KR100707441B1 - Network Converting Mobile Communication System and the Converting Method for the Same - Google Patents

Abstract

The present invention relates to a communication network switchable mobile communication system and a method for switching the communication network, and checks whether a communication network having a higher priority than a currently roaming communication network exists when a user of the mobile communication terminal wants to use a charging service. And a second step in which roaming with the currently connected communication network is released and the mobile communication terminal roams to a communication network having a high priority when there is a communication network having a higher priority than the result of the checking of the first step. And a third step in which the charging service of the mobile communication terminal is performed through the roaming communication network in the second step, so that the mobile communication terminal performs the charging service through a communication network provided by an operator or using the same communication method. To reduce the cost incurred during use It is effective.

Mobile terminal, 2G, 3G, PLMN, communication network

Description

Network Converting Mobile Communication System and Network Converting Method {Network Converting Mobile Communication System and the Converting Method for the Same}

1 is a diagram showing a first embodiment of a communication network switchable mobile communication system according to the present invention;

2 is a diagram illustrating a second embodiment of a communication network switchable mobile communication system according to the present invention;

3 is a flow diagram illustrating a method of operating a mobile communication terminal when the power is turned on in the mobile communication terminals of FIGS.

4 is a flowchart illustrating a method of operating a mobile communication terminal when a charging service is to be executed by the mobile communication terminals of FIGS.

<Explanation of symbols on main parts of the drawings>

10: Mobile communication terminal of Embodiment 1 11: System information storage unit

12: Communication network information search unit 13: microcomputer

20: mobile communication terminal of Embodiment 2 21: communication network information search unit

22: priority information storage unit 23: microcomputer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication network switchable mobile communication system and a method for converting the communication network. In particular, the present invention relates to a mobile communication system in which a synchronous 2nd generation mobile communication network (2G / 2.5G network) and an asynchronous 3rd generation mobile communication network (3G network) are mixed. The present invention relates to a communication network switchable mobile communication system and a method for converting a communication network to enable a terminal to perform a charging service through a communication network provided by a mobile communication service provider.

Recently, with the rapid increase in the use of services using the 3G method, which is an asynchronous 3G communication method, providers providing 3G mobile communication services are increasing the construction of 3G networks to expand the 3G business. However, the 3G network construction that can cover the 3G services requested by the mobile terminal users is a costly and time-consuming problem, many mobile communication terminals using the 3G method also uses the existing 2G network.

However, in this case, the 3G service provider uses the 2G network of a third-party company, and thus, the user needs to pay the service provider for the use of the network.

In addition, the mobile communication terminal is to operate the HPLMN timer to find a Home Public Land Mobile Network (HPLMN), there is a problem that does not operate properly because the conditions are not matched when using a different type of network.

If the network information stored in the list of the Universal Subscriber Idendity Module (USIM) of the mobile terminal is given priority information, the HPLMN timer continuously operates to find another network, but the PLMN is the same Mobile Country Code (MCC). Since the MCC periodically searches for a network that is not the same, only a power consumption occurs in the mobile communication terminal.

The present invention has been made to solve the above problems of the prior art, the object of the billing service through a communication network established by the operator of the mobile communication service to the mobile communication terminal subscribed to the communication network mixed synchronous and asynchronous network The present invention provides a communication network switchable mobile communication system and a method for switching the communication network.

According to a first aspect of a communication network switchable mobile communication system according to the present invention for solving the above problems, it is possible to operate in one or more communication networks having a different communication method, the system information storage for storing information about the subscribed mobile communication system And the mobile station, if the communication method of the currently roaming first communication network is different from the communication method of the subscribed mobile communication system, as a result of referring to the information stored in the system information storage unit when the user requests to execute the charging service. And a mobile communication terminal that releases roaming to the first communication network and registers with the second communication network to perform a charging service if the second communication network using the same communication method as the communication system is accessible. do.

In addition, according to the second aspect of the communication network switchable mobile communication system according to the present invention, at least one of a different priority is a communication network, and if the user wants to use a charging service, whether the currently roaming communication network is a high priority communication network. It is characterized in that it comprises a mobile communication terminal to check and, if there is a communication network with a prioritized priority to register in the communication network to perform the charging service.

On the other hand, the communication network switching method of the mobile communication system according to the present invention, the communication method of the mobile communication system subscribed to the communication method of the first communication network currently roaming the mobile communication terminal when the mobile communication terminal user requests to execute the charging service; Checking whether the communication method is the same, and if the communication method is not the same, if it is possible to connect to a second communication network using the same communication method as the subscribed mobile communication system, release roaming with the first communication network, and Registering with the second communication network, and performing the charging service through the second communication network.

In addition, the communication network switching method of the mobile communication system according to the present invention is whether the mobile communication terminal user, the head office provider network established by the operator of the mobile communication service subscribed to the currently roaming communication network when the mobile terminal is requested to execute the charging service; Confirming, if the currently roamed communication network is not the head office company network, if it is accessible to the head office company network, releasing roaming with the currently roamed communication network, and registering with the head office company network; and The charging service is performed through the head office network.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a first embodiment of a communication network switchable mobile communication system according to the present invention, wherein the mobile communication terminal 10 is located at a location under the jurisdiction of a 2G / 2.5G network which is a synchronous communication network and a 3G network which is an asynchronous communication network. do. At this time, when the user intends to use the charging service using the mobile communication terminal, it is checked whether the communication method of the roaming communication network and the communication method of the roaming communication system are the same.

That is, the mobile communication terminal 10, as shown, the system information storage unit 11, which stores information on the communication method of the system to which the mobile communication terminal is currently subscribed, and the communication currently being used in the roaming communication network Comparing the communication method stored in the system information storage unit 11 and the communication method retrieved from the network information retrieval unit 12 and the communication method retrieved from the network information retrieval unit 12 for calculating / retrieving information on the method are the same, It consists of a microcomputer 13 to perform the charging service.

Recently released mobile communication terminal 10 is generally configured to support both 2G / 2.5G and 3G communication method, the mobile communication terminal 10 is 2G / 2.5G and 3G method in the product launch process or AS process Which method is supported is preset. The system information storage unit 11 is configured as a memory in which a setter of a communication method of the mobile communication terminal 10 can separately store information regarding a communication method, or whenever the communication method is changed, the communication method is automatically searched ( It can be configured as a memory stored by the microcomputer).

In the present embodiment, it is assumed that the mobile communication terminal 10 is set to use the 3G communication method. At this time, the mobile communication terminal 10 is located in an area in which both 2G / 2.5G networks and 3G networks have jurisdiction.

First, location registration must be performed in order for the mobile communication terminal 10 to provide a mobile communication service. Location registration means that the mobile communication terminal frequently moves information to the mobile switching center that manages the network such as its location and status. It means the operation to increase the reliability of the communication terminal incoming call. If the location registration is not well done from time to time, the mobile switching center in charge of the network does not know the location of the mobile communication terminal to find and instructs thousands of wireless base stations nationwide to find the mobile communication terminal at the same time.

In the present embodiment, it is assumed that the mobile communication terminal 10 registers a location through a mobile switching center that manages a 2G / 2.5G network. In other words, it is roaming on a 2G / 2.5G network.

In this state, when the user makes a phone call, sends a text message, or uses a billing service such as a wireless Internet service, the communication network information search unit 12 of the communication network where the mobile communication terminal 10 is currently roaming. Check the communication method.

As a result, it can be seen that the mobile communication terminal 10 is roaming in the 2G / 2.5G network. In this case, the microcomputer 13 checks whether there is a separate communication network for jurisdiction of the area where the mobile communication terminal 10 is located, and other than the communication network where the mobile communication terminal roams through the communication network information retrieval unit 12. Check the communication method of the network.

In the present embodiment, under the control of the microcomputer 13, the communication network information search unit 12 has a 3G network in addition to the 2G / 2.5G network in which the mobile communication terminal is roaming in the area where the mobile communication terminal 10 is located. Ensure that you have jurisdiction. Accordingly, as a result of the check, the microcomputer 13 has jurisdiction over a communication network (3G network) supporting the same communication method in an area where the mobile communication terminal 10 is located, and ② the current mobile communication terminal 10 is 2G / 2.5G. Roamed in the network, ③ Since the operator of the mobile communication terminal wants to use the charging service, release the 2G / 2.5G network and roams in the 3G network. Thereafter, the charging service through the mobile communication terminal 10 is performed.

However, even if the currently connected network is a 2G / 2.5G network, if there is no 3G network that governs the area where the mobile communication terminal 10 is located, the network information retrieval unit 12 inevitably ends the 2G / 2.5G network. The billing service will be performed.

Hereinafter, a second embodiment of a communication network switchable mobile communication terminal system according to the present invention will be described.

First, the mobile communication terminal 20 of the second embodiment includes a communication network information retrieval unit 21 for retrieving information about the priority of the communication network, etc. which has jurisdiction over the area in which the mobile communication terminal is located, and the user intends to execute the charging service. In this case, the priority information storage unit 22 stores information on the priority of the communication network to be roamed, and the communication network searched by the communication network information search unit 21 and the priority of the communication network stored in the priority information storage unit 22. It consists of a microcomputer (23) to determine which communication service to run through the communication network in accordance with the priority of.

At this time, the priority can be set by the communication method (the higher the priority is the same as the communication method set in the mobile communication terminal and the communication method set in the mobile communication terminal) as in the first embodiment, but in the present embodiment Is set according to.

That is, a communication network (hereinafter referred to as a head office provider network) established by a mobile communication service provider to which the mobile communication terminal 20 is currently subscribed, and a communication network established by another mobile communication service provider (hereinafter referred to as a third party provider network) are illustrated in FIG. 2. Assume that they coexist as shown in FIG. In this case, when the mobile communication terminal 20 executes the billing service through the network of the third party, the mobile communication service provider (the company) to which the mobile communication terminal is subscribed must pay the network fee to the third party.

Therefore, even when the mobile communication terminal 20 is roaming in the network of the third party, there is a network of headquarters that manages the area where the mobile communication terminal is located. ② The user wants to execute the billing service through the mobile communication terminal. In this case, the microcomputer 23 of the mobile communication terminal 20 releases the currently roaming third party network and roams the head office network so that the billing service is performed.

At this time, the communication network information retrieval unit 21 can distinguish the third party company network and the head office company network through various information, and can distinguish the communication network through MNC / MMC information of the communication network. The priority information storage unit 22 stores information about priority according to MNC / MMC information for each communication network.

Therefore, the microcomputer 23 is based on information related to the priority of the communication network retrieved by the communication network information retrieval unit 21 (MNC / MMC information of the communication network) and the information stored in the priority information storage unit 22. It hides the priority of the network and the head office network.

At this time, the priority of the headquarters network is set higher than the priority of the network of other companies, so even if the mobile communication terminal 20 is roaming in the network of other companies, the mobile communication terminal 20 is executed when the billing service is executed. Roams in the head office network.

Meanwhile, information on a communication network preferred by the mobile communication terminal, that is, a high-priority communication network, is stored in advance when the mobile communication terminal is manufactured or stored in a USIM / SIM card. Therefore, the information on the priority of the communication network can be changed as necessary, and can be updated automatically or manually through the wired or wireless communication network.

3 is a view illustrating a flow of a method of operating a mobile communication terminal when the mobile communication terminal is turned on in the communication network switchable mobile communication system according to the present invention, and FIG. 4 is a user of the mobile communication terminal turned on. If you want to use the billing service is a diagram showing the flow of the operation method.

First, FIG. 3 will be described.

When the power of the mobile communication terminal is turned on (S1), the communication network information (that is, the communication network information where the mobile communication terminal roams previously) existing in the mobile communication terminal is initialized and at the same time the system information storage unit 11 or priority. Information stored in the ranking information storage unit 22 is loaded (S2).

Thereafter, the mobile communication terminal is loaded by default into a communication network that controls the location where the mobile communication terminal exists (S3).

Thereafter, the mobile communication terminal of the first embodiment checks whether the currently loaded communication network uses the same communication method as the communication method set in the mobile communication terminal, and the mobile communication terminal of the second embodiment determines whether the currently loaded communication network is the head office operator network. Check the priority (S4).

In the case of the first embodiment, if it is confirmed that the loaded communication network uses the same communication method as the mobile communication terminal, the operator network flag value is set to '1' (S5), and it is determined that the same communication method is not used. The drawing flag value is set to '0' (S6).

In this state, when the user wants to receive the charging service, the operation method of the mobile communication terminal is as shown in FIG. 4.

That is, when the user attempts to make a call, for example, to make a call (S7), as in the fourth step, the first embodiment checks whether the currently roamed network uses the same network as the mobile communication terminal (S8). In the case of the second embodiment it is checked whether the currently roamed network has a high priority, that is, the head office network (S8).

In the eighth step S8, if the communication method is the same in the first embodiment, and in the second embodiment, the billing service is executed in the case of the main office network (S9).

However, if not, the mobile communication terminal checks whether another communication network having jurisdiction over the area exists (S10).

Thereafter, the mobile communication terminal of the first embodiment checks whether the communication network searched in the tenth step S10 uses the same communication method (S11). If the same communication method is not used, the mobile communication terminal performs the charging service as it is through the currently connected communication network (S9). However, when the same communication method is used, the currently roamed communication network is released and roams to the communication network confirmed in the eleventh step S11 (S12). In addition, the billing service is performed through the roaming communication network in the twelfth step S12 (S9).

On the other hand, the mobile communication terminal of the second embodiment checks whether the communication network retrieved in the tenth step (S10) is the head office operator network (S11). If it is not the head office network, the mobile terminal performs the charging service as it is through the currently connected communication network (S9). However, in the case of the head office operator network, the currently roamed communication network (other operator network) is released and roams to the communication network identified in step 11 (S12). In addition, the billing service is performed through the roaming communication network in the twelfth step S12 (S9).

The communication network switchable mobile communication system and the method for switching the communication network of the present invention configured as described above have a communication network having a higher priority than the communication network where the mobile communication terminal currently roams when the user of the mobile communication terminal wants to use the charging service. A first step of checking whether the first communication step and a communication network having a higher priority than the first step result in roaming with the currently connected communication network and the mobile communication terminal roaming to a communication network having a high priority. And a third step in which the charging service of the mobile communication terminal is performed through the roaming communication network in the second step, so that the mobile communication terminal performs the charging service through the communication network provided by the operator or using the same communication method. This can reduce the costs incurred in using the billing service. It is effective.

Claims (11)

A communication network switchable mobile communication system operable in one or more communication networks having different communication methods, A system information storage unit for storing information about the subscribed mobile communication system; And When the user requests to execute the charging service, when the communication method of the currently roaming first communication network is different from the communication method of the subscribed mobile communication system as a result of referring to the information stored in the system information storage unit, And a mobile communication terminal that releases roaming to the first communication network and registers with the second communication network to perform a charging service if the second communication network using the same communication method is accessible. Switchable mobile communication system. The method of claim 1, And the system information storage unit is provided in the mobile communication terminal. The method of claim 1, Any one of the first and second communication network is a 2G / 2.5G network is a synchronous communication network, the other is a communication network switchable mobile communication system, characterized in that the 3G network. The method of claim 1, Any one of the first and second communication networks is a communication network established by the operator of the subscribed mobile communication service, the other is a communication network established by the operator of the other mobile communication service. delete delete When the mobile communication terminal user requests to execute a charging service, confirming whether the communication method of the roaming first communication network is the same as the communication method of the subscribed mobile communication system; If the communication method is not the same as the result of the check, if it is possible to connect to the second communication network using the same communication method as the subscribed mobile communication system, the roaming with the first communication network is canceled and registered in the second communication network. step; And And performing a charging service through the second communication network. When the mobile communication terminal user requests to execute a charging service, confirming whether the mobile communication terminal is a main office network established by a provider of a mobile communication service to which a roaming communication network is subscribed; If it is determined that the currently roamed communication network is not the main office company network, if it is accessible to the main office company network, releasing roaming with the currently roamed communication network and registering it in the main office company network; And And performing a billing service through the head office network. The method of claim 8, And storing information used to identify whether the currently roamed communication network is the head office business network. The method of claim 9, And the information is stored in a USIM / SIM card connected to the mobile communication terminal. The method of claim 9, Updating the information through a wireless / wired communication; Communication method of the mobile communication system further comprising.

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