly in order to carry above-mentioned ringtone file in MESSAGE or the INFO signaling message, the size of these ringtone files can not surpass the scope that the message body of MESSAGE or INFO can be carried.
Step 406: after calling UE 201 receives this MESSAGE or INFO, extract the electronic business card in the message, and show in this locality.
Electronic business card can be appreciated in the CAT process in caller and showing, also can continue to show in communication process, and display mode can show by split screen, also can be in the bottom of screen roll display, or otherwise show.Concrete display strategy is set by UE is local.
After calling UE receives electronic business card, also need carry out this locality storage,, can cover or upgrade operation if stored this user's electronic business card before.
Step 407: the follow-up negotiations process of early-session.
Step 408: called UE 202 rings.
Step 409:CAT AS208 is that calling UE 201 is play CAT.
Step 410: called UE 202 off-hooks, CAT AS208 stop to play CAT for calling UE 201.
Step 411: the calling and called user carries out normal communication process.
Step 407-411 is identical with follow-up flow process after existing calling UE is obtained multi-media ringtone file, therefore brief description just, and detailed step can be referring to prior art.
Present embodiment adds the CAT ringtone file in the newly-increased message that does not change session status (as MESSAGE or INFO) to, and send to calling UE, because what calling UE received is CAT ringtone file itself, therefore, with respect to the existing mode that sends ringtone file URL address, the security risk that can avoid unnecessary time-delay and avoid the URL address to exist.
Fig. 5 sends the schematic flow sheet of the method embodiment four of multi-media ringtone file for the present invention.As shown in Figure 5, and referring to schematic network structure shown in Figure 2, present embodiment comprises:
Step 501: calling UE 201 is called out called UE 202.This call request approach S-CSCF207 and CAT AS208 arrive called UE 202.
Step 502: called UE 202 is returned the response of 18X (180 or 183) provisional response.This provisional response response at first arrives CAT AS208.
Step 503:CAT AS208 carries out the Ring Back Tone service logic, and is the coloring ring back tone playing reserved resource.Simultaneously, CAT AS208 adds CRBT Session Description Protocol (Session DescriptionProtocol is called for short SDP) request (CAT Offer SDP) in 18X message.The mode of carrying CAT Offer SDP in the 18X message is identical with embodiment's two, does not repeat them here.
Step 504: provisional response response (18X message) sends to calling UE 201 through S-CSCF207.
Step 505: the follow-up negotiations process of early-session.
Step 506: called UE 202 rings.
Step 507:CAT AS208 is that calling UE 201 is play CAT, and simultaneously, CAT AS208 sends to calling UE 201 with the electronic business card of the called UE RTP Media Stream passage by multimedia color ring back tone.Present embodiment is example with the electronic business card, can also be other multi-media ringtone file such as picture, text.
Step 508: calling UE 201 is extracted the electronic business card in the RTP Media Streams, and shows in this locality.
Electronic business card can be appreciated in the CAT process in caller and showing, also can continue to show in communication process, and display mode can show by split screen, also can be in the bottom of screen roll display, or otherwise show.Concrete display strategy is set by UE is local.
After calling UE receives electronic business card, also need carry out this locality storage,, can cover or upgrade operation if stored this user's electronic business card before.
Present embodiment sends to calling UE with electronic business card and the CAT one RTP/ Media Stream that coexists in leading to, calling UE extracts electronic business card in the RTP Media Stream, present embodiment can also mixing sends to calling UE after becoming one road Media Stream with CAT with electronic business card, calling UE need not to extract electronic business card, play-overs the CAT Media Stream and gets final product.
Step 509: called UE 202 off-hooks, CAT AS208 stop to play CAT for calling UE 201.
Step 510: the calling and called user carries out normal communication process.
Present embodiment adds the CAT ringtone file in the RTP/RTCP Media Stream passage to, and send to calling UE, because what calling UE received is CAT ringtone file itself, therefore, with respect to the existing mode that sends ringtone file URL address, the security risk that can avoid unnecessary time-delay and avoid the URL address to exist.
The foregoing description two-four has been described the flow process of each network element transmission or forwarding or receiving multi-media ringtone file, if then carry out following step from the calling UE side:
Steps A 1: calling UE receives signaling message or the Media Stream that carries multi-media ringtone file.For example, carry 180 or 183 or MESSAGE or INFO of multi-media ringtone file in the foregoing description, perhaps carry the RTP Media Stream of multi-media ringtone file.
Step B1: calling UE shows the multi-media ringtone file that carries in described signaling message or the Media Stream.Concrete, can set in advance display strategy and storage/update strategy in the calling UE, the calling UE basis display strategy of equipment in advance shows described multi-media ringtone file, shows or roll display as split screen, before answering CAT, show, or in answering the CAT process, show etc.Calling UE can also be stored multi-media ringtone file or upgrades operation according to storage/update strategy of setting in advance, as receives multi-media ringtone file and promptly store, and perhaps judges and upgrades (or covering) operation after storing multi-media ringtone file.
Fig. 6 sends the schematic network structure of embodiment two of the method correspondence of multi-media ringtone file for the present invention, comprise calling UE 601 and called UE 602, base station (NodeB) 603, RNC604, SGSN605, P-CSCF606, S-CSCF607, CRS AS608, HSS609, MRF610.Except CRS AS608 is used to provide CRS, be used to provide CAT different with CAT AS208 shown in Figure 2, the effect of the respective network elements among the effect of remaining each network element and the embodiment shown in Figure 2 is identical.
Present embodiment and following Fig. 7-9 are example with following application scenarios: in the customized multimedia vibrating system, calling UE is that called UE has customized multimedia color vibration business, concrete customized content is: when calling UE is called out called UE, multimedia multi-color vibration server is called UE playing back music (or video), and the personal electric business card of calling UE is sent to called UE, and this electronic business card has comprised personal information such as the name, address, company, phone, email of calling UE.Like this, called UE just can not only be enjoyed music or video before talkthrough, can see the electronic business card of calling UE simultaneously.
Fig. 7 sends the schematic flow sheet of the method embodiment five of multi-media ringtone file for the present invention.As shown in Figure 7, and referring to schematic network structure shown in Figure 6, present embodiment comprises:
Step 701: calling UE 601 is called out called UE 602.This call request approach S-CSCF607 and CRS AS608 arrive called UE 602.
Step 702: called UE 602 is returned the response of 18X (180 or 183) provisional response.This provisional response response at first arrives CRS AS608.
Step 703:CRS AS608 carries out the color vibration business logic, and for playing the coloured silk reserved resource that shakes.
Step 704: calling UE 601 is returned the Temporary Response acknowledge message (PRACK) at the provisional response response, arrives CRS AS608 by way of S-CSCF607.
Step 705:CRS AS608 adds the shake electronic business card of SDP request (CRS Offer SDP) and calling UE of coloured silk in the message body of this provisional response response confirmation message (PRACK) to.
Wherein the description of SDP request and electronic business card can not repeat them here referring to embodiment two.
Concrete, being applied in the present embodiment, the mode of carrying CRS SDP request and electronic business card among the PRACK is:
PRACK?tel:+1-212-555-2222SIP/2.0
Via:SIP/2.0/UDP[5555::aaa:bbb:ccc:ddd]:1357;
comp=sigcomp;branch=z9hG4bKnashds7
From:<sip:user1_public1@home1.net>;tag=171828
To:<tel:+1-212-555-2222>;tag=2236
Call-ID:asfed03a0sasfe0234123Call-ID:
Cseq:128?PRACK
Contact:<sip:[5555::aaa:bbb:ccc:ddd]:1357>
RSeq:9022
Content-Type:multipart/mixed;boundary=”boundary?1234”
Content-Length:xxx // above code is a SIP header field content
--boundary1234
Content-Type:application/sdp
Content-Disposition:early-session
v=0
o=Bob?2987933615?2987933615?IN?IP6?6666::eee:fff:bbb:aaa
s=-
c=IN?IP6?6666::eee:fff:bbb:aaa
t=0?0
m=audio?49920?RTP/AVP?97
a=rtpmap :97?AMR
m=video?3400?RTP/AVP?98
A=rtpmap:98H.263 // be CAT Offer SDP content
--boundary1234
Content-Type:text/x-vCard;charset=us-ascii
BEGIN:VCARD
VERSION:2.1
N:Martin;Stephen
ORG:Lotus?Development?Corporation
TEL;HOME;VOICE:+1(210)555-1357
TEL;HOME;FAX:+1(210)555-0864
EMAIL;TYPE=INTERNET:M_Stephen@earthlink.net
ADR;WORK;PARCEL;POSTAL;DOM:123?Cliff?Ave.;Big?Town;CA;97531
END:VCARD // be the vCard content
--boundary1234--
As implied above, different with the content of existing PRACK message is that wherein the value of the Content-Type in the SIP header field is " multipart/mixed ", shows that this sip message body is a compound type.The content of second " boundary1234 " back is the electronic business card (vCard) of calling UE, and Content-Type:text/x-vCard wherein shows that the content of this increase is vCard.
Above-mentioned is example to carry electronic business card in the PRACK message, in addition, other ringtone file, for example picture or text also can send to called UE by this PRACK message.The concrete mode of carrying is identical with the principle of electronic business card, and just when transmitting picture, the value of picture file Content-type before is " Image/<picture/mb-type〉"; The value of Content-type before the text message is " text/plain ".
Certainly in order to carry above-mentioned ringtone file in the PRACK message, the size of these ringtone files can not surpass the scope that the message body of PRACK message can be carried.
Step 706: the Temporary Response acknowledge message (PRACK) of carrying electronic business card sends to called UE 601 through S-CSCF607.
Step 707: after calling UE 201 receives PRACK message, extract the electronic business card in the PRACK message, and show in this locality.
Electronic business card can show in called appreciation CRS process, also can continue to show in communication process, and display mode can show by split screen, also can be in the bottom of screen roll display, or otherwise show.Concrete display strategy is set by UE is local.
After called UE receives electronic business card, also need carry out this locality storage,, can cover or upgrade operation if stored this user's electronic business card before.
Step 708: the follow-up negotiations process of early-session, so that after consulting to finish, CRS AS608 is called UE 602 play multimedia coloured silks shake (CRS).
Step 709: called UE 602 rings.
Step 710:CRS AS608 is that called UE 602 is play CAT.
Step 711: called UE 602 off-hooks, CRS AS608 stop to play CRS for called UE 602.
Step 712: the calling and called user carries out normal communication process.
Step 708-712 is identical with follow-up flow process after existing called UE is obtained multi-media ringtone file, therefore brief description just, and detailed step can be referring to prior art.
Present embodiment adds the CRS ringtone file in the Temporary Response acknowledge message to, and send to called UE, because what called UE received is CRS ringtone file itself, therefore, with respect to the existing mode that sends ringtone file URL address, the security risk that can avoid unnecessary time-delay and avoid the URL address to exist.
Fig. 8 sends the schematic flow sheet of the method embodiment six of multi-media ringtone file for the present invention.As shown in Figure 8, and referring to schematic network structure shown in Figure 6, present embodiment comprises:
Step 801: calling UE 601 is called out called UE 602.This call request approach S-CSCF607 and CRS AS608 arrive called UE 602.
Step 802: called UE 602 is returned the response of 18X (180 or 183) provisional response.This provisional response response at first arrives CRS AS608.
Step 803:CRS AS608 carries out the color vibration business logic, and for playing the coloured silk reserved resource that shakes.
Step 804: calling UE 601 is returned Temporary Response acknowledge message (PRACK message) to called UE 602, and this message at first arrives CRS AS608 through S-CSCF607, and CRS AS608 adds CRS OfferSDP in the Temporary Response acknowledge message to.
Step 805:CRS AS608 sends MESSAGE or INFO to called UE 602, carries electronic business card in the message body of this message.Any time this step can be play CRS after the Temporary Response acknowledge message before takes place.
With MESSAGE message is example, and the concrete form that carries is:
MESSAGE?tel:+1-212-666-3333?SIP/2.0
Via:SIP/2.0/UDP?cat_as.home1.net;
comp=sigcomp;branch=z9hG4bKnashds7
Max-Fowards:70
From:<sip:user1_public1@home1.net>;tag=171828
To:<tel:+1-212-555-2222>;tag=2236
Call-ID:asfed03a0sasfe0234123
Cseq:1?MESSAGE
Allow:INVITE,ACK,CANCEL,BYE,PRACK,UPDATE,REFER,MESSAGE
Contact:<sip:[5555::111:222:333:444]:1357>
Content-Type:text/x-vCard;charset=us-ascii
Content-Length:xxx // above code is a SIP header field content
BEGIN:VCARD
VERSION:2.1
N:Martin;Stephen
ORG:Lotus?Development?Corporation
TEL;HOME;VOICE:+1(210)555-1357
TEL;HOME;FAX:+1(210)555-0864
EMAIL;TYPE=INTERNET:M_Stephen@earthlink.net
ADR;WORK;PARCEL;POSTAL;DOM:123?Cliff?Ave.;Big?Town;CA;97531
END:VCARD // be the vCard content
As implied above, wherein the value of the Content-Type in the SIP header field is " text/x-vCard ", shows that this sip message body is the vCard type.The content of BEGIN:VCARD back is the electronic business card (vCard) of calling UE.
Above-mentioned is example to carry electronic business card in MESSAGE or the INFO signaling message, in addition, other ringtone file, for example picture or text also can send to calling UE by this MESSAGE or INFO signaling message.The concrete mode of carrying is identical with the principle of electronic business card, and just when transmitting picture, the value of picture file Content-type before is " Image/<picture/mb-type〉"; The value of Content-type before the text message is " text/plain ".
Certainly in order to carry above-mentioned ringtone file in MESSAGE or the INFO signaling message, the size of these ringtone files can not surpass the scope that the message body of MESSAGE or INFO can be carried.
MESSAGE or INFO that step 806:CRS AS608 will carry electronic business card send to called UE 602.
Step 807: after called UE 602 receives this MESSAGE or INFO, extract the electronic business card in the message, and show in this locality.
Electronic business card can show in called appreciation CAT process, also can continue to show in communication process, and display mode can show by split screen, also can be in the bottom of screen roll display, or otherwise show.Concrete display strategy is set by UE is local.
After called UE receives electronic business card, also need carry out this locality storage,, can cover or upgrade operation if stored this user's electronic business card before.
Step 808: the follow-up negotiations process of early-session.
Step 809: called UE 602 rings.
Step 810:CRS AS608 is that called UE 602 is play CRS.
Step 811: called UE 602 off-hooks, CRS AS608 stop to play CRS for called UE 602.
Step 812: the calling and called user carries out normal communication process.
Step 808-812 is identical with follow-up flow process after existing called UE is obtained multi-media ringtone file, therefore brief description just, and detailed step can be referring to prior art.
Present embodiment adds the CRS ringtone file in the newly-increased message that does not change session status (as MESSAGE or INFO) to, and send to called UE, because what called UE received is CRS ringtone file itself, therefore, with respect to the existing mode that sends ringtone file URL address, the security risk that can avoid unnecessary time-delay and avoid the URL address to exist.
Fig. 9 sends the schematic flow sheet of the method embodiment seven of multi-media ringtone file for the present invention.As shown in Figure 9, and referring to schematic network structure shown in Figure 6, present embodiment comprises:
Step 901: calling UE 601 is called out called UE 602.This call request approach S-CSCF607 and CRS AS608 arrive called UE 602.
Step 902: called UE 602 is returned the response of 18X (180 or 183) provisional response.This provisional response response at first arrives CRS AS608.
Step 903:CRS AS608 carries out the color vibration business logic, and for playing the coloured silk reserved resource that shakes.
Step 904: calling UE 601 is returned Temporary Response acknowledge message (PRACK message) to called UE 602, and this message at first arrives CRS AS608 through S-CSCF607, and CRS AS608 adds CRS OfferSDP in the Temporary Response acknowledge message to.
Step 905: the follow-up negotiations process of early-session, so that after consulting to finish, CRS AS608 is called UE 602 play multimedia coloured silks shake (CRS).
Step 906: called UE 802 rings.
Step 907:CRS AS608 is that called UE 602 is play CRS, and simultaneously, CRS AS608 sends to called UE 602 with the electronic business card of the calling UE RTP Media Stream passage by multimedia color vibration.Present embodiment is example with the electronic business card, can also be other multi-media ringtone file such as picture, text.
Step 908: called UE 602 is extracted the electronic business card in the RTP/RTCP Media Streams, and shows in this locality.
Electronic business card can show in called appreciation CRS process, also can continue to show in communication process, and display mode can show by split screen, also can be in the bottom of screen roll display, or otherwise show.Concrete display strategy is set by UE is local.
After called UE receives electronic business card, also need carry out this locality storage,, can cover or upgrade operation if stored this user's electronic business card before.
Present embodiment sends to called UE with electronic business card and the CRS one RTP Media Stream that coexists in leading to, called UE extracts electronic business card in the RTP Media Stream, present embodiment can also mixing sends to called UE after becoming one road Media Stream with CRS with electronic business card, called UE need not to extract electronic business card, play-overs the CRS Media Stream and gets final product.
Step 909: called UE 602 off-hooks, CRS AS608 stop to play CRS for called UE 602.
Step 910: the calling and called user carries out normal communication process.
Present embodiment adds the CRS ringtone file in the RTP Media Stream passage to, and send to called UE, because what called UE received is CRS ringtone file itself, therefore, with respect to the existing mode that sends ringtone file URL address, the security risk that can avoid unnecessary time-delay and avoid the URL address to exist.
The foregoing description five-seven has been described the flow process of each network element transmission or forwarding or receiving multi-media ringtone file, if then carry out following step from the called UE side:
Steps A 2: called UE receives signaling message or the Media Stream that carries multi-media ringtone file.For example, the PRACK that carries multi-media ringtone file in the foregoing description or MESSAGE or INFO perhaps carry the RTP Media Stream of multi-media ringtone file.
Step B2: called UE shows the multi-media ringtone file that carries in described signaling message or the Media Stream.Concrete, can set in advance display strategy and storage/update strategy in the called UE, the called UE basis display strategy of equipment in advance shows described multi-media ringtone file, shows or roll display as split screen, before answering CRS, show, or in answering the CRS process, show etc.Called UE can also be stored multi-media ringtone file or upgrades operation according to storage/update strategy of setting in advance, as receives multi-media ringtone file and promptly store, and perhaps judges and upgrades (or covering) operation after storing multi-media ringtone file.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Figure 10 is the structural representation of multimedia polyphonic ringtone server embodiment of the present invention, comprises that CRBT adds module 101 and CRBT sending module 102.CRBT adds module 101 the CAT file is added in signaling message or the Media Stream, is specially 181 or 183 or the message body or the RTP/RTCP Media Stream of MESSAGE or INFO; Signaling message that carries the CAT file that CRBT sending module 102 transmission CRBT interpolation modules 101 obtain or Media Stream are to calling UE.
Wherein, CRBT adds the message body that module 101 specifically is used for the CAT file is multiplexed into the SIP call signaling, further, is used for the CAT file is multiplexed into the message body of 180 or 183 message; Perhaps, CRBT adds module 101 and specifically is used for the CAT file is added in the message body of the irrelevant signaling of SIP and session, further, is used for the CAT file is added to the message body of MESSAGE or INFO; Perhaps, CRBT adds module 101 and specifically is used for adding the CAT file to the RTP Media Stream, further, is used for the CAT file is added to the Media Stream passage of CAT or the CAT file is become one road Media Stream with the CAT mixing.
Wherein, above-mentioned CAT file comprises picture, text, electronic business card, RME, web page files etc.
Present embodiment makes calling UE receive CAT file itself by the CAT file is added in the signaling message or Media Stream that sends to calling UE, and the time delay that can avoid the existing URL that receives the CAT file to cause reaches problem more greatly, the problem includes: the security risk problem.
Figure 11 is the structural representation of multimedia multi-color vibration server embodiment of the present invention, comprises that coloured silk shakes to add module 111 and the coloured silk sending module 112 that shakes.Coloured silk shakes and adds module 111 the CRS file is added in signaling message or the Media Stream; Shake sending module 112 of coloured silk sends the signaling message that carries the multimedia color vibration file or Media Stream to called UE.
Wherein, coloured silk shakes and adds the message body that module 111 specifically is used for the CRS file is multiplexed into the SIP call signaling, further, is used for the CRS file is multiplexed into the message body of PRACK message; Perhaps, coloured silk shakes and adds module 111 and specifically be used for the CRS file is added in the message body of the irrelevant signaling of SIP and session, further, is used for the CRS file is added to the message body of MESSAGE or INFO; Perhaps, coloured silk shakes and adds module 111 and specifically be used for adding the CRS file to the RTP Media Stream, further, is used for the CRS file is added to the Media Stream passage of CRS or the CRS file is become one road Media Stream with the CRS mixing.
Wherein, above-mentioned CRS file comprises picture, text, electronic business card, ME, web page files etc.
Present embodiment makes called UE receive CRS file itself by the CRS file is added in the signaling message or Media Stream that sends to called UE, and the time delay that can avoid the existing URL that receives the CRS file to cause reaches problem more greatly, the problem includes: the security risk problem.
Figure 12 comprises receiver module 121 and display module 122 for the structural representation of subscriber equipment embodiment of the present invention.Receiver module 121 receives signaling message or the Media Stream that carries multi-media ringtone file, and wherein if this UE is used for Calling Side, then multi-media ringtone file is the CAT file.If this UE is used for callee side, then multi-media ringtone file is the CRS file; No matter and be CAT file or CRS file, its file type all can be picture, text, electronic business card, RME or web page files etc.; Display module 122 shows or/and store or/and play the multi-media ringtone file that carries in described signaling message or the Media Stream.
Further, present embodiment can also comprise presetting module and storage/update module, and presetting module is used to store display strategy and the storage/update strategy that sets in advance; Storage/update module is used for the storage/update strategy storage that sets in advance according to presetting module or upgrades described multi-media ringtone file; At this moment, display module 122 is used for showing described multi-media ringtone file according to the display strategy that presetting module sets in advance.
What the subscriber equipment of present embodiment received is multi-media ringtone file, rather than the URL of multi-media ringtone file, therefore can directly show after receiving multi-media ringtone file, reduces the safety that shows time delay and guarantee multi-media ringtone file.
Figure 13 comprises calling UE 131 and CAT AS132 for the structural representation of multimedia color ring system embodiment of the present invention.CAT AS132 sends signaling message or the Media Stream that carries the multimedia color ring back tone file; Calling UE 131 receives this signaling message or the Media Stream of CAT AS132 transmission and shows described multimedia color ring back tone file.
Concrete, CAT AS132 is CAT AS shown in Figure 10, calling UE 131 is applied to the situation of Calling Side for the UE of Figure 12.
The calling UE of present embodiment can receive the URL of CAT file itself rather than CAT file, and the time delay that causes in the time of can avoiding receiving URL reaches problem greatly, the problem includes: the security risk problem.
Figure 14 comprises CRS AS141 and called UE 142 for the structural representation of multimedia color vibration system embodiment of the present invention.CRS AS141 sends signaling message or the Media Stream that carries the multimedia color vibration file; Called UE 142 receives this signaling message or the Media Stream of CRS AS141 transmission and shows described multimedia color vibration file.
Concrete, CRS AS141 is CRS AS shown in Figure 11, called UE is applied to the situation of callee side for the UE of Figure 12.
The called UE of present embodiment can receive the URL of CRS file itself rather than CRS file, and the time delay that causes in the time of can avoiding receiving URL reaches problem greatly, the problem includes: the security risk problem.
It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.