JP2007158905A - Mobile terminal device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To utilize an inexpensive and high-speed in-house wireless LAN which perform data communication, similar to mail transmission/reception by means of a mobile phone. <P>SOLUTION: A mobile terminal is provided with a data storage means for storing data, a second radio communication means, a switching means for performing switching between a first radio communication means and the second radio communication means, and a transmission means for transmitting data stored in the data storage means by using the second radio communication means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mobile terminal device.

  In recent years, portable personal computers and PDAs equipped with a wireless communication function have been widely used. Such a wireless mobile terminal can perform wireless communication with a wireless base station as an access point, and can access a network such as a LAN (Local Area Network) or a WAN (Wide Area Network) through the wireless base station. It is. A LAN that uses such a wireless communication line as a part of the network is called a wireless LAN. These communication networks have the advantage of not only reducing the labor and cost of laying communication cables, but also increasing the freedom of movement of people using wireless mobile terminals, compared to conventional communication networks using only wired communication lines. is there.

For example, Patent Document 1 discloses a wireless communication system that easily realizes wireless communication prioritized according to individual users for each wireless communication performed between a wireless base station and a plurality of wireless mobile terminals. And a wireless communication method thereof.
JP 2005-151359 A

  In recent years, mobile phones have become increasingly sophisticated. Applications include email and Internet access. The procedure for sending and receiving mail is as follows. First, an SMTP (Simple Mail Transfer Protocol) server is accessed, and a mail header (information indicating attributes such as a destination attached to an E-mail message), a message, and the like are transmitted. The SMTP server sends a mail header to a destination POP (Point of Production) server and checks whether the destination is correct. If there is no error in the mail header, the SMTP server sends the mail text to the destination POP server. The POP server stores the received mail in the user's mailbox. A mail reception request comes from the user to the POP server. The POP server sends mail stored in the user's mailbox. When sending and receiving e-mail with a mobile phone, a charge proportional to the amount of data called a packet fee is charged.

  On the other hand, broadband access is commonly used for Internet access by personal computers. The advantages of this method are that the communication speed is fast, the flat rate system, constant connection, and the charge is low. Furthermore, when constructing a LAN in a home, wireless connection is generalized instead of conventional wired connection. Therefore, an object of the present invention is to use an inexpensive and high-speed home wireless LAN when performing data communication such as mail transmission / reception by a mobile phone.

  In order to solve the above problems, a portable terminal according to the present invention includes a data storage means for storing data, a second wireless communication means, a first wireless communication means, and a switching means for switching between the second communication means and a second wireless communication means. There is provided transmission means for transmitting data stored in the data storage means using the wireless communication means.

The portable terminal according to the present invention further includes a data urgency level storage means for storing an urgency level for each data stored in the data storage means, and a case where the urgency level of the data stored in the data urgency level storage means is high. And transmitting data from the first wireless communication means.
The portable terminal according to the present invention further includes a data urgency level storage means for storing an urgency level for each data stored in the data storage means, and a case where the urgency level of the data stored in the data urgency level storage means is low And transmitting data from the second wireless communication means.

  The portable terminal according to the present invention is a portable terminal that performs voice communication and data communication by the first wireless communication means, and is a data storage means for storing the first data and a data storage means for storing the second data. The data is received by the switching means for switching between the first wireless communication means and the second communication means and the second wireless communication means, and the data is stored in the second data storage means.

According to the present invention, when the mobile terminal establishes the second wireless communication, low-cost and high-speed communication can be performed by performing transmission / reception.
Further, according to the present invention, instead of the first wireless communication means that requires a low communication fee at a low speed, it can be transmitted by the second wireless communication means at a high speed and a low communication charge, and highly urgent data covers a wide area. Can be transmitted by the first wireless communication means, and the low urgency data can be transmitted by the second wireless communication means at a high speed and the communication charge is low. It can be received by cheap second wireless communication means.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Hereinafter, Example 1 according to the present invention will be described with reference to FIG.
First, the mobile terminal 21 is connected to a mail server 19 or a Web server 20 connected to the Internet network 18 via the mobile phone network base station 15 or the wireless communication access point 16 to perform various data communications bidirectionally. It is possible. Communication performed via the mobile phone network base station 15 is once connected via the mobile phone network 17 to the Internet network 18 via a network conversion device called a gateway (not shown).
As a feature of communication via the mobile phone network base station 15, although it is generally relatively low speed, the range in which the mobile terminal can be used is a wide area regardless of whether it is indoors or outdoors. Communication performed via the wireless communication access point 16 is called a wireless LAN, and a standard conforming to IEEE (Institute of Electrical and Electronic Engineers) 802.11b / g / a is generally used. There is a technique using frequency hopping called (wireless communication technology for portable information devices), and the present invention does not matter. As a feature of the communication via the wireless communication access point 16, it is faster than the communication via the mobile phone network base station 15 described above, but the range in which the mobile terminal can be used is narrow.

Next, an outline of functions of the mobile terminal 21 according to the first embodiment of the present invention will be described.
As a first function of the portable terminal 21, there is a voice call function. The voice input from the voice input unit 8 is subjected to processing such as sampling and quantization by the voice control unit 6. The call control unit 5 uses the control channel to assign a call channel necessary for a voice call or vice versa. Normally, although not shown, when it is detected that the operator has pressed the off-hook button on the operation panel, the cellular phone network / data communication switching unit 2 switches the communication path to the cellular phone network transmitting / receiving unit 1. The cellular phone network transmission / reception unit 1 communicates with the cellular phone network base station 15 and transmits an audio signal. The transmitted audio signal reaches the other party's mobile terminal via the mobile phone network 17.
On the other hand, the audio signal transmitted from the other mobile terminal is received by the mobile phone network transmitting / receiving unit 1 from the mobile phone network base station 15 via the mobile phone network 17. During a voice call, the mobile phone network / data communication network switching unit 2 forms a communication path with the mobile phone network transmission / reception unit 1 as a communication path, and the received voice signal is sent to the call control unit 5 through this communication path. It is done. From here, it is demodulated and converted into an audio signal that can be output to a speaker or the like by the audio control unit 6, and then output by the audio output unit 7.

  As a second function of the portable terminal 21, there is a mail function. The mail function is roughly divided into four processes: mail creation, mail transmission, mail reception, and mail browsing. The mail creation is a process of creating a mail in accordance with the operator's key input and storing the mail in the mail storage unit 11. The mail transmission is a process of transmitting the mail in the mail storage unit according to the operator's key input. The reception of mail is a process of receiving mail stored in the mail server 19 and storing it in the mail storage unit 11 in accordance with an operator's key input. The mail browsing is a process of displaying the mail in the mail storage unit 11 on a display device such as a liquid crystal screen (not shown) according to the key input by the operator.

  The sending of mail will be described in detail. The mail is transmitted from the mail storage unit 11 by the mail control unit 9 and at the same time, a control signal for sending the mail is sent to the mobile phone network / data communication network switching unit 2. The cellular phone network / data communication network switching unit 2 switches the communication path to the cellular phone network transmitting / receiving unit 1 side to form a communication path. The mail is transmitted from the cellular phone network transmitting / receiving unit 1 and transmitted to the other party via the cellular phone network base station 15, the cellular phone network 17, and the Internet network 18.

  However, as described above, communication via the mobile phone network 17 has a low communication speed and a high communication fee. In order to improve this, information indicating the urgency level of the mail is added when creating the mail, and this is stored in the mail urgency level information storage unit 10. At the time of mail transmission, the urgency corresponding to the mail stored in the mail storage unit 11 is read from the mail urgent level information storage unit 10, and if the urgency is not high, the mail is transmitted according to the following procedure.

  First, the radio field intensity measuring unit 4 measures the radio field intensity of the wireless communication access point 16 at regular intervals. This signal is also sent to the mail control unit 9 to read out the mail from the mail storage unit 11, and the mobile phone network / data communication network switching unit 2 switches the communication path to the wireless communication transmitting / receiving unit 3 side to form a communication path. To do. The mail is transmitted from the wireless communication transmitting / receiving unit 3 and transmitted to the other party via the wireless communication access point 16 and the Internet network 18.

  As a third function of the portable terminal 21, there is an Internet Web access function. Web is a standard document system used on the Internet and Intranet, which describes the logical structure and appearance of a document in a language called HTML (Hyper Text Markup Language). The position of a document (hyperlink) can be embedded. As an Internet standard document system, it has spread explosively since the middle of the 1990s, and a huge web network has been built worldwide, and it is the most frequently used application on the Internet. The Web access function is to access a Web server 20 connected to the Internet 18 by an operator's operation, receive information from the Web server 20, and display the information on a display device such as a liquid crystal screen (not shown).

  For Web access, data indicating the location of the server on the Internet called URL is transmitted by the Web access control unit 12. At the same time, the cellular phone network / data communication network switching unit 2 switches the communication path to the cellular phone network transmitting / receiving unit 1 side to form a communication path. The URL data is transmitted from the mobile phone network transmitting / receiving unit 1 and connected to the target Web server 20 via the mobile phone network base station 15, the mobile phone network 17, and the Internet network 18 to request an HTML document or data file. The requested HTML document or data file is transmitted from the Web server 20 and received by the mobile phone network transmitting / receiving unit 1 via the Internet network 18, the mobile phone network 17, and the mobile phone network base station 15.

  The received HTML document or data file is sent to the Web access control unit via the mobile phone network / data communication network switching unit 2 and processed according to the type of data. However, as described above, communication via the mobile phone network 17 has a low communication speed and a high communication fee. In recent years, multimedia data such as voice and video is often handled, and the data size has become large.

  The downloading of this file will be described in detail. In order to improve this, when a file is downloaded, the file address and file name are stored in the file information storage unit 13. The radio wave intensity measuring unit 4 measures the radio wave intensity of the wireless communication access point 16 at regular intervals, and when a radio wave intensity measuring unit 4 detects a certain value or more, it sends a signal to the mobile phone network / data communication network switching unit 2. This signal is also sent to the Web access control unit 12 to read out file address information and file name information from the file information storage unit 13, and the mobile phone network / data communication network switching unit 2 communicates to the wireless communication transmitting / receiving unit 3 side. A path is switched to form a communication path.

  The file information is transmitted from the wireless communication transmitting / receiving unit 3 and transmitted to the web server 20 via the wireless communication access point 16 and the Internet network 18. The requested data file is transmitted from the Web server 20 and received by the mobile phone network transmitting / receiving unit 1 via the Internet network 18, the mobile phone network 17, and the mobile phone network base station 15. The received data file is sent to the Web access control unit via the mobile phone network / data communication network switching unit 2 and stored in the file storage unit 14.

FIG. 1 is a block diagram showing Embodiment 1 of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cellular telephone network transmission / reception part 2 Cellular telephone network / data communication network switching part 3 Wireless communication transmission / reception part 4 Electric wave intensity measurement part 5 Call control part 6 Voice control part 7 Voice output part 8 Voice input part 9 Mail control part 10 Mail urgency Information storage unit 11 Mail storage unit 12 Web access control unit 13 File information storage unit 14 File storage unit 15 Mobile phone network base station 16 Wireless communication access point 17 Mobile phone network 18 Internet network 19 Mail server 20 Web server 21 Mobile terminal

Claims (5)

A portable terminal that performs voice communication and data communication by a first wireless communication means,
Data storage means for storing data;
A second wireless communication means;
Switching means for switching between the first wireless communication means and the second communication means;
Transmitting means for transmitting data stored in the data storage means using the second wireless communication means;
A portable terminal comprising: The mobile terminal according to claim 1,
Data urgency storage means for storing the urgency level for each data stored in the data storage means;
A portable terminal that transmits data from the first wireless communication means when the urgency of data stored in the data urgency storage means is high. The mobile terminal according to claim 1,
Data urgency storage means for storing the urgency level for each data stored in the data storage means;
Detecting means for detecting the second wireless communication means;
A portable terminal that transmits data from the second wireless communication means when the urgency of the data stored in the data urgency storage means is low. A portable terminal that performs voice communication and data communication by a first wireless communication means,
Data storage means for storing first data;
Data storage means for storing second data;
Switching means for switching between the first wireless communication means and the second communication means;
A portable terminal, wherein data is received by the second wireless communication means, and the data is stored in the second data storage means. The mobile terminal according to claim 4,
Detecting means for detecting the second wireless communication means;
A portable terminal characterized in that when data is stored in the first data storage means, the second wireless communication means receives the data and stores the data in the second data storage means.