JP2002199444A - Mobile radio terminal and data transfer method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile radio terminal that can smoothly transmit data received from a communication terminal. SOLUTION: A transmission available capacity acquisition section 42 extracts reception available capacity information from a signal received from a base station and stores the information to a transmission available capacity storage section 21. A transmission rate information collection section 44 records information of a data transmission rate between the base station and a communication opposite party to a transmission rate information storage section 23. An actual transmission capacity decision section 43 decides an actual transmission capacity for communication between the communication terminal and the base station, in such a way that the average communication speed of the communication will not exceed the data transmission rate, on the basis of the transmission available capacity of the transmission available capacity storage section 21 and the data transmission rate of the transmission speed information storage section 23 and records the decided real transmission capacity to an actual transmission capacity storage section 22. A transmission data flow control section 41 controls communication with the communication terminal through a transmission reception control section 33, on the basis of the real transmission capacity stored in the actual transmission capacity storage section 22 and the capacity of data sent to the base station, so as to avoid the communication terminal to cause time-out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal computer and a PDA (Personal Digital Assistant).
e) The present invention relates to a mobile radio terminal capable of transmitting data input from a communication terminal such as a terminal or a portable facsimile.

[0002]

2. Description of the Related Art As is well known, mobile radio terminals of portable telephone systems and PHS (Personal Handyphone System) have heretofore been used in personal computers and PDAs (Personal Handyphone Systems).
al Digital Assistance) terminal, a portable facsimile, and other interfaces that can be connected, and a function to transmit data input from these devices via wireless lines.

[0003] FIG. 4 illustrates data communication using a conventional mobile radio terminal device by taking as an example a case where the above-described device is connected to a mobile radio terminal device and facsimile data is transmitted. .

As shown in FIG. 1, facsimile data output from a communication terminal is temporarily stored in a mobile radio terminal, then transmitted to a base station via a radio line, and transmitted to a facsimile via a public network. You.

The data transmission speed between the communication terminal and the mobile radio terminal is higher than the data transmission speed on the public network between the base station and the facsimile. For this reason, in order to prevent the data from overflowing on the base station side, the base station notifies the mobile wireless terminal device of the amount of data that can be received, and based on this, the mobile wireless terminal device Data transmission is controlled.

[0006] However, in the conventional mobile radio terminal, the data transmission control as described above is performed with the base station so that the data does not overflow on the base station side. If a large amount of time is required for data transmission to a station, a communication terminal in a standby state after a predetermined amount of data transmission to a mobile wireless terminal device times out, and the communication terminal stops communication. There is.

[0007]

In the conventional mobile radio terminal apparatus, data transmission control is performed between the base station and the base station so that data does not overflow on the base station side. If a large amount of time is required for data transmission to a station, a communication terminal in a standby state after a predetermined amount of data transmission to a mobile wireless terminal device times out, and the communication terminal stops communication. There is.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problem, and prevents a communication terminal from interrupting communication even when a long time is required for data transmission with a base station. It is another object of the present invention to provide a mobile radio terminal device and a data transfer method capable of performing smooth data transmission.

[0009]

In order to achieve the above object, the present invention according to claim 1 comprises a first communication means for communicating with a communication terminal capable of transmitting data, and the first communication means. Data storage means for temporarily storing data received from a communication terminal through the second communication means, second communication means for wirelessly communicating with a base station connectable to a communication network, and a signal received from the base station through the second communication means. From the detection means for detecting receivable capacity information indicating the data capacity receivable by the base station, receivable capacity information detected by the detection means,
A control unit controls the first communication unit based on the communication speed on the communication network to control data reception from the communication terminal.

In the mobile radio terminal having the above-mentioned configuration, data reception from the communication terminal is controlled based on the receivable capacity information detected by the detecting means and the communication speed on the communication network.

Therefore, according to the mobile radio terminal having the above-described configuration, even if a situation where much time is required for communication between the base station and the communication partner station via the communication network occurs, in that case, the communication terminal is required. Therefore, it is possible to prevent the communication terminal from completing data transmission to the mobile wireless terminal device early and time out, and to perform smooth data transmission.

According to another aspect of the present invention, there is provided a wireless communication system comprising: a base station connectable to a communication network; and wireless communication of data received from a communication terminal capable of data transmission. A data transfer method of temporarily storing data received from a communication terminal through a data transfer method for transferring data to a communication network through a network, and receiving receivable capacity information indicating a data capacity receivable by the base station from the base station. Based on the capacity receiving step, the receivable capacity information received in the possible capacity receiving step, and the communication speed on the communication network,
And a control step of controlling data reception from the communication terminal.

In the data transfer method having the above configuration, data reception from the communication terminal is controlled based on the receivable capacity information received in the available capacity receiving step and the communication speed on the communication network.

Therefore, according to the data transfer method having the above configuration, even if a situation where much time is required for communication between a base station and a communication partner station via a communication network occurs, in that case, the communication terminal transmits Data reception can be suppressed,
It is possible to prevent the communication terminal from completing data transmission to the device adopting the data transfer method at an early stage and time out, and to perform smooth data transmission.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of a mobile wireless terminal device according to an embodiment of the present invention. This mobile wireless terminal device includes a wireless circuit 10, a storage circuit 20, a terminal communication circuit 30, and a control circuit 40.

The radio circuit 10 modulates the voice input through the microphone 11a and transmits it as a radio signal to the base station. The radio circuit 10 demodulates the radio signal received from the base station and outputs the voice from the speaker 12a. It comprises a wireless receiving unit 12 for outputting.

The storage circuit 20 includes, for example, a nonvolatile memory,
This section stores various data in a volatile memory or the like, and stores various setting information necessary for communication through a base station and user setting data such as telephone directory data.

The storage circuit 20 includes a transmittable capacity storage unit 21, an actual transmission capacity storage unit 22, and a transmission speed information storage unit 23. Transmission capacity storage unit 21
Stores the value of the receivable capacity notified from the base station.

The actual transmission capacity storage section 22 stores the actual transmission capacity determined by the actual transmission capacity determination section 43 described later. The transmission speed information storage unit 23 stores the speed of data transmission performed between the base station and the communication terminal device of the communication partner.

The terminal communication circuit 30 includes a reception unit 31 for receiving data sent from the communication terminal, a transmission unit 32 for transmitting data to the communication terminal, and a transmission / reception control unit 33 for controlling the reception unit 31 and the transmission unit 32. It has.

The control circuit 40 includes, for example, a microcomputer as a main control device, and controls each unit of the mobile radio terminal device. , The input control through various keys of the key input unit 51, and the display control of the display unit 52. Further, the control circuit 40 includes a transmission data flow control unit 41, a transmittable capacity acquisition unit 42, an actual transmission capacity determination unit 43, a transmission speed information collection unit 44, a data communication control unit 45, and a transmission / reception data storage unit 46. .

The transmittable capacity acquisition section 42 extracts information indicating the receivable capacity from the received signal received from the base station, and records this information in the transmittable capacity storage section 21 as the transmittable capacity through the base station. is there.

The transmission speed information collecting unit 44 is provided with a key input unit 5
1, or information of the data transmission speed between the base station and the communication partner, which is set in advance by the data communication control unit 45 from the communication terminal through the receiving unit 31 or from the base station through the wireless receiving unit 12, and stores the transmission speed information. This is recorded in the unit 23.

The actual transmission capacity determination unit 43 determines the communication terminal and base station based on the available transmission capacity stored in the available transmission capacity storage unit 21 and the data transmission speed stored in the transmission speed information storage unit 23. An actual transmission capacity indicating a transmission capacity for communication so that the average speed of communication performed between stations does not exceed the data transmission speed is determined.
2 is recorded.

The transmission data flow control unit 41 is based on the actual transmission capacity stored in the actual transmission capacity storage unit 22 and the amount of data to be transmitted to the base station.
Is instructed to permit / prohibit reception of data, thereby controlling data reception with the receiving unit 31 of the communication terminal. The data communication control unit 45 performs communication control such as communication start and communication termination based on signals from the transmission / reception control unit 33, the key input unit 51, and the wireless reception unit 12.

The transmission / reception data storage section 46 temporarily stores data received from the communication terminal through the reception section 31 and data received from the base station through the radio reception section 12.

Next, the operation of the mobile radio terminal having the above configuration will be described. Here, a personal computer as a communication terminal is connected to the terminal communication circuit 30, application software for performing facsimile transmission is executed on the personal computer, and facsimile data is transmitted to a facsimile connected to the public network. The operation in this case will be described. 2 and 3
Is a flowchart for explaining the above operation, and the processing shown in this flowchart is performed by the control circuit 40.

A user activates the application software on the personal computer and starts transmitting facsimile data. Then, when a signal requesting transmission of facsimile data is input from the personal computer, first in step 2a, the transmission speed information collecting unit 44 transmits the data via the key input unit 51, the communication terminal through the receiving unit 31, or the base station. The information on the data transmission speed between the base station and the communication partner set in advance by the data communication control unit 45 from the station via the wireless reception unit 12 is obtained, and the information is recorded in the transmission speed information storage unit 23.
Move to

In step 2b, the data communication control unit 45
Thus, based on the data transmission rate set in step 2a, the facsimile data transmission processing is started, and a wireless communication link is established between the wireless circuit 10 and the base station.
Move to step 2c.

In step 2c, the wireless transmission unit 11 and the wireless reception unit 12 perform predetermined authentication processing with the facsimile which is the communication partner through the wireless communication link established in step 2b to establish a communication link. . In step 2d, the receivable capacity acquisition unit 42 obtains the value of the receivable capacity from the received signal received by the wireless receiving unit 12 from the base station, and records this value as the receivable capacity in the transmittable capacity storage unit 21, Move to step 2e.

In step 2e, the actual transmission capacity determining unit 43
Is the average speed of communication performed between the communication terminal and the base station based on the transmittable capacity stored in the transmittable capacity storage unit 21 and the data transmission rate stored in the transmission rate information storage unit 23. Determine the actual transmission capacity indicating the transmission capacity for communication so as not to exceed the data transmission speed,
The determined value is recorded in the actual transmission capacity storage unit 22, and the process proceeds to step 2e.

Then, the transmission / reception control unit 33 controls the reception unit 31 and the transmission unit 32 to start receiving facsimile data from the personal computer.
Move to

Step 2f determines whether or not a signal to end facsimile transmission has been received from the personal computer through the receiving unit 31, from the key input unit 51, or from the base station through the wireless receiving unit 12 through the data communication control. The unit 45 makes the determination.

If the data communication control unit 45 determines that it has received a signal to the effect that it is finished, it proceeds to step 2
g, where the wireless transmitting unit 11 and the wireless receiving unit 1
2 performs predetermined termination processing with the facsimile, disconnects the communication link, and terminates facsimile transmission. On the other hand, when the data communication control unit 45 determines that the signal indicating the end is not received, the process proceeds to step 2h.

Step 2h is a state in which the transmission data flow control unit 41 has given the transmission / reception control unit 33 an instruction to permit data transmission, and the facsimile data received from the personal computer is received by the reception unit 31.
It is determined whether or not it is in the receiving buffer.

Here, the transmission data flow control unit 41
If the instruction to permit data transmission has been given to the transmission / reception control unit 33 and it is determined that the facsimile data received from the personal computer is in the reception buffer of the reception unit 31, the process proceeds to step 2i. If, on the other hand, it is determined that it is not, step 2j
Move to In step 2i, the facsimile data in the reception buffer of the reception unit 31 is stored in the transmission / reception data storage unit 46.
And then goes to step 2j.

In step 2j, the transmission data flow control section 41 determines whether or not the transmission / reception control section 33 is in a state of giving an instruction to permit data transmission. Here, if the transmission data flow control unit 41 is in a state where an instruction to permit data transmission is given, the process proceeds to step 2k. Move to 2o.

In step 2k, the transmission data flow control unit 41 determines whether or not there is facsimile data not yet transmitted in the transmission buffer in the transmission / reception data storage unit 46.

Here, the transmission data flow control unit 41
If it is determined that there is facsimile data that has not yet been transmitted in the transmission buffer in the transmission / reception data storage unit 46, the process proceeds to step 21; otherwise, the process proceeds to step 3a.

In step 21, the actual transmission capacity determination unit 43
Compares the amount of untransmitted facsimile data in the transmission buffer of the transmission / reception data storage unit 46 with the actual transmission capacity stored in the actual transmission capacity storage unit 22 to determine the amount of facsimile data not yet transmitted. Is within the actual transmission capacity.

Here, if the actual transmission capacity determination unit 43 determines that the amount of facsimile data not yet transmitted is within the above-mentioned actual transmission capacity, the processing shifts to step 2m. On the other hand, when the actual transmission capacity determination unit 43 determines that the amount of facsimile data that has not been transmitted is larger than the actual transmission capacity, the process proceeds to step 2n.

In step 2m, the data communication control unit 45
Starts the process of transmitting untransmitted facsimile data in the transmission buffer of the transmission / reception data storage unit 46 to the facsimile from the wireless transmission unit 11 through the base station, and proceeds to step 3a.

In step 2n, the transmission data flow control unit 41 gives an instruction to the transmission / reception control unit 33 to prohibit data transmission. Thus, the transmission / reception control unit 33 notifies the personal computer of the stop of the transmission of the facsimile data, thereby stopping the reception of the facsimile data from the reception unit 31 and proceeds to step 3a.
Move to

On the other hand, in step 2o, the transmission data flow control unit 41 determines whether or not there is facsimile data not yet transmitted in the transmission buffer in the transmission / reception data storage unit 46.

Here, the transmission data flow control unit 41
If it is determined that there is facsimile data not yet transmitted in the transmission buffer in the transmission / reception data storage unit 46, the process proceeds to step 2p, and if not, the process proceeds to step 2q.

In step 2p, the data communication control unit 45
Starts the process of transmitting untransmitted facsimile data in the transmission buffer of the transmission / reception data storage unit 46 to the facsimile from the wireless transmission unit 11 through the base station, and proceeds to step 3a.

In step 2q, the data communication control unit 45
However, in order to obtain information indicating the receivable capacity from the base station via the wireless reception unit 12, the wireless transmission unit 11 is instructed to transmit dummy data that does not include facsimile data. Then, in response, wireless transmitting section 11 transmits the dummy data to the base station, and proceeds to step 3a.

In step 3a, the receivable capacity acquisition unit 42 monitors the reception signal received by the radio reception unit 12, and determines whether data indicating the receivable capacity has been received from the base station. Here, when the transmittable capacity obtaining unit 42 determines that the data indicating the credible capacity has been received, the process proceeds to step 3b, and when it determines that the data cannot be received, the process proceeds to step 2g. Move to

In step 3b, the transmission data flow control unit 41 determines whether or not the transmission / reception control unit 33 is in a state of giving an instruction to permit data transmission. Here, the transmission data flow control unit 41 is
If it is determined that an instruction to permit data transmission has been given to, the process proceeds to step 2g, while it is determined that an instruction to prohibit data transmission has been given to the transmission / reception control unit 33. In this case, the process proceeds to step 3c.

In step 3c, the transmittable capacity acquisition section 42 obtains the received signal received by the radio reception section 12 from the base station.
Calculates the value of the receivable capacity and records this value as the receivable capacity in the receivable capacity storage unit 21.
Move to

In step 3d, the actual transmission capacity determining unit 43
Is used to update the actual transmission capacity based on the transmission capacity stored in the transmission capacity storage unit 21 and the data transmission rate stored in the transmission rate information storage unit 23. The actual transmission capacity indicating the transmission capacity from the mobile radio terminal device to the base station is determined so that the average speed of communication performed between the stations does not exceed the data transmission speed, and the process proceeds to step 3e.

In step 3e, it is determined whether the value of the actual transmission capacity newly obtained in step 3d is greater than 0, that is, whether the facsimile data can be transmitted to the base station. The capacity determination unit 43 makes the determination.
Here, if it is determined in step 3d that the value of the actual transmission capacity newly obtained is larger than 0, the process proceeds to step 3f, while it is determined that the value of the actual transmission capacity is less than 0. In this case, the process proceeds to step 2g.

In step 3f, the actual transmission capacity determining unit 43
Updates and records the actual transmission capacity newly obtained in step 3d in the actual transmission capacity storage unit 22, and shifts to step 3g. In step 3g, the transmission data flow control unit 41
Gives an instruction to permit data transmission to the transmission / reception control unit 33, and proceeds to step 2g.

As described above, in the mobile radio terminal having the above-described configuration, the mobile radio terminal can be configured based on the receivable capacity notified from the base station and the data transmission speed indicating the communication speed on the network. An actual transmission capacity indicating a transmission capacity from the mobile radio terminal device to the base station is determined such that an average speed of communication performed between the communication terminal (personal computer) and the base station via the communication terminal does not exceed the data transmission speed.

Then, the obtained actual transmission capacity is compared with the amount of untransmitted data (facsimile data) remaining in the mobile radio terminal, and if the amount of data exceeds the actual transmission capacity, , Data input from the communication terminal is restricted.

That is, the input of the data input from the communication terminal is controlled based on the receivable capacity notified from the base station and the data transmission speed indicating the communication speed on the network.

Therefore, according to the mobile radio terminal having the above configuration, even if the data transmission control is performed between the mobile radio terminal and the base station so that the data does not overflow at the base station, the communication terminal does not time out. Can control the reception of data from the communication terminal, so that even if a lot of time is required for data transmission with the base station, it is possible to prevent the communication terminal from stopping You can send.

The present invention is not limited to the above embodiment. It goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0059]

As described above, according to the present invention, data reception from a communication terminal is controlled based on the receivable capacity information detected by the detecting means and the communication speed on the communication network. I have.

Therefore, according to the present invention, even if a situation where much time is required for communication between a base station and a communication partner station via a communication network occurs, data reception from a communication terminal is performed in that case. As a result, it is possible to prevent the communication terminal from completing data transmission to the mobile wireless terminal device early and time out, and to provide a mobile wireless terminal device capable of performing smooth data transmission. .

According to the present invention, data reception from the communication terminal is controlled based on the receivable capacity information received in the available capacity receiving step and the communication speed on the communication network.

Therefore, according to the present invention, even when a situation where much time is required for communication between a base station and a communication partner station via a communication network occurs, data reception from the communication terminal is performed in that case. Since it is possible to suppress, it is possible to prevent the communication terminal from completing data transmission to the device adopting the data transfer method early and time out,
A data transfer method capable of performing smooth data transmission can be provided.

[Brief description of the drawings]

FIG. 1 is a circuit block diagram showing a configuration of an embodiment of a mobile wireless terminal device according to the present invention.

FIG. 2 is a flowchart for explaining a communication control operation of the mobile wireless terminal device shown in FIG. 1;

FIG. 3 is a flowchart for explaining a communication control operation of the mobile wireless terminal device shown in FIG. 1;

FIG. 4 is a diagram showing a system for performing data transmission using a mobile wireless terminal device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Wireless circuit 11 ... Wireless transmission part 11a ... Microphone 12 ... Wireless reception part 12a ... Speaker 20 ... Storage circuit 21 ... Transmission capacity storage part 22 ... Actual transmission capacity storage part 23 ... Transmission speed information storage part 30 ... Terminal communication circuit DESCRIPTION OF SYMBOLS 31 ... Receiving part 32 ... Transmission part 33 ... Transmission / reception control part 40 ... Control circuit 41 ... Transmission data flow control part 42 ... Transmission capacity acquisition part 43 ... Actual transmission capacity determination part 44 ... Transmission speed information collection part 45 ... Data communication control Unit 46: Transmission / reception data storage unit 51: Key input unit 52: Display unit

Claims (6)

[Claims] A first communication unit for communicating with a communication terminal capable of transmitting data, a data storage unit for temporarily storing data received from the communication terminal through the first communication unit, and a connection to a communication network. A second communication unit for wirelessly communicating with a possible base station; and a detection for detecting receivable capacity information indicating a data capacity receivable by the base station from a signal received from the base station through the second communication unit. Control means for controlling the first communication means to control data reception from the communication terminal based on receivable capacity information detected by the detection means and a communication speed on the communication network. A mobile radio terminal device comprising: 2. The control unit controls the second communication unit based on the receivable capacity information detected by the detection unit, and transmits data stored in the data storage unit to the base station. The mobile radio terminal device according to claim 1, wherein the mobile radio terminal device performs control to perform the control. 3. The control unit includes an actual transmission capacity determination unit that determines an actual transmission available capacity based on the receivable capacity information detected by the detection unit and a communication speed on the communication network. The actual transmittable capacity determined by the actual transmission capacity determining means;
2. The method according to claim 1, further comprising: comparing a data capacity stored in said data storage means with said first communication means based on a result of the comparison to control data reception from said communication terminal. Or the mobile radio terminal device according to claim 2. 4. A data transfer method for performing wireless communication with a base station connectable to a communication network and transferring data received from a communication terminal capable of data transmission to the communication network through the wireless communication, wherein the data received from the communication terminal is received from the communication terminal. A data accumulating step of temporarily accumulating data; a receivable capacity receiving step of receiving receivable capacity information indicating a receivable data capacity of the base station from the base station; A data transfer method, comprising: a reception control step of controlling data reception from the communication terminal based on receivable capacity information and a communication speed on the communication network. 5. The control step controls wireless communication with the base station based on the receivable capacity information received in the possible capacity receiving step, and stores the data stored in the data storing step. The method according to claim 4, wherein the data is transmitted to the base station. 6. The actual transmission capacity determining step for obtaining an actual transmission available capacity based on the receivable capacity information received in the available capacity receiving step and a communication speed on the communication network. , The actual transmittable capacity determined in the actual transmission capacity determination step,
6. The data transfer according to claim 4, wherein a data capacity stored in the data storage step is compared, and data reception from the communication terminal is controlled based on a result of the comparison. Method.