JP2011211463A - Mobile radio communication terminal, and method of controlling the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a mobile wireless communication terminal connectable to a plurality of communication systems to select an optimal communication system and communicate therewith by alternatively interposing the desired communication system.SOLUTION: An association table storage unit stores a table in which a preset condition are associated with an optimal communication system. A ranging determination unit of a control unit determines whether a plurality of communication systems (e.g., a mobile communication network and a radio LAN) are present within a communication enabled range. A communication system selection/connection unit of the control unit then refers to the table stored in the association table storage unit in accordance with the determination results obtained by the ranging determination unit, to determine whether to select and connect a communication system corresponding to the preset condition from among the plurality of communication systems. For example, when it is determined that the plurality of communication systems are within the range, a communication system corresponding to a telephone number is selected.

Description

  The present invention relates to a mobile radio communication terminal that can be connected to a plurality of communication systems, and a control method thereof, and in particular, a mobile radio communication terminal having a function of connecting to both communication systems of a mobile communication network and a wireless LAN, And a control method for the mobile radio communication terminal to switch the communication system.

  With the development of wireless LANs, mobile wireless communication terminals such as mobile phones that can be connected to both mobile communication networks and wireless LAN communication systems have become widespread. In addition, among mobile phones that can be connected to a wireless LAN, mobile phones that are capable of communication connection on two communication systems corresponding to IP (Internet Protocol) telephones are also widespread. When making a telephone communication using such a cellular phone, the telephone number is manually specified from the two communication systems. Alternatively, by setting a communication system to be prioritized, transmission is performed using the communication system that is prioritized unless another communication system is designated.

  In addition, the communication terminal (mobile radio communication terminal) determines a communication network (communication system) that can communicate based on a telephone number, and when there are multiple communication networks that can communicate, it is optimal based on a preset priority. A technique for connecting to a simple communication network is also disclosed (see, for example, Patent Document 1). According to this technique, the communication terminal can perform communication by optimally selecting the mobile communication network and the wireless LAN according to the priority corresponding to the telephone number to be dialed.

  Furthermore, when a communication terminal registers an identification number corresponding to a specific communication network in advance, and the communication terminal inputs a telephone number, the input information corresponding to the telephone number is compared with the identification number, and they match. A technique is also disclosed in which control is performed so that a specific communication network (communication system) is selected and connected when the connection is not established, and access is made to another communication network when there is no match (for example, see Patent Document 2).

JP 2007-243323 A JP 2008-177727 A

  However, in a mobile phone capable of communication connection on two communication systems, that is, a mobile communication network and a wireless LAN, a transmission method in which a priority communication system is set in advance has several problems as follows. . That is, a specific telephone number (for example, a time signal or an emergency destination telephone number) may not be transmitted by one of the two communication systems. That is, when a communication system that cannot make a call to a specific telephone number is selected with priority, it is necessary to manually switch the communication system and perform a call operation. Alternatively, a communication failure may be noticed immediately after performing a call operation without noticing a communication system that cannot make a call.

  In addition, a communication system with a low charge may vary depending on a communication partner to be transmitted. For example, in an IP telephone network, there is a case where a call charge between IP telephones is provided free of charge or cheaply. Similarly, even in a mobile communication network such as a mobile phone, there is a case where a call charge for the mobile phone is provided free of charge within the same mobile communication network. In other words, if a communication system to be prioritized is set in advance, a communication system with a high call charge is selected depending on the communication partner to be transmitted. In this way, a higher call charge is charged to the user side by making a mistake in the selection of the communication system.

  In the technique of Patent Document 1, the mobile phone selects a communication network having a high priority from a plurality of communication networks without determining whether or not the communication network (communication system) to be selected is within a communicable range. Therefore, there may be a loss in selecting a communication network. In other words, if the mobile phone has selected a communication network that exists in an area where communication is impossible (out of the communicable area), the communication network with a higher priority must be selected again. The convenience of the mobile phone is extremely poor.

  Further, even in the technique of Patent Document 2, the mobile phone compares the input information corresponding to the telephone number with the identification number without considering whether or not the specific communication network is within the communication range, and matches. In some cases, a specific communication network is selected. In other words, even when a specific communication network is not communicable, the mobile phone attempts to select a specific communication terminal, so that wasteful energy is consumed and the selection operation of the communication network is troublesome twice. Because of its poor usability.

  The present invention has been made in view of the above-described circumstances, and a mobile radio communication terminal that can be connected to a plurality of communication systems selectively interposes a desired communication system, so that it is optimal for the caller side. A mobile radio communication terminal capable of performing communication in a communication system and a control method for the mobile radio communication terminal are provided. Specifically, a mobile radio communication terminal that can be connected to both communication systems of a mobile communication network and a wireless LAN selects the two communication systems and selectively interposes them, thereby enabling the caller side. A mobile radio communication terminal capable of performing communication with an optimal communication system and a control method for the mobile radio communication terminal are provided.

  In order to achieve the above object, a first configuration of the present invention is a mobile radio communication terminal capable of communication connection with a plurality of communication systems, wherein the plurality of communication systems can communicate with each other. In accordance with the determination result of the area determination unit, the association table storage unit for storing a table in which preset conditions are associated with the optimum communication system, and the determination result of the area determination unit, A communication system selection / connection unit that determines whether or not to selectively connect a communication system associated with a preset condition from the plurality of communication systems with reference to a table stored in the association table storage unit It is characterized by comprising.

  A second configuration of the present invention is a mobile radio communication terminal control method for a mobile radio communication terminal capable of communication connection to a plurality of communication systems to select a desired communication system, which includes a preset condition and A first step of storing a table in which optimum communication systems are associated; a second step of determining whether or not each of the plurality of communication systems is within a communicable area; and A third step of determining whether to selectively connect a communication system associated with a preset condition from the plurality of communication systems while referring to the table according to the determination result in the step of It is characterized by including.

  According to the present invention, it is determined whether or not a mobile wireless communication terminal that can be connected to a plurality of communication systems (for example, a mobile communication network and a wireless LAN) is within a communication range of each communication system. The communication system to be used as the communication path is selected on the condition of the telephone number. Thus, after confirming that the communication system to be selected is within a communicable range, the communication system corresponding to the telephone number is selected, so that the optimum communication system expected by the user can be effectively selected. Communication connection.

It is a block diagram which shows the main components of the mobile phone common to each embodiment of this invention. 1 is an external view of a mobile phone common to each embodiment of the present invention. It is a figure which shows the example of the setting item which selects a communication system in 1st Embodiment of this invention. It is a flowchart which shows operation | movement of the mobile telephone based on 1st Embodiment of this invention. It is a figure which shows the telephone directory screen and communication system setting screen of the mobile radio | wireless communication terminal which concern on 2nd Embodiment of this invention. It is a flowchart which shows operation | movement of the mobile telephone which concerns on 2nd Embodiment of this invention.

  The cellular phone according to the present invention has a function of connecting to a plurality of communication systems (for example, both a mobile communication network and a wireless LAN), and a telephone number input by a key operation or the like is obtained by operating a call key or the like. The present invention relates to a dialing method for a cellular phone that dials based on a dial command. At this time, after determining whether or not the communication system is within a communicable area (that is, in the service area), the telephone system is used as a condition to optimally switch the communication system to be used as a communication path and perform dial transmission. It is characterized by having it be done.

  Hereinafter, several embodiments according to the mobile radio communication terminal of the present invention will be described in detail with reference to the drawings. In the following embodiments, a case where the mobile radio communication terminal is a mobile phone will be described.

[First Embodiment]
FIG. 1 is a block diagram showing main components of a mobile phone common to each embodiment of the present invention. FIG. 2 is an external view of a mobile phone common to the embodiments of the present invention. Furthermore, FIG. 3 is a diagram illustrating an example of setting items for selecting a communication system in the first embodiment of the present invention. FIG. 4 is a flowchart showing the operation of the mobile phone according to the first embodiment of the present invention.

  Hereinafter, in the first embodiment, a control method in which a mobile phone automatically selects a desired communication system will be described with reference to FIGS. 1 to 4. In the following example, the mobile communication network is described as a W-CDMA (Wideband Code Division Multiple Access) network.

  As shown in FIGS. 1 and 2, the mobile phone 100 includes a W-CDMA antenna 1, a W-CDMA wireless unit 2, a wireless LAN antenna 3, a wireless LAN wireless unit 4, a control unit 5, and a storage unit. A memory 6, a key operation unit 7, a microphone 8, a receiver 9 as an output unit, and a display unit 10 are provided. Note that the W-CDMA antenna 1, the W-CDMA wireless unit 2, the wireless LAN antenna 3, and the wireless LAN wireless unit 4 are used for realizing a call using the mobile phone 100, transmission / reception of an e-mail, and the like. A wireless communication unit.

  In addition, the control unit 5 includes a range determination unit 5a that determines whether or not a plurality of communication systems exist within a communicable range, and a plurality of communication systems according to the determination result of the range determination unit 5a. And a communication system selection / connection unit 5b for selecting and connecting a communication system associated with a preset condition (for example, telephone number). Furthermore, the memory 6 includes an association table storage unit 6a that stores a table in which preset conditions (for example, telephone numbers) and optimum communication systems are associated with each other.

  The control unit 5 having the above-described functions is configured by a CPU or the like, is connected to each element of the mobile phone 100, and controls the entire mobile phone 100. For example, the control unit 5 stores the phone book setting input by the key operation unit 7 in the memory 6 or compares the phone book setting stored in the memory 6 with the dialed number to be transmitted to obtain the setting contents. In response to this, various controls such as switching the communication system and displaying the setting screen of the microphone 8 and the receiver 9 and the telephone directory for making a call on the display unit 10 are performed.

  The memory 6 is configured by a RAM (Random Access Memory) or the like, and stores a program for operating the mobile phone, user data, setting information for switching the communication system, operating conditions of other functions, and the like. The key operation unit 7 is an input circuit that receives inputs from various keys including numeric keys, direction keys, and special keys.

  The microphone 8 and the receiver 9 receive voice signals and ringing tone signals transmitted and received using the W-CDMA antenna 1 and the W-CDMA radio unit 2, and the wireless LAN antenna 3 and the wireless LAN radio unit 4. An element that inputs and outputs sound.

  The display unit 10 is configured by a liquid crystal display device, an organic EL (Electroluminescence) display device, and the like, and displays various information of the mobile phone 100 and also displays a menu screen, a setting screen, a standby screen, and the like.

  FIG. 1 shows a basic configuration of the mobile phone according to the present embodiment. In addition to the above basic configuration, various functions such as a digital camera function, a videophone function, a TV broadcast receiving function, and a non-contact IC card function are provided. You may provide the various function parts for implement | achieving.

  2 is an external view of the surface of an example of the cellular phone 100 shown in FIG. 1, in which a key operation unit 7 and a display unit 10 are disposed on the surface, and a microphone 8 and a receiver are disposed inside the surface side. 9 is built-in. Note that the mobile phone 100 is not limited to an integrated mobile phone configured with a single casing as shown in FIG. 2, but is a slide type in which two casings are slidably supported and two casings are hinge portions. The mobile phone can be in any form such as a foldable type that is supported so as to be opened and closed.

  Next, the operation of the mobile phone 100 will be described along the flow of the flowchart of FIG. 4 with reference to the table of FIG. Initially, with reference to FIG. 3, the setting item of the switching function of the communication system provided in the current mobile phone 100 will be described. In the table of FIG. "Is a code number of the communication system, and" condition "is a condition for selecting a communication system (here, a telephone number). Further, “communication system” is a type of communication system that can be switched in response to a condition (phone number), and “state” is information indicating whether or not the set condition (phone number) is applied to the communication system. It is. That is. The table shown in FIG. 3 stores information for selecting a communication system using the telephone number of the mobile phone 100.

  Next, the operation of the mobile phone 100 according to the first embodiment will be described with reference to the flowchart of FIG. First, when dialing is performed with the mobile phone 100 (step S1), the area determination unit 5a of the control unit 5 can communicate with both the two communication systems of the mobile communication network (that is, W-CDMA) and the wireless LAN. It is determined whether or not it is within a range (step S2).

  Here, when the area determination unit 5a of the control unit 5 determines that the two communication systems are within an area within which communication is possible (YES in step S2), the communication system selection / connection unit 5b of the control unit 5 It is determined whether the telephone number to be dialed starts with “090” corresponding to the first communication system (step S3). If it is determined that the telephone number starts with “090” (YES in step S3), the call is transmitted by W-CDMA, which is the first communication system (step S4).

  If the communication system selection / connection unit 5b of the control unit 5 determines that the telephone number does not start with “090” in the determination process of step S3 (NO in step S3), the communication system selection of the control unit 5 is selected. The connection unit 5b determines whether or not the telephone number to be dialed starts with “050” corresponding to the second communication system (step S5). If it is determined that the telephone number starts with “050” (YES in step S5), the telephone number is transmitted via the wireless LAN as the second communication system (step S6).

  On the other hand, if it is determined in step S5 that the telephone number does not start with “050” (NO in step S5), the communication is performed by a communication system existing within a communicable area (step S8).

  Further, in the determination process of step S2, if the area determination unit 5a of the control unit 5 determines that the two communication systems are not in an area within which communication is possible (NO in step S2), only one communication system communicates. It is determined whether or not it is within a possible range (step S7). Here, when it is determined that only one communication system is within a communicable range (YES in step S7), the communication system selection / connection unit 5b of the control unit 5 depends on the communication system existing within the communicable range. Make a call (step S8). If it is determined in step S7 that one communication system does not exist within the communicable range (NO in step S7), the communication system selection process is terminated (END).

  According to the mobile phone of the present invention, after confirming that the communication system to be selected is within a communicable range, according to the telephone number to be dialed, for example, a telephone number starting with “090” is applicable. A communication system that connects based on a pre-registered telephone number, such as selecting a mobile communication network and selecting an IP telephone communication network using a wireless LAN if the telephone number starts with "050" (Communication network) can be determined.

  Therefore, the mobile phone according to the present invention can select and connect to the communication system expected by the user. Further, in the mobile phone according to the present invention, it is an indispensable condition that the determination of the communication system to be selected at the time of outgoing call is made based on the wireless local area communication network of the mobile radio communication terminal and the location state in the mobile communication network. It is said. For example, when the mobile wireless communication terminal is located outside the range of the wireless local area communication network, communication connection is established via the mobile communication network. That is, the communication system to be used is automatically switched depending on the destination telephone number to be transmitted after confirming the location state of the communication system to be selected.

  In this way, by automatically switching the communication system to be used depending on the telephone number to be dialed, if the communication system that cannot dial is preferentially selected, the user may be forced to switch manually. , It is possible to eliminate the inconvenience of making a call without noticing and failing immediately after the call operation. Further, it is possible to avoid a situation in which a higher call charge is charged to the user due to an erroneous selection of the communication system, and to perform a call by selecting a communication system with a lower charge.

[Second Embodiment]
Next, a mobile radio communication terminal according to the second embodiment of the present invention is described. In the first embodiment described above, the condition for selecting a communication system is set using the first three digits of the telephone number. In the second embodiment, the condition for selecting a communication system in detail for each telephone number is set. A method of setting will be described.

  FIG. 5 is a diagram showing a telephone directory screen and a communication system setting screen of the mobile radio communication terminal according to the second embodiment of the present invention. As shown in FIG. 5, the telephone directory screen 51 stores a telephone number and information of a communication system corresponding to the telephone number in association with each other. The communication system setting screen 52 displays a screen for setting a communication system corresponding to the telephone number to be called. Further, when the telephone call with the telephone number is terminated, the initial telephone directory screen 51 in which each telephone number is associated with the communication system is displayed again.

  FIG. 6 is a flowchart showing the operation of the mobile phone according to the second embodiment of the present invention. Accordingly, the operation of the mobile phone according to the second embodiment will be described with reference to the flowchart of FIG. First, dialing is performed by the mobile phone 100 (step S11). Next, the area determination unit 5a of the control unit 5 determines whether or not the two communication systems of the mobile communication network (that is, W-CDMA) and the wireless LAN are within communication (step S12). ).

  Here, when the area determination unit 5a of the control unit 5 determines that the two communication systems are within an area within which communication is possible (YES in step S12), the communication system selection / connection unit 5b of the control unit 5 The telephone number to be dialed is determined whether or not the communication system is set in the telephone directory (step S13). If it is determined that a communication system is set for the telephone number to be dialed (YES in step S13), the communication system selection / connection unit 5b of the control unit 5 is set in the telephone directory. The communication system corresponding to the telephone number is selected to make a call (step S14).

  If it is determined in the determination process in step S13 that no communication system is set for the telephone number to be dialed (NO in step S13), the communication system selection / connection unit 5b of the control unit 5 The communication system having the highest priority is selected according to the priority order set in advance and is transmitted (step S15).

  Further, in the determination process of step S12, when the area determination unit 5a of the control unit 5 determines that the two communication systems are not in an area within which communication is possible (NO in step S12), only one communication system communicates. It is determined whether or not it is within a possible range (step S16). Here, when it is determined that only one communication system is within a communicable range (YES in step S16), the communication system selection / connection unit 5b of the control unit 5 depends on the communication system existing within the communicable range. A call is made (step S17). If it is determined in step S16 that one communication system does not exist within the communicable range (NO in step S16), the communication system selection process is terminated as it is (END).

[Third Embodiment]
Next, a mobile radio communication terminal according to the third embodiment of the present invention is described. In the third embodiment, a method of selecting a communication system based on a telephone number by combining the first embodiment and the second embodiment will be described. That is, when the telephone number to be dialed is not set in the communication system in the telephone directory, it is determined whether or not the telephone number starts with “090” and “050”. Switch.

  Although the embodiments of the mobile radio communication terminal according to the present invention have been described in detail with reference to the drawings, the specific configuration of the present invention is not limited to these embodiments, and the gist of the present invention. Even if there is a design change or the like within a range that does not deviate from the above, they are included in the present invention.

  INDUSTRIAL APPLICABILITY The present invention can be effectively used for a mobile terminal having a communication function for a plurality of communication systems, and a communication system switching function in those mobile terminals. Specifically, the present invention can be effectively used for portable terminals having a communication function for both wireless LAN and mobile communication network communication systems, and a switching function of the communication system in these portable terminals.

DESCRIPTION OF SYMBOLS 1 W-CDMA antenna 2 W-CDMA radio part 3 Wireless LAN antenna 4 Wireless LAN radio part 5 Control part 5a Area determination part 5b Communication system selection / connection part 6 Memory 6a Correlation table storage part 7 Key operation part 8 microphone 9 receiver 10 display unit 100 mobile phone

Claims (8)

A mobile radio communication terminal capable of communication connection to a plurality of communication systems,
A plurality of communication systems, a range determination unit that determines whether each exists in a communicable range,
An association table storage unit for storing a table in which preset conditions and an optimum communication system are associated;
Whether to selectively connect a communication system associated with a preset condition from the plurality of communication systems with reference to a table stored in the association table storage unit according to a determination result of the area determination unit A mobile radio communication terminal comprising: a communication system selection / connection unit for determining whether or not. The plurality of communication systems are a mobile communication network and a wireless LAN, and the preset condition is a telephone number to be transmitted,
When the area determination unit determines that the mobile communication network and the wireless LAN are each within a communicable area,
The communication system selection / connection unit refers to a table stored in the association table storage unit and is associated with a telephone number set in advance from the two communication systems of the mobile communication network and the wireless LAN. 2. The mobile radio communication terminal according to claim 1, wherein the communication system is selectively connected. The plurality of communication systems are a mobile communication network and a wireless LAN, and the preset condition is a telephone number recorded in a telephone directory,
When the area determination unit determines that the mobile communication network and the wireless LAN are each within a communicable area,
The communication system selection / connection unit refers to a table stored in the association table storage unit, and from the two communication systems of the mobile communication network and the wireless LAN, telephone numbers recorded in the telephone directory The mobile radio communication terminal according to claim 1, wherein a communication system associated with is selectively connected.   The communication system selection / connection unit selectively connects a communication system with the highest priority according to a preset priority when a telephone number to be transmitted is not recorded in the telephone directory. Item 4. The mobile radio communication terminal according to Item 3. A mobile radio communication terminal control method for a mobile radio communication terminal capable of communication connection to a plurality of communication systems to select a desired communication system,
A first step of storing a table in which preset conditions and optimum communication systems are associated;
A second step of determining whether or not each of the plurality of communication systems exists within a communicable area;
Determining whether to selectively connect a communication system associated with a preset condition from the plurality of communication systems while referring to the table according to a determination result in the second step; And a method for controlling a mobile radio communication terminal. The plurality of communication systems are a mobile communication network and a wireless LAN, and the preset condition is a telephone number to be transmitted,
In the second step, when it is determined that the mobile communication network and the wireless LAN are each within a communicable area,
In the third step, referring to the table, a communication system associated with a preset telephone number is selectively connected from the two communication systems of the mobile communication network and the wireless LAN. A method for controlling a mobile radio communication terminal according to claim 5. The plurality of communication systems are a mobile communication network and a wireless LAN, and the preset condition is a telephone number recorded in a telephone directory,
In the second step, when it is determined that the mobile communication network and the wireless LAN are each within a communicable area,
In the third step, referring to the table, the communication system associated with the telephone number recorded in the telephone directory is selectively connected from the two communication systems of the mobile communication network and the wireless LAN. The method of controlling a mobile radio communication terminal according to claim 5.   8. In the third step, when a telephone number to be transmitted is not recorded in the telephone directory, a communication system with the highest priority is selectively connected according to a preset priority. A method for controlling a mobile radio communication terminal according to claim 1.

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