CN109803221B

CN109803221B - Calling method, method for determining roaming number, server and readable storage medium

Info

Publication number: CN109803221B
Application number: CN201711129967.XA
Authority: CN
Inventors: 石丹
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-11-15
Filing date: 2017-11-15
Publication date: 2021-10-29
Anticipated expiration: 2037-11-15
Also published as: CN109803221A; WO2019095876A1

Abstract

The embodiment of the invention discloses a calling method, a method for determining a roaming number, a server and a readable storage medium, wherein the calling method comprises the following steps: determining a called number according to the received call request; if the terminal corresponding to the called number is in a roaming state, acquiring a roaming number corresponding to the called number; and continuing the call by using the roaming number.

Description

Calling method, method for determining roaming number, server and readable storage medium

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a calling method, a roaming number determining method, a server, and a readable storage medium.

Background

International roaming is the movement of a subscriber from a mobile network in a home country to a mobile network in another country. When a user roams internationally, the problem of high international roaming cost is solved by replacing a local card in a roaming place, the method needs to consider whether the mobile phone systems of the user are compatible, and needs to inform all contacts of a new number in advance in the using process, so that the user who frequently roams needs to frequently replace the card number and frequently inform the card number, and inconvenience is caused.

The Mobile Virtual Network Operator (MVNO) service can adopt a mode of cooperation between a certain communication Operator in an area a (such as a country a) and a certain communication Operator in an area B (such as a country B), and the problem of double-number roaming between the two areas is solved by a mode of one card and double numbers, but a roaming place number is usually allocated when a roaming service is activated, and the problems of fixed roaming place number, no excessive roaming, low flexibility and the like exist.

Disclosure of Invention

In order to solve the existing technical problems, embodiments of the present invention provide a calling method, a method for determining a roaming number, a server, and a readable storage medium, so as to solve the problems of fixed roaming number and low flexibility when a roaming service is opened in the prior art, and enable real-time and flexible allocation of an international roaming number according to location information and home location information of a terminal, thereby reducing international roaming charges and improving user experience.

The technical scheme of the embodiment of the invention is realized as follows:

in a first aspect, an embodiment of the present invention provides a method for calling, where the method includes:

determining a called number according to the received call request;

if the terminal corresponding to the called number is in a roaming state, acquiring a roaming number corresponding to the called number;

and continuing the call by using the roaming number.

In a second aspect, an embodiment of the present invention provides a method for determining a roaming number, where the method includes:

when the terminal position of a user changes, acquiring user identity identification card information of the user and current position information of the terminal;

and determining the roaming number of the user according to the user identification card information and the current position information.

In a third aspect, an embodiment of the present invention provides a server, where the server at least includes: a processor and a storage medium configured to store executable instructions, wherein:

the processor is configured to execute stored executable instructions, the executable instructions comprising:

determining a called number according to the received call request;

and continuing the call by using the roaming number.

In a fourth aspect, an embodiment of the present invention provides a server, where the server at least includes: a processor and a storage medium configured to store executable instructions, wherein:

In a fifth aspect, embodiments of the present invention provide a computer-readable storage medium having stored thereon computer-executable instructions configured to perform the above-mentioned calling method or roaming number determination method.

The embodiment of the invention provides a calling method, a method for determining a roaming number, a server and a readable storage medium, wherein the method for determining the roaming number comprises the following steps: firstly, when the position of a terminal of a user changes, acquiring user identity identification card information of the user and current position information of the terminal; then determining the roaming number of the user according to the user identification card information and the current position information; and finally, sending the confirmation request message carrying the roaming number to the terminal. Therefore, the international roaming number can be flexibly allocated in real time according to the position information and the roaming place information of the terminal, and the determined roaming number is used for continuing the call when the call is carried out, so that the international roaming charge can be reduced, and the user experience is improved.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different examples of similar components. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.

Fig. 1 is a schematic flow chart illustrating an implementation of a calling method according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating an implementation of a method for determining a roaming number according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating an implementation of a method for determining a roaming number according to an embodiment of the present invention;

fig. 4 is a schematic diagram illustrating an implementation process of determining a roaming number according to an embodiment of the present invention;

fig. 5 is a flowchart of an international roaming number charging method according to an embodiment of the present invention;

FIG. 6 is a block diagram of a system for real-time allocation of international roaming numbers according to an embodiment of the present invention;

FIG. 7 is a block diagram of a number assignment module according to an embodiment of the present invention;

FIG. 8 is a flowchart illustrating an implementation of allocating roaming numbers according to an embodiment of the present invention;

fig. 9 is a flowchart illustrating an implementation of deregistering a roaming number according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a server according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following describes specific technical solutions of the present invention in further detail with reference to the accompanying drawings in the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

To facilitate understanding of the embodiment of the present invention, first, an International Mobile Subscriber Identity (IMSI) and a Mobile station International ISDN Number (MSISDN) are explained.

The IMSI is a mark for distinguishing a mobile Subscriber, is stored in an EF-IMSI file of a Subscriber Identity Module (SIM) card, and can be used to distinguish valid information of the mobile Subscriber. It is simply understood that the IMSI is an Identification (ID) number of the SIM card, and each SIM card can be distinguished. The IMSI consists of a string of decimal digits with a maximum length of 15 digits. The length of the IMSI actually used is mostly 15 digits, and examples shorter than 15 digits are rare. Generally, an IMSI consists of three parts: MCC (Mobile Country Code), length 3 bits; MNC (Mobile network Code), the length of which is determined by the value of MCC, and can be 2 digits (european standard) or 3 digits (north american standard); MSIN (Mobile subscription identification number), the value of which is assigned by the operator. Examples are: 460001234567890 for IMSI, 460 for MCC, which means China; MNC 00, indicating china mobility, MSIN 1234567890.

The MSISDN, the mobile subscriber ISDN number, is the number that uniquely identifies the mobile subscriber in the public switched telephone network switching network numbering plan. It is simply understood that, taking the mobile phone as an example, the MSISDN is the mobile phone number. The MSISDN number consists of three parts CC, NDC and SN, where: CC (Country Code, Country): the country code of china is 86. NDC (National Destination Code ): also called network access codes, distributed to each network operator by communication administration departments of each country, for example, china mobile network access codes are 134-139, 150-152, 188, etc., china unicom is 130-132, 185-186, etc., china telecom is 133, 153, 180, 189, etc.; SN (Subscriber Number, client Number): assigned by the network operator. The MSISDN is stored in the EF-MSISDN file of the SIM card, but this file may typically be changed or even deleted, so that the content of this file is typically not subject to the criteria. The MSISDN number needs to be known and the most common method is to dial a phone to see what number the opposite handset shows. Examples are: MSISDN: 8613912345678, wherein CC is 86, representing China; NDC 139, representing China Mobile; SN is 12345678.

The IMSI is the ID of the SIM card and the MSISDN is the ID of the subscriber. Meaning that when the user goes to the business hall to change the SIM card, the IMSI is changed, and the MSISDN is not changed.

Example one

An embodiment of the present invention provides a calling method, and fig. 1 is a schematic diagram illustrating an implementation flow of the calling method according to the embodiment of the present invention, as shown in fig. 1, the method includes the following steps:

step S101, according to the received call request, the called number is determined.

Here, after receiving a call request from a calling party, a Service Control Point (SCP) parses the call request to obtain a called number.

The SCP is the core of the intelligent network. The core idea of the intelligent network is to separate the exchange function of the telephone exchange from the service control and to give the intelligent network the control function of the value-added service. Therefore, the Service control Point needs to assume the control function of all services provided by the intelligent network, and further, the main function of the SCP is to start different Service logics according to various call requests sent by the Service Switch Point (SSP), so as to implement call requests of various intelligent services.

And step S102, if the terminal corresponding to the called number is in a roaming state, acquiring a roaming number corresponding to the called number.

Here, before the step S102, the method further includes: judging whether the terminal corresponding to the called number is in a roaming state, wherein if the terminal corresponding to the called number is in the roaming state, the step S102 is carried out; and if the terminal corresponding to the called number is not in a roaming state, continuing the call by using the called number.

Roaming refers to a function in which a mobile station (terminal) leaves a service area registered by itself and, after moving to another service area, the mobile communication system can still provide services to the mobile station. It should be noted that in the embodiments of the present invention and other embodiments, the roaming state refers to an international roaming state. International roaming refers to a series of services provided by mobile communication systems, such as call, short message, multimedia message, internet access of mobile phones, etc., which can be enjoyed abroad.

Judging whether the terminal corresponding to the called number is in a roaming state, namely judging whether the country code of the home location of the called number is the same as the country code of the current position of the called number, and if the country code of the home location of the called number is the same as the country code of the current position of the called number, determining that the terminal corresponding to the called number is not in the roaming state; and if the country code of the home location of the called number is different from the country code of the current location of the called number, the terminal corresponding to the called number is considered to be in a roaming state.

In the implementation process, step S102 may be implemented by the following steps:

step S1021, if the terminal corresponding to the called number is in roaming state, the service control node sends request message for obtaining roaming card information to the number allocation server;

here, the request message carries a called number. After receiving the request message, the number distribution server acquires a called number and inquires roaming card information bound with the called number according to the called number; and sending the roaming card information to a service control node.

In step S1022, the service control node receives the roaming card information sent by the number allocation server, and obtains the card number status of the called number in the roaming card information.

Here, the number assignment server stores the binding relationship between the called number and the roaming card information, and as for the processing procedure of determining the roaming number of the called number by the number server, the method for determining the roaming number provided in other embodiments may be utilized.

The card number state of the called number comprises: unallocated, allocated, logged off, and the like.

In step S1023, if the card number status of the called number is allocated, a roaming number is obtained from the roaming card information.

Here, if the card number status of the called number is allocated, it indicates that a virtual roaming card is allocated for the called number, and at this time, the call can be continued through the card number of the roaming card; if the card number state of the called number is unallocated or cancelled, it indicates that no virtual roaming card is allocated to the called number or the virtual roaming card is cancelled, and the call can be continued only through the called number.

Step S103, the roaming number is used for continuing the call.

After the step S103, the method further includes: the service control point submits the information of roaming card number, roaming card IMSI, roaming country code, etc bound by the called number to the online charging system, which can set special charging for the call, the special charging mode is much lower than the cost of directly using the called number to continue the call.

In other embodiments, if the roaming user is the calling party, the roaming number may be determined according to the calling number so as to call the called party by using the roaming number, and of course, the calling party user may also call the called party by using its own calling number.

In the calling method provided by the embodiment of the invention, firstly, a called number is determined according to a received calling request; if the terminal corresponding to the called number is in a roaming state, acquiring a roaming number corresponding to the called number; and then the roaming number is used for continuing the call, and the information of the roaming card number, the roaming card IMSI, the roaming place country code and the like bound to the called number is submitted to an online charging system, and the online charging system can set that special charging is adopted for the call.

Example two

Fig. 2 is a schematic flow chart illustrating an implementation of the method for determining a roaming number according to the embodiment of the present invention, and as shown in fig. 2, the method includes the following steps:

step S201, when the terminal position of a user changes, obtaining the user identification card information of the user and the current position information of the terminal;

here, the user identification card information includes at least: a Subscriber's Mobile Subscriber International integrated services digital network number (MSISDN) and an IMSI. The MSISDN is used to determine the country code of the home location, the Number distribution status, the Number of the roaming card, the International Mobile Subscriber Identity (IMSI) of the roaming card, and the country code of the roaming location corresponding to the MSISDN.

In the embodiment of the present invention, the change of the Location of the user refers to that the mobile phone of the user re-registers the current Location on a Visitor Location Register (VLR). The user position changes really or the mobile phone is turned off and on, and other scenes can register the position again, and before distributing the international roaming number to the user, whether the user position changes really must be judged.

Step S202, determining the roaming number of the user according to the user identification card information and the current position information;

here, the current location information includes at least a current location country code. In the implementation process, step S202 can be implemented by the following steps:

step S2021, obtaining MSISDN of the user according to the user identification card information;

step S2022, determining the status of MSISDN, home country code, and roaming country code according to the MSISDN.

Step S2023, if the MSISDN status is not allocated and the current location country code is different from the home country code, acquiring pre-stored allocable roaming card information.

Here, if the status of the MSISDN is unallocated, where unallocated refers to unallocated virtual numbers (roaming numbers), and the current location country code is different from the home country code, it indicates that the roaming status information of the user terminal is from the home to the first roaming place. In other embodiments, the roaming state information of the user terminal may also be from the first roaming place to the second roaming place, from the first roaming place to the home, no roaming, no change in roaming place, etc.

If the card state is allocated and the current position country code is different from the country code of the roaming place, indicating that the roaming state information of the user is from a first roaming place to a second roaming place; if the card state is allocated and the current position country code is the same as the country code of the home location, indicating that the roaming state information of the user is from a first roaming place to the home location; if the card state is not allocated and the current position country code is the same as the home country code, the roaming state information of the user is no roaming; and if the card state is allocated and the current position country code is the same as the country code of the roaming place, indicating that the roaming state information of the user is that the roaming place is not changed.

Here, the assignable roaming card information includes at least: the card number of the roaming card, the card number state of the roaming card, the IMSI state of the roaming card and the country code of the roaming place.

Step S2024, selecting the roaming country code from the allocable roaming card information to be the same as the country code of the current location, and the card number status of the roaming card is allocable and the IMSI status of the roaming card is the card number of the allocable first roaming card and the IMSI of the first roaming card.

Step S2025, determine the card number of the first roaming card as the roaming number of the user.

Step S203, sending the confirmation request message carrying the roaming number to the terminal.

Here, after the step S203, the method further includes:

step 81, judging whether a confirmation response sent by the terminal is received;

here, if the acknowledgement response sent by the terminal is received, the process proceeds to step 82, and if the acknowledgement response sent by the terminal is not received, the process ends. Wherein the failure to receive the confirmation response from the user comprises: the number server does not receive the confirmation response due to the failure of sending the first request, and the number server successfully sends the first request message but does not receive the confirmation response within the preset time period.

Step 82, if the confirmation response sent by the terminal is received, determining the card number of the first roaming card, the IMSI of the first roaming card and the country code of the roaming place as the information of the first roaming card;

and 83, binding the first roaming card information with the MSISDN, and setting the card number state of the first roaming card and the IMSI state of the first roaming card as occupied.

In the embodiment of steps S2021 to S2025 and steps 81 to 83, after the user moves from the home location to the first roaming location, the first roaming card number is allocated and the association relationship between the MSISDN and the first roaming card is bound: the number distribution server searches the corresponding roaming card number and the roaming card IMSI according to the current position country code (the country code of the MSISDN location) of the user, if the roaming card is not distributed or can be distributed again after being released, the roaming card is distributed to the MSISDN, and the state of the roaming card is updated to be occupied. And binding the MSISDN, updating the MSISDN information of the roaming card, and updating the roaming card number, the IMSI and the country code information of the roaming place of the MSISDN.

It should be noted that, in the embodiment of the present invention, the MSISDN in the Subscriber identity module information is used to determine the roaming Number, and in other embodiments, the roaming Number may also be determined according to the IMSI in the Subscriber identity module information, and at this time, the home country code, the Number allocation state, the roaming card Number, the roaming card International Mobile Subscriber identity Number (IMSI), and the roaming country code corresponding to the IMSI may be determined by using the IMSI. The process of determining the roaming number using the IMSI is similar to the process of using the MSISDN, and the implementation of determining the roaming number using the MSISDN may be referred to in the implementation process.

In the method of the international roaming number provided by the embodiment of the invention, firstly, when the terminal position of a user changes, the user identity identification card information of the user and the current position information of the terminal are obtained; then determining the roaming number of the user according to the user identification card information and the current position information; and finally, sending the confirmation request message carrying the roaming number to the terminal. Therefore, the international roaming number can be flexibly allocated in real time according to the position information and the roaming place information of the terminal, and the user experience is improved.

EXAMPLE III

Based on the foregoing embodiment, an embodiment of the present invention further provides a method for determining a roaming number, fig. 3 is a schematic flow chart illustrating an implementation of the method for determining a roaming number according to the embodiment of the present invention, and as shown in fig. 3, the method includes the following steps:

step S301, the number distribution server receives a first request message for the user to open the international roaming service in the virtual operator.

Here, the first request message carries the MSISDN of the user.

Step S302, the number distribution server initializes the user identification card information of the user according to the MSISDN.

Here, the user identification card information includes at least: IMSI, MSISDN, country code of home location, state of MSISDN, card number of roaming card, IMSI of roaming card, country code of roaming location. Wherein, the country code of the attribution can be obtained according to the MSISDN; the status of the MSISDN includes: unallocated, allocated, logged off, and the like, and is initially set to unallocated; the card number of the roaming card, the IMSI of the roaming card and the country code of the roaming place are the distributed roaming card information and are initially set to be null.

Step S303, the number distribution server writes the user identification card information of the user into a database of the number distribution server.

Step S304, when the position of the user changes, the number distribution server acquires the user identification card information and the current position information of the user.

Step S305, the number distribution server determines the state of MSISDN, the country code of the home country and the country code of the roaming place according to the user identification card information.

Step S306, if the MSISDN status is the allocated roaming number and the current location country code is different from the roaming place country code, the number allocation server unbinds the first roaming card information and the MSISDN.

Here, the first roaming card information is roaming card information bound to the MSISDN.

Step S307, the number assignment server updates the card status of the first roaming card to be releasable and reassignable, and updates the IMSI status of the first roaming card to be releasable and reassignable.

In step S308, the number assignment server obtains pre-stored information of assignable roaming cards.

Here, the assignable roaming card information includes at least: the number of the roaming card, the card number state of the roaming card, the IMSI state of the roaming card and the country code of the roaming place. Wherein, roaming card state includes: unallocated, pre-allocated, occupied, released allocable, released unallocated, and the like.

In other embodiments, before step S305, the method further comprises: the virtual operator acquires the allocable roaming card information from the real operator and writes the allocable roaming card information into the number allocation server in advance. In other embodiments, the roaming card information may further include: the bound MSISDN.

Step S309, the number allocation server selects the country code of the roaming place from the allocable roaming card information to be the same as the country code of the current position, and the card number state of the roaming card is allocable and the IMSI state of the roaming card is the card number of the allocable second roaming card and the IMSI of the second roaming card;

in step S310, the number assignment server determines the card number of the second roaming card as the roaming number of the user.

In other embodiments, after the step S310, the method further includes:

step 41, the number server determines the second roaming card number, the second roaming card IMSI and the roaming place country code as the second roaming card information;

step 42, binding the second roaming card information with the card number of the user, and setting the state of the second roaming card and the IMSI state of the second roaming card as pre-allocation;

step 43, sending the confirmation request carrying the second roaming card information to the user;

step 44, if the confirmation response of the user is received, setting the state of the second roaming card and the state of the IMSI of the second roaming card to be occupied.

Step 45, if the confirmation response of the user is not received, the second roaming card information and the card number of the user are unbound; and setting the second roaming card state and the second roaming card IMSI state as unallocated.

In the embodiment of steps 41 to 45, the user moves from the first roaming place to the second roaming place, reallocates the roaming card and updates the association relationship between the MSISDN and the roaming card: the number distribution server updates the state of the first roaming card to be released and redistributed, and clears the MSISDN information associated with the first roaming card; and the number distribution server searches the corresponding second roaming card number and IMSI according to the country code of the MSISDN location, if the state of the second roaming card is not distributed or can be distributed after being released, the second roaming card is distributed to the main card, and the state of the second roaming card is updated to be occupied. And binding the second roaming card and the MSISDN, updating the MSISDN information of the second roaming card, and updating the roaming information of the MSISDN into the second roaming card, the IMSI of the second roaming card and the country code of the second roaming place.

In other embodiments, if the status of the MSISDN is the allocated roaming number and the current location country code is the same as the home country code, that is, if the roaming status information of the subscriber is from the first roaming place to the home place, and it is necessary to release the first roaming card information, in the implementation process, the following steps may be performed:

step 51, if the MSISDN state is the distributed roaming number and the current position country code is the same as the home country code, updating the state of the subscriber identity card to be logged off;

step 52, unbinding the first roaming card information and the card number of the user identification card;

step 53, updating the card number state of the first roaming card to be released and reallocated, and setting the IMSI state of the first roaming card to be updated to be released and unallocated;

and step 54, storing the corresponding relation between the first roaming card information and the card number of the user identification card. In the embodiment of steps 51 to 54, the user moves from the first roaming place to the home place, releases the allocated first roaming card and logs off the association relationship between the subscriber identity card and the first roaming card: the number distribution server updates the state of the first roaming card to be released and redistributed, and clears the card number information of the user identification card associated with the first roaming card; the number distribution server updates the state of the subscriber identity card to be logged out. In particular, after logout, the roaming card information in the subscriber identity card can be retained, and if the subscriber roams to the place again, the same roaming card can be preferentially allocated.

In other embodiments, the method further comprises:

step 61, under the condition that the user closes the international roaming service, unbinding the first roaming card information and the MSISDN, wherein the first roaming card information is the roaming card information bound to the MSISDN, and the first roaming card information at least includes: the card number of the first roaming card, the card number state of the first roaming card and the IMSI state of the first roaming card;

step 62, updating the card number state of the first roaming card to release reallocation, and updating the IMSI state of the first roaming card to release reallocation;

in the embodiment of steps 61 to 62, when the user finishes roaming, the international roaming service may be closed at the virtual operator account: the number distribution server deletes the information of the user, releases the roaming card at the same time, and updates the state of the roaming card to be redistributed when the roaming card is released.

In the method for determining a roaming number provided by the embodiment of the invention, firstly, a number allocation server receives a first request message for a user to open an international roaming service in a virtual operator, and writes card information of the user into a database of the number allocation server; when the position of the user changes, the number allocation server acquires the card information and the current position information of the user, and then if the roaming state information of the user is from a first roaming place to a second roaming place, the roaming card is switched; therefore, the system can automatically switch the virtual cards of the roaming places, the inconvenience caused by frequent card change of users is avoided, the same virtual roaming cards can be preferentially distributed to the users who roam to the same roaming place for a plurality of times, and the user experience is improved; meanwhile, an international roaming service is provided for operators, so that the loss of users can be avoided, and the income of the international roaming service is stabilized.

Example four

Aiming at the problems of high cost of international roaming users, inconvenience caused by frequent card change, fixed roaming area and the like, the embodiment of the invention provides a method for determining roaming numbers firstly, and fig. 4 is a schematic view of a flow for determining roaming numbers provided by the embodiment of the invention, as shown in fig. 4, the method comprises the following steps:

step S401, when the user position changes, the number distribution server judges the roaming state information of the user;

here, the user position change means: the subscriber handset re-registers the current location on a Visitor Location Register (VLR). The user position changes really or the mobile phone is turned off and on, and other scenes can register the position again, and before distributing the international roaming number to the user, whether the user position changes really must be judged.

The user roaming state information includes: the user position moves from home to roaming, from roaming a to B, from roaming to home.

And when the user re-registers the position information, judging the roaming state information of the user.

Specifically, the number assignment server receives a Location Update request (UL) from a Home Location Register (HLR), which includes: the method comprises the following steps that a main card number (HOME _ MSISDN) and a country code (LOCAL _ CC) of a current position are obtained through the HOME _ MSISDN, the number distribution STATE (HOME _ STATE), the HOME country code (HOME _ CC) and the roaming place country code (ROAM _ CC) are judged according to the HOME _ STATE, the HOME _ CC, the ROAM _ CC and the LOCAL _ CC:

in STATE 1, if HOME _ STATE is not allocated and LOCAL _ CC is different from HOME _ CC, the user goes from HOME to roaming;

in STATE 2, if HOME _ STATE is allocated and LOCAL _ CC is the same as HOME _ CC, the user roams from the roaming location to the HOME location.

STATE 3, if HOME _ STATE is allocated and LOCAL _ CC is different from ROAM _ CC, the user ROAMs from place A to place B;

in particular, a scene that does not satisfy the above condition may be regarded as a location unchanged.

Step S402, distributing, switching and canceling the virtual international roaming card according to the current roaming state of the user.

Here, allocating the roaming card means: when the user position moves from the home location to the roaming location, the binding main card is associated with the roaming card; switching roaming cards means: updating the association between the main card and the roaming card when the user position moves from the roaming place A to the roaming place B; the roaming card logout means that: when the user position moves from the roaming place to the home place, the association between the main card and the roaming card is released.

And the number distribution server distributes virtual roaming card exchange for the user in the state 1 according to the user roaming state, cancels the roaming card for the user in the state 2 and switches the virtual roaming card for the user in the state 3.

In other embodiments, assigning the virtual roaming card further comprises: the number allocation server selects ROAM _ CC and LOCAL _ CC to be the same in the virtual roaming card resources, ROAM _ MSISDN with the STATE of being allocable or releasing the allocable STATE and ROAM _ IMSI with the STATE of being allocable, binds ROAM _ MSISDN and ROAM _ IMSI and ROAM _ CC into the user card, and updates ROAM _ MSISDN _ STATE and ROAM _ IMSI _ STATE into pre-allocation; the number distribution server informs the user of the pre-distributed virtual card information, updates HOME _ STATE to be distributed after receiving the user confirmation, and updates ROAM _ MSISDN _ STATE and ROAM _ IMSI _ STATE to be occupied.

Particularly, the number allocation server sends a notification to the user that the user fails or the user is not confirmed for a long time, and in order to ensure that the virtual card resources are not occupied for a long time, the roaming card can be released first, and the ROAM _ MSISDN _ STATE and the ROAM _ IMSI _ STATE are not allocated.

Deregistering the virtual roaming card further includes: the number distribution server updates HOME _ STATE to be logged out, releases the bound ROAM _ MSISDN and ROAM _ IMSI, updates ROAM _ MSISDN _ STATE to be released and reallocateable, and updates ROAM _ IMSI _ STATE to be released and not reallocateable.

It should be noted that the number assignment server may retain the information of the roaming card that the user last assigned, and preferentially assign the same roaming card when the user roams to the same roaming area next time.

It should be noted that once the allocation of the ROAM _ IMSI is successful, the ROAM _ IMSI cannot be reused after being logged off, and when the resources are exhausted, the operator processing party is required to be reused.

Switching the virtual roaming card further comprises: and logging off the A-place virtual roaming card and allocating the B-place virtual roaming card. And will not be described in detail.

In this embodiment, before allocating, switching, and deregistering the virtual card according to the current roaming location, the method further includes: configuring usable virtual roaming card resources, wherein the virtual roaming card resources at least comprise: roaming card number information and roaming card IMSI information.

In other embodiments, before the step S401, the method further includes: the user opens the international roaming service in the virtual operator. In the implementation process, a user opens the international roaming service in a virtual operator, an account opening request needs to be sent to a number allocation server, and after receiving the account opening request, the number allocation server writes the information of the main card into a database of the user. The master card information includes at least: a master card number (HOME _ MSISDN), a HOME country code (HOME _ CC), a number assignment STATE (HOME _ STATE), a roaming card number (ROAM _ MSISDN), a roaming card IMSI (ROAM _ IMSI), and a roaming place country code (ROAM _ CC).

The HOME _ STATE comprises the steps of account opening unallocated, allocated and cancelled, and is initially set as account opening unallocated; and the ROAM _ MSISDN, the ROAM _ IMSI and the ROAM _ CC are the distributed roaming card information and are initially set to be null.

In other embodiments, before the user applies for opening the international roaming service, the operator configures allocable roaming card information to the number allocation server in advance, where the roaming card information at least includes: roaming card number (ROAM _ MSISDN), roaming card number status (ROAM _ MSISDN _ STATE), roaming card IMSI (ROAM _ IMSI), roaming card IMSI status (ROAM _ IMSI _ STATE), roaming place country code (ROAM _ CC).

Wherein, ROAM _ MSISDN _ STATE includes unallocated, pre-allocated, occupied, released and available reallocation, and is initially unallocated; the ROAM _ IMSI _ STATE comprises unallocated, pre-allocated, occupied, released and unallocated, and is initially unallocated.

In the embodiment of steps S401 to S402, the virtual operator is applied to the international roaming service, the roaming state is determined according to the current location and the home location of the user, and the virtual roaming card is allocated, switched, and cancelled according to the roaming state, so as to implement call connection to the virtual roaming card of the roaming location.

Fig. 5 is a flowchart of an international roaming number charging method according to an embodiment of the present invention. As shown in fig. 6, the method includes:

step S501, when a user is called in, judging the current roaming state of the user;

here, the user roaming state means: the address of the visitor location register is not a country code.

Step S502, according to whether the user roams, the main card or the virtual international roaming card is selected to continue the call.

Here, when the user is called, the service control point selects to continue the HOME _ MSISDN or the ROAM _ MSISDN according to whether the user is currently in the international roaming state. Further, the service control point judges if the user is in international roaming state, at this time, the call is connected to ROAM _ MSISDN, and special charging is marked to the online charging system. Otherwise, the call is continued to the HOME _ MSISDN.

When the user is called out as a calling party, the main card or the roaming card can be selected to be called out according to whether the user is in the international roaming state currently.

In the method for determining the roaming number provided by the embodiment of the invention, firstly, a user opens the international roaming service in a virtual operator; the number distribution server judges that the user is from the home location to the roaming location, then distributes a roaming card (ROAM _ MSISDN), logs off the roaming card from the roaming location to the home location, and switches the roaming card from the roaming location A to the roaming location B; calling a HOME card (HOME _ MSISDN) of an international roaming user, inquiring roaming card information corresponding to the HOME card on a number allocation server by a Service Control Point (SCP), and continuing the call to the international roaming card; an Online Charging System (OCS) adopts a special charging scheme for the user; the user closes the international roaming service at the virtual operator. Therefore, the current position of the user can be acquired in real time, the roaming state is determined according to the current position and the home position, the allocation, switching and logout of the virtual roaming number are dynamically realized, a real-time and flexible international roaming number allocation scheme is provided, and the user experience is improved; the international roaming of the user is judged, and the call is connected to the virtual roaming number, so that the international roaming cost is reduced for the user, and the method has economic and technical values.

EXAMPLE five

Fig. 6 is a schematic structural diagram illustrating a system for allocating an international roaming number in real time according to an embodiment of the present invention, and as shown in fig. 6, the system 600 at least includes: a number assignment module 601 and a call control module 602, wherein:

the number assignment module 601 is configured to communicate with a Business Operation Support System (BOSS), a Home Location Register (HLR), a user TERMINAL (term), a core network (VLR/Mobile Switching Center (MSC)), and the like.

Here, the number allocation module receives international roaming service opening and closing requests of the service operation support system; the number allocation module receives a location Update (UL) request of a home location register; the number distribution module receives a confirmation message after the user downloads the certificate; the number distribution module informs the BOSS of the association relationship between the main card and the roaming card; the number distribution module informs the user of the association relationship between the main card and the roaming card.

The process of opening/closing the international roaming service by the user comprises the following steps: BOSS sends an account opening request to OTA, OTA stores the information of the main card, BOSS informs HLR of the main card to update the subscription information.

The number distribution module receives a location update request of the HLR: when the user position changes, the visitor location register sends an UL request to the HLR of the main card, the HLR forwards a message to the OTA, and the OTA judges the roaming state according to the current position in the UL and the country code of the home location: if the user moves from the home location to the roaming location, the OTA allocates a roaming card and IMSI to the user according to the roaming country code, and informs the BOSS of the allocated card information, and the BOSS synchronizes to the HLR. If the user moves from the roaming place to the home place, the OTA logs off the roaming card and the IMSI, and informs the BOSS of the released card information, and the BOSS synchronizes to the HLR. If the user moves from roaming place A to roaming place B, the roaming card of place A is cancelled first, and the roaming card of place B is redistributed.

The number distribution module informs the user of the association relationship between the main card and the roaming card and receives the user confirmation information; and simultaneously informing the association relationship between the main card and the roaming card to the BOSS, and informing the HLR by the BOSS.

The call control module 602 is configured to process a call triggered by the core network side, and if the user roams internationally, connect to the allocated virtual international roaming card.

In other embodiments, the call control module 602 may also be configured to identify special charges to an online charging system.

Fig. 7 is a schematic diagram of a composition structure of a number assignment module according to an embodiment of the present invention, and as shown in fig. 7, the number assignment module 601 at least includes: a flow control module 6011, a peripheral communication module 6012, a data storage module 6013, a roaming state monitoring module 6014, and a number management module 6015, wherein:

the process control module 6011 is configured to coordinate and control a timing sequence and a session of an overall process.

Here, the OTA needs to communicate with the HLR, the BOSS, the TERMINAL (TERMINAL), and the like, and each procedure corresponds to different communication timing and session.

Fig. 8 is a flow of implementing the allocation of roaming numbers according to the embodiment of the present invention, and as shown in fig. 8, the flow includes the following steps:

step 801, when the user location changes, the visitor location register sends a UL request to the HLR of the main card.

In step 802, the HLR forwards the message to the OTA, which determines the roaming status based on the current location in the UL and the country code of the home location.

And step 803, if the user moves from the home location to the roaming location, the OTA allocates the roaming card and the IMSI to the user according to the roaming country code, and notifies the user of the association relationship between the main card and the roaming card.

In step 804, the OTA receives the acknowledgement message of the user.

The OTA notifies the BOSS of the allocated card information in step 805.

The BOSS synchronizes the card information allocated to the subscriber to the HLR, step 806.

Fig. 9 is a schematic view of a flow of implementing logout of a roaming number according to an embodiment of the present invention, and as shown in fig. 9, the flow includes the following steps:

step 901, when the user location changes, the visitor location register sends an UL request to the HLR of the main card.

In step 902, the HLR forwards the message to the OTA, which determines the roaming status based on the current location in the UL and the country code of the home location.

In step 903, if the user moves from the roaming place to the home place, the OTA logs off the roaming card and IMSI and notifies the BOSS of the released card information.

In step 904, the BOSS synchronizes to the HLR.

Other processes also include:

service opening/closing: BOSS-OTA, OTA-BOSS;

allocating/deregistering a roaming number: HLR-OTA, OTA-TERMINAL, TERMINAL-OTA, OTA-BOSS;

switching roaming numbers: HLR-OTA, OTA-BOSS, OTA-TERMINAL, TERMINAL-OTA, OTA-BOSS.

The peripheral communication module 6012 is configured to communicate with various peripheral devices and perform communication protocol conversion.

Here, the peripheral communication module 6012 is configured to receive a virtual card resource update request of the BOSS, receive a service activation/deactivation request of the BOSS, receive an UL request reported by an HLR, and receive a user confirmation message.

In other embodiments, the peripheral communication module 6012 is further configured to send a roaming number notification to the BOSS, and send a roaming number notification to the user.

The data storage module 6013 is configured to store the user information, the virtual international roaming number information, and an association relationship between the user information and the virtual international roaming number information.

Here, the data storage module 6013 is configured to receive a service opening/closing request from the peripheral communication module 6012, and store/delete the user card information.

In other embodiments, the data storage module 6013 is further configured to receive a virtual card resource update request from the peripheral communication module, and store allocable virtual roaming card information.

In other embodiments, the data storage module 6013 is further configured to receive a request from the number management module 6015, and store the information of the subscriber card, the virtual roaming card, and the association relationship between the two.

The roaming state monitoring module 6014 is configured to monitor a roaming state of the user and report the roaming state to the number management module.

Here, in the actual implementation of the monitoring of the roaming state of the user, the roaming state of the user is determined by receiving the real-time location information acquired by the peripheral communication module and combining the home location of the user in the data storage module. The roaming state of the user includes, but is not limited to:

state 1, if the current position of the user is the same as the home location, roaming is not performed;

state 2, if the current position of the user is different from the home location, the user moves from the home location to the roaming location;

state 3, if the current position of the user is the same as the allocated roaming place, the roaming place is not changed;

state 4, if the current position of the user is the same as the home location and is different from the allocated roaming location, the user moves from the roaming location to the home location;

and 5, if the current position of the user is different from the home location and the allocated roaming location, the user moves from the roaming location A to the roaming location B.

When the roaming state monitoring module 6014 monitors the state 2, the state 4, and the state 5, it communicates with the number management module 6015.

The number management module 6015 is configured to update the information of the subscriber card, the virtual roaming card, and the association relationship between the subscriber card and the virtual roaming card in real time after receiving the notification of the roaming state change from the roaming state monitoring module 6014, and report the information to the data storage module 6013.

Here, the number management module 6015 allocates the roaming card number and the roaming card IMSI in the allocable state for the user in the state 2, cancels the roaming card number and the roaming card IMSI in the allocated state for the user in the state 4, and switches the roaming card number and the roaming card IMSI for the user in the state 5, including canceling the roaming card number and the roaming card IMSI in the allocated state and allocating the roaming card number and the roaming card IMSI in the allocable state.

It should be noted that the description of the system embodiment for allocating an international roaming number in real time is similar to the description of the method embodiment, and has similar beneficial effects to the method embodiment, and therefore, the description is omitted here for brevity. For technical details not disclosed in the embodiment of the system for allocating an international roaming number in real time of the present invention, reference should be made to the description of the embodiment of the method of the present invention for understanding.

EXAMPLE six

An embodiment of the present invention provides a server, fig. 10 is a schematic diagram illustrating a composition structure of a server according to an embodiment of the present invention, and as shown in fig. 10, the server 1000 includes a processor 1001 and a storage medium configured to store executable instructions, where:

processor 1001 is configured to execute stored executable instructions including:

determining a called number according to the received call request;

and continuing the call by using the roaming number.

An embodiment of the present invention further provides a server, where the server at least includes a processor and a storage medium configured to store executable instructions, where:

determining the roaming number of the user according to the user identity identification card information and the current position information;

and sending the confirmation request message carrying the roaming number to the terminal.

It should be noted that the description of the server embodiment is similar to the description of the method embodiment, and has similar beneficial effects to the method embodiment, and therefore, the description is not repeated. For technical details not disclosed in the server embodiment of the present invention, reference is made to the description of the method embodiment of the present invention for understanding.

Accordingly, embodiments of the present invention provide a computer storage medium having computer-executable instructions stored therein, the computer-executable instructions being configured to perform methods for determining a roaming number and calling methods provided by other embodiments of the present invention.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A method for calling, the method comprising:

determining a called number according to the received call request;

continuing the call request by using the roaming number;

if the terminal corresponding to the called number is in a roaming state, acquiring a roaming number corresponding to the called number, including: if the terminal corresponding to the called number is in a roaming state, the service control node sends a request message for acquiring roaming card information to a number allocation server; the service control node receives roaming card information sent by the number allocation server and acquires the card number state of a called number in the roaming card information; and if the card number state of the called number is distributed, acquiring a roaming number from the roaming card information.

2. A method for determining a roaming number, the method comprising:

when the terminal position of a user changes, acquiring user identification card information of the user and the current position information of the terminal, wherein the user identification card information comprises: the MSISDN and IMSI of the user's mobile subscriber;

determining the roaming number of the user according to the user identity identification card information and the current position information; the current location information includes at least: the determining the roaming number of the user according to the user identification card information and the current position information correspondingly comprises:

acquiring the MSISDN of the mobile station integrated service digital network number of the user according to the information of the user identification card;

determining the state of the MSISDN, a country code of a home country and a country code of a roaming place according to the MSISDN of the user;

if the MSISDN state is not a roaming number, and the current location country code is different from the home country code, acquiring pre-stored allocable roaming card information, wherein the allocable roaming card information at least comprises: the card number of the roaming card, the card number state of the roaming card, the IMSI state of the roaming card and the country code of the roaming place;

selecting a roaming place country code which is the same as the current position country code from the allocable roaming card information, wherein the card number state of the roaming card is allocable, and the IMSI state of the roaming card is the card number and IMSI of the allocable first roaming card;

and determining the card number of the first roaming card as the roaming number of the user.

3. The method of claim 2, wherein after the step of determining the roaming number of the subscriber based on the subscriber identification card information and the current location information, the method further comprises:

sending a confirmation request message carrying the roaming number to the terminal;

if the confirmation response of the user is received, determining the card number, the IMSI and the country code of the roaming place of the first roaming card as the first roaming card information;

and binding the first roaming card information with the MSISDN, and setting the card number state and the IMSI state of the first roaming card to be occupied.

4. The method of claim 2, wherein determining the roaming number of the subscriber based on the subscriber identification card information and the current location information, further comprises:

if the state of the MSISDN is the distributed roaming number and the current position country code is different from the roaming place country code, the first roaming card information and the card number of the MSISDN are unbound, wherein the first roaming card information is the roaming card information bound by the MSISDN;

updating the card state of the first roaming card to be released and reallocated, and updating the IMSI state of the first roaming card to be released and unallocated;

selecting a roaming place country code which is the same as the current position country code from the pre-stored distributable roaming card information, wherein the card number state of the roaming card is distributable and the IMSI state of the roaming card is the card number and IMSI of the distributable second roaming card;

and determining the card number of the second roaming card as the roaming number of the user.

5. The method of claim 2, further comprising:

if the MSISDN state is the distributed roaming number and the current position country code is the same as the home country code, updating the MSISDN state to be logged out;

unbinding the first roaming card information from the MSISDN;

updating the card number state of the first roaming card to be released and reallocated and setting the IMSI state of the first roaming card to be updated to be released and unallocated;

and storing the corresponding relation between the first roaming card information and the MSISDN.

6. The method of claim 2, wherein prior to the step of obtaining the home information and the current location information of the user, the method further comprises:

receiving a first request message for a user to open an international roaming service in a virtual operator; wherein, the first request message at least carries the MSISDN;

initializing the user identification card information of the user according to the MSISDN;

and writing the user identification card information of the user into a database of the user.

7. The method of claim 2, further comprising:

under the condition that a user closes international roaming service, first roaming card information and the card number of the MSISDN are unbound, wherein the first roaming card information is the roaming card information bound with the MSISDN, and the first roaming card information at least comprises: the card number of the first roaming card, the card number state of the first roaming card and the IMSI state of the first roaming card;

and updating the card number state of the first roaming card into releasable and reallocating state, and updating the IMSI state of the first roaming card into releasable and reallocating state.

8. A server, comprising at least a processor and a storage medium configured to store executable instructions, wherein:

determining a called number according to the received call request;

continuing the call using the roaming number;

9. A server, comprising at least a processor and a storage medium configured to store executable instructions, wherein:

the current location information includes at least: the determining the roaming number of the user according to the user identification card information and the current position information correspondingly comprises:

10. A computer-readable storage medium having stored therein computer-executable instructions configured to perform the method of calling as provided in claim 1 or the method of determining a roaming number as provided in any one of claims 2 to 7.