CN102421168B

CN102421168B - Methods for realizing calling and called services as well as mobile subscriber elimination and subscription server

Info

Publication number: CN102421168B
Application number: CN201010505709.9A
Authority: CN
Inventors: 曲爱妍; 王刚; 游世林; 王志海; 刘建业; 周宇翔
Original assignee: ZTE Corp
Current assignee: Changshu intellectual property operation center Co.,Ltd.
Priority date: 2010-09-28
Filing date: 2010-09-28
Publication date: 2014-12-10
Anticipated expiration: 2030-09-28
Also published as: CN102421168A

Abstract

The invention discloses methods for realizing calling and called services as well as mobile subscriber elimination and a subscription server. The method for realizing the called service comprises the steps of: in a called process of a dual-mode dual-standby terminal subscriber, after the subscription server receives a routing query message carrying the bearing capacity and the MSISDN (Mobile Station International ISDN (Integrated Services Digital Network)/PSTN (Public Switched Telephone Network) Number) of a current call, selecting an access type according to the subscriber states of two kinds of access types of an IMSI (International Mobile Subscriber Identity) related to the bearing capacity and the MSISDN by the subscription server; and requesting corresponding core network equipment to distribute one MSRN (Mobile Station Roaming Number) for the IMSI by the subscription server according to a core network equipment identity corresponding to the selected access type, and sending the obtained MSRN back to a sending party of the routing query message. By adopting the methods and the subscription service disclosed by the invention, a dual-mode dual-standby terminal can be accessed to different networks by using the same MSISDN, and a subscriber does not need to select the MSISDN, so that favorable experience is obtained.

Description

The implementation method of called service and subscribed services device

Technical field

The present invention relates to the communications field, relate in particular to a kind of calling and called service and removing mobile subscriber's implementation method and subscribed services device.

Background technology

Existing communication system comprises 2G (2 ^ndgeneration, the second generation) mobile communcations system and 3G (3 ^rdgeneration, the third generation) mobile communcations system, wherein 2G communication system comprises global system for mobile communications (Global System for Mobile Communications according to different standards, be called for short GSM) and code division multiple access (Code Division Multiple Access is called for short CDMA) mobile communcations system; And 3G mobile communcations system is formed by the evolution of 2G mobile communcations system, GSM is evolved to Wideband Code Division Multiple Access (WCDMA) (Wideband Code Division Multiple Access, be called for short WCDMA) mobile communcations system and TD SDMA (Time Division-Synchronous Code Division Multiple Access, be called for short TD-SCDMA) mobile communcations system, CDMA is evolved to CDMA2000 mobile communcations system.

Only with GSM and WCDMA/TD-SCDMA system diagram (as shown in Figure 1), introduce mobile communcations system principle below, during specific implementation, also can comprise CDMA and CDMA2000 mobile communcations system.

Existing GSM and WCDMA/TD-SCDMA mobile communcations system comprise two wireless access network (Access Network, abbreviation AN) GERAN (the GSM EDGE Radio Access Network that comprises 2G, strengthen the global system for mobile communications Radio Access Network of data rate), in figure shown in AN1; And the UTRAN of 3G (Universal Terrestrial Radio Access Network, universal land radio access web), in figure shown in AN2.User terminal (User Equipment, abbreviation UE) comprise the UE that supports 2G access, be the UE1 of Fig. 1, with the UE that supports 3G access, be the UE2 of Fig. 1, also comprise in addition the dual-mode terminal of simultaneously supporting 2G and 3G access, be the UE3 of Fig. 1, this terminal comprises 2 kinds of receive-transmit systems, this terminal also comprises 2 types, a kind of is the terminal of only having a subscriber card, this terminal will be selected corresponding network according to individual subscriber wish or the on-site network signal power of user, this terminal is called as double-mode single-standby terminal, another is that terminal has 2 subscriber cards, user can access two kinds of different networks simultaneously, even can support to access cdma network for one, this terminal is called as double-mode and double-standby terminal, core net (Core Network, abbreviation CN) comprise circuit switching (Circuit Switched, be called for short CS) network element and packet switching (Packet Switched, be called for short PS) network element, wherein CS network element comprises 2G CS network element MSC/VLR (Mobile Switch Center/Visitor Location Register, mobile switching center/visitor location register), in figure shown in CN1 and CN2, UE1 can roam into CN1 from CN2, CS network element also comprises 3G CS network element MSCS/MGW (Mobile Switch Center Server/Media Gateway, mobile interaction center server/media gateway), in figure shown in CN3 and CN4, UE2 can roam into CN3 from CN4, and UE3 can be at CN1, CN2, between CN3 and CN4, roam, CS network element also comprises gateway and moves (the Gateway MSC/Tandem MSC of interaction center/tandem mobile switching centre in addition, be called for short GMSC/TMSC), GMSC is mainly used in called routing addressing and signal switching, TMSC be mainly used in the long-distance tandem of user or with the functions such as signaling exchange of other switching networks, PS network element comprises service universal grouping wireless service technology (General Packet Radio Service, be called for short GPRS) support node (Serving GPRS Support Node, be called for short SGSN) network element and Gateway GPRS Support Node (Gateway GPRS Support Node, be called for short GGSN) network element, GGSN is connected with external packet data network as router, because this patent only relates to circuit domain, process, thus in figure without node corresponding to packet network.

Attaching position register/home subscriber server (Home Location Register/Home Subscriber Server in addition, be called for short HLR/HSS), below be referred to as subscribed services device, for the data of managing CS territory, PS territory network, HLR/HSS provides 2G data for CN1 and CN2, also for CN3 and CN4 provide 3G data, wherein CN3 and CN4 can similar CN1 and CN2 and HLR/HSS direct-connected, also can be connected with HLR/HSS by GMSC/TMSC.

Along with constantly more new development of technology, 3G core net can be supported the access of GERAN and UTRAN simultaneously, AN1 is linked into the mode of CN3 as shown in Figure 1, be called common core net mode, and AN1 is linked into CN1, AN2 is linked into this GERAN of CN3 and is linked into 2G core net, and the mode that UTRAN is linked into 3G core net is called a minute core net mode.

Introduce the general position update flow of 2G technology and 3G technology below, as shown in Figure 2.

This flow process comprises UE1 and roams into CN1 or UE2 roams into CN3 from CN4 from CN2, or UE3 roams into CN3 from CN1 or CN2 or CN4, or UE3 roams into CN1 from CN2 or CN3, CN4, or the user terminal flow process of starting shooting first.

201, UE1/UE2/UE3 passes through wireless access network AN1/AN2 to CN1/CN3 launch position update request message, described message is carried the type that this position is upgraded, represent common position renewal or periodic location update, or international mobile subscriber identity (International Mobile Subscriber Identification Number, be called for short IMSI) adhere to, described message is also carried user ID IMSI, or interim identification code (Temporary Mobile SubscriberIdentity, be called for short TMSI), described message also comprises Location Area Identification (Location Area Identification, be called for short LAI), described message comprises class of subscriber 1 (Mobile Station Classmark 1) or class of subscriber 2 (Mobile Station Classmark 2).

202, CN1/CN3 checks user ID, if CN1/CN3 is not familiar with interim identification code TMSI, can to UE, obtain IMSI by Access Network, CN1/CN3 checks the authentication vector of whether preserving user, if there is no authentication vector, carry user ID IMSI and send authentication request message to HLR/HSS, to HLR/HSS application authentication vector;

203, HLR/HSS sends authentication request response message to CN1/CN3, and described message, according to configuring in HLR/HSS, sends many group authentication vector to CN1/CN3, such as three groups or five groups;

204, CN1/CN3 sends authentication request message by AN1/AN2 to UE;

205, UE passes through authentication arithmetic, calculate a result, and carry authenticating result and to CN1/CN3, send authentication request response message by AN1/AN2, CN1/CN3 receives after this message relatively authenticating result, if with network in the authenticating result calculated inconsistent, represent failed authentication, to UE home position, upgrade unsuccessfully, if comparative result is consistent, represent authentication success;

206, after the success of CN1/CN3 authentication, to HLR/HSS, send MAP (Mobile Application Part, be called for short MAP) location update request message (MAP UPDATE LOCATION), described message is carried user ID IMSI, CN1/CN3 sign, i.e. MSC address and VLR number;

VLR number during 207, HLR/HSS checks and preserves, if VLR is not empty, the network C N2/CN4 representing to the VLR number of preserving sends MAP delete position request message (MAP CANCEL LOCATION), described message is carried user ID IMSI;

208, CN2/CN4 deletes after the subscription data of preserving, to HLR/HSS loopback MAP delete position request response;

209, HLR/HSS sends MAP to CN1/CN3 and inserts subscriber data message (MAP INSERT SUBSCRIBER DATA), described message is carried the signing business datum of user and mobile subscriber number (Mobile Subscriber InternationalISDN/PSTN number, be called for short MSISDN), wherein ISDN is integrated services digital network, it is the abbreviation of Integrated Service Digital Network, PSTN is exactly PSTN, it is the abbreviation of Public Switched Telephone Network, described message is also carried Subscriber Number IMSI,

210, CN1/CN3 receives that MAP inserts after subscriber data message, preserves user's business datum and Subscriber Number IMSI and MSISDN, to HLR/HSS loopback MAP, inserts user data response message;

211, HLR/HSS is to CN1/CN3 loopback MAP position updating request response message;

212～213, CN1/CN3 and AN1/AN2 and UE1/UE2/UE3, by relevant encryption or decipherment algorithm, complete the ciphering process of air interface;

Step 212 and 213 is optional process, can not carry out ciphering process according to the equipment situation of operator.

214, CN1/CN3 sends position by AN1/AN2 to UE1/UE2/UE3 and upgrades acknowledgement message, if network need to be redistributed TMSI, described message can comprise the heavy assignment command message of TMSI, and described TMSI is heavy, and assignment commands is carried the new TMSI of network allocation;

215, UE1/UE2/UE3 preserves after new TMSI, to CN1/CN3, sends TMSI Reallocation Complete message.

If step 214 is without the heavy assignment command message of TMSI, in this step, represent that position upgraded, if comprised, in 215 step completing place update requests.

Introduce the calling procedure that UE1 initiates by AN1 and CN1 below, in like manner can derive the calling procedure that UE2 initiates by AN2 and CN2, the calling procedure that UE3 initiates, as shown in Figure 3.

301, UE1 sends call setup message by AN1 to CN1, and described call setup message carries called number, and described message is also carried the bearing capacity of this calling, described bearing capacity shows that this calling is speech business or data service, and video call is also a kind of of data service;

302, CN1 checks after UE1 access capability, accept this and call out, by AN1 to UE1 loopback call treatment message, described call treatment message indication UE1 calls out well afoot;

303, CN1 passes through number analysis, analyzing called number, find that this calling is outbound call, to relevant tandem exchange or gateway exchange (GMSC/TMSC), send ISDN User Part (ISDN User Part, be called for short ISUP) initial address message, described ISUP initial address message carries called number, and described message is also carried bearing capacity;

304, GMSC/TMSC forwards ISUP initial address message to other networks (called network of this calling);

305, after dialed terminal bell, other networks send ISUP Address Complete Message to GMSC/TMSC;

306, GMSC/TMSC forwards ISUP Address Complete Message to CN1;

307, CN1 receives after ISUP Address Complete Message, by AN1, to UE1, sends ALERTING message, and UE1 now can hear ring-back tone;

308, after called receiving calls, other networks send ISUP response message to GMSC/TMSC;

309, GMSC/TMSC forwards ISUP response message to CN1;

310, CN1 receives after ISUP response message, by AN1, to UE1, sends connection message;

311, UE1 sends CONNect Acknowledgement message by AN1 to CN1.

Complete since then the caller Establishing process of UE1.

Introducing is below that other networks are called out the called flow of UE1 by AN1 and CN1, in like manner can derive the called flow at AN2 and CN2 initiation UE2, or the called flow of UE3, as shown in Figure 4.

401, other networks (caller network) send ISUP initial address message to GMSC/TMSC, and described message is carried the bearing capacity of called number and this calling, and described bearing capacity shows that this calling is speech business or data service;

402, GMSC/TMSC analyzing called number, the result of analyzing according to called number, to HLR/HSS corresponding to called number, send MAP routing inquiry message (MAP Send Routing Information, be called for short SRI), described message is carried called MS ISDN number, and described message is carried this call bearer ability;

403, HLR/HSS inquires MSC address and the VLR number in the CN1 that HLR/HSS preserves, and to CN1, sends the MAP request message that Provides Roaming Number, and described message is carried called IMSI, and described message is also carried the MSC number of CN1;

404, CN1 is according to configuration, distributes a roaming number (Mobile Station Roaming Number is called for short MSRN) to corresponding IMSI, and CN1 carries MSRN to the HLR/HSS loopback MAP request response that Provides Roaming Number;

405, HLR/HSS carries MSRN to GMSC/TMSC loopback MAP routing query response message;

406, GMSC/TMSC analyzes MSRN, according to analysis result, to CN1, sends ISUP initial address message, and described message is carried MSRN and bearing capacity;

407, CN1 receives after described ISUP initial address message, inquires about IMSI or the TMSI of corresponding number by MSRN, carries IMSI or TMSI (preferentially using TMSI) and to UE1, sends beep-page message by AN1;

408, UE1 receives after beep-page message, by AN1, to CN1, sends page-response message;

409, CN1 sends call setup message by AN1 to UE1, and described message is carried calling number, for the caller ID display of UE1;

410, UE1 sends call confirmation message by AN1 to CN1, and described message is carried the bearing capacity after negotiation, and CN1 sets up interface-free resources for AN1 allocation of channel resources for AN1 after receiving call confirmation message;

411, after interface-free resources establishes, UE1 sends ALERTING message by AN1 to CN1, tells caller network, called ring;

412, CN1 sends ISUP Address Complete Message to GMSC/TMSC;

413, GMSC/TMSC is to other forwarded ISUP Address Complete Message;

After 414, UE1 answers, by AN1, to CN1, send connection message;

415, CN1 receives after connection message, to GMSC/TMSC, sends ISUP response message;

416, GMSC/TMSC is to other forwarded ISUP response message;

417, CN1 receives after connection message, by AN1, to UE1, sends CONNect Acknowledgement message;

The called flow of UE1 has been set up since then.

In existing network, exist the terminal of dual-mode dual-standby, because user has two different cards, can access heterogeneous networks simultaneously, or even the network of different operators, will cause like this user to have two different MS ISDN numbers, cause poor user experience, and for operator, partial service may other operators be taken away, and causes the income of operator to reduce.

In addition, communication system is among continuous evolution process at present, the network of evolution is better quality and service as 3G network has, but be temporarily also unable to catch up with legacy network as 2G network on covering, the customer volume of two networks is also very unbalanced simultaneously, use the number of users of 3G network also seldom, be unfavorable for making full use of of resource.For the double-mode and double-standby terminal that can access legacy network and evolvement network simultaneously, how guaranteeing under the prerequisite of user's proper communication, for user provides better communication quality and service, and the customer volume of balancing network, be also the problem that needs solution.

Summary of the invention

The technical problem to be solved in the present invention overcomes the deficiencies in the prior art exactly, proposes a kind of calling and called service and removing mobile subscriber's implementation method and subscribed services device, and double-mode and double-standby terminal can be used same MSISDN to be linked into heterogeneous networks.

In order to address the above problem, the invention provides a kind of implementation method of calling service, comprising:

In the time of can using the double-mode and double-standby terminal initiation calling service of two kinds of networks of an international mobile subscriber identity (IMSI) access, according to user's type of service, select an access style, the wireless access network corresponding by this access style carries out business.

Preferably, described method also can have following characteristics:

Described double-mode and double-standby terminal is used interim identification code (TMSI) to access described wireless access network to carry out business, and described TMSI is corresponding with this IMSI and this access style.

Preferably, described method also can have following characteristics:

If described double-mode and double-standby terminal from 2G and the access of 3G wireless access network, when calling service is speech business, is selected 2G access style; When calling service is data service, select 3G access style.

If described double-mode and double-standby terminal, only from the access of 2G wireless access network, when calling service is the facsimile service in speech business or data service, is selected 2G access style; When calling service is the video traffic in data service, this data service is revised as to speech business, and selects 2G access style.

If described double-mode and double-standby terminal is only from the access of 3G wireless access network, calling service is speech business or data service, all selects 3G access style.

In order to address the above problem, the invention provides a kind of implementation method of called service, comprising:

In double-mode and double-standby terminal user's called flow, subscribed services device is received and is carried after the bearing capacity of this calling and the routing inquiry message of MSISDN, according to the User Status of two kinds of access styles of the described bearing capacity IMSI associated with described MSISDN, select access style;

The equipment of the core network sign that subscribed services device is corresponding according to selected access style, asks corresponding equipment of the core network for this IMSI distribution mobile station roaming number (MSRN), and the MSRN obtaining is transmitted back to the transmit leg of routing inquiry message;

Wherein, described subscribed services device preserve a MSISDN that described double-mode and double-standby terminal user contracts, associated with this MSISDN IMSI and with the associated two kinds of access styles of this IMSI.

Preferably, described method also can have following characteristics:

According to the User Status of two kinds of access styles of the described bearing capacity IMSI associated with described MSISDN, select access style to comprise:

When the bearing capacity of this calling is speech business, when User Status corresponding to 2G access style is attached state, select 2G access style; When only having the User Status that 3G access style is corresponding, be attached state, select 3G access style;

When the bearing capacity of this calling is the facsimile service in data service, when User Status corresponding to 3G access style is attached state, select 3G access style; When only having the User Status that 2G access style is corresponding, be attached state, select 2G access style;

When the bearing capacity of this calling is the video traffic in data service, when User Status corresponding to 3G access style is attached state, select 3G access style; When only having the User Status that 2G access style is corresponding, be attached state, the bearing capacity of this calling is revised as to speech business, select 2G access style.

In order to address the above problem, the invention provides a kind of mobile subscriber's of removing implementation method, comprising:

Equipment of the core network sends and removes user message to subscribed services device, carries user's IMSI or this user's IMSI and a kind of access style or this user's IMSI and all access styles corresponding to this IMSI in this removing user message;

Subscribed services device receives after this removing user message, if carry this user's IMSI and a kind of access style in this removing user message, the User Status of this access style of this IMSI is stamped to unreachable sign; If this message is only carried this user's IMSI, or carry this user's IMSI and all access styles corresponding to this IMSI, this user's IMSI is stamped to all access styles of unreachable sign or this IMSI and all stamp unreachable sign.

In order to address the above problem, the invention provides a kind of subscribed services device, comprising: information management module, network selection module and number acquisition module, wherein:

Described information management module for preserve a MSISDN that double-mode and double-standby terminal user contracts, associated with this MSISDN IMSI and with the associated two kinds of access styles of this IMSI;

Described network selection module is for the called flow double-mode and double-standby terminal user, receive after the routing inquiry message of carrying MSISDN and this call bearer ability, according to the User Status of two kinds of access styles of the described bearing capacity IMSI associated with described MSISDN, select access style;

Described number acquisition module, for the equipment of the core network sign corresponding according to selected access style, asks corresponding equipment of the core network for a MSRN of this IMSI distribution, and the MSRN obtaining is transmitted back to the transmit leg of routing inquiry message.

Preferably, described subscribed services device also can have following characteristics:

Described information management module is further used for:

Described information management module is further used for, and receives and removes after user message, if carry user's IMSI and a kind of access style in this removing user message, the User Status of this access style of this IMSI is stamped to unreachable sign; If this message is only carried user's IMSI, or carry user's IMSI and all access styles corresponding to this IMSI, this user's IMSI is stamped to all access styles of unreachable sign or this IMSI and all stamp unreachable sign.

In order to address the above problem, the invention provides a kind of double-mode and double-standby terminal and realize the method that position is upgraded, comprising:

In the time of can using the double-mode and double-standby terminal access network of two kinds of networks of an international mobile subscriber identity (IMSI) access, select access style, and carry this IMSI or temporary mobile subscriber identity (TMSI) in the primary importance update request sending, wherein this TMSI is corresponding with this IMSI and access style;

The equipment of the core network of described double-mode and double-standby terminal access is received after described primary importance update request, carries the access style information of this IMSI, this equipment of the core network sign and this access in the second place update request sending to subscribed services device;

Described subscribed services device is received after described second place update request, and this IMSI and the corresponding equipment of the core network sign of access style are preserved or be updated to the equipment of the core network sign of carrying in described second place update request.

Preferably, described method also can have following characteristics:

Before described double-mode and double-standby terminal access network, in described subscribed services device, preserve the two cover business datums that correspond respectively to two kind access styles associated with described IMSI;

Described subscribed services device receives after described second place update request, and subscribed services device inserts subscription data to described equipment of the core network;

Described subscription data comprises MSISDN that this IMSI, this IMSI are corresponding and a set of business datum corresponding with the access style of this access, or, comprise MSISDN and all business datums corresponding with this IMSI that this IMSI, this IMSI are corresponding.

Preferably, described method also can have following characteristics:

Described subscribed services device is received after described second place update request, as preserved before this equipment of the core network sign that this IMSI and access style are corresponding, according to this IMSI preserving before this and equipment of the core network sign corresponding to access style, to corresponding equipment of the core network, send delete position request, then be the equipment of the core network sign of carrying in described second place update request by this IMSI and equipment of the core network identification renewal corresponding to access style.

Preferably, described method also can have following characteristics:

Two kinds of access styles of described double-mode and double-standby terminal, refer to from strengthening global system for mobile communications Radio Access Network (GERAN) access of data rate and accessing from universal land radio access web (UTRAN);

The equipment of the core network of described double-mode and double-standby terminal access refers to from the mobile switching center/visitor location register (MSC/VLR) of GERAN access, from the mobile interaction center server/media gateway (MSCS/MGW) of UTRAN access; Or, refer to from the MSCS/MGW of GERAN and UTRAN access.

Preferably, described method also can have following characteristics:

Indicating of version field in the indication information user classification 2 of described dual-mode dual-standby ability.

Preferably, described method also can have following characteristics:

Corresponding two the different TMSI of two kinds of access styles of this IMSI, or, a corresponding identical TMSI.

Preferably, described method also can have following characteristics:

Described double-mode and double-standby terminal carries dual-mode dual-standby capability indication information in the primary importance update request sending to described equipment of the core network; While carrying dual-mode dual-standby capability indication information in the position updating request that described equipment of the core network judgement is received, in the second place update request sending to described subscribed services device, carry the access style information of this access; Or

Described equipment of the core network knows from subscribed services device whether the terminal of access has dual-mode dual-standby ability by authorizing procedure, if had, carries the access style information of this access in the position updating request sending to described subscribed services device.

In order to address the above problem, the invention provides the system that a kind of position is upgraded, comprise double-mode and double-standby terminal, equipment of the core network and subscribed services device, wherein:

Double-mode and double-standby terminal can be used two kinds of networks of an international mobile subscriber identity (IMSI) access, for when described double-mode and double-standby terminal access network, select access style, and carry this IMSI or temporary mobile subscriber identity (TMSI) in the primary importance update request sending, wherein this TMSI is corresponding with this IMSI and access style;

Described equipment of the core network is used for receiving after described primary importance update request, carries the access style information of this IMSI, this equipment of the core network sign and this access in the second place update request sending to subscribed services device;

Described subscribed services device is used for receiving after described second place update request, and this IMSI and the corresponding equipment of the core network sign of access style are preserved or be updated to the equipment of the core network sign of carrying in described second place update request.

Preferably, described system also can have following characteristics:

Described subscribed services device is further used for preserving the two cover business datums that correspond respectively to two kind access styles associated with described IMSI, receives after described second place update request, to described equipment of the core network, inserts subscription data;

Preferably, described system also can have following characteristics:

Described subscribed services device is further used for receiving after described second place update request, as preserved before this equipment of the core network sign that this IMSI and access style are corresponding, according to this IMSI preserving before this and equipment of the core network sign corresponding to access style, to corresponding equipment of the core network, send delete position request, then be the equipment of the core network sign of carrying in described second place update request by this IMSI and equipment of the core network identification renewal corresponding to access style.

Preferably, described system also can have following characteristics:

Described equipment of the core network is further used for, and while carrying dual-mode dual-standby capability indication information in the position updating request that judgement is received, carries the access style information of this access in the second place update request sending to described subscribed services device; Or by authorizing procedure, from subscribed services device, know whether the terminal of access has dual-mode dual-standby ability, if had, in the position updating request sending to described subscribed services device, carry the access style information of this access.

Adopt the present invention, double-mode and double-standby terminal can be used same MSISDN to be linked into heterogeneous networks, and a user is without selecting MSISDN.And owing to using an IMSI number, user can use a card just to access two kinds of networks, thereby has good experience.

Accompanying drawing explanation

Fig. 1 is the two connecting system Organization Charts of existing network;

Fig. 2 is the user position update flow chart based on existing network;

Fig. 3 is the user's calling procedure figure based on existing network;

Fig. 4 is the user's called flow figure based on existing network;

Fig. 5 is the schematic diagram of the first network architecture of communication system of the present invention;

Fig. 6 is that the embodiment of the present invention one double-mode and double-standby terminal based on Fig. 5 is realized the flow process that position is upgraded;

Fig. 7 is the flow process that the embodiment of the present invention three double-mode and double-standby terminals are realized calling service;

Fig. 8 is the flow process that the double-mode and double-standby terminal based on Fig. 5 is realized called service;

Fig. 9 is the schematic diagram of the second network architecture of communication system of the present invention;

Figure 10 is that the embodiment of the present invention two double-mode and double-standby terminals based on Fig. 6 are realized the flow process that position is upgraded;

Figure 11 is the flow process that the double-mode and double-standby terminal based on Fig. 9 is realized called service;

Figure 12 is the flow process that the double-mode and double-standby terminal based on Fig. 9 is removed user.

Embodiment

Hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.

In literary composition by the type of the wireless access network of terminal access referred to as access style (Radio Access Type is called for short RAT), sometimes also by double-mode and double-standby terminal referred to as terminal.

Embodiment mono-

In the present embodiment, the user of double-mode and double-standby terminal can use 1 IMSI number to access multiple wireless access network simultaneously, the corresponding MSISDN of this IMSI.After the signing two kinds of access styles of user, subscribed services device is as at least preserved this user's IMSI and the two cover business datums that correspond respectively to two kind access styles associated with this IMSI in HLR/HSS.

The communication system of the present embodiment adopts the network architecture of minute core net mode shown in Fig. 5.As shown in Figure 5, this communication system comprises:

Double-mode and double-standby terminal UE.

The first wireless access network AN1, the present embodiment be take GERAN as example, and access style when terminal is accessed from AN1 is designated as 2G.

The second wireless access network AN2, the present embodiment be take UTRAN as example, and access style when terminal is accessed from AN2 is designated as 3G.

The first equipment of the core network CN1 and CN2, for supporting AN1 access, in the present embodiment, CN1 and CN2 support the CS network element MSC of GERAN access and VLR to form.

The second equipment of the core network CN3 and CN4, for supporting AN2 access, in the present embodiment, CN3 and CN4 support the MSCS of UTRAN access and MGW to form.

Gateway exchange and the GMSC/TMSC of tandem exchange, gateway exchange (GMSC) is mainly used for routing addressing, and TMSC arrives other networks for tandem.

Subscribed services device (attaching position register HLR/ home subscriber server HSS), for preserving user data as subscription data, IMSI, MSISDN etc., the user data using while supporting to preserve double-mode and double-standby terminal from AN1 and AN2 access;

Other networks are mainly other mobile networks or fixed network.

The function of the AN1 of this communication system, AN2, GMSC/TMSC and other networks is all consistent with existing network system.CN2, CN4 can equally with CN1, CN3 do identical change, also can not change, and only part equipment of the core network are done and are upgraded.

In Fig. 5, the first equipment of the core network and the first wireless access network belong to first network, the second equipment of the core network and the second wireless access network belong to second network, first network and second network can be GSM and WCDMA, CDMA and CDMA2000, GSM and TD-SCDMA, WCDMA and CDMA2000, TD-SCDMA and CDMA2000 etc., be not limited to specific two kinds of networks.

The double-mode and double-standby terminal of the present embodiment can be used 1 IMSI to access two kinds of wireless access networks simultaneously.

During double-mode and double-standby terminal access network, select access style, and carry this IMSI or TMSI in the position updating request sending, can also carry dual-mode dual-standby capability indication information.

Wherein, this TMSI is corresponding with this IMSI and access style, in the situation that dividing core net mode, and the different access styles of an IMSI, conventionally corresponding different TMSI.

Equipment of the core network CN1 after the present embodiment upgrading and CN3 are after receiving the position updating request that double-mode and double-standby terminal sends, as judged, in this position updating request, carry dual-mode dual-standby capability indication information, while sending position updating request to subscribed services device (HLR/HSS), carry the access style information of IMSI, this equipment of the core network sign and this access of current use.As do not carried dual-mode dual-standby capability indication information in the position updating request of terminal transmission, CN1 and CN3 can process by existing procedure.But in another embodiment, equipment of the core network also can not judge in position updating request whether carry dual-mode dual-standby capability indication information, all carries access style information in the position updating request sending to subscribed services device.In another embodiment, equipment of the core network also can know from subscribed services device whether terminal has dual-mode dual-standby ability by authorizing procedure, if had, then carries access style information in the position updating request sending to subscribed services device.

The equipment of the core network sign of the present embodiment comprises MSC address and VLR number.

For the present embodiment, CN1 and CN3 correspond respectively to a kind of access style, and the access style that the position updating request that CN1 initiates is carried is 2G, and the access style that the position updating request that CN3 initiates is carried is 3G.

After the signing two kinds of access styles of user, subscribed services device is at least preserved signing IMSI, the two kinds of access styles that use of this user and is corresponded respectively to two cover business datums of these two kinds of access styles.Subscribed services device is received after the position updating request that comprises access style information of equipment of the core network transmission, IMSI wherein and equipment of the core network sign corresponding to access style are preserved or are updated to the equipment of the core network sign in this position updating request, and inserting subscription data to this equipment of the core network, described subscription data comprises this IMSI and a set of business datum corresponding with the access style of this access.After position is updated successfully, the User Status of this access style is set to attached state.

Subscribed services device is received after the position updating request that comprises access style information of equipment of the core network transmission, as preserved before this IMSI and equipment of the core network sign corresponding to access style in position updating request, except this IMSI and equipment of the core network corresponding to access style sign are upgraded, the equipment of the core network transmission delete position request also identifying to this IMSI preserving before this and equipment of the core network corresponding to access style.To delete terminal, use before this subscription data of preserving in the equipment of the core network of this IMSI and access style access.

The present embodiment double-mode and double-standby terminal is realized the flow process of upgrading position and is comprised:

Step 1, in the time of can using 1 IMSI to access the double-mode and double-standby terminal access network of a plurality of networks, selects access style, in the primary importance update request sending, carries dual-mode dual-standby capability indication information, and this IMSI or TMSI corresponding to this IMSI;

Version (Revision Level) field of described dual-mode dual-standby ability in can user's classification 2 indicated, and as when this field is " 11 ", for identifying this terminal, has dual-mode dual-standby ability.

Step 2, the equipment of the core network of this double-mode and double-standby terminal access is received after primary importance update request, carries the access style information of this IMSI, this equipment of the core network sign and this access in the second place update request sending to subscribed services device;

During the network architecture based on the present embodiment, the position updating request that equipment of the core network sends to subscribed services device is used MAP location update request message.But the present invention is not limited to this, during the network architecture based on other, can adopt other message of respective protocol regulation.

Step 3, subscribed services device is received after second place update request, this IMSI and equipment of the core network sign corresponding to access style are preserved or are updated to the equipment of the core network sign in this second place update request, and insert subscription data to described equipment of the core network, described subscription data comprises this IMSI and MSISDN corresponding to this IMSI, and corresponding to a set of business datum of the access style of this access.

If the access style in second place update request is 2G, insert a set of business datum that will use when user accesses by 2G wireless access network; If the access style in second place update request is 3G, insert a set of business datum that will use when user accesses by 3G wireless access network.

In addition, subscribed services device is received after the position updating request that comprises access style information of equipment of the core network transmission, as preserved before this IMSI and equipment of the core network sign corresponding to access style in position updating request, according to this IMSI preserving before this and equipment of the core network sign corresponding to access style, to corresponding equipment of the core network, send delete position request, then be the equipment of the core network sign of carrying in described second place update request by this IMSI and equipment of the core network identification renewal corresponding to access style.

In addition, in another embodiment, this user's who preserves in subscribed services device subscription data can be also a set of subscription data that can be used for two kinds of access styles, now regardless of access style, all this cover subscription data is inserted to equipment of the core network.

Above flow process has mainly been described the different disposal of the present embodiment position update flow and existing position update flow, and the relevant treatment of not mentioning, as authentication etc., can adopt the processing mode in existing position update flow.

Below in conjunction with Fig. 6, above-mentioned position update flow is described in detail.

601, double-mode and double-standby terminal UE is that the mode that GERAN accesses selects IMSI or TMSI1 corresponding to 2G access way to carry out access procedure according to the network coverage situation of AN1 and its AN1;

602, UE passes through wireless access network AN1 to CN1 launch position update request message, described message is carried the type that this position is upgraded, represent common position renewal or periodic location update, or IMSI adheres to, described message is also carried IMSI, or step 601 is selected TMSI1 corresponding to 2G access way, described message also comprises Location Area Identification LAI, described message comprises class of subscriber 1 (Mobile Station Classmark 1) or class of subscriber 2 (Mobile Station Classmark 2), especially, in this example, when version (Revision Level) field in class of subscriber 2 is wherein " 11 ", be used for identifying this terminal and there is dual-mode dual-standby ability,

603, CN1 realizes authentication process to UE, specifically describes with reference to step 202～205 in background technology;

604, after the IMSI authentication success of UE, to HLR/HSS, send MAP (Mobile Application Part, be called for short MAP) location update request message (MAP UPDATE LOCATION), described message is carried user ID IMSI, CN1 sign, i.e. MSC address and VLR number and RAT, RAT is used for indicating the access network type of UE, i.e. 2G access;

605, HLR/HSS checks whether the equipment of the core network sign that IMSI, RAT are corresponding is empty, empty if, IMSI and equipment of the core network sign corresponding to RAT are saved as to the equipment of the core network sign in message, execution step 608, if be not empty, carries out subsequent step 606;

606, in step 605, HLR/HSS checks that the equipment of the core network sign that IMSI, RAT are corresponding is not empty, and the corresponding CN2 network of the MSC address of preserving and VLR number, represent that user roams into CN1 network from CN2, HLR/HSS upgrades the corresponding relation of IMSI and RAT and equipment of the core network sign, MSC address and VLR number that corresponding MSC address and VLR number are revised as CN1, HLR/HSS sends MAP delete position request message (MAP CANCEL LOCATION) to CN2, and described message is carried user ID IMSI, RAT;

607, CN2 deletes after the subscription data of preserving, to HLR/HSS loopback MAP delete position request response;

If CN2 is not familiar with RAT parameter, delete all subscription data that this IMSI is corresponding, if CN2 understanding RAT parameter is deleted the subscription data that RAT is corresponding, i.e. 2G subscription data.

608, HLR/HSS sends MAP to CN1 and inserts subscriber data message (MAP INSERT SUBSCRIBER DATA), the subscription data that described message is carried comprises IMSI, business datum and mobile subscriber number (the Mobile Subscriber International ISDN/PSTNnumber corresponding with access style 2G, be called for short MSISDN), wherein ISDN is integrated services digital network, it is the abbreviation of Integrated Service Digital Network, PSTN is exactly PSTN, is the abbreviation of Public Switched Telephone Network;

609, CN1 receives that MAP inserts after subscriber data message, preserves user's subscription data (comprising business datum, Subscriber Number IMSI, MSISDN and RAT), to HLR/HSS loopback MAP, inserts user data response message;

610, HLR/HSS is to CN1 loopback MAP position updating request response message, and the User Status of the RAT1 of this IMSI is set to attached state;

611, with reference to 212～213 of background technology, describe;

Step 611 is optional process, can not carry out ciphering process according to the equipment situation of operator.

612, CN1 sends position by AN1 to UE and upgrades acknowledgement message, if network need to be redistributed TMSI, described message can comprise the heavy assignment command message of TMSI, and described TMSI is heavy, and assignment commands is carried the new TMSI1 of network allocation;

If CN1 supports double-mode and double-standby terminal access, described message also can be carried the ability indication of network support dual-mode dual-standby.

613, UE preserves after new TMSI1, to CN1, sends TMSI Reallocation Complete message.

If step 612 is without the heavy assignment command message of TMSI, UE completes in step 612 position that is linked into CN1 by AN1 and upgrades, if comprised, UE completes in step 613 step the position that is linked into CN1 by AN1 and upgrades.

614, UE selects IMSI or TMSI2 corresponding to 3G access way, in AN2, CN3, CN4 and HLR/HSS, does similar step 602～613, completes TMSI2 corresponding to IMSI or 3G access way at the position updating process of CN3.

Double-mode and double-standby terminal access is accessed CN1 or is linked into CN3 order in no particular order by AN2 by AN1, CN1 and the in store user's of CN3 identical Mobile Subscriber International ISDN Number and IMSI after accessing successfully, in double-mode and double-standby terminal, preserve two new TMSI, the corresponding TMSI1 of 2G access way, the corresponding TMSI2 of 3G access way.

Embodiment bis-

The communication system of the present embodiment adopts the network architecture of the common core net mode shown in Fig. 9.As shown in Figure 9, this communication system comprises:

Double-mode and double-standby terminal UE.

Other networks are mainly other mobile networks or fixed network.

This communication system in the function of AN1, AN2, CN4, GMSC/TMSC and other networks, be all consistent with existing network system, wherein CN4 also can equally with CN3 do identical change, also can not change.

In Fig. 9, the first wireless access network belongs to first network, and the second wireless access network belongs to second network, and the second equipment of the core network had both belonged to first network, also belongs to second network; First network and second network can be GSM and WCDMA, CDMA and CDMA2000, and GSM and TD-SCDMA, WCDMA and CDMA2000, TD-SCDMA and CDMA2000 etc., be not limited to specific two kinds of networks.

Wherein, this TMSI is corresponding with this IMSI and access style, the in the situation that of common core net mode, and the different access styles of an IMSI, TMSI that can be corresponding different, TMSI that also can be corresponding identical.

Equipment of the core network CN3 after the present embodiment upgrading is after receiving the position updating request that double-mode and double-standby terminal sends, as judged, in this position updating request, carry dual-mode dual-standby capability indication information, while sending position updating request to subscribed services device (HLR/HSS), carry the access style information of IMSI, this equipment of the core network sign and this access of current use.As do not carried dual-mode dual-standby capability indication information in the position updating request of terminal transmission, CN3 can process by existing procedure.But in another embodiment, equipment of the core network also can not judge in position updating request whether carry dual-mode dual-standby capability indication information, all carries access style information in the position updating request sending to subscribed services device.In another embodiment, equipment of the core network also can know from subscribed services device whether terminal has dual-mode dual-standby ability by authorizing procedure, if had, then carries access style information in the position updating request sending to subscribed services device.

For the present embodiment, CN3 is corresponding to two kinds of access styles, i.e. 2G and 3G, and AN1 and AN2 are all linked into CN3.

After the signing two kinds of access styles of user, subscribed services device is at least preserved signing IMSI, the two kinds of access styles that use of this user and is corresponded respectively to two cover business datums of these two kinds of access styles.Subscribed services device is received after the position updating request that comprises access style information of equipment of the core network transmission, IMSI wherein and equipment of the core network sign corresponding to access style are preserved or are updated to the equipment of the core network sign in this position updating request, and insert subscription data to this equipment of the core network, described subscription data comprises this IMSI and a set of business datum corresponding with the access style of this access, or, comprise this IMSI and all business datums (two cover business datum) corresponding with this IMSI.After position is updated successfully, the User Status of this access style is set to attached state.

Step 1, in the time of can using 1 IMSI to access the double-mode and double-standby terminal access network of a plurality of networks, selects access style, in the primary importance update request sending, carries dual-mode dual-standby capability indication information, and this IMSI or TMSI; Wherein, this TMSI is corresponding with this IMSI and access style;

Step 3, subscribed services device is received after second place update request, this IMSI and equipment of the core network sign corresponding to access style are preserved or are updated to the equipment of the core network sign in this second place update request, and insert subscription data to described equipment of the core network, described subscription data comprises this IMSI and MSISDN corresponding to this IMSI, and corresponding to a set of business datum or all business datums corresponding to this IMSI of the access style of this access.

Below in conjunction with Figure 10, above-mentioned position update flow is described in detail.

1001, double-mode and double-standby terminal is according to network coverage situation, by wireless access network AN1 to CN3 launch position update request message, described message is carried the type that this position is upgraded, represent common position renewal or periodic location update, or IMSI adheres to, described message also carries IMSI or double-mode and double-standby terminal selects 2G to access corresponding TMSI1, described message also comprises Location Area Identification LAI, described message comprises class of subscriber 1 (Mobile Station Classmark 1) or class of subscriber 2 (Mobile Station Classmark 2), in this example, when version (Revision Level) field in class of subscriber 2 is wherein " 11 ", be used for identifying this terminal and there is dual-mode dual-standby ability,

1002, CN3 realizes 2G authentication process to UE, specifically describes with reference to step 202～205 in background technology;

1003, after the 2G authentication success of UE, CN1 sends MAP (Mobile Application Part to HLR/HSS, be called for short MAP) location update request message (MAP UPDATE LOCATION), described message is carried user ID IMSI, CN3 sign, be MSC address and VLR number, in described message, carry the access style RAT1 that this position is upgraded, according to the access way of AN1, this access style is 2G access;

If terminal is non-double-mode and double-standby terminal, described message can not carried this access style RAT1;

1004, HLR/HSS checks whether this IMSI and equipment of the core network sign corresponding to access style 2G are empty, empty if, IMSI and equipment of the core network sign corresponding to 2G are saved as to the equipment of the core network sign in message, execution step 1007, if be not empty, carries out subsequent step 1005;

1005, if HLR/HSS checks that this IMSI and equipment of the core network sign corresponding to access style 2G are not sky in step 1004, and the corresponding CN4 network of the MSC address of preserving and VLR number, represent that user roams into CN3 network from CN4, HLR/HSS upgrades the corresponding relation of IMSI and RAT1 and equipment of the core network sign, MSC address and VLR number that corresponding MSC address and VLR number are revised as CN3, HLR/HSS sends MAP delete position request message (MAP CANCEL LOCATION) to CN4, described message is carried user ID IMSI, described message is also carried access style RAT1, here RAT1 is 2G,

1006, CN4 deletes after the subscription data of preserving, to HLR/HSS loopback MAP delete position request response;

If CN4 is not familiar with RAT parameter, delete all subscription data that this IMSI is corresponding, if CN4 understanding RAT parameter is deleted the subscription data that RAT is corresponding, i.e. 2G subscription data.

1007, HLR/HSS sends MAP to CN3 and inserts subscriber data message (MAP INSERT SUBSCRIBER DATA), the subscription data that described message is carried comprises IMSI, business datum and mobile subscriber number (the Mobile Subscriber International ISDN/PSTNnumber corresponding with access style 2G, be called for short MSISDN), wherein ISDN is integrated services digital network, it is the abbreviation of Integrated Service Digital Network, PSTN is exactly PSTN, is the abbreviation of Public Switched Telephone Network;

Here can insert the subscription data (being the subscription data of 2G or 3G) of all access waies, situation about accessing from 3G is like this just without this step simultaneously.

1008, CN3 receives that MAP inserts after subscriber data message, and the subscription data (comprising business datum, Subscriber Number IMSI, MSISDN and RAT1) of preserving user inserts user data response message to HLR/HSS loopback MAP;

1009, HLR/HSS is to CN3 loopback MAP position updating request response message;

1010, with reference to 212～213 of background technology, describe;

Step 1010 is optional process, can not carry out ciphering process according to the equipment situation of operator.

1011, CN3 sends position by AN1 to UE and upgrades acknowledgement message, if network need to be redistributed TMSI, described message can comprise the heavy assignment command message of TMSI, described TMSI is heavy, and assignment commands is carried the new TMSI1 of network allocation, and described message also can be carried the ability indication of network support dual-mode dual-standby;

1012, UE preserves after new TMSI1, to CN3, sends TMSI Reallocation Complete message.

If step 1011 is without the heavy assignment command message of TMSI, UE completes in step 1011 position that is linked into CN1 by AN1 and upgrades, if comprised, UE completes in step 1012 step the position that is linked into CN1 by AN1 and upgrades.

If step 1001～1012 failure, or step 1011 is carried the ability indication of network support dual-mode dual-standby, carry out following step, 1001～1012 executing location are updated successfully else if, and step 1011 is not carried network support dual-mode dual-standby ability, do not carry out following steps, double-mode and double-standby terminal is used as double-mode single-standby terminal.

S1001, double-mode and double-standby terminal is according to network coverage situation, by wireless access network AN2 to CN3 launch position update request message, described message is carried the type that this position is upgraded, represent common position renewal or periodic location update, or IMSI adheres to, described message is also carried IMSI, or double-mode and double-standby terminal selects 3G to access corresponding TMSI2, described message also comprises Location Area Identification LAI, described message comprises class of subscriber 1 (Mobile Station Classmark 1) or class of subscriber 2 (Mobile Station Classmark 2), in this example, when version (Revision Level) field in class of subscriber 2 is wherein " 11 ", be used for identifying this terminal and there is dual-mode dual-standby ability,

S1002, CN3 realizes 3G authentication process to UE, specifically describes with reference to step 202～205 in background technology;

S1003, after the 3G authentication success of UE, CN3 sends MAP (Mobile Application Part to HLR/HSS, be called for short MAP) location update request message (MAP UPDATE LOCATION), described message is carried user ID IMSI, CN3 sign, be MSC address and VLR number, in described message, carry the access style RAT2 that this position is upgraded, according to the access way of AN2, this access style is 3G access;

If terminal is non-double-mode and double-standby terminal, described message can not carried this access style RAT2;

S1004, HLR/HSS checks whether the equipment of the core network sign that access style 3G is corresponding is empty, empty if, IMSI and equipment of the core network sign corresponding to 3G are saved as to the equipment of the core network sign in message, execution step S1007, if be not empty, carries out subsequent step S1005;

S1005, in step S1004, HLR/HSS checks that this IMSI and equipment of the core network sign corresponding to access style 3G are not sky, and the corresponding CN4 network of the MSC address of preserving and VLR number, represent that user roams into CN3 network from CN4, HLR/HSS upgrades the corresponding relation of IMSI and RAT2 and equipment of the core network sign, MSC address and VLR number that corresponding MSC address and VLR number are revised as CN3, HLR/HSS sends MAP delete position request message (MAP CANCEL LOCATION) to CN4, described message is carried user ID IMSI, described message is also carried access style RAT2, here RAT2 is 3G,

S1006, CN4 deletes after the subscription data of preserving, to HLR/HSS loopback MAP delete position request response;

Because 3G covers and 2G is coated with difference, may occur that step S1005 is different from CN4 in step 1005 and 1006 with CN4 in S1006, but other network insertion, so MSC address and VLR number under the 2G access of HLR/HSS preservation before position is upgraded and under 3G access may be not identical.

S1007, HLR/HSS checks whether to CN3, inserted 3G subscription data, if inserted, S1007～S1008 does not carry out, if do not inserted, HLR/HSS sends MAP to CN3 and inserts subscriber data message (MAP INSERT SUBSCRIBER DATA), the subscription data that described message is carried comprises IMSI, the business datum corresponding with access style 2G and mobile subscriber number (Mobile Subscriber IntemationalISDN/PSTN number, be called for short MSISDN), wherein ISDN is integrated services digital network, it is the abbreviation of Integrated Service Digital Network, PSTN is exactly PSTN, it is the abbreviation of Public Switched Telephone Network,

S1008, CN3 receives that MAP inserts after subscriber data message, preserves user's subscription data (comprising business datum, Subscriber Number IMSI, MSISDN and RAT2), to HLR/HSS loopback MAP, inserts user data response message;

S1009, HLR/HSS is to CN3 loopback MAP position updating request response message;

S1010, describes with reference to 212～213 of background technology;

Step S1010 is optional process, can not carry out ciphering process according to the equipment situation of operator.

S1011, CN3 sends position by AN2 to UE and upgrades acknowledgement message, if network need to be redistributed TMSI, described message can comprise the heavy assignment command message of TMSI, described TMSI is heavy, and assignment commands is carried the new TMSI2 of network allocation, and described message also can be carried the ability indication of network support dual-mode dual-standby;

S1012, UE preserves after new TMSI2, to CN3, sends TMSI Reallocation Complete message.

If step S1011 is without the heavy assignment command message of TMSI, UE completes at step S1011 the position that is linked into CN1 by AN1 and upgrades, if comprised, UE has walked at step S1012 the position that is linked into CN1 by AN1 and upgrades.

Double-mode and double-standby terminal access access CN3 or is linked into CN3 order in no particular order by AN2 by AN1, accesses successfully afterwards two cover information under the in store user's of CN3 duplicate numbers, preserves two new TMSI:TMSI1 and TMSI2 in double-mode and double-standby terminal.

Embodiment tri-

The present embodiment relates generally to double-mode and double-standby terminal and how according to type of service and access situation, to select wireless access network to carry out business.The present embodiment can be based on Fig. 5 the network architecture of minute core net mode, the network architecture of common core net mode that also can be based on shown in Fig. 9.

Double-mode and double-standby terminal can access the first wireless access network and the second wireless access network.In the present embodiment, the second wireless access network in Fig. 5 or Fig. 9 is the evolvement network of the first wireless access network, and with respect to the first wireless access network, the access capability of the second wireless access network is stronger.

When double-mode and double-standby terminal is initiated calling service, according to user's type of service, select an access style that can use (registered), the wireless access network corresponding by this access style carries out business.

Can use TMSI that this access style is corresponding to access corresponding wireless access network and carry out business.

Take the first wireless access network as 2G wireless access network, and the second wireless access network is that 3G wireless access network is example, in the following manner network selection.

If double-mode and double-standby terminal from 2G and the access of 3G wireless access network, when calling service is speech business, is selected 2G access style; At calling service, be data service, during as facsimile service and video traffic, select 3G access style.

If double-mode and double-standby terminal, only from the access of 2G wireless access network, when calling service is the facsimile service in speech business or data service, is selected 2G access style; When calling service is the video traffic in data service, this data service is revised as to speech business, and selects 2G access style.

If double-mode and double-standby terminal is only from the access of 3G wireless access network, no matter calling service is speech business or data service, all selects 3G access style.

Network selection in the manner described above, is guaranteeing, under the prerequisite of user's proper communication, to select to have the network of better communication quality and service, and customer volume that can balancing network, makes full use of Internet resources.

The flow process that the present embodiment double-mode and double-standby terminal is realized to calling service below in conjunction with Fig. 7 is described in detail.

701, double-mode and double-standby terminal is selected corresponding access style or TMSI corresponding to access style to be linked into according to type of service in the network corresponding with it, to carry out business, when calling service is speech business, preferential selection accesses corresponding TMSI1 with 2G access or 2G and is linked into CN1 from AN1, when calling service is the facsimile service in data service, preferential selection accesses corresponding TMSI2 with 3G access or 3G and is linked into CN3 from AN2, when video traffic that calling service is data service, only select to access corresponding TMSI2 with 3G access or 3G and be linked into CN3 from AN2, if double-mode and double-standby terminal is not in the coverage of AN2, double-mode and double-standby terminal changes speech business into, with 2G access or 2G, access corresponding TMSI1 and be linked into CN1 from AN1.

702～712, with reference to background technology 301～311, describe.

Complete since then the caller Establishing process of dual-mode dual-standby UE.

Embodiment tetra-

The communication system of the present embodiment can adopt the network architecture of minute core net mode shown in Fig. 5, also can adopt the network architecture of the common core net mode shown in Fig. 9.

In the present embodiment, it is GSM and WCDMA that the first network in Fig. 5 or Fig. 9 and second network are not limited to, as being CDMA and CDMA2000, GSM and TD-SCDMA etc.Wherein, the second wireless access network is the evolvement network of the first wireless access network, and with respect to the first wireless access network, the access capability of the second wireless access network is stronger.

With regard to called relevant processing, need to upgrade as the function of HLR/HSS to subscribed services device, to select called network according to the bearing capacity of this calling and User Status.Other network element as terminal, wireless access network, equipment of the core network, GMSC/TMSC etc. can be same as the prior art to called relevant processing logic.

The subscribed services device of the present embodiment comprises:

Information management module, for preserve a MSISDN that double-mode and double-standby terminal user contracts, associated with this MSISDN IMSI and with the associated two kinds of access styles of this IMSI.

Network selection module, for the called flow double-mode and double-standby terminal user, receive after the routing inquiry message of carrying MSISDN and this call bearer ability, according to the User Status of two kinds of access styles of the described bearing capacity IMSI associated with described MSISDN, select access style.

Number acquisition module, for the equipment of the core network sign corresponding according to selected access style, asks corresponding equipment of the core network for a MSRN of this IMSI distribution, and the MSRN obtaining is transmitted back to the transmit leg of routing inquiry message.

Wherein,

If the User Status of two kinds of access styles is not all attached state, network selection module can be refused this calling.If while having at least a kind of User Status of access style to be attached state, can select in the following manner:

User for double-mode and double-standby terminal, two kinds of access styles are all associated under a MSISDN, so other users only need to dial identical MSISDN while calling out this user, select access style to connect called by network side, be very easy to user, improved user's experience.Further, select in the manner described above access style, can guarantee, under the prerequisite of user's proper communication, to select to have the network of better communication quality and service, and customer volume that can balancing network, make full use of Internet resources.

The called flow of the present embodiment double-mode and double-standby terminal is different main on the processing logic of subscribed services device from existing procedure, comprising:

Step 1, subscribed services device preserve a MSISDN that double-mode and double-standby terminal user contracts, associated with this MSISDN IMSI and with the associated two kinds of access styles of this IMSI;

Step 2, in the called flow of double-mode and double-standby terminal, subscribed services device is received after the routing inquiry message of carrying this call bearer ability and MSISDN, according to the User Status of two kinds of access styles of the described bearing capacity IMSI associated with described MSISDN, selects access style;

When the User Status of two kinds of access styles is attached state, can determine the access style using according to bearing capacity, select the equipment of the core network sign that this access style is corresponding.Concrete selection mode as described above.

Step 3, the equipment of the core network sign that subscribed services device is corresponding according to selected access style, ask corresponding equipment of the core network for a MSRN of this IMSI distribution, and the MSRN obtaining is transmitted back to the transmit leg of routing inquiry message, continue follow-up called flow.

The network architecture of minute core net mode based on Fig. 5, two kinds of equipments of the core network corresponding to access style of same MSISDN association are arranged in two different core net.In another embodiment, the network architecture of the common core net mode based on shown in Fig. 9, easily understands, and the above-mentioned steps that called flow comprises is the same, and just two kinds of equipments of the core network corresponding to access style are arranged in same core net.

The flow process that double-mode and double-standby terminal based on Fig. 5 framework is realized to called service below in conjunction with Fig. 8 is described in detail.

801～802, with the step 401 of prior art, 402 identical.

803, HLR/HSS finds the 2 kind User Status that access style corresponding associated with called number MSISDN of preservation, and selects in the following manner access style:

If the User Status of 2 kinds of access styles that this called number is corresponding is all attached state, i.e. both MSC address and the VLR number of CN1 under in store 2G access style, also MSC address and the VLR number of CN3 under in store 3G access style, HLR/HSS selects access style according to the bearing capacity in MAP routing inquiry message: if bearing capacity is speech business, preferentially select corresponding to 2G access style, if bearing capacity is the facsimile service in data service, the preferential 3G access style of selecting, if bearing capacity is the video traffic in data service, only select 3G access style (MSC address and the VLR number of corresponding CN3).

If only having the User Status that 3G access style is corresponding in 2 kinds of access styles corresponding to this called number is attached state, all business are all selected 3G access style.

If only having the User Status that 2G access style is corresponding in 2 kinds of access styles corresponding to this called number is attached state, for the facsimile service in speech business and data service, select 2G access style (MSC address and the VLR number of corresponding CN1), for the video traffic in data service, judge whether terminal has the ability that data service is revised as to speech business, if any, select 2G access style (MSC address and the VLR number of corresponding CN1), otherwise will refuse current video call.

804, HLR/HSS is according to called network corresponding to access style of selecting in step 803, here only take bearing capacity as speech business be example, other data services are analogized, MSC address and the VLR number of the corresponding CN1 of 2G access style that to inquire the User Status of preserving at HLR/HSS be activated state, to CN1, send the MAP request message that Provides Roaming Number, described message is carried called IMS I, the RAT under 2G access style, and described message is also carried the MSC number of CN1;

804, HLR/HSS selects according to called network in step 803, here only take bearing capacity as speech business be example, other data services are analogized, the 2G that to inquire the User Status of preserving at HLR/HSS be activated state accesses MSC address and the VLR number of corresponding CN1, to CN1, send the MAP request message that Provides Roaming Number, described message is carried called IMSI, RAT (2G access), and described message is also carried the MSC number of CN1;

805, CN1 is according to configuration, distributes a roaming number (Mobile Station Roaming Number is called for short MSRN) to corresponding IMSI, RAT, and CN1 carries MSRN to the HLR/HSS loopback MAP request response that Provides Roaming Number;

Follow-up flow process is referring to step 405～417 in prior art called flow.

The called voice service flow process of double-mode and double-standby terminal UE has been set up since then.Called data traffic flows HLR/HSS selects CN3 to obtain roaming number, and from AN2 paging double-mode and double-standby terminal UE, whole process is similar, is no longer repeated in this description.

The flow process that double-mode and double-standby terminal based on Fig. 9 framework is realized to called service below in conjunction with Figure 11 is described in detail.

1101～1102, with the step 401 of prior art, 402 identical.

1103, HLR/HSS finds the 2 kind User Status that access style corresponding associated with called number MSISDN of preservation, and selects in the following manner access style:

If the User Status of 2 kinds of access styles that this called number is corresponding is all attached state, i.e. both MSC address and the VLR number of CN3 under in store 2G access style, also MSC address and the VLR number of CN3 under in store 3G access style, HLR/HSS selects access style according to the bearing capacity in MAP routing inquiry message: if bearing capacity is speech business, preferentially select corresponding to 2G access style, if bearing capacity is the facsimile service in data service, the preferential 3G access style of selecting, if bearing capacity is the video traffic in data service, only select 3G access style (MSC address and the VLR number of corresponding CN3).

1104, HLR/HSS is according to the access style of selecting in step 1103, here only take bearing capacity as speech business be example, other data services are analogized, MSC address and the VLR number of the corresponding CN3 of 2G access style that to inquire the User Status of preserving at HLR/HSS be activated state, to CN3, send the MAP request message that Provides Roaming Number, described message is carried the called IMS I1 under 2G access style, and described message is also carried the MSC number of CN3;

1105, CN3 is according to configuration, distributes a roaming number (Mobile Station Roaming Number is called for short MSRN) to corresponding IMSI, RAT, and CN3 carries MSRN to the HLR/HSS loopback MAP request response that Provides Roaming Number;

Follow-up flow process is referring to step 405～417 in prior art called flow.

Embodiment five

The communication system of the present embodiment adopts the network architecture of minute core net mode shown in Fig. 9.

The present embodiment is mainly concerned with the improvement of equipment of the core network and subscribed services device.

When needs are deleted user, when equipment of the core network sends removing user message to subscribed services device, in this message, carry this user's IMSI, can also carry access style;

Particularly, this message is carry-on is combined as: this user's IMSI or this user's IMSI and corresponding access style or this user's IMSI and all access styles corresponding to this IMSI;

Subscribed services device receives after this removing user message, if carry this user's IMSI and a kind of access style in this message, the User Status of this access style of this IMSI is stamped to unreachable sign; If this message is only carried this user's IMSI, or carry this user's IMSI and all access styles corresponding to this IMSI, all access styles of this user's IMSI being stamped to unreachable sign or this IMSI are all stamped unreachable sign, like this, GMSC is during to subscribed services device request route, if subscribed services device inquires asked IMSI or the access style of the IMSI that asks has been stamped unreachable sign, directly reply errored response, errored response value is user's shutdown.

Correspondingly, information management module in above-described embodiment four also can be used for, receive and remove after user message, if carry user's IMSI and a kind of access style in this removing user message, the User Status of this access style of this IMSI is stamped to unreachable sign; If this message is only carried user's IMSI, or carry user's IMSI and all access styles corresponding to this IMSI, this user's IMSI is stamped to all access styles of unreachable sign or this IMSI and all stamp unreachable sign.

The method that double-mode and double-standby terminal based on Fig. 9 system architecture is realized to the flow process of removing mobile subscriber below in conjunction with Figure 12 is described in detail.

1201, CN1 is according to wherein VLR user's deletion, or its webmaster operation, to HLR/HSS, send MAP and remove user message (MAP Purge MS), described message is carried double-mode and double-standby terminal user's IMSI or this user's IMSI and the access style of correspondence or this user's IMSI and two kinds of access styles corresponding to this IMSI;

1202, when HLR/HSS receives that it is IMSI and corresponding access style that described MAP removes user message, the User Status of this access style of this IMSI is stamped to unreachable sign, if IMSI or 2 kinds of access styles are stamped unreachable sign by this user's IMSI or User Status corresponding to all access styles;

When User Status is stamped after unreachable sign, when GMSC asks route to HLR/HSS, if HLR inquires asked IMSI or the access style of the IMSI that asks has been stamped unreachable sign, directly to GMSC loopback errored response, errored response value is user's shutdown.

1203, HLR removes user message response message to CN1 loopback MAP.

One of ordinary skill in the art will appreciate that all or part of step in said method can come instruction related hardware to complete by program, described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits, and correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, and also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. an implementation method for called service, comprising:

In double-mode and double-standby terminal user's called flow, subscribed services device is received and is carried after the bearing capacity of this calling and the routing inquiry message of mobile subscriber number (MSISDN), according to the User Status of two kinds of access styles of the described bearing capacity IMSI associated with described MSISDN, select access style;

2. the method for claim 1, is characterized in that,

3. a subscribed services device, is characterized in that, comprising: information management module, network selection module and number acquisition module, wherein:

4. subscribed services device as claimed in claim 3, is characterized in that,

Described information management module is further used for:

5. subscribed services device as claimed in claim 4, is characterized in that,