CN1972340A - An implementation method of video color ring service in IMS domain - Google Patents
An implementation method of video color ring service in IMS domain Download PDFInfo
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Abstract
This invention relates to one method to realize visual frequency color ring business in IMS zone, which comprises the following steps: user starts IMS dialogue and the CSCF judging called user for contract visual color ring and triggers color ring business to AS; when called user number, AS requires MRF function on QoS negotiation results to play current dialogue media flow color ring. This invention fully uses IMS network to support multi-media information and network QoS negotiation ability to fatherly improve color ring for flexible visual frequency color ring business.
Description
Technical field
The present invention relates to IP Multimedia System (hereinafter to be referred as: IMS), particularly in the IMS territory, realize the method for video color ring service.
Background technology
Present global system for mobile communications (hereinafter to be referred as: GSM), code division multiple access (hereinafter to be referred as: CDMA) or even in the fixed telephone network, carrying out of personalized ring back tone service is like a raging fire, and has obtained great success.When other users (calling subscriber) call out the Subscriber Number (called subscriber) of this Customized Ring Back Tone registration, before it connects off-hook, the calling subscriber is put the message that a section music, advertisement or called subscriber oneself sets, at this moment the calling subscriber hears the Customized Ring Back Tone of being set in system by service-user exactly, and this mode has been accepted by people gradually and extensively adopted.
In the IMS network, inheriting and develop this business is a matter of course feelings, on the one hand since the IMS session at be multimedia messages, on the other hand, the IMS network has negotiation of media streams mechanism flexibly.A kind of video class CRBT solution that the IMS network adopted that more meets of enhancing has been arisen at the historic moment in this case.In the time of can supporting video media stream for the calling subscriber, give calling subscriber's displaying video class CRBT, when do not support video class Media Stream or corresponding business quality (hereinafter to be referred as: when QoS) not reaching certain requirement, play the ring-back tone of traditional CRBT sound or even " pout, pout " to the calling subscriber.
For the video class multimedia ring service system is described better, provide illustrating of existing system below.Fig. 1 has illustrated the system configuration of IMS territory video color ring service:
101: subscriber equipment (hereinafter to be referred as: UE), refer to be registered to all users in IMS territory, comprise portable terminal, fixed terminal, SIP software terminal etc.;
102: CSCF (hereinafter to be referred as: CSCF), it is the calling control core of IMS system, CSCF can be subdivided into from the function logic: and proxy CSCF (hereinafter to be referred as: P-CSCF), the inquiry CSCF (hereinafter to be referred as: I-CSCF) and professional CSCF (hereinafter to be referred as: S-CSCF), P-CSCF is first access point of IMS system, be used for call request is acted on behalf of to I-CSCF or terminal, and responsible generation call detail record (hereinafter to be referred as: CDR), set up safety with terminal and be connected; I-CSCF mainly is responsible for to HSS inquiry homing position information endpoint registration information and the correct pathfinding of calling being arrived S-CSCF; S-CSCF mainly finishes endpoint registration, calls out control and processing capacity, and to the application server trigger intelligent business.
103: application server (hereinafter to be referred as: AS), for example: SIP AS, OSA AS and CAMELIM-SSF provide value-added service, and it can be positioned at user's home network or third-party position;
104: Multimedia resource function controller (MRFC) (hereinafter to be referred as: MRFC) handle with Multimedia Resource Function (hereinafter to be referred as: MRFP), MRFC mainly finishes the media resource controlled function among the MRFP, this functional entity can with AS on a physical entity, interface protocol between MRFC and the MRFP can adopt H.248 agreement or Session Initiation Protocol, up-to-date standard with 3GPP is as the criterion, and adopts among the figure H.248 to be described for example;
105: Multimedia resource function processor (MRFP) (hereinafter to be referred as: MRFP), MRFP handles the resource relevant with depositing medium.
Fig. 2 be the mobile initiation that has application server to participate in the existing method (hereinafter to be referred as MO) conversation procedure:
201:UE sends INVITE and asks CSCF, and wherein SDP comprises the media capability that UE supports;
202:CSCF responds 100 Trying to the INVITE request of receiving;
203:CSCF (should be the S-CSCF functional module of system) carries out the initial filter standard or norm assessment according to user's business datum;
204:CSCF forwards AS to before INVITE is asked;
205:AS responds 100 Trying to the INVITE request of receiving;
206:AS carries out corresponding business to be triggered, and decides the position of next jumping;
Change the INVITE request before the 207:AS;
208:AS receives 100 Trying Temporary Responses to the INVITE request;
209:AS receives the response of 183 session progress, and wherein SDP comprises the Media Stream ability that destination is supported;
210:AS forwards CSCF to before with 183 session progress;
211:CSCF (should be the P-CSCF functional module of system) authorizes the QoS resource based on the local policy of operator;
Change 183 session progress before the 212:CSCF to UE;
213:UE decides the used Media Stream of this session according to the Media Stream ability received in 183 session progress, and the media stream packets that this is final is contained among the new SDP, sends to CSCF with the PRACK request;
214:UE is initiated as the required resource reservation process of this session according to the Media Stream characteristic that is determined;
215:CSCF forwards AS to before PRACK is asked;
Before continuing, changes 216:AS the PRACK request;
217:AS receives the 200 OKs response of destination to the PRACK request;
218:AS forwards CSCF to before 200 OK are responded;
219:CSCF forwards UE to before 200 OK are responded;
220: the resource reservation process of initiating as UE finishes, and UE sends the UPDATE request and notifies the other side;
221:CSCF forwards AS to before UPDATE is asked;
Before continuing, changes 222:AS the UPDATE request;
223:AS receives the 200 OKs response of destination to the UPDATE request;
224:AS forwards CSCF to before 200 OK are responded;
225:CSCF forwards UE to before 200 OK are responded;
226:AS receives the 180 Ringing response of opposite end;
227:AS forwards CSCF to before 180 Ringing are responded;
228:CSCF forwards UE to before 180 Ringing are responded;
229:UE indication calling subscriber is called just in ring, and the PRACK request is responded in response to 180 Ringing;
230:CSCF forwards AS to before PRACK is asked;
Before continuing, changes 231:AS the PRACK request;
232:AS receives the 200 OKs response of destination to the PRACK request;
233:AS forwards CSCF to before 200 OK are responded;
234:CSCF forwards UE to before 200 OK are responded;
235: when called party answer, AS receives the final 200 OKs response of destination to the INVITE request;
236:AS forwards CSCF to before 200 OK are responded;
237:CSCF (should be the P-CSCF functional module of system) ratifies the QoS that submits to;
238:CSCF forwards UE to before 200 OK are responded;
239:UE begins the Media Stream of this session, and the ACK request is responded in response to 200 OK;
240:CSCF forwards AS to before ACK is asked;
Change ACK before 241:AS continues and ask destination
At present GSM, in CDMA and the PSTN/ISDN network, be subject to the Media Stream ability that network supports and the deficiency of network negotiate ability, Customized Ring Back Tone generally is message of a section music, advertisement or service-user or the like, and playing under the unsuccessful situation of Customized Ring Back Tone in some cases, also can cause call failure, these all are the places that need tighten and improve.
Summary of the invention
The purpose of this invention is to provide video color ring service implementation method in a kind of IMS territory.
For achieving the above object, a kind of method that realizes video color ring service in the IMS territory comprises step:
(1) user is in the IMS initiation session, and CSCF judges that the called subscriber is the service-user of video frequency color ring of having contracted, and triggers video color ring service to AS;
(2) when called subscriber's ring, AS requires the MRF function to play the CRBT that meets the current sessions Media Stream according to the result that QoS consults.
The present invention makes full use of IMS network support abundant multimedia information and network QoS is consulted ability, simultaneously service logic is further strengthened to multimedia video bell message breath is further abundant, realizes video class Ring Back Tone service more flexibly.When supporting video media stream for the calling subscriber, give its displaying video class medium, for example: Flash animation, video clipping, life segment etc., and when not supporting video media stream, give its coloring ring back tone playing, for example: music for the calling subscriber, advertisement or message etc., when the two failure is all failed, can not influence call proceeding yet, put single ring-back tone to the calling subscriber.
Description of drawings
Fig. 1 is a video frequency color ring system configuration in the IMS territory;
Fig. 2 is the MO call flow that AS participates in;
Fig. 3 is that video color ring service flow process-business is play successful situation;
Fig. 4 is that video color ring service flow process-business is play failure scenarios.
Embodiment
The present invention is directed to the characteristics of IMS network, further abundant to bell sound kind, the logic control to ring-back tone simultaneously also further strengthens, and embodies the characteristics of the CRBT that uses in the IMS territory: video color ring service.(wherein: the information interaction between MRFC and the MRFP is with reference to 104 explanations)
Concrete handling process can be referring to Fig. 3: video color ring service flow process-business is play successful situation:
301:UE sends INVITE and asks CSCF, and wherein SDP comprises the media capability that UE supports;
302:CSCF responds 100 Trying to the INVITE request of receiving;
303:CSCF (should be the S-CSCF functional module of system) carries out the initial filter standard or norm assessment according to user's business datum;
304:CSCF forwards AS to before INVITE is asked;
305:AS responds 100 Trying to the INVITE request of receiving;
306:AS carries out corresponding business to be triggered, and decides the position of next jumping;
Change the INVITE request before the 307:AS;
308:AS receives 100 Trying Temporary Responses to the INVITE request;
309:AS receives the response of 183 session progress, and wherein SDP comprises the Media Stream ability that destination is supported;
310:AS forwards CSCF to before with 183 session progress;
311:CSCF (should be the P-CSCF functional module of system) authorizes the QoS resource based on the local policy of operator;
Change 183 session progress before the 212:CSCF to UE;
313:UE decides the used Media Stream of this session according to the Media Stream ability received in 183 session progress, and the media stream packets that this is final is contained among the new SDP, sends to CSCF with the PRACK request;
314:UE is initiated as the required resource reservation process of this session according to the Media Stream characteristic that is determined;
315:CSCF forwards AS to before PRACK is asked;
Before continuing, changes 316:AS the PRACK request;
317:AS receives the 200 OKs response of destination to the PRACK request;
318:AS forwards CSCF to before 200 OK are responded;
319:CSCF forwards UE to before 200 OK are responded;
320: the resource reservation process of initiating as UE finishes, and UE sends the UPDATE request and notifies the other side;
321:CSCF forwards AS to before UPDATE is asked;
Before continuing, changes 322:AS the UPDATE request;
323:AS receives the 200 OKs response of destination to the UPDATE request;
324:AS forwards CSCF to before 200 OK are responded;
325:CSCF forwards UE to before 200 OK are responded;
326:AS receives the 180 Ringing response of opposite end;
327: video color ring service logic control process, decision is to calling subscriber's telecasting video frequency color ring;
328:AS initiates the INVITE request to MRFC, and wherein SDP carries the Media Stream that consults;
329:MRFC is to INVITE request response 100 Trying response;
330:MRFC passes through H.248 create telecasting video frequency color ring business reserved resource for UE alternately;
331:MRFC replys the INVITE request of AS, and loopback 200 OK response;
332:AS forwards CSCF to before 200 OK are responded;
333:CSCF (should be the P-CSCF functional module of system) ratifies the QoS that submits to;
334:CSCF forwards UE to before 200 OK are responded;
335:UE begins the Media Stream of this session, and the ACK request is responded in response to 200 OK;
336:CSCF forwards AS to before ACK is asked;
337:AS sends ACK and asks MRFC, wherein carries the professional bell sound type that decision is play according to the QoS negotiation result, also can adopt the INFO method of SIP request to carry the bell message breath that will play, the just nuance that realizes on the service logic;
338:MRFC passes through H.248 is UE telecasting video frequency color ring or common CRBT alternately;
339: when called party answer, AS receives the final 200 OKs response of destination to the INVITE request;
340:AS requires MRF to park video frequency color ring and discharge resource, sends the BYE request to MRFC;
341:MRFC is to BYE request response 200 OK;
342:MRFC passes through H.248 is mutual, stops telecasting video frequency color ring, and discharge corresponding resource;
343:AS initiates the reINVITE request to CSCF, carries called subscriber's media information;
Change reINVITE before the 344:CSCF and ask UE;
Request sends final response 200 OK to 345:UE to reINVITE;
Change 200 OK before the 346:CSCF to AS;
347:AS responds the ACK request for the 200 OK response of receiving;
348:CSCF forwards UE to before ACK is asked, and UE begins the Media Stream of this session according to the information of Media Stream among the reINVITE;
349:AS sends the ACK request to destination;
Playing failure procedures for business can be referring to Fig. 4: video color ring service flow process-business broadcast failure scenarios (only introduce the wherein content of different piece, other are omitted):
401-426: be omitted (referring to the flow process introduction of front)
427: video color ring service logic control process, decision is to calling subscriber's telecasting video frequency color ring;
428:AS initiates the INVITE request to MRFC, and wherein SDP carries the Media Stream that consults;
429:MRFC is to INVITE request response 100 Trying response;
430:MRFC responds wrong final response to INVITE;
431:AS responds the ACK request to final response;
The final response of the mistake that 432:AS business logic processing MRFC sends, and decision sends 180 Ringing response to the calling subscriber;
433-446: be omitted (referring to the flow process introduction of front)
Claims (5)
1. method that realizes video color ring service in the IMS territory comprises step:
(1) user is in the IMS initiation session, and CSCF judges that the called subscriber is the service-user of video frequency color ring of having contracted, and triggers video color ring service to AS;
(2) when called subscriber's ring, AS requires the MRF function to play the CRBT that meets the current sessions Media Stream according to the result that QoS consults.
2. the method for claim 1 is characterized in that also comprising step:
AS requires MRF to park video frequency color ring and discharge resource, sends the BYE request to MRFC;
MRFC stops telecasting video frequency color ring, and discharges corresponding resource by H.248 mutual.
3. the method for claim 1 is characterized in that also comprising step:
(3) when AS receives the response of MRF mistake, AS carries out logic determines, and the termination video color ring service carries out normal session and sets up process;
(4) during called subscriber answer session this time, AS order MRF stops the broadcast of video frequency color ring and discharges corresponding resource.
4. the method for claim 1 is characterized in that in the step 2, and medium stream information adopts the INFO method of SIP request to carry video frequency color ring information.
5. method as claimed in claim 3: it is characterized in that in the step 4 that during called subscriber answer, AS can initiate the normal conversation of foundation of reINVITE process and called end.
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| WO2009109135A1 (en) * | 2008-03-04 | 2009-09-11 | 华为技术有限公司 | A method and an apparatus for realizing characteristic ring back tone in multi-party session |
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| WO2010025649A1 (en) * | 2008-09-03 | 2010-03-11 | 华为技术有限公司 | Call and control method, apparatus and system for multimedia ring back tone service |
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