CN101094172A - Addressing system and method between packet domains - Google Patents
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- CN101094172A CN101094172A CN 200610112255 CN200610112255A CN101094172A CN 101094172 A CN101094172 A CN 101094172A CN 200610112255 CN200610112255 CN 200610112255 CN 200610112255 A CN200610112255 A CN 200610112255A CN 101094172 A CN101094172 A CN 101094172A
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- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
Abstract
The system comprises: calling packet network used for sending the session request comprising E.164 format called number to the called packet network; and a called packet network comprising a number-converting module used for sending a E.164 called number converting request to the number translating database, and if conversion succeeds and the called number is an IMS user, using the session control module in packet network to make the next process; if conversion succeeds and the called number is a E164 heterogeneous network user or the conversion fails, using the E.164 heterogeneous network interconnection module to the interconnection exit module to make next process.
Description
Technical field
The present invention relates to the communications field, relate in particular to addressing system and method between a kind of packet domain.
Background technology
At present, continuous maturation along with group technology, develop based on Circuit-switched conventional telecommunication network towards broadband telecommunication net based on packet switching, using SIP then is one of current technology trends as the call control signalling of grouping telecommunications core network, as 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) Ding Yi IMS, IMS is also by ITU-T (InternationalTelecommunication Union-Telecommunication StandardizationSector simultaneously, ITU Telecommunication Standardization Sector), ETSI (EuropeanTelecommunications Standards Institute, ETSI) etc. normal structure is adopted, be that the grouping telecommunications network is realized packet voice and grouped data, the unified multimedia service and the objective network of application are provided.
Usually, IMS user need have the user ID of a SIP URI form, SIPURI (Session Initiation Protocol Uniform Resource Identifier, Session initiation Protocol unified resource sign) comprises " user name " and " domain name ", as " smith@home.net ", in addition, for with the traditional circuit domain network interworking, IMS user also needs an E.164 Subscriber Number of form, E.164 be the E.164 international public telecommunication numbering plan of series standard definition of ITU-T, as " 86-755-28000000 " or " 86-13500000000 " etc.And the traditional circuit domain user generally has only the E.164 Subscriber Number of form.
In the IMS standard, number format initiates a session request to called if E.164 caller is adopted, then the S-CSCF of caller ownership is when carrying out called routing addressing processing, use the ENUM/DNS translating mechanism that called E.164 number translation is become a global routable SIP URI, if translation failure, then this conversation request is sent to arbitrary suitable entities (as the media resource function controller, so that play a verbal announcement) of BGCF or caller home network or S-CSCF sends a suitable sip response to caller.
Above-mentioned processing procedure is based on following such hypothesis: if called be an IMS user, the S-CSCF of caller ownership can translate into a SIP URI by ENUM/DNS with its E.164 number so.If that is: through after the translation, final called identification is a SIP URI form, so called is exactly IMS user or other packet domain user; If final called identification is a form E.164, so called is exactly the traditional circuit domain user.
But in fact, if caller and called be cross operator or cross-region user, such hypothesis may not be set up, in China, called is an IMS user in the U.S. such as caller, and " 001-212-5552222 " dialed in caller, the S-CSCF of caller ownership possibly can't rely on ENUM/DNS this number translation is become one at the SIP of U.S. Register URI, unless an ENUM/DNS system that the whole world is interconnected is arranged, but there is not such system in present stage at least.
Like this, when the S-CSCF of caller ownership can't translate successfully called E.164 number, if continue route, according to standard, the conversation request that caller is initiated will be routed to traditional circuit domain, and obviously, this will cause routing error.
In addition, called E.164 number and the caller home network can't successfully be translated also may be the H.323 network user, flexible exchanging network user etc., and current standard can't be handled equally.In the present invention, adopting E.164 with (all or part of), the non-IMS network of number format is referred to as E.164 heterogeneous network, comprise traditional circuit domain network, H.323 network, flexible exchanging network etc., wherein, H.323 in network and the flexible exchanging network except can adopting E.164 number, also can adopt the group character of other form, as IP address, URI or URL (Uniform Resource Locator H.323, uniform resource locator) etc., promptly part adopts E.164 number format.
Summary of the invention
The invention provides addressing system and method between a kind of packet domain, after the caller packet network is failed to the E.164 number translation in the conversation request, this conversation request is routed to called home network and carries out E.164 number translation once more, obtaining corresponding group character, thereby can carry out correct route.
Addressing system comprises between packet domain of the present invention: the caller packet network, be used for the session request is sent to called packet network, and conversation request comprises the E.164 called number of form; And called packet network, comprise the number translated module, be used for to the conversion request of number translation database initiation the called number of the E.164 form of conversation request, change successfully and the called IMS of being user's situation under, carry out subsequent treatment by the session control module in the called packet network, change successfully and called be under the situation of E.164 heterogeneous network user or convert failed, carry out subsequent treatment by E.164 heterogeneous network interworking module in the called packet network or intercommunication outlet module.
Above-mentioned number translation database is used for converting the called number of form E.164 to group character.
Above-mentioned number translated module is in following: the intercommunication inlet module in the called packet network, session control module and intercommunication selection strategy module.
Above-mentioned number translated module also can be a standalone module in the called packet network.Can be arranged in intercommunication inlet module, session control module or the intercommunication selection strategy module of packet network for the number translated module of standalone module.
Addressing method may further comprise the steps between packet domain of the present invention:
Step S202, the caller packet network is changed the called number of the E.164 form in the conversation request that receives by the number translation database, if convert failed, then will carrying E.164, the conversation request of the called number of form is sent to called packet network; And
Step S204, called packet network is changed the called number of the E.164 form in the conversation request by the number translation database, if change successfully and the called IMS of being user, then carry out subsequent treatment by the session control module in the called packet network, if change successfully and called be E.164 heterogeneous network user or convert failed, then carry out subsequent treatment by E.164 heterogeneous network interworking module in the called packet network or intercommunication outlet module.
In step S202, when convert failed, conversation request is sent to the intercommunication selection strategy module in the caller packet network, and described intercommunication selection strategy module is sent to called network according to the called number strategy with the session request.
Above-mentioned called number strategy at least can be for following a kind of: E.164 number, called place domain names.
The above-mentioned number translation database E.164 called number of form converts group character to.Can initiate conversion request to the number translation database by the number translated module.
Above-mentioned number translated module is in following: the intercommunication inlet module in the called packet network, session control module and intercommunication selection strategy module.The number translated module also can be a standalone module in the called packet network.Can be arranged in intercommunication inlet module, session control module or the intercommunication selection strategy module of packet network for the number translated module of standalone module.
In the present invention, the caller packet network by number E.164 to conversation request of called initiation, the caller packet network is behind translation failure, this conversation request is routed to called packet network and carries out E.164 number translation once more, to obtain corresponding group character, thereby carry out correct route, improved systematic function.
Description of drawings
Accompanying drawing provides further understanding of the present invention, and is attached to a part that constitutes the application among the application, illustrates that with specification embodiments of the invention are to explain principle of the present invention.In the accompanying drawings,
Fig. 1 is the logic diagram according to packet network of the present invention; And
Fig. 2 is the flow chart according to addressing method between packet domain of the present invention.
Embodiment
Describe embodiments of the invention in detail below with reference to accompanying drawing.
Fig. 1 is the logic diagram according to packet network of the present invention.As shown in Figure 1, packet network comprises:
Number translation database 102 and number translation database 124, will be E.164 number translation become group character, as the ENUM/DNS server, group character can be the URI sign of SIP URI and so on or H.323 the URL sign of URL and so on or IP address etc.
Functions such as session control module 104 and session control module 116, processing conversation request, route continue are as S-CSCF or I-CSCF.
Interface between session control module and the number translation database is the E1 interface, and by this interface, the session control module is initiated query requests to the number translation database, carries E.164 number in the request.The number translation database returns an inquiry response to the session control module, carries Query Result in the response.The E1 interface can be a Diameter etc.
Interface between session control module and the intercommunication selection strategy module is the S1 interface, and when E.164 number translation was failed, the session control module was sent to intercommunication selection strategy module by the S1 interface with the session request.The S1 interface can be Session Initiation Protocol or internal interface agreement etc.
E.164 intercommunication selection strategy module 106 and intercommunication selection strategy module 118 handle the number analysis function to select the intercommunication outlet, as BGCF.Intercommunication selection strategy module is according to the conversation request received, based on called number (as number analysis E.164) strategy, selects the session request is sent to E.164 heterogeneous network interworking module or intercommunication outlet module.Intercommunication selection strategy module is inquired about the called number in the session request, promptly carries out the called number analysis, is heterogeneous network circuit domain user E.164 to judge called, and the session request is sent to corresponding E.164 heterogeneous network interworking module.Or to judge called be another network user (non-caller ownership network), and promptly cross operator or cross-region user then are sent to the session request corresponding intercommunication outlet module.Wherein, the data of being inquired about can be built in the intercommunication selection strategy module, also can an external data base.Can expect that this moment, called number was E.164 during form, or be heterogeneous network user E.164, or be another IMS network user.
Intercommunication selection strategy module can be sent to different E.164 heterogeneous network interworking modules and different intercommunication outlet modules with the session request based on the called number strategy.
Intercommunication selection strategy module and E.164 heterogeneous network interworking module 108, E.164 the interface between the heterogeneous network interworking module 120 is the S2 interface, can be Session Initiation Protocol or internal interface agreement etc.Interface between intercommunication selection strategy module and the intercommunication outlet module is the S3 interface, can be Session Initiation Protocol or internal interface agreement etc.
In addition, destination Mobile Station International ISDN Number in the conversation request that intercommunication selection strategy module 118 is received is a form E.164, also can initiate query requests to the number translation database, if E.164 number translation success, then the session request is sent to the session control module, otherwise is sent to E.164 heterogeneous network interworking module.
Intercommunication outlet module 110 and intercommunication outlet module 122 are sent to the intercommunication inlet module of another network with the conversation request of receiving, as IBCF or BGCF or I-CSCF.Interface between intercommunication outlet module and the intercommunication inlet module is the S4 interface, can be Session Initiation Protocol etc.The intercommunication outlet module also can be sent to different intercommunication inlet module with the session request based on the called number strategy.
Intercommunication inlet module 112 is sent to present networks with the conversation request of receiving, as IBCF or BGCF or I-CSCF.If the destination Mobile Station International ISDN Number in the conversation request that the intercommunication inlet module is received is a form E.164, then can initiate query requests to the number translation database by built-in number translation module 114, carry the destination Mobile Station International ISDN Number of this E1.64 form in the request, if successful inquiring, the number translation database returns corresponding group character, number translation module 114 is carried out respective handling according to different group characters: if the SIP URI of IMS network, then the number translation module is sent to the session control module with the session request by the S6 interface, and the S6 interface can be a Session Initiation Protocol, or the internal interface agreement etc.; Otherwise number translation module 114 is sent to intercommunication selection strategy module 118 by the S5 interface.If the inquiry failure, i.e. E.164 number translation failure, then number translation module 114 is sent to intercommunication selection strategy module with the session request by the S5 interface, and the S5 interface can be Session Initiation Protocol or internal interface agreement etc.
If the destination Mobile Station International ISDN Number in the conversation request that the intercommunication inlet module is received is a form E.164, also can to one independently the number translation module initiate E.164 number translation request, by the latter again to the number translation data base querying.
If the destination Mobile Station International ISDN Number in the conversation request that the intercommunication inlet module is received is a form E.164, can also not do translation handles, and the session request is sent to intercommunication selection strategy module or session control module, by the back both in built-in number translation module translate processing.
Number translation module 114, with number E.164 to the inquiry of number translation database request to translate into corresponding group character, when translating successfully according to different group character strategies, the session request is sent to session control module or intercommunication selection strategy module, during translation failure the session request is sent to intercommunication selection strategy module.Interface between number translation module and the number translation database is the E2 interface, and the E2 interface can be a Diameter etc.
The number translation module can be an independent network element, when conversation request process intercommunication inlet module 112 or session control module 116 or intercommunication selection strategy module 118, initiates E.164 number translation request to the number translation module.
The number translation module also can be built in intercommunication inlet module or session control module or the intercommunication selection strategy module, when conversation request during, initiate E.164 number translation request to the number translation database by intercommunication inlet module or session control module or intercommunication selection strategy module through intercommunication inlet module or session control module or intercommunication selection strategy module.
As seen, the intercommunication selection strategy module 118 that is in called network is slightly different with the intercommunication selection strategy module 106 that is in the caller network, destination Mobile Station International ISDN Number can be a form E.164 in the conversation request that intercommunication selection strategy module 118 is received, also can right and wrong IMS grouping of network identify, the i.e. E.164 group character of heterogeneous network support, as flexible exchanging network, the H.323 group character in the network, intercommunication selection strategy module 118 is sent to corresponding E.164 heterogeneous network interworking module or intercommunication outlet module based on the called number strategy with the session request.
E.164 heterogeneous network interworking module, be with different E.164 heterogeneous networks (as the traditional circuit domain network, H.323 network, flexible exchanging network etc.) carry out the module of intercommunication, can be MGCF, IBCF, or IBCF adds IWF (Interworking Function, IWF) etc., it can link to each other by SIP with intercommunication selection strategy intermodule, E.164 the agreement of supporting by each heterogeneous network between heterogeneous network with difference links to each other, as ISUP (IntegratedServices Digital Network User Part, integrated services digital network User Part) agreement, H.323 agreement etc.Multiple E.164 heterogeneous network interworking module can be arranged, as circuit domain interworking module, H.323 interworking module, soft switch interworking module etc., respectively with the intercommunication of different E.164 heterogeneous network; Also can have only two kinds of E.164 heterogeneous network interworking modules, E.164 circuit domain interworking module (with the traditional circuit domain network interworking).
Can see from above-mentioned framework, be with the maximum difference of current I MS standard, when conversation request arrives called network, if the destination Mobile Station International ISDN Number in the conversation request of receiving is a form E.164, then also need initiate a number translation request E.164 again by the number translation module of called network, if translate successfully, and called be IMS user, carry out subsequent treatment thereby enter the session control module.If translation success and be E.164 heterogeneous network user or translation failure, then thinking called is heterogeneous network user E.164, the heterogeneous network interworking module carries out subsequent treatment thereby enter E.164, or to think called be another network user, carries out subsequent treatment thereby enter the intercommunication outlet module.
In addition, in the above description, after the number translation module is translated E.164 number failure, E.164 conversation request can arrive the heterogeneous network interworking module, can also arrive the intercommunication outlet module from intercommunication selection strategy module, the reason that a kind of situation in back occurs is: the called network of caller network selecting is called subscriber's home network (being the called network that lands) not necessarily, but a combining network also will pass through the home network that combining network could arrive the called subscriber.Call out the user of the A of U.S. operator such as Chinese user, the network of China may differ and directly choose the network of the A of operator surely, but can only choose an international combining network of the U.S., choose the network of the A of operator again through this international combining network.
In the above description, during the destination Mobile Station International ISDN Number translation failure of the E.164 form of caller network in conversation request, by the number analysis strategy of intercommunication selection strategy module, thereby this conversation request is sent to the called network (intercommunication inlet module) of this destination Mobile Station International ISDN Number correspondence.In addition, also have a kind of method not adopt E.164 number analysis, just this conversation request can be sent to the called network of destination Mobile Station International ISDN Number correspondence.
The E.164 destination Mobile Station International ISDN Number of form is inquired about in the session control module request of caller network, though inquiry is less than the group character of correspondence, but can obtain the domain name of this destination Mobile Station International ISDN Number place network, destination Mobile Station International ISDN Number as conversation request is " 001-212-5552222 ", though at " smith@home.net " of caller network inquiry less than correspondence, but can inquire the domain name " home.net " of this number place network, network based this domain name of caller, just the session request can be routed to this domain name place network (intercommunication outlet module or intercommunication inlet module) or corresponding E.164 heterogeneous network interworking module, also can think that intercommunication selection strategy module 106 is arranged in the session control module this moment, and intercommunication selection strategy module 106 is according to the definite direction to called route of called place domain names.In fact, as previously mentioned, when the destination Mobile Station International ISDN Number in the conversation request that the intercommunication selection strategy module 118 in called network is received is the group character of E.164 heterogeneous network support, also has this function.
Promptly, intercommunication selection strategy module is according to the direction of the called number strategy being determined to called route, perhaps be sent to corresponding E.164 heterogeneous network interworking module or intercommunication outlet module, perhaps be sent to called network and further determined the direction of route again by called network again, described strategy is according to being E.164 number or called place domain names.In addition, need to prove, intercommunication outlet module, intercommunication inlet module exist for outlet, the inlet as present networks, if network does not need to be provided with such going out/go into the critical point, then the caller network can pass through intercommunication outlet module and/or intercommunication inlet module to the conversation request that called network sends.
Fig. 2 is the flow chart according to addressing method between packet domain of the present invention.As shown in Figure 2, addressing method may further comprise the steps between packet domain:
Addressing method may further comprise the steps between packet domain of the present invention:
Step S202, the caller packet network is changed by the called number of the E.164 form in 102 pairs of conversation request that receive of number translation database, if convert failed, then will carrying E.164, the conversation request of the called number of form is sent to called packet network.
Step S204, called packet network is changed by the called number of the E.164 form in 104 pairs of conversation request of number translation database, if change successfully and the called IMS of being user, then carry out subsequent treatment by the session control module in the called packet network, if change successfully and called be E.164 heterogeneous network user or convert failed, then carry out subsequent treatment by E.164 heterogeneous network interworking module in the called packet network or intercommunication outlet module.
In step S202, when convert failed, conversation request is sent to the intercommunication selection strategy module in the caller packet network, and intercommunication selection strategy module is sent to called network according to the called number strategy with the session request, i.e. E.164 heterogeneous network interworking module or intercommunication outlet module.
Wherein, the called number strategy is at least following a kind of: E.164 number, called place domain names.The number translation database E.164 called number of form converts group character to.
Can initiate conversion request to the number translation database by the number translated module.The number translated module is in following: the intercommunication inlet module in the called packet network, session control module and intercommunication selection strategy module.The number translated module also can be a standalone module in the called packet network.Can be arranged in intercommunication inlet module, session control module or the intercommunication selection strategy module of packet network for the number translated module of standalone module.
In the present invention, the caller packet network is by E.164 number is to conversation request of called initiation, and the caller packet network is behind translation failure, and this conversation request is routed to called packet network and carries out E.164 number translation once more, obtaining corresponding group character, thereby carry out correct route.
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. addressing system between a packet domain is characterized in that comprising:
The caller packet network is used for the session request is sent to called packet network,
Described conversation request comprises the E.164 called number of form; And
Described called packet network, comprise the number translated module, be used for to the conversion request of number translation database initiation the called number of the E.164 form of described conversation request, change successfully and the called IMS of being user's situation under, carry out subsequent treatment by the session control module in the described called packet network, change successfully and called be under the situation of E.164 heterogeneous network user or convert failed, carry out subsequent treatment by E.164 heterogeneous network interworking module in the described called packet network or intercommunication outlet module.
2. addressing system between packet domain according to claim 1 is characterized in that, described number translation database converts the called number of described E.164 form to group character.
3. addressing system between packet domain according to claim 1 is characterized in that, described number translated module is in following: the intercommunication inlet module in the described called packet network, session control module and intercommunication selection strategy module.
4. according to addressing system between claim 2 or 3 described packet domain, it is characterized in that,
Described number translated module is a standalone module in the described called packet network.
5. addressing system between packet domain according to claim 4 is characterized in that, described number translated module is arranged in intercommunication inlet module, session control module or the intercommunication selection strategy module of described packet network.
6. addressing method between a packet domain is characterized in that may further comprise the steps:
Step S202, the caller packet network is changed the called number of the E.164 form in the conversation request that receives by the number translation database, if convert failed, the conversation request that then will carry the called number of described E.164 form is sent to called packet network; And
Step S204, described called packet network is changed the called number of the E.164 form in the described conversation request by the number translation database, if change successfully and the called IMS of being user, then carry out subsequent treatment by the session control module in the described called packet network, if change successfully and called be E.164 heterogeneous network user or convert failed, then carry out subsequent treatment by E.164 heterogeneous network interworking module in the described called packet network or intercommunication outlet module.
7. addressing method between packet domain according to claim 6 is characterized in that, in step S202:
Under the situation of described convert failed, described conversation request is sent to the intercommunication selection strategy module in the caller packet network, and described intercommunication selection strategy module is sent to described called network according to the called number strategy with described conversation request.
8. addressing method between packet domain according to claim 7 is characterized in that, described called number strategy is at least following a kind of: E.164 number, called place domain names.
9. addressing method between packet domain according to claim 6 is characterized in that, described number translation database converts the called number of described E.164 form to group character.
10. addressing method between packet domain according to claim 6 is characterized in that, initiates conversion request by the number translated module to described number translation database.
11. addressing method between packet domain according to claim 10 is characterized in that, described number translated module is in following: the intercommunication inlet module in the described called packet network, session control module and intercommunication selection strategy module.
12. addressing method between packet domain according to claim 11 is characterized in that, described number translated module is a standalone module in the described called packet network.
13. addressing method between packet domain according to claim 12 is characterized in that, described number translated module is arranged in intercommunication inlet module, session control module or the intercommunication selection strategy module of described called packet network.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610112255 CN101094172A (en) | 2006-06-19 | 2006-08-29 | Addressing system and method between packet domains |
| PCT/CN2007/070129 WO2008000176A1 (en) | 2006-06-19 | 2007-06-18 | Ims network and routing method in ims network |
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| CN200610082888.3 | 2006-06-19 | ||
| CN200610082888 | 2006-06-19 | ||
| CN 200610112255 CN101094172A (en) | 2006-06-19 | 2006-08-29 | Addressing system and method between packet domains |
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| CN103703803A (en) * | 2013-08-26 | 2014-04-02 | 华为技术有限公司 | Network device addressing method, apparatus and system |
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| CN113497764B (en) * | 2021-08-02 | 2023-04-07 | 中国电信股份有限公司 | Service routing method, system, computer storage medium and electronic device |
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| WO2003001836A1 (en) * | 2001-06-20 | 2003-01-03 | Nokia Corporation | System, device and method for providing call forwarding in dual subscription mode |
| GB0422275D0 (en) * | 2004-10-07 | 2004-11-10 | Nokia Corp | Callback services in a communication system |
| CN100372342C (en) * | 2004-11-08 | 2008-02-27 | 华为技术有限公司 | Method for providing service to circuit field user via group field |
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| CN103703803A (en) * | 2013-08-26 | 2014-04-02 | 华为技术有限公司 | Network device addressing method, apparatus and system |
| US9843981B2 (en) | 2013-08-26 | 2017-12-12 | Huawei Technologies Co., Ltd. | Network device addressing method, device, and system |
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