CN101132400A - Method for implementing number carrying in IP multimedia subsystem network - Google Patents
Method for implementing number carrying in IP multimedia subsystem network Download PDFInfo
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- CN101132400A CN101132400A CNA2006101386669A CN200610138666A CN101132400A CN 101132400 A CN101132400 A CN 101132400A CN A2006101386669 A CNA2006101386669 A CN A2006101386669A CN 200610138666 A CN200610138666 A CN 200610138666A CN 101132400 A CN101132400 A CN 101132400A
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Abstract
This invention discloses a method for realizing carrying numbers in an IP multimedia subsystem network including: 1, a first UE transacts number-carry service to an ingoing domain and refreshes the addressing ID of said domain, 2, a second UE starts up a call to the first UE at its attributed domain and enquires to get the addressing ID of the first UE by a domain name system server of phone number mapping working group, 3, the two UE finish the call connection according to the addressing ID of the first UE.
Description
Technical field
The present invention relates to IMS (IP Multimedia System) network, particularly the number carrying method in the IMS network.
Background technology
The IMS full name is IP Multimedia Subsystem (IP Multimedia System), be the multimedia communication network of a kind of employing SIP (session initiation protocol) of 3GPP (3G (Third Generation) Moblie partnership projects) definition as call control signalling, adopted at present, as the core net of future generation of mobile fixed network fusion by 3GPP2, TISPAN standards bodies such as (telecommunications and the Internet converged services and high-level network protocols).The Customs Assigned Number of IMS system is divided into private user identity (PVI:Private useridentities) and open user ID (PUI:Public user identities).
Each IMS user has one or several PVI.Private user identity is distributed by the network operator of home network, is used for registration, mandate, management, charging etc.This sign adopts NAI (Network Access Identifier) form, can take (Network Access Identifier at NAI, define in rfc2486, form is nai=username/ (username " @ " realm)) in comprise the mode of IMSI (custom IC) as private user identity.PVI is unique global identity that home network operator provides, can be from network perspective identifying user subscription data in home network.PVI is invisible to the user usually, and what its identified is subscription data, is not the user.PVI is used for identifying the user profile of preserving among the HSS (home signature user server) (as authentication information etc.).
Each IMS user has one or more PUI.To the user as seen the similar telephone number of PUI, generally is used for user and other user's communication.Telecom coding scheme and Internet encoding scheme can be used for addressed user, and PUI can adopt SIP URI (URI: the unified resource identifier) form or " tel: "-URI form (the unified resource sign of phone number format).For called flow, PUI also can be used for identifying user data in HSS (home signature user server).
The relation of PVI and PUI is as shown in Figure 1: PUI can corresponding a plurality of PVI, and similar " multimachine ", a same PVI also can corresponding a plurality of PUI, similar " Multi-Subscriber Number ".
The target that number carries (NP:Number Portability) is that a kind of telecommunication user is migrated in different geographic areas or changeed net and needn't change oneself number between different operators.It is not only telecom supervision authority as a kind of technology and breaks up monopoly, reduces a kind of supervision requirement of competition threshold to operator, also is that operator is a kind of business that self competitiveness of raising is adopted.
The general Customs Assigned Number mode that adopts E.164 in the legacy network, do not implementing before number carries, E.164 itself just possesses the ability of carrying out route in network numbering, and implement after number carries, the number portability database of need to adopt concentrating is stored, and adopts the framework of intelligent network to solve number and carry problem.Customs Assigned Number adopts SIP URI form in the IMS network, form for " user name @ domain name ", adopt HSS (home signature user server) to come storing user subscription data, adopt the mode in territory to organize user data among the IMS, a territory is exactly user's a addressing space, under most of situation, there is corresponding relation closely in the operator zone of territory and operator.Theoretically, its number carries and also can adopt the application server solution that is similar to the traditional intelligence net, but this solution can not manage well, and poor expandability.
Summary of the invention
In order to overcome above-mentioned defective, the object of the present invention is to provide number carrying method in a kind of IMS network of managerial and favorable expandability.
To achieve the above object of the invention, the present invention realizes that at the IP Multimedia System network method that number carries comprises:
(1) first user terminal is handled number portability service in the territory of moving into, and is updated in the addressable sign in this territory of moving into;
(2) second user terminals make a call to first user terminal in its territory, place, and obtain the addressable sign of first user terminal by the inquiry of telephone number mappings work group domain name system server;
(3) above-mentioned two users' terminal is finished to call out according to the addressable sign of first user terminal and is connected.
Wherein, described step (1) is specially:
(11) first user terminals are handled number portability service to the territory of moving into, and the addressable sign is changed to the addressable sign of distributing in the territory of moving into;
(12) telephone number mappings work group domain name system server upgrades the corresponding relation of virtual open user ID and addressable sign;
(13) first user terminals succeed in registration in the territory of moving into, and do not change method for routing.
Wherein, described step (2) is specially:
(21) second user terminals make a call to first user terminal in its territory, place, and will call out by the proxy module in the territory, the second user terminal place and be transferred to service module in the territory, the second user terminal place;
Service module in the territory, (22) second user terminal place is imported the virtual open user ID of first user terminal to telephone number mappings work group domain name system, initiates the inquiry of title authority pointer;
(23) telephone number mappings work group domain name system is inquired about the addressable sign that obtains first user terminal according to the virtual open user ID of first user terminal, and this addressable is identified the service module that returns in the territory, the second user terminal place.
Wherein, described step (3) is specially:
Service module in the territory, (31) second user terminal place utilizes the addressable sign of first user terminal, and inquiry obtains move into negotiation module in the territory of first user terminal;
Service module in the territory, (32) second user terminal place inserts routing iinformation tabulation ident value foremost with the move into host name of the negotiation module in the territory of first user terminal, and sends to move into negotiation module in the territory of first user terminal.
(33) first user terminals are moved into negotiation module in the territory according to the addressable sign inquiry place assigned user server of first user terminal, obtain move into service module in the territory of first user terminal, and give move into service module in the territory of first user terminal call forward.
Wherein, described proxy module is a Proxy Call Session Control Function.
Wherein, described service module is service call conversation control function, MGCF or interconnected boundary Control function.
Wherein, described negotiation module is the consultation call conversation control function.
Because such scheme has adopted telephone number mappings work group domain name system server (ENUM DNS), and ENUM DNS possesses the recursive query ability, makes the present invention good in method extensibility, the manageability that IP Multimedia System network realization number carries.When the routing iinformation of book server is imperfect, can obtain final required routing iinformation by higher level's server lookup, for example carry when adopting E.164 number when number, home server information is imperfect, can obtain E.164 number administration domain server address by DNS (domain name analysis system) inquiry, and then finish query function.
Because being expanded by existing ENUM DNS architecture, finishes the routing procedure during number carries, minimum to the existing standard procedure influence of IMS.
Because the service call module in the step can make this method applicability good for S-CSCF (service call conversation control function), MGCF (MGCF) or IBCF (interconnected boundary Control function).
Description of drawings
Fig. 1 is the schematic diagram that concerns of PVI and PUI;
Fig. 2 is the present invention's server connection diagram in the method that IP Multimedia System network realization number carries;
Fig. 3 carries signatory flow chart for the present invention's number in the method that IP Multimedia System network realization number carries;
Fig. 4 is the present invention ported subscriber called flow figure in the method that IP Multimedia System network realization number carries.
Embodiment
The technical scheme that the present invention adopts in the method that IP Multimedia System network realization number carries requires to be two open user ID (PUI) of each IMS user definition, one is the signatory IMS sign of initial user, be called V-PUI (virtual PUI) here, V-PUI to the user as seen, so-called number carries and just is meant carrying V-PUI, V-PUI can not directly be used as user's addressing usually, can not can not be used for identifying user data in HSS as registration; Another is designated the sign that the user can be used for route really, here be called addressable sign (R-PUI), R-PUI is generally invisible to the user, R-PUI is kept at ISIM (IP Multimedia System user identification code: IMS subscriber identity module) in the card, R-PUI will migrate in different geographic areas or changes net and change between different operators because of the user, exhaling in the flow process eventually, R-PUI can be used for identifying user data in HSS.When the user was not taken place to migrate in different geographic areas or changeed the net behavior between different operators, R-PUI was identical with V-PUI.The corresponding relation of V-PUI and R-PUI is managed by the ENMU dns server.
Need to prove to have only when user that number carries is taken place and do and just need adopt this programme to realize that number carries, and does not need when doing caller when called.The S-CSCF of Calling Side (service call conversation control function) handle the Calling Side operation flow and begin addressing called before, no matter called V-PUI is SIP URI or TEL is URI, no matter called the S-CSCF of Calling Side must arrive first the called addressable sign (R-PUI) of ENUM DNS inquiry, whether number took place to carry change the net behavior.
Major function node of the present invention has two: 1) IMS call treatment network element---CSCF (CSCF), IMS has defined three kinds of CSCF, is respectively S-CSCF (service), P-CSCF (Proxy Call Session Control Function) and I-CSCF (consultation call conversation control function); 2) ENUM dns server includes the number portability database of supporting the DNS access interface, the mapping table of this database storage V-PUI and R-PUI.
Below in conjunction with accompanying drawing the present invention is realized that at the IP Multimedia System network embodiment number carrying method of the method that number carries makes a detailed description.
As shown in Figure 2, suppose that territory, the current place of user UE1 is A, number is carried into the B territory, signature number portability service agreement between A and the B.
Fig. 3 shows the IMS Subscriber Number and carries signatory process flow diagram, may further comprise the steps:
201, user UE1 plans to go to B territory (territory of moving into), and application is accepted by IT system (customer service receiving system) in the B territory, and the B territory is that UE1 distributes new R-PUI (as R-PUI1), and V-PUI remains unchanged;
202, the territory receiving system of moving into sends number to ENUM DNS and carries signatory change request, includes V-PUI and R-PUI1, and it can adopt standardized access interface, also can be forms such as mail, fax;
203, ENUM DNS finishes the signatory change request legitimacy check of the territory operator of moving into, and revises the V-PUI of NPDB (number portability database) and the contrast relationship of R-PUI, and the R-PUI that UE1 is current is revised as R-PUI1;
204, ENUM DNS sends number to the territory of moving into and carries signatory change affirmation, and it can be a standard protocol interface, also can be mail, fax.The R-PUI1 that comprises user UE1 in the affirmation.
205, the territory of moving into is initiated number to the HSS of the previous territory A at UE1 place and is carried the deletion user data requests;
206, territory, the previous place of UE1 A check request legitimacy and in HSS deleted data, territory, current place sent replys;
207, the territory B that moves into inserts the user data of UE1 to this territory HSS request;
208, the territory B that moves into inserts the user data of UE1 to this territory HSS, and number portability service changes successfully, and the territory of moving into is converted to the current field.
Above steps is described the basic procedure that number carries signatory change.
Fig. 4 is the implementing procedure figure that the invention process number carries calling procedure.
301, IMS UE2 initiates INVITE (inviting the user to add calling) calling, and called is UE1;
302, S-CSCF (C) receives calling, initiates the DNS inquiry to ENUM DNS, and key word of the inquiry is the V-PUI (SIPURI or TEL URI) of UE1;
303, ENUM DNS receives inquiry, according to the V-PUI initiation recursive query of UE1, obtains the R-PUI (being specially R-PUI1 herein) of UE1;
304, ENUM DNS returns R-PUI1 to S-CSCF;
305, S-CSCF (C) utilizes R-PUI1 to initiate iterative query, inquiry obtains entry host I-CSCF (B) address in B territory, Fu Wu DNS Server can be a standard DNS Server herein, also can be integrated among the DNS-NPDB (domain name system number portability database);
306, S-CSCF (C) inserts Top Route (routing iinformation tabulation ident value foremost) with the host name of I-CSCF (B), and Request-URI is revised as R-PUI1, and inserting a parameter indication simultaneously is that NP calls out, and I-CSCF (B) is mail in calling;
307, I-CSCF (B) receives calling, according to Top Route indication, no longer carries out route according to Request-URI, according to R-PUI1 inquiry HSS (B), obtains the home service S-CSCF (B) of UE1;
308, I-CSCF (B) gives S-CSCF (B) with call forward;
309, S-CSCF (B) handles after user's the callee function logic forward call to UE1;
310, UE1 replys S-CSCF (B);
311, S-CSCF (B) will reply and be forwarded to I-CSCF (B);
312, I-CSCF (B) will reply and be forwarded to S-CSCF (C);
313, S-CSCF (C) will reply and be forwarded to UE2, call setup.
The INVITE that above steps is described behind employing the present invention calls out basic procedure, if INVITE changes other any dialogue into and asks outward, call flow is identical.
As shown in Figure 2, the continuous process of a certain user UE2 calling in C territory UE1 was as follows after number was carried into the signatory process in B territory and is carried into the B territory:
(a) UE1 handles number portability service to B territory operator, signs a contract, and changes the ISIM card, and the R-PUI in its ISIM card changes to the new logo that the B territory is distributed.Upgrade the corresponding relation of V-PUI and R-PUI in the ENUM dns server;
(b) UE1 succeeds in registration in the B territory and since registration carry routing iinformation---home domain is territory, current place, so route carries out route according to normal method for routing and gets final product, and do not do any change;
(c) C territory IMS user UE2 makes a call, and called is UE1, arrives the S-CSCF (C) of UE2 ownership through P-CSCF (Proxy Call Session Control Function);
(d) S-CSCF (C) initiates NAPTR (title authority pointer) inquiry to ENUM DNS, is input as the V-PUI (form can be TEL URI or SIP URI) of UE1;
(e) ENUM DNS inquires about the R-PUI that obtains UE1 according to the V-PUI of UE1, returns to S-CSCF (C);
(f) S-CSCF (C) utilizes R-PUI, and the Ingress node I-CSCF (B) (the consultation call conversation control function in B territory) in B territory is learnt in inquiry;
(g) S-CSCF (C) inserts Top Route (the highest route) with the host name of I-CSCF (B), sends to I-CSCF (B);
(h) I-CSCF (B) obtains S-CSCF (B) with the R-PUI of UE1 as keyword query HSS, and gives S-CSCF (B) with call forward, finishes the call proceeding process.
Adopt the present invention to realize that at the IP Multimedia System network method that number carries can realize carrying scheme based on the IMS number of ENUM DNS, its advantage is that existing network is changed minimum, possess good extensibility and manageability again, its foundational system is full distributed store, the path of message is shorter, and is less relatively to the time delay that network is introduced.
On the basis of the foregoing description, embodiment of the present invention can also be made some conversion and modification, and for example: 1, the calling party in the flow process can be that MGCF (MGCF)/IBCF (interconnected boundary Control function) waits other IMS to call out the control network element; 2, the number of realizing ported subscriber can be a number E.164.
Claims (7)
1. realize the method that number carries at the IP Multimedia System network for one kind, it is characterized in that: comprising:
(1) first user terminal is handled number portability service in the territory of moving into, and is updated in the addressable sign in this territory of moving into;
(2) second user terminals make a call to first user terminal in its territory, place, and obtain the addressable sign of first user terminal by the inquiry of telephone number mappings work group domain name system server;
(3) above-mentioned two users' terminal is finished to call out according to the addressable sign of first user terminal and is connected.
2. realize the method that number carries according to claim 1 is described at the IP Multimedia System network, it is characterized in that: described step (1) is specially:
(11) first user terminals are handled number portability service to the territory of moving into, and the addressable sign is changed to the addressable sign of distributing in the territory of moving into;
(12) telephone number mappings work group domain name system server upgrades the corresponding relation of virtual open user ID and addressable sign;
(13) first user terminals succeed in registration in the territory of moving into, and do not change method for routing.
3. realize the method that number carries according to claim 2 is described at the IP Multimedia System network, it is characterized in that: described step (2) is specially:
(21) second user terminals make a call to first user terminal in its territory, place, and will call out by the proxy module in the territory, the second user terminal place and be transferred to service module in the territory, the second user terminal place;
Service module in the territory, (22) second user terminal place is imported the virtual open user ID of first user terminal to telephone number mappings work group domain name system, initiates the inquiry of title authority pointer;
(23) telephone number mappings work group domain name system is inquired about the addressable sign that obtains first user terminal according to the virtual open user ID of first user terminal, and this addressable is identified the service module that returns in the territory, the second user terminal place.
4. realize the method that number carries according to claim 3 is described at the IP Multimedia System network, it is characterized in that: described step (3) is specially:
Service module in the territory, (31) second user terminal place utilizes the addressable sign of first user terminal, and inquiry obtains move into negotiation module in the territory of first user terminal;
Service module in the territory, (32) second user terminal place inserts routing iinformation tabulation ident value foremost with the move into host name of the negotiation module in the territory of first user terminal, and sends to move into negotiation module in the territory of first user terminal.
(33) first user terminals are moved into negotiation module in the territory according to the addressable sign inquiry place assigned user server of first user terminal, obtain move into service module in the territory of first user terminal, and give move into service module in the territory of first user terminal call forward.
5. according to claim 3 or 4 described methods of carrying at IP Multimedia System network realization number, it is characterized in that: described proxy module is a Proxy Call Session Control Function.
6. according to claim 3 or 4 described methods of carrying at IP Multimedia System network realization number, it is characterized in that: described service module is service call conversation control function, MGCF or interconnected boundary Control function.
7. realize the method that number carries according to claim 4 is described at the IP Multimedia System network, it is characterized in that: described negotiation module is the consultation call conversation control function.
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| CNA2006101386669A CN101132400A (en) | 2006-11-10 | 2006-11-10 | Method for implementing number carrying in IP multimedia subsystem network |
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| CNA2006101386669A CN101132400A (en) | 2006-11-10 | 2006-11-10 | Method for implementing number carrying in IP multimedia subsystem network |
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| WO2011029240A1 (en) * | 2009-09-14 | 2011-03-17 | 阿尔卡特朗讯公司 | Method for conversion between session initiation protocol message and integrated services digital network user part message and conversion device thereof |
| WO2012068904A1 (en) * | 2010-11-22 | 2012-05-31 | 中兴通讯股份有限公司 | Method and server for obtaining operator routing number |
| CN102647709A (en) * | 2012-03-27 | 2012-08-22 | 华为技术有限公司 | Method and device for mobile number portability |
| CN103701954A (en) * | 2014-01-03 | 2014-04-02 | 中国联合网络通信集团有限公司 | Domain name addressing method and domain name addressing device |
| CN104519308A (en) * | 2013-09-26 | 2015-04-15 | 中国电信股份有限公司 | Video access control system based on IP (Internet Protocol) multimedia subsystem and service processing method |
| CN109547491A (en) * | 2019-01-04 | 2019-03-29 | 中国联合网络通信集团有限公司 | A kind of group user number of taking turns the communication means and system of net |
| CN109600390A (en) * | 2019-01-04 | 2019-04-09 | 中国联合网络通信集团有限公司 | A kind of group user number of taking turns the communication means of net, Call-Establish-Success rate center |
| CN109743720A (en) * | 2019-01-04 | 2019-05-10 | 中国联合网络通信集团有限公司 | Call processing method, system and storage medium |
| CN109802958A (en) * | 2019-01-04 | 2019-05-24 | 中国联合网络通信集团有限公司 | Communication means, service control point/server and Media Gateway Control Function entity |
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| CN102474501A (en) * | 2009-09-14 | 2012-05-23 | 阿尔卡特朗讯公司 | Method for conversion between sip message and isup message and conversion apparatus |
| US8683057B2 (en) | 2009-09-14 | 2014-03-25 | Alcatel Lucent | Method for conversion between SIP message and ISUP message and conversion apparatus |
| WO2011029240A1 (en) * | 2009-09-14 | 2011-03-17 | 阿尔卡特朗讯公司 | Method for conversion between session initiation protocol message and integrated services digital network user part message and conversion device thereof |
| CN102474501B (en) * | 2009-09-14 | 2014-11-05 | 阿尔卡特朗讯公司 | Method for conversion between SIP message and ISUP message and conversion apparatus |
| WO2012068904A1 (en) * | 2010-11-22 | 2012-05-31 | 中兴通讯股份有限公司 | Method and server for obtaining operator routing number |
| CN102647709B (en) * | 2012-03-27 | 2015-04-08 | 华为技术有限公司 | Method and device for mobile number portability |
| CN102647709A (en) * | 2012-03-27 | 2012-08-22 | 华为技术有限公司 | Method and device for mobile number portability |
| CN104519308A (en) * | 2013-09-26 | 2015-04-15 | 中国电信股份有限公司 | Video access control system based on IP (Internet Protocol) multimedia subsystem and service processing method |
| CN104519308B (en) * | 2013-09-26 | 2018-05-01 | 中国电信股份有限公司 | Video access control system and method for processing business based on IP multimedia subsystem |
| CN103701954A (en) * | 2014-01-03 | 2014-04-02 | 中国联合网络通信集团有限公司 | Domain name addressing method and domain name addressing device |
| CN103701954B (en) * | 2014-01-03 | 2017-05-24 | 中国联合网络通信集团有限公司 | Domain name addressing method and domain name addressing device |
| CN109547491A (en) * | 2019-01-04 | 2019-03-29 | 中国联合网络通信集团有限公司 | A kind of group user number of taking turns the communication means and system of net |
| CN109600390A (en) * | 2019-01-04 | 2019-04-09 | 中国联合网络通信集团有限公司 | A kind of group user number of taking turns the communication means of net, Call-Establish-Success rate center |
| CN109743720A (en) * | 2019-01-04 | 2019-05-10 | 中国联合网络通信集团有限公司 | Call processing method, system and storage medium |
| CN109802958A (en) * | 2019-01-04 | 2019-05-24 | 中国联合网络通信集团有限公司 | Communication means, service control point/server and Media Gateway Control Function entity |
| CN109600390B (en) * | 2019-01-04 | 2021-04-13 | 中国联合网络通信集团有限公司 | Group user number portability communication method and call session control center |
| CN109547491B (en) * | 2019-01-04 | 2021-06-04 | 中国联合网络通信集团有限公司 | Group user number portability communication method and system |
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