CN1870777A - Method, network and equipment for selecting called route - Google Patents
Method, network and equipment for selecting called route Download PDFInfo
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- CN1870777A CN1870777A CNA200610058158XA CN200610058158A CN1870777A CN 1870777 A CN1870777 A CN 1870777A CN A200610058158X A CNA200610058158X A CN A200610058158XA CN 200610058158 A CN200610058158 A CN 200610058158A CN 1870777 A CN1870777 A CN 1870777A
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Abstract
This invention discloses a method for selecting called route, a waireless network, a media gateway control entity and a network domain selection entity, in which, the method includes: when MGCF receives a call from a circuit domain, it enquires if the URI of a called terminal is in the call, if not, then the call is connected to the circuit domain again to finish the route in the domain, which can meet the need of called route of dual-mode terminal and that of single-mode terminal.
Description
Technical field
The present invention relates to field of wireless, particularly relate to a kind of method, wireless network, media gateway controlling entity and network domains of called route selected and select entity.
Background technology
At 3GPP2 tissue, the current interoperability problem that IMS territory and CDMA 1X network are being discussed has increased by three network entities in current IMS territory, reference model as shown in Figure 1:
Three newly-increased entities are:
NeDS: the calling of route SIP network or PSTN is nullified the registration at CDMA1x to the terminal in the CDMA1x registration when terminal is carried out the SIP registration.For the CDMA1x network, the similar MSC/VLR entity of NeDS.Terminal IMS territory registration and the registration of CDMA1x circuit domain all can be in NeDs record.Can know that by NeDS current terminal is at the CDMA1x network registry or in the registration of the IMS territory of HRPD (high rate packet data) HRPD.
Call continuity controlled entity CCCF: support of the switching of HRPD/WLAN voip conversation to the CDMA1x circuit-switched session.
SMS-GW: storage and forwarding short message.Endpoint registration is in the IMS territory, then with the HRPD network interaction.Terminal the CDMA1x network registry then with the 1x network interaction.
The proposition of this model is the user for the bimodulus hybrid terminal of supporting to use CDMA2000 EVDO and CDMA2000 1X or WLAN and 1x, solves the problem of aspects such as registration, called route, cross-domain switching, short message transmission.
In addition, the ENUM technology is the focus of computer nowadays Internet resources addressing locate mode, and it is to follow unification of three nets, and the development of network communications technology and demand is arisen at the historic moment.E.164 its employing meets, and standard telephone number adopts DNS technology and operation frame, for the user provides analysis service easily as the inlet of user communication.The user can adopt telephone number to finish the addressing location of VoIP, and the HTTP visit, Email, and directory service or the like network application, and finish restrict access, inquiry are redirected or the like a series of functions.
Use above-mentioned network, and terminal called is when being dual-mode terminal, the network architecture of called route is referring to shown in Figure 2.As can be seen from Figure 2, PSTN/PLMN and other SIP networks all are the IMS territory entities that is connected to the user attaching network, and promptly user's called inlet is defined as user's IMS territory.
When caller makes a call from PSTN or PLMN, and the called subscriber is when being registered in circuit domain, and concrete call flow diagram comprises the following steps: referring to shown in Figure 3
1.PSTN/PLMN network sends IAM message to MGCF, routes the call to the IMS territory;
Send to called affiliated I/S-CSCF 2.MGCF be converted to SIP call signaling INVITE;
3 and 4.I/S-CSCF according to called subscriber's initial filter criteria iFC triggering rule calling is toggled to NeDS/CCCF;
5.NeDS the login state according to the user carries out routing decision, the user is registered in circuit domain in this example, and then NeDS goes to the inquiring user position to subscriber line circuit territory attaching position register HLR;
6.HLR to user visiting territory MSC/VLR application user roaming number;
7.MSC/VLR return to HLR after the distribution roaming number;
8.HLR roaming number is returned to NeDS;
9 and 10.NeDS/CCCF send call re-direction order 302 message according to roaming number to I/S-CSCF;
11.I/S-CSCF will call out and re-route to MGCF according to the roaming number after the changed course;
Since 12 steps, be exactly a common called process of circuit domain;
When caller makes a call from PSTN or PLMN, and the called subscriber is when being registered in the IMS territory, and concrete call flow diagram comprises the following steps: referring to shown in Figure 4
1.PSTN/PLMN send IAM message to MGCF, route the call to the IMS territory;
Send to called affiliated I/S-CSCF 2.MGCF be converted to SIP call signaling INVITE;
3 and 4.I/S-CSCF according to called subscriber's iFC triggering rule calling is toggled to NeDS/CCCF;
5.NeDS the login state according to the user carries out routing decision, the user is registered in the IMS territory in this example, and then NeDS goes to confirm User Status to user IMS territory HSS;
6.HSS that returns the user has registration at HSS really;
7 and 8.NeDS/CCCF notice I/S-CSCF user just register in the IMS territory, require the I/S-CSCF user that continues in this territory, IMS territory;
Since the 9th step, be exactly common IMS territory user's called flow.
The calling that to be calling terminal initiate from PSTN or PLMN of the basis of such scheme all needs at first to route to the IMS territory at called subscriber place, and entity NeDS carries out routing decision by the IMS territory.Set up for terminal called is dual-mode terminal on this basis, but the single-mode terminal that also has a large amount of traditional circuit domains at present simultaneously, for these single-mode terminal no matter be that HSS or NeDS do not have relative recording, if terminal called is a single-mode terminal, and call out and to be routed to HSS or NeDS, then can interrupt call continues because of the no user data.
And, because calling terminal is the calling from PSTN or PLMN initiation, the MSC of caller network does not judge whether terminal called is the ability of single-mode terminal, can only carry out number analysis according to called number, the number that so just defines the dual-mode terminal user must be in the special section, and this number section planning to operator has had restriction.
Existing in sum scheme has only solved the called routing issue of dual-mode terminal, and the compatibility of traditional single-mode terminal is not paid attention to.
Summary of the invention
The invention provides a kind of method, wireless network, media gateway controlling entity and network domains of called route selected and select entity, in order to solve the called routing issue that existing scheme has solved dual-mode terminal, but when causing terminal called to be single-mode terminal, can't finish the problem of call proceeding.
The inventive method comprises:
Media gateway controlling entity MGCF receives the calling from circuit domain; Whether the MGCF inquiry exists the universal resource identifier URI information of terminal called, if do not exist, then described calling is routed to circuit domain again, and finishes route in circuit domain.
Calling terminal is from the calling of Public Switched Telephone Network PSTN or public land mobile radio communication PLMN initiation.
If described calling at first is routed to the circuit-domain network of callee side, then this calling is routed to MGCF by the callee side gateway exchange GMSC of mobile switching centre; If described calling at first is routed to the IMS territory, then this calling directly is routed to MGCF.
Whether MGCF exists the URI information of terminal called to the inquiry of number mapping server ENUM E.164.
MGCF is converted to called number tel URI and sends to query call conversation control function entity I-CSCF; The URI information that whether has terminal called again by I-CSCF to home signature user server HSS inquiry.
Described will the calling is routed to circuit domain again, comprises the following steps: that MGCF sends to change before carrying to Calling Side network or callee side GMSC to indicate and the release message of transferred number; Calling Side network or callee side GMSC arrive circuit domain according to preceding commentaries on classics indication and transferred number with described call proceeding.
Perhaps, described will the calling is routed to circuit domain again, comprises the following steps: that MGCF sends the call setup relaying signaling that comprises special prefix and called number to Calling Side network or callee side GMSC; Calling Side network or callee side GMSC arrive circuit domain according to special prefix and called number with described call proceeding.
Perhaps, described will the calling is routed to circuit domain again, comprises the following steps: that the MGCF structure carries the conversation request message of special identifier, and sends to network domains selection entity NeDS; After NeDS discerns described special identifier, directly inquire about the roaming number of terminal called to attaching position register HLR; NeDS is again to the MGCF initiation session, and the called identification in this session is described roaming number; MGCF is routed directly to calling according to the roaming number of receiving the VMSC at terminal called place; Perhaps, MGCF sends to change before carrying to Calling Side network or callee side GMSC and indicates and the release message of roaming number, and will be called out by Calling Side network or callee side GMSC and be routed to VMSC again; Perhaps, MGCF sends the call setup relaying signaling that comprises special prefix and roaming number to Calling Side network or callee side GMSC, and will be called out by Calling Side network or callee side GMSC and be routed to VMSC again.
Perhaps, if MGCF and callee side GMSC merge into an equipment, then described will the calling is routed to circuit domain again, comprises the following steps: that described merging equipment directly inquires about the roaming number of terminal called to HLR; Described merging equipment is routed directly to calling according to the roaming number of receiving the VMSC at terminal called place.
Perhaps, described will the calling is routed to circuit domain again, comprises the following steps: that then MGCF directly routes the call to callee side GMSC if callee side GMSC links to each other with the Calling Side network by MGCF; Callee side GMSC arrives circuit domain with described call proceeding.
If there is the URI information of terminal called, then directly finish the route of this calling in the IMS territory.
Media gateway controlling entity of the present invention, comprise: signaling conversion process module, and the relaying signaling processing module, SIP signaling processing module, the ENUM signaling processing module that link to each other with described signaling conversion process module respectively, also comprise: the single-mode terminal processing module, be used for judging according to ENUM signaling or the SIP signaling received whether terminal called is single-mode terminal, if send after then calling being handled accordingly, so that described calling is routed to circuit domain again.
Comprise following submodule in the described single-mode terminal processing module: judge submodule, be used for basis and send, and judge by the signaling that signaling conversion process module forwards is come whether terminal called is single-mode terminal by SIP signaling processing module or ENUM signaling processing module.
Also comprise following arbitrary submodule in the described single-mode terminal processing module:
First processing sub is used for after described judge module judges that terminal called is single-mode terminal, changes indication and transferred number before adding in release message, and sends to Calling Side network or callee side GMSC by the relaying signaling processing module;
Second processing sub is used for after described judge module judges that terminal called is single-mode terminal, interpolation special prefix and called number in call setup relaying signaling, and pass through the relaying signaling processing module to Calling Side network or callee side GMSC transmission;
The 3rd processing sub, be used for after described judge module judges that terminal called is single-mode terminal, calling is configured to carry the conversation request message of special identifier, and it is routed to the IMS territory by the SIP signaling processing module, obtaining the roaming number of terminal called, and route the call to the VMSC at terminal called place according to roaming number;
Manages submodule everywhere, be used for when described media gateway controlling entity has the function of GMSC, and after described judge module judges that terminal called is single-mode terminal, directly obtain the roaming number of terminal called, and route the call to the VMSC at terminal called place according to roaming number;
The 5th processing sub is used for directly described calling being routed to callee side GMSC by the relaying signaling processing module after described judge module judges that terminal called is single-mode terminal.
Network domains of the present invention is selected entity, comprise: logging modle, be used to write down terminal in the IMS territory with at the log-on message of CDMA1x circuit domain, it is characterized in that, described network domains selects entity NeDS also to comprise: identification module, be used for discerning the conversation request message that MGCF sends and whether carry special identifier,, then make NeDS directly to the roaming number of HLR inquiry terminal called if carry special identifier.
Wireless network of the present invention comprises: above-mentioned media gateway controlling entity.Also comprise: above-mentioned network domains is selected entity.
Beneficial effect of the present invention is as follows:
The present invention is after the calling that calling terminal is initiated from PSTN or PLMN, no matter the callee side entrance network element is GMSC or MGCF, all at first route the call to MGCF, rather than according to the flow process that continues in available circuit territory, to the positional information that HLR removes to inquire about terminal called, can avoid terminal called like this when HLR has registration, HLR can remove to apply for roaming number to the MSC of user visiting, cause calling out and unconditionally continue, thereby make the called Route Selection of dual-mode terminal lose meaning from circuit domain.
And after calling all is routed to MGCF,, do not have user URI record in the IMS territory if called subscriber's use is single-mode terminal, then can cause call failure.The present invention can avoid occurring this situation.
After MGCF receives described calling, inquire about the URI information that whether has terminal called,, judge that then terminal called is a single-mode terminal if MGCF receives failure response (being that terminal called does not have log-on message in the IMS territory) to E.164 Number server; Otherwise the judgement terminal called is a dual-mode terminal, and routes the call to the IMS territory, according to the called routing plan of existing dual-mode terminal, selects route by NeDS.Perhaps, after MGCF receives described calling, directly route the call in the IMS territory, by the URI information (log-on message) of I-CSCF to HSS inquiry terminal called, if inquiry failure, then I-CSCF can send failure response to MGCF, and after MGCF received described failure response, the judgement terminal called was a single-mode terminal; Otherwise,, select route by NeDS according to the called routing plan of existing dual-mode terminal.
After MGCF judgement terminal called is single-mode terminal (being the log-on message that the IMS territory does not have terminal called), MGCF adopts one of following five kinds of modes, and described calling is routed to circuit domain again, and makes this calling finish route in circuit domain.Mode one: MGCF sends to change before carrying to Calling Side network or callee side GMSC and indicates and the release message of transferred number; Calling Side network or callee side GMSC arrive circuit domain according to preceding commentaries on classics indication and transferred number with described call proceeding.Mode two: MGCF sends the call setup relaying signaling that comprises special prefix and called number to Calling Side network or callee side GMSC; Calling Side network or callee side GMSC arrive circuit domain according to special prefix and called number with described call proceeding.After mode three: NeDS identifies the conversation request message that carries special identifier that MGCF sends, directly to the roaming number of attaching position register HLR inquiry terminal called; NeDS is again to the MGCF initiation session, and the called identification in this session is described roaming number; MGCF is routed directly to calling according to the roaming number of receiving the VMSC at terminal called place; Perhaps, according to mode one or mode two circuit domain is arrived in call proceeding.Mode four: if MGCF and callee side GMSC merge into an equipment, then described merging equipment is directly inquired about the roaming number of terminal called to HLR; Described merging equipment is routed directly to calling according to the roaming number of receiving the VMSC at terminal called place.Mode five: if callee side GMSC links to each other with the Calling Side network by MGCF, then MGCF directly routes the call to callee side GMSC; Callee side GMSC arrives circuit domain with described call proceeding.
In order to support the inventive method, the present invention also provides a kind of MGCF, comprise: signaling conversion process module, and the single-mode terminal processing module of the relaying signaling processing module that links to each other with described signaling conversion process module respectively, SIP signaling processing module, ENUM signaling processing module and the present invention's interpolation.Described single-mode terminal processing module is used for judging according to ENUM signaling or the SIP signaling received whether terminal called is single-mode terminal, if send after then calling being handled accordingly, so that described calling is routed to circuit domain again; Otherwise described calling directly continues in the IMS territory.
The present invention also provides a kind of NeDS, is used to cooperate the realization that described calling is routed to again the mode three of circuit domain.
Above-mentioned MGCF is applied in the wireless network, and the present invention provides a kind of wireless network again.Further also can add above-mentioned NeDS in this wireless network.
By enforcement of the present invention, it is the judgement of single mode or bimodulus that MGCF has finished terminal called; Afterwards, MGCF can be routed to the suitable network territory with described calling targetedly according to judged result.So not only kept the selectivity of the called routing plan of existing dual-mode terminal, embodied the advantage of dual-mode terminal, and taken into account the long-term co-existence of single-mode terminal in existing network called route.
Description of drawings
Fig. 1 is IMS territory and CDMA1X circuit domain interoperability illustraton of model;
Fig. 2 is the network architecture schematic diagram of present 3GPP2 standard;
Fig. 3 is registered in the called route flow chart of dual-mode terminal of circuit domain for present user;
Fig. 4 is registered in the called route flow chart of dual-mode terminal in IMS territory for present user;
Fig. 5 is the structural representation of MGCF of the present invention;
Fig. 6 is a single-mode terminal processing module internal structure schematic diagram;
Fig. 7 is the structural representation of NeDS of the present invention;
Fig. 8 is the inventive method flow chart of steps;
Fig. 9 is the called route flow chart of method example one;
Figure 10 is the called route flow chart of method example two;
Figure 11 is the called route flow chart of method example three;
Figure 12 is the called route flow chart of method example four;
Figure 13 is the called route flow chart of method example five;
Figure 14 is the called route flow chart of method example six;
Figure 15 is the called route flow chart of method example seven;
Figure 16 is the called route flow chart of method example eight;
Figure 17 is the called route flow chart of method example nine.
Embodiment
For the called routing plan that kept existing dual-mode terminal selectivity to called route, but also to take into account the called route of single-mode terminal, the invention provides a kind of MGCF, referring to shown in Figure 5, it comprises: signaling conversion process module, and the relaying signaling processing module, SIP signaling processing module, ENUM signaling processing module and the single-mode terminal processing module that link to each other with described signaling conversion process module respectively.
Described relaying signaling processing module is used to receive incoming call, and is transmitted to signaling conversion process module, and the signaling that signaling conversion process module is sent is sent to Calling Side network or callee side GMSC.This module forwards and the signaling type that sends comprise: ISUP signaling, TUP signaling (Telephone User Part), and BICC signaling (Bearer Independent Call Control).
Described SIP signaling processing module, being used for the terminal called information translation is the SIP signaling, and sends to the IMS territory, and the SIP signaling (for example: 404 respond) that send in the IMS territory is sent to signaling conversion process module.
Described ENUM signaling processing module is used for that ENUM is inquired about signaling and sends to E.164 Number server, and the feedback signaling of E.164 Number server is sent to signaling conversion process module.
Described signaling conversion process module, be used for the signaling that SIP signaling processing module and ENUM signaling processing module are sent is forwarded to the single-mode terminal processing module, and according to the result of single-mode terminal processing module feedback, by the relaying signaling processing module circuit domain is arrived in call proceeding, perhaps the IMS territory is arrived in call proceeding by the SIP signaling processing module.
Described single-mode terminal processing module is used for the signaling of coming according to signaling conversion process module forwards, judges whether terminal called is single-mode terminal, and after calling handled accordingly, result is fed back to signaling conversion process module.
Further, referring to shown in Figure 6, described single-mode terminal processing module inside comprises: first processing sub, second processing sub, the 3rd processing sub, an arbitrary submodule of managing everywhere in submodule and the 5th processing sub, and coupled judgement submodule.
Described judgement submodule is used for basis and is sent by SIP signaling processing module or ENUM signaling processing module, and judges by the signaling that signaling conversion process module forwards is come whether terminal called is single-mode terminal.
Described first processing sub is used for after described judge module judges that terminal called is single-mode terminal, changes indication and transferred number before adding in release message, and sends to Calling Side network or callee side GMSC by the relaying signaling processing module.
Described second processing sub is used for after described judge module judges that terminal called is single-mode terminal, interpolation special prefix and called number in call setup relaying signaling, and pass through the relaying signaling processing module to Calling Side network or callee side GMSC transmission.
Described the 3rd processing sub, be used for after described judge module judges that terminal called is single-mode terminal, calling is configured to carry the conversation request message of special identifier, and it is routed to the IMS territory by the SIP signaling processing module, obtaining the roaming number of terminal called, and route the call to the VMSC at terminal called place according to roaming number.
Described manages submodule everywhere, be used for when described MGCF has the function of GMSC, and after described judge module judges that terminal called is single-mode terminal, directly obtain the roaming number of terminal called, and route the call to the VMSC at terminal called place according to roaming number.
Described the 5th processing sub is used for directly described calling being routed to callee side GMSC by the relaying signaling processing module after described judge module judges that terminal called is single-mode terminal.
Also can adopt following replacement scheme for MGCF of the present invention, be that the single-mode terminal processing module directly links to each other with signaling conversion process module, relaying signaling processing module, SIP signaling processing module and ENUM signaling processing module, so just need not signaling conversion process module and come transmitting signaling, other functions of each module all do not change.
In order to cooperate the function of above-mentioned the 3rd processing sub, the present invention provides a kind of NeDS again, and referring to shown in Figure 7, it comprises: logging modle and identification module.
Described logging modle is used to write down terminal in the IMS territory with at the log-on message of CDMA1x circuit domain.
Described identification module is used for discerning the conversation request message that MGCF sends and whether carries special identifier, if carry special identifier, then makes NeDS directly to the roaming number of HLR inquiry terminal called.
Above-mentioned MGCF is applied to relate in the wireless network in circuit domain and IMS territory, is wireless network of the present invention.Further also can comprise above-mentioned NeDS.
Use above-mentioned wireless network and equipment, the invention provides a kind of method of selecting called route,, comprise following key step referring to shown in Figure 8:
The calling that S1, calling terminal are initiated from circuit domain.
S2, route the call to MGCF.
Whether S3, MGCF inquiry exists the URI information of terminal called, if do not exist, then changes step S4 over to; Otherwise, change step S5 over to.
S4, described calling is routed to circuit domain again, and finishes route in circuit domain.
S5, finish the route of this calling in the IMS territory.
Below specifically describe the inventive method by nine examples.
Method example one: MGCF carries out the ENUM inquiry, and terminal called is a dual-mode terminal, and the called network entrance network element is GMSC.Referring to shown in Figure 9, comprise following concrete steps:
The calling that S101, calling terminal are initiated from circuit domain.
Calling terminal is from the calling of PSTN or PLMN initiation.
S102, route the call to MGCF.
1. the caller network routes the call to the GMSC of callee side network; (1.ISUP:IAM (CldNumber=E.164 Number))
2. callee side GMSC routes the call to MGCF.(2.ISUP：IAM(Cld?Number＝E.164Number))
Whether S103, MGCF inquiry exists the URI information of terminal called, if do not exist, then changes step S104 over to; Otherwise, change step S105 over to.
3.MGCF inquire about to E.164 Number server; (3.ENUM Qurey)
4. because the called subscriber is the dual-mode terminal user, at E.164 Number server record is arranged, then E.164 Number server has returned user's URI; (4.ENUM Response (UE1 ' s URI))
5.MGCF the URI structure INVITE signaling according to the user routes the call to IMS territory (promptly changing step S105 over to).(5.SIP：INVITE(To：UE1′s?URI))
S104, described calling is routed to circuit domain again, and finishes route in circuit domain.
S105, finish the route of this calling in the IMS territory.
Finish the calling route with the called routing plan of the dual-mode terminal of standard.
Method example two: MGCF does not carry out the ENUM inquiry, and terminal called is a dual-mode terminal, and the called network entrance network element is GMSC.Referring to shown in Figure 10, comprise following concrete steps:
The calling that S201, calling terminal are initiated from circuit domain.(S101 is identical with step)
S202, route the call to MGCF.(S102 is identical with step)
Whether S203, MGCF inquiry exists the URI information of terminal called, if do not exist, then changes step S204 over to; Otherwise, change step S205 over to.
Send to I-CSCF 3.MGCF directly construct INVITE, the telURI form of filling in the called subscriber in the message is number E.164; (3.SIP:INVITE (To:E.164 Numer of UE1))
4.I-CSCF to HSS inquiring user state; (4.Cx:Query)
5. because the called subscriber is the dual-mode terminal user, then among the HSS user record is arranged, HSS can return the S-CSCF address of user's registration; (5.Cx:Query Response (S-CSCF Name))
6.I-CSCF route the call to S-CSCF (promptly changing step S205 over to).(6.SIP：INVITE(To：E.164?Numer?of?UE1))
S204, described calling is routed to circuit domain again, and finishes route in circuit domain.
S205, finish the route of this calling in the IMS territory.(S105 is identical with step)
Method example three: MGCF carries out the ENUM inquiry, and terminal called is a single-mode terminal, and the called network entrance network element is GMSC, returns the caller network by special IAM message.Referring to shown in Figure 11, comprise following concrete steps:
The calling that S301, calling terminal are initiated from circuit domain.(S101 is identical with step)
S302, route the call to MGCF.(S102 is identical with step)
Whether S303, MGCF inquiry exists the URI information of terminal called, if do not exist, then changes step S304 over to; Otherwise, change step S305 over to.
3.MGCF inquire about to E.164 Number server; (3.ENUM Qurey)
4. because the called subscriber is traditional single-mode terminal user, do not have record at E.164 Number server, then E.164 Number server has returned failure response (promptly changing step S304 over to); (4.ENUM Response (failure))
S304, described calling is routed to circuit domain again, and finishes route in circuit domain.
5.MGCF receive and do not return failure to GMSC after the failure response, but resend an IAM message to GMSC, the called number in the message is to add a special prefix before the Subscriber Number, as: 999 and so on number; (5.IAM (Cld Number=prefix+E.164 Number))
6.GMSC receive after the IAM message that has special prefix, know that by number analysis this message is directly to continue by circuit domain, so go to HLR inquiring user position according to removing the called number that obtains after the prefix.(6.MAP：LOCREQ)
Follow-up then is the called process of circuit domain user of standard.
S305, finish the route of this calling in the IMS territory.
Method example four: MGCF does not carry out the ENUM inquiry, and terminal called is a single-mode terminal, and the called network entrance network element is GMSC, returns the caller network by special IAM message.Referring to shown in Figure 12, comprise following concrete steps:
The calling that S401, calling terminal are initiated from circuit domain.(S101 is identical with step)
S402, route the call to MGCF.(S102 is identical with step)
Whether S403, MGCF inquiry exists the URI information of terminal called, if do not exist, then changes step S404 over to; Otherwise, change step S405 over to.
Send to I-CSCF 3.MGCF directly construct INVITE, the telURI form of filling in the called subscriber in the message is number E.164; (3.SIP:INVITE (To:E.164 Numer of UE1))
4.I-CSCF to HSS inquiring user state; (4.Diameter:LIR)
5. because the called subscriber is traditional single-mode terminal user, then do not have user record among the HSS, HSS can return the response of " unknown subscriber "; (5.Diameter:LIA (User Unknown))
6.I-CSCF return the sip response (promptly changing step S404 over to) of 404 Not Found to MGCF; (6.SIP:404 Not Found)
S404, described calling is routed to circuit domain again, and finishes route in circuit domain.
7.MGCF receive after 404 responses that do not return failure to GMSC, but resend an IAM message to GMSC, the called number in the message is to add a special prefix before the Subscriber Number, as: 999 and so on number; (7.ISUP:IAM (Cld Number=Prefix+E.164 Number of UE))
8.GMSC receive after the IAM message that has special prefix, know that by number analysis this message is directly to continue by circuit domain, so go to HLR inquiring user position according to removing the called number that obtains after the prefix; (8.MAP:LOCREQ)
Follow-up then is the called process of circuit domain user of standard.
S405, finish the route of this calling in the IMS territory.
Method example five: MGCF carries out the ENUM inquiry, and terminal called is a single-mode terminal, and the called network entrance network element is MGCF, returns the caller network by special IAM message.Referring to shown in Figure 13, comprise following concrete steps:
The calling that S501, calling terminal are initiated from circuit domain.(S101 is identical with step)
S502, route the call to MGCF.
1. the caller network routes the call to the MGCF of called network.(1.ISUP：IAM(CldNumber＝E.164?Number))
Whether S503, MGCF inquiry exists the URI information of terminal called, if do not exist, then changes step S504 over to; Otherwise, change step S505 over to.
2.MGCF remove E.164 Number server inquiry called subscriber URI according to the called number of receiving; (2.ENUM Qurey)
3. because the called subscriber is the single-mode terminal user, then do not have user record in the E.164 Number server, can return the response (promptly changing step S504 over to) of " inquiry failure "; (3.ENUM Response (failure))
S504, described calling is routed to circuit domain again, and finishes route in circuit domain.
4.MGCF receive after the failure response, do not return failure, but resend an IAM message for the caller network to the caller network, the called number in the message is to add a special prefix before the Subscriber Number, the number as 999 and so on; (4.ISUP:IAM (Cld Number=prefix+E.164 Number))
5. the caller network is received after the IAM message that has special prefix, knows that by number analysis this message is directly to continue by circuit domain, again calling is forwarded to GMSC after the prefix of dieing; (5.ISUP:IAM (Cld Number=E.164 Number))
6.GMSC receive to call out and reach user's roaming number to HLR afterwards; (6.MAP:LOCREQ)
Follow-up then is the called process of circuit domain user of standard.
S505, finish the route of this calling in the IMS territory.
Method example six: MGCF carries out the ENUM inquiry, and terminal called is a single-mode terminal, and the called network entrance network element is MGCF, returns the caller network by special release message.Referring to shown in Figure 14, comprise following concrete steps:
The calling that S601, calling terminal are initiated from circuit domain.(S101 is identical with step)
S602, route the call to MGCF.(S502 is identical with step)
Whether S603, MGCF inquiry exists the URI information of terminal called, if do not exist, then changes step S604 over to; Otherwise, change step S605 over to.(S503 is identical with step)
S604, described calling is routed to circuit domain again, and finishes route in circuit domain.
4.MGCF receive after the failure response, do not return common release message, but change indication parameter and a transferred number parameter before in release message REL, adding one to the caller network, what transferred number was filled in is the number that adds the called subscriber of special prefix; (4.ISUP:REL (Redirection Ind+Redirection Num:prefix+E.164 Number))
5. change after the call release message of indication before the caller network is received and had, transferred number is carried out number analysis know that going to circuit domain before calling needs directly continues, and is forwarded to GMSC with calling after the prefix of dieing again; (5.ISUP:IAM (Cld Number=E.164 Number))
6.GMSC receive to call out and reach user's roaming number to HLR afterwards; (6.MAP:LOCREQ)
Follow-up then is the called process of circuit domain user of standard.
S605, finish the route of this calling in the IMS territory.
Method example seven: MGCF carries out the ENUM inquiry, and terminal called is a single-mode terminal, and the called network entrance network element is MGCF, directly is toggled to NeDS by the PSI mode.Referring to shown in Figure 15, comprise following concrete steps:
The calling that S701, calling terminal are initiated from circuit domain.(S101 is identical with step)
S702, route the call to MGCF.(S502 is identical with step)
Whether S703, MGCF inquiry exists the URI information of terminal called, if do not exist, then changes step S704 over to; Otherwise, change step S705 over to.(S503 is identical with step)
S704, described calling is routed to circuit domain again, and finishes route in circuit domain.
4.MGCF receive after the failure response, do not return common release message to the caller network, send to NeDS but construct the SIP conversation request message INVITE that carries special identifier by the mode of PSI; (4.SIP:INVITE (Request URI=tel URI))
5.NeDS receive after the SIP conversation request message, identify this message and carry special identifier, judge that then this user is not a dual-mode terminal, directly to HLR application roaming number; (5.MAP:LOCREQ)
6.HLR the visited MSC to the called subscriber place sends the message of getting roaming number; (6.MAP:ROUTREQ)
7.VMSC return roaming number; (7.MAP:routreq (TLDN))
8.HLR roaming number is returned to NeDS; (8.MAP:locreq (TLDN))
9.NeDS initiate the SIP session as B2BUA (Back to Back UserAgent, back-to-back user agent) again to MGCF, the CSI called subscriber identification in the session extends this as the roaming number TLDN that gets access to from HLR; (9.SIP:INVITE (Request URI=TLDN))
10.MGCF calling can be routed directly to the VMSC (10.ISUP:IAM (Cld Number=TLDN)) at called subscriber place according to the roaming number of receiving; Perhaps, MGCF sends to change before carrying to Calling Side network or callee side GMSC and indicates and the release message of roaming number, and will be called out by Calling Side network or callee side GMSC and be routed to VMSC again; Perhaps, MGCF sends the call setup relaying signaling that comprises special prefix and roaming number to Calling Side network or callee side GMSC, and will be called out by Calling Side network or callee side GMSC and be routed to VMSC again.
Follow-up then is the called process of traditional circuit domain user of standard.
S705, finish the route of this calling in the IMS territory.
Method example eight: MGCF carries out the ENUM inquiry, and terminal called is a single-mode terminal, and the called network entrance network element is MGCF, directly carries out call proceeding by GMSC.Referring to shown in Figure 16, comprise following concrete steps:
The calling that S801, calling terminal are initiated from circuit domain.(S101 is identical with step)
S802, route the call to MGCF.(S502 is identical with step)
Whether S803, MGCF inquiry exists the URI information of terminal called, if do not exist, then changes step S804 over to; Otherwise, change step S805 over to.(S503 is identical with step)
S804, described calling is routed to circuit domain again, and finishes route in circuit domain.
4.MGCF receive after the failure response, do not return release message to the caller network, if callee side GMSC links to each other with the Calling Side network by MGCF, then MGCF directly routes the call to callee side GMSC; (4.ISUP:IAM (Cld Number=E.164 Number))
5. callee side GMSC receives that the calling from MGCF reaches user's roaming number to HLR afterwards; (5.MAP:LOCREQ)
Follow-up then is the called process of circuit domain user of standard.
S805, finish the route of this calling in the IMS territory.
Method example nine: this routine MGCF and GMSC merge into an equipment, and MGCF carries out the ENUM inquiry, and terminal called is a single-mode terminal, and the called network entrance network element is MGCF, directly go the route of HLR inquiry called subscriber in circuit domain.Referring to shown in Figure 17, comprise following concrete steps:
The calling that S901, calling terminal are initiated from circuit domain.(S101 is identical with step)
S902, route the call to MGCF.(S502 is identical with step)
Whether S903, MGCF inquiry exists the URI information of terminal called, if do not exist, then changes step S904 over to; Otherwise, change step S905 over to.(S503 is identical with step)
S904, described calling is routed to circuit domain again, and finishes route in circuit domain.
4. merging equipment is received after the failure response, does not return release message to the caller network, but directly reaches user's roaming number to HLR; (4.MAP:LOCREQ)
Follow-up then is the called process of circuit domain user of standard.
S905, finish the route of this calling in the IMS territory.
ENUM query script in the method example five to nine can be replaced by MGCF and directly be routed the call to the IMS territory, comes by IMS territory HSS whether inquiring user is dual-mode terminal, and the result who returns according to the IMS territory judges whether the user is single-mode terminal then.Other steps are all identical.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (19)
1, a kind of method of selecting called route is characterized in that, comprises the following steps:
Media gateway controlling entity MGCF receives the calling from circuit domain;
Whether the MGCF inquiry exists the universal resource identifier URI information of terminal called, if do not exist, then described calling is routed to circuit domain again, and finishes route in circuit domain.
2, the method for claim 1 is characterized in that, calling terminal is from the calling of Public Switched Telephone Network PSTN or public land mobile radio communication PLMN initiation.
3, method as claimed in claim 2 is characterized in that, if described calling at first is routed to the circuit-domain network of callee side, then this calling is routed to MGCF by the callee side gateway exchange GMSC of mobile switching centre;
If described calling at first is routed to the IMS territory, then this calling directly is routed to MGCF.
4, the method for claim 1 is characterized in that, whether MGCF exists the URI information of terminal called to the inquiry of number mapping server ENUM E.164.
5, the method for claim 1 is characterized in that, MGCF is converted to telURI with called number and sends to query call conversation control function entity I-CSCF; The URI information that whether has terminal called again by I-CSCF to home signature user server HSS inquiry.
As each described method of claim 1 to 5, it is characterized in that 6, described will the calling is routed to circuit domain again, comprises the following steps:
-MGCF sends to change before carrying to Calling Side network or callee side GMSC and indicates and the release message of transferred number;
-Calling Side network or callee side GMSC arrive circuit domain according to preceding commentaries on classics indication and transferred number with described call proceeding.
As each described method of claim 1 to 5, it is characterized in that 7, described will the calling is routed to circuit domain again, comprises the following steps:
-MGCF sends the call setup relaying signaling that comprises special prefix and called number to Calling Side network or callee side GMSC;
-Calling Side network or callee side GMSC arrive circuit domain according to special prefix and called number with described call proceeding.
As each described method of claim 1 to 5, it is characterized in that 8, described will the calling is routed to circuit domain again, comprises the following steps:
-MGCF structure carries the conversation request message of special identifier, and sends to network domains selection entity NeDS;
After-NeDS discerns described special identifier, directly inquire about the roaming number of terminal called to attaching position register HLR;
-NeDS is again to the MGCF initiation session, and the called identification in this session is described roaming number;
-MGCF is routed directly to calling according to the roaming number of receiving the VMSC at terminal called place; Perhaps, MGCF sends to change before carrying to Calling Side network or callee side GMSC and indicates and the release message of roaming number, and will be called out by Calling Side network or callee side GMSC and be routed to VMSC again; Perhaps, MGCF sends the call setup relaying signaling that comprises special prefix and roaming number to Calling Side network or callee side GMSC, and will be called out by Calling Side network or callee side GMSC and be routed to VMSC again.
9, method as claimed in claim 8 is characterized in that, MGCF constructs conversation request message in public service identity PSI mode.
As each described method of claim 1 to 5, it is characterized in that 10, if MGCF and callee side GMSC merge into an equipment, then described will the calling is routed to circuit domain again, comprises the following steps:
-described merging equipment is directly inquired about the roaming number of terminal called to HLR;
-described merging equipment is routed directly to calling according to the roaming number of receiving the VMSC at terminal called place.
As each described method of claim 1 to 5, it is characterized in that 11, described will the calling is routed to circuit domain again, comprises the following steps:
-Ruo callee side GMSC links to each other with the Calling Side network by MGCF, and then MGCF directly routes the call to callee side GMSC;
-callee side GMSC arrives circuit domain with described call proceeding.
12, as each described method of claim 1 to 5, it is characterized in that,, then directly finish the route of this calling in the IMS territory if there is the URI information of terminal called.
13, a kind of media gateway controlling entity, comprise: signaling conversion process module, and the relaying signaling processing module, SIP signaling processing module, the ENUM signaling processing module that link to each other with described signaling conversion process module respectively, it is characterized in that described entity also comprises:
The single-mode terminal processing module is used for judging according to ENUM signaling or the SIP signaling received whether terminal called is single-mode terminal, if send after then calling being handled accordingly, so that described calling is routed to circuit domain again.
14, entity as claimed in claim 13 is characterized in that, comprises following submodule in the described single-mode terminal processing module:
Judge submodule, be used for basis and send, and judge by the signaling that signaling conversion process module forwards is come whether terminal called is single-mode terminal by SIP signaling processing module or ENUM signaling processing module.
15, entity as claimed in claim 14 is characterized in that, also comprises following arbitrary submodule in the described single-mode terminal processing module:
First processing sub is used for after described judge module judges that terminal called is single-mode terminal, changes indication and transferred number before adding in release message, and sends to Calling Side network or callee side GMSC by the relaying signaling processing module;
Second processing sub is used for after described judge module judges that terminal called is single-mode terminal, interpolation special prefix and called number in call setup relaying signaling, and pass through the relaying signaling processing module to Calling Side network or callee side GMSC transmission;
The 3rd processing sub, be used for after described judge module judges that terminal called is single-mode terminal, calling is configured to carry the conversation request message of special identifier, and it is routed to the IMS territory by the SIP signaling processing module, obtaining the roaming number of terminal called, and route the call to the VMSC at terminal called place according to roaming number;
Manages submodule everywhere, be used for when described media gateway controlling entity has the function of GMSC, and after described judge module judges that terminal called is single-mode terminal, directly obtain the roaming number of terminal called, and route the call to the VMSC at terminal called place according to roaming number;
The 5th processing sub is used for directly described calling being routed to callee side GMSC by the relaying signaling processing module after described judge module judges that terminal called is single-mode terminal.
16, entity as claimed in claim 13 is characterized in that, described relaying signaling processing module is used to handle ISDNYong Hubufen ISUP signaling, Telephone User Part TUP signaling, perhaps carries independent call control BICC signaling.
17, a kind of network domains is selected entity, comprising: logging modle, be used to write down terminal in the IMS territory with at the log-on message of CDMA1x circuit domain, and it is characterized in that described network domains selects entity NeDS also to comprise:
Identification module is used for discerning the conversation request message that MGCF sends and whether carries special identifier, if carry special identifier, then makes NeDS directly to the roaming number of HLR inquiry terminal called.
18, a kind of wireless network is characterized in that, comprising: as each described media gateway controlling entity of claim 13 to 16.
19, wireless network as claimed in claim 18 is characterized in that, also comprises: network domains as claimed in claim 17 is selected entity.
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| CN101198089B (en) * | 2006-12-07 | 2010-09-22 | 华为技术有限公司 | Method and system for implementing call forwarding service, and voice call continuous server |
| CN101202797B (en) * | 2006-12-15 | 2010-12-15 | 中国电信股份有限公司 | CS field / IMS voice FMC operational scheme |
| US20110007735A1 (en) * | 2008-02-22 | 2011-01-13 | Jacobus Martinus Kruithof | Call setup from a circuit switched network to a terminal residing within a packet switched network |
| CN101159981B (en) * | 2007-10-26 | 2011-06-08 | 华为技术有限公司 | Call routing establishment method, network element equipment and network system |
| CN101646144B (en) * | 2008-08-07 | 2012-10-10 | 中兴通讯股份有限公司 | Method for implementing bimodule service and system |
| CN101742466B (en) * | 2008-11-13 | 2013-08-07 | 中国移动通信集团公司 | Core network system supporting shared numbers of different domains and calling method for shared number terminals |
| CN103747430A (en) * | 2013-12-31 | 2014-04-23 | 华为技术有限公司 | Call control equipment and method for processing subscriber service |
| CN104796999A (en) * | 2014-01-17 | 2015-07-22 | 中国移动通信集团河北有限公司 | Calling service realization method and system |
| CN104917717A (en) * | 2014-03-10 | 2015-09-16 | 中国移动通信集团北京有限公司 | Calling method, equipment and system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1407631B1 (en) * | 2001-06-18 | 2009-12-16 | Nokia Corporation | Roaming from ims domain to the cs domain |
| US7027433B2 (en) * | 2001-06-20 | 2006-04-11 | Nokia Corporation | Routing a call between different types of networks |
| CN1479493A (en) * | 2002-08-31 | 2004-03-03 | 深圳市中兴通讯股份有限公司 | Interconnectioin system |
| CN1281071C (en) * | 2002-10-28 | 2006-10-18 | 华为技术有限公司 | A communication method for calling on the circuit switched domain of core networks of GSM/WCDMA |
| CN100459723C (en) * | 2002-12-15 | 2009-02-04 | 华为技术有限公司 | Method for realizing routing for next-generation network |
| EP1654853B1 (en) * | 2003-07-02 | 2008-11-26 | Nokia Corporation | Function mode routing |
-
2006
- 2006-03-08 CN CNB200610058158XA patent/CN100456847C/en not_active Expired - Fee Related
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| CN101198089B (en) * | 2006-12-07 | 2010-09-22 | 华为技术有限公司 | Method and system for implementing call forwarding service, and voice call continuous server |
| CN101202797B (en) * | 2006-12-15 | 2010-12-15 | 中国电信股份有限公司 | CS field / IMS voice FMC operational scheme |
| CN101159981B (en) * | 2007-10-26 | 2011-06-08 | 华为技术有限公司 | Call routing establishment method, network element equipment and network system |
| US20110007735A1 (en) * | 2008-02-22 | 2011-01-13 | Jacobus Martinus Kruithof | Call setup from a circuit switched network to a terminal residing within a packet switched network |
| US9386160B2 (en) * | 2008-02-22 | 2016-07-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Call setup from a circuit switched network to a terminal residing within a packet switched network |
| CN101646144B (en) * | 2008-08-07 | 2012-10-10 | 中兴通讯股份有限公司 | Method for implementing bimodule service and system |
| CN101742466B (en) * | 2008-11-13 | 2013-08-07 | 中国移动通信集团公司 | Core network system supporting shared numbers of different domains and calling method for shared number terminals |
| CN103747430A (en) * | 2013-12-31 | 2014-04-23 | 华为技术有限公司 | Call control equipment and method for processing subscriber service |
| US9918216B2 (en) | 2013-12-31 | 2018-03-13 | Huawei Technologies Co., Ltd | Home network domain selection for routing call to a visited network |
| CN104796999A (en) * | 2014-01-17 | 2015-07-22 | 中国移动通信集团河北有限公司 | Calling service realization method and system |
| CN104796999B (en) * | 2014-01-17 | 2018-12-04 | 中国移动通信集团河北有限公司 | A kind of realization method and system of call business |
| CN104917717A (en) * | 2014-03-10 | 2015-09-16 | 中国移动通信集团北京有限公司 | Calling method, equipment and system |
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