CN101083844B - Method and system for realizing non-voice circuit bypass multimedia color bell service in IMS network - Google Patents
Method and system for realizing non-voice circuit bypass multimedia color bell service in IMS network Download PDFInfo
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Abstract
The present invention provides realization method and systems of no circuitous speech path multimedia coloring ring in the IMS network, this method includes following steps. Step 1, when the caller terminal calls recipient terminal, the PSS server of the recipient terminal would trigger their calling process ; Step 2, If the PSS server judge that the recipient terminal is in the idle state, it could adopt Session Description Protocol to implement the media consultation treatment between the caller terminal and the media server, and reserve the resource in the caller terminals; steps 3: After the caller terminal successfully reserves the resource, it would implement the updating treatment of the media between the caller terminal and the recipient terminal and between the caller terminal and the media server, using the Session Description Protocol; steps 4, media server broadcast the multimedia coloring ring to the caller terminal. Thus, with the use of this invention, a lot of waste of multimedia coloring ring center resources could be avoided, and also the broadcasting of the multimedia coloring ring and the caller and recipient communication quality could also be ensured.
Description
Technical field
The present invention relates to the telecom communication industry field, more specifically, relate to a kind of method and system of realizing non-speech channel alternate multimedia color ring service in IP Multimedia System IMS (the IP Multimedia Subsystem) network of 3-G (Generation Three mobile communication system).
Background technology
In recent years, along with development of telecom technology, personalized telecommunications service are arisen at the historic moment.Coloring Ring Back Tone can provide the Customized Ring Back Tone of fashion as a kind of value-added service of personalization, has been subjected to liking of more and more users.When the called subscriber has registered Ring Back Tone service and customized Comfort Noise Generation (CNG) in advance, so when the calling user dials called subscriber, according to the broadcast strategy that the called subscriber is provided with, the calling subscriber can hear personalized Comfort Noise Generation (CNG), and no longer is dull common ring-back tone.But, at present the audio frequency CRBT on global system for mobile communications (GSM), code division multiple access system (CDMA) and fixed communications (PSTN) that occurs is based on and realizes then in the arrowband, and the bandwidth of narrow band transmission has only 64K at present, is difficult to realize the broadcast of multimedia color ring back tone.
Along with mobile communication from the evolution of 2G to 3G, not only adopted more advanced wideband CDMA technology at wireless system, aspect core network, also just change to packet switching from circuit switching.Trend based on Internet and communication network fusion, each standardization body has proposed the notion of next generation network, on the packet carrying network basis, introduced the IP Multimedia System (IMS) of all-IP business network framework, can present for the user provides state, colourful multimedia service such as instant message, video conference.The appearance of IMS network is for providing practicable basis to user's play multimedia CRBT.
Multimedia color ring back tone (MRBT, Multimedia Ring Back Tone) can play the multimedia messages that has individual character for the calling subscriber, the multimedia messages of playing can be voice data and/or video data, has the multimedia messages of individual character such as music, video and combination thereof etc.But Multimedia Ring Back Tone service is not the basic service of IMS, but how value-added service realizes having become the task of top priority to calling subscriber's play multimedia CRBT under the IMS network.
Summary of the invention
In order to solve problems of the prior art, the invention provides a kind of method and system of realizing non-speech channel alternate multimedia color ring service, so that in the IMS network, realize to calling subscriber's play multimedia CRBT.
One aspect of the present invention provides a kind of method that realizes non-speech channel alternate multimedia color ring service in the IMS network, it can may further comprise the steps: step 1, when calling terminal is called out terminal called, the PSS server triggers call flow under the terminal called; Step 2 when the PSS server judges that terminal called is in idle condition, adopts Session Description Protocol to carry out media negotiation between calling terminal and terminal called and calling terminal and media server and handles, and at the calling terminal reserved resource; Step 3 after the success of calling terminal reserved resource, adopts Session Description Protocol to carry out medium between calling terminal and terminal called and calling terminal and media server and upgrades processing; And step 4, after dialed terminal bell, media server is to calling terminal play multimedia CRBT.
Comprise following processing in the step 1: when calling terminal was called out terminal called, calling terminal sent setup requests information to the IMS network; PSS server in the IMS network under the inquiry terminal called; And setup requests information sent to the PSS server, thereby trigger call flow.
Comprise following processing in the step 2: the PSS server judges whether terminal called is in idle condition; If terminal called is in idle condition, then the PSS server determines whether terminal called has registered Multimedia Ring Back Tone service; If the registered Multimedia Ring Back Tone service of terminal called, then the PSS server is called out the multimedia color ring back tone center, begins to carry out media negotiation and triggers the called RBT service module, and wherein, the multimedia color ring back tone center comprises application server at least, and media server; The PSS server is called out terminal called, initiates the media negotiation between calling terminal and the terminal called; The called RBT service module is according to call information, and inquiry need play to the address of the multimedia color ring back tone of calling terminal; And the media negotiation between media server initiation and the calling terminal, the calling terminal reserved resource.
Wherein, the media negotiation between calling terminal and the terminal called is the Session media negotiation, and the media negotiation between calling terminal and the media server is an Early Session media negotiation.
In addition, the multimedia color ring back tone center comprises at least: application server and media server, and call information comprises: the broadcast strategy that the number of calling terminal, the number of terminal called, current date, current time and terminal called are set.
Comprise following processing in the step 3: after the success of calling terminal reserved resource, calling terminal is initiated medium and is upgraded operation, and the medium of finishing between calling terminal and the media server upgrade; And the medium of finishing between calling terminal and the terminal called upgrade,
Wherein, it is that Early Session medium upgrade that the medium between calling terminal and the media server upgrade, and the renewal of the medium between calling terminal and the terminal called is that the Session medium upgrade.
In addition, in step 4, comprise following processing: after dialed terminal bell, PSS server notification multimedia color ring back tone center play multimedia CRBT; The multimedia color ring back tone center transfers to calling terminal with multimedia color ring back tone; And calling terminal play multimedia CRBT.
This method also comprises: when terminal called was replied calling terminal, the play multimedia CRBT was finished at the multimedia color ring back tone center, and calling terminal and terminal called begin to converse.
Wherein, calling terminal and terminal called are the IP Multimedia System terminals in the 3-G (Generation Three mobile communication system), and the PSS server provides IP mediaphone business, comprise at least: basic service, supplementary service and IP centrex business.
Another aspect of the present invention provides a kind of system that realizes non-speech channel alternate multimedia color ring service in the IMS network, and it can comprise: calling device is used for triggering call flow when calling terminal is called out terminal called; The media negotiation device is used for when the PSS server judges that terminal called is in idle condition, and adopt Session Description Protocol between calling terminal and terminal called and calling terminal and media server, to carry out media negotiation and handle, and at the calling terminal reserved resource; The medium updating device is used for after the success of calling terminal reserved resource, adopts Session Description Protocol to carry out medium between calling terminal and terminal called and calling terminal and media server and upgrades processing; And playing device, be used for after dialed terminal bell, to calling terminal play multimedia CRBT.
Calling device comprises: sending module is used for sending setup requests information to the IMS network when calling terminal is called out terminal called; First enquiry module is used for the PSS server under IMS network inquiry terminal called; And trigger module, be used for setup requests information is sent to the PSS server, thereby trigger call flow.
The media negotiation device comprises: judge module is used to judge whether terminal called is in idle condition; Determination module is used for when terminal called is in idle condition, determines whether terminal called has registered Multimedia Ring Back Tone service; Consult to start module, be used for when the registered Multimedia Ring Back Tone service of terminal called, call out the multimedia color ring back tone center, begin to carry out media negotiation and trigger the called RBT service module, wherein, the multimedia color ring back tone center comprises application server at least, and media server; The calling and called negotiation module is used to call out terminal called, initiates the media negotiation between calling terminal and the terminal called; Second enquiry module is used for according to call information, and inquiry need play to the address of the multimedia color ring back tone of calling terminal; And media server and caller negotiation module, be used to finish the media negotiation between media server and the calling terminal, make the calling terminal reserved resource.
Wherein, the media negotiation between calling terminal and the terminal called is the Session media negotiation, and the media negotiation between calling terminal and the media server is an Early Session media negotiation.
In addition, the multimedia color ring back tone center comprises at least: application server and media server, and call information comprises: the broadcast strategy that the number of calling terminal, the number of terminal called, current date, current time and terminal called are set.
The medium updating device comprises: media server and caller update module, be used for after the success of calling terminal reserved resource, initiating medium and upgrading operation, and the medium of finishing between calling terminal and the media server upgrade; And the calling and called update module, the medium that are used to finish between calling terminal and the terminal called upgrade,
It is that Early Session medium upgrade that medium between calling terminal and the media server upgrade, and the renewal of the medium between calling terminal and the terminal called is that the Session medium upgrade.
Playing device comprises: notification module is used for after dialed terminal bell notice multimedia color ring back tone center play multimedia CRBT; And transmission and playing module, be used for multimedia color ring back tone is transferred to calling terminal, and the play multimedia CRBT.
This system also comprises: communicator, be used for when terminal called is replied calling terminal, and finish the play multimedia CRBT, calling terminal and terminal called are conversed.
Wherein, calling terminal and terminal called are the IP Multimedia System terminals in the 3-G (Generation Three mobile communication system), and the PSS server provides IP mediaphone business, comprise at least: basic service, supplementary service and IP centrex business.
Thereby, adopt method and system of the present invention, avoided the multimedia color ring back tone center not only to be responsible for polyphonic ringtone playing but also be responsible for call establishment and remove the alternative channel defective that exists under this mode, can stop a large amount of wastes of multimedia color ring back tone center resources, support by to Early Session and Precondition expansion has guaranteed multimedia color ring back tone broadcast and calling and called calling quality.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the method for realization non-speech channel alternate multimedia color ring service of the present invention;
Fig. 2 is the system group network structural representation of using among the present invention;
Fig. 3 is the flow chart to calling terminal audio plays or video according to the embodiment of the invention; And
Fig. 4 is the block diagram according to the system of realization non-speech channel alternate multimedia color ring service of the present invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Fig. 1 is the flow chart according to the method for realization non-speech channel alternate multimedia color ring service of the present invention.As shown in Figure 1, this method may further comprise the steps:
Step S102, when calling terminal is called out terminal called, the PSS server triggers call flow under the terminal called;
Step S104 when the PSS server judges that terminal called is in idle condition, adopts Session Description Protocol to carry out media negotiation between calling terminal and terminal called and calling terminal and media server and handles, and at the calling terminal reserved resource;
Step S106 after the success of calling terminal reserved resource, adopts Session Description Protocol to carry out medium between calling terminal and terminal called and calling terminal and media server and upgrades processing; And
Step S108, after dialed terminal bell, media server is to calling terminal play multimedia CRBT.
Comprise following processing among the step S102: when calling terminal was called out terminal called, calling terminal sent setup requests information to the IMS network; PSS server in the IMS network under the inquiry terminal called; And setup requests information sent to the PSS server, thereby trigger call flow.
Comprise following processing among the step S104: the PSS server judges whether terminal called is in idle condition; If terminal called is in idle condition, then the PSS server determines whether terminal called has registered Multimedia Ring Back Tone service; If the registered Multimedia Ring Back Tone service of terminal called, then the PSS server is called out the multimedia color ring back tone center, begins to carry out media negotiation and triggers the called RBT service module; The PSS server is called out terminal called, initiates the media negotiation between calling terminal and the terminal called; The called RBT service module is according to call information, and inquiry need play to the address of the multimedia color ring back tone of calling terminal; And the media negotiation between media server initiation and the calling terminal, the calling terminal reserved resource.
Wherein, the media negotiation between calling terminal and the terminal called is the Session media negotiation, and the media negotiation between calling terminal and the media server is an Early Session media negotiation.
In addition, the multimedia color ring back tone center comprises at least: application server and media server, and call information comprises: the broadcast strategy that the number of calling terminal, the number of terminal called, current date, current time and terminal called are set.
Comprise following processing among the step S106: after the calling terminal reserved resource, calling terminal is initiated medium and is upgraded operation, and the medium of finishing between calling terminal and the media server upgrade; And the medium of finishing between calling terminal and the terminal called upgrade.
Wherein, it is that Early Session medium upgrade that the medium between calling terminal and the media server upgrade, and the renewal of the medium between calling terminal and the terminal called is that the Session medium upgrade.
In addition, in step S108, comprise following processing: after dialed terminal bell, PSS server notification multimedia color ring back tone center play multimedia CRBT; The multimedia color ring back tone center transfers to calling terminal with multimedia color ring back tone; And calling terminal play multimedia CRBT.
This method also comprises: when terminal called was replied calling terminal, the play multimedia CRBT was finished at the multimedia color ring back tone center, and calling terminal and terminal called begin to converse.
Wherein, calling terminal and terminal called are the IP Multimedia System terminals in the 3-G (Generation Three mobile communication system), and the PSS server provides IP mediaphone business, comprising: basic service, supplementary service and IP centrex business etc.
Fig. 2 is the system group network structural representation of using among the present invention.Equipment related to the present invention comprises: calling terminal, IMS core network (containing call/session controlled function (CSCF), home subscriber server (HSS), PSTN/ISDN analog service (PSS)), multimedia color ring back tone center (containing application server (AS), media server (MS) etc.), terminal called.Wherein, described calling terminal and terminal called are software terminal Soft Phone in the present embodiment, support session initiation protocol (SIP); Described application server is carried out the called RBT service module, and uses Session Initiation Protocol mutual with IMS core network and media server; Described media server stores audio and video medium uses Session Initiation Protocol and AS mutual, uses RTP (RTP) bag to terminal transmission audio or video data.In addition, the PSS server is in the present embodiment corresponding to the PSS of Fig. 2, and the HSS server is corresponding to the HSS of Fig. 2.
As shown in Figure 2, listed the capital equipment that the present invention is correlated with,, supposed that calling subscriber and called subscriber belong to same HSS, S-CSCF and PSS in order to simplify description.As shown in the figure, comprise with the lower part: software terminal Soft Phone, proxy CSCF (P-CSCF), Interrogating CSCF (I-CSCF), serving CSCF (S-CSCF), home subscriber server HSS, PSTN/ISDN analog service PSS, application server AS, media server MS.
On communication connects, link to each other by the TCP/IP network between each network element, adopt Session Initiation Protocol to carry out alternately between Soft Phone and the P-CSCF, adopt Session Initiation Protocol to carry out alternately between three network elements of P-CSCF, I-CSCF and S-CSCF, adopt Diameter to carry out alternately between two network elements of I-CSCF, S-CSCF and the HSS, adopt Session Initiation Protocol to carry out alternately between two network elements of S-CSCF, AS and the PSS, adopt Session Initiation Protocol to carry out alternately between AS and the MS, adopt Real-time Transport Protocol transmission of audio or video information between MS and the calling terminal.
Call/session controlled function CSCF has three types: proxy CSCF (P-CSCF), Interrogating CSCF (I-CSCF), serving CSCF (S-CSCF) are most important function entities in the IMS core network.The PSS server provides IP mediaphone business such as basic service, supplementary service, IP centrex business in the IMS network.
The called RBT service module is loaded and is operated on the described application server AS, and the core as called RBT service is realized is achieved as follows function:
According to the broadcast strategy that calling number, quilt number, current date, current time and called subscriber set, inquire the address of the multimedia color ring back tone that this calling need play to caller;
Control is mutual with calling and called terminal subsequent message;
Media negotiation between control media server and the calling terminal; And
The control media server to the beginning of calling terminal playing media with stop.
Call establishment and the PSS server controls of removing by the IMS core network, make call out, control, carrying is disconnected from each other, the speech channel of calling and called does not need process multimedia color ring back tone center to carry out bridge joint like this, promptly at non-speech channel alternate between the calling and called under this kind scheme.After calling and called enter talking state, signaling link between multimedia color ring back tone center and the PSS server is removed along with the end of multimedia color ring back tone broadcast, the Signalling exchange that calling both sides takes place is no longer relevant with the multimedia color ring back tone center, directly control by the PSS server, the multimedia color ring back tone center needn't be again for handling and transmit these signaling waste resources, the session data district that needn't keep again calling out is up to end of conversation, stop a large amount of wastes of resources such as multimedia color ring back tone center C PU and internal memory, also shortened the delivery lag of these signalings simultaneously.
Fig. 3 is the flow chart to calling terminal audio plays or video according to the embodiment of the invention, wherein, for effect and the calling and called calling quality that guarantees mind-set caller coloring ring back tone playing in the multimedia color ring back tone, need IMS core network and calling and called terminal to support Precondition (preliminary treatment) and Early Session (session early) expansion simultaneously, Fig. 3 is described in detail below with reference to Fig. 2.As shown in Figure 3, specifically may further comprise the steps:
Step S301, caller is dialed called, caller makes a call to set up to the IMS core network and asks, inquire called affiliated PSS at the IMS core network, trigger called flow so call setup request message is sent to the PSS network element of IMS core network, carry Session medium SDP A1 in this call setup request message;
Step S302, PSS called flow judge whether called out called is idle condition, if called for idle condition then PSS setup requests that caller is initiated send to terminal called;
Step S303, terminal called is after receiving call setup request message, send the call progress response message to PSS, carry Early Session medium SDP B1 and Session medium SDP B2 in this message, SDP B2 is the media capability after calling terminal medium SDP A1 is consulted;
After step S304, PSS received the call progress message of terminal called, notice multimedia color ring back tone center MRBT prepared resource, made a call to set up to MRBT and asked, and carried Session medium SDP AS1 in this request message, and the medium type of AS1 is with reference to SDP A1;
Step S305, the broadcast strategy that MRBT sets according to calling number, quilt number, current date, current time and called subscriber, inquire the address of the multimedia color ring back tone that this calling need play to caller, send the call progress response message to PSS then, because the media server among the MRBT will be to calling terminal play multimedia CRBT, MRBT carries Early Session medium in this message be media server SDP mrbt2, Session medium SDP mrbt1;
Step S306, PSS sends call progress message to calling terminal, carry Early Session medium in this message and be SDP mrbt2 from media server among the MRBT, the Session medium have so far been finished the negotiation of Session medium between calling terminal and the terminal called for the medium SDP B2 of calling and called terminal media after consulting;
Step S307, calling terminal sends the call progress acknowledgement message to PSS, carry Early Session medium SDP A2 in this message, SDP A2 is that calling terminal begins reserved resource simultaneously to the media capability after the medium SDP mrbt2 negotiation of media server among the MRBT;
Step S308, PSS sends to MRBT with the calling sent by calling terminal Progress message, has so far finished the negotiation of Early Session medium between the media server among calling terminal and the MRBT;
Step S309, PSS send call progress message to terminal called, carry Early Session medium SDP AS1 ' in this message, and these medium are set is that inactive makes it inoperative;
Step S310, after the success of calling terminal resource reservation, calling terminal is initiated medium and is upgraded operation, carries Early Session medium SDP A2 ' and Session medium SDP A1 ' in this message;
Step S311, PSS initiate medium to MRBT and upgrade operation, carry Early Session medium SDP A2 ' and Session medium SDP AS1 in this message ", and the Session medium are set is that inactive makes it inoperative;
Step S312, MRBT send medium to PSS and upgrade the affirmation response, carry Early Session medium SDP mrbt2 ' and Session medium SDP mrbt1 ' in this message, and SDP mrbt2 ' is the media capability after SDP A2 ' is consulted;
Step S313, PSS initiate medium to terminal called and upgrade operation, carry Early Session medium SDP AS1 ' in this message " and Session medium SDP A1 ', and Early Session medium are set is that inactive makes it inoperative;
Step S314, terminal called send medium to PSS and upgrade the affirmation response, carry Early Session medium SDP B1 ' and Session medium SDP B2 ' in this message, and SDP B2 ' is the media capability after SDPA1 ' is consulted;
Step S315, PSS sends medium to calling terminal and upgrades the affirmation response, carry Early Session medium SDP mrbt2 ' and Session medium SDP B2 ' in this message, so far the medium between resource reservation success back calling terminal and media server, the terminal called upgrade to be finished, media server can be conversed with Session medium SDPB2 ' type between the calling and called terminal with Early Session medium SDP mrbt2 ' type to calling terminal play multimedia CRBT;
Step S316, called terminal ringing, terminal called sends ring up message to PSS;
Step S317, PSS sends playing request to MRBT, and notice multimedia color ring back tone center begins the play multimedia CRBT;
Step S318, PSS sends ring up message to calling terminal, and so far the media server among the MRBT begins to play the multimedia color ring back tone that inquires among the step S305 to calling terminal;
Step S319, called off-hook is replied, and terminal called sends call answering message to PSS;
Step S320, PSS send to MRBT and play ending request, and the broadcast of this multimedia color ring back tone is finished at notice multimedia color ring back tone center; And
Step S321, PSS sends call answering message to calling terminal, so far begins conversation between the calling and called.
Wherein, the media negotiation of Early Session between calling terminal and the media server is initiated by media server, the media negotiation of Session between described calling terminal and the terminal called is initiated by calling terminal, described medium upgrade is initiated by calling terminal, described media negotiation and medium upgrade and adopt SDP (Session Description Protocol, Session Description Protocol) agreement to carry out.Wherein, described calling subscriber and called subscriber are the IMS users of 3-G (Generation Three mobile communication system), on the HSS of IMS core network, distribute telephone numbers, called subscriber's PSS service template of having contracted on HSS, the called subscriber has registered Ring Back Tone service and has opened called RBT service at the multimedia color ring back tone center on PSS simultaneously.
Fig. 4 is the block diagram according to the system 400 of realization non-speech channel alternate multimedia color ring service of the present invention.As shown in Figure 4, this system comprises: calling device 402 is used for triggering call flow when calling terminal is called out terminal called; Media negotiation device 404, be used for when the PSS server judges that terminal called is in idle condition, adopt Session Description Protocol between calling terminal and terminal called and calling terminal and media server, to carry out media negotiation and handle, and at the calling terminal reserved resource; Medium updating device 406 is used for after the success of calling terminal reserved resource, adopts Session Description Protocol to carry out medium between calling terminal and terminal called and calling terminal and media server and upgrades processing; And playing device 408, being used for after dialed terminal bell, media server is to calling terminal play multimedia CRBT.
Calling device 402 comprises: sending module is used for sending setup requests information to the IMS network when calling terminal is called out terminal called; First enquiry module is used for the PSS server under IMS network inquiry terminal called; And trigger module, setup requests information is sent to the PSS server, thereby trigger call flow.
Media negotiation device 404 comprises: judge module is used to judge whether terminal called is in idle condition; Determination module is used for when terminal called is in idle condition, determines whether terminal called has registered Multimedia Ring Back Tone service; Consult to start module, be used for when the registered Multimedia Ring Back Tone service of terminal called, call out the multimedia color ring back tone center, begin to carry out media negotiation and trigger the called RBT service module; The calling and called negotiation module is used to call out terminal called, initiates the media negotiation between calling terminal and the terminal called; Second enquiry module is used for according to call information, and inquiry need play to the address of the multimedia color ring back tone of calling terminal; And media server and caller negotiation module, be used to finish the media negotiation between media server and the calling terminal, make the calling terminal reserved resource.
Wherein, the media negotiation between calling terminal and the terminal called is the Session media negotiation, and the media negotiation between calling terminal and the media server is an Early Session media negotiation.
In addition, the multimedia color ring back tone center comprises at least: application server and media server, and call information comprises: the broadcast strategy that the number of calling terminal, the number of terminal called, current date, current time and terminal called are set.
Medium updating device 406 comprises: media server and caller update module, be used for after the success of calling terminal reserved resource, initiating medium and upgrading operation, and the medium of finishing between calling terminal and the media server upgrade; And the calling and called update module, the medium that are used to finish between calling terminal and the terminal called upgrade.
It is that Early Session medium upgrade that medium between calling terminal and the media server upgrade, and the renewal of the medium between calling terminal and the terminal called is that the Session medium upgrade.
Playing device 408 comprises: notification module is used for after dialed terminal bell notice multimedia color ring back tone center play multimedia CRBT; And transmission and playing module, be used for multimedia color ring back tone is transferred to calling terminal, and the play multimedia CRBT.
This system also comprises: communicator, be used for when terminal called is replied calling terminal, and finish the play multimedia CRBT, calling terminal and terminal called begin to converse.
Wherein, calling terminal and terminal called are the IP Multimedia System terminals in the 3-G (Generation Three mobile communication system), and the PSS server provides IP mediaphone business, comprising: basic service, supplementary service and IP centrex business etc.
In sum, the present invention makes a call to called and multimedia color ring back tone center respectively by the PSS server of IMS core network, be responsible for to caller play multimedia CRBT at the multimedia color ring back tone center, the PSS server is responsible for call establishment and dismounting, avoided the multimedia color ring back tone center not only to be responsible for polyphonic ringtone playing but also be responsible for call establishment and remove the alternative channel defective that exists under this mode, can stop a large amount of wastes of multimedia color ring back tone center resources, support by to EarlySession and Precondition expansion has guaranteed multimedia color ring back tone broadcast and calling and called calling quality.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a method that realizes non-speech channel alternate multimedia color ring service in the IMS network is characterized in that, may further comprise the steps:
Step 1, when calling terminal is called out terminal called, the PSS server triggers call flow under the described terminal called;
Step 2, when described PSS server judges that described terminal called is in idle condition, adopt Session Description Protocol between described calling terminal and described terminal called and described calling terminal and media server, to carry out media negotiation and handle, and at described calling terminal reserved resource;
Step 3 after described calling terminal is reserved described resource success, adopts described Session Description Protocol to carry out medium between described calling terminal and described terminal called and described calling terminal and described media server and upgrades processing; And
Step 4, after described dialed terminal bell, described media server is to described calling terminal play multimedia CRBT.
2. method according to claim 1 is characterized in that, comprises following processing in the described step 1:
When described calling terminal was called out described terminal called, described calling terminal sent setup requests information to the IMS network;
Described PSS server in described IMS network under the described terminal called of inquiry; And
Described setup requests information is sent to described PSS server, thereby trigger described call flow.
3. method according to claim 2 is characterized in that, comprises following processing in the described step 2:
Described PSS server judges whether described terminal called is in described idle condition;
If described terminal called is in described idle condition, then described PSS server determines whether described terminal called has registered described Multimedia Ring Back Tone service;
If the registered described Multimedia Ring Back Tone service of described terminal called, then described PSS server is called out the multimedia color ring back tone center, begins to carry out media negotiation and triggers the called RBT service module, wherein, described multimedia color ring back tone center comprises application server and described media server at least;
Described PSS server is called out described terminal called, initiates the media negotiation between described calling terminal and the described terminal called;
Described called RBT service module is according to call information, and inquiry need play to the address of the multimedia color ring back tone of described calling terminal, and described called RBT service module is loaded and operated on the described application server; Described call information comprises: the broadcast strategy that the number of calling terminal, the number of terminal called, current date, current time and terminal called are set; And
Media negotiation between described media server initiation and the described calling terminal, described calling terminal reserved resource,
Wherein, the described media negotiation between described calling terminal and the described terminal called is the Session media negotiation, and
Described media negotiation between described calling terminal and the described media server is an Early Session media negotiation.
4. method according to claim 3 is characterized in that, comprises following processing in the described step 3:
After described calling terminal was reserved described resource success, described calling terminal was initiated medium and is upgraded operation, and the medium of finishing between described calling terminal and the described media server upgrade; And
The medium of finishing between described calling terminal and the described terminal called upgrade,
Wherein, it is that Early Session medium upgrade that the described medium between described calling terminal and the described media server upgrade, and
It is that the Session medium upgrade that described medium between described calling terminal and the described terminal called upgrade.
5. method according to claim 3 is characterized in that, comprises following processing in the described step 4:
After described dialed terminal bell, described multimedia color ring back tone is play at described PSS server notification multimedia color ring back tone center;
Described multimedia color ring back tone center transfers to described calling terminal with described multimedia color ring back tone; And
Described calling terminal is play described multimedia color ring back tone.
6. method according to claim 5 is characterized in that, also comprises:
When described terminal called was replied described calling terminal, described multimedia color ring back tone center finished to play described multimedia color ring back tone, and described calling terminal and described terminal called begin to converse.
7. method according to claim 1 is characterized in that, described calling terminal and described terminal called are the IP Multimedia System terminals in the 3-G (Generation Three mobile communication system), and
Described PSS server provides IP mediaphone business, comprises at least: basic service, supplementary service and IP centrex business.
8. a system that realizes non-speech channel alternate multimedia color ring service in the IMS network is characterized in that, comprises PSS server, calling terminal, terminal called, media server, wherein:
When calling terminal is called out terminal called, the PSS server triggers call flow under the described terminal called;
When described PSS server judges that described terminal called is in idle condition, adopt Session Description Protocol between described calling terminal and described terminal called and described calling terminal and media server, to carry out media negotiation and handle, and at described calling terminal reserved resource;
After described calling terminal is reserved described resource success, adopt described Session Description Protocol between described calling terminal and described terminal called and described calling terminal and described media server, to carry out medium and upgrade processing; And
After described dialed terminal bell, described media server is to described calling terminal play multimedia CRBT.
9. system according to claim 8 is characterized in that, when described calling terminal was called out described terminal called, described calling terminal sent setup requests information to the IMS network;
Described PSS server in described IMS network under the described terminal called of inquiry; And
Described setup requests information is sent to described PSS server, thereby trigger described call flow.
10. system according to claim 9 is characterized in that, also comprises multimedia color ring back tone center, called RBT service module and application server:
Described PSS server judges whether described terminal called is in described idle condition;
When described terminal called was in described idle condition, described PSS server determined whether described terminal called has registered described Multimedia Ring Back Tone service;
When the registered described Multimedia Ring Back Tone service of described terminal called, described PSS server is called out the multimedia color ring back tone center, begins to carry out media negotiation and triggers the called RBT service module, wherein, described multimedia color ring back tone center comprises application server and described media server at least;
Described PSS server is called out described terminal called, initiates the media negotiation between described calling terminal and the described terminal called;
Described called RBT service module is according to call information, and inquiry need play to the address of the multimedia color ring back tone of described calling terminal, and described called RBT service module is loaded and operated on the described application server; Described call information comprises: the broadcast strategy that the number of calling terminal, the number of terminal called, current date, current time and terminal called are set; And
Described media server is finished the media negotiation between described media server and the described calling terminal, makes described calling terminal reserved resource,
Wherein, the described media negotiation between described calling terminal and the described terminal called is the Session media negotiation, and
Described media negotiation between described calling terminal and the described media server is an Early Session media negotiation.
11. system according to claim 10 is characterized in that, after described calling terminal was reserved described resource success, described calling terminal was initiated medium and is upgraded operation, and the medium of finishing between described calling terminal and the described media server upgrade; And
The medium of finishing between described calling terminal and the described terminal called upgrade,
Wherein, it is that Early Session medium upgrade that the described medium between described calling terminal and the described media server upgrade, and
It is that the Session medium upgrade that described medium between described calling terminal and the described terminal called upgrade.
12. system according to claim 11 is characterized in that, after described dialed terminal bell, described multimedia color ring back tone is play at the described multimedia color ring back tone of described PSS server notification center; And
Described multimedia color ring back tone center transfers to described calling terminal with described multimedia color ring back tone; And
Described calling terminal is play described multimedia color ring back tone.
13. system according to claim 12 is characterized in that, also comprises:
When described terminal called was replied described calling terminal, described multimedia color ring back tone center finished to play described multimedia color ring back tone, and described calling terminal and described terminal called begin to converse.
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| CN2007101303815A CN101083844B (en) | 2007-07-18 | 2007-07-18 | Method and system for realizing non-voice circuit bypass multimedia color bell service in IMS network |
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| CN101287165B (en) * | 2008-06-11 | 2011-11-30 | 中兴通讯股份有限公司 | Implementing method for multimedia color ring back tone service |
| CN101702710A (en) * | 2009-11-03 | 2010-05-05 | 中兴通讯股份有限公司 | Control method of multimedia color ring back tone service in multimedia subsystem domain and system |
| CN102082766B (en) * | 2009-12-01 | 2014-07-02 | 中兴通讯股份有限公司 | User equipment (UE) access method and device in IP (internet protocol) multimedia subsystem (IMS) |
| CN102111386B (en) * | 2009-12-25 | 2014-03-26 | 华为技术有限公司 | Early media implementation method and device |
| CN110324874B (en) * | 2018-03-29 | 2020-10-23 | 华为技术有限公司 | Method, device and storage medium for processing media session |
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