CN102457481A - System and method for realizing unified number service between IMS user and soft switch user - Google Patents
System and method for realizing unified number service between IMS user and soft switch user Download PDFInfo
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- CN102457481A CN102457481A CN2010105157186A CN201010515718A CN102457481A CN 102457481 A CN102457481 A CN 102457481A CN 2010105157186 A CN2010105157186 A CN 2010105157186A CN 201010515718 A CN201010515718 A CN 201010515718A CN 102457481 A CN102457481 A CN 102457481A
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Abstract
The invention discloses a system and a method for realizing a unified number service between an IP multimendia subsystem (IMS) user and a soft switch (SS) user. The method comprises the following steps that: a same number is used to respectively store signing service information in a home subscriber server (HSS) and a smart home location register (SHLR); when a user plays roles as a calling party and a video called party to carry out calling, there is no need to use a unified number service platform; and when the user plays a role as a voice called party, the calling is firstly routed to the unified number service platform in an IMS network to carry out service triggering. According to the invention, when a user plays roles as a calling party and a video called party to carry out calling, there is no need to use a unified number service platform; and when the user plays a role as a voice called party, the calling is firstly routed to the unified number service platform in an IMS network to carry out service triggering; meanwhile, functions of a calling unified number service and a called unified number service are supported; therefore, a function that one number is shared between terminals of different types of two networks can be realized; and it is realized that a same number is displayed during the calling out process of service terminals, synchronized vibration of a multimedia terminal and a telephone terminal during the calling in process is carried out and only the multimedia terminal rings during the video calling in process.
Description
Technical field
The present invention relates to IMS (IP Multimedia System, IP Multimendia Subsystem) and soft switch communication application, relate in particular to the method and system of single number service between a kind of IMS of realization user and the soft switching users.
Background technology
Along with the introducing of IMS network, provide the multimedia service that has merged multiple media formats such as voice, video, picture to become possibility to the user, carry and show that to the user the novel multimedia terminal of multimedia service becomes the choosing that the user uses professional certainty.But owing to the popularization of landline telephone, the convenience and the habituation of use, existing landline telephone also will be continued to keep in the users home.Therefore, the user hopes that the IMS multimedia terminal can effectively merge with existing fixed line, thereby has proposed the single number service demand of enhancement mode.
Single number service is meant corresponding two physical terminals of a logical number, and breathing out shows the jack per line number, two terminals ring simultaneously during incoming call.IMS user and soft switching users strengthen the shared number of fixed phone terminal that single number service is meant IMS network multimedia terminal and fixed network network, and this number is a fixed telephone number, relates to caller jack per line and called jack per line.The caller jack per line is meant that two terminals initiatively dial, during to outcall, externally all show the jack per line number; Called jack per line is meant when other people call out this number, if be the voice incoming call, and two all rings of terminal; When any terminal is connected, will get into the normal talking state, the another one terminal stops ring; If call out to the video incoming call, have only the ring of IMS multimedia terminal.
At present; Existing single number service only limits between two fixed phone terminals, fixed phone terminal and PHS (personal handyphone system; Personal Handphone System) between the terminal, between C net and the fixed phone terminal, and single number service between multimedia terminal and the fixed phone terminal and relevant art scheme are not implemented as yet.
In sum, how effectively to utilize conventional network resources, realize that single number service becomes the technical problem that this area needs to be resolved hurrily between IMS network multimedia terminal user and the fixed network soft switching users.
Summary of the invention
The technical problem that the present invention will solve provides the system and method for single number service between a kind of IMS of realization user and the soft switching users; Through service logic being provided at IMS network design single number service platform AS; Before the fixed network network design has, inserted the business platform of network No. function, and realized single number service in the mode that home subscriber server HSS and Smart Home Location Register SHLR carry out service contracting respectively with identical number.
One aspect of the present invention provides the system of single number service between a kind of IMS of realization user and the soft switching users; This system comprises: call session control CSCF module; Be used for obtaining the trigger message of single number service, to trigger single number service through inquiry home subscriber server HSS; Single number service platform AS, the service logic that is used to carry out the multimedia terminal single number service is to satisfy the functional requirement of single number service; Home subscriber server HSS is used to preserve the user profile of multimedia terminal and the trigger message of single number service; The gateway control function module is used for IMS network and fixed network soft switch, or carries out the selection of MGCF during with the C net interconnecting; Border access controller BAC, as the agent equipment of CSCF and the media agent device of multimedia terminal, realization signaling flow and Media Stream pass through function and IP address transition; Before inserted the network No. business platform, inserted the network No. function before being used for realizing, so as SS with call proceeding to the IMS network; Soft switch SS, what be used to realize to call out continues and service trigger; When the user when called, receive and call out back inquiry Smart Home Location Register SHLR, and return service access code according to SHLR and route the call to the IMS network, to realize single number service; Smart Home Location Register SHLR is used to store and inserted the professional information of network No. before the fixed network user contracts.
Among the embodiment of the system of single number service, CSCF further comprises between realization IMS user provided by the invention and the soft switching users: P-CSCF, be used for the Ingress node that the IMS network is inserted in the multimedia terminal, and be responsible for the agency of signaling and message; I-CSCF is used for being responsible for assignment and the inquiry that the user registers S-CSCF; S-CSCF is used to provide the registration service, session control of multimedia terminal, relevant routing and service trigger function, and the maintain sessions state information.
Among the embodiment of the system of single number service, the service trigger function comprises according to receiving the different of message and medium type, triggers the single number service logic between realization IMS user provided by the invention and the soft switching users; For single number service, needing according to coming call type to differentiate calling is audio call or video call, thereby video call is taked the processing mode different with audio call; For the voice incoming call, S-CSCF triggers the single number service logic according to iFC, and for the video incoming call, S-CSCF directly routes the call to the multimedia terminal.
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the system of single number service; S-CSCF routes the call to MGCF MGCF module to get into fixed network according to crossing network No., and soft switch SS can route the call to the MGCF module to get into the IMS network according to crossing network No..
Among the embodiment of the system of single number service, single number service platform AS is further used between realization IMS user provided by the invention and the soft switching users: according to the Service Trigger Information that INVITE Route header field carries, carry out correspondent service logic; If called voice single number service, the single number service platform issues two INVITE; Wherein, an INVITE called number remains unchanged, and another INVITE called number was network No.+telephone number, and adds access code Access Code, sends back to S-CSCF again.
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the system of single number service; The gateway control function module further comprises: Breakout Gateway Control Function BGCF module is used for IMS network and fixed network soft switch, or carries out the selection of WMG during with the C net interconnecting; MGCF MGCF module is used to provide IMS network and fixed network soft switch, the signaling control when perhaps netting the intercommunication of CS territory with C; IMS medium gateway function IM-MGW module is used to provide IMS network and fixed network soft switch, the medium conversion facilities when perhaps netting the intercommunication of CS territory with C.
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the system of single number service; Single number service platform AS is that single number service is provided with initial filter standard or norm iFC; According to the difference of incoming call medium type, to the video incoming call with voice incoming call take different processing; For the video incoming call, the multimedia terminal of directly continuing; And, then trigger single number service according to iFC for the voice incoming call.
Another aspect of the present invention provides the method for single number service between a kind of IMS of realization user and the soft switching users, uses aforementioned any one system to realize single number service between IMS user and the soft switching users; This method comprises: in home subscriber server HSS and Smart Home Location Register SHLR, store signing service information with identical number respectively; When the user calls out when called as caller and video, need not pass through single number service platform AS; The user is when speech called, and the single number service platform AS that routes the call to earlier in the IMS network carries out service trigger.
Among the embodiment of the method for single number service, this method also comprises between realization IMS user provided by the invention and the soft switching users: realize professional triggering and execution jointly by the single number service platform AS of IMS network and the preceding network No. business platform of inserting of flexible exchanging network; To incoming call, directly trigger through IMS service control ISC by the S-CSCF in the call session control CSCF module from the IMS network; To incoming call from flexible exchanging network, then before inserted network No., be routed to the IMS network, carry out ISC again and trigger.
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the method for single number service; The preceding network No. business platform of in flexible exchanging network, disposing of inserting, the preceding network No. business platform of inserting routes the call to the IMS network to realize the triggering of single number service.
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the method for single number service; This method also comprises: in the IMS network, for single number service initial filter standard or norm iFC is set; According to the difference of incoming call medium type, to the video incoming call with voice incoming call take different processing; For the video incoming call, the multimedia terminal of directly continuing; And, then trigger single number service platform AS according to iFC for the voice incoming call.
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the method for single number service; This method also comprises: when processed voice incoming call single number service; Single number service platform AS issues two-way and calls out, and wherein, an INVITE called number remains unchanged; Another INVITE called number was network No.+number, and added power Access Code, all sent back to S-CSCF then.
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the method for single number service; This method also comprises: in the INVITE of the Session Initiation Protocol of IMS network, introduce Access Code header field, single number service platform AS inserted the professional access code of network No. before with soft switch and inserted Access Code header field; According to the Access Code header field that inserts access code, it is professional to insert network No. before will no longer triggering during soft switch inquiry SHLR.
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the method for single number service; This method also comprises: S-CSCF routes the call to MGCF MGCF module to get into fixed network according to crossing network No., and soft switch SS can route the call to the MGCF module to get into the IMS network according to crossing network No..
The system and method for single number service can be disposed single number service easily between realization IMS user that the present invention supplies and the soft switching users, supports caller single number service and called single number service function simultaneously; In addition; Through inserting INVITE with inserting the professional access code of network No. before the soft switch; When SHLR inquiry business information is delivered in the calling of before local soft switch will have, inserting the network No. service access code, SHLR will trigger follow-up business, thereby avoid this business repeated trigger.
Description of drawings
Fig. 1 illustrates the structural representation of the system of single number service between a kind of IMS of realization user that the embodiment of the invention provides and the soft switching users;
Fig. 2 illustrates the structural representation of an embodiment of the system of single number service between realization IMS user provided by the invention and the soft switching users;
Fig. 3 illustrates the flow chart of the method for single number service between a kind of IMS of realization user that the embodiment of the invention provides and the soft switching users;
Fig. 4 illustrates the flow chart of another embodiment of the method for single number service between realization IMS user provided by the invention and the soft switching users;
Fig. 5 illustrates the flow chart of another embodiment of the method for single number service between realization IMS user provided by the invention and the soft switching users;
Fig. 6 illustrates the flow chart of another embodiment of the method for single number service between realization IMS user provided by the invention and the soft switching users.
Embodiment
With reference to the accompanying drawings the present invention is more comprehensively described, exemplary embodiment of the present invention wherein is described.
Fig. 1 illustrates the structural representation of the system of single number service between a kind of IMS of realization user that the embodiment of the invention provides and the soft switching users.
As shown in Figure 1; The system 100 that realizes single number service between IMS user and the soft switching users comprises call session control (CSCF; Call Session Control Function) module 102, single number service platform AS (application server, Application Server) 104, home subscriber server (HSS, Home Subscriber Server) 106, gateway control function are selected module 108, border access controller (BAC; Border Access Controller) 110 preceding network No. business platform 112, the soft switch (SS of inserting; Soft Switch) 114 and Smart Home Location Register (SHLR, Smart Home Location Register) 116, wherein
Call session controller 102 is used for the trigger message through inquiry home subscriber server HSS acquisition single number service, to trigger single number service.
Single number service platform 104, the service logic that is used to carry out the multimedia terminal single number service is to satisfy the functional requirement of single number service.
Home subscriber server 106 is used to preserve the user profile of multimedia terminal and the trigger message of single number service.
Gateway control function module 108 is used for IMS network and fixed network soft switch, or carries out the selection of MGCF during with the C net interconnecting.
Border access controller 110, as the agent equipment of CSCF and the media agent device of multimedia terminal, realization signaling flow and Media Stream pass through function and IP address transition.
Before inserted network No. business platform 112, inserted the network No. function before being used for realizing, so as SS with call proceeding to the IMS network.
Soft switch 114, what be used to realize to call out continues and service trigger; When the user when called, receive and call out back inquiry SHLR, and return service access code according to SHLR and route the call to the IMS network, to realize single number service.
Smart Home Location Register 116 is used to store and inserted the professional information of network No. before the fixed network user contracts.
Among the embodiment of the system of single number service, CSCF further comprises between realization IMS user provided by the invention and the soft switching users: P-CSCF, be used for the Ingress node that the IMS network is inserted in the multimedia terminal, and be responsible for the agency of signaling and message; I-CSCF is used for being responsible for assignment that the user registers S-CSCF and inquiry (through inquiring about, for user to the S-CSCF that is assigned as its service); S-CSCF is used to provide the registration service, session control of multimedia terminal, relevant routing (session and service request as to the user are carried out route) and service trigger function, and the maintain sessions state information.Wherein, the service trigger function comprises according to receiving the different of message and medium type, triggers the single number service logic; For single number service, needing according to coming call type to differentiate calling is audio call or video call, thereby video call is taked the processing mode different with audio call; For the voice incoming call, S-CSCF triggers the single number service logic according to iFC, and for the video incoming call, S-CSCF directly routes the call to the multimedia terminal.
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the system of single number service; S-CSCF routes the call to MGCF MGCF to get into fixed network according to crossing network No., and soft switch SS can route the call to MGCF to get into the IMS network according to crossing network No..
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the system of single number service; Single number service platform AS is further used for: (content of filling in the route header field is for calling out the address of next jumping, and form is: Route: < sip:ats01.sh.ctcims.cn according to INVITE Route header field; Lr >; Its expression call out next jump to being designated the network element of ats01.sh.ctcims.cn) Service Trigger Information that carries, carry out correspondent service logic; If called voice single number service, the single number service platform issues two INVITE; Wherein, Article one, the INVITE called number remains unchanged; Another INVITE called number was network No.+telephone number; And (Access Code is used to identify the access code that institute will trigger business in the flexible exchanging network intellectuality, form is: AccessCode:11831404), send back to S-CSCF again to add access code Access Code.
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the system of single number service; Gateway control function selects module further to comprise: Breakout Gateway Control Function BGCF module is used for IMS network and fixed network soft switch, carries out the selection of WMG during perhaps with the C net interconnecting; MGCF MGCF module is used to provide IMS network and fixed network soft switch, the signaling control when perhaps netting the intercommunication of CS territory with C; IMS medium gateway function IM-MGW module is used to provide IMS network and fixed network soft switch, the medium conversion facilities when perhaps netting the intercommunication of CS territory with C.
Between realization provided by the invention IMS user and the soft switching users among the embodiment of the system of single number service; The single number service platform is that single number service is provided with initial filter standard or norm iFC; According to the difference of incoming call medium type, to the video incoming call with voice incoming call take different processing; For the video incoming call, the multimedia terminal of directly continuing; And, then trigger single number service according to iFC for the voice incoming call.
The system of single number service between realization IMS user provided by the invention and the soft switching users, multimedia terminal and fixed phone terminal need signatory related service in HSS and SHLR respectively.In HSS, the user needs the signatory respectively iFC to the voice and video incoming call; In SHLR, before need contracting, the user inserted the network No. business information.For instance, the iFC to the voice jack per line can adopt: (Method=" INVITE ") AND (Line=" m " Content=".
*Audio.
*") And (NOT (Line=" m " Content=".
*Vedio.
*")); The implication of this iFC is that the type of message received carries out service trigger when being m behavior audio but not the vedio among INVITE and the SDP.During the signatory IMS single number service of fixed telephone user, can with should business as business of triggering at first, promptly among the SHLR with preceding inserting the network No. business as the highest business of priority (for example, this business corresponding service access code is AC1).
Fig. 2 illustrates the structural representation of an embodiment of the system of single number service between realization IMS user provided by the invention and the soft switching users.
As shown in Figure 2, realize that the system of single number service between IMS user and the soft switching users mainly comprises: IMS network element, fixed network network element and C network element; Wherein
The IMS network element comprises:
(1) call session control CSCF module: P-CSCF, I-CSCF, S-CSCF; Wherein, P-CSCF is the Ingress node that the IMS network is inserted in the multimedia terminal, mainly is responsible for the agency of signaling and message.I-CSCF is responsible for assignment and the inquiry that the user registers S-CSCF.S-CSCF provides functions such as the registration service, session control of multimedia terminal, relevant routing and service trigger, and keeps session state information.
The service trigger function comprises: accomplish according to receiving the different of message and medium type, trigger the single number service logic.For single number service, needing according to coming call type to differentiate calling is audio call or video call, thereby video call is taked the processing mode different with audio call.For the voice incoming call, S-CSCF triggers the single number service logic according to iFC, and for the video incoming call, S-CSCF directly routes the call to the multimedia terminal.
(2) single number service platform AS: business platform possesses the service logic of multimedia terminal single number service, satisfies the functional requirement that strengthens single number service.
The functional requirement of single number service platform have following some: the Service Trigger Information that carries according to INVITE Route header field, carry out correspondent service logic.
Called voice single number service is handled: issue two INVITE, an INVITE called number is constant, and an INVITE called number was network No.+number, and adds Access Code, all sends back to S-CSCF then.
(3) HSS (home subscriber server, Home Subscriber Server)
HSS need preserve the user profile of multimedia terminal and the trigger message of single number service, and S-CSCF obtains this information through inquiry HSS, to trigger single number service.
(4) Breakout Gateway Control Function module BGCF, MGCF module MGCF and IMS media gateway function IM-MGW; Carry out the selection of MGCF when wherein, BGCF is mainly used in IMS network and fixed network soft switch and C net interconnecting.Signaling control and medium conversion facilities when MGCF and IM-MGW provide IMS and fixed network soft switch or the intercommunication of C net CS territory.
(5) border access controller BAC:IMS BAC is the agent equipment of P-CSCF and the media agent device of multimedia terminal, and that accomplishes safety assurance, signaling flow and Media Stream passes through functions such as function and IP address transition.
The fixed network network element mainly comprises:
(1) Smart Home Location Register SHLR: inserted the network No. business information before the storage fixed network user is signatory.
(2) the preceding network No. business platform of inserting: inserted the network No. function before the completion, so that SS arrives the IMS network with call proceeding.
(3) soft switch SS: accomplish continuing and service trigger of calling out.Service-user receives and calls out back inquiry SHLR when called, returns service access code according to SHLR and routes the call to the IMS network, to realize strengthening single number service.
Other network element shown in Fig. 2; Like the GMSC (GMSC in the C net; Gateway Mobile Switching Center) etc. all can adopt in the prior art related network elements to realize; Other similar network element that perhaps those skilled in the art knew is replaced, and just repeats no more here.
Single number service in this method is a called service: to the incoming call from the IMS network, directly triggered through IMS service control ISC by S-CSCF; To incoming call, inserted network No. before then needing and be routed to the IMS network and carry out ISC interface again and trigger from flexible exchanging network.
To incoming call from the IMS networking; When routing to flexible exchanging network for preventing to call out; The preceding professional repeated trigger of network No. of inserting that causes, business platform needs to insert INVITE with inserting the professional Access Code of network No. before the soft switch, and routes the call to S-CSCF again after adding network No..
Fig. 3 illustrates the flow chart of the method for single number service between a kind of IMS of realization user that the embodiment of the invention provides and the soft switching users.
As shown in Figure 3, realize that the method (from the voice incoming call handling process of IMS network) 300 of single number service between IMS user and the soft switching users comprises:
Step 4.1, S-CSCF analyzes the Request-URI address, with one tunnel call proceeding to the multimedia terminal.
Step 4.2 is called out another road, and S-CSCF routes the call to MGCF after confirming that this address belongs to flexible exchanging network.MGCF deletes the network No. of crossing in the called number, sends a message to SS, and SS is initiated to the inquiry of SHLR, and carries the service access code AC1 in the INVITE of being received, is convenient to insert the network No. business before SHLR confirms and triggers.Other called service if the user contracts, then SHLR returns the service access code of next priority, otherwise, the SS user's (requiring MGCF transparent transmission Access Code header field here) that continues.
Fig. 4 illustrates the flow chart of another embodiment of the method for single number service between realization IMS user provided by the invention and the soft switching users.
As shown in Figure 4, realize that the method (from the voice incoming call handling process of fixed network network) 400 of single number service between IMS user and the soft switching users comprises:
Step 5, the preceding network No. business platform of inserting added network No. carrying out conversion to called subscriber's identifying information, initiated a new INVITE then to SS, and Request-URI and To territory are: cross network No.+862168360000.
Step 7, MGCF deletes the network No. of crossing in the called number, sends a message to S-CSCF (requiring MGCF transparent transmission Acess Code header field here).
Step 9, single number service platform are according to user's setting, and issue two-way and call out: the one road to the multimedia terminal, and another road is to soft switch.For the former, the single number service platform directly issues the message of being received; For the latter, the single number service platform need carry out conversion to called subscriber's identifying information, adds network No., initiates a new INVITE then to S-CSCF, and Request-URI and To territory are: cross network No.+862168360000.
Step 10.1, S-CSCF analyzes the Request-URI address, with one tunnel call proceeding to the multimedia terminal.
Step 10.2 is called out another road, confirm that this address belongs to flexible exchanging network after, route the call to MGCF.MGCF deletes the network No. of crossing in the called number, sends a message to SS, and SS is initiated to the inquiry of SHLR, and carries the service access code AC1 in the INVITE of being received, is convenient to insert the network No. business before SHLR confirms and triggers.Other called service if the user contracts, then SHLR returns the service access code of next priority, otherwise, the SS user's (requiring MGCF transparent transmission Acess Code header field here) that continues.
Fig. 5 illustrates the flow chart of another embodiment of the method for single number service between realization IMS user provided by the invention and the soft switching users.
As shown in Figure 5, realize that the method (from the video incoming call handling process of IMS network) 500 of single number service between IMS user and the soft switching users comprises:
Fig. 6 illustrates the flow chart of another embodiment of the method for single number service between realization IMS user provided by the invention and the soft switching users.
As shown in Figure 6, realize that the method (from the video incoming call handling process of fixed network network) 600 of single number service between IMS user and the soft switching users comprises:
Step 5, the preceding network No. business platform of inserting added network No. carrying out conversion to called subscriber's identifying information, initiated a new INVITE then to SS, and Request-URI and To territory are: cross network No.+862168360000.
Step 7, MGCF deletes the network No. of crossing in the called number, sends a message to S-CSCF (requiring MGCF transparent transmission Acess Code header field here).
With reference to the exemplary description of aforementioned the present invention, those skilled in the art can clearly know the present invention and have the following advantages:
1, the system and method for single number service between realization IMS user provided by the invention and the soft switching users is stored signing service information with identical number respectively in home subscriber server HSS and Smart Home Location Register SHLR; When the user calls out when called as caller and video, need not pass through single number service platform AS; The user is when speech called, and the single number service platform AS that routes the call to earlier in the IMS network carries out service trigger.
This programme can conveniently be disposed single number service; Support caller single number service and called single number service function simultaneously; Can realize the function of a shared number between two different types of terminals of network; Realized that the service terminal exhalation shows duplicate numbers, voice incoming call multimedia terminal and fixed phone terminal are with shaking, and the video incoming call is the functional requirement of multimedia terminal ring only.
2, the system and method for single number service between realization IMS user provided by the invention and the soft switching users is realized professional triggering and execution jointly by the single number service platform AS of IMS network and the preceding network No. business platform of inserting of flexible exchanging network; To incoming call, directly trigger through IMS service control ISC by the S-CSCF among the call session controller CSCF from the IMS network; To incoming call from flexible exchanging network, then before inserted network No., be routed to the IMS network, carry out ISC again and trigger.
3, the system and method for single number service between realization IMS user provided by the invention and the soft switching users; The preceding network No. business platform of in flexible exchanging network, disposing of inserting, the preceding network No. business platform of inserting routes the call to the IMS network to realize the triggering of single number service.
4, the system and method for single number service between realization IMS user provided by the invention and the soft switching users; In the IMS network, initial filter standard or norm iFC is set for single number service; According to the difference of incoming call medium type, to the video incoming call with voice incoming call take different processing; For the video incoming call, the multimedia terminal of directly continuing; And, then trigger single number service platform AS according to iFC for the voice incoming call.
5, the system and method for single number service between realization IMS user provided by the invention and the soft switching users; In the INVITE of the Session Initiation Protocol of IMS network, introduce Access Code header field, single number service platform AS inserted the professional access code of network No. before with soft switch and inserted the AccessCode header field; According to the Access Code header field that inserts access code, it is professional to insert network No. before will no longer triggering during soft switch inquiry SHLR, thereby avoids this business repeated trigger.
6, the system and method for single number service between realization IMS user provided by the invention and the soft switching users; S-CSCF routes the call to MGCF MGCF to get into fixed network according to crossing network No., and soft switch SS can route the call to MGCF to get into the IMS network according to crossing network No..
Description of the invention provides for example with for the purpose of describing, and is not the disclosed form that exhaustively perhaps limit the invention to.A lot of modifications and variation are obvious for those of ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment that have various modifications that the present invention's design is suitable for special-purpose.
Claims (14)
1. a system that realizes single number service between IMS user and the soft switching users is characterized in that, said system comprises:
CSCF CSCF module is used for the trigger message through inquiry home subscriber server HSS acquisition single number service, to trigger single number service;
Single number service platform AS, the service logic that is used to carry out the multimedia terminal single number service is to satisfy the functional requirement of single number service;
Said home subscriber server HSS is used to preserve the user profile of multimedia terminal and the trigger message of single number service;
The gateway control function module is used for IMS network and fixed network soft switch, or carries out the selection of MGCF during with the C net interconnecting;
Border access controller BAC, as the agent equipment of said CSCF and the media agent device of multimedia terminal, realization signaling flow and Media Stream pass through function and IP address transition;
Before inserted the network No. business platform, inserted the network No. function before being used for realizing, so as SS with call proceeding to the IMS network;
Soft switch SS, what be used to realize to call out continues and service trigger; When the user when called, receive and call out back inquiry Smart Home Location Register SHLR, and return service access code according to said SHLR and route the call to the IMS network, to realize single number service;
Said Smart Home Location Register SHLR is used to store and inserted the professional information of network No. before the fixed network user contracts.
2. system according to claim 1 is characterized in that, said CSCF further comprises:
P-CSCF is used for the Ingress node that the IMS network is inserted in the multimedia terminal, is responsible for the agency of signaling and message;
I-CSCF is used for being responsible for assignment and the inquiry that the user registers S-CSCF;
S-CSCF is used to provide the registration service, session control of multimedia terminal, relevant routing and service trigger function, and the maintain sessions state information.
3. system according to claim 2 is characterized in that, said service trigger function comprises according to receiving the different of message and medium type, triggers the single number service logic;
For single number service, needing according to coming call type to differentiate calling is audio call or video call, thereby video call is taked the processing mode different with audio call;
For the voice incoming call, S-CSCF triggers the single number service logic according to iFC, and for the video incoming call, S-CSCF directly routes the call to the multimedia terminal.
4. system according to claim 2; It is characterized in that; Said S-CSCF routes the call to MGCF MGCF module to get into fixed network according to crossing network No., and soft switch SS can route the call to said MGCF module to get into the IMS network according to crossing network No..
5. system according to claim 1 is characterized in that, said single number service platform AS is further used for: according to the Service Trigger Information that INVITE Route header field carries, carry out correspondent service logic;
If called voice single number service, said single number service platform issues two INVITE; Wherein, an INVITE called number remains unchanged, and another INVITE called number was network No.+telephone number, and adds access code Access Code, sends back to S-CSCF again.
6. system according to claim 1 is characterized in that, the gateway control function module further comprises:
Breakout Gateway Control Function BGCF module is used for IMS network and fixed network soft switch, or carries out the selection of WMG during with the C net interconnecting;
MGCF MGCF module is used to provide IMS network and fixed network soft switch, the signaling control when perhaps netting the intercommunication of CS territory with C;
IMS medium gateway function IM-MGW module is used to provide IMS network and fixed network soft switch, the medium conversion facilities when perhaps netting the intercommunication of CS territory with C.
7. system according to claim 1 is characterized in that, said single number service platform AS is that single number service is provided with initial filter standard or norm iFC, according to the difference of incoming call medium type, to the video incoming call with voice incoming call take different processing; For the video incoming call, the multimedia terminal of directly continuing; And, then trigger single number service according to said iFC for the voice incoming call.
8. a method that realizes single number service between IMS user and the soft switching users is characterized in that, uses that any described system realizes single number service between IMS user and the soft switching users among the aforementioned claim 1-7; Said method comprises:
In home subscriber server HSS and Smart Home Location Register SHLR, store signing service information with identical number respectively;
When the user calls out when called as caller and video, need not pass through single number service platform AS; The user is when speech called, and the said single number service platform AS that routes the call to earlier in the IMS network carries out service trigger.
9. method according to claim 8 is characterized in that, said method also comprises: realize professional triggering and execution jointly by the single number service platform AS of IMS network and the preceding network No. business platform of inserting of flexible exchanging network;
To incoming call, directly trigger through IMS service control ISC by the S-CSCF in the said call session control CSCF module from said IMS network;
To incoming call from said flexible exchanging network, then before inserted network No., be routed to said IMS network, carry out said ISC again and trigger.
10. method according to claim 8 is characterized in that, in flexible exchanging network, dispose said before inserted the network No. business platform, inserted the network No. business platform before said and routed the call to the IMS network to realize the triggering of single number service.
11. method according to claim 8 is characterized in that, said method also comprises: in the IMS network for single number service is provided with initial filter standard or norm iFC, according to the difference of incoming call medium type, to the video incoming call with voice incoming call take different processing;
For the video incoming call, the multimedia terminal of directly continuing; And
For the voice incoming call, then trigger single number service platform AS according to said iFC.
12. method according to claim 8 is characterized in that, said method also comprises:
When processed voice incoming call single number service, said single number service platform AS issues two-way and calls out, and wherein, an INVITE called number remains unchanged; Another INVITE called number was network No.+number, and added Access Code, all sent back to S-CSCF then.
13. method according to claim 8; It is characterized in that; Said method also comprises: in the INVITE of the Session Initiation Protocol of IMS network, introduce Access Code header field, said single number service platform AS inserted the professional access code of network No. before with soft switch and inserted said AccessCode header field;
According to the Access Code header field of said insertion access code, it is professional to insert network No. before said soft switch will no longer trigger when inquiring about SHLR.
14. method according to claim 8; It is characterized in that; Said method also comprises: S-CSCF routes the call to MGCF MGCF module to get into fixed network according to crossing network No., and soft switch SS can route the call to said MGCF module to get into the IMS network according to crossing network No..
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| CN2010105157186A CN102457481A (en) | 2010-10-22 | 2010-10-22 | System and method for realizing unified number service between IMS user and soft switch user |
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