CN103945346A - Method and system for realizing international roaming callback service - Google Patents
Method and system for realizing international roaming callback service Download PDFInfo
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- CN103945346A CN103945346A CN201310019741.XA CN201310019741A CN103945346A CN 103945346 A CN103945346 A CN 103945346A CN 201310019741 A CN201310019741 A CN 201310019741A CN 103945346 A CN103945346 A CN 103945346A
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Abstract
The invention discloses a method and a system for realizing international roaming callback service. According to the method, an unstructured supplementary service data (USSD) server queries a user authority database to judge whether a calling terminal has the authority to use the international roaming callback service; if the calling terminal does not have the authority, the USSD server suspends the international roaming callback service; and if the calling terminal has the authority, the USSD server calls the calling terminal back and calls a called terminal, wherein a USSD service authority server transmits international roaming user authority data to the USSD server through a data interface between the USSD service authority server and the USSD server. The method and the system have strong operability, meet the requirement on querying the authority of a calling subscriber while the characteristics of the existing technology, such as business process and networking structure, are not changed, shorten the time delay that the calling subscriber waits for the calling back, improve customer perception, reduce the overhead of a circuit and a signaling link in a system and lower the cost.
Description
Technical field
The present invention relates to mobile communication technology field, relate in particular to a kind of method and system of realizing international roaming call-back service.
Background technology
International roaming refers to that mobile phone user is when leaving national home network, still can at other networks in other countries and area, continue to use mobile phone to carry out communication, has Duo Jia operator and carries out this business, for example China Telecom.At present, there is double-mode card user in China Telecom, when double-mode card user mobile phone is in telecommunications cdma network lower time, mobile phone auto registration is to cdma network, when double-mode card user mobile phone is in lower time of GSM network of cooperation operator of China Telecom, mobile phone can be registered under GSM network, but Subscriber Number (China Telecom's Subscriber Number) is constant, and user's main home network is CDMA.Therefore,, when double-mode card user mobile phone is under the GSM network of cooperation operator of China Telecom, use the operation flow of USSD service roaming callback service (* * 133 business) as shown in Figure 1:
1, CtoG international roaming calling subscriber dials * * 133+ called number at GSM network side;
2-3, GSM net MSCe/VLR analyzes * * 133, thinks USSD business, and USSD request message is forwarded to USSD platform by GSM_MAP signaling Process_UNSTRUCTURE_SS_REQUEST.
4, USSD platform is received after message, by GSM_MAP signaling Process_UNSTRUCTURE_SS_NOTIFY message informing GSM net originating switch MSC/VLR, and direct clawback calling subscriber;
5-6, USSD platform by and China Telecom between repeat circuit call out called subscriber.If called, be mobile subscriber, by called HLR addressing.
7, called subscriber is idle, after paging success, has USSD platform to connect the calling passage between calling subscriber and called subscriber simultaneously.
From the above-mentioned CtoG of China Telecom international roaming user, when using GSM netsurfing clawback (* * 133) business, during USSD business platform clawback Calling Side user, without arriving Calling Side HLR query routing information, and directly arrive the paging caller of caller GSM side office.Therefore may cause when Calling Side CtoG user is at international roaming state during in defaulting subscriber or dialing restriction, this CtoG user still can use * * 133 business.
At present, the concrete solution of existing network is as follows:
1, USSD platform receives that CtoG international roaming calling subscriber is after the USSD of GSM network request, and to the C of China Telecom net, HLR initiates LocReq route information query.
2, the C host of China Telecom makes the HLR of user attaching receive after LocReq routing addressing information, and inquiry calling user information state (whether shutting down or dialing restriction), if calling subscriber's state normally returns to calling subscriber's routing iinformation to USSD platform.
There is following defect in this scheme:
During CtoG user's originating international roaming callback service (* * 133USSD business), all need to initiate LocReq to caller HLR, the time delay that USSD platform continues calling subscriber is longer, and client perception is poor.
It is mutual that all C net HLR of USSD business platform and China Telecom carry out signaling message, requires USSD business platform to possess C net MAP interaction capabilities.
When USSD business platform is connected calling subscriber, need to consume the expense of China Telecom's state's inboard circuit and signaling link, and from China Telecom state inner side to the circuit overhead between caller roaming side GSM MSC.
If therefore calling subscriber and called subscriber are the CtoG of China Telecom international roaming user, and roam to GSM network, while using international roaming clawback (* * 133) business, its Calling Side MSC and callee side MSC pass to international lateral circuit by USSD platform by the domestic side joint of China Telecom, compare with original flow process, and circuit and signaling consumption are larger, and, under existing solution, USSD business platform is possessed to certain C DMA Signalling exchange ability, aspect the network rebuilding, there is certain difficulty of implementing.
Summary of the invention
In view of this, the technical problem that the present invention will solve is to provide a kind of method that realizes international roaming call-back service, and USSD server judges according to international roaming user right whether user can use international roaming call-back service.
A method that realizes international roaming call-back service, comprising: unstructured supplementary data traffic USSD server receives international roaming call-back service request; Described USSD server lookup user rights database, judges whether calling terminal has the authority of using international roaming call-back service; When described calling terminal lack of competence, described USSD server interrupts this international roaming call-back service; When described calling terminal has authority, described this calling terminal of USSD server clawback, and call out terminal called; Wherein, USSD service authority server by and described USSD server between data-interface, to described USSD server, transmit international roaming user right data.
According to one embodiment of the method for the invention, further, described calling terminal is GC double-mode card terminal, and main home network is cdma network; Described calling terminal roams into GSM network overseas, uses international roaming call-back service; Described USSD service authority collection of server and resolve GC gateway and GSM network between signaling, generate international roaming user right data.
According to one embodiment of the method for the invention, further, the storage of USSD service authority database roams to the data of the GC double-mode card terminal of GSM network overseas; Data in described user rights database and described USSD service authority database all comprise: the IMSI of GC double-mode card GSM network, roaming GSM state and roaming callback service authority.
According to one embodiment of the method for the invention, further, described USSD service authority server parses roams to the GC double-mode card terminal authentication login GSM network of GSM network overseas to having, and in USSD service authority database, while not retrieving this user's GSM net IMSI, described USSD service authority server is newly-increased this user data information and service authority information in USSD service authority database; Described USSD service authority server parses is to having while having revised user profile through the HLR operation maintenance center in the cdma network of main ownership, and described USSD service authority server, in USSD service authority database, changes this user's service authority; Described USSD service authority server by and described USSD server between data-interface, the change that transmits in real time international roaming user right data to described USSD server.
According to one embodiment of the method for the invention, further, the GSM MAP_INSERT_SUB_DATA message of the GC double-mode card user of described USSD service authority server collection international roaming when authentication login GSM network; When in GSM INSERT_SUB_DATA message, in " ODB-GeneralData " field, the assignment of " allOG-CallsBarred " and " internationalOGCallsBarred " is " true ", this GC double-mode card user bans use of international roaming call-back service; " allOG-CallsBarredh " in " ODB-GeneralData " field and the assignment of " internationalOGCallsBarred " are when being faulse, and this GC double-mode card user can use international roaming call-back service.
According to one embodiment of the method for the invention, further, described calling terminal roams into GSM network, at GSM network side, uses international roaming call-back service; MSCE or VLR in GSM net are forwarded to USSD server by USSD request message by GSM_MAP signaling Process_UNSTRUCTURE_SS_REQUEST; Described USSD server is received after message, inquires about described user rights database, judges whether calling terminal has the authority of using international roaming call-back service; When described calling terminal lack of competence, described USSD server interrupts this international roaming call-back service; When described calling terminal has authority, described USSD server passes through GSM_MAP signaling Process_UNSTRUCTURE_SS_NOTIFY message informing GSM net originating switch MSC or VLR, directly clawback calling terminal; Described USSD server is by calling out terminal called with repeat circuit; After terminal called paging success, described USSD server is connected the calling passage between calling terminal and terminal called simultaneously.
The technical problem that the present invention will solve is to provide a kind of system that realizes international roaming call-back service, and USSD server judges according to international roaming user right whether user can use international roaming call-back service.
A system that realizes international roaming call-back service, comprising: USSD server, and for receiving international roaming call-back service request, inquiring user rights database, judges whether calling terminal has the authority of using international roaming call-back service; When described calling terminal lack of competence, described USSD server interrupts this international roaming call-back service; When described calling terminal has authority, described this calling terminal of USSD server clawback, and call out terminal called; User rights database, for storing user's business rights of using; USSD service authority server, for by and described USSD server between data-interface, to described USSD server, transmit international roaming user right data.
According to system of the present invention embodiment, further, described calling terminal is GC double-mode card terminal, and main home network is cdma network; Described calling terminal roams into GSM network overseas, uses international roaming call-back service; Described USSD service authority collection of server and resolve GC gateway and GSM network between signaling, generate international roaming user right data.
According to system of the present invention embodiment, further, USSD service authority database, roams to the data of the GC double-mode card terminal of GSM network overseas for storing; Data in described user rights database and described USSD service authority database all comprise: the IMSI of GC double-mode card GSM network, roaming GSM state and roaming callback service authority.
According to system of the present invention embodiment, further, described USSD service authority server parses roams to the GC double-mode card terminal authentication login GSM network of GSM network overseas to having, and in USSD service authority database, while not retrieving this user's GSM net IMSI, described USSD service authority server is newly-increased this user data information and service authority information in USSD service authority database; Described USSD service authority server parses is to having while having revised user profile through the HLR operation maintenance center in the cdma network of main ownership, and described USSD service authority server, in USSD service authority database, changes this user's service authority; Described USSD service authority server by and described USSD server between data-interface, the change that transmits in real time international roaming user right data to described USSD server.
According to system of the present invention embodiment, further, the GSMMAP_INSERT_SUB_DATA message of the GC double-mode card user of described USSD service authority server collection international roaming when authentication login GSM network; When in GSM INSERT_SUB_DATA message, in " ODB-GeneralData " field, the assignment of " allOG-CallsBarred " and " internationalOGCallsBarred " is " true ", this GC double-mode card user bans use of international roaming call-back service; " allOG-CallsBarredh " in " ODB-GeneralData " field and the assignment of " internationalOGCallsBarred " are when being faulse, and this GC double-mode card user can use international roaming call-back service.
According to system of the present invention embodiment, further, described calling terminal roams into GSM network, at GSM network side, uses international roaming call-back service; MSCE or VLR in GSM net are forwarded to USSD server by USSD request message by GSM_MAP signaling Process_UNSTRUCTURE_SS_REQUEST; Described USSD server is received after message, inquires about described user rights database, judges whether calling terminal has the authority of using international roaming call-back service; When described calling terminal lack of competence, described USSD server interrupts this international roaming call-back service; When described calling terminal has authority, described USSD server passes through GSM_MAP signaling Process_UNSTRUCTURE_SS_NOTIFY message informing GSM net originating switch MSC or VLR, directly clawback calling terminal; Described USSD server is by calling out terminal called with repeat circuit; After terminal called paging success, described USSD server is connected the calling passage between calling terminal and terminal called simultaneously.
The method and system of realizing international roaming call-back service of the present invention, USSD server judges according to international roaming user right whether user can use international roaming call-back service, there is stronger operability, in the situation that not changing the characteristics such as existing business flow process and networking structure, solved the demand that calling subscriber's authority can be inquired about, and reduce the longer problem of time delay that calling subscriber waits for clawback, improved client perception degree, and reduced circuit in system and the expense of signaling link, reduced cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram that USSD of the prior art realizes international roaming call-back service flow process;
Fig. 2 is for according to the flow chart of an embodiment of the method that realizes international roaming call-back service of the present invention;
Fig. 3 A is the Signalling exchange schematic diagram of international roaming subscription authentication login GSM network; Fig. 3 B is for revising the schematic flow sheet of user profile by CDMA HLR operation maintenance center;
Fig. 4 is for according to the flow chart of an embodiment of the system that realizes international roaming call-back service of the present invention.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Unstructured supplementary data traffic USSD (Unstructured Supplementary Service Data) is a kind of based on global system for mobile communications GSM (Global System for Mobile Communications) novel interactive sessions data service network, real-time online; It utilizes the signalling path of GSM network to transmit data based on subscriber identification module SIM (Subscriber Identity Module) card, is the new business of releasing in the short-message system technical foundation of GSM.
USSD keeps call to connect in conversation procedure always, and transparent channel is provided, and does not carry out storage forwarding; USSD server is connected with the HLR of gsm system by the MAP Map (Mobile Application Part) of Signaling System Number 7 SS7 (SignalinSystem No.7), by special line, with TCP/IP TCP/IP (Transfer Control Protocol/Internet Protocol), is connected with miscellaneous equipment.Interface protocol and the short message of USSD are similar, adopt SMPP or CMPP.
Fig. 2 is for according to the flow chart of an embodiment of the method that realizes international roaming call-back service of the present invention.As shown in Figure 2:
Step 202, USSD server (can be also USSD business platform) receives international roaming call-back service request.
Step 203, USSD server lookup user rights database, judges whether calling terminal has the authority of using international roaming call-back service.
Step 204, when calling terminal lack of competence, USSD server interrupts this international roaming call-back service.When calling terminal has authority, this calling terminal of USSD server clawback, and call out terminal called.
USSD service authority server (can be also USSD service authority platform) by and USSD server between data-interface, to USSD server, transmit international roaming user right data.
According to one embodiment of present invention, operator, China Telecom for example, according to roaming place network formats, not being all user provides CDMA international roaming (being called for short " CtoC roaming ") and GSM(to comprise WCDMA) international roaming (abbreviation " CtoG roaming ").For example, the mobile subscriber of China Telecom need to use CtoG roaming, and double-mode card is put into G net mobile phone or dual-mode handset, the service that can use GSM network to provide in G network roaming countries and regions.When international roaming, use GSM network (containing WCDMA network) overseas, directly dial * * 133*86 and add national number, with #, finish, wait for clawback.After dial-up success, can on-hook waiting system clawback.Because call is to be connected in the mode of clawback by system, make to become callee from calling party.
According to one embodiment of present invention, calling terminal is GC double-mode card terminal, and GC double-mode card is for supporting the subscriber card of GSM and cdma network, and main home network is cdma network.Calling terminal roams into GSM network overseas, uses international roaming call-back service.USSD service authority collection of server and resolve GC gateway and GSM network between signaling, generate international roaming user right data.
According to one embodiment of present invention, the storage of USSD service authority database roams to the data of the GC double-mode card terminal of GSM network overseas.Data in user rights database and USSD service authority database all comprise: the international mobile subscriber identity IMSI of GC double-mode card GSM network, roaming GSM state and roaming callback service authority.
According to one embodiment of present invention, USSD service authority server parses roams to the GC double-mode card terminal authentication login GSM network of GSM network overseas to having, and in USSD service authority database, while not retrieving this user's GSM net IMSI, USSD service authority server is newly-increased this user data information and service authority information in USSD service authority database.
USSD service authority server parses is to there being (the Home Location Register: when attaching position register) user profile has been revised by operation maintenance center through the HLR in the cdma network of main ownership, USSD service authority server, in USSD service authority database, changes this user's service authority.USSD service authority server by and USSD server between data-interface, the change that transmits in real time international roaming user right data to USSD server.
According to one embodiment of present invention, the GSM MAP_INSERT_SUB_DATA message of the GC double-mode card user of USSD service authority server collection international roaming when authentication login GSM network.
When in GSM INSERT_SUB_DATA message, in " ODB-GeneralData " field, the assignment of " allOG-CallsBarred " and " internationalOGCallsBarred " is " true ", this GC double-mode card user bans use of international roaming call-back service." allOG-CallsBarredh " in " ODB-GeneralData " field and the assignment of " internationalOGCallsBarred " are when being faulse, and this GC double-mode card user can use international roaming call-back service.
To roaming to the CtoG user of GSM network overseas, set up USSD service authority database.Data format is shown in following table 1:
The data format of table 1-USSD service authority database
After running into following situation, immediately data are sent to USSD platform.
1, GC gateway and overseas the signaling between GSM network be resolved to CtoG international roaming subscription authentication login GSM network, and in USSD service authority database, while not retrieving this user's GSM net IMSI, need in USSD service authority database, increase this user data information and service authority information newly.Wherein, interface command: create user data.
2, GC gateway and overseas the signaling between GSM network be resolved to through CDMAHLR operation maintenance center and revised user profile, in USSD service authority database, changed this user's roaming clawback * * 133USSD service authority simultaneously.Wherein, interface command: modify user data.
User rights database and USSD service authority database are consistent.
According to one embodiment of present invention, calling terminal roams into GSM network, at GSM network side, uses international roaming call-back service (* * 133).
MSC(mobile switching centre in GSM net: Mobile Switching Center) or VLR USSD request message is forwarded to USSD server by GSM_MAP signaling Process_UNSTRUCTURE_SS_REQUEST.
Calling, the information of the required retrieval of outgoing call and the information of user's signing service and supplementary service of VLR (Visitor Location Register: being VLR Visitor Location Register) database, is that in storage institute compass of competency, MS(general designation calls on a customer).
USSD server is received after message, and inquiring user rights database judges whether calling terminal has the authority of using international roaming call-back service.
When calling terminal lack of competence, USSD server interrupts this international roaming call-back service.When calling terminal has authority, USSD server passes through GSM_MAP signaling Process_UNSTRUCTURE_SS_NOTIFY message informing GSM net originating switch MSC or VLR, directly clawback calling terminal.
USSD server is by calling out terminal called with repeat circuit.After terminal called paging success, USSD server is connected the calling passage between calling terminal and terminal called simultaneously.
The method that realizes international roaming call-back service of the present invention, has stronger operability, in the situation that not changing the characteristics such as existing business flow process and networking structure, has solved the demand that calling subscriber's authority can be inquired about simultaneously.USSD service authority server, be responsible for collection and parsing to crucial signaling message between GC gateway and GSM network, the final CtoG international roaming user authority management database that forms, set up data-interface simultaneously and between USSD server, to USSD server, transmit in real time by international roaming user right data.USSD server judges according to international roaming user right whether user has use international roaming call-back service.
Fig. 3 A is the Signalling exchange schematic diagram of international roaming subscription authentication login GSM network.
USSD service authority server is implemented signal collecting and parsing, the parsing to crucial signaling message to crucial signaling information between GC gateway and GSM net.With reference to the IIF of China Telecom gateway (Interworking and Interoperability Function:GC roaming gateway), CDMA user, roam overseas and initiate authentication and user's log-in events after GSM-MSC/VLR.This patent mainly judges USSD service-user rights of using by the GSM MAP_INSERT_SUB_DATA message in subscription authentication log-in events.Wherein, mainly when CtoG international roaming subscription authentication login GSM network, to GSM MAP_INSERT_SUB_DATA message parse.Concrete Signalling exchange is as shown in Figure 3A:
A) CDMA user's launch position in GSM network overseas upgrades, and the GSM-MSC/VLR of roaming service overseas sends SEND_AUTHTENTICATION_INFO authentication information request message to IIF.
B) IIF examines the IMSI number of being reported by MS, carries out IIF-GSM AUC function and produces authentication tlv triple (RAND, SRES, Kc).
Send SEND_AUTHENTICATION_INFO_RESPONSE response message, authentication tlv triple is passed to the GSM-MSC/VLR of roaming service overseas.
C) GSM-MSC/VLR of roaming service overseas, to after MS authentication success, sends location update message UPDATE_LOCATION to IIF.
D) IIF carry out CDMA side enrollment process (if stored user in IIF at the required full detail of GSM network registration, not carrying out the enrollment process of CDMA side).IIF becomes REGNOT message by the UPDATE_LOCATION message conversion of receiving, sends to the ownership CDMA-HLR of MS, and wherein user's MIN is corresponding with the IMSI in GSM network.
E) CDMA-HLR replys regnot message to IIF, wherein contains user's CAMEL-Subscription-Information.
F) IIF sends INSERT_SUB_DATA message to the GSM-MSC/VLR of roaming service overseas, transmits user's CAMEL-Subscription-Information
G) GSM-MSC/VLR of roaming service overseas returns to INSERT_SUB_DATA message confirmation, acknowledges receipt of user's CAMEL-Subscription-Information
H) IIF sends UPDATE_LOCATION message confirmation to GSM-MSC/VLR2.
Fig. 3 B is for revising the schematic flow sheet of user profile by CDMA HLR operation maintenance center.Gather by CDMA HLR operation maintenance center and revise user profile, to GSM MAP_INSERT_SUB_DATA message parse.Mainly with reference to the CDMA HLR operation maintenance center of the IIF of China Telecom net, revise the signaling process of user profile.By the GSM MAP_INSERT_SUB_DATA message in user management event, judge USSD service-user rights of using.Wherein, judgement CtoG international roaming user use international roaming clawback * * 133USSD business according to being: in INSERT_SUB_DATA message " ODB-GeneralData " assignment of " allOG-CallsBarred and internationalOGCallsBarred " in field.
If allOG-CallsBarred or internationalOGCallsBarred are true, in CtoG international roaming rights database, by this user label for banning use of international roaming clawback * * 133USSD business.If allOG-CallsBarredh and internationalOGCallsBarred are faulse, this user label is for can be used international roaming clawback * * 133USSD business.Concrete Signalling exchange is as shown in Figure 3 B:
A) CAMEL-Subscription-Information of CDMA user in ownership cdma network changes, and CDMA-HLR sends QUALDIR message to IIF.
B) IIF returns to qualdir message to CDMA-HLR.
C) CAMEL-Subscription-Information that I IF stores according to the content update of QUALDIR message itself, generates INSERT_SUB_DATA or DELETE_SUB_DATA message according to the data that change, and is sent to the GSM-MSC/VLR of CDMA user's current service.
D) GSM-MSC/VLR returns to INSERT_SUB_DATA message confirmation or DELETE_SUB_DATA message confirmation.
Fig. 4 is according to the flow chart of realizing an embodiment of international roaming call-back service of the present invention.As shown in Figure 4: a kind of system that realizes international roaming call-back service, comprising: USSD server 401, USSD service authority server 402, user rights database 403.
USSD server 401 receives international roaming call-back service request, and inquiring user rights database 403 judges whether calling terminal has the authority of using international roaming call-back service.
When calling terminal lack of competence, USSD server 401 interrupts this international roaming call-back service.When calling terminal has authority, this calling terminal of USSD server 401 clawbacks, and call out terminal called.
User rights database 403 storage users' business rights of using.USSD service authority server 402 by and USSD server between data-interface, to USSD server, transmit international roaming user right data.
According to one embodiment of present invention, calling terminal is GC double-mode card terminal, and main home network is cdma network.Calling terminal roams into GSM network overseas, uses international roaming call-back service.USSD service authority collection of server and resolve GC gateway and GSM network between signaling, generate international roaming user right data.
According to one embodiment of present invention, 404 storages of USSD service authority database roam to the data of the GC double-mode card terminal of GSM network overseas.Data in user rights database 403 and USSD service authority database 404 all comprise: the IMSI of GC double-mode card GSM network, roaming GSM state and roaming callback service authority.
According to one embodiment of present invention, USSD service authority server 402 is resolved to and roams to the GC double-mode card terminal authentication login GSM network of GSM network overseas, and in USSD service authority database 404, while not retrieving this user's GSM net IMSI, USSD service authority server is newly-increased this user data information and service authority information in USSD service authority database.
USSD service authority server 404 is resolved to while having revised user profile through the HLR406 operation maintenance center in the cdma network of main ownership, and USSD service authority server 402, in USSD service authority database 404, changes this user's service authority.USSD service authority server 404 by and USSD server 401 between data-interface, to USSD server 401, transmit in real time the change of international roaming user right data.
According to one embodiment of present invention, calling terminal roams into GSM network, at GSM network side, uses international roaming call-back service.
MSCE or VLR407 in GSM net are forwarded to USSD server 401 by USSD request message by GSM_MAP signaling Process_UNSTRUCTURE_SS_REQUEST.
USSD server 401 is received after message, and inquiring user rights database 403 judges whether calling terminal has the authority of using international roaming call-back service.When calling terminal lack of competence, USSD server 401 interrupts this international roaming call-back service.
When calling terminal has authority, USSD server 401 passes through GSM_MAP signaling Process_UNSTRUCTURE_SS_NOTIFY message informing GSM net originating switch MSC or VLR407, directly clawback calling terminal.
USSD server 401 is by calling out terminal called with repeat circuit.After terminal called paging success, USSD server 401 is connected the calling passage between calling terminal and terminal called simultaneously.
Method and system of the present invention, has solved the demand that calling subscriber's authority can be inquired about, and reduces the longer problem of time delay that calling subscriber waits for clawback, improved client perception degree, and has reduced circuit in system and the expense of signaling link, has reduced cost.
May realize in many ways method and system of the present invention.For example, can realize method and system of the present invention by any combination of software, hardware, firmware or software, hardware, firmware.The said sequence that is used for the step of method is only in order to describe, and the step of method of the present invention is not limited to above specifically described order, unless otherwise specified.In addition, in certain embodiments, can be also the program being recorded in recording medium by the invention process, these programs comprise for realizing the machine readable instructions of the method according to this invention.Thereby the present invention also covers storage for carrying out the recording medium of the program of the method according to this invention.
Description of the invention provides for example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment with various modifications that the present invention's design is suitable for special-purpose.
Claims (12)
1. a method that realizes international roaming call-back service, is characterized in that, comprising:
Unstructured supplementary data traffic USSD server receives international roaming call-back service request;
Described USSD server lookup user rights database, judges whether calling terminal has the authority of using international roaming call-back service;
When described calling terminal lack of competence, described USSD server interrupts this international roaming call-back service; When described calling terminal has authority, described this calling terminal of USSD server clawback, and call out terminal called;
Wherein, USSD service authority server by and described USSD server between data-interface, to described USSD server, transmit international roaming user right data.
2. the method for claim 1, is characterized in that:
Described calling terminal is GC double-mode card terminal, and main home network is cdma network; Described calling terminal roams into GSM network overseas, uses international roaming call-back service;
Described USSD service authority collection of server and resolve GC gateway and GSM network between signaling, generate international roaming user right data.
3. method as claimed in claim 2, is characterized in that:
The storage of USSD service authority database roams to the data of the GC double-mode card terminal of GSM network overseas;
Data in described user rights database and described USSD service authority database all comprise: the IMSI of GC double-mode card GSM network, roaming GSM state and roaming callback service authority.
4. method as claimed in claim 3, is characterized in that:
Described USSD service authority server parses roams to the GC double-mode card terminal authentication login GSM network of GSM network overseas to having, and in USSD service authority database, while not retrieving this user's GSM net IMSI, described USSD service authority server is newly-increased this user data information and service authority information in USSD service authority database;
Described USSD service authority server parses is to having while having revised user profile through the HLR in the cdma network of main ownership, and described USSD service authority server, in USSD service authority database, changes this user's service authority;
Described USSD service authority server by and described USSD server between data-interface, the change that transmits in real time international roaming user right data to described USSD server.
5. method as claimed in claim 4, is characterized in that:
The GSM MAP_INSERT_SUB_DATA message of the GC double-mode card user of described USSD service authority server collection international roaming when authentication login GSM network;
When in GSM INSERT_SUB_DATA message, in " ODB-GeneralData " field, the assignment of " allOG-CallsBarred " and " internationalOGCallsBarred " is true, this GC double-mode card user bans use of international roaming call-back service;
" allOG-CallsBarredh " in " ODB-GeneralData " field and the assignment of " internationalOGCallsBarred " are when being faulse, and this GC double-mode card user can use international roaming call-back service.
6. method as claimed in claim 4, is characterized in that:
Described calling terminal roams into GSM network, at GSM network side, uses international roaming call-back service;
MSCE or VLR in GSM net are forwarded to USSD server by USSD request message by GSM_MAP signaling Process_UNSTRUCTURE_SS_REQUEST;
Described USSD server is received after message, inquires about described user rights database, judges whether calling terminal has the authority of using international roaming call-back service;
When described calling terminal lack of competence, described USSD server interrupts this international roaming call-back service;
When described calling terminal has authority, described USSD server passes through GSM_MAP signaling Process_UNSTRUCTURE_SS_NOTIFY message informing GSM net originating switch MSC or VLR, directly clawback calling terminal;
Described USSD server is by calling out terminal called with repeat circuit;
After terminal called paging success, described USSD server is connected the calling passage between calling terminal and terminal called simultaneously.
7. a system that realizes international roaming call-back service, is characterized in that, comprising:
USSD server, for receiving international roaming call-back service request, inquiring user rights database, judges whether calling terminal has the authority of using international roaming call-back service; When described calling terminal lack of competence, described USSD server interrupts this international roaming call-back service; When described calling terminal has authority, described this calling terminal of USSD server clawback, and call out terminal called;
User rights database, for storing user's business rights of using;
USSD service authority server, for by and described USSD server between data-interface, to described USSD server, transmit international roaming user right data.
8. system as claimed in claim 7, is characterized in that:
Described calling terminal is GC double-mode card terminal, and main home network is cdma network; Described calling terminal roams into GSM network overseas, uses international roaming call-back service;
Described USSD service authority collection of server and resolve GC gateway and GSM network between signaling, generate international roaming user right data.
9. system as claimed in claim 8, is characterized in that, also comprises:
USSD service authority database, roams to the data of the GC double-mode card terminal of GSM network overseas for storing;
Data in described user rights database and described USSD service authority database all comprise: the IMSI of GC double-mode card GSM network, roaming GSM state and roaming callback service authority.
10. system as claimed in claim 9, is characterized in that:
Described USSD service authority server parses roams to the GC double-mode card terminal authentication login GSM network of GSM network overseas to having, and in USSD service authority database, while not retrieving this user's GSM net IMSI, described USSD service authority server is newly-increased this user data information and service authority information in USSD service authority database;
Described USSD service authority server parses is to having while having revised user profile through the HLR in the cdma network of main ownership, and described USSD service authority server, in USSD service authority database, changes this user's service authority;
Described USSD service authority server by and described USSD server between data-interface, the change that transmits in real time international roaming user right data to described USSD server.
11. systems as claimed in claim 10, is characterized in that:
The GSM MAP_INSERT_SUB_DATA message of the GC double-mode card user of described USSD service authority server collection international roaming when authentication login GSM network;
When in GSM INSERT_SUB_DATA message, in " ODB-GeneralData " field, the assignment of " allOG-CallsBarred " and " internationalOGCallsBarred " is true, this GC double-mode card user bans use of international roaming call-back service;
" allOG-CallsBarredh " in " ODB-GeneralData " field and
The assignment of " internationalOGCallsBarred " is when being faulse, and this GC double-mode card user can use international roaming call-back service.
12. systems as claimed in claim 9, is characterized in that:
Described calling terminal roams into GSM network, at GSM network side, uses international roaming call-back service;
MSCE or VLR in GSM net are forwarded to USSD server by USSD request message by GSM_MAP signaling Process_UNSTRUCTURE_SS_REQUEST;
Described USSD server is received after message, inquires about described user rights database, judges whether calling terminal has the authority of using international roaming call-back service;
When described calling terminal lack of competence, described USSD server interrupts this international roaming call-back service;
When described calling terminal has authority, described USSD server passes through GSM_MAP signaling Process_UNSTRUCTURE_SS_NOTIFY message informing GSM net originating switch MSC or VLR, directly clawback calling terminal;
Described USSD server is by calling out terminal called with repeat circuit;
After terminal called paging success, described USSD server is connected the calling passage between calling terminal and terminal called simultaneously.
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