CN101702710A - Control method of multimedia color ring back tone service in multimedia subsystem domain and system - Google Patents
Control method of multimedia color ring back tone service in multimedia subsystem domain and system Download PDFInfo
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- CN101702710A CN101702710A CN200910207435A CN200910207435A CN101702710A CN 101702710 A CN101702710 A CN 101702710A CN 200910207435 A CN200910207435 A CN 200910207435A CN 200910207435 A CN200910207435 A CN 200910207435A CN 101702710 A CN101702710 A CN 101702710A
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- user terminal
- called user
- message
- crbt center
- ring back
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42017—Customized ring-back tones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1101—Session protocols
- H04L65/1104—Session initiation protocol [SIP]
Abstract
The invention discloses a control method of a multimedia color ring back tone service in a multimedia subsystem domain and a system. In the method, a calling user terminal calls a called user terminal with the application of the color ring back tone service and sends a request message to a color ring back tone center corresponding to the called user terminal; the color ring back tone center receives the request message and then forwards the request message to the called user terminal; the called user terminal sends a response message to the color ring back tone center after receiving the request message; and the color ring back tone center triggers the color ring back tone service after receiving the response message of the called user terminal, negotiates with a media and then sends a negotiation result to the calling user terminal and plays color ring back tone after receiving the response message returned by the calling user terminal. By reducing the resource reservation of a calling update message after a reliable response message, the invention reduces the time for establishing a call between a calling party and a called party and improves the speed for establishing the call.
Description
Technical field
The invention belongs to communication technical field, relate in particular to the control method and the system of Multimedia Ring Back Tone service in a kind of IMS (IP multimedia subsystem, IMS) network domains.
Background technology
IMS (IP multimedia subsystem, IMS) is one and is based upon on SIP (conversation initialized protocol) basis, merged data, voice and mobile network's system.The IMS technology has been done further decomposition to the key-course function, realized conversation control entity CSCF (Call Session Control Function) and carrying controlled entity MGCF (Media Gateway Control Function) separating on function, made the network architecture more open, flexible.Core net generally is divided into PCSCF (Proxy-CSCF, proxy CSCF), ICSCF (Interrogating CSCF, inquiry CSCF) and SCSCF (Serving CSCF, serving CSCF), and they all are sip servers in essence, the treatment S IP signaling.Wherein PCSCF is responsible for the communication with user UE, and ICSCF is responsible for and other SCSCF communications, SCSCF be responsible for core net under other business network element carry out communication.
Along with the development of technology, CRBT audio frequency and video function also has good application constantly perfect in the existing IMS territory, and to exhale flow process to set up Session Time longer but the Ring Back Tone service in conventional I MS territory is two.
Specifically, existing two CRBT of exhaling adopt UPDATE (renewal) message to carry out more new media again in PRACK (reliable response message) back, just carry out the negotiation of calling and called before polyphonic ringtone playing.Many UPDATE message on signaling, and UPDATE message is responsible for resource reservation, and the time that needs is more longer relatively.
Summary of the invention
Technical problem to be solved by this invention provides the control method and the system of Multimedia Ring Back Tone service in a kind of IMS territory, can set up the conversation between the calling and called faster.
In order to solve the problems of the technologies described above, the invention provides the control method of Multimedia Ring Back Tone service in a kind of multimedia subsystem domain, comprising:
Call subscriber terminal is called out the called user terminal of having applied for Ring Back Tone service, sends a request message to the CRBT center of this called user terminal correspondence;
Called user terminal is given with the described request forwards after receiving described request message in described CRBT center; Described called user terminal sends a response message to described CRBT center after receiving described request message;
Ring Back Tone service is triggered after receiving the response message of described called user terminal in described CRBT center, the result that this CRBT center carries out will consulting behind the media negotiation sends to described call subscriber terminal, and puts the CRBT sound after receiving the response message that described call subscriber terminal returns.
Furthermore,
Described CRBT center is transmitted in the request message of called user terminal and carries the Session Description Protocol SDP information of call subscriber terminal, and carries the service key information or the access code information of called user terminal.
Furthermore,
Described CRBT center is by core net the result of described negotiation to be sent described call subscriber terminal.
Furthermore,
After described called user terminal is received described request message, by the serving session control entity of described called user terminal correspondence to described CRBT center transmitted response message, the SDP information of not carrying this called user terminal in this response message.
Furthermore,
Described call subscriber terminal receives that the response message that returns to this CRBT center behind the result of negotiation is a reliable response prack message.
In order to solve the problems of the technologies described above, the present invention also provides the control system of Multimedia Ring Back Tone service in a kind of multimedia subsystem domain, comprising: CRBT center and service conversation control entity SCSCF, wherein,
Described CRBT center when the called user terminal of Ring Back Tone service has been applied in the call subscriber terminal calling, is used to receive the request message that call subscriber terminal sends, and gives called user terminal with the described request forwards; After receiving the response message of this called user terminal transmission, trigger Ring Back Tone service; The result who carries out will consulting behind the media negotiation sends to described call subscriber terminal, puts the CRBT sound after receiving the response message of this call subscriber terminal;
Described SCSCF after being used to receive the described request message of transmitting at described CRBT center, issues described called user terminal with this request message; Receive this called user terminal and receive the response message that returns after the described request message, and this response message is issued described CRBT center.
Furthermore,
Carry the Session Description Protocol SDP information of call subscriber terminal in the described request message that described CRBT center receives, and carry the service key information or the access code information of called user terminal.
Furthermore,
Described CRBT center is by core net the result of described negotiation to be sent described call subscriber terminal.
Furthermore,
Described CRBT center receives the SDP information of not carrying this called user terminal in the response message that this called user terminal that this SCSCF transmits sends.
Furthermore,
Described CRBT center receives that the response message that described call subscriber terminal returns is a reliable response prack message.
Use the present invention, by after reliable response message PRACK message, reducing the resource reservation of caller UPDATE message, reduced calling and called to a certain extent and set up the time of conversing, accelerated to set up the speed of conversation, the transmission of signaling is wanted soon than the two methods of flow process of exhaling of existing employing.The present invention in the video color ring service, has good application prospects in the IMS territory in future.
Description of drawings
Fig. 1 is the control method flow chart of the Multimedia Ring Back Tone service of the embodiment of the invention.
Fig. 2 is the method flow diagram of application example of the present invention.
Fig. 3 is the control system block diagram of the Multimedia Ring Back Tone service of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing and preferred implementation technical solution of the present invention is elaborated.
With reference to shown in Figure 1, the method flow diagram for the embodiment of the invention comprises:
The calling subscriber calls out the called subscriber in the step 101.IMS territory, invite message is given to the CRBT (CRBT center) of called subscriber's correspondence;
Wherein, the called subscriber has applied for Ring Back Tone service, the calling subscriber is given to invite message at the CRBT center of called subscriber's correspondence, wherein invite message is carried SDP (Session Description Protocol, the Session Description Protocol) information of called subscriber's corresponding business key information or access code information and caller;
Step 102. CRBT center is transmitted to SCSCF (serving session control entity) after receiving invite message, after SCSCF receives message is issued the called subscriber;
Step 103. called subscriber returns 180 message to SCSCF after receiving invite message, and wherein, this 180 message is not carried SDP information, and 180 message that SCSCF will receive are issued the CRBT center;
Trigger Ring Back Tone service after 180 message are received at step 104. CRBT center, send out invite message call tone playing equipment;
Result after step 105. CRBT center and calling subscriber carry out will consulting behind the media negotiation sends to core net, and core net passes through the calling subscriber;
Step 106. calling subscriber returns prack (reliable response) message to the CRBT center;
Step 107. tone playing equipment is put the CRBT sound after receiving this message.
Below by the example in the concrete application technical solution of the present invention is further specified.
When being primarily aimed at SCSCF below and calling out and the Signalling exchange between the CRBT center be described.
Step 1: the SDP information that INVITE carries caller is initiated in caller, has omitted the PCSCF of core net and drawing of ICSCF herein, because emphasis is that SCSCF and CRBT center are mutual;
Step 2:SCSCF gives the CRBT center according to IFC (initial filter standard or norm) triggering rule with calling.IFC is the function of core net, can obtain user profile when the user logins, and determines the route order and the rule of INVITE;
Step 3: the MRBT AS (multimedia polyphonic ringtone server) of callee side receives INVITE, carrying out necessary Business Processing, after obtaining functions such as bell message breath, initiate a new calling to callee side, and association is carried out in calling, so that can provide correct response after receiving response message; This calls out and at first issues SCSCF;
Step 4:SCSCF is given to calling called;
Step 5: after callee side UE receives INVITE, reply not 180 message with SDP.This message is notice caller ALERTING message;
Step 6:SCSCF returns 180 message by the route of returning of INVITE, at first issue the CRBT center;
Step 7: when MRBT AS (multimedia polyphonic ringtone server) receives 180 message of callee side, to tone playing equipment MRF (Media Resource Function, media resource function) unit sends the INVITE of band caller SDP, sets up the media negotiation of caller and MRF;
Step 8:MRF returns 200ok invite message.With the SDP that goes up after MRF and caller are consulted, have the audio frequency after caller and MRF consult in this message, video code model, the address of ms, port and some other relevant information;
Step 9: ACK message is returned to MRF in the CRBT center, finishes the call proceeding with MRF.
Step 10: the SDP after MRF and caller are consulted in the CRBT center takes out, and issues SCSCF by 180 message that send a new band SDP; In this message with the negotiation result of caller and MRF.
Step 11:SCSCF passes to caller with 180 message.The REQUIRE 100REL field of stipulating in the band agreement in this message.This field need to represent the other side to return PRACK message, and PRACK message is reliable response message.Can claim that also 180 message with REQUIRE 100REL field are reliable news.The media negotiation operation that just is over once complete after this message is received in caller.Media negotiation is to occur in pairs in agreement the inside, and the corresponding ANSWER of OFFER if receive ANSWER, receives that equipment is thought automatically after the message of band SDP again and is OFFER.
Step 12: because band REQUIRE 100REL in 11 steps, caller is returned PRACK and is responded to SCSCF.
Step 13:SCSCF responds PRACK message and gives the CRBT center.
After step 14:MRBT AS receives PRACK message, carry out playback control, notice MRF give calling audio playback.The CRBT center can be sent out INFO and notify its broadcast actual physical CRBT sound to MRF at this moment.INFO is indication playback message, and MRF could the coloring ring back tone playing sound after receiving this message.
Step 15-19: 180 message that the CRBT response is called send the PRACK response message to called.Called receiving returned 200OK PRACK message after the PRACK message.CRBT also sends the PRACK response message to caller.
Step 20: the called UE off-hook, the 200OK message (carry the SDP after consulting with caller, this message is an ANSWER message) that sends response initial INVITE message is given SCSCF.
Step 21:SCSCF issues the CRBT center with this message.
Step 22: respective handling is done after receiving this message in the CRBT center.Because media negotiation has been finished in caller one time, so if the called negotiation result of transparent transmission can cause the medium vibration, so the CRBT center need be with this message block.So send to a called ACK message, notify its first call proceeding to finish.
Step 23:SCSCF gives the ACK forwards called.
Step 24-25: consult in order to carry out calling and called again, CRBT center AS sends a REINVITE who does not carry SDP to called UA, begins to set up calling UE and directly is connected with called UE, makes caller and the called media negotiation that carries out again;
Step 26-27: called UE is wherein carried called SDP (OFFER) message to called AS loopback 200OK because calledly carried out negotiation, so this time to called be OFFER;
Step 28～29: called AS sends the session updates request by UPDATE message to calling UE, because a call proceeding is not also finished concerning caller, upgrades so carry out medium with UPDATE message.The SDP of the SDP (OFFER) in the UPDATE wherein for carrying among one 200 OK on the called UE, if the SDP in the step 20 has video coding (voice are answered), the SDP that carries in UPDATE should not have the video coding yet;
Step 30-31: after calling UE was received UPDATE message, the SDP (ANSWER) after consulting with called UE was wherein carried in 200 responses of loopback UPDATE, and caller is finished calling and called and consulted;
Step 32-33: CRBT center AS sends the 200OK response that receives first called INVITE to calling UE; Make caller finish one step completed call proceeding.
Step 34-35: after calling UE is received the 200OK INVITE, return ACK message, finish last response message to the MRBT platform;
Step 36-37:MRBT platform sends ACK to called UE, notifies called second INVITE to continue and finishes, and carries the SDP after consulting with caller in ACK message, called receive this SDP after, calling and called have just been finished once complete media negotiation.Set up the session between the calling and called UE.
Flow process of the present invention is optimized on existing basis, makes that to set up Session Time shorter.
With reference to shown in Figure 3, be the control system block diagram of the Multimedia Ring Back Tone service of the embodiment of the invention.Described system comprises: CRBT center 301 and service conversation control entity (SCSCF) 302, wherein,
Described CRBT center 301 is used for receiving the request message that call subscriber terminal 303 sends, and giving called user terminal 304 with the described request forwards when call subscriber terminal 303 callings have been applied for the called user terminal 304 of Ring Back Tone service; After receiving the response message of these called user terminal 304 transmissions, trigger Ring Back Tone service; The result who carries out will consulting behind the media negotiation sends to described call subscriber terminal 303, puts the CRBT sound after receiving the response message of this call subscriber terminal 303;
Described SCSCF302 after being used to receive the described request message of transmitting at described CRBT center 301, issues described called user terminal 304 with this request message; Receive this called user terminal 304 and receive the response message that returns after the described request message, and this response message is issued described CRBT center 301.
In a preferred embodiment of the invention, carry the Session Description Protocol SDP information of call subscriber terminal 303 in the described request message that described CRBT center 301 receives, and carry the service key information or the access code information of called user terminal 304.
In another preferred embodiment of the present invention, described CRBT center 301 is by core net the result of described negotiation to be sent described call subscriber terminal 303.
In another preferred embodiment of the present invention, the SDP information of not carrying this called user terminal 304 in the response message that this called user terminal 304 that described CRBT center 301 these SCSCF302 of reception transmit sends.
In another preferred embodiment of the present invention, described CRBT center 301 receives that the response message that described call subscriber terminal 303 returns is a reliable response prack message.
It is to be noted; the above is a preferred implementation of the present invention; be not limited to the technical solution; any those of ordinary skill in the art replaced or corresponding improvement the technology of the present invention feature being equal to of being done; still within protection scope of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (10)
1. the control method of Multimedia Ring Back Tone service in the multimedia subsystem domain is characterized in that, comprising:
Call subscriber terminal is called out the called user terminal of having applied for Ring Back Tone service, sends a request message to the CRBT center of this called user terminal correspondence;
Called user terminal is given with the described request forwards after receiving described request message in described CRBT center; Described called user terminal sends a response message to described CRBT center after receiving described request message;
Ring Back Tone service is triggered after receiving the response message of described called user terminal in described CRBT center, the result that this CRBT center carries out will consulting behind the media negotiation sends to described call subscriber terminal, and puts the CRBT sound after receiving the response message that described call subscriber terminal returns.
2. control method as claimed in claim 1 is characterized in that,
Described CRBT center is transmitted in the request message of called user terminal and carries the Session Description Protocol SDP information of call subscriber terminal, and carries the service key information or the access code information of called user terminal.
3. control method as claimed in claim 1 is characterized in that,
Described CRBT center is by core net the result of described negotiation to be sent described call subscriber terminal.
4. as any described control method of claim 1 to 3, it is characterized in that,
After described called user terminal is received described request message, by the serving session control entity of described called user terminal correspondence to described CRBT center transmitted response message, the SDP information of not carrying this called user terminal in this response message.
5. as any described control method of claim 1 to 3, it is characterized in that,
Described call subscriber terminal receives that the response message that returns to this CRBT center behind the result of negotiation is a reliable response prack message.
6. the control system of Multimedia Ring Back Tone service in the multimedia subsystem domain is characterized in that,
Comprise: CRBT center and service conversation control entity SCSCF, wherein,
Described CRBT center is used for receiving the request message that call subscriber terminal sends, and giving called user terminal with the described request forwards when the called user terminal of Ring Back Tone service has been applied in the call subscriber terminal calling; After receiving the response message of this called user terminal transmission, trigger Ring Back Tone service; The result who carries out will consulting behind the media negotiation sends to described call subscriber terminal, puts the CRBT sound after receiving the response message of this call subscriber terminal;
Described SCSCF after being used to receive the described request message of transmitting at described CRBT center, issues described called user terminal with this request message; Receive this called user terminal and receive the response message that returns after the described request message, and this response message is issued described CRBT center.
7. control system as claimed in claim 6 is characterized in that,
Carry the Session Description Protocol SDP information of call subscriber terminal in the described request message that described CRBT center receives, and carry the service key information or the access code information of called user terminal.
8. control system as claimed in claim 6 is characterized in that,
Described CRBT center is by core net the result of described negotiation to be sent described call subscriber terminal.
9. as any described control system of claim 6 to 8, it is characterized in that,
Described CRBT center receives the SDP information of not carrying this called user terminal in the response message that this called user terminal that this SCSCF transmits sends.
10. as any described control system of claim 6 to 8, it is characterized in that,
Described CRBT center receives that the response message that described call subscriber terminal returns is a reliable response prack message.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910207435A CN101702710A (en) | 2009-11-03 | 2009-11-03 | Control method of multimedia color ring back tone service in multimedia subsystem domain and system |
| PCT/CN2010/071179 WO2010145234A1 (en) | 2009-11-03 | 2010-03-22 | Control method and system for multimedia ring back tone service in the multimedia subsystem field |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910207435A CN101702710A (en) | 2009-11-03 | 2009-11-03 | Control method of multimedia color ring back tone service in multimedia subsystem domain and system |
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| CN200910207435A Pending CN101702710A (en) | 2009-11-03 | 2009-11-03 | Control method of multimedia color ring back tone service in multimedia subsystem domain and system |
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| WO (1) | WO2010145234A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113301215A (en) * | 2021-05-07 | 2021-08-24 | 隆讯(徐州)智能科技有限公司 | Method for negotiating specific encoding and decoding based on AS (application server) cooperative terminal |
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| CN100450003C (en) * | 2006-08-16 | 2009-01-07 | 华为技术有限公司 | Method and system for implementing non-speech channel alternate multimedia color ring service |
| CN101267597B (en) * | 2007-03-13 | 2012-04-04 | 华为技术有限公司 | Method, system and device for realizing multimedia CRBT and multimedia color image service |
| CN102595350B (en) * | 2007-07-04 | 2014-11-05 | 华为技术有限公司 | Method, system and device for realizing multimedia coloring ring back tone service |
| CN101083844B (en) * | 2007-07-18 | 2011-06-22 | 中兴通讯股份有限公司 | Method and system for realizing non-voice circuit bypass multimedia color bell service in IMS network |
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2009
- 2009-11-03 CN CN200910207435A patent/CN101702710A/en active Pending
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- 2010-03-22 WO PCT/CN2010/071179 patent/WO2010145234A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113301215A (en) * | 2021-05-07 | 2021-08-24 | 隆讯(徐州)智能科技有限公司 | Method for negotiating specific encoding and decoding based on AS (application server) cooperative terminal |
| CN113301215B (en) * | 2021-05-07 | 2022-05-31 | 隆讯(徐州)智能科技有限公司 | Method for negotiating specific encoding and decoding based on AS (application server) cooperative terminal |
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| WO2010145234A1 (en) | 2010-12-23 |
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