CN101662759A - Method and device for identifying roaming state of mobile terminal - Google Patents

Abstract

Embodiments of the present invention provide a method and device for identifying a roaming state of a mobile terminal. The identification method includes: during the communication process between the calling terminal and the called terminal, monitoring the signaling of the mobile application part passing through the gateway mobile switching center/international signaling transfer point of the calling terminal's home network; according to the monitored mobile application Part of the signaling to obtain the country code of the called terminal’s home country, the country code of the current location, and the network number of the network currently in use; according to the country code of the called terminal’s home country, the country code of the current location, and the current Using the network number of the network, and the pre-stored country code of the home country of the calling terminal and the network number of the home network to determine whether the called terminal is in the network to which the calling terminal belongs. Based on the identification method, the present invention also provides a corresponding device. The technical solution of the embodiment of the present invention overcomes that there is no related solution in the prior art to determine whether the called terminal is in the home network of the calling terminal.

Description

Method and device for identifying roaming state of mobile terminal

technical field

The embodiments of the present invention relate to the field of communication technologies, and in particular, to a method and device for identifying a roaming state of a mobile terminal.

Background technique

With the continuous deepening of economic and cultural globalization, economic and cultural exchanges between different countries have become more frequent and closer, and it is common for mobile terminals to be in a state of international roaming. When an international roaming mobile terminal leaves its home country and roams to other countries, the primary problem encountered is how to select a mobile network in a roaming country to ensure normal communication of the international roaming mobile terminal. At present, when an international roaming mobile terminal roams into other countries, it generally selects a mobile network found in the roaming country through manual network selection to ensure normal communication.

During the implementation of the present invention, the inventor found that there is no relevant technical means in the prior art to determine the roaming status of the international roaming mobile terminal, that is, the mobile network information selected by the international roaming mobile terminal in the roaming country.

Contents of the invention

Embodiments of the present invention provide a method and device for identifying the roaming state of a mobile terminal, which is used to overcome that there is no related technical solution in the prior art to determine whether the called terminal is in the home network of the calling terminal.

An embodiment of the present invention provides a method for identifying a roaming state of a mobile terminal, the method comprising:

During the communication process between the calling terminal and the called terminal, monitor the signaling of the mobile application part passing through the gateway mobile switching center/international signaling transfer point of the calling terminal's home network;

According to the monitored mobile application part signaling, obtain the country code of the country of origin of the called terminal, the country code of the current location, and the network number of the currently used network;

According to the country code of the country of origin of the called terminal, the country code of the current location, and the network number of the network currently in use, as well as the country code of the country of origin of the calling terminal and the network number of the network of the home network stored in advance, determine the Whether the called terminal is in the home network of the calling terminal.

The embodiment of the present invention also provides a device for identifying the roaming state of a mobile terminal, the device for identifying the roaming state of a mobile terminal includes:

The signaling monitoring module is used to monitor the signaling of the mobile application part passing through the gateway mobile switching center/international signaling transfer point of the calling terminal's home network during the communication process between the calling terminal and the called terminal;

A signaling analysis module, configured to analyze the monitored part of the mobile application signaling, and obtain the country code of the called terminal's home country, the country code of the current location, and the network number of the currently used network;

A state judging module, configured to use the country code of the country of origin of the called terminal, the country code of the current location, and the network number of the network currently in use, as well as the country code of the country of origin and the network of the calling terminal stored in advance. network number, to determine whether the called terminal is in the home network of the calling terminal.

In the embodiment of the present invention, by monitoring the mobile application part signaling passing through the gateway mobile switching center/international signaling transfer point of the calling terminal's home network, and analyzing and obtaining the mobile application part signaling from the monitored mobile application part signaling The country code of the called terminal’s home country, the country code of the current location, and the network number of the network currently in use, according to the country code of the called terminal’s home country, the country code of the current location, and the network number of the network currently in use, and the pre-stored The home country code of the calling terminal and the network number of the home network, so as to determine whether the called terminal is in the home network of the calling terminal, and overcome the lack of relevant technical solutions in the prior art to determine whether the called terminal is in the home network Defects in the home network of the terminal.

Description of drawings

FIG. 1 is a flowchart of an embodiment of a method for identifying a roaming state of a mobile terminal in the present invention;

Fig. 2 is the specific flowchart of determining whether the called terminal is in the home network of the calling terminal;

3 is a signaling diagram of another embodiment of a method for identifying a roaming state of a mobile terminal according to the present invention;

FIG. 4 is a signaling diagram of another embodiment of the method for identifying the roaming state of a mobile terminal according to the present invention;

FIG. 5 is a schematic structural diagram of an embodiment of an apparatus for identifying a roaming state of a mobile terminal according to the present invention.

Detailed ways

How to obtain the information of the mobile network of the operator selected by the international roaming user in the roaming country will become the basis for other operators to carry out follow-up services, such as attracting international roaming customers who choose a competitor's mobile network, thereby increasing the operator's total revenue .

The technical solutions of the embodiments of the present invention will be described in further detail below with reference to the drawings and embodiments.

An embodiment of the present invention, a method for identifying a roaming state of a mobile terminal is shown in Figure 1. In the technical solution of this embodiment, the service server monitors the mobile application part (Mobile Application Part, hereinafter referred to as: MAP) signaling, the mobile application part of the MAP signaling passes through the Gateway Mobile Switching Center (Gateway Mobile Switching Center, hereinafter referred to as: GMSC)/International Signaling Transfer Point (International Signaling Transfer Point) of the home network of the calling terminal Signal Transfer Point, hereinafter referred to as: ISTP), and the service server obtains the country code (Country Code, hereinafter referred to as CC) of the called terminal from the monitored MAP signaling of the mobile application part, the country code CC of the current location, and The network number (National Destination Code, hereinafter referred to as: NDC) of the network is currently used to determine whether the called terminal is in the home network of the calling terminal. In this embodiment, the method for identifying the roaming state of a terminal during mobility specifically includes the following steps:

Step 101, monitoring the mobile application part MAP signaling passing through the gateway mobile switching center GMSC/international signaling transfer point ISTP of the calling terminal's home network;

If the communication between the calling terminal and the called terminal is between networks in different countries, during the communication process between the calling terminal and the called terminal, a gateway mobile switching center GMSC/International Signal The mobile application part MAP signaling of the transfer point ISTP is ordered, and a service server monitors the mobile application part MAP signaling.

Before step 101, the service server may also pre-store the country code CC of the calling terminal's home country and the network number NDC of the home network.

Step 102, according to the monitored MAP signaling of the mobile application part, obtain the country code CC of the called terminal's home country, the country code CC of the current location, and the network number NDC of the currently used network;

The service server analyzes the monitored MAP signaling of the mobile application part, and can obtain the country code CC of the called terminal's home country, the country code CC of the current location, and the network number NDC of the currently used network.

Step 103, according to the country code CC of the called terminal's home country, the country code CC of the current location, and the network number NDC of the currently used network, as well as the country code CC of the home country of the calling terminal and the network number of the home network stored in advance NDC, to determine whether the called terminal is in the home network of the calling terminal.

In the process of communication between the calling terminal and the called terminal, if the calling terminal wants to send a short message to a called terminal, in the process of interaction between the home location register HLR of the called terminal and the short message center SMSC of the home network of the calling terminal, a MAP signaling of the mobile application part that can be monitored by the service server. After the aforementioned steps 101 and 102, the service server obtains the home country code CC of the called terminal, the country code CC of the current location, and the network number NDC of the currently used network from the monitored MAP signaling of the mobile application part, and then combines The home country code CC of the calling terminal and the network number NDC of the home network are pre-stored in the service server, so as to determine whether the called terminal is in the home network of the calling terminal.

Specifically, determining whether the called terminal is in the home network of the calling terminal, as shown in Figure 2, may include the following steps:

Step 113, according to the country code CC of the current location of the called terminal and the country code CC of the country of origin of the called terminal, determine whether the called terminal is an international roaming terminal; if the called terminal is an international roaming terminal, then perform step 123, otherwise Execute step 143;

Step 123, according to the country code CC of the current location of the called terminal and the country code CC of the home country of the calling terminal stored in advance, determine whether the called terminal is an international roaming terminal roaming to the home country of the calling terminal, if so, Then execute step 133; otherwise execute step 143;

Step 133, according to the network number NDC of the network currently used by the called terminal and the pre-stored network number NDC of the home network of the calling terminal, determine whether the called terminal is in the home network of the calling terminal, and then perform step 143;

Step 143, end.

In this embodiment, it is not limited to determine whether the called terminal is in the home network of the calling terminal through the above specific steps 113, 123, 133 and 143.

In this embodiment, by monitoring the mobile application part MAP signaling passing through the gateway mobile switching center GMSC/international signaling transfer point ISTP of the home network of the calling terminal, and from the monitored mobile application part MAP signaling The country code CC of the called terminal's home country, the country code CC of the current location, and the network number NDC of the currently used network are obtained through analysis. According to the acquired country code CC of the called terminal, the country code CC of the current location, and the network number NDC of the currently used network, as well as the pre-stored country code CC of the calling terminal and the network number NDC of the home network , so as to determine whether the called terminal is in the home network of the calling terminal.

Another embodiment of the present invention, a method for identifying the roaming status of a mobile terminal is shown in Figure 3. In the technical solution of this embodiment, the communication process between the calling terminal and the called terminal may specifically include The process of terminal SMS interaction; the service server monitors the mobile application part of the signaling passing through the gateway mobile switching center GMSC/international signaling transfer point ISTP of the calling terminal's home network, which may specifically include:

The short message switching center (Short Message ServiceCentre, hereinafter referred to as: SMSC) of the home network of the monitoring calling terminal sends the home location register (Home Location) of the called terminal through the gateway mobile switching center GMSC/international signaling transfer point ISTP of the home network Register (hereinafter referred to as: HLR) sends a short message routing request message (SEND_ROUTING_INFO_FOR_SM, hereinafter referred to as: SRI_SM), the short message routing request message SRI_SM includes the called terminal's Mobile Station International Integrated Services Digital Number (MobileStation International Integrated Services Digital Number, hereinafter Abbreviation: MSISDN);

Monitor the short message route response message (SEND_ROUTING_INFO_FOR_SM_ACK, SEND_ROUTING_INFO_FOR_SM_ACK, Hereinafter referred to as: SRI_SM_ACK), the short message routing response message SRI_SM_ACK includes the Network Node Number (Network Node Number, hereinafter referred to as: NNN) of the network currently used by the called terminal.

The method for identifying the roaming state of the mobile terminal in this embodiment includes the following processes:

11. The Mobile Switching Center (MSC) at the place where the calling terminal visits submits the short message to the SMSC of the home network of the calling terminal;

12. The short message switching center SMSC of the calling terminal's home network sends a short message routing request message SRI_SM to the called terminal's home location register HLR to ask for the routing information of the called terminal, and the short message routing request message SRI_SM passes through the gateway of the calling terminal's home network The mobile switching center GMSC/international signaling transfer point ISTP, the service server monitors the MAP signaling of the mobile application part of the gateway mobile switching center GMSC/international signaling transfer point ISTP of the calling terminal's home network, and monitors the short message routing request message SRI_SM;

13. The called terminal home location register HLR returns the location of the MSC where the called terminal is currently located to the short message switching center SMSC of the home network of the calling terminal through a short message routing response message SRI_SM_ACK, and the short message routing response message SRI_SM_ACK message passes through the calling terminal The gateway mobile switching center GMSC/international signaling transfer point ISTP of the network to which the calling terminal belongs, the service server monitors the mobile application part MAP signaling of the gateway mobile switching center GMSC/international signaling transfer point ISTP of the calling terminal's home network, and detects The short message routing response message SRI_SM_ACK;

14. The short message switching center SMSC of the home network of the calling terminal sends a short message to the called terminal through the mobile switching center MSC of the network currently used by the called terminal;

15. The mobile switching center MSC of the network currently used by the called terminal returns a message of the sending result of the short message to the short message switching center SMSC of the home network of the calling terminal;

16. The service server acquires the country code CC of the called terminal's country of origin, the country code CC of the current location, the network number NDC of the currently used network, and the pre-stored calling terminal according to the monitored MAP signaling of the mobile application part. The country code CC of the home country and the network number NDC of the home network determine whether the called terminal is in the home network of the calling terminal. The monitored mobile application part MAP signaling includes the SMS routing request message SRI_SM and the SMS routing response message SRI_SM_ACK .

In this embodiment, since the international integrated services digital network number MSISDN of the mobile station includes: the home country country code CC of the called terminal, the network number NDC of the network that the called terminal chooses to use in its home country, and the user number of the called terminal (Subscriber Number, hereinafter referred to as: SN); the network node number (National Node Code, hereinafter referred to as: NNN) of the called terminal's current location includes the country code CC of the called terminal's current location and the network number NDC of the currently used network. The network number NDC of the currently used network refers to the network number NDC of the network selected by the called terminal while roaming.

In this way, in this embodiment, according to the monitored mobile application part MAP signaling, the process of obtaining the country code CC of the called terminal's home country, the country code CC of the current location and the network number NDC of the currently used network can be specifically as follows :

According to the mobile station international integrated service digital network number MSISDN of the called terminal, determine the country code CC of the country of origin of the called terminal;

According to the network node number NNN of the network currently used by the called terminal, the country code CC of the current location of the called terminal and the network number NDC of the network currently used are determined.

In this embodiment, the MAP signaling of the mobile application part may also refer to the signaling of the gateway mobile switching center GMSC/international signaling transfer point ISTP of the calling terminal's home network during the multimedia message interaction process between the calling terminal and the called terminal .

In this embodiment, the short message routing request message SRI_SM and The SMS routing response message SRI_SM_ACK is monitored, and from the monitored SMS routing request message SRI_SM and SMS routing response message SRI_SM_ACK, the country code CC of the called terminal's home country, the country code CC of the current location, and the current network ID of the called terminal are analyzed and obtained. Network number NDC. According to the acquired country code CC of the called terminal's home country, the country code CC of the current location, the network number NDC of the network currently in use, and the pre-stored country code CC and network number NDC of the calling terminal's home country, it is determined that Whether the called terminal is in the home network of the calling terminal overcomes the defect that there is no relevant technical solution in the prior art to determine whether the called terminal is in the home network of the calling terminal.

Another embodiment of the present invention, a method for identifying a roaming state of a mobile terminal is shown in FIG. 4 . In the technical solution of this embodiment, the communication process between the calling terminal and the called terminal may specifically include the process of voice call interaction between the calling terminal and the called terminal. Optimal routing function of switching center GMSC/international signaling transfer point ISTP. In this embodiment, the service server monitors the mobile application MAP part signaling of the gateway mobile switching center GMSC/international signaling transfer point ISTP of the home network of the calling terminal including:

Monitoring the routing request message (SENDING_ROUTING_INFORMATION, hereinafter referred to as: SRI) sent by the gateway mobile switching center GMSC/international signaling transfer point ISTP of the home network of the calling terminal to the called terminal home location register HLR, the routing request message SRI includes the The mobile station international integrated service digital network number MSISDN of the calling terminal;

Monitor the routing response message (SENDING_ROUTING_INFORMATION_ACKNOWLEDGE, hereinafter referred to as: SRI_ACK) sent by the called terminal home location register HLR to the gateway mobile switching center GMSC/international signaling transfer point ISTP of the calling terminal's home network. The routing response message SRI_ACK includes Call the mobile station roaming number (Mobile Station Roaming Number, hereinafter referred to as: MSRN) of the terminal.

As shown in Figure 4, the identification method of the roaming state of the mobile terminal in this embodiment includes:

21. The calling terminal initiates a voice call to the called terminal in the home network and is sent to the gateway mobile switching center GMSC/International Signaling Transfer Point ISTP of the calling terminal's home network;

22. After the gateway mobile switching center GMSC/international signaling forwarding point ISTP receives the voice call, it sends a routing request message SRI to the called terminal home location register HLR, and the service server monitors the forwarding of the voice call through the gateway mobile switching center GMSC/international signaling Click the MAP signaling of the mobile application part of ISTP to monitor the routing request message SRI;

23. The HLR of the called terminal sends a roaming number extraction signaling (PROVIDE_ROAMING_NUMBER, hereinafter referred to as: PRN) to the mobile switching center MSC of the network currently used by the called terminal;

24. The mobile switching center MSC at the current location of the called terminal returns the roaming number extraction success signaling (PROVIDE_ROAMING_NUMBER_ACKNOWLEDGE, hereinafter referred to as: PRN_ACK) to the called terminal home location register HLR. The roaming number extraction success signaling PRN_ACK includes the mobile number of the called terminal. Roaming station number MSRN;

25. The called terminal home location register HLR returns a routing response message SRI_ACK to the gateway mobile switching center GMSC/international signaling transfer point ISTP of the calling terminal's home network, and the routing response message SRI_ACK includes the mobile roaming station number MSRN of the called terminal , the service server monitors the signaling of the mobile application part passing through the gateway mobile switching center GMSC/international signaling transfer point ISTP of the home network of the calling terminal, and monitors the routing response message SRI_ACK;

26. The service server obtains the country code CC of the called terminal, the country code CC of the current location and the network number NDC of the currently used network according to the monitored MAP signaling of the mobile application part of the called terminal, and the pre-stored calling terminal The country code CC of the home country network and the network number NDC of the home network determine whether the called terminal is in the home network of the calling terminal.

In this embodiment, the home country country code CC of the called terminal is obtained from the mobile station international integrated services digital network number MSISDN included in the routing request message SRI; the mobile roaming station number of the called terminal included in the routing response message SRI_ACK The MSRN obtains the country code CC of the current roaming location of the called terminal and the network number NDC of the currently used network. In this way, according to the monitored mobile application part MAP signaling, the process of obtaining the country code CC of the called terminal's home country, the country code CC of the current location and the network number NDC of the currently used network can be specifically as follows:

According to the mobile station international integrated service digital network number MSISDN of the called terminal, determine the country code CC of the country of origin of the called terminal;

According to the mobile station roaming number MSRN of the called terminal, the country code CC of the current location of the called terminal and the network number NDC of the currently used network are determined.

In this embodiment, the routing request message SRI and the routing request message SRI and The route response message SRI_ACK is monitored, and the country code CC of the home country of the called terminal, the country code CC of the current location, and the network number NDC of the currently used network are analyzed from the monitored route request message SRI and route response message SRI_ACK, According to the acquired country code CC of the called terminal's home country, the country code CC of the current location, and the network number NDC of the currently used network, as well as the pre-stored country code CC of the home country network of the calling terminal and the network of the home network NDC, so as to determine whether the called terminal is in the home network of the calling terminal, which overcomes the defect that there is no relevant technical solution in the prior art to determine whether the called terminal is in the home network of the calling terminal.

After determining that the called terminal is not in the home network of the calling terminal, the service server sends a notification message to the called terminal. The notification message is used to prompt the called terminal to select the home network of the calling terminal and inform the called terminal to automatically or passively Select a mobile network, switch from the currently used mobile network to the home network of the calling terminal, and attract the called terminal from the mobile network of the opponent to the home network of the calling terminal, thereby increasing operating income. For example, China Mobile sends "Welcome to China, you can choose China Mobile through manual network selection or automatic network selection on your mobile phone, and China Mobile is willing to provide you with high-quality communication services" to attract international roaming mobile terminals that choose rival mobile networks. The international roaming terminal selects the network of China Mobile.

Specifically, the service server sends a short message routing request message SRI_SM to the called terminal home location register HLR; upon receiving the short message routing request message SRI_SM, the called terminal home location register HLR returns a short message routing response message SRI_SM_ACK, and the short message routing response message SRI_SM_ACK includes There is the location information of the called terminal, such as the country code CC of the current location and the network number NDC of the currently used network. After obtaining the current specific location information of the called terminal, the service server sends the preset notification information to the called terminal in the form of a short message. Here, the current location information of the called terminal can be obtained directly through the short message or voice call between the calling terminal and the called terminal, and the process of re-acquiring the location information of the called terminal by the service server is omitted.

Based on the above technical solution, an embodiment of the present invention also provides a device for identifying a roaming state of a mobile terminal.

FIG. 5 is a schematic structural diagram of an embodiment of an apparatus for identifying a roaming state of a mobile terminal according to the present invention. As shown in FIG. 5 , the device for identifying the roaming state of the mobile terminal in this embodiment specifically includes: a signaling monitoring module 301, a signaling analysis module 302, and a status judgment module 303, wherein the signaling monitoring module 301 is used to monitor the calling terminal and During the communication process of the called terminal, the mobile application part signaling of the gateway mobile switching center GMSC/international signaling transfer point ISTP of the calling terminal's home network is passed; the signaling analysis module 302 is connected with the signaling monitoring module 301 for Analyze the monitored mobile application part MAP signaling, obtain the country code CC of the country of origin of the called terminal, the country code CC of the current location, and the network number NDC of the currently used network; the state judgment module 303 is connected with the signaling analysis module 302, According to the country code CC of the called terminal's home country, the country code CC of the current location, and the network number NDC of the currently used network, as well as the pre-stored country code CC of the calling terminal's home country and the network number NDC of the home network , to determine whether the called terminal is in the home network of the calling terminal.

Specifically, the signaling monitoring module 301 may include: a first monitoring unit 311 and a second monitoring unit 321, wherein the first monitoring unit 311 monitors the short message switching center SMSC of the calling terminal's home network to move through the gateway of its home network The short message routing request message SRI_SM sent by the switching center GMSC/international signaling transfer point ISTP to the called terminal home location register HLR, the short message routing request message SRI_SM includes the mobile station international integrated service digital network number MSISDN of the called terminal; The monitoring unit 321 is used to monitor the short message sent by the called terminal's home location register HLR to the short message switching center SMSC of the calling terminal's home network via the gateway mobile switching center GMSC/international signaling transfer point ISTP of the calling terminal's home network A routing response message SRI_SM_ACK, the short message routing response message SRI_SM_ACK includes the network node number NNN of the network currently used by the called terminal.

Further, the signaling analysis module 302 may specifically include: a first analysis unit 312 and a second analysis unit 322, wherein the first analysis unit 312 is connected to the first monitoring unit 311 for The business digital network number MSISDN determines the country code CC of the called terminal's country of origin; the second analysis unit 322 is connected to the second monitoring unit block 321, and is used to determine the called terminal according to the network node number NNN of the network currently used by the called terminal. The country code CC of the terminal's current location and the network number NDC of the currently used network.

Further, the state judging module 303 may include: a first judging unit 313 and a second judging unit 323, wherein,

The first judging unit 313 is connected to the first analyzing unit 312, and is used to judge whether the called terminal is an international roaming terminal according to the country code CC of the current location of the called terminal and the country code CC of the country of origin of the called terminal;

The second judging unit 323 is connected to both the first analyzing unit 312 and the first judging unit 313, and is used to determine the country code of the current location of the called terminal and the pre-stored calling terminal according to the judging result that the called terminal is an international roaming terminal The country code of the home country of the calling terminal is used to determine whether the called terminal is an international roaming terminal that roams to the home country of the calling terminal;

The third judging unit 333 is connected to both the second judging unit 323 and the second analyzing unit 322, and is used for judging that the called terminal is an international roaming terminal roaming to the home country of the calling terminal, and the called terminal is currently using The network number of the network and the pre-stored network number of the home network of the calling terminal to determine whether the called terminal is in the home network of the calling terminal;

The sending module 343 is connected to the third judging unit 333, and is configured to send notification information to the called terminal, prompting the called terminal to select the home network of the calling terminal. .

The first monitoring unit in this embodiment may also be the first routing request message SRI sent by the gateway mobile switching center GMSC/international signaling transfer point ISTP for monitoring the calling terminal's home network to the called terminal's home location register. A monitoring unit, the routing request message SRI includes the mobile station's international integrated services digital network number MSISDN; the second monitoring unit can also be a gateway mobile switching center GMSC for monitoring the home location register HLR of the called terminal to the home network of the calling terminal /The second monitoring unit of the routing response message SRI_ACK sent by the international signaling transfer point ISTP, the routing response message SRI_ACK includes the mobile station roaming number MSRN of the called terminal.

The first analysis unit can also be used to determine the country code CC of the country of origin of the called terminal according to the mobile station international integrated service digital network number MSISDN of the called terminal; The mobile station roaming number MSRN of the called terminal, the second analysis unit for determining the country code CC of the current location of the called terminal and the network number NDC of the currently used network.

The device for identifying the roaming state of the mobile terminal in this embodiment may further include a storage module connected to the third judging unit for storing the country code CC of the calling terminal's home country and the network number NDC of the home network.

In this embodiment, the signaling monitoring module monitors the mobile application part signal generated by the calling terminal and the called terminal during the communication process and passes through the gateway mobile switching center GMSC/international signaling transfer point ISTP of the calling terminal's home network. The signaling and signaling analysis module analyzes the monitored mobile application part signaling, obtains the country code CC of the called terminal's home country, the country code CC of the current location, and the network number NDC of the currently used network, and the state judgment module according to the acquired The country code CC of the called terminal, the country code CC of the current location, and the network number NDC of the network currently in use, as well as the country code CC of the home country of the calling terminal and the network number NDC of the home network stored in advance, determine Check whether the called terminal is in the home network of the calling terminal.

In the above technical solution of the embodiment of the present invention, the service server may specifically be an International Service Gateway (International Service Gateway, ISG for short) located in the home network of the calling terminal.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (18)

1, a kind of recognition methods of roaming state of mobile terminal is characterized in that, comprising:

In calling terminal and the process that terminal called is communicated by letter, monitoring is through the MAP signaling of the gateway MSC/international signalling transfer point of the home network of calling terminal;

According to the described MAP signaling that monitors, obtain ownership state CC country code, current location CC country code and the current use network of network number of described terminal called;

According to ownership state CC country code, current location CC country code and the current use network of network of described terminal called number, and the ownership state CC country code of described calling terminal of storage in advance and the network number of home network, determine that described terminal called is whether at the home network of described calling terminal.

2, the recognition methods of roaming state of mobile terminal according to claim 1, it is characterized in that, also comprise before the MAP signaling of described monitoring through the gateway MSC/international signalling transfer point of calling terminal home network: store the ownership state CC country code of calling terminal and the network number of home network in advance.

3, the recognition methods of roaming state of mobile terminal according to claim 1 is characterized in that, the process that described calling terminal is communicated by letter with terminal called comprises: the process of calling terminal and terminal called short message interacting.

4, the recognition methods of roaming state of mobile terminal according to claim 3 is characterized in that, described monitoring comprises through the MAP signaling of the gateway MSC/international signalling transfer point of the home network of calling terminal:

The note route request information that the short message switching center of the home network of monitoring calling terminal sends to the terminal called attaching position register through the gateway MSC/international signalling transfer point of its home network, described note route request information comprise the international integrated services digital network of the travelling carriage of described terminal called number;

Monitor the note route response message that described terminal called attaching position register returns to the short message switching center of the home network of described calling terminal through the gateway MSC/international signalling transfer point of the home network of described calling terminal, described note route response message comprises the current use network of network of described terminal called node number.

5, the recognition methods of roaming state of mobile terminal according to claim 4, it is characterized in that, described according to the described MAP signaling that monitors, the ownership state CC country code, current location CC country code and the current use network of network that obtain described terminal called number comprise:

According to the international integrated services digital network of the travelling carriage of described terminal called number, determine the ownership state CC country code of described terminal called;

According to the current use network of network of described terminal called node number, determine described terminal called current location CC country code and current use network of network number.

6, the recognition methods of roaming state of mobile terminal according to claim 1 is characterized in that, the process that described calling terminal is communicated by letter with terminal called comprises: calling terminal and terminal called carry out the mutual process of audio call.

7, the recognition methods of roaming state of mobile terminal according to claim 6 is characterized in that, described monitoring comprises through the MAP signaling of the gateway MSC/international signalling transfer point of the home network of calling terminal:

The route request information that the gateway MSC/international signalling transfer point of the home network of monitoring calling terminal sends to the terminal called attaching position register, described route request information comprise the international integrated services digital network of the travelling carriage of described terminal called number;

Monitor the route response message of described terminal called attaching position register to gateway MSC/international signalling transfer point transmission of the home network of described calling terminal, described route response message comprises the travelling carriage roaming number of described terminal called.

8, the recognition methods of roaming state of mobile terminal according to claim 7, it is characterized in that, described according to the described MAP signaling that monitors, the ownership state CC country code, current location CC country code and the current use network of network that obtain described terminal called number comprise:

According to the international integrated services digital network of the travelling carriage of described terminal called number, determine the ownership state CC country code of described terminal called;

According to the travelling carriage roaming number of described terminal called, determine described terminal called current location CC country code and current use network of network number.

9, according to the recognition methods of the described roaming state of mobile terminal of the arbitrary claim of claim 1 to 8, it is characterized in that, described ownership state CC country code, current location CC country code and current use network of network number according to described terminal called, and the ownership state CC country code of described calling terminal of storage in advance and the network number of home network, determine that whether described terminal called comprises at the home network of described calling terminal:

Ownership state CC country code according to described terminal called current location CC country code and terminal called, judge whether described terminal called is the international roaming terminal, if described terminal called is the international roaming terminal, then according to the described terminal called current location CC country code and the ownership state CC country code of described calling terminal of storage in advance, judge whether described terminal called is the international roaming terminal that roams into the ownership state of described calling terminal, if described terminal called is not the international roaming terminal, then finish;

If described terminal called is the international roaming terminal that roams into the ownership state of described calling terminal, then further according to the current use network of network of described terminal called number and the network number of the home network of the described calling terminal of storage in advance, determine that described terminal called is whether at the home network of described calling terminal, if described terminal called is not to roam into the international roaming terminal that described calling terminal belongs to state, then finish.

10, the recognition methods of roaming state of mobile terminal according to claim 9, it is characterized in that, determine that described terminal called does not comprise after the network of described calling terminal ownership: send announcement information to described terminal called, point out described terminal called to select to use the home network of described calling terminal.

11, a kind of recognition device of roaming state of mobile terminal is characterized in that, comprising:

The monitoring signaling module is used for monitoring process that calling terminal communicates by letter with the terminal called MAP signaling through the gateway MSC/international signalling transfer point of the home network of calling terminal;

The signalling analysis module is used to analyze the described MAP signaling that monitors, and obtains ownership state CC country code, current location CC country code and the current use network of network number of described terminal called;

Condition judgment module, be used for ownership state CC country code, current location CC country code and current use network of network number according to described terminal called, and the ownership state CC country code of described calling terminal of storage in advance and the network number of home network, determine that described terminal called is whether at the home network of described calling terminal.

12, the recognition device of roaming state of mobile terminal according to claim 11 is characterized in that, described monitoring signaling module specifically comprises:

First monitoring means, be used to monitor the note route request information that the gateway MSC/international signalling transfer point of short message switching center by its home network of the home network of calling terminal sends to the terminal called attaching position register, described note route request information comprises the international integrated services digital network of the travelling carriage of described terminal called number;

Second monitoring means, be used to monitor the note route response message that the gateway MSC/international signalling transfer point of described terminal called attaching position register by the home network of described calling terminal sends to the short message switching center of the home network of described calling terminal, described note route response message comprises the current use network of network of described terminal called node number.

13, the recognition device of roaming state of mobile terminal according to claim 12 is characterized in that, described signalling analysis module specifically comprises:

First analytic unit is used for determining the ownership state CC country code of described terminal called according to the international integrated services digital network of the travelling carriage of described terminal called number;

Second analytic unit is used for according to the current use network of network of described terminal called node number, determines described terminal called current location CC country code and current use network of network number.

14, the recognition device of roaming state of mobile terminal according to claim 11 is characterized in that, described monitoring signaling module specifically comprises:

First monitoring means, be used to monitor the route request information that the gateway MSC/international signalling transfer point of the home network of calling terminal sends to the terminal called attaching position register, described route request information comprises the international integrated services digital network of the travelling carriage of described terminal called number;

Second monitoring means, be used to monitor the route response message of described terminal called attaching position register to gateway MSC/international signalling transfer point transmission of the home network of described calling terminal, described route response message comprises the travelling carriage roaming number of described terminal called.

15, the recognition device of roaming state of mobile terminal according to claim 14 is characterized in that, described signalling analysis module specifically comprises:

First analytic unit is used for determining the ownership state CC country code of described terminal called according to the international integrated services digital network of the travelling carriage of described terminal called number;

Second analytic unit is used for the travelling carriage roaming number according to described terminal called, determines described terminal called current location CC country code and current use network of network number.

According to the recognition device of the described roaming state of mobile terminal of the arbitrary claim of claim 11 to 15, it is characterized in that 16, described condition judgment module comprises:

First judging unit is used for the ownership state CC country code according to described terminal called current location CC country code and terminal called, judges whether described terminal called is the international roaming terminal;

Second judging unit, be used for according to described terminal called is the judged result of international roaming terminal, and the described terminal called current location CC country code and the ownership state CC country code of described calling terminal of storage in advance, judge whether described terminal called is the international roaming terminal that roams into the ownership state of described calling terminal;

The 3rd judging unit, being used for according to described terminal called is the judged result of international roaming terminal that roams into the ownership state of described calling terminal, and the current use network of network of described terminal called number and the network number of the home network of the described calling terminal of storage in advance, determine that described terminal called is whether at the home network of described calling terminal.

17, the recognition device of roaming state of mobile terminal according to claim 11 is characterized in that, also comprises: memory module is used for storing in advance the ownership state CC country code of described calling terminal and the network number of home network.

18, the recognition device of roaming state of mobile terminal according to claim 11 is characterized in that, also comprises: transmitting element, be used for sending announcement information to described terminal called, and point out described terminal called to select to use the home network of described calling terminal.

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