CN101969628A - International roaming callback service platform of CDMA (Code Division Multiple Access) network, system and method - Google Patents
International roaming callback service platform of CDMA (Code Division Multiple Access) network, system and method Download PDFInfo
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Abstract
The invention provides an international roaming callback service platform of a CDMA (Code Division Multiple Access) network, a system and a method, relating to the technical field of CDMA mobile communication application. The method used for the international roaming callback service of the CDMA network comprises the following steps of: receiving an international roaming special service call by a roaming MSC (Mobile Switching Center), wherein the international roaming special service call is sent by a calling terminal through dialing an international roaming special service number which comprises a called terminal number; sending a function request message by the roaming MSC to an HLR (Home Location Register) which the calling terminal belongs through ISTP (Index To Scientific & Technical Proceedings), wherein the function request message comprises the an international roaming special service number and the VLR (Visitor Location Register) information; intercepting the function request message by the international roaming callback service platform; extracting the called terminal number carried in the international roaming special service number and calling the called terminal by the international roaming callback service platform; calling the calling terminal according to the VLR information carrying a temporary local roaming number of the calling terminal by the international roaming callback service platform; and bridging a call path between the calling terminal and the called terminal by the international roaming callback service platform. The invention can realize the international roaming callback service on the basis of the CDMA network.
Description
Technical field
The present invention relates to CDMA (Code Division Multiple Access, code division multiple access) mobile communication application technical field, particularly relate to a kind of CDMA net international roaming callback service platform, system and method.
Background technology
Domestic each operator releases the international roaming callback service one after another, and has obtained extraordinary market effect.At present, this business is mainly by GSM (Global System for MobileCommunications, global system for mobile communications) USSD of network (UnstructuredSupplementary Service Data, unstructured supplementary data traffic) message realizes the transmission of the required call information of international roaming user.And because cdma network is not supported USSD message, so can't in being the international roaming of cdma network, the roaming place carry out this business.
Summary of the invention
The objective of the invention is to propose a kind of CDMA net international roaming callback service platform, system and method, for CDMA user provides the international roaming callback service.
For achieving the above object, the invention provides a kind of method that is used for cdma network international roaming callback service, comprise: roaming place MSC receives the international roaming special service call that calling terminal sends by dialing the international roaming shortcode, and described international roaming shortcode comprises the number of terminal called; Described roaming place MSC is according to described international roaming special service call, and via ISTP, to the HLR sending function request message of described calling terminal ownership, described function request message comprises described international roaming shortcode and VLR information; When the described ISTP of described function request message process, international roaming callback service platform intercepts described function request message; Described international roaming callback service platform extracts the number of the terminal called that carries in the described international roaming shortcode, calls out described terminal called; In response to the signal that described terminal called is switched on, described international roaming callback service platform is called out described calling terminal according to the described VLR information of carrying described calling terminal interim local roaming number; In response to the signal that described calling terminal is switched on, the speech channel between described caller of described international roaming callback service platform bridges and the terminal called.
In one embodiment, described international roaming callback service platform extracts the number of the terminal called that carries in the described international roaming shortcode, call out described terminal called, comprising: described international roaming callback service platform extracts the number of the terminal called that carries in the described international roaming shortcode; Described international roaming callback service platform sends the first via by solicitation message according to described VLR information to VLR; Described international roaming callback service platform receives described VLR to the response message of the described first via by solicitation message; Described international roaming callback service platform is called out described terminal called according to the number of described terminal called.
In one embodiment, extract the number of the terminal called that carries in the described international roaming shortcode at described international roaming callback service platform, call out after the described terminal called, comprise: when connecting described terminal called, described international roaming callback service platform has international calling by described terminal called destination user prompter.
In one embodiment, the signal that is switched in response to described terminal called, described international roaming callback service platform is according to the described VLR information of carrying described calling terminal interim local roaming number, call out described calling terminal, comprise: in response to the signal that described terminal called is switched on, described international roaming callback service platform sends the secondary route solicitation message to described VLR; Described international roaming callback service platform receives the response message of described VLR to described secondary route solicitation message, and described response message to described secondary route solicitation message comprises the interim local roaming number of described calling terminal; According to described interim local roaming number, described international roaming callback service platform makes a call to described calling terminal.
For achieving the above object, the present invention also provides a kind of international roaming callback service platform that is used for cdma network, comprise: the information interception module, be used for working as the international roaming special service call that roaming place MSC sends by dialing the international roaming shortcode according to calling terminal, via ISTP, when the HLR sending function request message of described calling terminal ownership, in the described function request message of described ISTP place intercepting, described function request message comprises described international roaming shortcode and VLR information, and described international roaming shortcode comprises the number of terminal called; The terminal called calling module is used for extracting the number of the terminal called that described international roaming shortcode carries, and calls out described terminal called; The calling terminal calling module during signal that is used for being switched in response to described terminal called, according to the described VLR information of carrying described calling terminal interim local roaming number, is called out described calling terminal; Bridge module is used for the signal that is switched in response to described calling terminal, the speech channel between described caller of bridge joint and the terminal called.
In one embodiment, described terminal called calling module comprises: the called number extraction unit is used for extracting the number of the terminal called that described international roaming shortcode carries; The first via is used for sending the first via by solicitation message according to described VLR information to VLR by application unit; The first response message receiving element is used to receive described VLR to the response message of the described first via by solicitation message; The terminal called calling unit is used for the number according to described terminal called, calls out described terminal called.
In one embodiment, described international roaming callback service platform also comprises: prompting module is used for by described terminal called destination user prompter international calling being arranged when connecting described terminal called.
In one embodiment, described calling terminal calling module comprises: the secondary route application unit, be used for the signal that is switched in response to described terminal called, and send the secondary route solicitation message to described VLR; The second response message receiving element is used to receive the response message of described VLR to described secondary route solicitation message, and described response message to described secondary route solicitation message comprises the interim local roaming number of described calling terminal; The calling terminal calling unit is used for making a call to described calling terminal according to described interim local roaming number.
For achieving the above object, the present invention also provides a kind of system that is used for cdma network international roaming callback service, comprise: roaming place MSC, be used to receive the international roaming special service call that calling terminal sends by dialing the international roaming shortcode, described international roaming shortcode comprises the number of terminal called; ISTP is used to pass on described roaming place MSC according to described international roaming special service call, and to the function request message that the HLR of described calling terminal ownership sends, described function request message comprises described international roaming shortcode and VLR information; International roaming callback service platform, be used for when the described ISTP of described function request message process, intercept described function request message, extract the number of the terminal called that carries in the described international roaming shortcode, call out described terminal called, in response to the signal that described terminal called is switched on, described international roaming callback service platform is according to the described VLR information of carrying described calling terminal interim local roaming number, call out described calling terminal, with the speech channel between described caller of bridge joint and the terminal called.
Based on technique scheme, according to an aspect of the present invention, by of the intercepting of international roaming callback service platform to the function request message, and therefrom extract the number of terminal called, speech channel between bridge joint caller and the terminal called on the cdma network basis, can realize the international roaming callback service.Like this can be effectively provide convenience for CDMA user's international roaming communication.
Description of drawings
Accompanying drawing described herein is used to provide further explanation of the present invention, constitutes a part of the present invention.Illustrative examples of the present invention and explanation thereof only are used to explain the present invention, but do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the application scenarios of the embodiment of the invention.
Fig. 2 is the flow chart according to the method that is used for cdma network international roaming callback service of the embodiment of the invention.
Fig. 3 is for being used for the flow chart of the method for cdma network international roaming callback service according to another embodiment of the present invention.
Fig. 4 is the international roaming callback service platform that is used for cdma network according to the embodiment of the invention.
Fig. 5 is for being used for the international roaming callback service platform of cdma network according to another embodiment of the present invention.
Fig. 6 is the structural representation according to the terminal called calling module of the embodiment of the invention.
Fig. 7 is the structural representation according to the calling terminal calling module of the embodiment of the invention.
Fig. 8 is the system configuration schematic diagram according to the international roaming callback service that is used for cdma network of the embodiment of the invention.
Embodiment
With reference to the accompanying drawings the present invention is described in more detail, exemplary embodiment of the present invention wherein is described.In the accompanying drawings, identical label is represented identical or similar assembly or element.
Fig. 1 is the schematic diagram according to the application scenarios 100 of the embodiment of the invention.Application scenarios 100 comprises: calling terminal 102, terminal called 122, roaming place MSC (Mobile SwitchingCenter, mobile switching centre) 104 ISTP (International Signal TransferPoint,, international signalling transfer point) 106 HLR (Home Location Register,, attaching position register) 108, international roaming callback service platform 112, VLR (VisitedLocation Register, Visited Location Registor) 114 ISC (InternationalSwitching Center, international switching center) 116.
Roaming place MSC 104 can carry out exchange, mobile management, route and functions such as calling control and charging, and the intercommunication of realization and fixed network.When the user dials the international roaming shortcode by calling terminal 102, roaming place MSC 104 will receive this and call out, and this Call Forwarding be given the HLR 108 of calling terminal 102 ownership.
HLR 108 is that system is used for the central database of leading subscriber, can store all registered mobile subscribers' static data (as the ability that continues, appointment business and auxiliary activities etc.) and dynamic data (as information of the actual place MSC of travelling carriage etc.), so that call establishment.Roaming place MSC104 can send FEATUER REQUEST (function request) message to HLR 108 according to the international roaming special service call, and FEATURE REQUEST message can comprise international roaming shortcode and VLR information.When FEATURE REQUEST message process ISTP 106, international roaming callback service platform 112 can intercept this message.
International roaming callback service platform 112 can extract the number of the terminal called 122 that carries in the international roaming shortcode, calls out terminal called 122.In response to the signal that terminal called 122 is switched on, the roaming number of the calling terminal 102 that international roaming callback service platform can carry according to VLR information is called out calling terminal 102, with the speech channel between bridge joint calling terminal 102 and the terminal called 122.
VLR 114 is used for dynamically storing the visiting user profile that is positioned at its administrative area.When international roaming callback service platform 112 carries out business realizing, can obtain the TLDN (Temporary Local Directory Number, interim local roaming number) of calling terminal 102 and the information such as state of calling terminal 102 from VLR 114.
ISC 116 is used to pass on the calling of 112 pairs of calling terminals 102 of international roaming callback service platform and terminal called 122.
Fig. 2 is the flow chart according to the method 200 that is used for cdma network international roaming callback service of the embodiment of the invention.
In step 202, roaming place MSC receives the international roaming special service call that calling terminal sends by dialing the international roaming shortcode, and the international roaming shortcode comprises the number of terminal called.
In step 204, roaming place MSC is according to the international roaming special service call, and via ISTP, to the HLR sending function request message of calling terminal ownership, the function request message comprises international roaming shortcode and VLR information.
In step 206, when function request message process ISTP, international roaming callback service platform intercepting function request message.
In step 208, international roaming callback service platform extracts the number of the terminal called that carries in the international roaming shortcode, calls out terminal called.
In step 210, in response to the signal that terminal called is switched on, international roaming callback service platform is called out calling terminal according to the VLR information of carrying calling terminal interim local roaming number.
In step 212, in response to the signal that calling terminal is switched on, the speech channel between platform bridges caller of international roaming callback service and the terminal called.
Fig. 3 is for being used for the flow chart of the method 300 of cdma network international roaming callback service according to another embodiment of the present invention.
In step 302, roaming place MSC receives the international roaming special service call that calling terminal sends by dialing the international roaming shortcode, and the international roaming shortcode comprises the number of terminal called.The user can pass through calling terminal dialing international roaming shortcode, and its form can be " a * international roaming callback service * called number ", as * 133*861066505588#.
In step 304, roaming place MSC via ISTP, sends FEATURE REQUEST message to the HLR of calling terminal ownership according to the international roaming special service call, and FEATUREREQUEST message comprises international roaming shortcode and VLR information.Roaming place MSC is after receiving the international roaming special service call, the FEATURE REQUEST message that can pass through in MAP (Mobile Application Part, the MAP) agreement sends to the HLR that calling terminal belongs to the information of calling terminal and " the * international roaming callback service * called number " that the user dialed.
In step 306, when FEATURE REQUEST message process ISTP, international roaming callback service platform intercepting FEATURE REQUEST message.
In step 308, international roaming callback service platform can send the first via by solicitation message to VLR according to the VLR information in the FEATUREREQUEST message.International roaming callback service platform can be initiated ROUTREQ (Routing Request, route application) message to VLR according to the VLR information of carrying in the FEATURE REQUEST message.
In step 310, international roaming callback service platform receives VLR to the response message of the first via by solicitation message.VLR can comprise state that calling terminal is present etc. to the response message of ROUTREQ.
In step 312, international roaming callback service platform extracts the number of the terminal called that carries in the international roaming shortcode.International roaming callback service platform is called out terminal called according to the number of terminal called.In one embodiment, international roaming callback service platform can be called out terminal called by one group of trunk group of ISC.
In step 314, when connecting terminal called, international roaming callback service platform has international calling by the terminal called destination user prompter.Can pass through IVR (Interactive Voice Response, interactive voice response) such as, international roaming callback service platform and carry out voice suggestion as " you have international calling, please marquis " slightly.
In step 316, in response to the signal that terminal called is switched on, international roaming callback service platform sends the secondary route solicitation message to VLR.
In step 318, international roaming callback service platform receives the response message of VLR to the secondary route solicitation message, the response message of secondary route solicitation message is comprised the interim local roaming number of calling terminal.VLR can comprise TLDN of the present state of calling terminal, calling terminal etc. to the response message of secondary route solicitation message.
In step 320, according to the interim local roaming number, international roaming callback service platform makes a call to calling terminal.International roaming callback service platform can make a call to calling terminal by another group IDD (International Direct Dialing, international direct dial) of ISC.
In step 322, in response to the signal that calling terminal is switched on, the speech channel between platform bridges caller of international roaming callback service and the terminal called, conversation beginning.
Fig. 4 is the international roaming callback service platform 400 that is used for cdma network according to the embodiment of the invention.International roaming callback service platform 400 comprises: information interception module 402, terminal called calling module 404, calling terminal calling module 406 and bridge module 408.
Terminal called calling module 404 is used for extracting the number of the terminal called that the international roaming shortcode carries, and calls out terminal called.
Calling terminal calling module 406 during the signal that is used for being switched in response to terminal called, according to the VLR information of carrying calling terminal interim local roaming number, is called out calling terminal.
Fig. 5 is for being used for the international roaming callback service platform 500 of cdma network according to another embodiment of the present invention.International roaming callback service platform 500 comprises: information interception module 502, terminal called calling module 504, calling terminal calling module 506, bridge module 508 and prompting module 510.
Terminal called calling module 504 is used for according to the international roaming shortcode, calls out terminal called.In one embodiment, terminal called calling module 504 as shown in Figure 6, comprising: the first via is by application unit 602, the first response message receiving element 604, called number extraction unit 605 and terminal called calling unit 606.The first via is used for sending the first via by solicitation message according to VLR information to VLR by application unit 602.The first response message receiving element 604 is used to receive VLR to the response message of the first via by solicitation message.Called number extraction unit 605 is used for extracting the number of the terminal called that the international roaming shortcode carries.Terminal called calling unit 606 is used for the number according to terminal called, calls out terminal called.
Calling terminal calling module 506 during the signal that is used for being switched in response to terminal called, according to the VLR information of carrying calling terminal interim local roaming number, is called out calling terminal.In one embodiment, calling terminal calling module 506 as shown in Figure 7, comprising: secondary route application unit 702, the second response message receiving element 704 and calling terminal calling unit 706.Secondary route application unit 702 is used for the signal that is switched in response to terminal called, sends the secondary route solicitation message to VLR.The second response message receiving element 704 is used to receive the response message of VLR to the secondary route solicitation message, the response message of secondary route solicitation message is comprised the interim local roaming number of calling terminal.Calling terminal calling unit 706 is used for making a call to calling terminal according to the interim local roaming number.
Fig. 8 is the structural representation according to the international roaming callback service system 800 that is used for cdma network of the embodiment of the invention.International roaming callback service system 800 comprises: roaming place MSC 802, ISTP 804 and international roaming callback service platform 806.
International roaming callback service platform 806, be used for when function request message process ISTP, intercepting function request message, extract the number of the terminal called that carries in the international roaming shortcode, call out terminal called, in response to the signal that terminal called is switched on, international roaming callback service platform 806 is according to the VLR information of carrying calling terminal interim local roaming number, call out calling terminal, with the speech channel between bridge joint caller and the terminal called.
According to an aspect of the present invention, by of the intercepting of international roaming callback service platform, and therefrom extract the number of terminal called, the speech channel between bridge joint caller and the terminal called to the function request message, on the cdma network basis, can realize the international roaming callback service.Like this can be effectively provide convenience for CDMA user's international roaming communication.
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 that have various modifications that the present invention's design is suitable for special-purpose.
Claims (9)
1. a method that is used for cdma network international roaming callback service is characterized in that, comprising:
Roaming place MSC receives the international roaming special service call that calling terminal sends by dialing the international roaming shortcode, and described international roaming shortcode comprises the number of terminal called;
Described roaming place MSC is according to described international roaming special service call, and via ISTP, to the HLR sending function request message of described calling terminal ownership, described function request message comprises described international roaming shortcode and VLR information;
When the described ISTP of described function request message process, international roaming callback service platform intercepts described function request message;
Described international roaming callback service platform extracts the number of the terminal called that carries in the described international roaming shortcode, calls out described terminal called;
In response to the signal that described terminal called is switched on, described international roaming callback service platform is called out described calling terminal according to the described VLR information of carrying described calling terminal interim local roaming number;
In response to the signal that described calling terminal is switched on, the speech channel between described caller of described international roaming callback service platform bridges and the terminal called.
2. the method that is used for cdma network international roaming callback service according to claim 1 is characterized in that, described international roaming callback service platform extracts the number of the terminal called that carries in the described international roaming shortcode, calls out described terminal called, comprising:
Described international roaming callback service platform extracts the number of the terminal called that carries in the described international roaming shortcode;
Described international roaming callback service platform sends the first via by solicitation message according to described VLR information to VLR;
Described international roaming callback service platform receives described VLR to the response message of the described first via by solicitation message;
Described international roaming callback service platform is called out described terminal called according to the number of described terminal called.
3. the method that is used for cdma network international roaming callback service according to claim 2, it is characterized in that, extract the number of the terminal called that carries in the described international roaming shortcode at described international roaming callback service platform, call out after the described terminal called, comprising:
When connecting described terminal called, described international roaming callback service platform has international calling by described terminal called destination user prompter.
4. the method that is used for cdma network international roaming callback service according to claim 2, it is characterized in that, the signal that is switched in response to described terminal called, described international roaming callback service platform is according to the described VLR information of carrying described calling terminal interim local roaming number, call out described calling terminal, comprising:
In response to the signal that described terminal called is switched on, described international roaming callback service platform sends the secondary route solicitation message to described VLR;
Described international roaming callback service platform receives the response message of described VLR to described secondary route solicitation message, and described response message to described secondary route solicitation message comprises the interim local roaming number of described calling terminal;
According to described interim local roaming number, described international roaming callback service platform makes a call to described calling terminal.
5. an international roaming callback service platform that is used for cdma network is characterized in that, comprising:
The information interception module, be used for working as the international roaming special service call that roaming place MSC sends by dialing the international roaming shortcode according to calling terminal, via ISTP, when the HLR sending function request message of described calling terminal ownership, in the described function request message of described ISTP place intercepting, described function request message comprises described international roaming shortcode and VLR information, and described international roaming shortcode comprises the number of terminal called;
The terminal called calling module is used for extracting the number of the terminal called that described international roaming shortcode carries, and calls out described terminal called;
The calling terminal calling module during signal that is used for being switched in response to described terminal called, according to the described VLR information of carrying described calling terminal interim local roaming number, is called out described calling terminal;
Bridge module is used for the signal that is switched in response to described calling terminal, the speech channel between described caller of bridge joint and the terminal called.
6. international roaming callback service platform according to claim 5 is characterized in that, described terminal called calling module comprises:
The called number extraction unit is used for extracting the number of the terminal called that described international roaming shortcode carries;
The first via is used for sending the first via by solicitation message according to described VLR information to VLR by application unit;
The first response message receiving element is used to receive described VLR to the response message of the described first via by solicitation message;
The terminal called calling unit is used for the number according to described terminal called, calls out described terminal called.
7. international roaming callback service platform according to claim 6 is characterized in that, also comprises:
Prompting module is used for by described terminal called destination user prompter international calling being arranged when connecting described terminal called.
8. international roaming callback service platform according to claim 6 is characterized in that, described calling terminal calling module comprises:
The secondary route application unit is used for the signal that is switched in response to described terminal called, sends the secondary route solicitation message to described VLR;
The second response message receiving element is used to receive the response message of described VLR to described secondary route solicitation message, and described response message to described secondary route solicitation message comprises the interim local roaming number of described calling terminal;
The calling terminal calling unit is used for making a call to described calling terminal according to described interim local roaming number.
9. a system that is used for cdma network international roaming callback service is characterized in that, comprising:
Roaming place MSC is used to receive the international roaming special service call that calling terminal sends by dialing the international roaming shortcode, and described international roaming shortcode comprises the number of terminal called;
ISTP is used to pass on described roaming place MSC according to described international roaming special service call, and to the function request message that the HLR of described calling terminal ownership sends, described function request message comprises described international roaming shortcode and VLR information;
International roaming callback service platform, be used for when the described ISTP of described function request message process, intercept described function request message, extract the number of the terminal called that carries in the described international roaming shortcode, call out described terminal called, in response to the signal that described terminal called is switched on, described international roaming callback service platform is according to the described VLR information of carrying described calling terminal interim local roaming number, call out described calling terminal, with the speech channel between described caller of bridge joint and the terminal called.
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| CN101969628B (en) | 2013-02-13 |
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