CN100396160C

CN100396160C - Method for logging mobile terminal in dual modes, and mobile communication network

Info

Publication number: CN100396160C
Application number: CNB2006100065162A
Authority: CN
Inventors: 徐杰
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-01-10
Filing date: 2006-01-10
Publication date: 2008-06-18
Anticipated expiration: 2026-01-10
Also published as: CN1874600A

Abstract

The present invention relates to the third generation of mobile communication technology, and discloses a method for registering a double-mode mobile terminal and a mobile communication network thereof, so that the registration of the double-mode terminal from a packet switched (PS) domain to a circuit switched (CS) domain is realized. In the present invention, the corresponding relation of the user identification of the same double-mode mobile terminal in the two domains is established in a database; when the mobile terminal is registered to the PS domain, an NeDS obtains the user identification in the CS domain through querying the corresponding relation and sends a registration message to an HLR in the CS domain according to the user identification, and the state of the mobile terminal is labeled in the PS domain by the HLR. The database can be arranged in the NeDS, and can also be arranged in an independent device or HSS, and ENUM servers. If the NeDS queries the corresponding relation from the independent device or the HSS, and the ENUM servers, the NeDS can store the query result locally and preferably queries the corresponding relation stored locally when the NeDS carries out query next time.

Description

The register method of mode mobile terminal and mobile communications network thereof

Technical field

The present invention relates to the 3G (Third Generation) Moblie technology, particularly the register method of mode mobile terminal.

Background technology

Along with advancing by leaps and bounds of the communication technology, people are also more and more higher for the expectation and the requirement of communication, characteristics such as the high bandwidth of 3G (Third Generation) Moblie (The Third Generation is called for short " 3G ") system, multi-service, high-quality are attracting the consumption market greatly.

The 3G system comprises Radio Access Network (Radio Access Network is called for short " RAN ") and core network (Core Network is called for short " CN ").Wherein, RAN handles all and wireless function associated; And all voice calls are connected with data in the CN processing 3G system, and the exchange of realization and external network and routing function.

CN is from being divided into circuit commutative field (Circuit Switched Domain is called for short " CS ") and packet-switched domain (Packet Switched Domain is called for short " PS ") in logic.Wherein, CS comprises mobile switching centre's (Mobile Switching Center is called for short " MSC ")/VLR Visitor Location Register (VisitorLocation Register is called for short " VLR ") and mobile gateway office (Gateway MSC is called for short " GMSC ").MSC/VLR finishes the functions such as control, management, authentication and encryption of CS, and GSMC is the webmaster of MSC, is responsible for fixing with other or being connected of mobile network.

3G system and second generation mobile communication (The Second Generation, " 2G ") system compares, structurally have two significant variations: the circuit domain bearing mode of CN changes to the packet bearer mode from traditional circuit bearing mode on the one hand, here so-called circuit domain is for the packet domain that mobile data services are provided, and must use circuit-switched technology but not refer in particular to; Then be to consider internetworking agreement (Internet Protocol on the other hand, abbreviation " IP ") application of network more and more widely, third generation partner program (3rd Generation Partnership Project, be called for short " 3GPP ") and third generation partner program 2 (3rd Generation Partnership Project 2, be called for short " 3GPP2 ") etc. normal structure all formulated mobile communications network to full grouping, the standard of the direction evolution of all-IP, IP-based IP multimedia subsystem, IMS has been proposed, also be internet protocol multimedia subsystem (IP MultimediaSubsystem, be called for short " IMS ") etc. various network architectures, purpose is to use a kind of structure of standardized opening to realize diversified multimedia application in the mobile network, offers more selection of user and abundanter impression.

3GPP has introduced the IMS territory in version 5 (Release 5, are called for short " the R5 ") stage, also is multimedia domain, MMD (Multi-Media Domain is called for short " MMD "), is superimposed upon on the packet field network.IMS is by CSCF (Call Session Control Function, abbreviation " CSCF "), MGCF (Media Gateway Control Function, abbreviation " MGCF "), media resource function (Multimedia Resource Function, be called for short " MRF ") and home signature user server functional entity compositions such as (Home Subscriber Server are called for short " HSS ").

Wherein, CSCF can be divided into serving CSCF (Serving CSCF is called for short " S-CSCF "), proxy CSCF (Proxy CSCF is called for short " P-CSCF ") and three logic entities of inquiry CSCF (Interrogating CSCF is called for short " I-CSCF ") again.

Specifically, S-CSCF is the service switching center of IMS, carries out session control, and peace preservation association's speech phase is in charge of user profile, produces charge information etc.; P-CSCF is the access point of terminal user access to IMS, finishes user's registration, is responsible for service quality (Quality of Service is called for short " QoS ") control and safety management etc.; I-CSCF is responsible for the intercommunication between the IMS territory, and network topology and configuration are externally hidden in the distribution of management S-CSCF, produce metering data etc.; The MGCF control gateway realizes the intercommunication of IMS network and other network; MRF provides media resource, as the folding and unfolding sound, and encoding and decoding and multimedia conferencing bridge; HSS is a customer data base, storage IMS user's subscription data and configuration information etc.

Because the structure of IMS network and bottom bearer network are irrelevant, therefore the IMS network of 3GPP definition also can be applied on other packet networks outside the packet field network of 3GPP definition, such as WLAN (wireless local area network) (Wireless Local Area Network, be called for short " WLAN ") and HRPD (high rate packet data) (HighRate Packet Data, be called for short " HRPD "), be also referred to as CDMA 2000 1x version (Code DivisionMultiple Access 20001x, be called for short " CDMA 20001x ") data-optimized evolution (EvolutionData Optimized is called for short " EV-DO ") technology.

In this case, there be the mode mobile terminal of part such as dual-mode handset, its most important function is to select service network, promptly selects access module, such as the CDMA 2000 EV-DO networks that can forward wireless broadband network from the CDMA 2000 1x networks of 2.5G to.That is to say, it can either insert wireless broadband network at hot zones, also can be carry out the mandarin sound business by circuit-domain network such as the conventional wireless honeycomb of CDMA 2000 1x or global system for mobile communications (Global System for mobileCommunication is called for short " GSM ") and so in the place that does not have wireless broadband network.

Between networks of different type, the coded system of user ID also has nothing in common with each other.For example, in CS, (the International Telecommunication UnionTelecommunication Standardization Sector of ITU Telecommunication Standardization Sector, being called for short " ITU-T ") the telephone number standard of the working out telephone number in E.164 is made up of three parts: national code (1 to 3 bit digital)+region-position code (M bit digital)+regular phone number (mostly be 15 most and subtract the M bit digital), for example, telephone number "+(86)-10-62553604 " is meant " China's (national code 86)-Beijing (area code 10)-CNNIC (regular phone number 62553604) ".(the InternationalTelecommunications Union of International Telecommunications Union, abbreviation " ITU ") national code being licensed to national entity manages, digital number after the national code is managed by this country and distributes, but basic distribution principle still will be followed certain grading authorized management strategy.

In addition, E.212 be also to be the number standard that a kind of ITU-T works out, also be international mobile subscriber identification (International Mobile Subscriber Identity, abbreviation " IMSI ") the formation standard of number, it is portable terminal (Mobile Terminal, be called for short " MT ") unified numbering is provided, its form is as shown in Figure 1.

IMSI is by mobile national number (Mobile Country Code, abbreviation " MCC "), mobile network number (Mobile Network Code, be called for short " MNC ") and mobile user identification number (MobileSubscriber Identification Number is called for short " MSIN ") composition.Wherein, MCC forms unique number that has defined the country at mobile signatory place by three numerals; MNC is by two or three digital compositions, and MNC has defined mobile signatory's local GSM PLMN (PublicLands Mobile Network is called for short " PLMN ") sign; MSIN has defined the number of mobile signatory in GSM PLMN.

In PS, user ID is unified resource sign (Uniform Resource Identifier is called for short " URI "), for example " 168@server.telecom.com ".

In CS and PS, the corresponding relation of user ID is deposited in user ID contrast query facility.Specifically, what user ID contrast query facility was stored is the user or the network identity contrast relationship of two or more network fields, accepts inquiry application and return results.User ID contrast query facility commonly used has such as electronic code (Electronic Numbering is called for short " ENUM ") server, DNS (Domain Name System is called for short " DNS ") server etc.

E.164 Number server is using the widest telephone number and internet (Internet) domain name addresses, Email (E-mail) address to combine in the whole world communication, makes people's more convenient and flexible server when carrying out various telecommunication path.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 packet voice (Voice over IP, abbreviation " VoIP ") addressing location, and HTML (Hypertext Markup Language) (Hyper Text Transfer Protocol, be called for short " HTTP ") visit, Email, directory service or the like network application, can also finish restrict access, inquiry and be redirected or the like a series of functions.

At present, between heterogeneous networks, set up when calling out, need change the CSI called subscriber identification in calling out.Such as, when the gateway device with across a network call proceeding ability is received calling from CS, the CSI called subscriber identification of just using among the CS is inquired about its corresponding PS user ID in user ID contrast query facility, user ID contrast query facility turns back to gateway device with Query Result again, is made a call to PS by gateway device.For example, gateway device is received the calling of CS, and its CSI called subscriber identification is " 1680110 ", this gateway device user ID among its corresponding PS of inquiry in the user ID contrast query facility of arriving.If find user ID, just return this Query Result and give gateway device into " 168@server.telecom.com ".According to this sign, gateway device is initiated PS to this called subscriber and is called out again.

Can forward the mode mobile terminal of the CDMA 2000EV-DO network of wireless broadband network from the CDMA 2000 1x networks of 2.5G to, the network architecture when registering respectively under based on the circuit network of CDMA 2000 1x technology and the packet network based on CDMA 2000 EV-DO or WLAN technology as shown in Figure 2, wherein, network selecting entity (Network Domain Selection, be called for short " NeDS ") mainly be to play between based on the packet network of MMD and circuit network the function of registering between net is provided based on CDMA 2000 1x, also promising simultaneously mode mobile terminal provides the function of route when calling out.Except call continuity controlled entity (Call Control Continuity Function, be called for short " CCCF ") and NeDS outside, other network element all is the CDMA 2000 1x circuit networks of standard and the existing entity of MMD packet network that has nothing to do with access way.

Under this network architecture, mode mobile terminal might be registered at packet network, also might register at circuit network.It is related that NeDS plays a part between these two networks, and it is an application server (Application Server is called for short " AS ") at packet network, when mode mobile terminal when packet network is registered, can notify it; When mode mobile terminal when circuit network is registered, its can notice packet network.NeDS is a VLR at circuit network, when mode mobile terminal when packet network is registered, notice and simulation VLR that it receives packet network initiate log-in command to HLR, allow the attaching position register (Home Location Register is called for short " HLR ") of circuit network seem that mode mobile terminal is to be registered in above it; When mode mobile terminal when circuit network is registered, NeDS can receive from HLR there and nullify order and notice packet network.

Under the above-mentioned network architecture and entity function definition, the 3GPP2 normal structure has also defined some mode mobile terminals in circuit network registration and the related news flow process when packet network is registered.

In actual applications, there is following problem in such scheme: mode mobile terminal is registered to packet domain relatively to be limited to.

Cause the main cause of this situation to be, because NeDS receives after the SIP register command, need send MAP signaling position register request to circuit network, in this MAP signaling, need to fill in the IMSI parameter, and the IMSI parameter can not have in the SIP register command, so NeDS need find the E.212 form IMSI number of mode mobile terminal according to user's URI.

Because E.164 the at present general ENUM technology that adopts all is to use format number to carry out the ENUM inquiry.But in present 3GPP2 standard not to the explanation that makes an explanation of this problem, for example in the ENUM technology CDMA MAP, can not have the E.164 mobile directory number, MDN of form (Mobile Directory Number in these two message of position register request and de-registration request, be called for short " MDN "), and have only the E.212 user IMSI number of form.

Summary of the invention

In view of this, main purpose of the present invention is to provide a kind of register method and mobile communications network thereof of mode mobile terminal, makes dual-mode terminal be able to smooth realization by packet domain to the registration of circuit domain.

For achieving the above object, the invention provides a kind of register method of mode mobile terminal, comprise following steps:

Preserve the corresponding relation of the circuit domain user sign and the packet domain user sign of mode mobile terminal in advance;

When described portable terminal when packet domain is registered, simultaneously inquire about described corresponding relation according to the user ID of this portable terminal in packet domain with first network element of circuit domain and packet domain intercommunication, obtain the user ID of this portable terminal in circuit domain, and the transmission of second network element in circuit domain registration message, wherein comprise the user ID of this portable terminal in circuit domain;

Described second network element is according to the user ID in the described registration message, described status of mobile terminal is labeled as be registered in first network element.

Wherein, described first network element is the network selecting entity;

Described second network element is an attaching position register.

In this external described method,, and inquire this status of mobile terminal when being registered in first network element, route the call to first network element when described circuit domain during in the calling of receiving described portable terminal.

In this external described method, described corresponding relation is kept in first network element.

In this external described method, described corresponding relation is kept in the separate equipment, and described network selecting entity is inquired about the user ID of described portable terminal in another territory to this autonomous device.

In this external described method, described corresponding relation is kept in the home signature user server, and described network selecting entity is inquired about the user ID of described portable terminal in another territory to this home signature user server.

In this external described method, described corresponding relation is kept in the number server, and described network selecting entity is inquired about the user ID of described portable terminal in another territory to this number server.

In this external described method, also comprise following steps:

If described corresponding relation is kept in other network element, described network selecting entity is after this network element inquiry, according to Query Result the circuit domain user sign of described portable terminal and the corresponding relation of packet domain user sign are kept at this locality, when needing to inquire about next time, in the corresponding relation that preserve this locality, search earlier, if search failure again to described other network element inquiry.

In this external described method, described corresponding relation with in the database or document form preserve.

In this external described method, described circuit domain user is designated international mobile station identity number or mobile directory number, MDN, and wherein, mobile directory number, MDN comprises E.164 format number, and international mobile station identity number comprises E.212 format number;

Described packet domain user is designated the unified resource sign, wherein comprises public identify and privately owned sign.

The present invention also provides a kind of mobile communications network, comprises circuit domain and packet domain, also comprises:

Database is used to preserve the circuit domain user sign of mode mobile terminal and the corresponding relation that packet domain user identifies;

Simultaneously with first network element of circuit domain and packet domain intercommunication, be used at described portable terminal when packet domain is registered, inquire about described database according to the user ID of this portable terminal in packet domain, obtain the user ID of this portable terminal in circuit domain, and the transmission of second network element in circuit domain registration message, wherein comprise the user ID of this portable terminal in circuit domain;

Second network element in the circuit domain is used for the user ID of basis from the registration message of described first network element, described status of mobile terminal is labeled as be registered in first network element.

Wherein, described first network element is the network selecting entity;

Described second network element is an attaching position register;

Described database is an autonomous device physically, or a module in the miscellaneous equipment.

In addition, described second network element also is used in the calling of receiving described portable terminal, and inquires this status of mobile terminal when being registered in first network element, routes the call to first network element.

In addition, described circuit domain user is designated international mobile station identity number or mobile directory number, MDN, and wherein, mobile directory number, MDN comprises E.164 format number, and international mobile station identity number comprises E.212 format number;

By relatively finding, the main distinction of technical scheme of the present invention and prior art is, in database, set up the corresponding relation of same mode mobile terminal user ID in two territories, when portable terminal is registered in the PS territory, NeDS is by the user ID of this corresponding relation acquisition of inquiry in the CS territory, and, status of mobile terminal is labeled as in the PS territory by HLR according to the HLR transmission registration message of this sign in the CS territory.

Database can place NeDS, also can place separate equipment or HSS, E.164 Number server.If NeDS is to separate equipment or HSS, E.164 Number server inquiry corresponding relation, then NeDS can preserve Query Result in this locality, preferentially looks into the local corresponding relation of preserving when inquiring about next time.

Difference on this technical scheme, brought comparatively significantly beneficial effect, promptly, make the user ID of mode mobile terminal in these two territories can be transformed into the CS territory, thereby UE can realize the registration in PS territory from the PS territory by the foundation of CS territory and PS territory user ID corresponding relation.

By in NeDS, keeping the result who inquires from separate equipment or HSS, E.164 Number server, make NeDS more rapid when inquiring about the user ID of this mode mobile terminal next time.

Description of drawings

Fig. 1 is an IMSI number reference format schematic diagram in the prior art;

Fig. 2 be in the prior art mode mobile terminal in the schematic network structure of circuit network and packet network registration;

Fig. 3 is the mode mobile terminal register method flow chart according to first embodiment of the invention;

Fig. 4 is according to the NeDS of second embodiment of the invention and separate equipment interconnected relationship schematic diagram;

Fig. 5 is the mode mobile terminal register method flow chart according to second embodiment of the invention;

Fig. 6 is the enhancing HSS structural representation according to third embodiment of the invention;

Fig. 7 is the mode mobile terminal register method flow chart according to third embodiment of the invention;

Fig. 8 is the mode mobile terminal register method flow chart according to four embodiment of the invention.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.

The present invention deposits the corresponding relation of the circuit domain user sign and the packet domain user sign of user's mode mobile terminal by database or document form.

The deposit position of this corresponding relation can be among NeDS, also can be in separate equipment, or inquires about and download for each application server in some public server, for example is placed among the HSS, and NeDS inquires about download by Sh interface; Perhaps leave in the E.164 Number server, NeDS mode such as inquires about by the ENUM query script.

The register method of the mode mobile terminal of first embodiment of the invention as shown in Figure 3, preserve in advance the IMSI of mode mobile terminal and MDN etc. E.164 form and E.212 the packet domain user sign corresponding relation of the circuit domain user sign of form and URI in NeDS, can be with database or document form preservation.By the foundation of CS territory and PS territory user ID corresponding relation, make and to obtain corresponding CS territory user ID by inquiry PS territory user ID.

In step 301, mode mobile terminal sends SIP registration (REGISTER) signaling to the IMS network, initiates register flow path.

In step 302, I-CSCF receives after user's registration message, to HSS application S-CSCF address.

In step 303, HSS distributes after the S-CSCF, and the address is returned to I-CSCF.

In step 304, I-CSCF is transmitted to S-CSCF with registration message.

In step 305, S-CSCF is to HSS application download user data.

In step 306, HSS returns user data to S-CSCF.

In step 307, S-CSCF initiates the third-party registration flow process to NeDS, notice NeDS.

In step 308, NeDS receives that after the registration message that S-CSCF sends according to the public identify among the user's who obtains the URI, inquiry is stored in its inner corresponding relation from registration message, obtain user's sign associated datas such as IMSI number.Then, NeDS has user's IMSI number to the circuit domain location registers flow process of circuit domain HLR initiation simulation in the message.

In step 309, HLR receives after the location registers message, the login state of portable terminal is labeled as be registered among the NeDS.And to NeDS home position enrollment response message.

In step 310, NeDS returns the registration response to S-CSCF.

In step 311, S-CSCF returns the registration response to I-CSCF.

In step 312, I-CSCF returns the registration response to terminal.

After this, when circuit domain equipment is received calling to this portable terminal, if this status of mobile terminal then routes the call to NeDS for being registered among the NeDS.

In addition, also corresponding relation can be deposited in the separate equipment with the database form, as shown in Figure 4, according to this database, the register method of the mode mobile terminal of second embodiment of the invention as shown in Figure 5.

Step 501 is similar to step 307 to step 507 and step 301.

In step 508, NeDS receives after the registration message that S-CSCF sends, according to the public identify among the user's who obtains from registration message the URI, to sign associated datas such as the IMSI of autonomous device inquiring user numbers.

In step 509, this separate equipment by data base querying after, user ID associated datas such as IMSI number are returned to NeDS.

In step 510, NeDS has obtained the user at the IMSI of circuit domain number, in public identify and the privately owned sign of packet domain at this point, can also from this autonomous device, obtain other association identification, as MDN number etc., and preserve the corresponding relation inquired, when needing to inquire about next time, in the corresponding relation that preserve this locality, search earlier, in this separate equipment database, inquire about again if search failure.NeDS more rapid when inquiring about the user ID of this mode mobile terminal next time like this.Then, NeDS initiates the position register request flow process of simulation according to the user IMSI number of receiving to circuit domain HLR.

In step 511, HLR can also comprise the user at the MDN of circuit domain number to NeDS home position registration success response in the response message.

Step 512 also is similar to step 310 to step 312 to step 514, does not give unnecessary details at this.

Corresponding relation is deposited among the HSS with the database form, and as shown in Figure 6, according to this database, the register method of the mode mobile terminal of third embodiment of the invention as shown in Figure 7.

Step 701 is similar to step 307 to step 707 and step 301.

In step 708, NeDS receives after the registration message that S-CSCF sends, according to the public identify among the user's who obtains from registration message the URI, to HSS application user's sign associated datas such as IMSI number.

In step 709, HSS by data base querying after, user ID associated datas such as IMSI number are returned to NeDS.

In step 710, NeDS has obtained the user at the IMSI of circuit domain number, in the public identify and the privately owned sign of packet domain at this point, can also obtain other association identification from HSS, as the MDN number etc., and preserves the corresponding relation that is inquired.Similarly, when needing to inquire about, in the corresponding relation that preserve this locality, search earlier next time, inquire about to HSS again if search failure.NeDS more rapid when inquiring about the user ID of this mode mobile terminal next time like this.Then, NeDS initiates the position register request flow process of simulation according to the user IMSI number of receiving to circuit domain HLR.

Step 711 also is similar to step 511 respectively to step 514 to step 714, does not give unnecessary details at this.

The register method of the mode mobile terminal of four embodiment of the invention as shown in Figure 8, with database storage in E.164 Number server.Like this, need expansion ENUM technology, format number is unified resource location (Universal ResourceLocator through query conversion to allow the ENUM technology be equally applicable to E.212, be called for short " URL "), thus make the NeDS entity also can arrive the URI of user by the IMSI number inquiry that receives at packet network.

At first NeDS is after receiving the E.212 number that need carry out the ENUM inquiry, carry out the number preliminary treatment: the IMSI number of the E.212 form that will receive, as " 460030912345678 ", between each numeral, add ". ", obtain the number of similar " 4.6.0.0.3.0.9.1.2.3.4.5.6.7.8 ", again with its counter-rotating, and add suffix " .e212.arpa ", obtain symbol string " 8.7.6.5.4.3.2.1.9.0.3.0.0.6.4.e212.arpa ".

Character string after NeDS will handle then sends to E.164 Number server according to DNS Protocol, and receives therewith the URI set that E.212 number is relevant from E.164 Number server.

At last, NeDS selects corresponding URI according to it self application demand, continues to carry out corresponding protocol, finishes the operation of expection.

If the E.212 number that NeDS receives is MSIN rather than IMSI, then NeDS needed to add MCC and MNC to MSIN number front before the preliminary treatment of checking numbers.As for how finding corresponding MCC and MNC, then can be configured according to the country that HLR belonged to and the operator that send message.

In like manner also can carry out ENUM and oppositely inquire about, carry out the E.212 number that the ENUM inquiry obtains the user according to URI, its method as shown in Figure 8.

Step 801 is similar to step 301 to step 307 to step 807.

In step 808, NeDS receives after the registration message that S-CSCF sends, according to the public identify among the user's who obtains from registration message the URI, to sign associated datas such as the IMSI of E.164 Number server inquiring user numbers.

In step 809, E.164 Number server returns to NeDS with user ID associated datas such as IMSI numbers.

In step 810, NeDS has obtained the user at the IMSI of circuit domain number, in the URI of packet domain public identify and privately owned sign at this point, can also obtain other association identification from the E.164 Number server inquiry, as MDN number etc., and also this corresponding relation is kept at this locality, when needing to inquire about next time, in the corresponding relation that preserve this locality, search earlier, inquire about to E.164 Number server again if search failure.Too, NeDS can be more rapid when inquiring about the user ID of this mode mobile terminal next time.Then, NeDS initiates the position register request flow process of simulation according to the user IMSI number of receiving to circuit domain HLR.

Step 811 also is similar to step 511 and step 514 to step 814, repeats no more herein.

Above-mentioned execution mode of the present invention is that to deposit in NeDS, separate equipment, HSS or the E.164 Number server with corresponding relation that the circuit domain user of mode mobile terminal sign and packet domain user identify be example, those of ordinary skills understand easily, this corresponding relation can also be deposited in the network element with other, inquire about by NeDS.

Though pass through with reference to some of the preferred embodiment of the invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that and can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.

Claims

1. the register method of a mode mobile terminal is characterized in that, comprises following steps:

2. the register method of mode mobile terminal according to claim 1 is characterized in that, described first network element is the network selecting entity;

Described second network element is an attaching position register.

3. the register method of mode mobile terminal according to claim 2, it is characterized in that, when described circuit domain in the calling of receiving to described portable terminal, and inquire this status of mobile terminal when being registered in first network element, route the call to first network element.

4. the register method of mode mobile terminal according to claim 2 is characterized in that, described corresponding relation is kept in described first network element.

5. the register method of mode mobile terminal according to claim 2 is characterized in that, described corresponding relation is kept in the separate equipment, and described network selecting entity is inquired about the user ID of described portable terminal in another territory to this autonomous device.

6. the register method of mode mobile terminal according to claim 2, it is characterized in that, described corresponding relation is kept in the home signature user server, and described network selecting entity is inquired about the user ID of described portable terminal in another territory to this home signature user server.

7. the register method of mode mobile terminal according to claim 2 is characterized in that, described corresponding relation is kept in the number server, and described network selecting entity is inquired about the user ID of described portable terminal in another territory to this number server.

8. according to the register method of claim 6 or 7 described mode mobile terminals, it is characterized in that, also comprise following steps:

9. according to the register method of each described mode mobile terminal in the claim 1 to 7, it is characterized in that described corresponding relation is preserved with database or document form.

10. according to the register method of each described mode mobile terminal in the claim 1 to 7, it is characterized in that, described circuit domain user is designated international mobile station identity number or mobile directory number, MDN, wherein, described mobile directory number, MDN comprises E.164 format number, and described international mobile station identity number comprises E.212 format number;

11. a mobile communications network comprises circuit domain and packet domain, it is characterized in that, also comprises:

12. mobile communications network according to claim 11 is characterized in that, described first network element is the network selecting entity;

Described second network element is an attaching position register;

13. mobile communications network according to claim 11, it is characterized in that, described second network element also is used in the calling of receiving described portable terminal, and inquires this status of mobile terminal when being registered in first network element, routes the call to first network element.

14. mobile communications network according to claim 11, it is characterized in that, described circuit domain user is designated international mobile station identity number or mobile directory number, MDN, wherein, described mobile directory number, MDN comprises E.164 format number, and described international mobile station identity number comprises E.212 format number;